SB2025091661 - Memory leak in Linux kernel misc cxl driver
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091661
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) Memory leak (CVE-ID: CVE-2022-50311)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the cxl_calc_capp_routing() function in drivers/misc/cxl/pci.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/1d09697ff22908ae487fc8c4fbde1811732be523
- https://git.kernel.org/stable/c/2d7b6580384e6d65419933ddc525bd176095da54
- https://git.kernel.org/stable/c/651e8bc9d0418c20a1989b7c078c64c2a6346fa3
- https://git.kernel.org/stable/c/6a310e8db5409676b4b3e6c1f54dff174e4fd04d
- https://git.kernel.org/stable/c/81c8bbf5b2b5f0c8030fff1716c00849cda8571a
- https://git.kernel.org/stable/c/c9bebc503881c1391f6c4f820134884adecf1519
- https://git.kernel.org/stable/c/ee870f72465015327ad96204b0e92450d04870cd
- https://git.kernel.org/stable/c/f2d60f6ba173cded65081cee690b67802395a479
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229