r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x0, @empty}, 0x1c)
r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='mounts\x00')
sendfile(r0, r1, 0x0, 0xffd0)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
dup2(r0, r2)
r3 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='mounts\x00')
sendfile(r2, r3, 0x0, 0xffd0)