CVE-2023-52619

MediumCVSS 5.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
LinuxLinux>= de83209249d64bad993f25d3ea4bba57683e2e2e, < 8b69c30f4e8b69131d92096cb296dc1f217101e4; >= de83209249d64bad993f25d3ea4bba57683e2e2e, < e9f6ac50890104fdf8194f2865680689239d30fb; >= de83209249d64bad993f25d3ea4bba57683e2e2e, < a63e48cd835c34c38ef671d344cc029b1ea5bf10; >= de83209249d64bad993f25d3ea4bba57683e2e2e, < 2a37905d47bffec61e95d99f0c1cc5dc6377956c; >= de83209249d64bad993f25d3ea4bba57683e2e2e, < 75b0f71b26b3ad833c5c0670109c0af6e021e86a; >= de83209249d64bad993f25d3ea4bba57683e2e2e, < 0593cfd321df9001142a9d2c58d4144917dff7ee; >= de83209249d64bad993f25d3ea4bba57683e2e2e, < cd40e43f870cf21726b22487a95ed223790b3542; >= de83209249d64bad993f25d3ea4bba57683e2e2e, < d49270a04623ce3c0afddbf3e984cb245aa48e9c
LinuxLinux4.10

References

Timeline

Published
Mar 18, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2023-52619: Medium severity, CVSS 5.5 | Vulnix