Re: [PATCH] crypto: iaa - Fix out-of-bounds index in find_empty_iaa_compression_mode

On Thu, Nov 27, 2025 at 03:01:57PM +0100, Thorsten Blum wrote:

The local variable 'i' is initialized with -EINVAL, but the for loop immediately overwrites it and -EINVAL is never returned.

If no empty compression mode can be found, the function would return the out-of-bounds index IAA_COMP_MODES_MAX, which would cause an invalid array access in add_iaa_compression_mode().

Fix both issues by returning either a valid index or -EINVAL.

Cc: stable@vger.kernel.org Fixes: b190447e0fa3 ("crypto: iaa - Add compression mode management along with fixed mode") Signed-off-by: Thorsten Blum thorsten.blum@linux.dev

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drivers/crypto/intel/iaa/iaa_crypto_main.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-)

Patch applied. Thanks.