SB20260529127 - Use of Uninitialized Variable in Linux kernel hfsplus
Published: May 29, 2026
Security Bulletin ID
SB20260529127
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use of Uninitialized Variable (CVE-ID: CVE-2026-46169)
CWE-ID: CWE-457 - Use of Uninitialized Variable
CVSSv4: 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
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to uninitialized memory use in hfs_brec_read() and catalog record handling in the hfsplus filesystem code when mounting a corrupted filesystem. A local user can mount a specially crafted filesystem image to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/61a790974ff7e533acbceca06c7d02f22bf96d4d
- https://git.kernel.org/stable/c/93e8d613f1a01b6637f387cc93f184cf7fb881d6
- https://git.kernel.org/stable/c/a420904450962a562ad053a41a53a27755021b48
- https://git.kernel.org/stable/c/b6b592275aeff184aa82fcf6abccd833fb71b393
- https://git.kernel.org/stable/c/c91bbd6193c70a02c50c22e0fb1f60c3c5bd053a