CVE-2025-38382

btrfs: fix iteration of extrefs during log replay

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.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/539969fc472886a1d63565459514d47e27fef461
https://git.kernel.org/stable/c/2d11d274e2e1d7c79e2ca8461ce3ff3a95c11171
https://git.kernel.org/stable/c/7ac790dc2ba00499a8d671d4a24de4d4ad27e234
https://git.kernel.org/stable/c/aee57a0293dca675637e5504709f9f8fd8e871be
https://git.kernel.org/stable/c/54a7081ed168b72a8a2d6ef4ba3a1259705a2926

Frequently Asked Questions

What is the severity of CVE-2025-38382?: CVE-2025-38382 has not yet been assigned a CVSS score.
How to fix CVE-2025-38382?: To fix CVE-2025-38382, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-38382 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-38382 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-38382?: CVE-2025-38382 affects Linux Linux, Linux Linux.

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