Re: rhashtable: warnings caused by "rhashtable: Fix use-after-free in rhashtable_walk_stop"

[David Miller]

From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 24 Mar 2015 09:53:17 +1100

> rhashtable: Fix sleeping inside RCU critical section in walk_stop
> 
> The commit 963ecbd41a1026d99ec7537c050867428c397b89 ("rhashtable:
> Fix use-after-free in rhashtable_walk_stop") fixed a real bug
> but created another one because we may end up sleeping inside an
> RCU critical section.
> 
> This patch fixes it properly by replacing the mutex with a spin
> lock that specifically protects the walker lists.
> 
> Reported-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>

Applied, thanks everyone.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/