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Daniele Alessandrelli db5d0634e2 crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key() 
[ Upstream commit a53ab94eb6 ]

The length ('len' parameter) passed to crypto_ecdh_decode_key() is never
checked against the length encoded in the passed buffer ('buf'
parameter). This could lead to an out-of-bounds access when the passed
length is less than the encoded length.

Add a check to prevent that.

Fixes: 3c4b23901a ("crypto: ecdh - Add ECDH software support")
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-03 17:44:36 +01:00
..
asymmetric_keys crypto: asymmetric_keys - select CRYPTO_HASH where needed 2019-08-04 09:33:23 +02:00
async_tx async_tx: Fix DMA_PREP_FENCE usage in do_async_gen_syndrome() 2018-04-13 19:47:58 +02:00
.gitignore crypto: rsa - add .gitignore for crypto/*.-asn1.[ch] files 2015-06-25 23:29:24 +08:00
842.c crypto: 842 - change 842 alg to use software 2015-05-11 15:06:43 +08:00
ablk_helper.c crypto: ablk_helper - Fix cryptd reordering 2016-06-23 18:29:53 +08:00
ablkcipher.c crypto: skcipher - Fix -Wstringop-truncation warnings 2018-10-03 17:01:41 -07:00
aead.c crypto: aead - Remove blkcipher null for IV generators 2016-07-18 17:35:43 +08:00
aes_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
af_alg.c crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock() 2020-07-09 09:35:55 +02:00
ahash.c crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails 2019-03-23 13:19:45 +01:00
akcipher.c crypto: akcipher - add akcipher declarations needed by templates. 2015-12-09 20:03:57 +08:00
algapi.c crypto: api - Fix race condition in crypto_spawn_alg 2020-02-14 16:31:02 -05:00
algboss.c crypto: algboss - don't wait during notifier callback 2020-06-30 15:38:32 -04:00
algif_aead.c crypto: algif_aead - Do not set MAY_BACKLOG on the async path 2020-10-29 09:05:32 +01:00
algif_hash.c crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock() 2020-07-09 09:35:55 +02:00
algif_rng.c crypto: algif_rng - Remove obsolete const-removal cast 2015-04-22 09:30:21 +08:00
algif_skcipher.c crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock() 2020-07-09 09:35:55 +02:00
ansi_cprng.c crypto: ansi_cprng - Convert to new rng interface 2015-04-22 09:30:18 +08:00
anubis.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
api.c crypto: api - Fix race condition in crypto_spawn_alg 2020-02-14 16:31:02 -05:00
arc4.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
authenc.c crypto: authenc - fix parsing key with misaligned rta_len 2019-01-23 08:10:54 +01:00
authencesn.c crypto: authencesn - Avoid twice completion call in decrypt path 2019-01-23 08:10:54 +01:00
blkcipher.c crypto: skcipher - Fix -Wstringop-truncation warnings 2018-10-03 17:01:41 -07:00
blowfish_common.c
blowfish_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
camellia_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
cast5_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
cast6_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
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 2014-11-26 20:06:30 +08:00
ccm.c crypto: ccm - preserve the IV buffer 2017-11-15 15:53:18 +01:00
chacha20_generic.c random: replace non-blocking pool with a Chacha20-based CRNG 2016-07-03 00:57:23 -04:00
chacha20poly1305.c crypto: chacha20poly1305 - fix atomic sleep when using async algorithm 2019-08-04 09:33:26 +02:00
cipher.c
cmac.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
compress.c
crc32_generic.c crypto: hash - annotate algorithms taking optional key 2018-02-25 11:05:43 +01:00
crc32c_generic.c crypto: hash - annotate algorithms taking optional key 2018-02-25 11:05:43 +01:00
crct10dif_common.c crypto: crct10dif - Add fallback for broken initrds 2013-09-12 15:31:34 +10:00
crct10dif_generic.c crypto: crct10dif-generic - fix use via crypto_shash_digest() 2019-05-21 18:48:57 +02:00
cryptd.c crypto: hash - annotate algorithms taking optional key 2018-02-25 11:05:43 +01:00
crypto_engine.c kthread: kthread worker API cleanup 2016-10-11 15:06:33 -07:00
crypto_null.c crypto: null - Remove default null blkcipher 2016-07-18 17:35:44 +08:00
crypto_user.c crypto: user - fix memory leak in crypto_report 2019-12-21 10:41:41 +01:00
crypto_wq.c crypto: crypto_wq - Fix late crypto work queue initialization 2014-03-21 21:54:28 +08:00
ctr.c crypto: ctr - Use skcipher in rfc3686 2016-07-18 17:35:39 +08:00
cts.c crypto: cts - Convert to skcipher 2016-07-18 17:35:44 +08:00
deflate.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
des_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
dh.c crypto: dh - Fix double free of ctx->p 2017-11-24 08:33:41 +01:00
dh_helper.c crypto: dh - Don't permit 'key' or 'g' size longer than 'p' 2017-11-21 09:23:29 +01:00
drbg.c crypto: drbg - set freed buffers to NULL 2018-05-01 15:13:08 -07:00
ecb.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
ecc.c crypto: ecdh - fix big endian bug in ECC library 2019-12-21 10:41:40 +01:00
ecc.h crypto: ecdh - make ecdh_shared_secret unique 2016-06-24 21:24:59 +08:00
ecc_curve_defs.h crypto: ecdh - Add ECDH software support 2016-06-23 18:29:57 +08:00
ecdh.c crypto: ecdh - make ecdh_shared_secret unique 2016-06-24 21:24:59 +08:00
ecdh_helper.c crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key() 2021-03-03 17:44:36 +01:00
echainiv.c crypto: echainiv - Replace chaining with multiplication 2016-09-13 18:44:57 +08:00
fcrypt.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
fips.c crypto: fips - Move fips_enabled sysctl into fips.c 2015-04-23 14:18:09 +08:00
gcm.c crypto: gcm - fix incompatibility between "gcm" and "gcm_base" 2019-05-21 18:49:00 +02:00
gf128mul.c
ghash-generic.c crypto: ghash - fix unaligned memory access in ghash_setkey() 2019-08-04 09:33:25 +02:00
hash_info.c keys, trusted: select hash algorithm for TPM2 chips 2015-12-20 15:27:12 +02:00
hmac.c crypto: hmac - require that the underlying hash algorithm is unkeyed 2017-12-20 10:07:15 +01:00
internal.h crypto: api - Fix race condition in crypto_spawn_alg 2020-02-14 16:31:02 -05:00
jitterentropy-kcapi.c crypto: jitterentropy - use ktime_get_ns as fallback 2016-06-24 21:24:58 +08:00
jitterentropy.c crypto: jitterentropy - Delete unnecessary checks before the function call "kzfree" 2015-06-25 23:18:33 +08:00
Kconfig crypto: ecdh - fix typo in KPP dependency of CRYPTO_ECDH 2018-02-03 17:05:34 +01:00
keywrap.c crypto: keywrap - memzero the correct memory 2016-02-01 22:27:05 +08:00
khazad.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
kpp.c crypto: kpp - Key-agreement Protocol Primitives API (KPP) 2016-06-23 18:29:56 +08:00
lrw.c gcc-10: avoid shadowing standard library 'free()' in crypto 2020-05-20 08:15:37 +02:00
lz4.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
lz4hc.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
lzo.c crypto: lzo - get rid of superfluous __GFP_REPEAT 2016-04-15 22:36:36 +08:00
Makefile crypto: improve gcc optimization flags for serpent and wp512 2017-03-18 19:14:26 +08:00
mcryptd.c crypto: hash - annotate algorithms taking optional key 2018-02-25 11:05:43 +01:00
md4.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
md5.c crypto: hash - add zero length message hash for shax and md5 2015-12-22 20:43:35 +08:00
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-" 2014-11-24 22:43:57 +08:00
pcbc.c crypto: pcbc - remove bogus memcpy()s with src == dest 2019-03-23 13:19:47 +01:00
pcrypt.c crypto: pcrypt - Do not clear MAY_SLEEP flag in original request 2020-02-14 16:31:01 -05:00
poly1305_generic.c crypto: poly1305 - remove ->setkey() method 2018-02-17 13:21:15 +01:00
proc.c crypto: fips - Move fips_enabled sysctl into fips.c 2015-04-23 14:18:09 +08:00
ripemd.h
rmd128.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
rmd160.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
rmd256.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
rmd320.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
rng.c crypto: rng - Do not free default RNG when it becomes unused 2015-06-22 15:49:18 +08:00
rsa-pkcs1pad.c crypto: fix a memory leak in rsa-kcs1pad's encryption mode 2019-11-25 09:53:02 +01:00
rsa.c crypto: rsa - Generate fixed-length output 2016-07-01 23:45:18 +08:00
rsa_helper.c crypto: rsa - fix buffer overread when stripping leading zeroes 2017-12-20 10:07:15 +01:00
rsaprivkey.asn1 crypto: rsa - Store rest of the private key components 2016-07-05 23:05:26 +08:00
rsapubkey.asn1 crypto: akcipher - Changes to asymmetric key API 2015-10-14 22:23:16 +08:00
salsa20_generic.c crypto: salsa20 - don't access already-freed walk.iv 2019-05-21 18:49:00 +02:00
scatterwalk.c crypto: scatterwalk - Remove unnecessary aliasing check in map_and_copy 2016-11-22 15:02:25 +08:00
seed.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
seqiv.c crypto: skcipher - Remove top-level givcipher interface 2016-07-18 17:35:46 +08:00
serpent_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
sha1_generic.c crypto: hash - add zero length message hash for shax and md5 2015-12-22 20:43:35 +08:00
sha3_generic.c crypto: sha3-generic - fixes for alignment and big endian operation 2018-02-03 17:05:34 +01:00
sha256_generic.c crypto: hash - add zero length message hash for shax and md5 2015-12-22 20:43:35 +08:00
sha512_generic.c crypto: sha512-generic - move to generic glue implementation 2015-04-10 21:39:41 +08:00
shash.c crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails 2019-03-23 13:19:45 +01:00
skcipher.c crypto: skcipher - Add missing API setkey checks 2017-06-07 12:07:46 +02:00
tcrypt.c crypto: tcrypt - fix ghash-generic speed test 2018-11-13 11:16:57 -08:00
tcrypt.h crypto: tcrypt - Add ChaCha20/Poly1305 speed tests 2015-07-17 21:20:20 +08:00
tea.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
testmgr.c crypto: testmgr - add guard to dst buffer for ahash_export 2016-10-02 22:33:43 +08:00
testmgr.h crypto: x86/poly1305 - fix overflow during partial reduction 2019-04-27 09:34:43 +02:00
tgr192.c crypto: tgr192 - fix unaligned memory access 2020-01-29 10:24:12 +01:00
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 2015-01-13 22:29:11 +11:00
vmac.c crypto: vmac - separate tfm and request context 2018-08-17 20:59:29 +02:00
wp512.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
xcbc.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
xor.c crypto: xor - Fix warning when XOR_SELECT_TEMPLATE is unset 2016-08-31 23:00:48 +08:00
xts.c gcc-10: avoid shadowing standard library 'free()' in crypto 2020-05-20 08:15:37 +02:00