Improper resource shutdown or release in Linux kernel - CVE-2026-72258
Published: August 16, 2026
Vulnerability identifier: #VU143185
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-72258
CWE-ID: CWE-404
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 improper resource shutdown or release in the MT8183 AFE probe in sound/soc/mediatek/mt8183/mt8183-afe-pcm.c when handling device probe failures or driver removal. A local user can trigger device initialization and cleanup conditions to cause a denial of service.
The issue arises when reserved memory is assigned through of_reserved_mem_device_init() and the assignment is not released consistently on cleanup.
Affected software
Linux kernel
How to mitigate CVE-2026-72258
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/03009465312ca35137f84cf84c95686137608deb
- https://git.kernel.org/stable/c/48b6c39883637b444c2f976e7b8ca964b1889561
- https://git.kernel.org/stable/c/bee65e00c0924ebecf97718d95dcf4a05ee36471
- https://git.kernel.org/stable/c/e2d05ab62614162797fee28925279d9e8c2f200a
- https://git.kernel.org/stable/c/e42d8322b67f21493a832ec338aad1c93bd01ea7