openat(0xffffffffffffffff, 0x0, 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x105142, 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000280)='/proc/self/exe\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x0) sendfile(r0, r1, 0x0, 0x100000001) fallocate(0xffffffffffffffff, 0x0, 0x0, 0x0) mmap(&(0x7f0000000000/0xc00000)=nil, 0xc00000, 0x0, 0x10, 0xffffffffffffffff, 0x0) r2 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x121042, 0x0) r3 = openat(0xffffffffffffffff, &(0x7f0000000280)='/proc/self/exe\x00', 0x0, 0x0) sendfile(r2, r3, 0x0, 0x100000001)