Use-after-free in Linux kernel - CVE-2026-46208
Published: May 29, 2026
Vulnerability identifier: #VU132984
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-46208
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 cause a denial of service.
The vulnerability exists due to a use-after-free in tp_meter session handling during mesh teardown when processing tp_meter sessions as a mesh interface is being removed. A local user can trigger tp_meter activity during interface teardown to cause a denial of service.
How to mitigate CVE-2026-46208
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/03660dab86f93319178a24667f6998526dc4355d
- https://git.kernel.org/stable/c/26dfeee8db81354bfdade155f27f9e16510ad196
- https://git.kernel.org/stable/c/3d3cf6a7314aca4df0a6dde28ce784a2a30d0166
- https://git.kernel.org/stable/c/79bc0eaeef2c5797317bf2da8e3159a74d62ec47
- https://git.kernel.org/stable/c/8634c1dbd73adb74d40533ebb7e914efb82e71fb