SB2024082153 - Use-after-free in Linux kernel misc driver
Published: August 21, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024082153
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-2022-48872)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the fastrpc_map_put() function in drivers/misc/fastrpc.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/556dfdb226ce1e5231d8836159b23f8bb0395bf4
- https://git.kernel.org/stable/c/b171d0d2cf1b8387c72c8d325c5d5746fa271e39
- https://git.kernel.org/stable/c/61a0890cb95afec5c8a2f4a879de2b6220984ef1
- https://git.kernel.org/stable/c/079c78c68714f7d8d58e66c477b0243b31806907
- https://git.kernel.org/stable/c/96b328d119eca7563c1edcc4e1039a62e6370ecb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.165
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.90
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.230
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2