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android_kernel_google_msm/crypto
Mathias Krause 30e39b7c57 crypto: user - fix info leaks in report API
commit 9a5467bf7b upstream.

Three errors resulting in kernel memory disclosure:

1/ The structures used for the netlink based crypto algorithm report API
are located on the stack. As snprintf() does not fill the remainder of
the buffer with null bytes, those stack bytes will be disclosed to users
of the API. Switch to strncpy() to fix this.

2/ crypto_report_one() does not initialize all field of struct
crypto_user_alg. Fix this to fix the heap info leak.

3/ For the module name we should copy only as many bytes as
module_name() returns -- not as much as the destination buffer could
hold. But the current code does not and therefore copies random data
from behind the end of the module name, as the module name is always
shorter than CRYPTO_MAX_ALG_NAME.

Also switch to use strncpy() to copy the algorithm's name and
driver_name. They are strings, after all.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-14 11:29:50 -07:00
..
async_tx crypto: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
ablkcipher.c crypto: user - fix info leaks in report API 2013-03-14 11:29:50 -07:00
aead.c crypto: user - fix info leaks in report API 2013-03-14 11:29:50 -07:00
aes_generic.c
af_alg.c
ahash.c crypto: user - fix info leaks in report API 2013-03-14 11:29:50 -07:00
algapi.c crypto: Add bulk algorithm registration interface 2012-01-26 13:35:49 +11:00
algboss.c
algif_hash.c
algif_skcipher.c
ansi_cprng.c crypto: ansi_cprng - enforce key != seed in fips mode 2011-11-09 12:04:06 +08:00
anubis.c
api.c
arc4.c
authenc.c
authencesn.c
blkcipher.c crypto: user - fix info leaks in report API 2013-03-14 11:29:50 -07:00
blowfish_common.c
blowfish_generic.c
camellia_generic.c crypto: camellia - rename camellia.c to camellia_generic.c 2012-03-14 17:25:55 +08:00
cast5.c
cast6.c
cbc.c
ccm.c crypto: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
chainiv.c
cipher.c
compress.c
crc32c.c crypto: crc32c should use library implementation 2012-03-23 16:58:38 -07:00
cryptd.c crypto: cryptd - disable softirqs in cryptd_queue_worker to prevent data corruption 2012-11-26 11:37:41 -08:00
crypto_null.c
crypto_user.c crypto: user - fix info leaks in report API 2013-03-14 11:29:50 -07:00
crypto_wq.c
ctr.c
cts.c
deflate.c
des_generic.c
ecb.c
eseqiv.c
fcrypt.c
fips.c
gcm.c
gf128mul.c
ghash-generic.c
hmac.c
internal.h
Kconfig um: several x86 hw-dependent crypto modules won't build on uml 2012-04-09 14:02:13 -04:00
khazad.c
krng.c
lrw.c crypto: lrw - add interface for parallelized cipher implementions 2011-11-09 11:50:31 +08:00
lzo.c
Makefile crypto: camellia - rename camellia.c to camellia_generic.c 2012-03-14 17:25:55 +08:00
md4.c
md5.c
michael_mic.c
pcbc.c
pcompress.c crypto: user - fix info leaks in report API 2013-03-14 11:29:50 -07:00
pcrypt.c crypto: pcrypt - Use the online cpumask as the default 2012-03-29 19:52:47 +08:00
proc.c
ripemd.h
rmd128.c
rmd160.c
rmd256.c
rmd320.c
rng.c crypto: user - fix info leaks in report API 2013-03-14 11:29:50 -07:00
salsa20_generic.c
scatterwalk.c crypto: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
seed.c
seqiv.c
serpent_generic.c crypto: serpent - rename serpent.c to serpent_generic.c 2011-11-30 16:12:44 +08:00
sha1_generic.c
sha256_generic.c
sha512_generic.c crypto: sha512 - Fix byte counter overflow in SHA-512 2012-04-05 20:34:20 +08:00
shash.c crypto: user - fix info leaks in report API 2013-03-14 11:29:50 -07:00
tcrypt.c crypto: tcrypt - add more camellia tests 2012-03-14 17:25:55 +08:00
tcrypt.h crypto: tcrypt - add xts(serpent) tests 2011-11-09 11:57:56 +08:00
tea.c
testmgr.c crypto: testmgr - add more camellia test vectors 2012-03-14 17:25:54 +08:00
testmgr.h crypto: testmgr - add more camellia test vectors 2012-03-14 17:25:54 +08:00
tgr192.c
twofish_common.c crypto: twofish-x86_64-3way - add lrw support 2011-11-09 11:53:32 +08:00
twofish_generic.c
vmac.c
wp512.c
xcbc.c
xor.c
xts.c crypto: xts: add interface for parallelized cipher implementations 2011-11-09 11:56:06 +08:00
zlib.c