CVE-2026-97586
kernel: afs: Fix missing kunmap in afs_dir_search_bucket()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 25, 2026
Updated · October 7, 2026
Description
A flaw was found in the Linux kernel's AFS (Andrew File System) implementation. An error-handling path in the directory search mechanism fails to unmap a previously mapped memory block when an error occurs. A local user could trigger this flaw during directory lookup operations, causing a kernel memory mapping leak that may lead to system instability or a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime