In the Linux kernel, the following vulnerability has been resolved:
s390/dasd: fix error checks in dasdcopypair_store()
dasdaddbusid() can return an error via ERRPTR() if an allocation fails. However, two callsites in dasdcopypairstore() do not check the result, potentially resulting in a NULL pointer dereference. Fix this by checking the result with IS_ERR() and returning the error up the stack.