#VU115899 Use-after-free in Linux kernel - CVE-2022-50386
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115899
Vulnerability risk: Low
CVSSv4.0: 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-2022-50386
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
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_connect_create_rsp() function in net/bluetooth/l2cap_core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0c108cf3ad386e0084277093b55a351c49e0be27
- https://git.kernel.org/stable/c/11e40d6c0823f699d8ad501e48d1c3ae4be386cd
- https://git.kernel.org/stable/c/15fc21695eb606bdc5d483b92118ee42610a952d
- https://git.kernel.org/stable/c/35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f
- https://git.kernel.org/stable/c/6ffde6e03085874ae22263ff4cef4869f797e84f
- https://git.kernel.org/stable/c/7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45
- https://git.kernel.org/stable/c/843fc4e386dd84b806a7f07fb062d8c3a44e5364
- https://git.kernel.org/stable/c/d1e894f950ad48897d1a7cb05909ea29d8c3810e
- https://git.kernel.org/stable/c/d91fc2836562f299f34e361e089e9fe154da4f73
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.262