Improper locking in Linux kernel - CVE-2024-27080

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Main Vulnerability Database Vulnerabilities #VU90766

Improper locking in Linux kernel - CVE-2024-27080

Published: June 3, 2024 / Updated: May 14, 2025


Vulnerability identifier: #VU90766
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-2024-27080
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the try_release_extent_state(), flush_fiemap_cache(), emit_fiemap_extent(), fiemap_search_slot(), fiemap_process_hole(), extent_fiemap(), i_size_read() and unlock_extent() functions in fs/btrfs/extent_io.c. A local user can perform a denial of service (DoS) attack.


How to mitigate CVE-2024-27080

Install update from vendor's website.

Sources