#VU104485 Use-after-free in Linux kernel - CVE-2022-49215
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104485
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-2022-49215
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 EXPORT_SYMBOL(), xsk_generic_xmit(), __xsk_sendmsg(), xsk_no_wakeup(), xsk_sendmsg(), xsk_recvmsg(), xsk_poll() and xsk_unbind_dev() functions in net/xdp/xsk.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/18b1ab7aa76bde181bdb1ab19a87fa9523c32f21
- https://git.kernel.org/stable/c/8a2dea162b92c322f3e42eae0c4a74b8d20aa7a9
- https://git.kernel.org/stable/c/ad7219cd8751bd258b9d1e69ae0654ec00f71875
- https://git.kernel.org/stable/c/d1579253ffce39986e7a6ab757ac93b2680a665f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.19