Improper resource shutdown or release in Linux kernel - CVE-2026-43283
Published: May 7, 2026
Vulnerability identifier: #VU130427
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-2026-43283
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 management in dma_free_coherent() in the ec_bhf ethernet driver when handling an error path during buffer cleanup. A local user can trigger the error path to cause a denial of service.
How to mitigate CVE-2026-43283
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/0f589ee54fd6d76d3f75e745f7f12c64cbd749e5
- https://git.kernel.org/stable/c/1b1371cd4032ae859838ebc74215f569987bb197
- https://git.kernel.org/stable/c/1b1d3c5d58a80a19d017a409aa2308162bab5bbf
- https://git.kernel.org/stable/c/1e300c33ef3cc544c2b9c693778fe9490cfe9184
- https://git.kernel.org/stable/c/7e54ff938bebb173822b4c38b33fc164c1cabf92
- https://git.kernel.org/stable/c/8320727be7ff704e07c87624efc2a4a75f54b3ce
- https://git.kernel.org/stable/c/accd0599bc8e73b962247c6c6c70ca7aa1f8e8d0
- https://git.kernel.org/stable/c/ffe68c3766997d82e9ccaf1cdbd47eba269c4aa2