IPVS: set_ctl: invalid protocol: 51 224.0.0.1:20004 ================================================ WARNING: lock held when returning to user space! 4.18.0+ #198 Not tainted ------------------------------------------------ syz-executor5/8610 is leaving the kernel with locks still held! 1 lock held by syz-executor5/8610: #0: 000000005b8f856a (&fi->mutex){+.+.}, at: fuse_lock_inode+0xaf/0xe0 fs/fuse/inode.c:363 IPVS: set_ctl: invalid protocol: 135 172.20.20.170:20004