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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
199354d7fb6eaa2cc5bb650af0bca624baffee35 to < 31022cfde5235c45fa765f0aabeff5f0652852f2affected199354d7fb6eaa2cc5bb650af0bca624baffee35 to < c2fb4984fe09fc176fe4c12d5e3edf626df6511daffected199354d7fb6eaa2cc5bb650af0bca624baffee35 to < aa545df011338df13f0833fc1fabcb15c0521959affected199354d7fb6eaa2cc5bb650af0bca624baffee35 to < cebc5ebd958346195b77f42d0cd5141b4e448faeaffected199354d7fb6eaa2cc5bb650af0bca624baffee35 to < 80688afb9c35b3934ce2d6be9973758915e2e0efaffected
Linux Linux
Default version status: affected
6.3affected0 to < 6.3unaffected6.6.134 to ≤ 6.6.*unaffected6.12.81 to ≤ 6.12.*unaffected6.18.22 to ≤ 6.18.*unaffected6.19.12 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/31022cfde5235c45fa765f0aabeff5f0652852f2 ↗
- https://git.kernel.org/stable/c/c2fb4984fe09fc176fe4c12d5e3edf626df6511d ↗
- https://git.kernel.org/stable/c/aa545df011338df13f0833fc1fabcb15c0521959 ↗
- https://git.kernel.org/stable/c/cebc5ebd958346195b77f42d0cd5141b4e448fae ↗
- https://git.kernel.org/stable/c/80688afb9c35b3934ce2d6be9973758915e2e0ef ↗