r0 = syz_io_uring_setup(0x3494, &(0x7f0000000100), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000000040)=<r1=>0x0, &(0x7f0000000280)=<r2=>0x0)
syz_io_uring_submit(r1, r2, &(0x7f0000000080)=@IORING_OP_PROVIDE_BUFFERS={0x1f, 0x0, 0x0, 0x1, 0xfffffffffffffffd, 0x0}, 0x0)
mmap$IORING_OFF_SQ_RING(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x100000e, 0x13, r0, 0x0)
syz_io_uring_submit(r1, r2, &(0x7f00000002c0)=@IORING_OP_WRITE_FIXED={0x5, 0x0, 0x0, @fd_index}, 0x0)
io_uring_enter(r0, 0x1c6, 0x0, 0x0, 0x0, 0x0)