Resource exhaustion in Linux kernel - CVE-2026-31467
Published: April 24, 2026
Vulnerability identifier: #VU127685
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-2026-31467
CWE-ID: CWE-400
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 cause a denial of service.
The vulnerability exists due to improper resource management in the erofs bio completion path when processing decompression in process context. A local user can trigger memory pressure during this operation to cause a denial of service.
The issue can lead to a deadlock when memory reclaim causes swap I/O through submit_bio_wait.
How to mitigate CVE-2026-31467
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/378949f46e897204384f3f5f91e42e93e3f87568
- https://git.kernel.org/stable/c/5c8ecdcfbfb0b0c6a82a4ebadc1ddea61609b902
- https://git.kernel.org/stable/c/c23df30915f83e7257c8625b690a1cece94142a0
- https://git.kernel.org/stable/c/d6565ea662e17d45a577184b0011bd69de22dc2b
- https://git.kernel.org/stable/c/d9d8360cb66e3b599d89d2526e7da8b530ebf2ff
- https://git.kernel.org/stable/c/da40464064599eefe78749f75cd2bba371044c04
- https://git.kernel.org/stable/c/e83e20b82859f0588e9a52a6fa9fea704a2061cf