From: "Gustavo A. R. Silva" <gust...@embeddedor.com> Date: Fri, 21 Dec 2018 15:41:17 -0600
> protocol is indirectly controlled by user-space, hence leading to > a potential exploitation of the Spectre variant 1 vulnerability. > > This issue was detected with the help of Smatch: > > net/phonet/af_phonet.c:48 phonet_proto_get() warn: potential spectre issue > 'proto_tab' [w] (local cap) > > Fix this by sanitizing protocol before using it to index proto_tab. > > Notice that given that speculation windows are large, the policy is > to kill the speculation on the first load and not worry if it can be > completed with a dependent load/store [1]. > > [1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2 > > Signed-off-by: Gustavo A. R. Silva <gust...@embeddedor.com> Applied, thanks.
