CVE-2026-46077 crypto: atmel-tdes - fix DMA sync direction
Incorrect DMA synchronization in the Atmel TDES driver may expose stale cache data to the CPU on non-coherent platforms.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-46077?
CVE-2026-46077 is a medium-severity vulnerability in Linux kernel, published on 27 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
crypto: atmel-tdes - fix DMA sync direction
Before DMA output is consumed by the CPU, ->dma_addr_out must be synced with dma_sync_single_for_cpu() instead of dma_sync_single_for_device(). Using the wrong direction can return stale cache data on non-coherent platforms.
Which versions are affected by CVE-2026-46077?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46077?
Apply the vendor's patch.
Is CVE-2026-46077 being exploited?
There is no known exploitation of CVE-2026-46077 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-88529, BELL-CVE-2026-46077, DEBIAN-CVE-2026-46077, GHSA-7h5h-c58v-48cq, ROOT-OS-DEBIAN-11-CVE-2026-46077, ROOT-OS-DEBIAN-12-CVE-2026-46077 and 3 more.