Re: [PATCH] integrity: ima scatterlist bug fix

From: Alexander Beregalov
Date: Fri Feb 20 2009 - 05:51:54 EST


2009/2/20 Mimi Zohar <zohar@xxxxxxxxxxxxxxxxxx>:
> 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@xxxxxxxxxx>
Tested-by: Alexander Beregalov <a.beregalov@xxxxxxxxx>
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