In the Linux kernel, the following vulnerability has been resolved:
s390/pkey: Check length in pkey_pckmo handler implementation
Explicitly check the length of the target buffer in the pkey_pckmo
implementation of the key_to_protkey() handler function. The handler
function fails, if the generated output data exceeds the length of the
provided target buffer.
References 4
https://git.kernel.org/stable/c/02028a24e26d85262ab9c8fc4344e1f3503007fc
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1ac287e2af9a9112fe271427ef45eceb26bce8b4
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/433e5e70cdc1edf382d28d08a885b22e2b98b7da
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/614aa0491c7a190556c2345dddee0b6f5ed90989
416baaa9-dc9f-4396-8d5f-8c081fb06d67