High severity8.8NVD Advisory· Published Apr 1, 2025· Updated Jul 30, 2026
CVE-2025-21945
CVE-2025-21945
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix use-after-free in smb2_lock
If smb_lock->zero_len has value, ->llist of smb_lock is not delete and flock is old one. It will cause use-after-free on error handling routine.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.15,<6.1.131
- cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: 5.15
Patches
Vulnerability mechanics
References
6- git.kernel.org/stable/c/410ce35a2ed6d0e114132bba29af49b69880c8c7nvdPatch
- git.kernel.org/stable/c/636e021646cf9b52ddfea7c809b018e91f2188cbnvdPatch
- git.kernel.org/stable/c/84d2d1641b71dec326e8736a749b7ee76a9599fcnvdPatch
- git.kernel.org/stable/c/8573571060ca466cbef2c6f03306b2cc7b883506nvdPatch
- git.kernel.org/stable/c/a0609097fd10d618aed4864038393dd75131289envdPatch
- lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlnvd
News mentions
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