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:	Tue, 27 Mar 2007 17:10:36 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Denys <denys@...p.net.lb>
CC:	Stephen Hemminger <shemminger@...ux-foundation.org>,
	netdev@...r.kernel.org
Subject: Re: more... iproute2/htb/whatever critical bug ?

Denys wrote:
> Mar 26 21:20:04 ROUTER-75 [  551.481081] BUG: unable to handle kernel NULL 
> pointer dereference
> Mar 26 21:20:04 ROUTER-75 at virtual address 00000074
> Mar 26 21:20:04 ROUTER-75 [  551.481187]  printing eip:
> Mar 26 21:20:04 ROUTER-75 [  551.481236] f8a11df1
> Mar 26 21:20:04 ROUTER-75 [  551.481289] *pde = 00000000
> Mar 26 21:20:04 ROUTER-75 [  551.481340] Oops: 0000 [#1]
> Mar 26 21:20:04 ROUTER-75 [  551.481384]
> Mar 26 21:20:04 ROUTER-75 SMP
> Mar 26 21:20:04 ROUTER-75
> Mar 26 21:20:04 ROUTER-75 [  551.481549] Modules linked in:
> .... long module list
> ar 26 21:20:04 ROUTER-75 [  551.485237] CPU:    0
> Mar 26 21:20:04 ROUTER-75 [  551.485238] EIP:    0060:[<f8a11df1>]    Not 
> tainted VLI
> Mar 26 21:20:04 ROUTER-75 [  551.485239] EFLAGS: 00010282   (2.6.20.3-build-
> 0001 #4)
> Mar 26 21:20:04 ROUTER-75 [  551.485438] EIP is at htb_qlen_notify+0x9/0x79 
> [sch_htb]


Oops, that seems to be my fault. Can you please try the attached patch?
To reproduce the problem you need to have packets queued while the
device is going down, so please make sure that is true by flooding
the device or something like that.


View attachment "x" of type "text/plain" (1335 bytes)

Powered by blists - more mailing lists