CVE-2026-63954

kernel: hpfs: fix a crash if hpfs_map_dnode_bitmap fails

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Severity

Moderate

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · July 19, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel's High Performance File System (HPFS) component. This vulnerability occurs when the hpfs_map_dnode_bitmap function fails, leading to the system attempting to release an uninitialized buffer. An attacker could potentially trigger this condition, resulting in a system crash and causing a Denial of Service (DoS).

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-824 · Access of Uninitialized Pointer