FILE: crypto/af_alg.c

INFO: task syz-executor2:19495 blocked for more than 120 seconds.
      Not tainted 4.15.0-rc2+ #148
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor2   D25200 19495   3406 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2799 [inline]
 __schedule+0x8eb/0x2060 kernel/sched/core.c:3375
 schedule+0xf5/0x430 kernel/sched/core.c:3434
 __lock_sock+0x1dc/0x2f0 net/core/sock.c:2240
 lock_sock_nested+0xf3/0x110 net/core/sock.c:2764
 lock_sock include/net/sock.h:1461 [inline]
 af_alg_sendmsg+0x349/0x1080 crypto/af_alg.c:858
 aead_sendmsg+0x103/0x150 crypto/algif_aead.c:76
 sock_sendmsg_nosec net/socket.c:636 [inline]