In the Linux kernel, the following vulnerability has been resolved:
crypto: pcrypt - Call crypto layer directly when padatadoparallel() return -EBUSY
Since commit 8f4f68e788c3 ("crypto: pcrypt - Fix hungtask for PADATARESET"), the pcrypt encryption and decryption operations return -EAGAIN when the CPU goes online or offline. In algtest(), a WARN is generated when pcryptaeaddecrypt() or pcryptaeadencrypt() returns -EAGAIN, the unnecessary panic will occur when paniconwarn set 1. Fix this issue by calling crypto layer directly without parallelization in that case.