Race condition in Linux kernel - CVE-2026-53086
Published: June 25, 2026
Vulnerability identifier: #VU135236
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-2026-53086
CWE-ID: CWE-362
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 a race condition in the bcmgenet_timeout handler when handling a transmit queue timeout. A local user can trigger a transmit queue timeout to cause a denial of service.
How to mitigate CVE-2026-53086
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/5393b2b5bee2ac51a0043dc7f4ac3475f053d08d
- https://git.kernel.org/stable/c/681fdfe823b4f1036ed50b58b8838c7917ea389c
- https://git.kernel.org/stable/c/7ce1c26aac3b318886a57425f64b522da7389153
- https://git.kernel.org/stable/c/c270e2bec3e55a716d25c35341091339457ac883
- https://git.kernel.org/stable/c/e8206538cbaf4f4068e99a4cb1138690a1e00499
- https://git.kernel.org/stable/c/e85b0c0a12e967930044608311471b665baa315c