linux-kernel - Re: [PATCH] integrity: ima scatterlist bug fix

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Message-ID: <a4423d670902200251l6087d8afu88409bf4e2e6cb4e@mail.gmail.com>
Date:	Fri, 20 Feb 2009 13:51:41 +0300
From:	Alexander Beregalov <a.beregalov@...il.com>
To:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
Cc:	linux-next@...r.kernel.org, David Safford <safford@...son.ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Mimi Zohar <zohar@...ibm.com>
Subject: Re: [PATCH] integrity: ima scatterlist bug fix

2009/2/20 Mimi Zohar <zohar@...ux.vnet.ibm.com>:
> Based on Alexander Beregalov's post http://lkml.org/lkml/2009/2/19/198
>
> - replaced sg_set_buf() with sg_init_one()
>
>  kernel BUG at include/linux/scatterlist.h:65!
>  invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
>  last sysfs file:
>  CPU 2
>  Modules linked in:
>  Pid: 1, comm: swapper Not tainted 2.6.29-rc5-next-20090219 #5 PowerEdge 1950
>  RIP: 0010:[<ffffffff8045ec70>]  [<ffffffff8045ec70>] ima_calc_hash+0xc0/0x160
>  RSP: 0018:ffff88007f46bc40  EFLAGS: 00010286
>  RAX: ffffe200032c45e8 RBX: 00000000fffffff4 RCX: 0000000087654321
>  RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffff88007cf71048
>  RBP: ffff88007f46bcd0 R08: 0000000000000000 R09: 0000000000000163
>  R10: ffff88007f4707a8 R11: 0000000000000000 R12: ffff88007cf71048
>  R13: 0000000000001000 R14: 0000000000000000 R15: 0000000000009d98
>  FS:  0000000000000000(0000) GS:ffff8800051ac000(0000) knlGS:0000000000000000
>  CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
>  CR2: 0000000000000000 CR3: 0000000000201000 CR4: 00000000000006e0
>  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
>  DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
>
> Signed-off-by: Mimi Zohar <zohar@...ibm.com>
Tested-by: Alexander Beregalov <a.beregalov@...il.com>
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