CVEvulnerability

CVE-2023-52619

5.5 MEDIUM Published 2024-03-18 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-03-18
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: pstore/ram: Fix crash when setting number of cpus to an odd number When the number of cpu cores is adjusted to 7 or other odd numbers, the zone size will become an odd number. The address of the zone will become: addr of zone0 = BASE addr of zone1 = BASE + zone_size addr of zone2 = BASE + zone_size*2 ... The address of zone1/3/5/7 will be mapped to non-alignment va. Eventually crashes will occur when accessing these va. So, use ALIGN_DOWN() to make sure the zone size is even to avoid this bug.

Affected configurations

• linux linux kernel (< 4.19.307) • linux linux kernel (>= 4.20 < 5.4.269) • linux linux kernel (>= 5.5 < 5.10.210) • linux linux kernel (>= 5.11 < 5.15.149) • linux linux kernel (>= 5.16 < 6.1.77) • linux linux kernel (>= 6.2 < 6.6.16) • linux linux kernel (>= 6.7 < 6.7.4) • debian debian linux 10.0

References