CVE-2024-44987 (GCVE-0-2024-44987)
Vulnerability from cvelistv5 – Published: 2024-09-04 19:54 – Updated: 2026-08-05 11:37
VLAI
EPSS
VEX
Title
ipv6: prevent UAF in ip6_send_skb()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: prevent UAF in ip6_send_skb()
syzbot reported an UAF in ip6_send_skb() [1]
After ip6_local_out() has returned, we no longer can safely
dereference rt, unless we hold rcu_read_lock().
A similar issue has been fixed in commit
a688caa34beb ("ipv6: take rcu lock in rawv6_send_hdrinc()")
Another potential issue in ip6_finish_output2() is handled in a
separate patch.
[1]
BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964
Read of size 8 at addr ffff88806dde4858 by task syz.1.380/6530
CPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x169/0x550 mm/kasan/report.c:488
kasan_report+0x143/0x180 mm/kasan/report.c:601
ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964
rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588
rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x1a6/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
do_iter_readv_writev+0x60a/0x890
vfs_writev+0x37c/0xbb0 fs/read_write.c:971
do_writev+0x1b1/0x350 fs/read_write.c:1018
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f936bf79e79
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79
RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8
</TASK>
Allocated by task 6530:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:312 [inline]
__kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3988 [inline]
slab_alloc_node mm/slub.c:4037 [inline]
kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044
dst_alloc+0x12b/0x190 net/core/dst.c:89
ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670
make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]
xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313
ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257
rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x1a6/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
___sys_sendmsg net/socket.c:2651 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 45:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
__kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2252 [inline]
slab_free mm/slub.c:4473 [inline]
kmem_cache_free+0x145/0x350 mm/slub.c:4548
dst_destroy+0x2ac/0x460 net/core/dst.c:124
rcu_do_batch kernel/rcu/tree.c:2569 [inline]
rcu_core+0xafd/0x1830 kernel/rcu/tree.
---truncated---
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
13 references
Impacted products
9 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
0625491493d9000e4556bf566d205c28c8e7dc4e , < 571567e0277008459750f0728f246086b2659429
(git)
Affected: 0625491493d9000e4556bf566d205c28c8e7dc4e , < ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8 (git) Affected: 0625491493d9000e4556bf566d205c28c8e7dc4e , < cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e (git) Affected: 0625491493d9000e4556bf566d205c28c8e7dc4e , < 24e93695b1239fbe4c31e224372be77f82dab69a (git) Affected: 0625491493d9000e4556bf566d205c28c8e7dc4e , < 9a3e55afa95ed4ac9eda112d4f918af645d72f25 (git) Affected: 0625491493d9000e4556bf566d205c28c8e7dc4e , < af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011 (git) Affected: 0625491493d9000e4556bf566d205c28c8e7dc4e , < e44bd76dd072756e674f45c5be00153f4ded68b2 (git) Affected: 0625491493d9000e4556bf566d205c28c8e7dc4e , < faa389b2fbaaec7fd27a390b4896139f9da662e3 (git) |
|
| Linux | Linux |
Affected:
2.6.32
Unaffected: 0 , < 2.6.32 (semver) Unaffected: 4.19.321 , ≤ 4.19.* (semver) Unaffected: 5.4.283 , ≤ 5.4.* (semver) Unaffected: 5.10.225 , ≤ 5.10.* (semver) Unaffected: 5.15.166 , ≤ 5.15.* (semver) Unaffected: 6.1.107 , ≤ 6.1.* (semver) Unaffected: 6.6.48 , ≤ 6.6.* (semver) Unaffected: 6.10.7 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
|
| Siemens | RUGGEDCOM RST2428P |
Affected:
0 , < V3.2
(custom)
|
|
| Siemens | RUGGEDCOM RST2428P |
Affected:
0 , < V3.1
(custom)
|
|
| Siemens | SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family |
Affected:
0 , < V3.2
(custom)
|
|
| Siemens | SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | SCALANCE XCM-/XRM-/XCH-/XRH-300 family |
Affected:
0 , < V3.2
(custom)
|
|
| Siemens | SCALANCE XCM-/XRM-/XCH-/XRH-300 family |
Affected:
0 , < V3.1
(custom)
|
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: prevent UAF in ip6_send_skb()\n\nsyzbot reported an UAF in ip6_send_skb() [1]\n\nAfter ip6_local_out() has returned, we no longer can safely\ndereference rt, unless we hold rcu_read_lock().\n\nA similar issue has been fixed in commit\na688caa34beb (\"ipv6: take rcu lock in rawv6_send_hdrinc()\")\n\nAnother potential issue in ip6_finish_output2() is handled in a\nseparate patch.\n\n[1]\n BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964\nRead of size 8 at addr ffff88806dde4858 by task syz.1.380/6530\n\nCPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:93 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\n kasan_report+0x143/0x180 mm/kasan/report.c:601\n ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964\n rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588\n rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x1a6/0x270 net/socket.c:745\n sock_write_iter+0x2dd/0x400 net/socket.c:1160\n do_iter_readv_writev+0x60a/0x890\n vfs_writev+0x37c/0xbb0 fs/read_write.c:971\n do_writev+0x1b1/0x350 fs/read_write.c:1018\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f936bf79e79\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014\nRAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79\nRDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004\nRBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8\n \u003c/TASK\u003e\n\nAllocated by task 6530:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n unpoison_slab_object mm/kasan/common.c:312 [inline]\n __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338\n kasan_slab_alloc include/linux/kasan.h:201 [inline]\n slab_post_alloc_hook mm/slub.c:3988 [inline]\n slab_alloc_node mm/slub.c:4037 [inline]\n kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044\n dst_alloc+0x12b/0x190 net/core/dst.c:89\n ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670\n make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]\n xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313\n ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257\n rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x1a6/0x270 net/socket.c:745\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597\n ___sys_sendmsg net/socket.c:2651 [inline]\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 45:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579\n poison_slab_object+0xe0/0x150 mm/kasan/common.c:240\n __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256\n kasan_slab_free include/linux/kasan.h:184 [inline]\n slab_free_hook mm/slub.c:2252 [inline]\n slab_free mm/slub.c:4473 [inline]\n kmem_cache_free+0x145/0x350 mm/slub.c:4548\n dst_destroy+0x2ac/0x460 net/core/dst.c:124\n rcu_do_batch kernel/rcu/tree.c:2569 [inline]\n rcu_core+0xafd/0x1830 kernel/rcu/tree.\n---truncated---"
}
],
"metrics": [
{
"cvssV3_1": {
"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"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerability is triggered from the local transmit path via a `sendmsg`/`writev` syscall on an IPv6 raw or UDP socket, requiring local access to issue syscalls. The remote-facing callers (`icmp6_send`/`icmpv6_echo_reply`) use `xfrm_lookup()` and cannot produce the refcount-1 blackhole dst needed to free the route.\nAC:L - The attacker sets up both sides of the race \u2014 the xfrm policy that forces a refcount-1 blackhole dst and the conntrack defrag hook that drops it \u2014 and can spam the sendmsg loop under self-generated scheduling/interrupt load until the RCU grace period elapses in the window, as syzbot demonstrated.\nPR:L - An unprivileged local user reaches this via `unshare -Urn`, which grants `CAP_NET_RAW` (checked as `ns_capable(net-\u003euser_ns, ...)` in `net/ipv6/af_inet6.c:167`) and `CAP_NET_ADMIN` for the xfrm policy; the UDPv6 send path itself requires no capability.\nUI:N - The attacker performs every step \u2014 policy setup and packet transmission \u2014 from their own process with no action by any other user.\nS:U - The use-after-free corrupts kernel memory within the same kernel security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The freed `rt6_info` slab is read after release, and the leaked `rt6i_idev` value is dereferenced, so a groomed reallocation turns this into disclosure of arbitrary kernel memory contents.\nI:H - `IP6_INC_STATS` expands to `this_cpu_inc()` through the stale `rt6i_idev` pointer, giving an attacker-controlled 64-bit increment at an arbitrary address once the freed slab is reclaimed with sprayed data \u2014 a write primitive usable for privilege escalation.\nA:H - The use-after-free reliably produces a KASAN splat or a wild-pointer dereference and kernel oops/panic, and can be re-triggered repeatedly by an unprivileged local user."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:37:29.834Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/571567e0277008459750f0728f246086b2659429"
},
{
"url": "https://git.kernel.org/stable/c/ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8"
},
{
"url": "https://git.kernel.org/stable/c/cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e"
},
{
"url": "https://git.kernel.org/stable/c/24e93695b1239fbe4c31e224372be77f82dab69a"
},
{
"url": "https://git.kernel.org/stable/c/9a3e55afa95ed4ac9eda112d4f918af645d72f25"
},
{
"url": "https://git.kernel.org/stable/c/af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011"
},
{
"url": "https://git.kernel.org/stable/c/e44bd76dd072756e674f45c5be00153f4ded68b2"
},
{
"url": "https://git.kernel.org/stable/c/faa389b2fbaaec7fd27a390b4896139f9da662e3"
}
],
"title": "ipv6: prevent UAF in ip6_send_skb()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-44987",
"datePublished": "2024-09-04T19:54:35.510Z",
"dateReserved": "2024-08-21T05:34:56.671Z",
"dateUpdated": "2026-08-05T11:37:29.834Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2024-44987",
"date": "2026-08-09",
"epss": "0.00255",
"percentile": "0.16981"
},
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"2.6.32\", \"versionEndExcluding\": \"4.19.321\", \"matchCriteriaId\": \"9ADDB000-FDCD-401B-AD98-165AB6788080\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.20\", \"versionEndExcluding\": \"5.4.283\", \"matchCriteriaId\": \"8E6B390A-0CE6-44FC-8CD5-BE8226D6D24C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.5\", \"versionEndExcluding\": \"5.10.225\", \"matchCriteriaId\": \"C57B46A9-B105-4792-8481-1870DEFB436A\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.15.166\", \"matchCriteriaId\": \"913ED6CD-8ACF-48AF-AA18-7880881DD402\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.16\", \"versionEndExcluding\": \"6.1.107\", \"matchCriteriaId\": \"53954FF8-CB48-4302-BC4C-9DA7A88F44A2\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.2\", \"versionEndExcluding\": \"6.6.48\", \"matchCriteriaId\": \"9DE9201A-CE6B-4726-BABB-8265EA0F8AE4\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.7\", \"versionEndExcluding\": \"6.10.7\", \"matchCriteriaId\": \"D2AFDFD1-D95A-4EB7-843B-5E7659518B67\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*\", \"matchCriteriaId\": \"8B3CE743-2126-47A3-8B7C-822B502CF119\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*\", \"matchCriteriaId\": \"4DEB27E7-30AA-45CC-8934-B89263EF3551\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*\", \"matchCriteriaId\": \"E0005AEF-856E-47EB-BFE4-90C46899394D\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*\", \"matchCriteriaId\": \"39889A68-6D34-47A6-82FC-CD0BF23D6754\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipv6: prevent UAF in ip6_send_skb()\\n\\nsyzbot reported an UAF in ip6_send_skb() [1]\\n\\nAfter ip6_local_out() has returned, we no longer can safely\\ndereference rt, unless we hold rcu_read_lock().\\n\\nA similar issue has been fixed in commit\\na688caa34beb (\\\"ipv6: take rcu lock in rawv6_send_hdrinc()\\\")\\n\\nAnother potential issue in ip6_finish_output2() is handled in a\\nseparate patch.\\n\\n[1]\\n BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964\\nRead of size 8 at addr ffff88806dde4858 by task syz.1.380/6530\\n\\nCPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:93 [inline]\\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\\n print_address_description mm/kasan/report.c:377 [inline]\\n print_report+0x169/0x550 mm/kasan/report.c:488\\n kasan_report+0x143/0x180 mm/kasan/report.c:601\\n ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964\\n rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588\\n rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x1a6/0x270 net/socket.c:745\\n sock_write_iter+0x2dd/0x400 net/socket.c:1160\\n do_iter_readv_writev+0x60a/0x890\\n vfs_writev+0x37c/0xbb0 fs/read_write.c:971\\n do_writev+0x1b1/0x350 fs/read_write.c:1018\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\nRIP: 0033:0x7f936bf79e79\\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014\\nRAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79\\nRDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004\\nRBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8\\n \u003c/TASK\u003e\\n\\nAllocated by task 6530:\\n kasan_save_stack mm/kasan/common.c:47 [inline]\\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\\n unpoison_slab_object mm/kasan/common.c:312 [inline]\\n __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338\\n kasan_slab_alloc include/linux/kasan.h:201 [inline]\\n slab_post_alloc_hook mm/slub.c:3988 [inline]\\n slab_alloc_node mm/slub.c:4037 [inline]\\n kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044\\n dst_alloc+0x12b/0x190 net/core/dst.c:89\\n ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670\\n make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]\\n xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313\\n ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257\\n rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x1a6/0x270 net/socket.c:745\\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597\\n ___sys_sendmsg net/socket.c:2651 [inline]\\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nFreed by task 45:\\n kasan_save_stack mm/kasan/common.c:47 [inline]\\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\\n kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579\\n poison_slab_object+0xe0/0x150 mm/kasan/common.c:240\\n __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256\\n kasan_slab_free include/linux/kasan.h:184 [inline]\\n slab_free_hook mm/slub.c:2252 [inline]\\n slab_free mm/slub.c:4473 [inline]\\n kmem_cache_free+0x145/0x350 mm/slub.c:4548\\n dst_destroy+0x2ac/0x460 net/core/dst.c:124\\n rcu_do_batch kernel/rcu/tree.c:2569 [inline]\\n rcu_core+0xafd/0x1830 kernel/rcu/tree.\\n---truncated---\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipv6: evitar UAF en ip6_send_skb() syzbot inform\\u00f3 de un UAF en ip6_send_skb() [1] Despu\\u00e9s de que ip6_local_out() haya regresado, ya no podemos desreferenciar rt de forma segura, a menos que mantengamos rcu_read_lock(). Se ha solucionado un problema similar en el commit a688caa34beb (\\\"ipv6: tomar bloqueo rcu en rawv6_send_hdrinc()\\\") Otro problema potencial en ip6_finish_output2() se maneja en un parche independiente. [1] ERROR: KASAN: slab-use-after-free en ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964 Lectura de tama\\u00f1o 8 en la direcci\\u00f3n ffff88806dde4858 por la tarea syz.1.380/6530 CPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 No contaminado 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:93 [en l\\u00ednea] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 descripci\\u00f3n_direcci\\u00f3n_impresi\\u00f3n mm/kasan/report.c:377 [en l\\u00ednea] informe_impresi\\u00f3n+0x169/0x550 mm/kasan/report.c:488 informe_kasan+0x143/0x180 mm/kasan/report.c:601 ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964 tramas_pendientes_de_env\\u00edo_sin_formato_v6+0x75c/0x9e0 net/ipv6/raw.c:588 env\\u00edo_sin_formato_v6+0x19c7/0x23c0 net/ipv6/raw.c:926 env\\u00edo_sin_formato_v6_nosec net/socket.c:730 [en l\\u00ednea] __sock_sendmsg+0x1a6/0x270 net/socket.c:745 sock_write_iter+0x2dd/0x400 net/socket.c:1160 do_iter_readv_writev+0x60a/0x890 vfs_writev+0x37c/0xbb0 fs/read_write.c:971 do_writev+0x1b1/0x350 fs/read_write.c:1018 do_syscall_x64 arch/x86/entry/common.c:52 [en l\\u00ednea] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f DESCANSE EN P\\u00c9RDIDA: 0033:0x7f936bf79e79 C\\u00f3digo: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000014 RAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79 RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 00000000000000246 R12: 00000000000000000 R13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8 Asignado por la tarea 6530: kasan_save_stack mm/kasan/common.c:47 [en l\\u00ednea] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [en l\\u00ednea] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [en l\\u00ednea] slab_post_alloc_hook mm/slub.c:3988 [en l\\u00ednea] slab_alloc_node mm/slub.c:4037 [en l\\u00ednea] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044 dst_alloc+0x12b/0x190 net/core/dst.c:89 ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670 make_blackhole net/xfrm/xfrm_policy.c:3120 [en l\\u00ednea] xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313 ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257 rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898 sock_sendmsg_nosec net/socket.c:730 [en l\\u00ednea] __sock_sendmsg+0x1a6/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [en l\\u00ednea] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680 do_syscall_x64 arch/x86/entry/common.c:52 [en l\\u00ednea] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Liberado por la tarea 45: kasan_save_stack mm/kasan/common.c:47 [en l\\u00ednea] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [en l\\u00ednea] slab_free_hook mm/slub.c:2252 ---truncado---\"}]",
"id": "CVE-2024-44987",
"lastModified": "2024-09-05T17:53:54.687",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 5.9}]}",
"published": "2024-09-04T20:15:07.890",
"references": "[{\"url\": \"https://git.kernel.org/stable/c/24e93695b1239fbe4c31e224372be77f82dab69a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/571567e0277008459750f0728f246086b2659429\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/9a3e55afa95ed4ac9eda112d4f918af645d72f25\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/e44bd76dd072756e674f45c5be00153f4ded68b2\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/faa389b2fbaaec7fd27a390b4896139f9da662e3\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}]",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}]"
},
"microsoft_vex": {
"current_release_date": "2026-02-18T01:18:07.000Z",
"cve": "CVE-2024-44987",
"id": "msrc_CVE-2024-44987",
"initial_release_date": "2024-09-01T07:00:00.000Z",
"product_status:fixed": "5",
"product_status:known_affected": "5",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "ipv6: prevent UAF in ip6_send_skb()",
"url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-44987.json",
"version": "3"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2024-44987\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-09-04T20:15:07.890\",\"lastModified\":\"2026-08-04T11:20:07.063\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipv6: prevent UAF in ip6_send_skb()\\n\\nsyzbot reported an UAF in ip6_send_skb() [1]\\n\\nAfter ip6_local_out() has returned, we no longer can safely\\ndereference rt, unless we hold rcu_read_lock().\\n\\nA similar issue has been fixed in commit\\na688caa34beb (\\\"ipv6: take rcu lock in rawv6_send_hdrinc()\\\")\\n\\nAnother potential issue in ip6_finish_output2() is handled in a\\nseparate patch.\\n\\n[1]\\n BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964\\nRead of size 8 at addr ffff88806dde4858 by task syz.1.380/6530\\n\\nCPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:93 [inline]\\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\\n print_address_description mm/kasan/report.c:377 [inline]\\n print_report+0x169/0x550 mm/kasan/report.c:488\\n kasan_report+0x143/0x180 mm/kasan/report.c:601\\n ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964\\n rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588\\n rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x1a6/0x270 net/socket.c:745\\n sock_write_iter+0x2dd/0x400 net/socket.c:1160\\n do_iter_readv_writev+0x60a/0x890\\n vfs_writev+0x37c/0xbb0 fs/read_write.c:971\\n do_writev+0x1b1/0x350 fs/read_write.c:1018\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\nRIP: 0033:0x7f936bf79e79\\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014\\nRAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79\\nRDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004\\nRBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8\\n \u003c/TASK\u003e\\n\\nAllocated by task 6530:\\n kasan_save_stack mm/kasan/common.c:47 [inline]\\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\\n unpoison_slab_object mm/kasan/common.c:312 [inline]\\n __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338\\n kasan_slab_alloc include/linux/kasan.h:201 [inline]\\n slab_post_alloc_hook mm/slub.c:3988 [inline]\\n slab_alloc_node mm/slub.c:4037 [inline]\\n kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044\\n dst_alloc+0x12b/0x190 net/core/dst.c:89\\n ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670\\n make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]\\n xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313\\n ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257\\n rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x1a6/0x270 net/socket.c:745\\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597\\n ___sys_sendmsg net/socket.c:2651 [inline]\\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nFreed by task 45:\\n kasan_save_stack mm/kasan/common.c:47 [inline]\\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\\n kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579\\n poison_slab_object+0xe0/0x150 mm/kasan/common.c:240\\n __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256\\n kasan_slab_free include/linux/kasan.h:184 [inline]\\n slab_free_hook mm/slub.c:2252 [inline]\\n slab_free mm/slub.c:4473 [inline]\\n kmem_cache_free+0x145/0x350 mm/slub.c:4548\\n dst_destroy+0x2ac/0x460 net/core/dst.c:124\\n rcu_do_batch kernel/rcu/tree.c:2569 [inline]\\n rcu_core+0xafd/0x1830 kernel/rcu/tree.\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipv6: evitar UAF en ip6_send_skb() syzbot inform\u00f3 de un UAF en ip6_send_skb() [1] Despu\u00e9s de que ip6_local_out() haya regresado, ya no podemos desreferenciar rt de forma segura, a menos que mantengamos rcu_read_lock(). Se ha solucionado un problema similar en el commit a688caa34beb (\\\"ipv6: tomar bloqueo rcu en rawv6_send_hdrinc()\\\") Otro problema potencial en ip6_finish_output2() se maneja en un parche independiente. [1] ERROR: KASAN: slab-use-after-free en ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964 Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff88806dde4858 por la tarea syz.1.380/6530 CPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 No contaminado 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:93 [en l\u00ednea] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 descripci\u00f3n_direcci\u00f3n_impresi\u00f3n mm/kasan/report.c:377 [en l\u00ednea] informe_impresi\u00f3n+0x169/0x550 mm/kasan/report.c:488 informe_kasan+0x143/0x180 mm/kasan/report.c:601 ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964 tramas_pendientes_de_env\u00edo_sin_formato_v6+0x75c/0x9e0 net/ipv6/raw.c:588 env\u00edo_sin_formato_v6+0x19c7/0x23c0 net/ipv6/raw.c:926 env\u00edo_sin_formato_v6_nosec net/socket.c:730 [en l\u00ednea] __sock_sendmsg+0x1a6/0x270 net/socket.c:745 sock_write_iter+0x2dd/0x400 net/socket.c:1160 do_iter_readv_writev+0x60a/0x890 vfs_writev+0x37c/0xbb0 fs/read_write.c:971 do_writev+0x1b1/0x350 fs/read_write.c:1018 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f DESCANSE EN P\u00c9RDIDA: 0033:0x7f936bf79e79 C\u00f3digo: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000014 RAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79 RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 00000000000000246 R12: 00000000000000000 R13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8 Asignado por la tarea 6530: kasan_save_stack mm/kasan/common.c:47 [en l\u00ednea] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [en l\u00ednea] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [en l\u00ednea] slab_post_alloc_hook mm/slub.c:3988 [en l\u00ednea] slab_alloc_node mm/slub.c:4037 [en l\u00ednea] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044 dst_alloc+0x12b/0x190 net/core/dst.c:89 ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670 make_blackhole net/xfrm/xfrm_policy.c:3120 [en l\u00ednea] xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313 ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257 rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898 sock_sendmsg_nosec net/socket.c:730 [en l\u00ednea] __sock_sendmsg+0x1a6/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [en l\u00ednea] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Liberado por la tarea 45: kasan_save_stack mm/kasan/common.c:47 [en l\u00ednea] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [en l\u00ednea] slab_free_hook mm/slub.c:2252 ---truncado---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/ipv6/ip6_output.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"0625491493d9000e4556bf566d205c28c8e7dc4e\",\"lessThan\":\"571567e0277008459750f0728f246086b2659429\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0625491493d9000e4556bf566d205c28c8e7dc4e\",\"lessThan\":\"ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0625491493d9000e4556bf566d205c28c8e7dc4e\",\"lessThan\":\"cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0625491493d9000e4556bf566d205c28c8e7dc4e\",\"lessThan\":\"24e93695b1239fbe4c31e224372be77f82dab69a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0625491493d9000e4556bf566d205c28c8e7dc4e\",\"lessThan\":\"9a3e55afa95ed4ac9eda112d4f918af645d72f25\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0625491493d9000e4556bf566d205c28c8e7dc4e\",\"lessThan\":\"af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0625491493d9000e4556bf566d205c28c8e7dc4e\",\"lessThan\":\"e44bd76dd072756e674f45c5be00153f4ded68b2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0625491493d9000e4556bf566d205c28c8e7dc4e\",\"lessThan\":\"faa389b2fbaaec7fd27a390b4896139f9da662e3\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/ipv6/ip6_output.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.32\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.32\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.321\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.283\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.225\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.166\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.107\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.48\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10.7\",\"lessThanOrEqual\":\"6.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM RST2428P\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.2\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM RST2428P\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.2\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.2\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-04T20:20:00.407827Z\",\"id\":\"CVE-2024-44987\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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"current_release_date": "2026-08-04T18:13:34+00:00",
"cve": "CVE-2024-44987",
"id": "CVE-2024-44987",
"initial_release_date": "2024-09-04T00:00:00+00:00",
"product_status:fixed": "305",
"product_status:known_affected": "112",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: ipv6: prevent UAF in ip6_send_skb()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-44987.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-07-25T01:40:18Z",
"cve": "CVE-2024-44987",
"id": "CVE-2024-44987",
"initial_release_date": "2024-09-05T02:46:36Z",
"product_status:known_affected": "470",
"product_status:known_not_affected": "84",
"product_status:recommended": "861",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-44987",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-44987.json",
"version": "70"
},
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The remote-facing callers (`icmp6_send`/`icmpv6_echo_reply`) use `xfrm_lookup()` and cannot produce the refcount-1 blackhole dst needed to free the route.\\nAC:L - The attacker sets up both sides of the race \\u2014 the xfrm policy that forces a refcount-1 blackhole dst and the conntrack defrag hook that drops it \\u2014 and can spam the sendmsg loop under self-generated scheduling/interrupt load until the RCU grace period elapses in the window, as syzbot demonstrated.\\nPR:L - An unprivileged local user reaches this via `unshare -Urn`, which grants `CAP_NET_RAW` (checked as `ns_capable(net-\u003euser_ns, ...)` in `net/ipv6/af_inet6.c:167`) and `CAP_NET_ADMIN` for the xfrm policy; the UDPv6 send path itself requires no capability.\\nUI:N - The attacker performs every step \\u2014 policy setup and packet transmission \\u2014 from their own process with no action by any other user.\\nS:U - The use-after-free corrupts kernel memory within the same kernel security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\\nC:H - The freed `rt6_info` slab is read after release, and the leaked `rt6i_idev` value is dereferenced, so a groomed reallocation turns this into disclosure of arbitrary kernel memory contents.\\nI:H - `IP6_INC_STATS` expands to `this_cpu_inc()` through the stale `rt6i_idev` pointer, giving an attacker-controlled 64-bit increment at an arbitrary address once the freed slab is reclaimed with sprayed data \\u2014 a write primitive usable for privilege escalation.\\nA:H - The use-after-free reliably produces a KASAN splat or a wild-pointer dereference and kernel oops/panic, and can be re-triggered repeatedly by an unprivileged local user.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"0625491493d9000e4556bf566d205c28c8e7dc4e\", \"lessThan\": \"571567e0277008459750f0728f246086b2659429\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0625491493d9000e4556bf566d205c28c8e7dc4e\", \"lessThan\": \"ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0625491493d9000e4556bf566d205c28c8e7dc4e\", \"lessThan\": \"cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0625491493d9000e4556bf566d205c28c8e7dc4e\", \"lessThan\": \"24e93695b1239fbe4c31e224372be77f82dab69a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0625491493d9000e4556bf566d205c28c8e7dc4e\", \"lessThan\": \"9a3e55afa95ed4ac9eda112d4f918af645d72f25\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0625491493d9000e4556bf566d205c28c8e7dc4e\", \"lessThan\": \"af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": 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\"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.166\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.107\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.48\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv6/ip6_output.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/571567e0277008459750f0728f246086b2659429\"}, {\"url\": \"https://git.kernel.org/stable/c/ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8\"}, {\"url\": \"https://git.kernel.org/stable/c/cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e\"}, {\"url\": \"https://git.kernel.org/stable/c/24e93695b1239fbe4c31e224372be77f82dab69a\"}, {\"url\": \"https://git.kernel.org/stable/c/9a3e55afa95ed4ac9eda112d4f918af645d72f25\"}, {\"url\": \"https://git.kernel.org/stable/c/af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011\"}, {\"url\": \"https://git.kernel.org/stable/c/e44bd76dd072756e674f45c5be00153f4ded68b2\"}, {\"url\": \"https://git.kernel.org/stable/c/faa389b2fbaaec7fd27a390b4896139f9da662e3\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipv6: prevent UAF in ip6_send_skb()\\n\\nsyzbot reported an UAF in ip6_send_skb() [1]\\n\\nAfter ip6_local_out() has returned, we no longer can safely\\ndereference rt, unless we hold rcu_read_lock().\\n\\nA similar issue has been fixed in commit\\na688caa34beb (\\\"ipv6: take rcu lock in rawv6_send_hdrinc()\\\")\\n\\nAnother potential issue in ip6_finish_output2() is handled in a\\nseparate patch.\\n\\n[1]\\n BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964\\nRead of size 8 at addr ffff88806dde4858 by task syz.1.380/6530\\n\\nCPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:93 [inline]\\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\\n print_address_description mm/kasan/report.c:377 [inline]\\n print_report+0x169/0x550 mm/kasan/report.c:488\\n kasan_report+0x143/0x180 mm/kasan/report.c:601\\n ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964\\n rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588\\n rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x1a6/0x270 net/socket.c:745\\n sock_write_iter+0x2dd/0x400 net/socket.c:1160\\n do_iter_readv_writev+0x60a/0x890\\n vfs_writev+0x37c/0xbb0 fs/read_write.c:971\\n do_writev+0x1b1/0x350 fs/read_write.c:1018\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\nRIP: 0033:0x7f936bf79e79\\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014\\nRAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79\\nRDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004\\nRBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8\\n \u003c/TASK\u003e\\n\\nAllocated by task 6530:\\n kasan_save_stack mm/kasan/common.c:47 [inline]\\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\\n unpoison_slab_object mm/kasan/common.c:312 [inline]\\n __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338\\n kasan_slab_alloc include/linux/kasan.h:201 [inline]\\n slab_post_alloc_hook mm/slub.c:3988 [inline]\\n slab_alloc_node mm/slub.c:4037 [inline]\\n kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044\\n dst_alloc+0x12b/0x190 net/core/dst.c:89\\n ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670\\n make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]\\n xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313\\n ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257\\n rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x1a6/0x270 net/socket.c:745\\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597\\n ___sys_sendmsg net/socket.c:2651 [inline]\\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nFreed by task 45:\\n kasan_save_stack mm/kasan/common.c:47 [inline]\\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\\n kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579\\n poison_slab_object+0xe0/0x150 mm/kasan/common.c:240\\n __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256\\n kasan_slab_free include/linux/kasan.h:184 [inline]\\n slab_free_hook mm/slub.c:2252 [inline]\\n slab_free mm/slub.c:4473 [inline]\\n kmem_cache_free+0x145/0x350 mm/slub.c:4548\\n dst_destroy+0x2ac/0x460 net/core/dst.c:124\\n rcu_do_batch kernel/rcu/tree.c:2569 [inline]\\n rcu_core+0xafd/0x1830 kernel/rcu/tree.\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.321\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.283\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.225\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.166\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.107\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.48\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.7\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11\", \"versionStartIncluding\": \"2.6.32\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T11:37:29.834Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-44987\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:37:29.834Z\", \"dateReserved\": \"2024-08-21T05:34:56.671Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-09-04T19:54:35.510Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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