CVE-2026-23126
- Source
- https://cve.org/CVERecord?id=CVE-2026-23126
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23126.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-23126
- Downstream
- Published
- 2026-02-14T15:09:55.552Z
- Modified
- 2026-02-14T20:16:50.050589Z
- Summary
- netdevsim: fix a race issue related to the operation on bpf_bound_progs list
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
netdevsim: fix a race issue related to the operation on bpfboundprogs list
The netdevsim driver lacks a protection mechanism for operations on the bpfboundprogs list. When the nsimbpfcreateprog() performs listaddtail, it is possible that nsimbpfdestroyprog() is simultaneously performs list_del. Concurrent operations on the list may lead to list corruption and trigger a kernel crash as follows:
[ 417.290971] kernel BUG at lib/listdebug.c:62! [ 417.290983] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 417.290992] CPU: 10 PID: 168 Comm: kworker/10:1 Kdump: loaded Not tainted 6.19.0-rc5 #1 [ 417.291003] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 417.291007] Workqueue: events bpfprogfreedeferred [ 417.291021] RIP: 0010:__listdelentryvalidorreport+0xa7/0xc0 [ 417.291034] Code: a8 ff 0f 0b 48 89 fe 48 89 ca 48 c7 c7 48 a1 eb ae e8 ed fb a8 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 80 a1 eb ae e8 d9 fb a8 ff <0f> 0b 48 89 d1 48 c7 c7 d0 a1 eb ae 48 89 f2 48 89 c6 e8 c2 fb a8 [ 417.291040] RSP: 0018:ffffb16a40807df8 EFLAGS: 00010246 [ 417.291046] RAX: 000000000000006d RBX: ffff8e589866f500 RCX: 0000000000000000 [ 417.291051] RDX: 0000000000000000 RSI: ffff8e59f7b23180 RDI: ffff8e59f7b23180 [ 417.291055] RBP: ffffb16a412c9000 R08: 0000000000000000 R09: 0000000000000003 [ 417.291059] R10: ffffb16a40807c80 R11: ffffffffaf9edce8 R12: ffff8e594427ac20 [ 417.291063] R13: ffff8e59f7b44780 R14: ffff8e58800b7a05 R15: 0000000000000000 [ 417.291074] FS: 0000000000000000(0000) GS:ffff8e59f7b00000(0000) knlGS:0000000000000000 [ 417.291079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 417.291083] CR2: 00007fc4083efe08 CR3: 00000001c3626006 CR4: 0000000000770ee0 [ 417.291088] PKRU: 55555554 [ 417.291091] Call Trace: [ 417.291096] <TASK> [ 417.291103] nsimbpfdestroyprog+0x31/0x80 [netdevsim] [ 417.291154] __bpfprogoffloaddestroy+0x2a/0x80 [ 417.291163] bpfprogdevbounddestroy+0x6f/0xb0 [ 417.291171] bpfprogfreedeferred+0x18e/0x1a0 [ 417.291178] processonework+0x18a/0x3a0 [ 417.291188] worker_thread+0x27b/0x3a0 [ 417.291197] ? __pfxworkerthread+0x10/0x10 [ 417.291207] kthread+0xe5/0x120 [ 417.291214] ? __pfxkthread+0x10/0x10 [ 417.291221] retfrom_fork+0x31/0x50 [ 417.291230] ? __pfxkthread+0x10/0x10 [ 417.291236] retfromforkasm+0x1a/0x30 [ 417.291246] </TASK>
Add a mutex lock, to prevent simultaneous addition and deletion operations on the list.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23126.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/3f560cfc7706029294132482fff5d1bc7884b70d
- https://git.kernel.org/stable/c/68462ecc40ea8f780fb3c74ebfddd05506bb731b
- https://git.kernel.org/stable/c/b97d5eedf4976cc94321243be83b39efe81a0e15
- https://git.kernel.org/stable/c/d77379ca82efcb2fe563359cc795027d680410db
- https://git.kernel.org/stable/c/f1f9cfd2f46a73b7de2982d01be822eac3a0efaa
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23126.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-23126
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced31d3ad832948c75139b0e5b653912f7898a1d5d5Fixed3f560cfc7706029294132482fff5d1bc7884b70dFixedf1f9cfd2f46a73b7de2982d01be822eac3a0efaaFixedd77379ca82efcb2fe563359cc795027d680410dbFixed68462ecc40ea8f780fb3c74ebfddd05506bb731bFixedb97d5eedf4976cc94321243be83b39efe81a0e15