CVE-2025-22072

MEDIUM EPSS 6.2%
Published Apr 16, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 16, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: spufs: fix gang directory lifetimes prior to "[POWERPC] spufs: Fix gang destroy leaks" we used to have a problem with gang lifetimes - creation of a gang returns opened gang directory, which normally gets removed when that gets closed, but if somebody has created a context belonging to that gang and kept it alive until the gang got closed, removal failed and we ended up with a leak. Unfortunately, it had been fixed the wrong way. Dentry of gang directory was no longer pinned, and rmdir on close was gone. One problem was that failure of open kept calling simple_rmdir() as cleanup, which meant an unbalanced dput(). Another bug was in the success case - gang creation incremented link count on root directory, but that was no longer undone when gang got destroyed. Fix consists of * reverting the commit in question * adding a counter to gang, protected by ->i_rwsem of gang directory inode. * having it set to 1 at creation time, dropped in both spufs_dir_close() and spufs_gang_close() and bumped in spufs_create_context(), provided that it's not 0. * using simple_recursive_removal() to take the gang directory out when counter reaches zero.

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
6.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥2.6.23  –  <6.1.134
linuxlinux_kernel*≥6.2  –  <6.6.87
linuxlinux_kernel*≥6.7  –  <6.12.23
linuxlinux_kernel*≥6.13  –  <6.13.11
linuxlinux_kernel*≥6.14  –  <6.14.2
linuxlinux_kernel2.6.22any
linuxlinux_kernel2.6.22any
linuxlinux_kernel2.6.22any
linuxlinux_kernel2.6.22any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/029d8c711f5e5fe8cf63e8a4a1a140a06e224e45
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/324f280806aab28ef757aecc18df419676c10ef8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/880e7b3da2e765c1f90c94c0539be039e96c7062
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/903733782f3ae28a2f7fe4dfb47c7fe3e079a528
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c134deabf4784e155d360744d4a6a835b9de4dd4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fc646a6c6d14b5d581f162a7e32999f789e3a3ac
    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/029d8c711f5e5fe8cf63e8a4a1a140a06e224e45
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/324f280806aab28ef757aecc18df419676c10ef8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/880e7b3da2e765c1f90c94c0539be039e96c7062
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/903733782f3ae28a2f7fe4dfb47c7fe3e079a528
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c134deabf4784e155d360744d4a6a835b9de4dd4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fc646a6c6d14b5d581f162a7e32999f789e3a3ac
    Patch