CVEvulnerability

CVE-2023-52576

5.5 MEDIUM Published 2024-03-02 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-03-02
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer() The code calling ima_free_kexec_buffer() runs long after the memblock allocator has already been torn down, potentially resulting in a use after free in memblock_isolate_range(). With KASAN or KFENCE, this use after free will result in a BUG from the idle task, and a subsequent kernel panic. Switch ima_free_kexec_buffer() over to memblock_free_late() to avoid that bug.

Affected configurations

• linux linux kernel (>= 5.13 < 6.1.56) • linux linux kernel (>= 6.2 < 6.5.6) • linux linux kernel 6.6

Related

Weakness · CWE (1)

References