r0 = syz_io_uring_setup(0x4d4f, &(0x7f00000002c0), &(0x7f00000a0000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000000200)=<r1=>0x0, &(0x7f0000000140)=<r2=>0x0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000440)={<r3=>0xffffffffffffffff, <r4=>0xffffffffffffffff})
syz_io_uring_submit(r1, r2, &(0x7f0000000040)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0)
sendmmsg(r3, &(0x7f0000007cc0)=[{{0x0, 0x0, &(0x7f00000007c0)=[{&(0x7f0000000340)='[', 0x1}], 0x1}}], 0x1, 0x0)
io_uring_enter(r0, 0x58ab, 0x0, 0x0, 0x0, 0x0)