Re: [PATCH] ipv6: make sure to initialize sockc.tsflags before first use

From: Soheil Hassas Yeganeh
Date: Tue Mar 21 2017 - 12:27:54 EST


On Tue, Mar 21, 2017 at 12:14 PM, Alexander Potapenko <glider@xxxxxxxxxx> wrote:
> In the case udp_sk(sk)->pending is AF_INET6, udpv6_sendmsg() would
> jump to do_append_data, skipping the initialization of sockc.tsflags.
> Fix the problem by moving sockc.tsflags initialization earlier.
>
> The bug was detected with KMSAN.

Nice catch and thanks for the fix! This is missing a "fixes"
attribution, added below.

> Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx>

Fixes: c14ac9451c34 ("sock: enable timestamping using control messages")
Acked-by: Soheil Hassas Yeganeh <soheil@xxxxxxxxxx>