Detections
Analytics
CVE-2026-43330
high
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: caam - fix overflow on long hmac keys When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The copying is performed using kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy.
References
https://git.kernel.org/stable/c/cebc5ebd958346195b77f42d0cd5141b4e448fae
https://git.kernel.org/stable/c/c2fb4984fe09fc176fe4c12d5e3edf626df6511d
https://git.kernel.org/stable/c/aa545df011338df13f0833fc1fabcb15c0521959
https://git.kernel.org/stable/c/80688afb9c35b3934ce2d6be9973758915e2e0ef
https://git.kernel.org/stable/c/31022cfde5235c45fa765f0aabeff5f0652852f2