integrity: ima scatterlist bug fix
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@us.ibm.com>
Tested-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: James Morris <jmorris@namei.org>