r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x105142, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
r2 = dup2(r1, r0)
r3 = syz_open_dev$tty1(0xc, 0x4, 0x1)
sendfile(r3, r2, 0x0, 0x8790)