Il 22.05.2015 14:08 Eric Dumazet ha scritto:
On Fri, 2015-05-22 at 04:58 -0500, Eric W. Biederman wrote:
ip_error does not check if in_dev is NULL before dereferencing it.


Therefore handle this weird case by just dropping the packet if
!in_dev.  It will result in dropping the packet sooner, and will not
result in an actual change of behavior.

Fixes: 251da4130115b ("ipv4: Cache ip_error() routes even when not forwarding.")
Reported-by: "Vittorio G (VittGam)" <[email protected]>
Tested-by: "Vittorio G (VittGam)" <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]>
---

Acked-by: Eric Dumazet <[email protected]>

Thanks !

I've no problem using my real name here, so:

Reported-by: Vittorio Gambaletta <[email protected]>
Tested-by: Vittorio Gambaletta <[email protected]>
Signed-off-by: Vittorio Gambaletta <[email protected]>

Signed-off too, since this is actually v2 of my patch with the warning removed.

Thanks!
Vittorio
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