SB20240620169 - Use-after-free in Linux kernel infiniband core driver
Published: June 20, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240620169
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-48726)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ucma_alloc_ctx(), ucma_cleanup_multicast(), ucma_process_join(), mutex_unlock() and ucma_leave_multicast() functions in drivers/infiniband/core/ucma.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/75c610212b9f1756b9384911d3a2c347eee8031c
- https://git.kernel.org/stable/c/2923948ffe0835f7114e948b35bcc42bc9b3baa1
- https://git.kernel.org/stable/c/ee2477e8ccd3d978eeac0dc5a981b286d9bb7b0a
- https://git.kernel.org/stable/c/36e8169ec973359f671f9ec7213547059cae972e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.99
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17