lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Mon, 26 Nov 2007 16:56:01 +0100
From:	Patrick McHardy <kaber@...sh.net>
To:	Herbert Xu <herbert@...dor.apana.org.au>
CC:	"David S. Miller" <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [XFRM]: Fix leak of expired xfrm_states

Herbert Xu wrote:
> On Mon, Nov 26, 2007 at 04:51:42PM +0100, Patrick McHardy wrote:
>> It actually won't get freed at all currently since nothing is
>> calling __xfrm_state_destroy(). __xfrm_state_delete() uses
>> __xfrm_state_put(), which only decrements the refcount, but
>> doesn't perform destruction.
>>
>> This is visible when looking at the xfrm[46]_mode_{tunnel,transport}
>> module reference counts, they climb higher and higher over time.
> 
> Oh I see.  How about just removing those double underscores then?


That should work as long as we keep the del_timer_sync to avoid
a use-after-free. It seems a bit fragile though.
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists