netdev - Re: [PATCH v2 net] net/ipv6: Revert remove expired routes with a separated list of routes

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Date: Tue, 19 Dec 2023 09:36:42 +0100
From: Eric Dumazet <edumazet@...gle.com>
To: David Ahern <dsahern@...nel.org>
Cc: netdev@...r.kernel.org, Kui-Feng Lee <thinker.li@...il.com>
Subject: Re: [PATCH v2 net] net/ipv6: Revert remove expired routes with a
 separated list of routes

On Tue, Dec 19, 2023 at 4:02 AM David Ahern <dsahern@...nel.org> wrote:
>
> This reverts commit 3dec89b14d37ee635e772636dad3f09f78f1ab87.
>
> The commit has some race conditions given how expires is managed on a
> fib6_info in relation to gc start, adding the entry to the gc list and
> setting the timer value leading to UAF. Revert the commit and try again
> in a later release.
>
> Fixes: 3dec89b14d37 ("net/ipv6: Remove expired routes with a separated list of routes")
> Cc: Kui-Feng Lee <thinker.li@...il.com>
> Signed-off-by: David Ahern <dsahern@...nel.org>

Reviewed-by: Eric Dumazet <edumazet@...gle.com>