SB2024062220 - Use-after-free in Linux kernel hv driver
Published: June 22, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062220
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-2024-36909)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the vmbus_free_ring() function in drivers/hv/channel.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2f622008bf784a9f5dd17baa19223cc2ac30a039
- https://git.kernel.org/stable/c/82f9e213b124a7d2bb5b16ea35d570260ef467e0
- https://git.kernel.org/stable/c/a9212a4e2963a7fbe3864ba33dc551d4ad8d0abb
- https://git.kernel.org/stable/c/30d18df6567be09c1433e81993e35e3da573ac48
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.91
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.31
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.10