CVE-2024-26852 (GCVE-0-2024-26852)
Vulnerability from cvelistv5 – Published: 2024-04-17 10:17 – Updated: 2026-08-05 11:27
VLAI
EPSS
VEX
Title
net/ipv6: avoid possible UAF in ip6_route_mpath_notify()
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/ipv6: avoid possible UAF in ip6_route_mpath_notify()
syzbot found another use-after-free in ip6_route_mpath_notify() [1]
Commit f7225172f25a ("net/ipv6: prevent use after free in
ip6_route_mpath_notify") was not able to fix the root cause.
We need to defer the fib6_info_release() calls after
ip6_route_mpath_notify(), in the cleanup phase.
[1]
BUG: KASAN: slab-use-after-free in rt6_fill_node+0x1460/0x1ac0
Read of size 4 at addr ffff88809a07fc64 by task syz-executor.2/23037
CPU: 0 PID: 23037 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-01035-gea7f3cfaa588 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x167/0x540 mm/kasan/report.c:488
kasan_report+0x142/0x180 mm/kasan/report.c:601
rt6_fill_node+0x1460/0x1ac0
inet6_rt_notify+0x13b/0x290 net/ipv6/route.c:6184
ip6_route_mpath_notify net/ipv6/route.c:5198 [inline]
ip6_route_multipath_add net/ipv6/route.c:5404 [inline]
inet6_rtm_newroute+0x1d0f/0x2300 net/ipv6/route.c:5517
rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367
netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f73dd87dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f73de6550c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f73dd9ac050 RCX: 00007f73dd87dda9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005
RBP: 00007f73dd8ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f73dd9ac050 R15: 00007ffdbdeb7858
</TASK>
Allocated by task 23037:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:372 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slub.c:3981 [inline]
__kmalloc+0x22e/0x490 mm/slub.c:3994
kmalloc include/linux/slab.h:594 [inline]
kzalloc include/linux/slab.h:711 [inline]
fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155
ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3758
ip6_route_multipath_add net/ipv6/route.c:5298 [inline]
inet6_rtm_newroute+0x744/0x2300 net/ipv6/route.c:5517
rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367
netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
Freed by task 16:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x4e/0x60 mm/kasan/generic.c:640
poison_slab_object+0xa6/0xe0 m
---truncated---
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-19 20:41 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
11 references
Impacted products
4 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
3b1137fe74829e021f483756a648cbb87c8a1b4a , < 31ea5bcc7d4cd1423de6be327a2c034725704136
(git)
Affected: 3b1137fe74829e021f483756a648cbb87c8a1b4a , < 664f9c647260cc9d68b4e31d9899530d89dd045e (git) Affected: 3b1137fe74829e021f483756a648cbb87c8a1b4a , < 79ce2e54cc0ae366f45516c00bf1b19aa43e9abe (git) Affected: 3b1137fe74829e021f483756a648cbb87c8a1b4a , < cae3303257950d03ffec2df4a45e836f10d26c24 (git) Affected: 3b1137fe74829e021f483756a648cbb87c8a1b4a , < 394334fe2ae3b9f1e2332b873857e84cb28aac18 (git) Affected: 3b1137fe74829e021f483756a648cbb87c8a1b4a , < ed883060c38721ed828061f6c0c30e5147326c9a (git) Affected: 3b1137fe74829e021f483756a648cbb87c8a1b4a , < 61b34f73cdbdb8eaf9ea12e9e2eb3b29716c4dda (git) Affected: 3b1137fe74829e021f483756a648cbb87c8a1b4a , < 685f7d531264599b3f167f1e94bbd22f120e5fab (git) |
guessed | |
| Linux | Linux |
Affected:
4.11
Unaffected: 0 , < 4.11 (semver) Unaffected: 4.19.310 , ≤ 4.19.* (semver) Unaffected: 5.4.272 , ≤ 5.4.* (semver) Unaffected: 5.10.213 , ≤ 5.10.* (semver) Unaffected: 5.15.152 , ≤ 5.15.* (semver) Unaffected: 6.1.82 , ≤ 6.1.* (semver) Unaffected: 6.6.22 , ≤ 6.6.* (semver) Unaffected: 6.7.10 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix) |
guessed | |
| linux | linux_kernel |
Affected:
3b1137fe7482 , < 31ea5bcc7d4c
(custom)
Affected: 3b1137fe7482 , < 664f9c647260 (custom) Affected: 3b1137fe7482 , < 79ce2e54cc0a (custom) Affected: 3b1137fe7482 , < cae330325795 (custom) Affected: 3b1137fe7482 , < 394334fe2ae3 (custom) Affected: 3b1137fe7482 , < ed883060c387 (custom) Affected: 3b1137fe7482 , < 61b34f73cdbd (custom) Affected: 3b1137fe7482 , < 685f7d531264 (custom) Affected: 4.11 Unaffected: 0 , < 4.11 (custom) Unaffected: 4.19.310 , ≤ 4.20 (custom) Unaffected: 5.4.272 , ≤ 5.5 (custom) Unaffected: 5.10.213 , ≤ 5.11 (custom) Unaffected: 5.15.152 , ≤ 5.16 (custom) Unaffected: 6.1.82 , ≤ 6.2 (custom) Unaffected: 6.6.22 , ≤ 6.7 (custom) Unaffected: 6.7.10 , ≤ 6.8 (custom) Unaffected: 6.8 , ≤ * (custom) cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
guessed |
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},
{
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]
}
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"cpeApplicability": [
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{
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{
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{
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{
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}
],
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]
}
],
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/ipv6: avoid possible UAF in ip6_route_mpath_notify()\n\nsyzbot found another use-after-free in ip6_route_mpath_notify() [1]\n\nCommit f7225172f25a (\"net/ipv6: prevent use after free in\nip6_route_mpath_notify\") was not able to fix the root cause.\n\nWe need to defer the fib6_info_release() calls after\nip6_route_mpath_notify(), in the cleanup phase.\n\n[1]\nBUG: KASAN: slab-use-after-free in rt6_fill_node+0x1460/0x1ac0\nRead of size 4 at addr ffff88809a07fc64 by task syz-executor.2/23037\n\nCPU: 0 PID: 23037 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-01035-gea7f3cfaa588 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x167/0x540 mm/kasan/report.c:488\n kasan_report+0x142/0x180 mm/kasan/report.c:601\n rt6_fill_node+0x1460/0x1ac0\n inet6_rt_notify+0x13b/0x290 net/ipv6/route.c:6184\n ip6_route_mpath_notify net/ipv6/route.c:5198 [inline]\n ip6_route_multipath_add net/ipv6/route.c:5404 [inline]\n inet6_rtm_newroute+0x1d0f/0x2300 net/ipv6/route.c:5517\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:745\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\n ___sys_sendmsg net/socket.c:2638 [inline]\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\n do_syscall_64+0xf9/0x240\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\nRIP: 0033:0x7f73dd87dda9\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f73de6550c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007f73dd9ac050 RCX: 00007f73dd87dda9\nRDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005\nRBP: 00007f73dd8ca47a R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 000000000000006e R14: 00007f73dd9ac050 R15: 00007ffdbdeb7858\n \u003c/TASK\u003e\n\nAllocated by task 23037:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n poison_kmalloc_redzone mm/kasan/common.c:372 [inline]\n __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389\n kasan_kmalloc include/linux/kasan.h:211 [inline]\n __do_kmalloc_node mm/slub.c:3981 [inline]\n __kmalloc+0x22e/0x490 mm/slub.c:3994\n kmalloc include/linux/slab.h:594 [inline]\n kzalloc include/linux/slab.h:711 [inline]\n fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155\n ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3758\n ip6_route_multipath_add net/ipv6/route.c:5298 [inline]\n inet6_rtm_newroute+0x744/0x2300 net/ipv6/route.c:5517\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:745\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\n ___sys_sendmsg net/socket.c:2638 [inline]\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\n do_syscall_64+0xf9/0x240\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\n\nFreed by task 16:\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+0x4e/0x60 mm/kasan/generic.c:640\n poison_slab_object+0xa6/0xe0 m\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 by an RTM_NEWROUTE message sent over an AF_NETLINK/NETLINK_ROUTE socket via sendmsg(), which requires local access to the system. There is no remote packet-processing path into ip6_route_multipath_add().\nAC:L - The attacker creates both sides of the condition: they drop the last reference themselves and can widen the window arbitrarily by supplying many nexthops, by setting RTA_EXPIRES=0 so the non-rtnl gc softirq reaps the route, and by lowering net.ipv6.route.gc_interval inside their own netns, with unlimited retries. syzbot reproduced it, confirming reliable triggerability.\nPR:L - rtnetlink_rcv_msg() only requires netlink_net_capable(skb, CAP_NET_ADMIN), which is evaluated against the network namespace\u0027s user namespace, so any unprivileged local user obtains it with `unshare -Urn`. Multipath ECMP routes are addable in that namespace using RTNH_F_ONLINK gateways, which bypasses gateway reachability validation.\nUI:N - The entire sequence is performed by the attacker\u0027s own process in a single netlink transaction; no victim action, mount, or other interaction is needed.\nS:U - The use-after-free corrupts kernel heap memory and is exploited within the same kernel security authority; no VM, IOMMU, or hypervisor boundary is crossed.\nC:H - rt6_fill_node() reads the freed kmalloc-512 fib6_info and copies its contents into an RTM_NEWROUTE netlink message returned to the attacker\u0027s socket, including dereferencing pointers taken from freed memory such as rt-\u003efib6_metrics (passed to rtnetlink_put_metrics()), rt-\u003efib6_table, and rt-\u003efib6_nh. Reclaiming the freed slot with controlled data turns this into an arbitrary kernel-memory read leaked directly to userspace.\nI:H - This is a use-after-free on a 512-byte kmalloc object that an unprivileged attacker can spray and reclaim, after which the kernel dereferences attacker-controlled pointers and performs a list_for_each_entry_safe() walk over the freed fib6_siblings list head. That yields controlled pointer traversal and corruption suitable for privilege escalation.\nA:H - The KASAN slab-use-after-free in rt6_fill_node() causes an oops/panic when the freed object is unmapped, poisoned, or reclaimed with invalid pointers, and it can be triggered repeatedly to reliably crash the kernel."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:27:48.147Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/31ea5bcc7d4cd1423de6be327a2c034725704136"
},
{
"url": "https://git.kernel.org/stable/c/664f9c647260cc9d68b4e31d9899530d89dd045e"
},
{
"url": "https://git.kernel.org/stable/c/79ce2e54cc0ae366f45516c00bf1b19aa43e9abe"
},
{
"url": "https://git.kernel.org/stable/c/cae3303257950d03ffec2df4a45e836f10d26c24"
},
{
"url": "https://git.kernel.org/stable/c/394334fe2ae3b9f1e2332b873857e84cb28aac18"
},
{
"url": "https://git.kernel.org/stable/c/ed883060c38721ed828061f6c0c30e5147326c9a"
},
{
"url": "https://git.kernel.org/stable/c/61b34f73cdbdb8eaf9ea12e9e2eb3b29716c4dda"
},
{
"url": "https://git.kernel.org/stable/c/685f7d531264599b3f167f1e94bbd22f120e5fab"
}
],
"title": "net/ipv6: avoid possible UAF in ip6_route_mpath_notify()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-26852",
"datePublished": "2024-04-17T10:17:15.923Z",
"dateReserved": "2024-02-19T14:20:24.183Z",
"dateUpdated": "2026-08-05T11:27:48.147Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2024-26852",
"date": "2026-09-16",
"epss": "0.00269",
"percentile": "0.19102"
},
"fkie_nvd": {
"descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/ipv6: avoid possible UAF in ip6_route_mpath_notify()\\n\\nsyzbot found another use-after-free in ip6_route_mpath_notify() [1]\\n\\nCommit f7225172f25a (\\\"net/ipv6: prevent use after free in\\nip6_route_mpath_notify\\\") was not able to fix the root cause.\\n\\nWe need to defer the fib6_info_release() calls after\\nip6_route_mpath_notify(), in the cleanup phase.\\n\\n[1]\\nBUG: KASAN: slab-use-after-free in rt6_fill_node+0x1460/0x1ac0\\nRead of size 4 at addr ffff88809a07fc64 by task syz-executor.2/23037\\n\\nCPU: 0 PID: 23037 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-01035-gea7f3cfaa588 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106\\n print_address_description mm/kasan/report.c:377 [inline]\\n print_report+0x167/0x540 mm/kasan/report.c:488\\n kasan_report+0x142/0x180 mm/kasan/report.c:601\\n rt6_fill_node+0x1460/0x1ac0\\n inet6_rt_notify+0x13b/0x290 net/ipv6/route.c:6184\\n ip6_route_mpath_notify net/ipv6/route.c:5198 [inline]\\n ip6_route_multipath_add net/ipv6/route.c:5404 [inline]\\n inet6_rtm_newroute+0x1d0f/0x2300 net/ipv6/route.c:5517\\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x221/0x270 net/socket.c:745\\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\\n ___sys_sendmsg net/socket.c:2638 [inline]\\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\\n do_syscall_64+0xf9/0x240\\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\\nRIP: 0033:0x7f73dd87dda9\\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f73de6550c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\\nRAX: ffffffffffffffda RBX: 00007f73dd9ac050 RCX: 00007f73dd87dda9\\nRDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005\\nRBP: 00007f73dd8ca47a R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 000000000000006e R14: 00007f73dd9ac050 R15: 00007ffdbdeb7858\\n \u003c/TASK\u003e\\n\\nAllocated by task 23037:\\n kasan_save_stack mm/kasan/common.c:47 [inline]\\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\\n poison_kmalloc_redzone mm/kasan/common.c:372 [inline]\\n __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389\\n kasan_kmalloc include/linux/kasan.h:211 [inline]\\n __do_kmalloc_node mm/slub.c:3981 [inline]\\n __kmalloc+0x22e/0x490 mm/slub.c:3994\\n kmalloc include/linux/slab.h:594 [inline]\\n kzalloc include/linux/slab.h:711 [inline]\\n fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155\\n ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3758\\n ip6_route_multipath_add net/ipv6/route.c:5298 [inline]\\n inet6_rtm_newroute+0x744/0x2300 net/ipv6/route.c:5517\\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x221/0x270 net/socket.c:745\\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\\n ___sys_sendmsg net/socket.c:2638 [inline]\\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\\n do_syscall_64+0xf9/0x240\\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\\n\\nFreed by task 16:\\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+0x4e/0x60 mm/kasan/generic.c:640\\n poison_slab_object+0xa6/0xe0 m\\n---truncated---\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: net/ipv6: evita posible UAF en ip6_route_mpath_notify() syzbot encontr\\u00f3 otro use-after-free en ip6_route_mpath_notify() [1] Commit f7225172f25a (\\\"net/ipv6: previene el use-after-free in ip6_route_mpath_notify\\\") no pudo solucionar la causa ra\\u00edz. Necesitamos diferir las llamadas a fib6_info_release() despu\\u00e9s de ip6_route_mpath_notify(), en la fase de limpieza. [1] ERROR: KASAN: slab-use-after-free en rt6_fill_node+0x1460/0x1ac0 Lectura de tama\\u00f1o 4 en la direcci\\u00f3n ffff88809a07fc64 mediante la tarea syz-executor.2/23037 CPU: 0 PID: 23037 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-01035-gea7f3cfaa588 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 25/01/2024 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en l\\u00ednea] dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [en l\\u00ednea] print_report+0x167/0x540 mm/kasan/report.c:488 kasan_report+0x142/0x180 mm/kasan/report. c:601 rt6_fill_node+0x1460/0x1ac0 inet6_rt_notify+0x13b/0x290 net/ipv6/route.c:6184 ip6_route_mpath_notify net/ipv6/route.c:5198 [en l\\u00ednea] ip6_route_multipath_add net/ipv6/route.c:5404 et6_rtm_nuevaruta+ 0x1d0f/0x2300 net/ipv6/route.c:5517 rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543 netlink_unicast_kernel net/netlink/af_netlink.c:1 341 [en l\\u00ednea] netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [en l\\u00ednea] __sock_sendmsg+0x221/0x270 net/socket .c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [en l\\u00ednea] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_64+0xf9/0x240 entrada_SYSC ALL_64_after_hwframe+0x6f/0x77 RIP : 0033:0x7f73dd87dda9 C\\u00f3digo: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 24 08 0f 05 \u0026lt;48 \u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f73de6550c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: de RBX: 00007f73dd9ac050 RCX: 00007f73dd87dda9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005 RBP: 00007f73dd8ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f73dd9ac050 R15: 00007ffdbdeb7858 Asignado por tarea 23037: kasan_save_stack mm/kasan/common.c:47 [en l\\u00ednea] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 veneno_kmalloc_redzone mm/kasan/common.c:372 [en l\\u00ednea] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389 kasan_kmalloc include/linux/kasan.h: 211 [en l\\u00ednea] __do_kmalloc_node mm/slub.c:3981 [en l\\u00ednea] __kmalloc+0x22e/0x490 mm/slub.c:3994 kmalloc include/linux/slab.h:594 [en l\\u00ednea] kzalloc include/linux/slab.h:711 [en l\\u00ednea] fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155 ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3758 ip6_route_multipath_add net/ipv6/route.c:5298 [inet6_rtm_newroute+0x74 4/0x2300 neto /ipv6/route.c:5517 rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [en l\\u00ednea] netlink_unicast +0x7ea/0x980 net/netlink/af_netlink.c:1367 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [en l\\u00ednea] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [en l\\u00ednea] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_64+0xf9/0x240 entrada_SYSCALL_64_after_ hwframe+0x6f/0x77 Liberado por la tarea 16: 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+0x4e/0x60 mm/kasan/generic.c:640 veneno_slab_object+0xa6/0xe0 m --- truncado---\"}]",
"id": "CVE-2024-26852",
"lastModified": "2024-11-21T09:03:12.853",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"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}]}",
"published": "2024-04-17T11:15:08.530",
"references": "[{\"url\": \"https://git.kernel.org/stable/c/31ea5bcc7d4cd1423de6be327a2c034725704136\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/394334fe2ae3b9f1e2332b873857e84cb28aac18\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/61b34f73cdbdb8eaf9ea12e9e2eb3b29716c4dda\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/664f9c647260cc9d68b4e31d9899530d89dd045e\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/685f7d531264599b3f167f1e94bbd22f120e5fab\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/79ce2e54cc0ae366f45516c00bf1b19aa43e9abe\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/cae3303257950d03ffec2df4a45e836f10d26c24\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/ed883060c38721ed828061f6c0c30e5147326c9a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/31ea5bcc7d4cd1423de6be327a2c034725704136\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/394334fe2ae3b9f1e2332b873857e84cb28aac18\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/61b34f73cdbdb8eaf9ea12e9e2eb3b29716c4dda\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/664f9c647260cc9d68b4e31d9899530d89dd045e\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/685f7d531264599b3f167f1e94bbd22f120e5fab\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/79ce2e54cc0ae366f45516c00bf1b19aa43e9abe\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/cae3303257950d03ffec2df4a45e836f10d26c24\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/ed883060c38721ed828061f6c0c30e5147326c9a\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis",
"weaknesses": "[{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2024-26852\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-17T11:15:08.530\",\"lastModified\":\"2026-06-17T07:18:30.283\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/ipv6: avoid possible UAF in ip6_route_mpath_notify()\\n\\nsyzbot found another use-after-free in ip6_route_mpath_notify() [1]\\n\\nCommit f7225172f25a (\\\"net/ipv6: prevent use after free in\\nip6_route_mpath_notify\\\") was not able to fix the root cause.\\n\\nWe need to defer the fib6_info_release() calls after\\nip6_route_mpath_notify(), in the cleanup phase.\\n\\n[1]\\nBUG: KASAN: slab-use-after-free in rt6_fill_node+0x1460/0x1ac0\\nRead of size 4 at addr ffff88809a07fc64 by task syz-executor.2/23037\\n\\nCPU: 0 PID: 23037 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-01035-gea7f3cfaa588 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106\\n print_address_description mm/kasan/report.c:377 [inline]\\n print_report+0x167/0x540 mm/kasan/report.c:488\\n kasan_report+0x142/0x180 mm/kasan/report.c:601\\n rt6_fill_node+0x1460/0x1ac0\\n inet6_rt_notify+0x13b/0x290 net/ipv6/route.c:6184\\n ip6_route_mpath_notify net/ipv6/route.c:5198 [inline]\\n ip6_route_multipath_add net/ipv6/route.c:5404 [inline]\\n inet6_rtm_newroute+0x1d0f/0x2300 net/ipv6/route.c:5517\\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x221/0x270 net/socket.c:745\\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\\n ___sys_sendmsg net/socket.c:2638 [inline]\\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\\n do_syscall_64+0xf9/0x240\\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\\nRIP: 0033:0x7f73dd87dda9\\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f73de6550c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\\nRAX: ffffffffffffffda RBX: 00007f73dd9ac050 RCX: 00007f73dd87dda9\\nRDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005\\nRBP: 00007f73dd8ca47a R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 000000000000006e R14: 00007f73dd9ac050 R15: 00007ffdbdeb7858\\n \u003c/TASK\u003e\\n\\nAllocated by task 23037:\\n kasan_save_stack mm/kasan/common.c:47 [inline]\\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\\n poison_kmalloc_redzone mm/kasan/common.c:372 [inline]\\n __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389\\n kasan_kmalloc include/linux/kasan.h:211 [inline]\\n __do_kmalloc_node mm/slub.c:3981 [inline]\\n __kmalloc+0x22e/0x490 mm/slub.c:3994\\n kmalloc include/linux/slab.h:594 [inline]\\n kzalloc include/linux/slab.h:711 [inline]\\n fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155\\n ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3758\\n ip6_route_multipath_add net/ipv6/route.c:5298 [inline]\\n inet6_rtm_newroute+0x744/0x2300 net/ipv6/route.c:5517\\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x221/0x270 net/socket.c:745\\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\\n ___sys_sendmsg net/socket.c:2638 [inline]\\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\\n do_syscall_64+0xf9/0x240\\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\\n\\nFreed by task 16:\\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+0x4e/0x60 mm/kasan/generic.c:640\\n poison_slab_object+0xa6/0xe0 m\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: net/ipv6: evita posible UAF en ip6_route_mpath_notify() syzbot encontr\u00f3 otro use-after-free en ip6_route_mpath_notify() [1] Commit f7225172f25a (\\\"net/ipv6: previene el use-after-free in ip6_route_mpath_notify\\\") no pudo solucionar la causa ra\u00edz. Necesitamos diferir las llamadas a fib6_info_release() despu\u00e9s de ip6_route_mpath_notify(), en la fase de limpieza. [1] ERROR: KASAN: slab-use-after-free en rt6_fill_node+0x1460/0x1ac0 Lectura de tama\u00f1o 4 en la direcci\u00f3n ffff88809a07fc64 mediante la tarea syz-executor.2/23037 CPU: 0 PID: 23037 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-01035-gea7f3cfaa588 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 25/01/2024 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en l\u00ednea] dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [en l\u00ednea] print_report+0x167/0x540 mm/kasan/report.c:488 kasan_report+0x142/0x180 mm/kasan/report. c:601 rt6_fill_node+0x1460/0x1ac0 inet6_rt_notify+0x13b/0x290 net/ipv6/route.c:6184 ip6_route_mpath_notify net/ipv6/route.c:5198 [en l\u00ednea] ip6_route_multipath_add net/ipv6/route.c:5404 et6_rtm_nuevaruta+ 0x1d0f/0x2300 net/ipv6/route.c:5517 rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543 netlink_unicast_kernel net/netlink/af_netlink.c:1 341 [en l\u00ednea] netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [en l\u00ednea] __sock_sendmsg+0x221/0x270 net/socket .c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [en l\u00ednea] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_64+0xf9/0x240 entrada_SYSC ALL_64_after_hwframe+0x6f/0x77 RIP : 0033:0x7f73dd87dda9 C\u00f3digo: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 24 08 0f 05 \u0026lt;48 \u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f73de6550c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: de RBX: 00007f73dd9ac050 RCX: 00007f73dd87dda9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005 RBP: 00007f73dd8ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f73dd9ac050 R15: 00007ffdbdeb7858 Asignado por tarea 23037: kasan_save_stack mm/kasan/common.c:47 [en l\u00ednea] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 veneno_kmalloc_redzone mm/kasan/common.c:372 [en l\u00ednea] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389 kasan_kmalloc include/linux/kasan.h: 211 [en l\u00ednea] __do_kmalloc_node mm/slub.c:3981 [en l\u00ednea] __kmalloc+0x22e/0x490 mm/slub.c:3994 kmalloc include/linux/slab.h:594 [en l\u00ednea] kzalloc include/linux/slab.h:711 [en l\u00ednea] fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155 ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3758 ip6_route_multipath_add net/ipv6/route.c:5298 [inet6_rtm_newroute+0x74 4/0x2300 neto /ipv6/route.c:5517 rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [en l\u00ednea] netlink_unicast +0x7ea/0x980 net/netlink/af_netlink.c:1367 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [en l\u00ednea] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [en l\u00ednea] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_64+0xf9/0x240 entrada_SYSCALL_64_after_ hwframe+0x6f/0x77 Liberado por la tarea 16: 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+0x4e/0x60 mm/kasan/generic.c:640 veneno_slab_object+0xa6/0xe0 m --- truncado---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/ipv6/route.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3b1137fe74829e021f483756a648cbb87c8a1b4a\",\"lessThan\":\"31ea5bcc7d4cd1423de6be327a2c034725704136\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3b1137fe74829e021f483756a648cbb87c8a1b4a\",\"lessThan\":\"664f9c647260cc9d68b4e31d9899530d89dd045e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3b1137fe74829e021f483756a648cbb87c8a1b4a\",\"lessThan\":\"79ce2e54cc0ae366f45516c00bf1b19aa43e9abe\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3b1137fe74829e021f483756a648cbb87c8a1b4a\",\"lessThan\":\"cae3303257950d03ffec2df4a45e836f10d26c24\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3b1137fe74829e021f483756a648cbb87c8a1b4a\",\"lessThan\":\"394334fe2ae3b9f1e2332b873857e84cb28aac18\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3b1137fe74829e021f483756a648cbb87c8a1b4a\",\"lessThan\":\"ed883060c38721ed828061f6c0c30e5147326c9a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3b1137fe74829e021f483756a648cbb87c8a1b4a\",\"lessThan\":\"61b34f73cdbdb8eaf9ea12e9e2eb3b29716c4dda\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3b1137fe74829e021f483756a648cbb87c8a1b4a\",\"lessThan\":\"685f7d531264599b3f167f1e94bbd22f120e5fab\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/ipv6/route.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.11\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.11\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.310\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.272\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.213\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.152\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.82\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.22\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.7.10\",\"lessThanOrEqual\":\"6.7.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.8\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"affectedData\":[{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"3b1137fe7482\",\"lessThan\":\"31ea5bcc7d4c\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"3b1137fe7482\",\"lessThan\":\"664f9c647260\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"3b1137fe7482\",\"lessThan\":\"79ce2e54cc0a\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"3b1137fe7482\",\"lessThan\":\"cae330325795\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"3b1137fe7482\",\"lessThan\":\"394334fe2ae3\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"3b1137fe7482\",\"lessThan\":\"ed883060c387\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"3b1137fe7482\",\"lessThan\":\"61b34f73cdbd\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"3b1137fe7482\",\"lessThan\":\"685f7d531264\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"4.11\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.11\",\"versionType\":\"custom\",\"status\":\"unaffected\"},{\"version\":\"4.19.310\",\"lessThanOrEqual\":\"4.20\",\"versionType\":\"custom\",\"status\":\"unaffected\"},{\"version\":\"5.4.272\",\"lessThanOrEqual\":\"5.5\",\"versionType\":\"custom\",\"status\":\"unaffected\"},{\"version\":\"5.10.213\",\"lessThanOrEqual\":\"5.11\",\"versionType\":\"custom\",\"status\":\"unaffected\"},{\"version\":\"5.15.152\",\"lessThanOrEqual\":\"5.16\",\"versionType\":\"custom\",\"status\":\"unaffected\"},{\"version\":\"6.1.82\",\"lessThanOrEqual\":\"6.2\",\"versionType\":\"custom\",\"status\":\"unaffected\"},{\"version\":\"6.6.22\",\"lessThanOrEqual\":\"6.7\",\"versionType\":\"custom\",\"status\":\"unaffected\"},{\"version\":\"6.7.10\",\"lessThanOrEqual\":\"6.8\",\"versionType\":\"custom\",\"status\":\"unaffected\"},{\"version\":\"6.8\",\"lessThanOrEqual\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]}]},{\"source\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"source": "Red Hat CSAF VEX",
"status": "final",
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"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-26852",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-26852.json",
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{\"status\": \"unaffected\", \"version\": \"6.7.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv6/route.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/31ea5bcc7d4cd1423de6be327a2c034725704136\"}, {\"url\": \"https://git.kernel.org/stable/c/664f9c647260cc9d68b4e31d9899530d89dd045e\"}, {\"url\": \"https://git.kernel.org/stable/c/79ce2e54cc0ae366f45516c00bf1b19aa43e9abe\"}, {\"url\": \"https://git.kernel.org/stable/c/cae3303257950d03ffec2df4a45e836f10d26c24\"}, {\"url\": \"https://git.kernel.org/stable/c/394334fe2ae3b9f1e2332b873857e84cb28aac18\"}, {\"url\": \"https://git.kernel.org/stable/c/ed883060c38721ed828061f6c0c30e5147326c9a\"}, {\"url\": \"https://git.kernel.org/stable/c/61b34f73cdbdb8eaf9ea12e9e2eb3b29716c4dda\"}, {\"url\": \"https://git.kernel.org/stable/c/685f7d531264599b3f167f1e94bbd22f120e5fab\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/ipv6: avoid possible UAF in ip6_route_mpath_notify()\\n\\nsyzbot found another use-after-free in ip6_route_mpath_notify() [1]\\n\\nCommit f7225172f25a (\\\"net/ipv6: prevent use after free in\\nip6_route_mpath_notify\\\") was not able to fix the root cause.\\n\\nWe need to defer the fib6_info_release() calls after\\nip6_route_mpath_notify(), in the cleanup phase.\\n\\n[1]\\nBUG: KASAN: slab-use-after-free in rt6_fill_node+0x1460/0x1ac0\\nRead of size 4 at addr ffff88809a07fc64 by task syz-executor.2/23037\\n\\nCPU: 0 PID: 23037 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-01035-gea7f3cfaa588 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106\\n print_address_description mm/kasan/report.c:377 [inline]\\n print_report+0x167/0x540 mm/kasan/report.c:488\\n kasan_report+0x142/0x180 mm/kasan/report.c:601\\n rt6_fill_node+0x1460/0x1ac0\\n inet6_rt_notify+0x13b/0x290 net/ipv6/route.c:6184\\n ip6_route_mpath_notify net/ipv6/route.c:5198 [inline]\\n ip6_route_multipath_add net/ipv6/route.c:5404 [inline]\\n inet6_rtm_newroute+0x1d0f/0x2300 net/ipv6/route.c:5517\\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x221/0x270 net/socket.c:745\\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\\n ___sys_sendmsg net/socket.c:2638 [inline]\\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\\n do_syscall_64+0xf9/0x240\\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\\nRIP: 0033:0x7f73dd87dda9\\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f73de6550c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\\nRAX: ffffffffffffffda RBX: 00007f73dd9ac050 RCX: 00007f73dd87dda9\\nRDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005\\nRBP: 00007f73dd8ca47a R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 000000000000006e R14: 00007f73dd9ac050 R15: 00007ffdbdeb7858\\n \u003c/TASK\u003e\\n\\nAllocated by task 23037:\\n kasan_save_stack mm/kasan/common.c:47 [inline]\\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\\n poison_kmalloc_redzone mm/kasan/common.c:372 [inline]\\n __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389\\n kasan_kmalloc include/linux/kasan.h:211 [inline]\\n __do_kmalloc_node mm/slub.c:3981 [inline]\\n __kmalloc+0x22e/0x490 mm/slub.c:3994\\n kmalloc include/linux/slab.h:594 [inline]\\n kzalloc include/linux/slab.h:711 [inline]\\n fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155\\n ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3758\\n ip6_route_multipath_add net/ipv6/route.c:5298 [inline]\\n inet6_rtm_newroute+0x744/0x2300 net/ipv6/route.c:5517\\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\\n sock_sendmsg_nosec net/socket.c:730 [inline]\\n __sock_sendmsg+0x221/0x270 net/socket.c:745\\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\\n ___sys_sendmsg net/socket.c:2638 [inline]\\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\\n do_syscall_64+0xf9/0x240\\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\\n\\nFreed by task 16:\\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+0x4e/0x60 mm/kasan/generic.c:640\\n poison_slab_object+0xa6/0xe0 m\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.310\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.272\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.213\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.152\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.82\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.22\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.10\", \"versionStartIncluding\": \"4.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"4.11\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T11:27:48.147Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-26852\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:27:48.147Z\", \"dateReserved\": \"2024-02-19T14:20:24.183Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-17T10:17:15.923Z\", \"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.
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.
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.
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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.
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