SB2026081723 - Deadlock in Linux kernel f2fs
Published: August 17, 2026
Security Bulletin ID
SB2026081723
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Deadlock (CVE-ID: CVE-2026-68460)
CWE-ID: CWE-833 - Deadlock
CVSSv4: 6.8 [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]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a deadlock condition in f2fs_balance_fs() when handling writeback and garbage collection on nearly exhausted f2fs filesystem space. A local user can trigger filesystem write activity to cause a denial of service.
The issue occurs when the f2fs filesystem space is nearly exhausted.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/162d57d8eb8440ad2d90469bf2c116abb04a9d33
- https://git.kernel.org/stable/c/345c1d1ff751104ebdc32c145be80de566c5150f
- https://git.kernel.org/stable/c/44480f7e3f8369671452c0d262831c51aa5a9c20
- https://git.kernel.org/stable/c/998536c96b6ad9d99cd85dea11452ab83dc7c88d
- https://git.kernel.org/stable/c/cf8b5937b7b258927ccca267995e13e76a07b38e
- https://git.kernel.org/stable/c/dd3114870771562036fdcf5abe813956f36d224d
- https://git.kernel.org/stable/c/e273116fbb6dfd7f027c0623e7c5109241be1919
- https://git.kernel.org/stable/c/f51db99287b5acf81513ece82a0c95eb5db008e3