Race condition in Linux kernel - CVE-2026-46028
Published: May 28, 2026
Vulnerability identifier: #VU132463
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-2026-46028
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 improper state management in the algif_aead AF_ALG AEAD request handling when processing asynchronous AEAD AIO requests. A local user can trigger concurrent socket activity to cause a denial of service.
The issue arises because in-flight operations depend on a mutable socket-wide IV buffer that can be changed before the original request completes.
How to mitigate CVE-2026-46028
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/08ea39a556ecd39b33c2b4888861001c6706a62e
- https://git.kernel.org/stable/c/3d72f8c6490dc79210b64270740cb2a8619361a4
- https://git.kernel.org/stable/c/46fdb39e83227b5d39f7c934a0947ea913f13c18
- https://git.kernel.org/stable/c/5aa58c3a572b3e3b6c786953339f7978b845cc52
- https://git.kernel.org/stable/c/a920cabdb0b7cf1f4e11a20524253ae5bd09092b
- https://git.kernel.org/stable/c/c2138c9bd02af19e0b407376140cd5435b0d81da
- https://git.kernel.org/stable/c/ebc235675f24b0e3f8bc92b8419471d42f837d8f
- https://git.kernel.org/stable/c/fa0fcec9b49d58e71df7ede91ecd86855f608e85