Improper resource shutdown or release in Linux kernel - CVE-2026-43183
Published: May 7, 2026
Vulnerability identifier: #VU130559
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2026-43183
CWE-ID: CWE-404
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 improper resource shutdown or release in cx25821_dev_setup() when handling a failed ioremap() operation after acquiring a memory region. A local user can trigger the vulnerable code path to cause a denial of service.
How to mitigate CVE-2026-43183
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/071bfc6e723aabbbf08f0d439fb913cd01eb8de2
- https://git.kernel.org/stable/c/4010e596d23cda6de65acb14f7fd4ce8289f1d49
- https://git.kernel.org/stable/c/68cd8ac994cac38a305200f638b30e13c690753b
- https://git.kernel.org/stable/c/80ce3797dc99dae4ce8b939626b891c9eb85139f
- https://git.kernel.org/stable/c/9f1c926248bde95a77ca104ab525467470607836
- https://git.kernel.org/stable/c/b7210170b10e2d17f7a4f6b9d39cc092442db860
- https://git.kernel.org/stable/c/e220ec4c4596d634685b8a08d79ad876a720b466
- https://git.kernel.org/stable/c/f7759eb6738ee9fc296f6ab1705c6809947976f3