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Andrey Ryabinin 2b95fda2c4 X.509: Fix double free in x509_cert_parse() [ver #3] 
We shouldn't free cert->pub->key in x509_cert_parse() because
x509_free_certificate() also does this:
	BUG: Double free or freeing an invalid pointer
	...
	Call Trace:
	 [<ffffffff81896c20>] dump_stack+0x63/0x83
	 [<ffffffff81356571>] kasan_object_err+0x21/0x70
	 [<ffffffff81356ed9>] kasan_report_double_free+0x49/0x60
	 [<ffffffff813561ad>] kasan_slab_free+0x9d/0xc0
	 [<ffffffff81350b7a>] kfree+0x8a/0x1a0
	 [<ffffffff81844fbf>] public_key_free+0x1f/0x30
	 [<ffffffff818455d4>] x509_free_certificate+0x24/0x90
	 [<ffffffff818460bc>] x509_cert_parse+0x2bc/0x300
	 [<ffffffff81846cae>] x509_key_preparse+0x3e/0x330
	 [<ffffffff818444cf>] asymmetric_key_preparse+0x6f/0x100
	 [<ffffffff8178bec0>] key_create_or_update+0x260/0x5f0
	 [<ffffffff8178e6d9>] SyS_add_key+0x199/0x2a0
	 [<ffffffff821d823b>] entry_SYSCALL_64_fastpath+0x1e/0xad
	Object at ffff880110bd1900, in cache kmalloc-512 size: 512
	....
	Freed:
	PID = 2579
	[<ffffffff8104283b>] save_stack_trace+0x1b/0x20
	[<ffffffff813558f6>] save_stack+0x46/0xd0
	[<ffffffff81356183>] kasan_slab_free+0x73/0xc0
	[<ffffffff81350b7a>] kfree+0x8a/0x1a0
	[<ffffffff818460a3>] x509_cert_parse+0x2a3/0x300
	[<ffffffff81846cae>] x509_key_preparse+0x3e/0x330
	[<ffffffff818444cf>] asymmetric_key_preparse+0x6f/0x100
	[<ffffffff8178bec0>] key_create_or_update+0x260/0x5f0
	[<ffffffff8178e6d9>] SyS_add_key+0x199/0x2a0
	[<ffffffff821d823b>] entry_SYSCALL_64_fastpath+0x1e/0xad

Fixes: db6c43bd21 ("crypto: KEYS: convert public key and digsig asym to the akcipher api")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2016-11-25 12:57:48 +11:00
..
asymmetric_keys X.509: Fix double free in x509_cert_parse() [ver #3] 2016-11-25 12:57:48 +11:00
async_tx async_pq_val: fix DMA memory leak 2016-10-05 06:18:09 +05:30
.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 - Remove top-level givcipher interface 2016-07-18 17:35:46 +08:00
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 - Forbid bind(2) when nokey child sockets are present 2016-01-18 18:16:33 +08:00
ahash.c crypto: ahash - Add padding in crypto_ahash_extsize 2016-07-01 23:45:03 +08:00
akcipher.c crypto: akcipher - add akcipher declarations needed by templates. 2015-12-09 20:03:57 +08:00
algapi.c crypto: api - Add crypto_inst_setname 2016-07-01 23:45:11 +08:00
algboss.c crypto: algboss - Remove reference to nivaead 2015-08-17 16:53:41 +08:00
algif_aead.c crypto: af_alg - add async support to algif_aead 2016-04-05 20:35:41 +08:00
algif_hash.c crypto: algif_hash - Fix result clobbering in recvmsg 2016-11-22 15:02:24 +08:00
algif_rng.c crypto: algif_rng - Remove obsolete const-removal cast 2015-04-22 09:30:21 +08:00
algif_skcipher.c crypto: algif_skcipher - Do not set MAY_BACKLOG on the async path 2016-02-06 15:23:55 +08:00
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 - Only abort operations on fatal signal 2015-10-20 21:59:25 +08:00
arc4.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
authenc.c crypto: authenc - Use skcipher 2016-07-18 17:35:38 +08:00
authencesn.c crypto: authencesn - Use skcipher 2016-07-18 17:35:39 +08:00
blkcipher.c crypto: skcipher - Fix blkcipher walk OOM crash 2016-09-13 18:44:57 +08:00
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 - Use skcipher 2016-07-18 17:35:40 +08:00
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 - Use skcipher 2016-07-18 17:35:41 +08:00
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: crc32 - Rename generic implementation 2016-01-30 22:11:22 +08:00
crc32c_generic.c crypto: crc32c - Fix crc32c soft dependency 2016-01-19 15:52:10 +08:00
crct10dif_common.c crypto: crct10dif - Add fallback for broken initrds 2013-09-12 15:31:34 +10:00
crct10dif_generic.c crypto: squash lines for simple wrapper functions 2016-09-13 20:27:26 +08:00
cryptd.c crypto: cryptd - initialize child shash_desc on import 2016-09-07 21:04:36 +08:00
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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-07-21 12:26:55 +08:00
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: rsa - Generate fixed-length output 2016-07-01 23:45:18 +08:00
dh_helper.c crypto: dh - Add DH software implementation 2016-06-23 18:29:56 +08:00
drbg.c crypto: drbg - fix error return code 2016-08-24 21:04:49 +08:00
ecb.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
ecc.c crypto: ecdh - make ecdh_shared_secret unique 2016-06-24 21:24:59 +08:00
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 - Add ECDH software support 2016-06-23 18:29:57 +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 IV buffer size in crypto_gcm_setkey 2016-10-02 22:31:52 +08:00
gf128mul.c crypto: gf128mul - fix call to memset() 2011-07-08 17:21:21 +08:00
ghash-generic.c crypto: ghash-generic - move common definitions to a new header file 2016-10-02 22:26:40 +08:00
hash_info.c keys, trusted: select hash algorithm for TPM2 chips 2015-12-20 15:27:12 +02:00
hmac.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
internal.h crypto: api - Add crypto_type_has_alg helper 2016-01-25 22:42:12 +08:00
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: powerpc - CRYPT_CRC32C_VPMSUM should depend on ALTIVEC 2016-08-09 18:25:09 +08:00
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 crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
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: skcipher - Remove top-level givcipher interface 2016-07-18 17:35:46 +08:00
mcryptd.c crypto: squash lines for simple wrapper functions 2016-09-13 20:27:26 +08:00
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: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
pcrypt.c crypto: aead - Remove CRYPTO_ALG_AEAD_NEW flag 2015-08-17 16:53:53 +08:00
poly1305_generic.c crypto: poly1305 - Export common Poly1305 helpers 2015-07-17 21:20:26 +08:00
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: rsa-pkcs1pad - Handle leading zero for decryption 2016-09-22 17:42:08 +08:00
rsa.c crypto: rsa - Generate fixed-length output 2016-07-01 23:45:18 +08:00
rsa_helper.c crypto: rsa - allow keys >= 2048 bits in FIPS mode 2016-08-24 21:07:10 +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: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
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 - Add missing ULL suffixes for 64-bit constants 2016-08-08 23:43:46 +08:00
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 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-03-17 11:22:54 -07:00
skcipher.c crypto: skcipher - Remove top-level givcipher interface 2016-07-18 17:35:46 +08:00
tcrypt.c crypto: sha3 - Add HMAC-SHA3 test modes and test vectors 2016-07-01 23:45:24 +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: FIPS - allow tests to be disabled in FIPS mode 2016-08-31 23:21:25 +08:00
tgr192.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
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: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
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 crypto: xts - fix a little typo 2016-08-16 17:16:49 +08:00