CVE-2025-37954

MEDIUM EPSS 4.4%
Published May 20, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 20, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: Avoid race in open_cached_dir with lease breaks A pre-existing valid cfid returned from find_or_create_cached_dir might race with a lease break, meaning open_cached_dir doesn't consider it valid, and thinks it's newly-constructed. This leaks a dentry reference if the allocation occurs before the queued lease break work runs. Avoid the race by extending holding the cfid_list_lock across find_or_create_cached_dir and when the result is checked.

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
4.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel* <6.6.91
linuxlinux_kernel*≥6.7  –  <6.12.29
linuxlinux_kernel*≥6.13  –  <6.14.7
linuxlinux_kernel6.15any
linuxlinux_kernel6.15any
linuxlinux_kernel6.15any
linuxlinux_kernel6.15any
linuxlinux_kernel6.15any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/2407265dc32bc8cc45b62a612c2a214ba9038e8b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2ed98e89ebc2e1bc73534dc3c18cb7843a889ff9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3ca02e63edccb78ef3659bebc68579c7224a6ca2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/571dcf3d27b24800c171aea7b5e04ff06d10e2e9
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2407265dc32bc8cc45b62a612c2a214ba9038e8b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2ed98e89ebc2e1bc73534dc3c18cb7843a889ff9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3ca02e63edccb78ef3659bebc68579c7224a6ca2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/571dcf3d27b24800c171aea7b5e04ff06d10e2e9
    Patch