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Change History

In the Linux kernel, the following vulnerability has been resolved:

crypto: iaa - Fix out-of-bounds index in find_empty_iaa_compression_mode

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.

https://git.kernel.org/stable/c/c77b33b58512708bd5603f48465f018c8b748847

https://git.kernel.org/stable/c/d75207465eed20bc9b0daa4a0927de9568996067

https://git.kernel.org/stable/c/de16f5bca05cace238d237791ed1b6e9d22dab60