CVE-2023-52619

MEDIUM

Linux Kernel < 4.19.307 - Denial of Service via pstore/ram Odd CPU Count Zone Alignment

Title source: llm
STIX 2.1

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.

References (10)

Core 10
Core References

Scores

CVSS v3 5.5
EPSS 0.0024
EPSS Percentile 15.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (27)
debian/debian_linux 10.0
linux/Kernel 4.10.0 - 4.19.307linux
linux/Kernel 4.20.0 - 5.4.269linux
linux/Kernel 5.11.0 - 5.15.149linux
linux/Kernel 5.16.0 - 6.1.77linux
linux/Kernel 5.5.0 - 5.10.210linux
linux/Kernel 6.2.0 - 6.6.16linux
linux/Kernel 6.7.0 - 6.7.4linux
Linux/Linux < 4.10
Linux/Linux 4.10
... and 17 more
Published Mar 18, 2024
Tracked Since Feb 18, 2026