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linux/crypto
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Herbert Xu c5ffd60857 crypto: skcipher - Fix blkcipher walk OOM crash 
commit acdb04d0b3 upstream.

When we need to allocate a temporary blkcipher_walk_next and it
fails, the code is supposed to take the slow path of processing
the data block by block.  However, due to an unrelated change
we instead end up dereferencing the NULL pointer.

This patch fixes it by moving the unrelated bsize setting out
of the way so that we enter the slow path as inteded.

Fixes: 7607bd8ff0 ("[CRYPTO] blkcipher: Added blkcipher_walk_virt_block")
Reported-by: xiakaixu <xiakaixu@huawei.com>
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2016-11-20 01:17:26 +00:00
..
asymmetric_keys crypto: public_key: select CRYPTO_AKCIPHER 2016-08-22 22:38:02 +01:00
async_tx async_tx: use GFP_NOWAIT rather than GFP_IO 2016-01-25 10:44:04 +00:00
842.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
ablk_helper.c crypto: ablk_helper - Replace memcpy with struct assignment 2013-10-07 14:16:57 +08:00
ablkcipher.c crypto: {blk,giv}cipher: Set has_setkey 2016-03-08 12:15:18 +00:00
aead.c crypto: user - fix info leaks in report API 2013-02-19 20:27:03 +08:00
aes_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
af_alg.c crypto: af_alg - Forbid bind(2) when nokey child sockets are present 2016-02-02 19:09:57 +00:00
ahash.c crypto: hash - Fix page length clamping in hash walk 2016-06-15 21:29:30 +01:00
algapi.c crypto: api - Only abort operations on fatal signal 2015-11-16 11:27:09 +00:00
algboss.c crypto: algboss - Hold ref count on larval 2013-06-25 19:15:17 +08:00
algif_hash.c crypto: algif_hash - wait for crypto_ahash_init() to complete 2016-02-25 00:18:38 +00:00
algif_skcipher.c crypto: algif_skcipher - Fix race condition in skcipher_check_key 2016-02-24 14:41:18 +00:00
ansi_cprng.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
anubis.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
api.c crypto: api - Only abort operations on fatal signal 2015-11-16 11:27:09 +00:00
arc4.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
authenc.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
authencesn.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
blkcipher.c crypto: skcipher - Fix blkcipher walk OOM crash 2016-11-20 01:17:26 +00:00
blowfish_common.c crypto: blowfish - split generic and common c code 2011-09-22 21:25:25 +10:00
blowfish_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
camellia_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
cast5_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
cast6_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
cast_common.c crypto: make tables used from assembler __visible 2013-08-14 20:42:03 +10:00
cbc.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
ccm.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
chainiv.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
cipher.c crypto: cipher - Fix checkpatch errors 2010-02-16 20:31:37 +08:00
cmac.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
compress.c crypto: compress - Fix checkpatch errors 2010-02-16 20:31:04 +08:00
crc32.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
crc32c_generic.c crypto: crc32c - Fix crc32c soft dependency 2016-02-02 19:10:02 +00:00
crct10dif_common.c crypto: crct10dif - Add fallback for broken initrds 2013-09-12 15:31:34 +10:00
crct10dif_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
cryptd.c crypto: cryptd - initialize child shash_desc on import 2016-11-20 01:17:24 +00:00
crypto_null.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
crypto_user.c crypto: user - lock crypto_alg_list on alg dump 2016-02-25 10:34:46 +00:00
crypto_wq.c crypto: crypto_wq - Fix late crypto work queue initialization 2014-03-21 21:54:28 +08:00
ctr.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
cts.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
deflate.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
des_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
ecb.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
eseqiv.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
fcrypt.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
fips.c crypto: api - Add fips_enable flag 2008-08-29 15:50:02 +10:00
gcm.c crypto: gcm - Filter out async ghash if necessary 2016-11-20 01:16:41 +00:00
gf128mul.c crypto: gf128mul - fix call to memset() 2011-07-08 17:21:21 +08:00
ghash-generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
hash_info.c crypto: provide single place for hash algo information 2013-10-25 17:14:03 -04:00
hmac.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
internal.h crypto: algboss - Hold ref count on larval 2013-06-25 19:15:17 +08:00
Kconfig crypto: sha - SHA1 transform x86_64 AVX2 2014-03-21 21:54:30 +08:00
khazad.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
krng.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
lrw.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
lz4.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
lz4hc.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
lzo.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
Makefile CRC32C: Add soft module dependency to load other accelerated crc32c modules 2014-02-25 19:45:04 +08:00
md4.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
md5.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
memneq.c crypto: memneq - fix for archs without efficient unaligned access 2013-12-09 20:09:12 +08:00
michael_mic.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
pcbc.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
pcompress.c crypto: user - fix info leaks in report API 2013-02-19 20:27:03 +08:00
pcrypt.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
proc.c crypto: add module.h to those files that are explicitly using it 2011-10-31 19:31:11 -04:00
ripemd.h [CRYPTO] ripemd: Put all common RIPEMD values in header file 2008-07-10 20:35:12 +08:00
rmd128.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
rmd160.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
rmd256.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
rmd320.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
rng.c crypto: user - fix info leaks in report API 2013-02-19 20:27:03 +08:00
salsa20_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
scatterwalk.c crypto: scatterwalk - Fix test in scatterwalk_done 2016-11-20 01:16:53 +00:00
seed.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00
seqiv.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
serpent_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
sha1_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
sha256_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
sha512_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
shash.c crypto: shash - Fix has_key setting 2016-02-25 00:18:37 +00:00
tcrypt.c crypto: testmgr - add aead cbc des, des3_ede tests 2014-05-22 21:03:18 +08:00
tcrypt.h crypto: tcrypt - Added speed tests for AEAD crypto alogrithms in tcrypt test suite 2013-12-20 20:06:25 +08:00
tea.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
testmgr.c crypto: testmgr - add aead cbc des, des3_ede tests 2014-05-22 21:03:18 +08:00
testmgr.h crypto: testmgr - add aead cbc des, des3_ede tests 2014-05-22 21:03:18 +08:00
tgr192.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
twofish_common.c crypto: twofish-x86_64-3way - add lrw support 2011-11-09 11:53:32 +08:00
twofish_generic.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
vmac.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
wp512.c crypto: add missing crypto module aliases 2015-02-04 10:57:50 +00:00
xcbc.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
xor.c add further __init annotations to crypto/xor.c 2012-10-11 13:42:32 +11:00
xts.c crypto: include crypto- module prefix in template 2015-02-04 10:57:49 +00:00
zlib.c crypto: prefix module autoloading with "crypto-" 2015-02-04 10:57:48 +00:00