PT-2026-44292 · Linux · Linux Kernel

Syzbot · Published 2026-05-28 · Updated 2026-06-04 · CVE-2026-46169

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the hfsplus module where the hfs brec read() function fails to validate that the on-disk record size matches the expected size for the record type being read. When mounting a corrupted filesystem, the function may perform a partial read, leaving parts of the data structure uninitialized. This uninitialized data in tmp.thread.nodeName is subsequently copied by hfsplus cat build key uni() and used by hfsplus strcasecmp(), which triggers a memory error when the uninitialized bytes are used as array indices in case fold().

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use of Uninitialized Resource

Weakness Enumeration

CWE-908

Related Identifiers

CVE-2026-46169

ECHO-B4A5-7AE9-C01C

OPENSUSE-SU-2026:10954-1

Affected Products

Linux Kernel

References · 289

• https://osv.dev/vulnerability/UBUNTU-CVE-2026-46169 · Vendor Advisory
• https://git.kernel.org/stable/c/61a790974ff7e533acbceca06c7d02f22bf96d4d · Patch
• https://git.kernel.org/stable/c/b6b592275aeff184aa82fcf6abccd833fb71b393 · Patch
• https://cve.org/CVERecord?id=CVE-2026-46169 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-46169 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10954-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-46169 · Security Note
• https://ubuntu.com/security/CVE-2026-46169 · Vendor Advisory
• https://git.kernel.org/stable/c/c91bbd6193c70a02c50c22e0fb1f60c3c5bd053a · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-46169 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-46169 · Vendor Advisory
• https://git.kernel.org/stable/c/a420904450962a562ad053a41a53a27755021b48 · Patch
• https://git.kernel.org/stable/c/93e8d613f1a01b6637f387cc93f184cf7fb881d6 · Patch
• https://suse.com/security/cve/CVE-2026-46209 · Note
• https://suse.com/security/cve/CVE-2026-46129 · Note