#VU90783 Improper locking in Linux kernel - CVE-2024-26794
Published: June 3, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90783
Vulnerability risk: Low
CVSSv4.0: 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-2024-26794
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the emit_fiemap_extent() function in fs/btrfs/extent_io.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/d43f8e58f10a44df8c08e7f7076f3288352cd168
- https://git.kernel.org/stable/c/31d07a757c6d3430e03cc22799921569999b9a12
- https://git.kernel.org/stable/c/a1a4a9ca77f143c00fce69c1239887ff8b813bec
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8