SB2026102218 - Missing Release of Resource after Effective Lifetime in Linux kernel xfs scrub

Description

This security bulletin contains information about 1 vulnerability.

1) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-98448)

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

CVSSv4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a local privileged user to cause resource retention that may lead to a denial of service.

The vulnerability exists due to a missing inode reference release in the XFS orphanage directory creation function when changing the directory's ownership fails. A local privileged user can trigger the affected error path to leave an acquired inode reference unreleased, potentially causing resource exhaustion and a denial of service.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/1c32cdc986467eaffeedb6c5334852809555b82d
• https://git.kernel.org/stable/c/6a65a68097a1903988b256d5b367da7b0863a1d5
• https://git.kernel.org/stable/c/6b66b1a59df6c3f9b4ad9b39a32ca86170ade357
• https://git.kernel.org/stable/c/f813aefd9e09c8cda38a71580b6a01552d97cade