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android_kernel_samsung_msm8976/crypto
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Eric Biggers f937783f87 crypto: user - support incremental algorithm dumps 
commit 0ac6b8fb23c724b015d9ca70a89126e8d1563166 upstream.

CRYPTO_MSG_GETALG in NLM_F_DUMP mode sometimes doesn't return all
registered crypto algorithms, because it doesn't support incremental
dumps.  crypto_dump_report() only permits itself to be called once, yet
the netlink subsystem allocates at most ~64 KiB for the skb being dumped
to.  Thus only the first recvmsg() returns data, and it may only include
a subset of the crypto algorithms even if the user buffer passed to
recvmsg() is large enough to hold all of them.

Fix this by using one of the arguments in the netlink_callback structure
to keep track of the current position in the algorithm list.  Then
userspace can do multiple recvmsg() on the socket after sending the dump
request.  This is the way netlink dumps work elsewhere in the kernel;
it's unclear why this was different (probably just an oversight).

Also fix an integer overflow when calculating the dump buffer size hint.

Fixes: a38f7907b9 ("crypto: Add userspace configuration API")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
[bwh: Backported to 3.16: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
 		2019-07-27 22:09:03 +02:00
..
asymmetric_keys crypto: crypto_memneq - add equality testing of memory regions w/o timing leaks 2019-07-27 21:42:52 +02:00
async_tx raid6test: use prandom_bytes() 2013-04-29 18:28:42 -07:00
842.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
Kconfig arm: crypto: Add optimized SHA-256/224 2015-09-16 18:20:15 +05:30
Makefile crypto: more robust crypto_memneq 2019-07-27 21:46:39 +02:00
ablk_helper.c crypto: ablk_helper - Replace memcpy with struct assignment 2015-03-19 14:52:28 -07:00
ablkcipher.c crypto: ablkcipher - fix crash flushing dcache in error path 2019-07-27 21:51:08 +02:00
aead.c crypto: user - fix info leaks in report API 2013-02-19 20:27:03 +08:00
aes_generic.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
af_alg.c crypto: af_alg - fix possible uninit-value in alg_bind() 2019-07-27 21:52:04 +02:00
ahash.c crypto: ahash - fix another early termination in hash walk 2019-07-27 22:08:30 +02:00
algapi.c crypto: algapi - fix NULL dereference in crypto_remove_spawns() 2019-07-27 21:46:25 +02:00
algboss.c crypto: algboss - Hold ref count on larval 2013-06-25 19:15:17 +08:00
algif_hash.c crypto: hash - prevent using keyed hashes without setting key 2019-07-27 21:49:17 +02:00
algif_skcipher.c crypto: AF_ALG - remove SGL terminator indicator when chaining 2019-07-27 21:44:42 +02:00
ansi_cprng.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
anubis.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
api.c crypto: api - Only abort operations on fatal signal 2015-11-09 10:12:59 -08:00
arc4.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
authenc.c crypto: authenc - fix parsing key with misaligned rta_len 2019-07-27 21:53:36 +02:00
authencesn.c crypto: crypto_memneq - add equality testing of memory regions w/o timing leaks 2019-07-27 21:42:52 +02:00
blkcipher.c crypto: blkcipher - fix crash flushing dcache in error path 2019-07-27 21:51:08 +02:00
blowfish_common.c
…
blowfish_generic.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
camellia_generic.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
cast5_generic.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
cast6_generic.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
cast_common.c crypto: cast5/cast6 - move lookup tables to shared module 2012-12-06 17:16:26 +08:00
cbc.c crypto: include crypto- module prefix in template 2015-01-29 17:40:57 -08:00
ccm.c crypto: crypto_memneq - add equality testing of memory regions w/o timing leaks 2019-07-27 21:42:52 +02:00
chainiv.c This is the 3.10.67 stable release 2015-04-24 18:04:40 -07:00
cipher.c
…
cmac.c crypto: include crypto- module prefix in template 2015-01-29 17:40:57 -08:00
compress.c
…
crc32.c crypto: hash - annotate algorithms taking optional key 2019-07-27 21:49:17 +02:00
crc32c.c crypto: hash - annotate algorithms taking optional key 2019-07-27 21:49:17 +02:00
cryptd.c crypto: hash - annotate algorithms taking optional key 2019-07-27 21:49:17 +02:00
crypto_null.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
crypto_user.c crypto: user - support incremental algorithm dumps 2019-07-27 22:09:03 +02:00
crypto_wq.c crypto: crypto_wq - Fix late crypto work queue initialization 2014-06-07 13:25:35 -07:00
ctr.c crypto: include crypto- module prefix in template 2015-01-29 17:40:57 -08:00
cts.c crypto: cts - fix crash on short inputs 2019-07-27 21:53:35 +02:00
deflate.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
des_generic.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
ecb.c crypto: include crypto- module prefix in template 2015-01-29 17:40:57 -08:00
eseqiv.c crypto: include crypto- module prefix in template 2015-01-29 17:40:57 -08:00
fcrypt.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
fips.c
…
gcm.c crypto: gcm - wait for crypto op not signal safe 2019-07-27 21:44:48 +02:00
gf128mul.c
…
ghash-generic.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
hmac.c crypto: hmac - require that the underlying hash algorithm is unkeyed 2019-07-27 21:45:46 +02:00
internal.h crypto: algboss - Hold ref count on larval 2013-06-25 19:15:17 +08:00
khazad.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
krng.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
lrw.c crypto: include crypto- module prefix in template 2015-01-29 17:40:57 -08:00
lzo.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
md4.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
md5.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
memneq.c crypto: memneq - fix for archs without efficient unaligned access 2019-07-27 21:46:40 +02:00
michael_mic.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
pcbc.c crypto: include crypto- module prefix in template 2015-01-29 17:40:57 -08:00
pcompress.c crypto: user - fix info leaks in report API 2013-02-19 20:27:03 +08:00
pcrypt.c pcrypt: use format specifier in kobject_add 2019-07-27 22:09:02 +02:00
proc.c
…
ripemd.h
…
rmd128.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
rmd160.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
rmd256.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
rmd320.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
rng.c crypto: user - fix info leaks in report API 2013-02-19 20:27:03 +08:00
salsa20_generic.c crypto: salsa20 - fix blkcipher_walk API usage 2019-07-27 21:45:46 +02:00
scatterwalk.c crypto: scatterwalk - Fix test in scatterwalk_done 2019-07-27 21:41:53 +02:00
seed.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00
seqiv.c crypto: include crypto- module prefix in template 2015-01-29 17:40:57 -08:00
serpent_generic.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
sha1_generic.c crypto: memzero_explicit - make sure to clear out sensitive data 2019-07-27 21:51:07 +02:00
sha256_generic.c crypto: memzero_explicit - make sure to clear out sensitive data 2019-07-27 21:51:07 +02:00
sha512_generic.c crypto: memzero_explicit - make sure to clear out sensitive data 2019-07-27 21:51:07 +02:00
shash.c crypto: hash - prevent using keyed hashes without setting key 2019-07-27 21:49:17 +02:00
tcrypt.c crypto: tcrypt - add async cipher speed tests for blowfish 2013-04-25 21:09:03 +08:00
tcrypt.h crypto: ctr - make rfc3686 asynchronous block cipher 2013-01-08 07:03:04 +01:00
tea.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
testmgr.c crypto: camellia - add AVX2/AES-NI/x86_64 assembler implementation of camellia cipher 2013-04-25 21:09:07 +08:00
testmgr.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2013-05-02 14:53:12 -07:00
tgr192.c crypto: memzero_explicit - make sure to clear out sensitive data 2019-07-27 21:51:07 +02:00
twofish_common.c
…
twofish_generic.c crypto: add missing crypto module aliases 2015-01-29 17:40:57 -08:00
vmac.c crypto: vmac - separate tfm and request context 2019-07-27 21:51:07 +02:00
wp512.c crypto: memzero_explicit - make sure to clear out sensitive data 2019-07-27 21:51:07 +02:00
xcbc.c crypto: include crypto- module prefix in template 2015-01-29 17:40:57 -08:00
xor.c add further __init annotations to crypto/xor.c 2012-10-11 13:42:32 +11:00
xts.c crypto: include crypto- module prefix in template 2015-01-29 17:40:57 -08:00
zlib.c crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:57 -08:00