CVE-2025-38659

MEDIUM EPSS 3.9%
Published Aug 22, 202510mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 22, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: gfs2: No more self recovery When a node withdraws and it turns out that it is the only node that has the filesystem mounted, gfs2 currently tries to replay the local journal to bring the filesystem back into a consistent state. Not only is that a very bad idea, it has also never worked because gfs2_recover_func() will refuse to do anything during a withdraw. However, before even getting to this point, gfs2_recover_func() dereferences sdp->sd_jdesc->jd_inode. This was a use-after-free before commit 04133b607a78 ("gfs2: Prevent double iput for journal on error") and is a NULL pointer dereference since then. Simply get rid of self recovery to fix that.

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
3.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.7  –  <6.6.102
linuxlinux_kernel*≥6.7  –  <6.12.42
linuxlinux_kernel*≥6.13  –  <6.15.10
linuxlinux_kernel*≥6.16  –  <6.16.1

References 7

  • git.kernel.org https://git.kernel.org/stable/c/1a91ba12abef628b43cada87478328274d988e88
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6784367b2f3cd7b89103de35764f37f152590dbd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/69cf5699a402ee7ae1be53954dc2ae652c0a053c
  • git.kernel.org https://git.kernel.org/stable/c/6ebe17b359bead383581f729e43f591c1c36e159
  • git.kernel.org https://git.kernel.org/stable/c/97c94c7dbddc34d353c83b541b3decabf98d04af
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/deb016c1669002e48c431d6fd32ea1c20ef41756
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f5426ffbec971a8f7346a57392d3a901bdee5a9b
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1a91ba12abef628b43cada87478328274d988e88
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6784367b2f3cd7b89103de35764f37f152590dbd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97c94c7dbddc34d353c83b541b3decabf98d04af
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/deb016c1669002e48c431d6fd32ea1c20ef41756
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f5426ffbec971a8f7346a57392d3a901bdee5a9b
    Patch