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SUSE-SU-2026:22412-1
Vulnerability from csaf_suse - Published: 2026-06-24 09:59 - Updated: 2026-06-24 09:59Summary
Security update for the Linux Kernel RT (Live Patch 21 for SUSE Linux Enterprise Micro 6.0)
Severity
Important
Notes
Title of the patch: Security update for the Linux Kernel RT (Live Patch 21 for SUSE Linux Enterprise Micro 6.0)
Description of the patch:
This update for the SUSE Linux Enterprise Kernel 6.4.0-43.1 fixes various security issues
The following security issues were fixed:
- CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264096).
- CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261640).
- CVE-2026-31504: net: fix fanout UAF in packet_release() via NETDEV_UP race (bsc#1263088).
- CVE-2026-31694: fuse: reject oversized dirents in page cache (bsc#1263902).
- CVE-2026-43503: final dirty.frag related fixes (bsc#1266229).
- CVE-2026-46300: FragNesia attack: another xfrm/esp based local root exploit (bsc#1265224).
- CVE-2026-46323: net: gro: don't merge zcopy skbs (bsc#1268282).
- CVE-2026-46333: ptrace: slightly saner 'get_dumpable()' logic (bsc#1265384).
- net/sched: fix pedit partial COW leading to page cache (bsc#1267625).
Patchnames: SUSE-SLE-Micro-6.0-kernel-479
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
7.4 (High)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
8.2 (High)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
7.8 (High)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
8.8 (High)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
8.8 (High)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
7.8 (High)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
References
54 references
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"text": "\nThis update for the SUSE Linux Enterprise Kernel 6.4.0-43.1 fixes various security issues\n\nThe following security issues were fixed:\n\n- CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264096).\n- CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261640).\n- CVE-2026-31504: net: fix fanout UAF in packet_release() via NETDEV_UP race (bsc#1263088).\n- CVE-2026-31694: fuse: reject oversized dirents in page cache (bsc#1263902).\n- CVE-2026-43503: final dirty.frag related fixes (bsc#1266229).\n- CVE-2026-46300: FragNesia attack: another xfrm/esp based local root exploit (bsc#1265224).\n- CVE-2026-46323: net: gro: don\u0027t merge zcopy skbs (bsc#1268282).\n- CVE-2026-46333: ptrace: slightly saner \u0027get_dumpable()\u0027 logic (bsc#1265384).\n- net/sched: fix pedit partial COW leading to page cache (bsc#1267625).\n",
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"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027192.html"
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{
"category": "self",
"summary": "SUSE Bug 1261640",
"url": "https://bugzilla.suse.com/1261640"
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"category": "self",
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{
"category": "self",
"summary": "SUSE Bug 1264096",
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{
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"summary": "SUSE Bug 1265224",
"url": "https://bugzilla.suse.com/1265224"
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{
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"summary": "SUSE Bug 1265384",
"url": "https://bugzilla.suse.com/1265384"
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{
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"url": "https://bugzilla.suse.com/1266229"
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{
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"url": "https://bugzilla.suse.com/1267625"
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{
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"summary": "SUSE Bug 1268282",
"url": "https://bugzilla.suse.com/1268282"
},
{
"category": "self",
"summary": "SUSE CVE CVE-2025-54518 page",
"url": "https://www.suse.com/security/cve/CVE-2025-54518/"
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{
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"summary": "SUSE CVE CVE-2026-31402 page",
"url": "https://www.suse.com/security/cve/CVE-2026-31402/"
},
{
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"summary": "SUSE CVE CVE-2026-31504 page",
"url": "https://www.suse.com/security/cve/CVE-2026-31504/"
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"url": "https://www.suse.com/security/cve/CVE-2026-31694/"
},
{
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"summary": "SUSE CVE CVE-2026-43503 page",
"url": "https://www.suse.com/security/cve/CVE-2026-43503/"
},
{
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"summary": "SUSE CVE CVE-2026-46300 page",
"url": "https://www.suse.com/security/cve/CVE-2026-46300/"
},
{
"category": "self",
"summary": "SUSE CVE CVE-2026-46323 page",
"url": "https://www.suse.com/security/cve/CVE-2026-46323/"
},
{
"category": "self",
"summary": "SUSE CVE CVE-2026-46333 page",
"url": "https://www.suse.com/security/cve/CVE-2026-46333/"
}
],
"title": "Security update for the Linux Kernel RT (Live Patch 21 for SUSE Linux Enterprise Micro 6.0)",
"tracking": {
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"branches": [
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{
"branches": [
{
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"name": "kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64",
"product": {
"name": "kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64",
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}
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"notes": [
{
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"text": "Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation.",
"title": "CVE description"
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],
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"url": "https://bugzilla.suse.com/1264013"
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{
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"url": "https://bugzilla.suse.com/1264096"
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]
}
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"version": "3.1"
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"products": [
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"text": "https://www.suse.com/security/cve/CVE-2026-31402"
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],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix heap overflow in NFSv4.0 LOCK replay cache\n\nThe NFSv4.0 replay cache uses a fixed 112-byte inline buffer\n(rp_ibuf[NFSD4_REPLAY_ISIZE]) to store encoded operation responses.\nThis size was calculated based on OPEN responses and does not account\nfor LOCK denied responses, which include the conflicting lock owner as\na variable-length field up to 1024 bytes (NFS4_OPAQUE_LIMIT).\n\nWhen a LOCK operation is denied due to a conflict with an existing lock\nthat has a large owner, nfsd4_encode_operation() copies the full encoded\nresponse into the undersized replay buffer via read_bytes_from_xdr_buf()\nwith no bounds check. This results in a slab-out-of-bounds write of up\nto 944 bytes past the end of the buffer, corrupting adjacent heap memory.\n\nThis can be triggered remotely by an unauthenticated attacker with two\ncooperating NFSv4.0 clients: one sets a lock with a large owner string,\nthen the other requests a conflicting lock to provoke the denial.\n\nWe could fix this by increasing NFSD4_REPLAY_ISIZE to allow for a full\nopaque, but that would increase the size of every stateowner, when most\nlockowners are not that large.\n\nInstead, fix this by checking the encoded response length against\nNFSD4_REPLAY_ISIZE before copying into the replay buffer. If the\nresponse is too large, set rp_buflen to 0 to skip caching the replay\npayload. The status is still cached, and the client already received the\ncorrect response on the original request.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-31402",
"url": "https://www.suse.com/security/cve/CVE-2026-31402"
},
{
"category": "external",
"summary": "SUSE Bug 1261638 for CVE-2026-31402",
"url": "https://bugzilla.suse.com/1261638"
},
{
"category": "external",
"summary": "SUSE Bug 1261640 for CVE-2026-31402",
"url": "https://bugzilla.suse.com/1261640"
},
{
"category": "external",
"summary": "SUSE Bug 1265160 for CVE-2026-31402",
"url": "https://bugzilla.suse.com/1265160"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-06-24T09:59:05Z",
"details": "important"
}
],
"title": "CVE-2026-31402"
},
{
"cve": "CVE-2026-31504",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-31504"
}
],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix fanout UAF in packet_release() via NETDEV_UP race\n\n`packet_release()` has a race window where `NETDEV_UP` can re-register a\nsocket into a fanout group\u0027s `arr[]` array. The re-registration is not\ncleaned up by `fanout_release()`, leaving a dangling pointer in the fanout\narray.\n`packet_release()` does NOT zero `po-\u003enum` in its `bind_lock` section.\nAfter releasing `bind_lock`, `po-\u003enum` is still non-zero and `po-\u003eifindex`\nstill matches the bound device. A concurrent `packet_notifier(NETDEV_UP)`\nthat already found the socket in `sklist` can re-register the hook.\nFor fanout sockets, this re-registration calls `__fanout_link(sk, po)`\nwhich adds the socket back into `f-\u003earr[]` and increments `f-\u003enum_members`,\nbut does NOT increment `f-\u003esk_ref`.\n\nThe fix sets `po-\u003enum` to zero in `packet_release` while `bind_lock` is\nheld to prevent NETDEV_UP from linking, preventing the race window.\n\nThis bug was found following an additional audit with Claude Code based\non CVE-2025-38617.",
"title": "CVE description"
}
],
"product_status": {
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"SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-31504",
"url": "https://www.suse.com/security/cve/CVE-2026-31504"
},
{
"category": "external",
"summary": "SUSE Bug 1263085 for CVE-2026-31504",
"url": "https://bugzilla.suse.com/1263085"
},
{
"category": "external",
"summary": "SUSE Bug 1263088 for CVE-2026-31504",
"url": "https://bugzilla.suse.com/1263088"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-06-24T09:59:05Z",
"details": "important"
}
],
"title": "CVE-2026-31504"
},
{
"cve": "CVE-2026-31694",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-31694"
}
],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: reject oversized dirents in page cache\n\nfuse_add_dirent_to_cache() computes a serialized dirent size from the\nserver-controlled namelen field and copies the dirent into a single\npage-cache page. The existing logic only checks whether the dirent fits\nin the remaining space of the current page and advances to a fresh page\nif not. It never checks whether the dirent itself exceeds PAGE_SIZE.\n\nAs a result, a malicious FUSE server can return a dirent with\nnamelen=4095, producing a serialized record size of 4120 bytes. On 4 KiB\npage systems this causes memcpy() to overflow the cache page by 24 bytes\ninto the following kernel page.\n\nReject dirents that cannot fit in a single page before copying them into\nthe readdir cache.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-31694",
"url": "https://www.suse.com/security/cve/CVE-2026-31694"
},
{
"category": "external",
"summary": "SUSE Bug 1263901 for CVE-2026-31694",
"url": "https://bugzilla.suse.com/1263901"
},
{
"category": "external",
"summary": "SUSE Bug 1263902 for CVE-2026-31694",
"url": "https://bugzilla.suse.com/1263902"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.0:kernel-livepatch-6_4_0-43-rt-2-1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-06-24T09:59:05Z",
"details": "important"
}
],
"title": "CVE-2026-31694"
},
{
"cve": "CVE-2026-43503",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-43503"
}
],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: skbuff: propagate shared-frag marker through frag-transfer helpers\n\nTwo frag-transfer helpers (__pskb_copy_fclone() and skb_shift()) fail\nto propagate the SKBFL_SHARED_FRAG bit in skb_shinfo()-\u003eflags when\nmoving frags from source to destination. __pskb_copy_fclone() defers\nthe rest of the shinfo metadata to skb_copy_header() after copying\nfrag descriptors, but that helper only carries over gso_{size,segs,\ntype} and never touches skb_shinfo()-\u003eflags; skb_shift() moves frag\ndescriptors directly and leaves flags untouched. As a result, the\ndestination skb keeps a reference to the same externally-owned or\npage-cache-backed pages while reporting skb_has_shared_frag() as\nfalse.\n\nThe mismatch is harmful in any in-place writer that uses\nskb_has_shared_frag() to decide whether shared pages must be detoured\nthrough skb_cow_data(). ESP input is one such writer (esp4.c,\nesp6.c), and a single nft \u0027dup to \u003clocal\u003e\u0027 rule -- or any other\nnf_dup_ipv4() / xt_TEE caller -- is enough to land a pskb_copy()\u0027d\nskb in esp_input() with the marker stripped, letting an unprivileged\nuser write into the page cache of a root-owned read-only file via\nauthencesn-ESN stray writes.\n\nSet SKBFL_SHARED_FRAG on the destination whenever frag descriptors\nwere actually moved from the source. skb_copy() and skb_copy_expand()\nshare skb_copy_header() too but linearize all paged data into freshly\nallocated head storage and emerge with nr_frags == 0, so\nskb_has_shared_frag() returns false on its own; they need no change.\n\nThe same omission exists in skb_gro_receive() and skb_gro_receive_list().\nThe former moves the incoming skb\u0027s frag descriptors into the\naccumulator\u0027s last sub-skb via two paths (a direct frag-move loop and\nthe head_frag + memcpy path); the latter chains the incoming skb whole\nonto p\u0027s frag_list. Downstream skb_segment() reads only\nskb_shinfo(p)-\u003eflags, and skb_segment_list() reuses each sub-skb\u0027s\nshinfo as the nskb -- both p and lp must carry the marker.\n\nThe same omission also exists in tcp_clone_payload(), which builds an\nMTU probe skb by moving frag descriptors from skbs on sk_write_queue\ninto a freshly allocated nskb. The helper falls into the same family\nand warrants the same fix for consistency; no TCP TX-side in-place\nwriter is currently known to reach a user page through this gap, but\na future consumer depending on the marker would regress silently.\n\nThe same omission exists in skb_segment(): the per-iteration flag\nmerge takes only head_skb\u0027s flag, and the inner switch that rebinds\nfrag_skb to list_skb on head_skb-frags exhaustion does not fold the\nnew frag_skb\u0027s flag into nskb. Fold frag_skb\u0027s flag at both sites\nso segments drawing frags from frag_list members carry the marker.",
"title": "CVE description"
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"url": "https://bugzilla.suse.com/1266229"
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"url": "https://bugzilla.suse.com/1270098"
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},
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"ids": [
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"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-46300"
}
],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: skbuff: preserve shared-frag marker during coalescing\n\nskb_try_coalesce() can attach paged frags from @from to @to. If @from\nhas SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same\nexternally-owned or page-cache-backed frags, but the shared-frag marker\nis currently lost.\n\nThat breaks the invariant relied on by later in-place writers. In\nparticular, ESP input checks skb_has_shared_frag() before deciding\nwhether an uncloned nonlinear skb can skip skb_cow_data(). If TCP\nreceive coalescing has moved shared frags into an unmarked skb, ESP can\nsee skb_has_shared_frag() as false and decrypt in place over page-cache\nbacked frags.\n\nPropagate SKBFL_SHARED_FRAG when skb_try_coalesce() transfers paged\nfrags. The tailroom copy path does not need the marker because it copies\nbytes into @to\u0027s linear data rather than transferring frag descriptors.",
"title": "CVE description"
}
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"category": "external",
"summary": "SUSE Bug 1265209 for CVE-2026-46300",
"url": "https://bugzilla.suse.com/1265209"
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{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: gro: don\u0027t merge zcopy skbs\n\nskb_gro_receive() can currently copy frags between the source and GRO\nskb, without checking the zerocopy status, and in particular the\nSKBFL_MANAGED_FRAG_REFS flag.\n\nWhen SKBFL_MANAGED_FRAG_REFS is set, the skb doesn\u0027t hold a reference\non the pages in shinfo-\u003efrags. Appending those frags to another skb\u0027s\nfrags without fixing up the page refcount can lead to UAF.\n\nWhen either the last skb in the GRO chain (the one we would append\nfrags to) or the source skb is zerocopy, don\u0027t merge the skbs.",
"title": "CVE description"
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"text": "https://www.suse.com/security/cve/CVE-2026-46333"
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"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nptrace: slightly saner \u0027get_dumpable()\u0027 logic\n\nThe \u0027dumpability\u0027 of a task is fundamentally about the memory image of\nthe task - the concept comes from whether it can core dump or not - and\nmakes no sense when you don\u0027t have an associated mm.\n\nAnd almost all users do in fact use it only for the case where the task\nhas a mm pointer.\n\nBut we have one odd special case: ptrace_may_access() uses \u0027dumpable\u0027 to\ncheck various other things entirely independently of the MM (typically\nexplicitly using flags like PTRACE_MODE_READ_FSCREDS). Including for\nthreads that no longer have a VM (and maybe never did, like most kernel\nthreads).\n\nIt\u0027s not what this flag was designed for, but it is what it is.\n\nThe ptrace code does check that the uid/gid matches, so you do have to\nbe uid-0 to see kernel thread details, but this means that the\ntraditional \"drop capabilities\" model doesn\u0027t make any difference for\nthis all.\n\nMake it all make a *bit* more sense by saying that if you don\u0027t have a\nMM pointer, we\u0027ll use a cached \"last dumpability\" flag if the thread\never had a MM (it will be zero for kernel threads since it is never\nset), and require a proper CAP_SYS_PTRACE capability to override.",
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CVE-2025-54518 (GCVE-0-2025-54518)
Vulnerability from cvelistv5 – Published: 2026-05-15 03:06 – Updated: 2026-06-30 12:07
VLAI
EPSS
Summary
Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://www.amd.com/en/resources/product-security… | |
| http://www.openwall.com/lists/oss-security/2026/0… | |
| http://xenbits.xen.org/xsa/advisory-490.html | |
| https://access.redhat.com/security/cve/CVE-2025-54518 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2477784 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
21 products
Date Public
2026-05-15 03:05
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"product": "AMD EPYC\u2122 Embedded 7002 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "OS kernel"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen Embedded V2000A Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedV2KAPI-FP6 1.0.0.A"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded V2000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP6_1.0.0.D"
}
]
}
],
"datePublic": "2026-05-15T03:05:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation.\u003cbr\u003e"
}
],
"value": "Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation."
}
],
"metrics": [
{
"cvssV4_0": {
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
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"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1189",
"description": "CWE-1189 Improper Isolation of Shared Resources on System-on-a-Chip (SoC)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-15T03:06:57.446Z",
"orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
"shortName": "AMD"
},
"references": [
{
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-7052.html"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "AMD PSIRT Automation 1.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
"assignerShortName": "AMD",
"cveId": "CVE-2025-54518",
"datePublished": "2026-05-15T03:06:30.822Z",
"dateReserved": "2025-07-23T15:01:52.883Z",
"dateUpdated": "2026-06-30T12:07:18.344Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-31402 (GCVE-0-2026-31402)
Vulnerability from cvelistv5 – Published: 2026-04-03 15:16 – Updated: 2026-06-30 12:07
VLAI
EPSS
Title
nfsd: fix heap overflow in NFSv4.0 LOCK replay cache
Summary
In the Linux kernel, the following vulnerability has been resolved:
nfsd: fix heap overflow in NFSv4.0 LOCK replay cache
The NFSv4.0 replay cache uses a fixed 112-byte inline buffer
(rp_ibuf[NFSD4_REPLAY_ISIZE]) to store encoded operation responses.
This size was calculated based on OPEN responses and does not account
for LOCK denied responses, which include the conflicting lock owner as
a variable-length field up to 1024 bytes (NFS4_OPAQUE_LIMIT).
When a LOCK operation is denied due to a conflict with an existing lock
that has a large owner, nfsd4_encode_operation() copies the full encoded
response into the undersized replay buffer via read_bytes_from_xdr_buf()
with no bounds check. This results in a slab-out-of-bounds write of up
to 944 bytes past the end of the buffer, corrupting adjacent heap memory.
This can be triggered remotely by an unauthenticated attacker with two
cooperating NFSv4.0 clients: one sets a lock with a large owner string,
then the other requests a conflicting lock to provoke the denial.
We could fix this by increasing NFSD4_REPLAY_ISIZE to allow for a full
opaque, but that would increase the size of every stateowner, when most
lockowners are not that large.
Instead, fix this by checking the encoded response length against
NFSD4_REPLAY_ISIZE before copying into the replay buffer. If the
response is too large, set rp_buflen to 0 to skip caching the replay
payload. The status is still cached, and the client already received the
correct response on the original request.
Severity
9.8 (Critical)
7.8 (High)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
30 references
Impacted products
52 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f9fcb4441f6c02bb20c2eb340101e27dfe23607c
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2665887a69437a8a4f552f69509eecfb73d4aa19 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c9452c0797c95cf2378170df96cf4f4b3bca7eff (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8afb437ea1f70cacb4bbdf11771fb5c4d720b965 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < dad0c3c0a8e5d1d6eb0fc455694ce3e25e6c57d0 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0f0e2a54a31a7f9ad2915db99156114872317388 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ae8498337dfdfda71bdd0b807c9a23a126011d76 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5133b61aaf437e5f25b1b396b14242a6bb0508e2 (git) |
|
| Linux | Linux |
Affected:
2.6.12
Unaffected: 0 , < 2.6.12 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.20 , ≤ 6.18.* (semver) Unaffected: 6.19.10 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
|
| Red Hat | Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) |
cpe:/o:redhat:rhel_els:6 |
|
| Red Hat | Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) |
cpe:/o:redhat:rhel_els:6 |
|
| Red Hat | Red Hat Enterprise Linux Server (v. 7 ELS) |
cpe:/o:redhat:rhel_els:7 |
|
| Red Hat | Red Hat Enterprise Linux for Real Time (v. 7 ELS) |
cpe:/a:redhat:rhel_extras_rt_els:7 |
|
| Red Hat | Red Hat Enterprise Linux Server Optional (v. 7 ELS) |
cpe:/o:redhat:rhel_els:7 |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 10) |
cpe:/o:redhat:enterprise_linux:10.1 cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 9) |
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux BaseOS (v. 10) |
cpe:/o:redhat:enterprise_linux:10.1 cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux BaseOS (v. 8) |
cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS AUS (v.8.4) |
cpe:/o:redhat:rhel_aus:8.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) |
cpe:/o:redhat:rhel_eus_long_life:8.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS AUS (v.8.6) |
cpe:/o:redhat:rhel_aus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.8.6) |
cpe:/o:redhat:rhel_e4s:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS TUS (v.8.6) |
cpe:/o:redhat:rhel_tus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.8.8) |
cpe:/o:redhat:rhel_e4s:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS TUS (v.8.8) |
cpe:/o:redhat:rhel_tus:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.0) |
cpe:/o:redhat:rhel_e4s:9.0::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.2) |
cpe:/o:redhat:rhel_e4s:9.2::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v.9.4) |
cpe:/o:redhat:rhel_eus:9.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v.9.6) |
cpe:/o:redhat:rhel_eus:9.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS (v. 9) |
cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) |
cpe:/o:redhat:enterprise_linux:10.1 cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux CRB (v. 8) |
cpe:/a:redhat:enterprise_linux:8::crb |
|
| Red Hat | Red Hat CodeReady Linux Builder EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::crb |
|
| Red Hat | Red Hat CodeReady Linux Builder EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::crb |
|
| Red Hat | Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) |
cpe:/a:redhat:enterprise_linux:9::crb |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV (v. 10) |
cpe:/o:redhat:enterprise_linux:10.1 cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux NFV (v. 8) |
cpe:/a:redhat:enterprise_linux:8::nfv |
|
| Red Hat | Red Hat Enterprise Linux NFV E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV (v. 9) |
cpe:/a:redhat:enterprise_linux:9::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux Real Time (v. 10) |
cpe:/o:redhat:enterprise_linux:10.1 cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux RT (v. 8) |
cpe:/a:redhat:enterprise_linux:8::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time (v. 9) |
cpe:/a:redhat:enterprise_linux:9::realtime |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:/o:redhat:rhel_els:6"
],
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{
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{
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{
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{
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"defaultStatus": "affected",
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{
"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS EUS (v. 10.0)",
"vendor": "Red Hat"
},
{
"cpes": [
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"cpe:/o:redhat:enterprise_linux:10.2"
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:8::baseos"
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS (v. 8)",
"vendor": "Red Hat"
},
{
"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS AUS (v.8.4)",
"vendor": "Red Hat"
},
{
"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)",
"vendor": "Red Hat"
},
{
"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS AUS (v.8.6)",
"vendor": "Red Hat"
},
{
"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS E4S (v.8.6)",
"vendor": "Red Hat"
},
{
"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS TUS (v.8.6)",
"vendor": "Red Hat"
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{
"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS E4S (v.8.8)",
"vendor": "Red Hat"
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{
"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS TUS (v.8.8)",
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{
"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS E4S (v.9.0)",
"vendor": "Red Hat"
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{
"cpes": [
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"product": "Red Hat Enterprise Linux BaseOS E4S (v.9.2)",
"vendor": "Red Hat"
},
{
"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS EUS (v.9.4)",
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"cpes": [
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"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS EUS (v.9.6)",
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{
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{
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CVE-2026-31504 (GCVE-0-2026-31504)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:54 – Updated: 2026-05-11 22:10
VLAI
EPSS
Title
net: fix fanout UAF in packet_release() via NETDEV_UP race
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: fix fanout UAF in packet_release() via NETDEV_UP race
`packet_release()` has a race window where `NETDEV_UP` can re-register a
socket into a fanout group's `arr[]` array. The re-registration is not
cleaned up by `fanout_release()`, leaving a dangling pointer in the fanout
array.
`packet_release()` does NOT zero `po->num` in its `bind_lock` section.
After releasing `bind_lock`, `po->num` is still non-zero and `po->ifindex`
still matches the bound device. A concurrent `packet_notifier(NETDEV_UP)`
that already found the socket in `sklist` can re-register the hook.
For fanout sockets, this re-registration calls `__fanout_link(sk, po)`
which adds the socket back into `f->arr[]` and increments `f->num_members`,
but does NOT increment `f->sk_ref`.
The fix sets `po->num` to zero in `packet_release` while `bind_lock` is
held to prevent NETDEV_UP from linking, preventing the race window.
This bug was found following an additional audit with Claude Code based
on CVE-2025-38617.
Severity
7.8 (High)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
ce06b03e60fc19c680d1bf873e779bf11c2fc518 , < ee642b1962caa9aa231c01abbd58bc453ae6b66e
(git)
Affected: ce06b03e60fc19c680d1bf873e779bf11c2fc518 , < 42cfd7898eeed290c9fb73f732af1f7d6b0a703e (git) Affected: ce06b03e60fc19c680d1bf873e779bf11c2fc518 , < 1b4c03f8892d955385c202009af7485364731bb9 (git) Affected: ce06b03e60fc19c680d1bf873e779bf11c2fc518 , < 654386baef228c2992dbf604c819e4c7c35fc71b (git) Affected: ce06b03e60fc19c680d1bf873e779bf11c2fc518 , < 75fe6db23705a1d55160081f7b37db9665b1880b (git) Affected: ce06b03e60fc19c680d1bf873e779bf11c2fc518 , < d0c7cdc15fdf8c4f91aca1928e52295d175b6ec6 (git) Affected: ce06b03e60fc19c680d1bf873e779bf11c2fc518 , < ceccbfc6de720ad633519a226715989cfb065af1 (git) Affected: ce06b03e60fc19c680d1bf873e779bf11c2fc518 , < 42156f93d123436f2a27c468f18c966b7e5db796 (git) |
|
| Linux | Linux |
Affected:
3.1
Unaffected: 0 , < 3.1 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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CVE-2026-31694 (GCVE-0-2026-31694)
Vulnerability from cvelistv5 – Published: 2026-05-01 13:53 – Updated: 2026-07-02 13:44
VLAI
EPSS
Title
fuse: reject oversized dirents in page cache
Summary
In the Linux kernel, the following vulnerability has been resolved:
fuse: reject oversized dirents in page cache
fuse_add_dirent_to_cache() computes a serialized dirent size from the
server-controlled namelen field and copies the dirent into a single
page-cache page. The existing logic only checks whether the dirent fits
in the remaining space of the current page and advances to a fresh page
if not. It never checks whether the dirent itself exceeds PAGE_SIZE.
As a result, a malicious FUSE server can return a dirent with
namelen=4095, producing a serialized record size of 4120 bytes. On 4 KiB
page systems this causes memcpy() to overflow the cache page by 24 bytes
into the following kernel page.
Reject dirents that cannot fit in a single page before copying them into
the readdir cache.
Severity
7.8 (High)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
27992ef80770d61a57f6c3a551735b08cefdffa3 , < 7de93abfaae1b2dc94da8a07a36421bd073f1d8f
(git)
Affected: 27992ef80770d61a57f6c3a551735b08cefdffa3 , < 474ce83c96a55f2eeb14dee2be375eeadfdacdf5 (git) Affected: 27992ef80770d61a57f6c3a551735b08cefdffa3 , < 51a8de6c50bf947c8f534cd73da4c8f0a13e7bed (git) |
|
| Linux | Linux |
Affected:
6.15
Unaffected: 0 , < 6.15 (semver) Unaffected: 6.18.25 , ≤ 6.18.* (semver) Unaffected: 7.0.2 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
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CVE-2026-43503 (GCVE-0-2026-43503)
Vulnerability from cvelistv5 – Published: 2026-05-23 11:44 – Updated: 2026-07-03 12:05
VLAI
EPSS
Title
net: skbuff: propagate shared-frag marker through frag-transfer helpers
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: skbuff: propagate shared-frag marker through frag-transfer helpers
Two frag-transfer helpers (__pskb_copy_fclone() and skb_shift()) fail
to propagate the SKBFL_SHARED_FRAG bit in skb_shinfo()->flags when
moving frags from source to destination. __pskb_copy_fclone() defers
the rest of the shinfo metadata to skb_copy_header() after copying
frag descriptors, but that helper only carries over gso_{size,segs,
type} and never touches skb_shinfo()->flags; skb_shift() moves frag
descriptors directly and leaves flags untouched. As a result, the
destination skb keeps a reference to the same externally-owned or
page-cache-backed pages while reporting skb_has_shared_frag() as
false.
The mismatch is harmful in any in-place writer that uses
skb_has_shared_frag() to decide whether shared pages must be detoured
through skb_cow_data(). ESP input is one such writer (esp4.c,
esp6.c), and a single nft 'dup to <local>' rule -- or any other
nf_dup_ipv4() / xt_TEE caller -- is enough to land a pskb_copy()'d
skb in esp_input() with the marker stripped, letting an unprivileged
user write into the page cache of a root-owned read-only file via
authencesn-ESN stray writes.
Set SKBFL_SHARED_FRAG on the destination whenever frag descriptors
were actually moved from the source. skb_copy() and skb_copy_expand()
share skb_copy_header() too but linearize all paged data into freshly
allocated head storage and emerge with nr_frags == 0, so
skb_has_shared_frag() returns false on its own; they need no change.
The same omission exists in skb_gro_receive() and skb_gro_receive_list().
The former moves the incoming skb's frag descriptors into the
accumulator's last sub-skb via two paths (a direct frag-move loop and
the head_frag + memcpy path); the latter chains the incoming skb whole
onto p's frag_list. Downstream skb_segment() reads only
skb_shinfo(p)->flags, and skb_segment_list() reuses each sub-skb's
shinfo as the nskb -- both p and lp must carry the marker.
The same omission also exists in tcp_clone_payload(), which builds an
MTU probe skb by moving frag descriptors from skbs on sk_write_queue
into a freshly allocated nskb. The helper falls into the same family
and warrants the same fix for consistency; no TCP TX-side in-place
writer is currently known to reach a user page through this gap, but
a future consumer depending on the marker would regress silently.
The same omission exists in skb_segment(): the per-iteration flag
merge takes only head_skb's flag, and the inner switch that rebinds
frag_skb to list_skb on head_skb-frags exhaustion does not fold the
new frag_skb's flag into nskb. Fold frag_skb's flag at both sites
so segments drawing frags from frag_list members carry the marker.
Severity
CWE
- CWE-664 - Improper Control of a Resource Through its Lifetime
Assigner
References
41 references
Impacted products
59 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < fbeab9555564a1b98e8582cd106dfe46c4606991
(git)
Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 179f1852bdedc300e373e807cc102cd81feff196 (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 12401fcfb01f53ccc63ab0a3246570fe8f3105ee (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 989214c66884d70716d83dc1d0bf5e16287bf349 (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < fc6eb39c55e97df2f94ad974b8a5bbcd019da2c8 (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < ff375cc75f9167168db38e0464a482d5fbc8d81d (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 9bc9d6d6967a2239aa57af2aa53554eddd640d20 (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 48f6a5356a33dd78e7144ae1faef95ffc990aae0 (git) |
|
| Linux | Linux |
Affected:
3.9
Unaffected: 0 , < 3.9 (semver) Unaffected: 5.10.257 , ≤ 5.10.* (semver) Unaffected: 5.15.208 , ≤ 5.15.* (semver) Unaffected: 6.1.174 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
|
| Red Hat | NVIDIA for RHEL 10 |
cpe:/a:redhat:enterprise_linux_nvidia:10::el10 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.12 |
cpe:/a:redhat:openshift:4.12::el8 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.13 |
cpe:/a:redhat:openshift:4.13::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.15 |
cpe:/a:redhat:openshift:4.15::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.16 |
cpe:/a:redhat:openshift:4.16::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.18 |
cpe:/a:redhat:openshift:4.18::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.19 |
cpe:/a:redhat:openshift:4.19::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.20 |
cpe:/a:redhat:openshift:4.20::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.21 |
cpe:/a:redhat:openshift:4.21::el9 |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 9) |
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux BaseOS (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux BaseOS (v. 8) |
cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS AUS (v.8.4) |
cpe:/o:redhat:rhel_aus:8.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) |
cpe:/o:redhat:rhel_eus_long_life:8.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS AUS (v.8.6) |
cpe:/o:redhat:rhel_aus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.8.6) |
cpe:/o:redhat:rhel_e4s:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS TUS (v.8.6) |
cpe:/o:redhat:rhel_tus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.8.8) |
cpe:/o:redhat:rhel_e4s:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS TUS (v.8.8) |
cpe:/o:redhat:rhel_tus:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.0) |
cpe:/o:redhat:rhel_e4s:9.0::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.2) |
cpe:/o:redhat:rhel_e4s:9.2::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.4) |
cpe:/o:redhat:rhel_e4s:9.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v.9.4) |
cpe:/o:redhat:rhel_eus:9.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v.9.6) |
cpe:/o:redhat:rhel_eus:9.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS (v. 9) |
cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux CRB (v. 8) |
cpe:/a:redhat:enterprise_linux:8::crb |
|
| Red Hat | Red Hat CodeReady Linux Builder EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::crb |
|
| Red Hat | Red Hat CodeReady Linux Builder EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::crb |
|
| Red Hat | Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) |
cpe:/a:redhat:enterprise_linux:9::crb |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux NFV (v. 8) |
cpe:/a:redhat:enterprise_linux:8::nfv |
|
| Red Hat | Red Hat Enterprise Linux NFV E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV (v. 9) |
cpe:/a:redhat:enterprise_linux:9::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux Real Time (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux RT (v. 8) |
cpe:/a:redhat:enterprise_linux:8::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time (v. 9) |
cpe:/a:redhat:enterprise_linux:9::realtime |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4 |
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:/a:redhat:enterprise_linux_nvidia:10::el10"
],
"defaultStatus": "affected",
"product": "NVIDIA for RHEL 10",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.12::el8"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift Container Platform 4.12",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.13::el9"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift Container Platform 4.13",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.15::el9"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift Container Platform 4.15",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.16::el9"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift Container Platform 4.16",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.18::el9"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift Container Platform 4.18",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.19::el9"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift Container Platform 4.19",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.20::el9"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift Container Platform 4.20",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.21::el9"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift Container Platform 4.21",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS (v. 10.0)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.0::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream E4S (v.9.0)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream E4S (v.9.2)",
"vendor": "Red Hat"
},
{
"cpes": [
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],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS (v.9.4)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS (v.9.6)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 9)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS EUS (v. 10.0)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS (v. 10)",
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},
{
"cpes": [
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],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS (v. 8)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:rhel_aus:8.4::baseos"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS AUS (v.8.4)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"
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"defaultStatus": "affected",
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{
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{
"cpes": [
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},
{
"cpes": [
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},
{
"cpes": [
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{
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{
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"datePublic": "2026-05-23T00:00:00.000Z",
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"value": "A flaw was found in the Linux kernel\u0027s networking (skbuff) component. When skb_try_coalesce() attaches paged fragments, it can lose the SKBFL_SHARED_FRAG marker. This can lead to the Encapsulating Security Payload (ESP) input decrypting data in place over page-cache backed fragments, potentially resulting in data corruption."
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CVE-2026-46300 (GCVE-0-2026-46300)
Vulnerability from cvelistv5 – Published: 2026-05-23 11:44 – Updated: 2026-07-02 12:05
VLAI
EPSS
Title
net: skbuff: preserve shared-frag marker during coalescing
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: skbuff: preserve shared-frag marker during coalescing
skb_try_coalesce() can attach paged frags from @from to @to. If @from
has SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same
externally-owned or page-cache-backed frags, but the shared-frag marker
is currently lost.
That breaks the invariant relied on by later in-place writers. In
particular, ESP input checks skb_has_shared_frag() before deciding
whether an uncloned nonlinear skb can skip skb_cow_data(). If TCP
receive coalescing has moved shared frags into an unmarked skb, ESP can
see skb_has_shared_frag() as false and decrypt in place over page-cache
backed frags.
Propagate SKBFL_SHARED_FRAG when skb_try_coalesce() transfers paged
frags. The tailroom copy path does not need the marker because it copies
bytes into @to's linear data rather than transferring frag descriptors.
Severity
7.8 (High)
CWE
- CWE-123 - Write-what-where Condition
Assigner
References
47 references
Impacted products
59 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 3599e6b3cc1ada96883d496a50a210d3afbb6987
(git)
Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 2f2b16022a2e10ca7bccfb98db5ed2ec0f72641c (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 9d3e5fd19fe1063bf607219e8562fbd567b8e8d5 (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 78bf6b6bb19541d19fbda6242e7cfe2c682763c0 (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 760e1addc27ba1a7beb4a0a7e8b3e9ec49e7a34e (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 3bd9e113d50034db99d7ef69fd8e5242d15e414a (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < 3884358a9286b17f389a72b1426fc4547c23c111 (git) Affected: cef401de7be8c4e155c6746bfccf721a4fa5fab9 , < f84eca5817390257cef78013d0112481c503b4a3 (git) |
|
| Linux | Linux |
Affected:
3.9
Unaffected: 0 , < 3.9 (semver) Unaffected: 5.10.257 , ≤ 5.10.* (semver) Unaffected: 5.15.208 , ≤ 5.15.* (semver) Unaffected: 6.1.174 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
|
| Red Hat | NVIDIA for RHEL 10 |
cpe:/a:redhat:enterprise_linux_nvidia:10::el10 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.21 |
cpe:/a:redhat:openshift:4.21::el10 cpe:/a:redhat:openshift:4.21::el8 cpe:/a:redhat:openshift:4.21::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.12 |
cpe:/a:redhat:openshift:4.12::el8 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.13 |
cpe:/a:redhat:openshift:4.13::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.14 |
cpe:/a:redhat:openshift:4.14::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.15 |
cpe:/a:redhat:openshift:4.15::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.16 |
cpe:/a:redhat:openshift:4.16::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.18 |
cpe:/a:redhat:openshift:4.18::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.19 |
cpe:/a:redhat:openshift:4.19::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.20 |
cpe:/a:redhat:openshift:4.20::el9 |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 9) |
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux BaseOS (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux BaseOS (v. 8) |
cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS AUS (v.8.4) |
cpe:/o:redhat:rhel_aus:8.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) |
cpe:/o:redhat:rhel_eus_long_life:8.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS AUS (v.8.6) |
cpe:/o:redhat:rhel_aus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.8.6) |
cpe:/o:redhat:rhel_e4s:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS TUS (v.8.6) |
cpe:/o:redhat:rhel_tus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.8.8) |
cpe:/o:redhat:rhel_e4s:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS TUS (v.8.8) |
cpe:/o:redhat:rhel_tus:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.0) |
cpe:/o:redhat:rhel_e4s:9.0::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.2) |
cpe:/o:redhat:rhel_e4s:9.2::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.4) |
cpe:/o:redhat:rhel_e4s:9.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v.9.4) |
cpe:/o:redhat:rhel_eus:9.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v.9.6) |
cpe:/o:redhat:rhel_eus:9.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS (v. 9) |
cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux CRB (v. 8) |
cpe:/a:redhat:enterprise_linux:8::crb |
|
| Red Hat | Red Hat CodeReady Linux Builder EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::crb |
|
| Red Hat | Red Hat CodeReady Linux Builder EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::crb |
|
| Red Hat | Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) |
cpe:/a:redhat:enterprise_linux:9::crb |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux NFV (v. 8) |
cpe:/a:redhat:enterprise_linux:8::nfv |
|
| Red Hat | Red Hat Enterprise Linux NFV E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV (v. 9) |
cpe:/a:redhat:enterprise_linux:9::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux Real Time (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux RT (v. 8) |
cpe:/a:redhat:enterprise_linux:8::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time (v. 9) |
cpe:/a:redhat:enterprise_linux:9::realtime |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
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CVE-2026-46323 (GCVE-0-2026-46323)
Vulnerability from cvelistv5 – Published: 2026-06-09 12:11 – Updated: 2026-06-30 12:10
VLAI
EPSS
Title
net: gro: don't merge zcopy skbs
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: gro: don't merge zcopy skbs
skb_gro_receive() can currently copy frags between the source and GRO
skb, without checking the zerocopy status, and in particular the
SKBFL_MANAGED_FRAG_REFS flag.
When SKBFL_MANAGED_FRAG_REFS is set, the skb doesn't hold a reference
on the pages in shinfo->frags. Appending those frags to another skb's
frags without fixing up the page refcount can lead to UAF.
When either the last skb in the GRO chain (the one we would append
frags to) or the source skb is zerocopy, don't merge the skbs.
Severity
7.8 (High)
CWE
- CWE-123 - Write-what-where Condition
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/3c6cc9f2ca65b6dd6… | |
| https://git.kernel.org/stable/c/1f9c828556416fbe3… | |
| https://git.kernel.org/stable/c/479084ae0e1d9cb79… | |
| https://git.kernel.org/stable/c/e334cbf3388fd9334… | |
| https://git.kernel.org/stable/c/44bea2032af0425e4… | |
| https://git.kernel.org/stable/c/4db79a322db8c97f7… | |
| https://access.redhat.com/security/cve/CVE-2026-46323 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2479832 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:27731 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:27735 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:27708 | vendor-advisoryx_refsource_REDHAT |
Impacted products
23 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
753f1ca4e1e50248a1b760c9774d6d6b354562cc , < 3c6cc9f2ca65b6dd61b1af75452dc0e1cd0aad8d
(git)
Affected: 753f1ca4e1e50248a1b760c9774d6d6b354562cc , < 1f9c828556416fbe3f49386708ce999fc4d4da06 (git) Affected: 753f1ca4e1e50248a1b760c9774d6d6b354562cc , < 479084ae0e1d9cb7929cb4298d35623de189f80a (git) Affected: 753f1ca4e1e50248a1b760c9774d6d6b354562cc , < e334cbf3388fd9334503a778a82d9e9f14dd2f71 (git) Affected: 753f1ca4e1e50248a1b760c9774d6d6b354562cc , < 44bea2032af0425e4ce6d26a8af0ede79db49ec1 (git) Affected: 753f1ca4e1e50248a1b760c9774d6d6b354562cc , < 4db79a322db8c97f7b73b8a347395ef4d685eb40 (git) |
|
| Linux | Linux |
Affected:
6.0
Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.142 , ≤ 6.6.* (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.4) |
cpe:/a:redhat:rhel_e4s:9.4::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
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CVE-2026-46333 (GCVE-0-2026-46333)
Vulnerability from cvelistv5 – Published: 2026-05-15 12:58 – Updated: 2026-07-01 12:05
VLAI
EPSS
Title
ptrace: slightly saner 'get_dumpable()' logic
Summary
In the Linux kernel, the following vulnerability has been resolved:
ptrace: slightly saner 'get_dumpable()' logic
The 'dumpability' of a task is fundamentally about the memory image of
the task - the concept comes from whether it can core dump or not - and
makes no sense when you don't have an associated mm.
And almost all users do in fact use it only for the case where the task
has a mm pointer.
But we have one odd special case: ptrace_may_access() uses 'dumpable' to
check various other things entirely independently of the MM (typically
explicitly using flags like PTRACE_MODE_READ_FSCREDS). Including for
threads that no longer have a VM (and maybe never did, like most kernel
threads).
It's not what this flag was designed for, but it is what it is.
The ptrace code does check that the uid/gid matches, so you do have to
be uid-0 to see kernel thread details, but this means that the
traditional "drop capabilities" model doesn't make any difference for
this all.
Make it all make a *bit* more sense by saying that if you don't have a
MM pointer, we'll use a cached "last dumpability" flag if the thread
ever had a MM (it will be zero for kernel threads since it is never
set), and require a proper CAP_SYS_PTRACE capability to override.
Severity
7.1 (High)
7.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
40 references
Impacted products
52 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 , < 93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6
(git)
Affected: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 , < 15b828a46f305ae9f05a7c16914b3ce273474205 (git) Affected: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 , < 4709234fd1b95136ceb789f639b1e7ea5de1b181 (git) Affected: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 , < 8f907d345bae8f4b3f004c5abc56bf2dfb851ea7 (git) Affected: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 , < 6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d (git) Affected: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 , < 2a93a4fac7b6051d3be7cd1b015fe7320cd0404d (git) Affected: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 , < 01363cb3fbd0238ffdeb09f53e9039c9edf8a730 (git) Affected: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 , < 31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a (git) Affected: d5b3e840dbf6dd2c0f30b5982b6f5ecd49e46b12 (git) Affected: 03eed7afbc09e061f66b448daf7863174c3dc3f3 (git) Affected: e45692fa1aea06676449b63ef3c2b6e1e72b7578 (git) Affected: 694a95fa6dae4991f16cda333d897ea063021fed (git) Affected: 3.16.52 , < 3.17 (semver) Affected: 4.4.40 , < 4.5 (semver) Affected: 4.8.16 , < 4.9 (semver) Affected: 4.9.1 , < 4.10 (semver) |
|
| Linux | Linux |
Affected:
4.10
Unaffected: 0 , < 4.10 (semver) Unaffected: 5.10.256 , ≤ 5.10.* (semver) Unaffected: 5.15.207 , ≤ 5.15.* (semver) Unaffected: 6.1.173 , ≤ 6.1.* (semver) Unaffected: 6.6.139 , ≤ 6.6.* (semver) Unaffected: 6.12.89 , ≤ 6.12.* (semver) Unaffected: 6.18.31 , ≤ 6.18.* (semver) Unaffected: 7.0.8 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
|
| Red Hat | NVIDIA for RHEL 10 |
cpe:/a:redhat:enterprise_linux_nvidia:10::el10 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.20 |
cpe:/a:redhat:openshift:4.20::el8 cpe:/a:redhat:openshift:4.20::el9 |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 9) |
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux BaseOS (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
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|
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|
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cpe:/o:redhat:rhel_aus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.8.6) |
cpe:/o:redhat:rhel_e4s:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS TUS (v.8.6) |
cpe:/o:redhat:rhel_tus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.8.8) |
cpe:/o:redhat:rhel_e4s:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS TUS (v.8.8) |
cpe:/o:redhat:rhel_tus:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.0) |
cpe:/o:redhat:rhel_e4s:9.0::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.2) |
cpe:/o:redhat:rhel_e4s:9.2::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS E4S (v.9.4) |
cpe:/o:redhat:rhel_e4s:9.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux BaseOS EUS (v.9.4) |
cpe:/o:redhat:rhel_eus:9.4::baseos |
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cpe:/o:redhat:rhel_eus:9.6::baseos |
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| Red Hat | Red Hat Enterprise Linux BaseOS (v. 9) |
cpe:/o:redhat:enterprise_linux:9::baseos |
|
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cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
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cpe:/o:redhat:enterprise_linux:10.2 |
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cpe:/a:redhat:rhel_eus:9.4::crb |
|
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cpe:/a:redhat:rhel_eus:9.6::crb |
|
| Red Hat | Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) |
cpe:/a:redhat:enterprise_linux:9::crb |
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| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
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| Red Hat | Red Hat Enterprise Linux Real Time for NFV (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux NFV (v. 8) |
cpe:/a:redhat:enterprise_linux:8::nfv |
|
| Red Hat | Red Hat Enterprise Linux NFV E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time for NFV (v. 9) |
cpe:/a:redhat:enterprise_linux:9::nfv |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux Real Time (v. 10) |
cpe:/o:redhat:enterprise_linux:10.2 |
|
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cpe:/a:redhat:enterprise_linux:8::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::realtime |
|
| Red Hat | Red Hat Enterprise Linux Real Time (v. 9) |
cpe:/a:redhat:enterprise_linux:9::realtime |
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
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{
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"value": "RHSA-2026:19568: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9)"
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{
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"value": "RHSA-2026:23470: Red Hat Enterprise Linux BaseOS (v. 8)"
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"value": "RHSA-2026:20130: Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)"
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{
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},
{
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"value": "RHSA-2026:24814: Red Hat Enterprise Linux BaseOS E4S (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:23468: Red Hat Enterprise Linux BaseOS EUS (v.9.6)"
},
{
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"value": "RHSA-2026:19664: Red Hat Enterprise Linux NFV (v. 8), Red Hat Enterprise Linux RT (v. 8)"
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"value": "RHSA-2026:19711: Red Hat Enterprise Linux NFV E4S (v.9.0), Red Hat Enterprise Linux Real Time E4S (v.9.0)"
},
{
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"value": "RHSA-2026:19875: Red Hat Enterprise Linux Real Time E4S (v.9.2), Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)"
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"time": "2026-05-15T08:27:21.590Z",
"value": "Reported to Red Hat."
},
{
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"time": "2026-05-15T05:55:00.000Z",
"value": "Made public."
}
],
"title": "kernel: Read root-owned files as an unprivileged user",
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"dateUpdated": "2026-07-01T12:05:06.860Z",
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}
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Trend slope:
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(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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