SB2024071736 - Use-after-free in Linux kernel misc driver
Published: July 17, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024071736
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-2022-48821)
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_dmabuf_alloc() 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/4e6fd2b5fcf8e7119305a6042bd92e7f2b9ed215
- https://git.kernel.org/stable/c/a5ce7ee5fcc07583159f54ab4af5164de00148f5
- https://git.kernel.org/stable/c/e4382d0a39f9a1e260d62fdc079ddae5293c037d
- https://git.kernel.org/stable/c/76f85c307ef9f10aa2cef1b1d5ee654c1f3345fc
- https://git.kernel.org/stable/c/46963e2e0629cb31c96b1d47ddd89dc3d8990b34
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.101
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.24
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.180