# https://syzkaller.appspot.com/bug?id=b1921f439f79008e0955055a3020f2c6a82cc6cf # See https://goo.gl/kgGztJ for information about syzkaller reproducers. #{"threaded":true,"collide":true,"repeat":true,"procs":1,"sandbox":"setuid","fault_call":-1,"tmpdir":true,"segv":true} r0 = dup2(0xffffffffffffffff, 0xffffffffffffffff) ioctl$TIOCSETA(r0, 0x802c7414, &(0x7f0000000000)={0x800, 0x4, 0x9629, 0x3, "d6391fab62a58473126b03870960785d7964f9bf", 0x401, 0x3}) r1 = syz_open_pts() flock(r1, 0x3) fcntl$lock(r1, 0x9, &(0x7f0000000280)={0x0, 0x100000000, 0x0, 0x100000000}) syz_open_pts() r2 = getuid() getsockopt$sock_cred(r0, 0xffff, 0x1022, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) lchown(&(0x7f0000000040)='./file0\x00', r2, r3) syz_open_pts() close(r1) execve(0x0, 0x0, 0x0)