CVE-2025-21944

MEDIUM EPSS 3.2%
Published Apr 1, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 1, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix bug on trap in smb2_lock If lock count is greater than 1, flags could be old value. It should be checked with flags of smb_lock, not flags. It will cause bug-on trap from locks_free_lock in error handling routine.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥5.15  –  <6.1.131
linuxlinux_kernel*≥6.2  –  <6.6.83
linuxlinux_kernel*≥6.7  –  <6.12.19
linuxlinux_kernel*≥6.13  –  <6.13.7
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/11e0e74e14f1832a95092f2c98ed3b99f57797ee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2b70e3ac79eacbdf32571f7af48dd81cdd957ca8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8994f0ce8259f812b4f4a681d8298c6ff682efaa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dbcd7fdd86f77529210fe8978154a81cd479844c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e26e2d2e15daf1ab33e0135caf2304a0cfa2744b
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/11e0e74e14f1832a95092f2c98ed3b99f57797ee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2b70e3ac79eacbdf32571f7af48dd81cdd957ca8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8994f0ce8259f812b4f4a681d8298c6ff682efaa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dbcd7fdd86f77529210fe8978154a81cd479844c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e26e2d2e15daf1ab33e0135caf2304a0cfa2744b
    Patch