SB20260507166 - Improper resource shutdown or release in Linux kernel erofs

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-43179)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the EROFS image handling logic when processing a crafted metabox-enabled image with metadata compression enabled. A local user can supply a specially crafted EROFS image to cause a denial of service.

The issue leads to folio reference leaks and does not cause system crashes or other severe issues.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/041b5163bb9b2e81050bcd885b3373bf2f42d5f5
• https://git.kernel.org/stable/c/56e4a84220045b6af0f1efc11825b39217c7decf
• https://git.kernel.org/stable/c/643575d5a4f24b23b0c54aa20aa74a4abed8ff5e