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Ard Biesheuvel 417ec24258 crypto: api - check for ERR pointers in crypto_destroy_tfm() 
[ Upstream commit 83681f2beb ]

Given that crypto_alloc_tfm() may return ERR pointers, and to avoid
crashes on obscure error paths where such pointers are presented to
crypto_destroy_tfm() (such as [0]), add an ERR_PTR check there
before dereferencing the second argument as a struct crypto_tfm
pointer.

[0] https://lore.kernel.org/linux-crypto/000000000000de949705bc59e0f6@google.com/

Reported-by: syzbot+12cf5fbfdeba210a89dd@syzkaller.appspotmail.com
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-22 10:57:16 +02:00
..
asymmetric_keys
crypto: asymmetric_keys - select CRYPTO_HASH where needed
2019-07-31 07:28:31 +02:00
async_tx
…
.gitignore
…
842.c
…
ablk_helper.c
…
ablkcipher.c
crypto: skcipher - Fix -Wstringop-truncation warnings
2018-10-03 17:00:45 -07:00
acompress.c
…
aead.c
…
aes_generic.c
…
aes_ti.c
crypto: aes_ti - disable interrupts while accessing S-box
2019-02-12 19:45:57 +01:00
af_alg.c
crypto: af_alg - avoid undefined behavior accessing salg_name
2020-12-29 13:46:50 +01:00
ahash.c
crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
2019-03-23 14:35:18 +01:00
akcipher.c
…
algapi.c
crypto: api - Fix race condition in crypto_spawn_alg
2020-02-14 16:32:14 -05:00
algboss.c
crypto: algboss - don't wait during notifier callback
2020-06-25 15:42:01 +02:00
algif_aead.c
crypto: algif_aead - Do not set MAY_BACKLOG on the async path
2020-10-29 09:07:00 +01:00
algif_hash.c
crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock()
2020-07-09 09:36:30 +02:00
algif_rng.c
…
algif_skcipher.c
crypto: algif_skcipher - EBUSY on aio should be an error
2020-10-29 09:07:01 +01:00
ansi_cprng.c
…
anubis.c
…
api.c
crypto: api - check for ERR pointers in crypto_destroy_tfm()
2021-05-22 10:57:16 +02:00
arc4.c
…
authenc.c
crypto: authenc - fix parsing key with misaligned rta_len
2019-01-23 08:09:48 +01:00
authencesn.c
crypto: authencesn - Avoid twice completion call in decrypt path
2019-01-23 08:09:47 +01:00
blkcipher.c
crypto: skcipher - Fix -Wstringop-truncation warnings
2018-10-03 17:00:45 -07:00
blowfish_common.c
…
blowfish_generic.c
…
camellia_generic.c
…
cast5_generic.c
…
cast6_generic.c
…
cast_common.c
…
cbc.c
…
ccm.c
crypto: ccm - fix incompatibility between "ccm" and "ccm_base"
2019-05-21 18:50:20 +02:00
chacha20_generic.c
…
chacha20poly1305.c
crypto: chacha20poly1305 - fix atomic sleep when using async algorithm
2019-07-31 07:28:35 +02:00
cipher.c
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cmac.c
…
compress.c
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crc32_generic.c
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crc32c_generic.c
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crct10dif_common.c
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crct10dif_generic.c
crypto: crct10dif-generic - fix use via crypto_shash_digest()
2019-05-21 18:50:15 +02:00
cryptd.c
crypto: cryptd - Fix skcipher instance memory leak
2019-07-10 09:54:38 +02:00
crypto_engine.c
…
crypto_null.c
…
crypto_user.c
crypto: user - fix memory leak in crypto_report
2019-12-17 20:38:55 +01:00
crypto_wq.c
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ctr.c
…
cts.c
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deflate.c
…
des_generic.c
…
dh_helper.c
…
dh.c
…
drbg.c
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ecb.c
…
ecc_curve_defs.h
…
ecc.c
crypto: ecdh - fix big endian bug in ECC library
2019-12-17 20:38:55 +01:00
ecc.h
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ecdh_helper.c
crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key()
2021-03-03 18:22:43 +01:00
ecdh.c
crypto: ecdh - avoid buffer overflow in ecdh_set_secret()
2021-01-12 20:09:09 +01:00
echainiv.c
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fcrypt.c
…
fips.c
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gcm.c
crypto: gcm - fix incompatibility between "gcm" and "gcm_base"
2019-05-21 18:50:15 +02:00
gf128mul.c
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ghash-generic.c
crypto: ghash - fix unaligned memory access in ghash_setkey()
2019-07-31 07:28:35 +02:00
hash_info.c
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hmac.c
…
internal.h
crypto: api - Fix race condition in crypto_spawn_alg
2020-02-14 16:32:14 -05:00
jitterentropy-kcapi.c
…
jitterentropy.c
…
Kconfig
crypto: aes_ti - disable interrupts while accessing S-box
2019-02-12 19:45:57 +01:00
keywrap.c
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khazad.c
…
kpp.c
…
lrw.c
gcc-10: avoid shadowing standard library 'free()' in crypto
2020-05-20 08:17:11 +02:00
lz4.c
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lz4hc.c
…
lzo.c
…
Makefile
crypto: aes-generic - fix aes-generic regression on powerpc
2018-09-19 22:43:37 +02:00
mcryptd.c
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md4.c
…
md5.c
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memneq.c
…
michael_mic.c
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pcbc.c
crypto: pcbc - remove bogus memcpy()s with src == dest
2019-03-23 14:35:21 +01:00
pcrypt.c
crypto: pcrypt - Do not clear MAY_SLEEP flag in original request
2020-02-14 16:32:14 -05:00
poly1305_generic.c
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proc.c
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ripemd.h
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rmd128.c
…
rmd160.c
…
rmd256.c
…
rmd320.c
…
rng.c
…
rsa_helper.c
…
rsa-pkcs1pad.c
crypto: fix a memory leak in rsa-kcs1pad's encryption mode
2019-11-20 18:00:47 +01:00
rsa.c
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rsaprivkey.asn1
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rsapubkey.asn1
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salsa20_generic.c
crypto: salsa20 - don't access already-freed walk.iv
2019-05-21 18:50:19 +02:00
scatterwalk.c
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scompress.c
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seed.c
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seqiv.c
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serpent_generic.c
crypto: serpent - mark __serpent_setkey_sbox noinline
2019-07-31 07:28:30 +02:00
sha1_generic.c
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sha3_generic.c
…
sha256_generic.c
…
sha512_generic.c
…
shash.c
crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
2019-03-23 14:35:18 +01:00
simd.c
crypto: simd - correctly take reqsize of wrapped skcipher into account
2018-12-01 09:42:53 +01:00
skcipher.c
crypto: skcipher - Unmap pages after an external error
2019-10-11 18:18:32 +02:00
tcrypt.c
crypto: tcrypt - fix ghash-generic speed test
2018-11-13 11:15:07 -08:00
tcrypt.h
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tea.c
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testmgr.c
crypto: testmgr - skip crc32c context test for ahash algorithms
2019-03-23 14:35:18 +01:00
testmgr.h
crypto: x86/poly1305 - fix overflow during partial reduction
2019-04-27 09:35:37 +02:00
tgr192.c
crypto: tgr192 - fix unaligned memory access
2020-01-27 14:46:13 +01:00
twofish_common.c
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twofish_generic.c
…
vmac.c
crypto: vmac - separate tfm and request context
2018-08-17 21:01:10 +02:00
wp512.c
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xcbc.c
…
xor.c
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xts.c
gcc-10: avoid shadowing standard library 'free()' in crypto
2020-05-20 08:17:11 +02:00