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Herbert Xu ba1f292491 crypto: af_alg - Work around empty control messages without MSG_MORE 
commit c195d66a8a upstream.

The iwd daemon uses libell which sets up the skcipher operation with
two separate control messages.  As the first control message is sent
without MSG_MORE, it is interpreted as an empty request.

While libell should be fixed to use MSG_MORE where appropriate, this
patch works around the bug in the kernel so that existing binaries
continue to work.

We will print a warning however.

A separate issue is that the new kernel code no longer allows the
control message to be sent twice within the same request.  This
restriction is obviously incompatible with what iwd was doing (first
setting an IV and then sending the real control message).  This
patch changes the kernel so that this is explicitly allowed.

Reported-by: Caleb Jorden <caljorden@hotmail.com>
Fixes: f3c802a1f3 ("crypto: algif_aead - Only wake up when...")
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2024-03-26 18:22:43 -04:00
..
asymmetric_keys X.509: if signature is unsupported skip validation 2023-09-23 10:48:11 +02:00
async_tx async_pq: Remove VLA usage 2018-06-18 20:17:38 +05:30
842.c
…
Kconfig crypto: aes_ti - disable interrupts while accessing S-box 2019-02-12 19:46:58 +01:00
Makefile crypto: speck - remove Speck 2018-11-13 11:08:46 -08:00
ablkcipher.c crypto: ablkcipher - fix crash flushing dcache in error path 2018-08-03 18:06:04 +08:00
acompress.c crypto: acomp - allow registration of multiple acomps 2017-04-21 20:30:50 +08:00
aead.c crypto: aead - set CRYPTO_TFM_NEED_KEY if ->setkey() fails 2019-03-23 20:09:54 +01:00
aegis.h crypto: aegis/generic - fix for big endian systems 2018-11-13 11:08:46 -08:00
aegis128.c crypto: aegis - fix handling chunked inputs 2019-03-23 20:09:54 +01:00
aegis128l.c crypto: aegis - fix handling chunked inputs 2019-03-23 20:09:54 +01:00
aegis256.c crypto: aegis - fix handling chunked inputs 2019-03-23 20:09:54 +01:00
aes_generic.c crypto: aes-generic - drop alignment requirement 2017-02-11 17:50:43 +08:00
aes_ti.c crypto: aes_ti - disable interrupts while accessing S-box 2019-02-12 19:46:58 +01:00
af_alg.c crypto: af_alg - Work around empty control messages without MSG_MORE 2024-03-26 18:22:43 -04:00
ahash.c crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails 2019-03-23 20:09:54 +01:00
akcipher.c crypto: Replaced gcc specific attributes with macros from compiler.h 2017-01-13 00:24:39 +08:00
algapi.c crypto: api - Disallow identical driver names 2024-02-23 08:12:39 +01:00
algboss.c crypto: algboss - don't wait during notifier callback 2020-06-25 15:33:09 +02:00
algif_aead.c crypto: algif_aead - Only wake up when ctx->more is zero 2024-03-26 18:22:34 -04:00
algif_hash.c crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock() 2020-07-09 09:37:10 +02:00
algif_rng.c net: remove sock_no_poll 2018-05-26 09:16:44 +02:00
algif_skcipher.c crypto: algif_aead - Only wake up when ctx->more is zero 2024-03-26 18:22:34 -04:00
ansi_cprng.c
…
anubis.c
…
api.c crypto: api - check for ERR pointers in crypto_destroy_tfm() 2021-05-22 10:59:14 +02:00
arc4.c
…
authenc.c crypto: authenc - Fix sleep in atomic context in decrypt_tail 2022-04-15 14:14:42 +02:00
authencesn.c crypto: authencesn - Avoid twice completion call in decrypt path 2019-01-22 21:40:31 +01:00
blkcipher.c crypto: blkcipher - fix crash flushing dcache in error path 2018-08-03 18:06:04 +08:00
blowfish_common.c
…
blowfish_generic.c
…
camellia_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
cast5_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
cast6_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
cast_common.c
…
cbc.c crypto: do not free algorithm before using 2018-12-13 09:16:21 +01:00
ccm.c crypto: ccm - fix incompatibility between "ccm" and "ccm_base" 2019-05-22 07:37:43 +02:00
cfb.c crypto: cfb - remove bogus memcpy() with src == dest 2019-03-23 20:09:40 +01:00
chacha20_generic.c crypto: chacha20 - Fix chacha20_block() keystream alignment (again) 2019-11-20 18:47:11 +01:00
chacha20poly1305.c crypto: chacha20poly1305 - fix atomic sleep when using async algorithm 2019-07-26 09:14:19 +02:00
cipher.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
cmac.c crypto: algapi - make crypto_xor() and crypto_inc() alignment agnostic 2017-02-11 17:52:28 +08:00
compress.c
…
crc32_generic.c crypto: crc32-generic - remove __crc32_le() 2018-05-27 00:12:09 +08:00
crc32c_generic.c crypto: crc32c-generic - remove cra_alignmask 2018-05-27 00:12:08 +08:00
crct10dif_common.c
…
crct10dif_generic.c crypto: crct10dif-generic - fix use via crypto_shash_digest() 2019-05-22 07:37:37 +02:00
cryptd.c crypto: cryptd - Fix skcipher instance memory leak 2019-07-10 09:53:41 +02:00
crypto_engine.c crypto: engine - Permit to enqueue all async requests 2018-02-15 23:26:50 +08:00
crypto_null.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
crypto_user.c crypto: user - fix memory leak in crypto_report 2019-12-13 08:52:48 +01:00
crypto_wq.c
…
ctr.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
cts.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
deflate.c crypto: scomp - add support for deflate rfc1950 (zlib) 2017-04-24 18:11:08 +08:00
des_generic.c
…
dh.c crypto: dh - fix memory leak 2018-07-20 13:51:21 +08:00
dh_helper.c crypto: dh - make crypto_dh_encode_key() make robust 2018-08-03 18:06:06 +08:00
drbg.c crypto: drbg - Only fail when jent is unavailable in FIPS mode 2023-05-17 11:13:13 +02:00
ecb.c
…
ecc.c crypto: ecdh - fix big endian bug in ECC library 2019-12-13 08:52:48 +01:00
ecc.h crypto: ecc - Actually remove stack VLA usage 2018-04-21 00:58:29 +08:00
ecc_curve_defs.h crypto: ecdh - fix typo of P-192 b value 2018-07-20 13:51:22 +08:00
ecdh.c crypto: ecdh - avoid buffer overflow in ecdh_set_secret() 2021-01-12 20:10:20 +01:00
ecdh_helper.c crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key() 2021-03-04 09:39:41 +01:00
echainiv.c crypto: echainiv - Remove unused alg/spawn variable 2017-12-22 19:52:45 +11:00
fcrypt.c
…
fips.c
…
gcm.c crypto: gcm - fix incompatibility between "gcm" and "gcm_base" 2019-05-22 07:37:37 +02:00
gf128mul.c crypto: gf128mul - remove incorrect comment 2017-12-22 19:52:40 +11:00
ghash-generic.c crypto: ghash - fix unaligned memory access in ghash_setkey() 2019-07-26 09:14:19 +02:00
hash_info.c
…
hmac.c crypto: hmac - require that the underlying hash algorithm is unkeyed 2017-11-29 13:39:15 +11:00
internal.h crypto: api - Fix race condition in crypto_spawn_alg 2020-02-11 04:34:05 -08:00
jitterentropy-kcapi.c
…
jitterentropy.c
…
keywrap.c crypto: keywrap - Add missing ULL suffixes for 64-bit constants 2017-11-29 17:33:26 +11:00
khazad.c
…
kpp.c crypto: Replaced gcc specific attributes with macros from compiler.h 2017-01-13 00:24:39 +08:00
lrw.c gcc-10: avoid shadowing standard library 'free()' in crypto 2020-05-20 08:18:46 +02:00
lz4.c crypto: lz4 - fixed decompress function to return error code 2017-04-10 19:17:27 +08:00
lz4hc.c crypto: lz4 - fixed decompress function to return error code 2017-04-10 19:17:27 +08:00
lzo.c treewide: use kv[mz]alloc* rather than opencoded variants 2017-05-08 17:15:13 -07:00
mcryptd.c crypto: mcryptd - remove pointless wrapper functions 2018-02-15 23:26:45 +08:00
md4.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
md5.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
memneq.c
…
michael_mic.c
…
morus640.c crypto: morus - fix handling chunked inputs 2019-03-23 20:09:54 +01:00
morus1280.c crypto: morus - fix handling chunked inputs 2019-03-23 20:09:54 +01:00
pcbc.c crypto: pcbc - remove bogus memcpy()s with src == dest 2019-03-23 20:09:55 +01:00
pcrypt.c crypto: pcrypt - Fix hungtask for PADATA_RESET 2023-11-28 16:46:31 +00:00
poly1305_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
proc.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
ripemd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rmd128.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
rmd160.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
rmd256.c crypto: rmd256 - use swap macro in rmd256_transform 2018-07-27 19:28:36 +08:00
rmd320.c crypto: rmd320 - use swap macro in rmd320_transform 2018-07-27 19:28:36 +08:00
rng.c crypto: rng - ensure that the RNG is ready before using 2017-07-28 17:56:00 +08:00
rsa-pkcs1pad.c crypto: rsa-pkcs1pad - Use akcipher_request_complete 2023-03-11 16:31:37 +01:00
rsa.c crypto: rsa - Remove unneeded error assignment 2018-04-21 00:58:37 +08:00
rsa_helper.c kbuild: rename *-asn1.[ch] to *.asn1.[ch] 2018-04-07 19:04:02 +09:00
rsaprivkey.asn1
…
rsapubkey.asn1
…
salsa20_generic.c crypto: salsa20 - don't access already-freed walk.iv 2019-05-22 07:37:36 +02:00
scatterwalk.c crypto: scatterwalk - remove 'chain' argument from scatterwalk_crypto_chain() 2018-08-03 18:06:03 +08:00
scompress.c crypto: scompress - initialize per-CPU variables on each CPU 2024-01-25 14:33:39 -08:00
seed.c
…
seqiv.c crypto: seqiv - Handle EBUSY correctly 2023-03-11 16:31:36 +01:00
serpent_generic.c crypto: serpent - mark __serpent_setkey_sbox noinline 2019-07-26 09:14:13 +02:00
sha1_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
sha3_generic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux 2018-08-03 17:55:12 +08:00
sha256_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
sha512_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
shash.c crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-20 16:15:44 +02:00
simd.c crypto: simd - correctly take reqsize of wrapped skcipher into account 2018-12-01 09:37:32 +01:00
skcipher.c crypto: skcipher - Unmap pages after an external error 2019-10-11 18:20:52 +02:00
sm3_generic.c crypto: sm3 - fix undefined shift by >= width of value 2019-01-22 21:40:31 +01:00
sm4_generic.c crypto: sm4 - export encrypt/decrypt routines to other drivers 2018-05-05 14:52:51 +08:00
tcrypt.c crypto: tcrypt - Fix multibuffer skcipher speed test mem leak 2023-01-18 11:30:22 +01:00
tcrypt.h
…
tea.c
…
testmgr.c crypto: testmgr - fix sizeof() on COMP_BUF_SIZE 2019-12-01 09:16:13 +01:00
testmgr.h crypto: x86/poly1305 - fix overflow during partial reduction 2019-04-27 09:36:37 +02:00
tgr192.c crypto: tgr192 - fix unaligned memory access 2020-01-27 14:50:13 +01:00
twofish_common.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
twofish_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
vmac.c crypto: vmac - remove insecure version with hardcoded nonce 2018-07-01 21:00:44 +08:00
wp512.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
xcbc.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
xor.c kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK 2017-11-15 18:21:04 -08:00
xts.c gcc-10: avoid shadowing standard library 'free()' in crypto 2020-05-20 08:18:46 +02:00
zstd.c crypto: zstd - Add zstd support 2018-04-21 00:58:30 +08:00