SB20260507187 - Missing Release of Resource after Effective Lifetime in Linux kernel erofs

Description

This security bulletin contains information about 1 vulnerability.

1) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-43154)

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

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 management in volume label handling when parsing a crafted EROFS image. A local user can supply a specially crafted filesystem image to cause a denial of service.

The issue leads to folio reference leaks and does not result in system crashes or other severe effects.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/3afa4da38802a4cba1c23848a32284e7e57b831b
• https://git.kernel.org/stable/c/8d8a878ef60801d867119b3df6a93e2982d62a71
• https://git.kernel.org/stable/c/d498bd168494ad4a4bce16192bfb9ce04ca19c9a