CVE-2025-21679

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

btrfs: add the missing error handling inside get_canonical_dev_path

Inside function get_canonical_dev_path(), we call d_path() to get the final device path.

But d_path() can return error, and in that case the next strscpy() call will trigger an invalid memory access.

Add back the missing error handling for d_path().

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
LinuxLinux>= 5d261f60b5c82ba1e4b5555252e1c90c43d96015, < d0fb5741932b831eded49bfaaf33353e96200d6d; >= 7e06de7c83a746e58d4701e013182af133395188, < fe4de594f7a2e9bc49407de60fbd20809fad4192
LinuxLinux>= 6.12.5, < 6.12.11

References

Timeline

Published
Jan 31, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2025-21679: Medium severity, CVSS 5.5 | Vulnix