CVE-2025-38358: Linux kernel · Race Condition
Source GCVE Database
Not known to be exploited · CVSS 4.7 Medium.
Data as of 13 Nov 2026, 20:12 UTC
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 25 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
AI-suggested
Until a fix is available, avoid unmounting Btrfs filesystems under heavy asynchronous reclaim workloads or kernel versions including the problematic commit. Monitor vendor channels for updates and apply kernel updates once a fix is released.
Description
CVE-2025-38358 is a race condition vulnerability in the Linux kernel's Btrfs filesystem. It involves a timing issue between the asynchronous reclaim worker and the close_ctree() function, which can cause an assertion failure when adding a delayed inode put (iput) after a specific filesystem state flag is set. This flaw was introduced by a recent commit adding extra validation for delayed iputs. The vulnerability has a medium severity score and impacts system stability by causing kernel warnings and potential crashes.