Back to Database
Status published
Unknown
CVE-2025-21945
ksmbd: fix use-after-free in smb2_lock
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-21945
Credits & Attribution
No credits recorded in the NVD database.
References
- https://git.kernel.org/stable/c/410ce35a2ed6d0e114132bba29af49b69880c8c7
- https://git.kernel.org/stable/c/8573571060ca466cbef2c6f03306b2cc7b883506
- https://git.kernel.org/stable/c/a0609097fd10d618aed4864038393dd75131289e
- https://git.kernel.org/stable/c/636e021646cf9b52ddfea7c809b018e91f2188cb
- https://git.kernel.org/stable/c/84d2d1641b71dec326e8736a749b7ee76a9599fc
More from Linux
View All →CVE-2025-71315
drm/vkms: Convert to DRM's vblank timer
Unknown
0
CVE-2025-71314
drm/panthor: Recover from panthor_gpu_flush_caches() failures
Unknown
0
CVE-2025-71313
PCI: endpoint: Add missing NULL check for alloc_workqueue()
Unknown
0
CVE-2025-71312
fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()
Unknown
0
CVE-2025-71311
fs/ntfs3: Initialize new folios before use
Unknown
0
Affected Vendor
Linux
View all reports →Affected Software
Linux
Vulnerable Versions:
0626e6641f6b467447c81dd7678a69c66f7746cf, 5.15, 0, 6.1.131, 6.6.83, 6.12.19, 6.13.7, 6.14
Timeline
Official Publish:
April 1st, 2025
Last Modified:
May 11th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.