r0 = creat(&(0x7f0000000000)='./file2\x00', 0x0)
fcntl$setlease(r0, 0x400, 0x1)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000280)='/proc/locks\x00', 0x0, 0x0)
sendfile(r1, r2, 0x0, 0xffe3)
ftruncate(r0, 0x0)