Improper synchronization in Linux kernel - CVE-2026-46077
Published: May 27, 2026
Vulnerability identifier: #VU132405
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-46077
CWE-ID: CWE-662
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 disclose sensitive information.
The vulnerability exists due to improper synchronization in atmel-tdes DMA output handling when processing cryptographic operations. A local user can trigger DMA output processing to disclose sensitive information.
This can result in stale cache data being returned on non-coherent platforms.
How to mitigate CVE-2026-46077
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/12a0adfe498cd5d87e6365d7ca5f6b3eed79e523
- https://git.kernel.org/stable/c/5281e6e2302362f6b75b70cbfe4098d2a25dafd9
- https://git.kernel.org/stable/c/863d11b3927703ad95077c81a8a6489c5c7872f7
- https://git.kernel.org/stable/c/b5f5df801d161ba244f391519cbff2f4e5c6edc2
- https://git.kernel.org/stable/c/c8a9a647532f5c2a04180352693215e24e9dba03