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Eric Dumazet 2520611151 crypto: af_alg - get rid of alg_memory_allocated 
alg_memory_allocated does not seem to be really used.

alg_proto does have a .memory_allocated field, but no
corresponding .sysctl_mem.

This means sk_has_account() returns true, but all sk_prot_mem_limits()
users will trigger a NULL dereference [1].

THis was not a problem until SO_RESERVE_MEM addition.

general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 3591 Comm: syz-executor153 Not tainted 5.17.0-rc3-syzkaller-00316-gb81b1829e7e3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:sk_prot_mem_limits include/net/sock.h:1523 [inline]
RIP: 0010:sock_reserve_memory+0x1d7/0x330 net/core/sock.c:1000
Code: 08 00 74 08 48 89 ef e8 27 20 bb f9 4c 03 7c 24 10 48 8b 6d 00 48 83 c5 08 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 fb 1f bb f9 48 8b 6d 00 4c 89 ff 48
RSP: 0018:ffffc90001f1fb68 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff88814aabc000 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff90e18120
RBP: 0000000000000008 R08: dffffc0000000000 R09: fffffbfff21c3025
R10: fffffbfff21c3025 R11: 0000000000000000 R12: ffffffff8d109840
R13: 0000000000001002 R14: 0000000000000001 R15: 0000000000000001
FS:  0000555556e08300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc74416f130 CR3: 0000000073d9e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 sock_setsockopt+0x14a9/0x3a30 net/core/sock.c:1446
 __sys_setsockopt+0x5af/0x980 net/socket.c:2176
 __do_sys_setsockopt net/socket.c:2191 [inline]
 __se_sys_setsockopt net/socket.c:2188 [inline]
 __x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2188
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc7440fddc9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe98f07968 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc7440fddc9
RDX: 0000000000000049 RSI: 0000000000000001 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000004 R09: 00007ffe98f07990
R10: 0000000020000000 R11: 0000000000000246 R12: 00007ffe98f0798c
R13: 00007ffe98f079a0 R14: 00007ffe98f079e0 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:sk_prot_mem_limits include/net/sock.h:1523 [inline]
RIP: 0010:sock_reserve_memory+0x1d7/0x330 net/core/sock.c:1000
Code: 08 00 74 08 48 89 ef e8 27 20 bb f9 4c 03 7c 24 10 48 8b 6d 00 48 83 c5 08 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 fb 1f bb f9 48 8b 6d 00 4c 89 ff 48
RSP: 0018:ffffc90001f1fb68 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff88814aabc000 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff90e18120
RBP: 0000000000000008 R08: dffffc0000000000 R09: fffffbfff21c3025
R10: fffffbfff21c3025 R11: 0000000000000000 R12: ffffffff8d109840
R13: 0000000000001002 R14: 0000000000000001 R15: 0000000000000001
FS:  0000555556e08300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc74416f130 CR3: 0000000073d9e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000

Fixes: 2bb2f5fb21b0 ("net: add new socket option SO_RESERVE_MEM")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Wei Wang <weiwan@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-15 14:29:04 +00:00
..
asymmetric_keys
keys: X.509 public key issuer lookup without AKID
2022-01-09 00:18:42 +02:00
async_tx
async_xor: check src_offs is not NULL before updating it
2021-06-10 19:40:14 -07:00
842.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
acompress.c
crypto: api - permit users to specify numa node of acomp hardware
2020-07-09 18:25:23 +10:00
adiantum.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
aead.c
crypto: algapi - enforce that all instances have a ->free() method
2020-01-09 11:30:58 +08:00
aegis128-core.c
crypto: aegis128 - Move simd prototypes into aegis.h
2021-03-19 21:59:45 +11:00
aegis128-neon-inner.c
crypto: aegis128/neon - move final tag check to SIMD domain
2020-11-27 17:13:40 +11:00
aegis128-neon.c
crypto: aegis128 - Move simd prototypes into aegis.h
2021-03-19 21:59:45 +11:00
aegis.h
crypto: aegis128 - Move simd prototypes into aegis.h
2021-03-19 21:59:45 +11:00
aes_generic.c
crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN
2020-01-09 11:30:53 +08:00
aes_ti.c
crypto: aes - create AES library based on the fixed time AES code
2019-07-26 14:55:33 +10:00
af_alg.c
crypto: af_alg - get rid of alg_memory_allocated
2022-02-15 14:29:04 +00:00
ahash.c
crypto: ahash - Add init_tfm/exit_tfm
2020-08-28 16:58:28 +10:00
akcipher.c
crypto: algapi - enforce that all instances have a ->free() method
2020-01-09 11:30:58 +08:00
algapi.c
crypto: api - Move cryptomgr soft dependency into algapi
2022-02-05 15:10:07 +11:00
algboss.c
exit: Rename module_put_and_exit to module_put_and_kthread_exit
2021-12-13 12:04:45 -06:00
algif_aead.c
crypto: algif_aead - Do not set MAY_BACKLOG on the async path
2020-08-21 14:45:27 +10:00
algif_hash.c
net: make ->{get,set}sockopt in proto_ops optional
2020-07-19 18:16:41 -07:00
algif_rng.c
crypto: af_alg - add extra parameters for DRBG interface
2020-09-25 17:48:52 +10:00
algif_skcipher.c
crypto: algif_skcipher - EBUSY on aio should be an error
2020-08-21 14:45:26 +10:00
ansi_cprng.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
anubis.c
crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN
2020-01-09 11:30:53 +08:00
api.c
crypto: api - Move cryptomgr soft dependency into algapi
2022-02-05 15:10:07 +11:00
arc4.c
crypto: arc4 - mark ecb(arc4) skcipher as obsolete
2020-09-11 14:39:16 +10:00
authenc.c
crypto: algapi - use common mechanism for inheriting flags
2020-07-16 21:49:08 +10:00
authencesn.c
crypto: algapi - use common mechanism for inheriting flags
2020-07-16 21:49:08 +10:00
blake2b_generic.c
crypto: blake2b - update file comment
2021-01-03 08:41:39 +11:00
blake2s_generic.c
lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI
2022-02-04 19:22:32 +01:00
blowfish_common.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
blowfish_generic.c
crypto: blowfish - use unaligned accessors instead of alignmask
2021-02-10 17:55:56 +11:00
camellia_generic.c
crypto: camellia - use unaligned accessors instead of alignmask
2021-02-10 17:55:56 +11:00
cast5_generic.c
crypto: cast5 - use unaligned accessors instead of alignmask
2021-02-10 17:55:56 +11:00
cast6_generic.c
crypto: cast6 - use unaligned accessors instead of alignmask
2021-02-10 17:55:56 +11:00
cast_common.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 44
2019-05-24 17:27:12 +02:00
cbc.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
ccm.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
cfb.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
chacha20poly1305.c
crypto: algapi - use common mechanism for inheriting flags
2020-07-16 21:49:08 +10:00
chacha_generic.c
crypto: chacha_generic - remove unnecessary setkey() functions
2019-11-22 18:48:39 +08:00
cipher.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
cmac.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
compress.c
crypto: compress - remove crt_u.compress (struct compress_tfm)
2019-12-11 16:37:01 +08:00
crc32_generic.c
crypto: crc32-generic - Use SPDX-License-Identifier
2021-04-16 21:24:27 +10:00
crc32c_generic.c
crypto: crc32c_generic - delete and fix duplicated words
2020-08-21 14:45:25 +10:00
crct10dif_common.c
…
crct10dif_generic.c
crypto: crct10dif_generic - fix duplicated words
2020-08-21 14:45:25 +10:00
cryptd.c
crypto: algapi - use common mechanism for inheriting flags
2020-07-16 21:49:08 +10:00
crypto_engine.c
crypto: engine - Add KPP Support to Crypto Engine
2021-10-29 21:04:03 +08:00
crypto_null.c
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-07-08 20:57:08 -07:00
crypto_user_base.c
crypto: algapi - make unregistration functions return void
2019-12-20 14:58:35 +08:00
crypto_user_stat.c
crypto: skcipher - remove the "blkcipher" algorithm type
2019-11-01 13:38:32 +08:00
ctr.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
cts.c
crypto: algapi - use common mechanism for inheriting flags
2020-07-16 21:49:08 +10:00
curve25519-generic.c
crypto: curve25519 - implement generic KPP driver
2019-11-17 09:02:43 +08:00
deflate.c
mm, treewide: rename kzfree() to kfree_sensitive()
2020-08-07 11:33:22 -07:00
des_generic.c
crypto: remove CRYPTO_TFM_RES_WEAK_KEY
2020-01-09 11:30:53 +08:00
dh_helper.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
dh.c
crypto: dh - remove duplicate includes
2021-12-11 16:48:05 +11:00
drbg.c
crypto: drbg - ignore jitterentropy errors if not in FIPS mode
2021-12-11 16:48:06 +11:00
ecb.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
ecc_curve_defs.h
Merge branch 'ecc'
2021-03-26 19:55:55 +11:00
ecc.c
crypto: ecc - Export additional helper functions
2021-10-29 21:04:03 +08:00
ecdh_helper.c
crypto: ecdh - move curve_id of ECDH from the key to algorithm name
2021-03-13 00:04:03 +11:00
ecdh.c
crypto: ecc - Move ecc.h to include/crypto/internal
2021-10-29 21:04:03 +08:00
ecdsa.c
crypto: ecc - Move ecc.h to include/crypto/internal
2021-10-29 21:04:03 +08:00
ecdsasignature.asn1
crypto: ecdsa - Add support for ECDSA signature verification
2021-03-26 19:41:58 +11:00
echainiv.c
crypto: geniv - remove unneeded arguments from aead_geniv_alloc()
2020-07-16 21:49:07 +10:00
ecrdsa_defs.h
crypto: ecc - Move ecc.h to include/crypto/internal
2021-10-29 21:04:03 +08:00
ecrdsa_params.asn1
crypto: ecrdsa - add EC-RDSA (GOST 34.10) algorithm
2019-04-18 22:15:02 +08:00
ecrdsa_pub_key.asn1
crypto: ecrdsa - add EC-RDSA (GOST 34.10) algorithm
2019-04-18 22:15:02 +08:00
ecrdsa.c
crypto: ecc - Move ecc.h to include/crypto/internal
2021-10-29 21:04:03 +08:00
essiv.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
fcrypt.c
crypto: fcrypt - Remove 'do while(0)' loop for single statement macro
2021-04-02 18:28:13 +11:00
fips.c
crypto: fips - add FIPS test failure notification chain
2019-07-26 14:51:57 +10:00
gcm.c
mm, treewide: rename kzfree() to kfree_sensitive()
2020-08-07 11:33:22 -07:00
geniv.c
crypto: algapi - use common mechanism for inheriting flags
2020-07-16 21:49:08 +10:00
gf128mul.c
mm, treewide: rename kzfree() to kfree_sensitive()
2020-08-07 11:33:22 -07:00
ghash-generic.c
crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN
2020-01-09 11:30:53 +08:00
hash_info.c
crypto: rename sm3-256 to sm3 in hash_algo_name
2020-02-18 07:35:49 -05:00
hmac.c
crypto: algapi - use common mechanism for inheriting flags
2020-07-16 21:49:08 +10:00
internal.h
crypto: api - Fix built-in testing dependency failures
2021-09-24 16:03:05 +08:00
jitterentropy-kcapi.c
crypto: jitter - don't limit ->health_failure check to FIPS mode
2021-12-11 16:48:06 +11:00
jitterentropy.c
crypto: jitter - add oversampling of noise source
2021-12-31 18:10:54 +11:00
jitterentropy.h
crypto: jitter - don't limit ->health_failure check to FIPS mode
2021-12-11 16:48:06 +11:00
Kconfig
lib/crypto: add prompts back to crypto libraries
2022-01-18 13:03:55 +01:00
kdf_sp800108.c
crypto: kdf - add SP800-108 counter key derivation function
2021-11-26 16:25:17 +11:00
keywrap.c
crypto: keywrap - Remove else after break statement
2021-04-02 18:28:13 +11:00
khazad.c
crypto: khazad,wp512 - remove leading spaces before tabs
2021-05-28 15:11:44 +08:00
kpp.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
lrw.c
crypto: Replace HTTP links with HTTPS ones
2020-07-23 17:34:20 +10:00
lz4.c
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-07-08 20:57:08 -07:00
lz4hc.c
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-07-08 20:57:08 -07:00
lzo-rle.c
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-07-08 20:57:08 -07:00
lzo.c
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-07-08 20:57:08 -07:00
Makefile
crypto: kdf - add SP800-108 counter key derivation function
2021-11-26 16:25:17 +11:00
md4.c
crypto: make all generic algorithms set cra_driver_name
2019-06-13 14:31:39 +08:00
md5.c
crypto: md5 - remove unused macros
2020-02-28 08:43:21 +08:00
memneq.c
…
michael_mic.c
crypto: michael_mic - fix broken misalignment handling
2021-02-10 17:55:55 +11:00
nhpoly1305.c
crypto: poly1305 - add new 32 and 64-bit generic versions
2020-01-16 15:18:12 +08:00
ofb.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
pcbc.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
pcrypt.c
crypto: pcrypt - Delay write to padata->info
2021-10-29 21:04:04 +08:00
poly1305_generic.c
crypto: poly1305 - add new 32 and 64-bit generic versions
2020-01-16 15:18:12 +08:00
proc.c
crypto: proc - Removing some useless only space lines
2020-09-25 17:48:15 +10:00
ripemd.h
crypto: rmd320 - remove RIPE-MD 320 hash algorithm
2021-01-29 16:07:04 +11:00
rmd160.c
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-07-08 20:57:08 -07:00
rng.c
crypto: rng - fix crypto_rng_reset() refcounting when !CRYPTO_STATS
2021-04-02 18:28:12 +11:00
rsa_helper.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
rsa-pkcs1pad.c
crypto: algapi - Remove skbuff.h inclusion
2020-08-20 14:04:28 +10:00
rsa.c
crypto: rsa - limit key size to 2048 in FIPS mode
2021-11-26 16:25:18 +11:00
rsaprivkey.asn1
crypto: rsa - Store rest of the private key components
2016-07-05 23:05:26 +08:00
rsapubkey.asn1
crypto: akcipher - Changes to asymmetric key API
2015-10-14 22:23:16 +08:00
scatterwalk.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
scompress.c
crypto: algapi - make unregistration functions return void
2019-12-20 14:58:35 +08:00
seed.c
crypto: seed - remove trailing semicolon in macro definition
2020-12-04 18:13:16 +11:00
seqiv.c
mm, treewide: rename kzfree() to kfree_sensitive()
2020-08-07 11:33:22 -07:00
serpent_generic.c
crypto: serpent - Fix sparse byte order warnings
2021-03-07 15:13:15 +11:00
sha1_generic.c
crypto: sha - split sha.h into sha1.h and sha2.h
2020-11-20 14:45:33 +11:00
sha3_generic.c
crypto: Replace HTTP links with HTTPS ones
2020-07-23 17:34:20 +10:00
sha256_generic.c
crypto: sha256 - remove duplicate generic hash init function
2021-12-31 18:10:54 +11:00
sha512_generic.c
crypto: sha512 - remove imaginary and mystifying clearing of variables
2021-08-27 16:30:19 +08:00
shash.c
crypto: shash - avoid comparing pointers to exported functions under CFI
2021-06-17 15:07:31 +08:00
simd.c
crypto: algapi - use common mechanism for inheriting flags
2020-07-16 21:49:08 +10:00
skcipher.c
crypto: skcipher - in_irq() cleanup
2021-08-21 15:44:58 +08:00
sm2.c
crypto: sm2 - fix a memory leak in sm2
2021-06-11 15:03:30 +08:00
sm2signature.asn1
crypto: sm2 - introduce OSCCA SM2 asymmetric cipher algorithm
2020-09-25 17:48:54 +10:00
sm3_generic.c
crypto: sm3 - export crypto_sm3_final function
2020-09-25 17:48:53 +10:00
sm4_generic.c
crypto: arm64/sm4-ce - Make dependent on sm4 library instead of sm4-generic
2021-07-30 10:58:30 +08:00
streebog_generic.c
crypto: streebog - remove two unused variables
2019-08-15 21:52:14 +10:00
tcrypt.c
crypto: tcrypt - fix skcipher multi-buffer tests for 1420B blocks
2021-10-22 20:25:03 +08:00
tcrypt.h
crypto: tcrypt - Add support for hash speed testing with keys
2020-08-21 14:45:27 +10:00
tea.c
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-07-08 20:57:08 -07:00
testmgr.c
crypto: des - disallow des3 in FIPS mode
2021-11-26 16:25:18 +11:00
testmgr.h
crypto: testmgr - Fix wrong test case of RSA
2021-11-20 15:02:08 +11:00
twofish_common.c
crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN
2020-01-09 11:30:53 +08:00
twofish_generic.c
crypto: twofish - use unaligned accessors instead of alignmask
2021-02-10 17:55:57 +11:00
vmac.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
wp512.c
crypto: wp512 - correct a non-kernel-doc comment
2021-08-12 19:32:17 +08:00
xcbc.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
xor.c
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2021-02-21 17:23:56 -08:00
xts.c
crypto: remove cipher routines from public crypto API
2021-01-03 08:41:35 +11:00
xxhash_generic.c
crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN
2020-01-09 11:30:53 +08:00
zstd.c
lib: zstd: Add kernel-specific API
2021-11-08 16:55:21 -08:00