Use-after-free in Linux kernel - CVE-2024-46845
Published: September 30, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU97780
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-46845
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the this_cpu_tmr_var() and timerlat_fd_release() functions in kernel/trace/trace_osnoise.c. A local user can escalate privileges on the system.
How to mitigate CVE-2024-46845
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/8c72f0b2c45f21cb8b00fc37f79f632d7e46c2ed
- https://git.kernel.org/stable/c/8a9d0d405159e9c796ddf771f7cff691c1a2bc1e
- https://git.kernel.org/stable/c/e6a53481da292d970d1edf0d8831121d1c5e2f0d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.51