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linux-stable/crypto
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Herbert Xu cd8e0a5d94 crypto: skcipher - Unmap pages after an external error 
commit 0ba3c026e6 upstream.

skcipher_walk_done may be called with an error by internal or
external callers.  For those internal callers we shouldn't unmap
pages but for external callers we must unmap any pages that are
in use.

This patch distinguishes between the two cases by checking whether
walk->nbytes is zero or not.  For internal callers, we now set
walk->nbytes to zero prior to the call.  For external callers,
walk->nbytes has always been non-zero (as zero is used to indicate
the termination of a walk).

Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Fixes: 5cde0af2a9 ("[CRYPTO] cipher: Added block cipher type")
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-11 18:20:52 +02:00
..
asymmetric_keys crypto: asymmetric_keys - select CRYPTO_HASH where needed 2019-07-26 09:14:13 +02:00
async_tx async_pq: Remove VLA usage 2018-06-18 20:17:38 +05:30
842.c
ablkcipher.c crypto: ablkcipher - fix crash flushing dcache in error path 2018-08-03 18:06:04 +08:00
acompress.c
aead.c crypto: aead - set CRYPTO_TFM_NEED_KEY if ->setkey() fails 2019-03-23 20:09:54 +01:00
aegis.h crypto: aegis/generic - fix for big endian systems 2018-11-13 11:08:46 -08:00
aegis128.c crypto: aegis - fix handling chunked inputs 2019-03-23 20:09:54 +01:00
aegis128l.c crypto: aegis - fix handling chunked inputs 2019-03-23 20:09:54 +01:00
aegis256.c crypto: aegis - fix handling chunked inputs 2019-03-23 20:09:54 +01:00
aes_generic.c
aes_ti.c crypto: aes_ti - disable interrupts while accessing S-box 2019-02-12 19:46:58 +01:00
af_alg.c net: crypto set sk to NULL when af_alg_release. 2019-02-23 09:07:24 +01:00
ahash.c crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails 2019-03-23 20:09:54 +01:00
akcipher.c
algapi.c crypto: api - laying defines and checks for statically allocated buffers 2018-04-21 00:58:32 +08:00
algboss.c
algif_aead.c Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
algif_hash.c net: remove sock_no_poll 2018-05-26 09:16:44 +02:00
algif_rng.c net: remove sock_no_poll 2018-05-26 09:16:44 +02:00
algif_skcipher.c Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
ansi_cprng.c
anubis.c
api.c evm: Don't deadlock if a crypto algorithm is unavailable 2018-07-18 07:27:22 -04:00
arc4.c
authenc.c crypto: authenc - fix parsing key with misaligned rta_len 2019-01-22 21:40:32 +01:00
authencesn.c crypto: authencesn - Avoid twice completion call in decrypt path 2019-01-22 21:40:31 +01:00
blkcipher.c crypto: blkcipher - fix crash flushing dcache in error path 2018-08-03 18:06:04 +08:00
blowfish_common.c
blowfish_generic.c
camellia_generic.c
cast5_generic.c
cast6_generic.c
cast_common.c
cbc.c crypto: do not free algorithm before using 2018-12-13 09:16:21 +01:00
ccm.c crypto: ccm - fix incompatibility between "ccm" and "ccm_base" 2019-05-22 07:37:43 +02:00
cfb.c crypto: cfb - remove bogus memcpy() with src == dest 2019-03-23 20:09:40 +01:00
chacha20_generic.c
chacha20poly1305.c crypto: chacha20poly1305 - fix atomic sleep when using async algorithm 2019-07-26 09:14:19 +02:00
cipher.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
cmac.c
compress.c
crc32_generic.c crypto: crc32-generic - remove __crc32_le() 2018-05-27 00:12:09 +08:00
crc32c_generic.c crypto: crc32c-generic - remove cra_alignmask 2018-05-27 00:12:08 +08:00
crct10dif_common.c
crct10dif_generic.c crypto: crct10dif-generic - fix use via crypto_shash_digest() 2019-05-22 07:37:37 +02:00
cryptd.c crypto: cryptd - Fix skcipher instance memory leak 2019-07-10 09:53:41 +02:00
crypto_engine.c crypto: engine - Permit to enqueue all async requests 2018-02-15 23:26:50 +08:00
crypto_null.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
crypto_user.c crypto: user - prevent operating on larval algorithms 2019-07-10 09:53:41 +02:00
crypto_wq.c
ctr.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
cts.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
deflate.c
des_generic.c
dh.c crypto: dh - fix memory leak 2018-07-20 13:51:21 +08:00
dh_helper.c crypto: dh - make crypto_dh_encode_key() make robust 2018-08-03 18:06:06 +08:00
drbg.c crypto: drbg - in-place cipher operation for CTR 2018-08-03 18:05:48 +08:00
ecb.c
ecc.c crypto: ecc - regularize scalar for scalar multiplication 2019-01-26 09:32:35 +01:00
ecc.h crypto: ecc - Actually remove stack VLA usage 2018-04-21 00:58:29 +08:00
ecc_curve_defs.h crypto: ecdh - fix typo of P-192 b value 2018-07-20 13:51:22 +08:00
ecdh.c crypto: ecc - Actually remove stack VLA usage 2018-04-21 00:58:29 +08:00
ecdh_helper.c
echainiv.c
fcrypt.c
fips.c
gcm.c crypto: gcm - fix incompatibility between "gcm" and "gcm_base" 2019-05-22 07:37:37 +02:00
gf128mul.c
ghash-generic.c crypto: ghash - fix unaligned memory access in ghash_setkey() 2019-07-26 09:14:19 +02:00
hash_info.c
hmac.c
internal.h crypto: api - Make crypto_alg_lookup static 2018-03-31 01:32:58 +08:00
jitterentropy-kcapi.c
jitterentropy.c
Kconfig crypto: aes_ti - disable interrupts while accessing S-box 2019-02-12 19:46:58 +01:00
keywrap.c
khazad.c
kpp.c
lrw.c crypto: lrw - Fix out-of bounds access on counter overflow 2018-11-13 11:08:45 -08:00
lz4.c
lz4hc.c
lzo.c
Makefile crypto: speck - remove Speck 2018-11-13 11:08:46 -08:00
mcryptd.c crypto: mcryptd - remove pointless wrapper functions 2018-02-15 23:26:45 +08:00
md4.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
md5.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
memneq.c
michael_mic.c
morus640.c crypto: morus - fix handling chunked inputs 2019-03-23 20:09:54 +01:00
morus1280.c crypto: morus - fix handling chunked inputs 2019-03-23 20:09:54 +01:00
pcbc.c crypto: pcbc - remove bogus memcpy()s with src == dest 2019-03-23 20:09:55 +01:00
pcrypt.c
poly1305_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
proc.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
ripemd.h
rmd128.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
rmd160.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
rmd256.c crypto: rmd256 - use swap macro in rmd256_transform 2018-07-27 19:28:36 +08:00
rmd320.c crypto: rmd320 - use swap macro in rmd320_transform 2018-07-27 19:28:36 +08:00
rng.c
rsa-pkcs1pad.c crypto: rsa-pkcs1pad - Replace GFP_ATOMIC with GFP_KERNEL in pkcs1pad_encrypt_sign_complete 2018-02-15 23:26:47 +08:00
rsa.c crypto: rsa - Remove unneeded error assignment 2018-04-21 00:58:37 +08:00
rsa_helper.c kbuild: rename *-asn1.[ch] to *.asn1.[ch] 2018-04-07 19:04:02 +09:00
rsaprivkey.asn1
rsapubkey.asn1
salsa20_generic.c crypto: salsa20 - don't access already-freed walk.iv 2019-05-22 07:37:36 +02:00
scatterwalk.c crypto: scatterwalk - remove 'chain' argument from scatterwalk_crypto_chain() 2018-08-03 18:06:03 +08:00
scompress.c
seed.c
seqiv.c
serpent_generic.c crypto: serpent - mark __serpent_setkey_sbox noinline 2019-07-26 09:14:13 +02:00
sha1_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
sha3_generic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux 2018-08-03 17:55:12 +08:00
sha256_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
sha512_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
shash.c crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails 2019-03-23 20:09:54 +01:00
simd.c crypto: simd - correctly take reqsize of wrapped skcipher into account 2018-12-01 09:37:32 +01:00
skcipher.c crypto: skcipher - Unmap pages after an external error 2019-10-11 18:20:52 +02:00
sm3_generic.c crypto: sm3 - fix undefined shift by >= width of value 2019-01-22 21:40:31 +01:00
sm4_generic.c crypto: sm4 - export encrypt/decrypt routines to other drivers 2018-05-05 14:52:51 +08:00
tcrypt.c crypto: testmgr - add AES-CFB tests 2019-01-09 17:38:44 +01:00
tcrypt.h
tea.c
testmgr.c crypto: testmgr - skip crc32c context test for ahash algorithms 2019-03-23 20:09:55 +01:00
testmgr.h crypto: x86/poly1305 - fix overflow during partial reduction 2019-04-27 09:36:37 +02:00
tgr192.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
twofish_common.c
twofish_generic.c
vmac.c crypto: vmac - remove insecure version with hardcoded nonce 2018-07-01 21:00:44 +08:00
wp512.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
xcbc.c
xor.c
xts.c crypto: scatterwalk - remove 'chain' argument from scatterwalk_crypto_chain() 2018-08-03 18:06:03 +08:00
zstd.c crypto: zstd - Add zstd support 2018-04-21 00:58:30 +08:00