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[CRYPTO] cts: Init SG tables
author
Alexey Dobriyan
<adobriyan@gmail.com>
Mon, 2 Jun 2008 05:46:51 +0000
(15:46 +1000)
committer
Herbert Xu
<herbert@gondor.apana.org.au>
Mon, 2 Jun 2008 05:46:51 +0000
(15:46 +1000)
Steps to reproduce:
modprobe tcrypt # with CONFIG_DEBUG_SG=y
testing cts(cbc(aes)) encryption
test 1 (128 bit key):
------------[ cut here ]------------
kernel BUG at include/linux/scatterlist.h:65!
invalid opcode: 0000 [1] PREEMPT SMP DEBUG_PAGEALLOC
CPU 0
Modules linked in: tea xts twofish twofish_common tcrypt(+) [maaaany]
Pid: 16151, comm: modprobe Not tainted 2.6.26-rc4-fat #7
RIP: 0010:[<
ffffffffa0bf032e
>] [<
ffffffffa0bf032e
>] :cts:cts_cbc_encrypt+0x151/0x355
RSP: 0018:
ffff81016f497a88
EFLAGS:
00010286
RAX:
ffffe20009535d58
RBX:
ffff81016f497af0
RCX:
0000000087654321
RDX:
ffff8100010d4f28
RSI:
ffff81016f497ee8
RDI:
ffff81016f497ac0
RBP:
ffff81016f497c38
R08:
0000000000000000
R09:
0000000000000011
R10:
ffffffff00000008
R11:
ffff8100010d4f28
R12:
ffff81016f497ac0
R13:
ffff81016f497b30
R14:
0000000000000010
R15:
0000000000000010
FS:
00007fac6fa276f0
(0000) GS:
ffffffff8060e000
(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
CR2:
00007f12ca7cc000
CR3:
000000016f441000
CR4:
00000000000026e0
DR0:
0000000000000000
DR1:
0000000000000000
DR2:
0000000000000000
DR3:
0000000000000000
DR6:
00000000ffff4ff0
DR7:
0000000000000400
Process modprobe (pid: 16151, threadinfo
ffff81016f496000
, task
ffff8101755b4ae0
)
Stack:
0000000000000001
ffff81016f496000
ffffffff80719f78
0000000000000001
0000000000000001
ffffffff8020c87c
ffff81016f99c918
20646c756f772049
65687420656b696c
0000000000000020
0000000000000000
0000000033341102
Call Trace:
[<
ffffffff8020c87c
>] ? restore_args+0x0/0x30
[<
ffffffffa04aa311
>] ? :aes_generic:crypto_aes_expand_key+0x311/0x369
[<
ffffffff802ab453
>] ? check_object+0x15a/0x213
[<
ffffffff802aad22
>] ? init_object+0x6e/0x76
[<
ffffffff802ac3ae
>] ? __slab_free+0xfc/0x371
[<
ffffffffa0bf05ed
>] :cts:crypto_cts_encrypt+0xbb/0xca
[<
ffffffffa07108de
>] ? :crypto_blkcipher:setkey+0xc7/0xec
[<
ffffffffa07110b8
>] :crypto_blkcipher:async_encrypt+0x38/0x3a
[<
ffffffffa2ce9341
>] :tcrypt:test_cipher+0x261/0x7c6
[<
ffffffffa2cfd9df
>] :tcrypt:tcrypt_mod_init+0x9df/0x1b30
[<
ffffffff80261e35
>] sys_init_module+0x9e/0x1b2
[<
ffffffff8020c15a
>] system_call_after_swapgs+0x8a/0x8f
Code: 45 c0 e8 aa 24 63 df 48 c1 e8 0c 48 b9 00 00 00 00 00 e2 ff ff 48 8b 55 88 48 6b c0 68 48 01 c8 b9 21 43 65 87 48 39 4d 80 74 04 <0f> 0b eb fe f6 c2 01 74 04 0f 0b eb fe 83 e2 03 4c 89 ef 44 89
RIP [<
ffffffffa0bf032e
>] :cts:cts_cbc_encrypt+0x151/0x355
RSP <
ffff81016f497a88
>
---[ end trace e8bahiarjand37fd ]---
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/cts.c
patch
|
blob
|
history
diff --git
a/crypto/cts.c
b/crypto/cts.c
index
c4e70bf
..
ccf9c5d
100644
(file)
--- a/
crypto/cts.c
+++ b/
crypto/cts.c
@@
-89,6
+89,9
@@
static int cts_cbc_encrypt(struct crypto_cts_ctx *ctx,
if (lastn < 0)
return -EINVAL;
+ sg_init_table(sgsrc, 1);
+ sg_init_table(sgdst, 1);
+
memset(s, 0, sizeof(s));
scatterwalk_map_and_copy(s, src, offset, nbytes, 0);
@@
-172,6
+175,9
@@
static int cts_cbc_decrypt(struct crypto_cts_ctx *ctx,
if (lastn < 0)
return -EINVAL;
+ sg_init_table(sgsrc, 1);
+ sg_init_table(sgdst, 1);
+
scatterwalk_map_and_copy(s, src, offset, nbytes, 0);
lcldesc.tfm = ctx->child;