CVE-2026-46019 crypto: atmel-aes - Fix 3-page memory leak in atmel_aes_buff_cleanup
A memory leak in the Atmel AES driver allows attackers to exhaust system memory, causing denial of service.
- 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-2026-46019?
CVE-2026-46019 is a medium-severity denial of service 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-aes - Fix 3-page memory leak in atmel_aes_buff_cleanup
atmel_aes_buff_init() allocates 4 pages using __get_free_pages() with ATMEL_AES_BUFFER_ORDER, but atmel_aes_buff_cleanup() frees only the first page using free_page(), leaking the remaining 3 pages. Use free_pages() with ATMEL_AES_BUFFER_ORDER to fix the memory leak.
Weakness: CWE-401
Which versions are affected by CVE-2026-46019?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46019?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-46019 being exploited?
There is no known exploitation of CVE-2026-46019 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-88481, BELL-CVE-2026-46019, DEBIAN-CVE-2026-46019, GHSA-ff85-hq6w-7g2w, ROOT-OS-DEBIAN-11-CVE-2026-46019, ROOT-OS-DEBIAN-12-CVE-2026-46019 and 3 more.