r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x46e2, 0x0)
ftruncate(r0, 0x4)
r1 = mmap$IORING_OFF_SQ_RING(&(0x7f0000ffe000/0x1000)=nil, 0x1000, 0xa, 0x13, r0, 0x0)
syz_io_uring_complete(r1)
madvise(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x4)