CVE-2025-21945

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2025-21945
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21945.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21945
Downstream
Published
2025-04-01T15:41:08.471Z
Modified
2026-03-20T12:41:15.306396Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
ksmbd: fix use-after-free in smb2_lock
Details

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix use-after-free in smb2_lock

If smblock->zerolen has value, ->llist of smb_lock is not delete and flock is old one. It will cause use-after-free on error handling routine.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21945.json"
}
References

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
Introduced
0626e6641f6b467447c81dd7678a69c66f7746cf
Fixed
410ce35a2ed6d0e114132bba29af49b69880c8c7
Fixed
8573571060ca466cbef2c6f03306b2cc7b883506
Fixed
a0609097fd10d618aed4864038393dd75131289e
Fixed
636e021646cf9b52ddfea7c809b018e91f2188cb
Fixed
84d2d1641b71dec326e8736a749b7ee76a9599fc

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21945.json"