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Ard Biesheuvel 67afaf1a0a 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 10:59:14 +02:00
..
internal
crypto: simd - allow registering multiple algorithms at once
2018-03-03 00:03:17 +08:00
acompress.h
crypto: api - check for ERR pointers in crypto_destroy_tfm()
2021-05-22 10:59:14 +02:00
aead.h
crypto: api - check for ERR pointers in crypto_destroy_tfm()
2021-05-22 10:59:14 +02:00
aes.h
…
akcipher.h
crypto: api - check for ERR pointers in crypto_destroy_tfm()
2021-05-22 10:59:14 +02:00
algapi.h
crypto: api - laying defines and checks for statically allocated buffers
2018-04-21 00:58:32 +08:00
authenc.h
…
b128ops.h
…
blowfish.h
…
cast5.h
…
cast6.h
…
cast_common.h
…
cbc.h
…
chacha20.h
crypto: chacha20 - Fix chacha20_block() keystream alignment (again)
2019-11-20 18:47:11 +01:00
cryptd.h
…
crypto_wq.h
…
ctr.h
…
des.h
…
dh.h
crypto: dh - add public key verification test
2018-07-09 00:26:22 +08:00
drbg.h
crypto: drbg - in-place cipher operation for CTR
2018-08-03 18:05:48 +08:00
ecdh.h
…
engine.h
crypto: engine - Permit to enqueue all async requests
2018-02-15 23:26:50 +08:00
gcm.h
…
gf128mul.h
…
ghash.h
…
hash_info.h
…
hash.h
crypto: api - check for ERR pointers in crypto_destroy_tfm()
2021-05-22 10:59:14 +02:00
hmac.h
…
if_alg.h
crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock()
2020-07-09 09:37:10 +02:00
kpp.h
crypto: api - check for ERR pointers in crypto_destroy_tfm()
2021-05-22 10:59:14 +02:00
mcryptd.h
…
md5.h
…
morus640_glue.h
crypto: morus - Add common SIMD glue code for MORUS
2018-05-19 00:15:18 +08:00
morus1280_glue.h
crypto: morus - Add common SIMD glue code for MORUS
2018-05-19 00:15:18 +08:00
morus_common.h
crypto: morus - Add generic MORUS AEAD implementations
2018-05-19 00:15:00 +08:00
null.h
…
padlock.h
…
pcrypt.h
…
pkcs7.h
…
poly1305.h
…
public_key.h
…
rng.h
crypto: api - check for ERR pointers in crypto_destroy_tfm()
2021-05-22 10:59:14 +02:00
scatterwalk.h
crypto: scatterwalk - remove scatterwalk_samebuf()
2018-08-03 18:06:04 +08:00
serpent.h
…
sha1_base.h
…
sha3.h
…
sha256_base.h
…
sha512_base.h
…
sha.h
crypto: sha512_generic - add a sha384 0-length pre-computed hash
2018-06-22 23:03:05 +08:00
skcipher.h
crypto: api - check for ERR pointers in crypto_destroy_tfm()
2021-05-22 10:59:14 +02:00
sm3_base.h
…
sm3.h
…
sm4.h
crypto: sm4 - export encrypt/decrypt routines to other drivers
2018-05-05 14:52:51 +08:00
twofish.h
…
xts.h
crypto: xts - remove xts_crypt()
2018-03-03 00:03:33 +08:00