NULL pointer dereference in Linux kernel - CVE-2025-21658
Published: January 21, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU103122
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21658
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the scrub_find_fill_first_stripe() function in fs/btrfs/scrub.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-21658
Install update from vendor's website.