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Daniele Alessandrelli db5d0634e2 crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key() 
[ Upstream commit a53ab94eb6850c3657392e2d2ce9b38c387a2633 ]

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: 3c4b23901a0c7 ("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
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
2015-01-13 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
crypto: cipher - Fix checkpatch errors
2010-02-16 20:31:37 +08:00
cmac.c
crypto: include crypto- module prefix in template
2014-11-26 20:06:30 +08:00
compress.c
crypto: compress - Fix checkpatch errors
2010-02-16 20:31:04 +08:00
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_helper.c
crypto: dh - Don't permit 'key' or 'g' size longer than 'p'
2017-11-21 09:23:29 +01:00
dh.c
crypto: dh - Fix double free of ctx->p
2017-11-24 08:33:41 +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_curve_defs.h
crypto: ecdh - Add ECDH software support
2016-06-23 18:29:57 +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
ecdh_helper.c
crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key()
2021-03-03 17:44:36 +01:00
ecdh.c
crypto: ecdh - make ecdh_shared_secret unique
2016-06-24 21:24:59 +08:00
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
crypto: gf128mul - fix call to memset()
2011-07-08 17:21:21 +08:00
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_helper.c
crypto: rsa - fix buffer overread when stripping leading zeroes
2017-12-20 10:07:15 +01:00
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
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