Double free in Linux kernel - CVE-2026-98195
Published: October 7, 2026
Vulnerability identifier: #VU153829
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98195
CWE-ID: CWE-415
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to double free in the iwlegacy driver's broadcast station deallocation when handling an error during driver startup. A local user can toggle RF_KILL during driver startup to cause a denial of service.
Affected software
Linux kernel
Debian Linux
linux (Debian package)
Debian Linux
linux (Debian package)
How to mitigate CVE-2026-98195
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
linux (Debian package) - update to 6.12.113-1
linux (Debian package) - update to 6.12.113-1
External References
- https://git.kernel.org/stable/c/1d84c2a3de449aceb94ed79eaefecdf1bedb6468
- https://git.kernel.org/stable/c/275d474a4b4bd4e73b18b1452f12e78806a8843a
- https://git.kernel.org/stable/c/526fdd45548e22eee50ee1062abd88269d9f32e0
- https://git.kernel.org/stable/c/55d34422c0d91436983028fd3c1546a1c2bee55f
- https://git.kernel.org/stable/c/85d847ff71fe736cbc15ada321256818e630e205
- https://git.kernel.org/stable/c/a9176fe666af1730cab92350f9c8cf67ebf14439
- https://git.kernel.org/stable/c/b5526b780f8b297a76030410b96ba29153afb98f
- https://git.kernel.org/stable/c/c9a116d691364cd7f59d8329b395adcaf826d5c6