Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-90298
Published: September 18, 2026
Vulnerability identifier: #VU151181
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-2026-90298
CWE-ID: CWE-772
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to leak device references.
The vulnerability exists due to improper resource release in the sun8i_r40_tcon_tv_set_mux function when configuring the TCON TV multiplexer. A local user can trigger TCON TV multiplexer configuration to leak device references.
Affected software
Linux kernel
How to mitigate CVE-2026-90298
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/1ca06d47ac40bdcb63e4e528499bf531c6c3231b
- https://git.kernel.org/stable/c/31b54c92a49a2b40fcd59b0c8cf346b0b3fb288b
- https://git.kernel.org/stable/c/3eeb8545d5513defe935ce46a9824512f7a2bbd9
- https://git.kernel.org/stable/c/4fa22218c2351621d470d2d2ae4f6a2ac39ada94
- https://git.kernel.org/stable/c/8208832a38ff3d2560eb8a77a9d7a2f17d8ebcdc
- https://git.kernel.org/stable/c/ae08a67bca7817e37c16c1ec51bce7f2ff9aaf2c
- https://git.kernel.org/stable/c/b192f08480d63d3f5e46d35c91d4fccd4e703ca7
- https://git.kernel.org/stable/c/e6406726ee7f4deb1b9b32c1ad6a147ffd208bec