netdev - Re: Inconsistent lock state and possible irq lock inversion dependency detected in ax25.ko

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 linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 28 Nov 2007 14:48:08 +0100
From:	Jarek Poplawski <jarkao2@...pl>
To:	Bernard Pidoux <pidoux@....jussieu.fr>
Cc:	Alexey Dobriyan <adobriyan@...il.com>, ralf@...ux-mips.org,
	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: Inconsistent lock  state and possible irq lock inversion dependency detected in ax25.ko

On 21-11-2007 23:13, Bernard Pidoux wrote:
...
> [ INFO: inconsistent lock state ]
> 
> The error seems to reside around ax25_disconnect+0x46/0xaf [ax25] that 
> is called when an AX25 connect timeout or a connection failure occurs.
> Connect timeout is probably activating
> ax25_std_heartbeat_expiry+0x19/0xd3 [ax25]
... 

Hi,

Could you try this patch? (2.6.23 or later - should be no difference)

Thanks,
Jarek P.

---

diff -Nurp linux-2.6.24-rc2-/net/ax25/ax25_subr.c linux-2.6.24-rc2+/net/ax25/ax25_subr.c
--- linux-2.6.24-rc2-/net/ax25/ax25_subr.c	2007-10-09 22:31:38.000000000 +0200
+++ linux-2.6.24-rc2+/net/ax25/ax25_subr.c	2007-11-28 11:51:12.000000000 +0100
@@ -279,6 +279,7 @@ void ax25_disconnect(ax25_cb *ax25, int 
 	ax25_link_failed(ax25, reason);
 
 	if (ax25->sk != NULL) {
+		local_bh_disable();
 		bh_lock_sock(ax25->sk);
 		ax25->sk->sk_state     = TCP_CLOSE;
 		ax25->sk->sk_err       = reason;
@@ -288,5 +289,6 @@ void ax25_disconnect(ax25_cb *ax25, int 
 			sock_set_flag(ax25->sk, SOCK_DEAD);
 		}
 		bh_unlock_sock(ax25->sk);
+		local_bh_enable();
 	}
 }
-
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