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ALSA-2025:15785 (CVE-2023-53125)
Vulnerability from osv_almalinux – Published: 2025-09-15 00:00 – Updated: 2026-10-29 08:26 – Source websiteThe kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
- kernel: net: usb: smsc75xx: Limit packet length to skb->len (CVE-2023-53125)
- kernel: net/sched: Always pass notifications when child class becomes empty (CVE-2025-38350)
- kernel: idpf: convert control queue mutex to a spinlock (CVE-2025-38392)
- kernel: drm/gem: Acquire references on GEM handles for framebuffers (CVE-2025-38449)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
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"details": "The kernel packages contain the Linux kernel, the core of any Linux operating system. \n\nSecurity Fix(es): \n\n * kernel: net: usb: smsc75xx: Limit packet length to skb-\u003elen (CVE-2023-53125)\n * kernel: net/sched: Always pass notifications when child class becomes empty (CVE-2025-38350)\n * kernel: idpf: convert control queue mutex to a spinlock (CVE-2025-38392)\n * kernel: drm/gem: Acquire references on GEM handles for framebuffers (CVE-2025-38449)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2025:15785",
"modified": "2026-10-29T08:26:01Z",
"published": "2025-09-15T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2025:15785"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-53125"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-38350"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-38392"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-38449"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2363686"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2382054"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2383407"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2383519"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/8/ALSA-2025-15785.html"
},
{
"type": "REPORT",
"url": "https://www.redhat.com/security/data/cve/CVE-2025-38684.html"
}
],
"related": [
"CVE-2023-53125",
"CVE-2025-38350",
"CVE-2025-38392",
"CVE-2025-38449",
"CVE-2025-38684"
],
"schema_version": "1.7.0",
"summary": "Important: kernel security update",
"upstream": [
"CVE-2023-53125",
"CVE-2025-38350",
"CVE-2025-38392",
"CVE-2025-38449",
"CVE-2025-38684"
]
}
CVE-2023-53125 (GCVE-0-2023-53125)
Vulnerability from cvelistv5 – Published: 2025-05-02 15:56 – Updated: 2026-05-11 19:38| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/4a4de0a68b18485c6… | |
| https://git.kernel.org/stable/c/53966d572d056d6b2… | |
| https://git.kernel.org/stable/c/9fabdd79051a9fe51… | |
| https://git.kernel.org/stable/c/e294f0aa47e4844f3… | |
| https://git.kernel.org/stable/c/105db6574281e1e03… | |
| https://git.kernel.org/stable/c/c7bdc137ca163b909… | |
| https://git.kernel.org/stable/c/8ee5df9c039e37b9d… | |
| https://git.kernel.org/stable/c/d8b228318935044da… |
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
d0cad871703b898a442e4049c532ec39168e5b57 , < 4a4de0a68b18485c68ab4f0cfa665b1633c6d277
(git)
Affected: d0cad871703b898a442e4049c532ec39168e5b57 , < 53966d572d056d6b234cfe76a5f9d60049d3c178 (git) Affected: d0cad871703b898a442e4049c532ec39168e5b57 , < 9fabdd79051a9fe51388df099aff6e4b660fedd2 (git) Affected: d0cad871703b898a442e4049c532ec39168e5b57 , < e294f0aa47e4844f3d3c8766c02accd5a76a7d4e (git) Affected: d0cad871703b898a442e4049c532ec39168e5b57 , < 105db6574281e1e03fcbf87983f4fee111682306 (git) Affected: d0cad871703b898a442e4049c532ec39168e5b57 , < c7bdc137ca163b90917c1eeba4f1937684bd4f8b (git) Affected: d0cad871703b898a442e4049c532ec39168e5b57 , < 8ee5df9c039e37b9d8eb5e3de08bfb7f53d31cb6 (git) Affected: d0cad871703b898a442e4049c532ec39168e5b57 , < d8b228318935044dafe3a5bc07ee71a1f1424b8d (git) |
|
| Linux | Linux |
Affected:
2.6.34
Unaffected: 0 , < 2.6.34 (semver) Unaffected: 4.14.311 , ≤ 4.14.* (semver) Unaffected: 4.19.279 , ≤ 4.19.* (semver) Unaffected: 5.4.238 , ≤ 5.4.* (semver) Unaffected: 5.10.176 , ≤ 5.10.* (semver) Unaffected: 5.15.104 , ≤ 5.15.* (semver) Unaffected: 6.1.21 , ≤ 6.1.* (semver) Unaffected: 6.2.8 , ≤ 6.2.* (semver) Unaffected: 6.3 , ≤ * (original_commit_for_fix) |
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"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: smsc75xx: Limit packet length to skb-\u003elen\n\nPacket length retrieved from skb data may be larger than\nthe actual socket buffer length (up to 9026 bytes). In such\ncase the cloned skb passed up the network stack will leak\nkernel memory contents."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:38:58.738Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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{
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{
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],
"title": "net: usb: smsc75xx: Limit packet length to skb-\u003elen",
"x_generator": {
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-53125",
"datePublished": "2025-05-02T15:56:01.140Z",
"dateReserved": "2025-05-02T15:51:43.555Z",
"dateUpdated": "2026-05-11T19:38:58.738Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-38350 (GCVE-0-2025-38350)
Vulnerability from cvelistv5 – Published: 2025-07-19 06:46 – Updated: 2026-10-15 01:07| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/3b290923ad2b23596… | |
| https://git.kernel.org/stable/c/e9921b57dca05ac5f… | |
| https://git.kernel.org/stable/c/e269f29e9395527bc… | |
| https://git.kernel.org/stable/c/7874c9c132e906a52… | |
| https://git.kernel.org/stable/c/f680a4643c6f71e75… | |
| https://git.kernel.org/stable/c/a553afd91f55ff39b… | |
| https://git.kernel.org/stable/c/a44acdd9e84a21198… | |
| https://git.kernel.org/stable/c/103406b38c600fec1… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://cert-portal.siemens.com/productcert/html/… | |
| https://cert-portal.siemens.com/productcert/html/… |
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1034e3310752e8675e313f7271b348914008719a , < 3b290923ad2b23596208c1e29520badef4356a43
(git)
Affected: f9f593e34d2fb67644372c8f7b033bdc622ad228 , < e9921b57dca05ac5f4fa1fa8e993d4f0ee52e2b7 (git) Affected: 89c301e929a0db14ebd94b4d97764ce1d6981653 , < e269f29e9395527bc00c213c6b15da04ebb35070 (git) Affected: f1dde3eb17dc1b8bd07aed00004b1e05fc87a3d4 , < 7874c9c132e906a52a187d045995b115973c93fb (git) Affected: 93c276942e75de0e5bc91576300d292e968f5a02 , < f680a4643c6f71e758d8fe0431a958e9a6a4f59d (git) Affected: 49b21795b8e5654a7df3d910a12e1060da4c04cf , < a553afd91f55ff39b1e8a1c4989a29394c9e0472 (git) Affected: 3f981138109f63232a5fb7165938d4c945cc1b9d , < a44acdd9e84a211989ff4b9b92bf3545d8456ad5 (git) Affected: 3f981138109f63232a5fb7165938d4c945cc1b9d , < 103406b38c600fec1fe375a77b27d87e314aea09 (git) Affected: 3f3a22eebbc32b4fa8ce9c1d5f9db214b45b9335 (git) Affected: 5.4.294 , < 5.4.296 (semver) Affected: 5.10.238 , < 5.10.240 (semver) Affected: 5.15.185 , < 5.15.187 (semver) Affected: 6.1.141 , < 6.1.144 (semver) Affected: 6.6.93 , < 6.6.97 (semver) Affected: 6.12.31 , < 6.12.37 (semver) Affected: 6.14.9 , < 6.15 (semver) |
|
| Linux | Linux |
Affected:
6.15
Unaffected: 0 , < 6.15 (semver) Unaffected: 5.4.296 , ≤ 5.4.* (semver) Unaffected: 5.10.240 , ≤ 5.10.* (semver) Unaffected: 5.15.187 , ≤ 5.15.* (semver) Unaffected: 6.1.144 , ≤ 6.1.* (semver) Unaffected: 6.6.97 , ≤ 6.6.* (semver) Unaffected: 6.12.37 , ≤ 6.12.* (semver) Unaffected: 6.15.6 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
|
| Siemens | RUGGEDCOM RST2428P |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XCH328 |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XCM324 |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XCM328 |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XCM332 |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRH334 (24 V DC, 8xFO, CC) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (230 V AC, 12xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (230 V AC, 8xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (24 V DC, 12xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (24 V DC, 8xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (2x230 V AC, 12xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (2x230 V AC, 8xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: Always pass notifications when child class becomes empty\n\nCertain classful qdiscs may invoke their classes\u0027 dequeue handler on an\nenqueue operation. This may unexpectedly empty the child qdisc and thus\nmake an in-flight class passive via qlen_notify(). Most qdiscs do not\nexpect such behaviour at this point in time and may re-activate the\nclass eventually anyways which will lead to a use-after-free.\n\nThe referenced fix commit attempted to fix this behavior for the HFSC\ncase by moving the backlog accounting around, though this turned out to\nbe incomplete since the parent\u0027s parent may run into the issue too.\nThe following reproducer demonstrates this use-after-free:\n\n tc qdisc add dev lo root handle 1: drr\n tc filter add dev lo parent 1: basic classid 1:1\n tc class add dev lo parent 1: classid 1:1 drr\n tc qdisc add dev lo parent 1:1 handle 2: hfsc def 1\n tc class add dev lo parent 2: classid 2:1 hfsc rt m1 8 d 1 m2 0\n tc qdisc add dev lo parent 2:1 handle 3: netem\n tc qdisc add dev lo parent 3:1 handle 4: blackhole\n\n echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888\n tc class delete dev lo classid 1:1\n echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888\n\nSince backlog accounting issues leading to a use-after-frees on stale\nclass pointers is a recurring pattern at this point, this patch takes\na different approach. Instead of trying to fix the accounting, the patch\nensures that qdisc_tree_reduce_backlog always calls qlen_notify when\nthe child qdisc is empty. This solves the problem because deletion of\nqdiscs always involves a call to qdisc_reset() and / or\nqdisc_purge_queue() which ultimately resets its qlen to 0 thus causing\nthe following qdisc_tree_reduce_backlog() to report to the parent. Note\nthat this may call qlen_notify on passive classes multiple times. This\nis not a problem after the recent patch series that made all the\nclassful qdiscs qlen_notify() handlers idempotent."
}
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"value": "AV:L - Exploitation requires configuring the qdisc/class hierarchy and deleting a class via local rtnetlink (RTM_NEWQDISC/RTM_DELTCLASS) syscalls, and the triggering packet is generated locally on `lo`. Per kernel guidance, tc/netlink qdisc bugs are Local.\nAC:L - The published reproducer is a deterministic sequence of seven `tc` commands plus two UDP datagrams \u2014 no race, no timing window, and no memory-layout condition outside the attacker\u0027s control. The attacker fully controls the qdisc tree shape that creates the stale class pointer.\nPR:L - The rtnetlink path requires CAP_NET_ADMIN, but `netlink_net_capable()` evaluates it against the network namespace\u0027s owning user namespace, so any unprivileged user with `unshare -Urn` gains it and the whole reproducer works on `lo` inside that namespace.\nUI:N - The attacker performs every step \u2014 qdisc setup, class deletion, and sending the triggering packet to loopback \u2014 with no action by any other user or victim process.\nS:U - The freed `drr_class` and the corrupted active list live in kernel heap within the same security authority; this is a standard local kernel privilege-escalation primitive with no VM, IOMMU, or sandbox boundary crossed.\nC:H - The use-after-free lets the attacker reclaim the freed `drr_class` with sprayed data and have the kernel dereference `cl-\u003eqdisc` and `cl-\u003eqdisc-\u003eops` from it, yielding an arbitrary kernel-memory read primitive and full disclosure of kernel memory.\nI:H - The stale class is both written through (`list_add_tail`/`list_del_init` on `cl-\u003ealist`, `cl-\u003edeficit`) and used for an indirect call via `cl-\u003eqdisc-\u003eops-\u003epeek()`, giving controlled writes and control-flow hijacking for arbitrary code execution.\nA:H - Even without weaponization the dangling list entry causes an immediate use-after-free oops/panic on the next enqueue or dequeue, and it can be triggered repeatedly to reliably crash the kernel."
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CVE-2025-38392 (GCVE-0-2025-38392)
Vulnerability from cvelistv5 – Published: 2025-07-25 12:53 – Updated: 2026-05-11 21:27| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
a251eee62133774cf35ff829041377e721ef9c8c , < 9a36715cd6bc6a6f16230e19a7f947bab34b3fe5
(git)
Affected: a251eee62133774cf35ff829041377e721ef9c8c , < dc6c3c2c9dfdaa3a3357f59a80a2904677a71a9a (git) Affected: a251eee62133774cf35ff829041377e721ef9c8c , < b2beb5bb2cd90d7939e470ed4da468683f41baa3 (git) |
|
| Linux | Linux |
Affected:
6.7
Unaffected: 0 , < 6.7 (semver) Unaffected: 6.12.37 , ≤ 6.12.* (semver) Unaffected: 6.15.6 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: convert control queue mutex to a spinlock\n\nWith VIRTCHNL2_CAP_MACFILTER enabled, the following warning is generated\non module load:\n\n[ 324.701677] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:578\n[ 324.701684] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1582, name: NetworkManager\n[ 324.701689] preempt_count: 201, expected: 0\n[ 324.701693] RCU nest depth: 0, expected: 0\n[ 324.701697] 2 locks held by NetworkManager/1582:\n[ 324.701702] #0: ffffffff9f7be770 (rtnl_mutex){....}-{3:3}, at: rtnl_newlink+0x791/0x21e0\n[ 324.701730] #1: ff1100216c380368 (_xmit_ETHER){....}-{2:2}, at: __dev_open+0x3f0/0x870\n[ 324.701749] Preemption disabled at:\n[ 324.701752] [\u003cffffffff9cd23b9d\u003e] __dev_open+0x3dd/0x870\n[ 324.701765] CPU: 30 UID: 0 PID: 1582 Comm: NetworkManager Not tainted 6.15.0-rc5+ #2 PREEMPT(voluntary)\n[ 324.701771] Hardware name: Intel Corporation M50FCP2SBSTD/M50FCP2SBSTD, BIOS SE5C741.86B.01.01.0001.2211140926 11/14/2022\n[ 324.701774] Call Trace:\n[ 324.701777] \u003cTASK\u003e\n[ 324.701779] dump_stack_lvl+0x5d/0x80\n[ 324.701788] ? __dev_open+0x3dd/0x870\n[ 324.701793] __might_resched.cold+0x1ef/0x23d\n\u003c..\u003e\n[ 324.701818] __mutex_lock+0x113/0x1b80\n\u003c..\u003e\n[ 324.701917] idpf_ctlq_clean_sq+0xad/0x4b0 [idpf]\n[ 324.701935] ? kasan_save_track+0x14/0x30\n[ 324.701941] idpf_mb_clean+0x143/0x380 [idpf]\n\u003c..\u003e\n[ 324.701991] idpf_send_mb_msg+0x111/0x720 [idpf]\n[ 324.702009] idpf_vc_xn_exec+0x4cc/0x990 [idpf]\n[ 324.702021] ? rcu_is_watching+0x12/0xc0\n[ 324.702035] idpf_add_del_mac_filters+0x3ed/0xb50 [idpf]\n\u003c..\u003e\n[ 324.702122] __hw_addr_sync_dev+0x1cf/0x300\n[ 324.702126] ? find_held_lock+0x32/0x90\n[ 324.702134] idpf_set_rx_mode+0x317/0x390 [idpf]\n[ 324.702152] __dev_open+0x3f8/0x870\n[ 324.702159] ? __pfx___dev_open+0x10/0x10\n[ 324.702174] __dev_change_flags+0x443/0x650\n\u003c..\u003e\n[ 324.702208] netif_change_flags+0x80/0x160\n[ 324.702218] do_setlink.isra.0+0x16a0/0x3960\n\u003c..\u003e\n[ 324.702349] rtnl_newlink+0x12fd/0x21e0\n\nThe sequence is as follows:\n\trtnl_newlink()-\u003e\n\t__dev_change_flags()-\u003e\n\t__dev_open()-\u003e\n\tdev_set_rx_mode() - \u003e # disables BH and grabs \"dev-\u003eaddr_list_lock\"\n\tidpf_set_rx_mode() -\u003e # proceed only if VIRTCHNL2_CAP_MACFILTER is ON\n\t__dev_uc_sync() -\u003e\n\tidpf_add_mac_filter -\u003e\n\tidpf_add_del_mac_filters -\u003e\n\tidpf_send_mb_msg() -\u003e\n\tidpf_mb_clean() -\u003e\n\tidpf_ctlq_clean_sq() # mutex_lock(cq_lock)\n\nFix by converting cq_lock to a spinlock. All operations under the new\nlock are safe except freeing the DMA memory, which may use vunmap(). Fix\nby requesting a contiguous physical memory for the DMA mapping."
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CVE-2025-38449 (GCVE-0-2025-38449)
Vulnerability from cvelistv5 – Published: 2025-07-25 15:27 – Updated: 2026-10-15 21:52| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
319c933c71f3dbdb2b3274d1634d3494c70efa06 , < cb4c956a15f8b7f870649454771fc3761f504b5f
(git)
Affected: 319c933c71f3dbdb2b3274d1634d3494c70efa06 , < 08480e285c6a82ce689008d643e4a51db0aaef8b (git) Affected: 319c933c71f3dbdb2b3274d1634d3494c70efa06 , < 3cf520d9860d4ec9f7f32068825da31f18dd3f25 (git) Affected: 319c933c71f3dbdb2b3274d1634d3494c70efa06 , < 5307dce878d4126e1b375587318955bd019c3741 (git) |
|
| Linux | Linux |
Affected:
3.12
Unaffected: 0 , < 3.12 (semver) Unaffected: 6.6.99 , ≤ 6.6.* (semver) Unaffected: 6.12.39 , ≤ 6.12.* (semver) Unaffected: 6.15.7 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gem: Acquire references on GEM handles for framebuffers\n\nA GEM handle can be released while the GEM buffer object is attached\nto a DRM framebuffer. This leads to the release of the dma-buf backing\nthe buffer object, if any. [1] Trying to use the framebuffer in further\nmode-setting operations leads to a segmentation fault. Most easily\nhappens with driver that use shadow planes for vmap-ing the dma-buf\nduring a page flip. An example is shown below.\n\n[ 156.791968] ------------[ cut here ]------------\n[ 156.796830] WARNING: CPU: 2 PID: 2255 at drivers/dma-buf/dma-buf.c:1527 dma_buf_vmap+0x224/0x430\n[...]\n[ 156.942028] RIP: 0010:dma_buf_vmap+0x224/0x430\n[ 157.043420] Call Trace:\n[ 157.045898] \u003cTASK\u003e\n[ 157.048030] ? show_trace_log_lvl+0x1af/0x2c0\n[ 157.052436] ? show_trace_log_lvl+0x1af/0x2c0\n[ 157.056836] ? show_trace_log_lvl+0x1af/0x2c0\n[ 157.061253] ? drm_gem_shmem_vmap+0x74/0x710\n[ 157.065567] ? dma_buf_vmap+0x224/0x430\n[ 157.069446] ? __warn.cold+0x58/0xe4\n[ 157.073061] ? dma_buf_vmap+0x224/0x430\n[ 157.077111] ? report_bug+0x1dd/0x390\n[ 157.080842] ? handle_bug+0x5e/0xa0\n[ 157.084389] ? exc_invalid_op+0x14/0x50\n[ 157.088291] ? asm_exc_invalid_op+0x16/0x20\n[ 157.092548] ? dma_buf_vmap+0x224/0x430\n[ 157.096663] ? dma_resv_get_singleton+0x6d/0x230\n[ 157.101341] ? __pfx_dma_buf_vmap+0x10/0x10\n[ 157.105588] ? __pfx_dma_resv_get_singleton+0x10/0x10\n[ 157.110697] drm_gem_shmem_vmap+0x74/0x710\n[ 157.114866] drm_gem_vmap+0xa9/0x1b0\n[ 157.118763] drm_gem_vmap_unlocked+0x46/0xa0\n[ 157.123086] drm_gem_fb_vmap+0xab/0x300\n[ 157.126979] drm_atomic_helper_prepare_planes.part.0+0x487/0xb10\n[ 157.133032] ? lockdep_init_map_type+0x19d/0x880\n[ 157.137701] drm_atomic_helper_commit+0x13d/0x2e0\n[ 157.142671] ? drm_atomic_nonblocking_commit+0xa0/0x180\n[ 157.147988] drm_mode_atomic_ioctl+0x766/0xe40\n[...]\n[ 157.346424] ---[ end trace 0000000000000000 ]---\n\nAcquiring GEM handles for the framebuffer\u0027s GEM buffer objects prevents\nthis from happening. The framebuffer\u0027s cleanup later puts the handle\nreferences.\n\nCommit 1a148af06000 (\"drm/gem-shmem: Use dma_buf from GEM object\ninstance\") triggers the segmentation fault easily by using the dma-buf\nfield more widely. The underlying issue with reference counting has\nbeen present before.\n\nv2:\n- acquire the handle instead of the BO (Christian)\n- fix comment style (Christian)\n- drop the Fixes tag (Christian)\n- rename err_ gotos\n- add missing Link tag"
}
],
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
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"lang": "en",
"value": "AV:L - The vulnerability is triggered purely through DRM ioctls (PRIME_FD_TO_HANDLE, ADDFB2, GEM_CLOSE, MODE_ATOMIC/PAGE_FLIP) on a local device node /dev/dri/card*. There is no network or remote-peer data path into drm_gem_fb_init_with_funcs() or drm_gem_object_handle_put_unlocked().\nAC:L - The attacker performs the entire sequence themselves \u2014 import a dma-buf, create a framebuffer, close the GEM handle, then commit the framebuffer \u2014 and the resulting release of the still-referenced dma-buf is deterministic, with no race or memory-layout condition outside the attacker\u0027s control. Where a window is involved (begin_fb_access in prepare_planes vs. end_fb_access in cleanup_planes), the attacker drives both sides from their own threads.\nPR:L - Only an unprivileged local account with access to a DRM primary node is needed (video group, active-seat ACL, Android graphics group); ADDFB2/RMFB/GEM_CLOSE require no master or auth flags at all. DRM master, needed for the atomic commit, is handed out by drm_master_open() to the first opener of the node with no capability check, and is also available via DRM leases \u2014 no real root is required.\nUI:N - A single attacker-controlled process performs every step \u2014 buffer import, framebuffer creation, handle close, and the mode-setting commit. No victim action or cooperating process is involved.\nS:U - The premature release and subsequent misuse of the GEM object\u0027s dma-buf occur entirely within the kernel\u0027s own security authority on the same host. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - This is a reference-counting/lifetime defect that releases the dma-buf backing a framebuffer that remains live and in active use by plane state, the scanout engine and shadow-plane kernel mappings \u2014 a use-after-free-class flaw. Such premature release of a GEM/dma-buf backing store, with attacker-controlled heap grooming via DUMB_CREATE and repeated import/close cycles, is leverageable into disclosure of reallocated kernel memory contents.\nI:H - The same missing handle reference lets the kernel continue writing through stale framebuffer state (shadow-plane blits, damage handling) into storage whose backing reference has been dropped, and the unguarded dma_buf_end_cpu_access() path performs an indirect call through dmabuf-\u003eops on a released/invalid dma_buf. This gives a memory-corruption and control-flow primitive rather than a benign failure.\nA:H - The documented result is a WARNING splat in dma_buf_vmap() (a panic on the widely deployed panic_on_warn configurations) and a kernel oops \u2014 dma_buf_end_cpu_access() only does WARN_ON(!dmabuf) without returning and then dereferences dmabuf-\u003eresv and dmabuf-\u003eops. Any local user with DRM access can trigger this repeatedly to crash the machine."
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CVE-2025-38684 (GCVE-0-2025-38684)
Vulnerability from cvelistv5 – Published: 2025-09-04 15:32 – Updated: 2026-05-23 16:00| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/bdfddcde86e8b9245… | |
| https://git.kernel.org/stable/c/be9692dafdfb36d9c… | |
| https://git.kernel.org/stable/c/97ec167cd2e8a81a2… | |
| https://git.kernel.org/stable/c/84a24fb446ee07b22… | |
| https://git.kernel.org/stable/c/5b3b346bc4c2aa2c4… | |
| https://git.kernel.org/stable/c/d69f4a258cd91b3bc… | |
| https://git.kernel.org/stable/c/970c1c731c4ede46d… | |
| https://git.kernel.org/stable/c/87c6efc5ce9c126ae… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://cert-portal.siemens.com/productcert/html/… |
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < bdfddcde86e8b9245d9c0c2efe2b6fe8dcf6bf41
(git)
Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < be9692dafdfb36d9c43afd9d4e1d9d9ba8e7b51b (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 97ec167cd2e8a81a2d87331a2ed92daf007542c8 (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 84a24fb446ee07b22b64aae6f0e3f4a38266310a (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 5b3b346bc4c2aa2c428735438a11989d251f32f1 (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < d69f4a258cd91b3bcef7089eb0401005aae2aed5 (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 970c1c731c4ede46d05f5b0355724d1e400cfbca (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 87c6efc5ce9c126ae4a781bc04504b83780e3650 (git) Affected: 3b290923ad2b23596208c1e29520badef4356a43 (git) Affected: 5.4.296 , < 5.5 (semver) |
|
| Linux | Linux |
Affected:
5.6
Unaffected: 0 , < 5.6 (semver) Unaffected: 5.10.241 , ≤ 5.10.* (semver) Unaffected: 5.15.190 , ≤ 5.15.* (semver) Unaffected: 6.1.149 , ≤ 6.1.* (semver) Unaffected: 6.6.103 , ≤ 6.6.* (semver) Unaffected: 6.12.43 , ≤ 6.12.* (semver) Unaffected: 6.15.11 , ≤ 6.15.* (semver) Unaffected: 6.16.2 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC CN 4100 |
Affected:
0 , < V5.0
(custom)
|
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: ets: use old \u0027nbands\u0027 while purging unused classes\n\nShuang reported sch_ets test-case [1] crashing in ets_class_qlen_notify()\nafter recent changes from Lion [2]. The problem is: in ets_qdisc_change()\nwe purge unused DWRR queues; the value of \u0027q-\u003enbands\u0027 is the new one, and\nthe cleanup should be done with the old one. The problem is here since my\nfirst attempts to fix ets_qdisc_change(), but it surfaced again after the\nrecent qdisc len accounting fixes. Fix it purging idle DWRR queues before\nassigning a new value of \u0027q-\u003enbands\u0027, so that all purge operations find a\nconsistent configuration:\n\n - old \u0027q-\u003enbands\u0027 because it\u0027s needed by ets_class_find()\n - old \u0027q-\u003enstrict\u0027 because it\u0027s needed by ets_class_is_strict()\n\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: Oops: 0000 [#1] SMP NOPTI\n CPU: 62 UID: 0 PID: 39457 Comm: tc Kdump: loaded Not tainted 6.12.0-116.el10.x86_64 #1 PREEMPT(voluntary)\n Hardware name: Dell Inc. PowerEdge R640/06DKY5, BIOS 2.12.2 07/09/2021\n RIP: 0010:__list_del_entry_valid_or_report+0x4/0x80\n Code: ff 4c 39 c7 0f 84 39 19 8e ff b8 01 00 00 00 c3 cc cc cc cc 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa \u003c48\u003e 8b 17 48 8b 4f 08 48 85 d2 0f 84 56 19 8e ff 48 85 c9 0f 84 ab\n RSP: 0018:ffffba186009f400 EFLAGS: 00010202\n RAX: 00000000000000d6 RBX: 0000000000000000 RCX: 0000000000000004\n RDX: ffff9f0fa29b69c0 RSI: 0000000000000000 RDI: 0000000000000000\n RBP: ffffffffc12c2400 R08: 0000000000000008 R09: 0000000000000004\n R10: ffffffffffffffff R11: 0000000000000004 R12: 0000000000000000\n R13: ffff9f0f8cfe0000 R14: 0000000000100005 R15: 0000000000000000\n FS: 00007f2154f37480(0000) GS:ffff9f269c1c0000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000000 CR3: 00000001530be001 CR4: 00000000007726f0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n PKRU: 55555554\n Call Trace:\n \u003cTASK\u003e\n ets_class_qlen_notify+0x65/0x90 [sch_ets]\n qdisc_tree_reduce_backlog+0x74/0x110\n ets_qdisc_change+0x630/0xa40 [sch_ets]\n __tc_modify_qdisc.constprop.0+0x216/0x7f0\n tc_modify_qdisc+0x7c/0x120\n rtnetlink_rcv_msg+0x145/0x3f0\n netlink_rcv_skb+0x53/0x100\n netlink_unicast+0x245/0x390\n netlink_sendmsg+0x21b/0x470\n ____sys_sendmsg+0x39d/0x3d0\n ___sys_sendmsg+0x9a/0xe0\n __sys_sendmsg+0x7a/0xd0\n do_syscall_64+0x7d/0x160\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n RIP: 0033:0x7f2155114084\n Code: 89 02 b8 ff ff ff ff eb bb 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 80 3d 25 f0 0c 00 00 74 13 b8 2e 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 54 c3 0f 1f 00 48 83 ec 28 89 54 24 1c 48 89\n RSP: 002b:00007fff1fd7a988 EFLAGS: 00000202 ORIG_RAX: 000000000000002e\n RAX: ffffffffffffffda RBX: 0000560ec063e5e0 RCX: 00007f2155114084\n RDX: 0000000000000000 RSI: 00007fff1fd7a9f0 RDI: 0000000000000003\n RBP: 00007fff1fd7aa60 R08: 0000000000000010 R09: 000000000000003f\n R10: 0000560ee9b3a010 R11: 0000000000000202 R12: 00007fff1fd7aae0\n R13: 000000006891ccde R14: 0000560ec063e5e0 R15: 00007fff1fd7aad0\n \u003c/TASK\u003e\n\n [1] https://lore.kernel.org/netdev/e08c7f4a6882f260011909a868311c6e9b54f3e4.1639153474.git.dcaratti@redhat.com/\n [2] https://lore.kernel.org/netdev/d912cbd7-193b-4269-9857-525bee8bbb6a@gmail.com/"
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.