Use-after-free in Linux kernel - CVE-2024-56605
Published: December 30, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU102020
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-2024-56605
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 l2cap_sock_alloc() function in net/bluetooth/l2cap_sock.c. A local user can escalate privileges on the system.
How to mitigate CVE-2024-56605
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/61686abc2f3c2c67822aa23ce6f160467ec83d35
- https://git.kernel.org/stable/c/7c4f78cdb8e7501e9f92d291a7d956591bf73be9
- https://git.kernel.org/stable/c/8ad09ddc63ace3950ac43db6fbfe25b40f589dd6
- https://git.kernel.org/stable/c/a8677028dd5123e5e525b8195483994d87123de4
- https://git.kernel.org/stable/c/bb2f2342a6ddf7c04f9aefbbfe86104cd138e629
- https://git.kernel.org/stable/c/daa13175a6dea312a76099066cb4cbd4fc959a84
- https://git.kernel.org/stable/c/f6ad641646b67f29c7578dcd6c25813c7dcbf51e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.287