SB20240531354 - NULL pointer dereference in Linux kernel cxl core driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531354
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2023-52849)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the cxl_memdev_unregister() function in drivers/cxl/core/memdev.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/20bd0198bebdd706bd4614b3933ef70d7c19618f
- https://git.kernel.org/stable/c/7c7371b41a14e86f53e7dbe5baa7b1d3e0ab324b
- https://git.kernel.org/stable/c/cad22a757029c3a1985c221a2d4a6491ad4035ae
- https://git.kernel.org/stable/c/0ca074f7d788627a4e0b047ca5fbdb5fc567220c
- https://git.kernel.org/stable/c/88d3917f82ed4215a2154432c26de1480a61b209
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.139
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.63
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7