linux-stable.git/drivers/crypto/caam/caamalg.c, branch linux-rolling-stable

crypto: caam - use print_hex_dump_devel to guard key hex dumps

2026-07-18T14:55:40+00:00

commit 3f57657b6ea23f933371f2c2846322f441773cee upstream.

Use print_hex_dump_devel() for dumping sensitive key material in
*_setkey() and gen_split_key() to avoid leaking secrets at runtime when
CONFIG_DYNAMIC_DEBUG is enabled.

Fixes: 6e005503199b ("crypto: caam - print debug messages at debug level")
Cc: stable@vger.kernel.org
Signed-off-by: Thorsten Blum 
Signed-off-by: Herbert Xu 
Signed-off-by: Greg Kroah-Hartman

crypto: caam - Add support of paes algorithm

2025-10-20T04:10:28+00:00

PAES algorithm uses protected key for encryption/decryption operations.

Signed-off-by: Gaurav Jain 
Signed-off-by: Meenakshi Aggarwal 
Signed-off-by: Herbert Xu

move asm/unaligned.h to linux/unaligned.h

2024-10-02T21:23:23+00:00

asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.

auto-generated by the following:

for i in `git grep -l -w asm/unaligned.h`; do
	sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
	sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h

crypto: caam/jr - fix Chacha20 + Poly1305 self test failure

2023-10-01T08:28:15+00:00

key buffer is not copied in chachapoly_setkey function,
results in wrong output for encryption/decryption operation.

fix this by memcpy the key in caam_ctx key arrary

Fixes: d6bbd4eea243 ("crypto: caam/jr - add support for Chacha20 + Poly1305")
Signed-off-by: Gaurav Jain 
Signed-off-by: Herbert Xu

crypto: caam - Use new crypto_engine_op interface

2023-08-18T09:01:10+00:00

Use the new crypto_engine_op interface where the callback is stored
in the algorithm object.

Signed-off-by: Herbert Xu

crypto: caam - Include internal/engine.h

2023-08-18T09:01:10+00:00

Inlucde internal/engine.h because this driver uses directly
accesses attributes inside struct crypto_engine.

Signed-off-by: Herbert Xu

crypto: caam - reduce page 0 regs access to minimum

2023-04-14T10:59:34+00:00

Use job ring register map, in place of controller register map
to access page 0 registers, as access to the controller register
map is not permitted.

Signed-off-by: Horia GeantA 
Signed-off-by: Gaurav Jain 
Signed-off-by: Meenakshi Aggarwal 
Reviewed-by: Varun Sethi 
Reviewed-by: Gaurav Jain 
Signed-off-by: Herbert Xu

crypto: caam - Fix edesc/iv ordering mixup

2023-02-28T08:30:58+00:00

The attempt to add DMA alignment padding by moving IV to the front
of edesc was completely broken as it didn't change the places where
edesc was freed.

It's also wrong as the IV may still share a cache-line with the
edesc.

Fix this by restoring the original layout and simply reserving
enough memmory so that the IV is on a DMA cache-line by itself.

Reported-by: Meenakshi Aggarwal 
Fixes: 199354d7fb6e ("crypto: caam - Remove GFP_DMA and add DMA alignment padding")
Signed-off-by: Herbert Xu

crypto: caam - Remove GFP_DMA and add DMA alignment padding

2023-01-06T09:15:47+00:00

GFP_DMA does not guarantee that the returned memory is aligned
for DMA.  It should be removed where it is superfluous.

However, kmalloc may start returning DMA-unaligned memory in future
so fix this by adding the alignment by hand.

Signed-off-by: Herbert Xu

crypto: caam - Set DMA alignment explicitly

2022-12-02T10:12:41+00:00

This driver has been implicitly relying on kmalloc alignment
to be sufficient for DMA.  This may no longer be the case with
upcoming arm64 changes.

This patch changes it to explicitly request DMA alignment from
the Crypto API.

Signed-off-by: Herbert Xu