#VU115889 Use-after-free in Linux kernel - CVE-2022-50408
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115889
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-2022-50408
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 brcmf_netdev_start_xmit() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/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/1613a7b24f1a7467cb727ba3ec77c9a808383560
- https://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02
- https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e
- https://git.kernel.org/stable/c/3f42faf6db431e04bf942d2ebe3ae88975723478
- https://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2
- https://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96
- https://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df
- https://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150