CVE-2025-38382

MEDIUM

Linux Kernel - Use-After-Free in Btrfs Extref Log Replay

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix iteration of extrefs during log replay At __inode_add_ref() when processing extrefs, if we jump into the next label we have an undefined value of victim_name.len, since we haven't initialized it before we did the goto. This results in an invalid memory access in the next iteration of the loop since victim_name.len was not initialized to the length of the name of the current extref. Fix this by initializing victim_name.len with the current extref's name length.

Scores

CVSS v3 5.5
EPSS 0.0015
EPSS Percentile 4.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-908
Status published
Products (19)
debian/debian_linux 11.0
linux/Kernel < 6.1.144linux
linux/Kernel 6.2.0 - 6.12.37linux
linux/Kernel 6.7.0 - 6.15.6linux
Linux/Linux < 6.2
Linux/Linux 1cf474cd474bc5d3ef63086ffd009a87a5b7bb2e - 539969fc472886a1d63565459514d47e27fef461
Linux/Linux 6.1.144 - 6.1.*
Linux/Linux 6.1.57 - 6.1.144
Linux/Linux 6.12.37 - 6.12.*
Linux/Linux 6.15.6 - 6.15.*
... and 9 more
Published Jul 25, 2025
Tracked Since Feb 18, 2026