general protection fault in scatterwalk

general protection fault in scatterwalk_copychunks
Status: upstream: reported C repro on 2019/04/21 07:15
Reported-by: syzbot+bc78bb581922f5035c8d@syzkaller.appspotmail.com
First crash: 210d, last: 14h52m

similar bugs (4):
Kernel	Title	Repro	Count	Last	Reported	Patched	Status
upstream	general protection fault in scatterwalk_copychunks (3)	C	95	390d	516d	0/14	closed as invalid on 2019/06/10 23:08
upstream	general protection fault in scatterwalk_copychunks (2)	C	141	681d	708d	3/14	fixed on 2018/01/11 01:23
linux-4.19	general protection fault in scatterwalk_copychunks	C	19	3d04h	149d	0/1	upstream: reported C repro on 2019/06/20 18:59
upstream	general protection fault in scatterwalk_copychunks	C	414	709d	718d	3/14	fixed on 2017/12/08 02:32

Sample crash report:

random: sshd: uninitialized urandom read (32 bytes read)
audit: type=1400 audit(1555828599.751:36): avc:  denied  { map } for  pid=7065 comm="syz-executor423" path="/root/syz-executor423430392" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 7065 Comm: syz-executor423 Not tainted 4.14.113 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880a9ec4500 task.stack: ffff88809de08000
RIP: 0010:scatterwalk_start include/crypto/scatterwalk.h:86 [inline]
RIP: 0010:scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline]
RIP: 0010:scatterwalk_pagedone include/crypto/scatterwalk.h:95 [inline]
RIP: 0010:scatterwalk_copychunks+0x4d6/0x6b0 crypto/scatterwalk.c:55
RSP: 0018:ffff88809de0f3d8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000001000 RCX: ffff8880a0dcd534
RDX: 0000000000000002 RSI: ffff888098480000 RDI: ffff8880a0dcd528
RBP: ffff88809de0f448 R08: ffffed1012136352 R09: 0000000000000002
R10: ffffed1012136351 R11: ffff8880909b1a8c R12: 0000000000001000
R13: 0000000000000000 R14: ffff88809de0f4a0 R15: 0000000000003000
FS:  0000000001e90880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000455350 CR3: 000000009df46000 CR4: 00000000001406f0
Call Trace:
 scatterwalk_map_and_copy crypto/scatterwalk.c:72 [inline]
 scatterwalk_map_and_copy+0x12f/0x1d0 crypto/scatterwalk.c:60
 gcmaes_encrypt.constprop.0+0x1d2/0xb90 arch/x86/crypto/aesni-intel_glue.c:778
 generic_gcmaes_encrypt+0xf4/0x130 arch/x86/crypto/aesni-intel_glue.c:1111
 crypto_aead_encrypt include/crypto/aead.h:330 [inline]
 gcmaes_wrapper_encrypt+0x101/0x170 arch/x86/crypto/aesni-intel_glue.c:945
 crypto_aead_encrypt include/crypto/aead.h:330 [inline]
 tls_do_encryption net/tls/tls_sw.c:234 [inline]
 tls_push_record+0x90b/0x1210 net/tls/tls_sw.c:270
 tls_sw_sendpage+0x437/0xb50 net/tls/tls_sw.c:617
 inet_sendpage+0x15a/0x580 net/ipv4/af_inet.c:779
 kernel_sendpage+0x95/0xf0 net/socket.c:3415
 sock_sendpage+0x8b/0xc0 net/socket.c:871
 pipe_to_sendpage+0x244/0x340 fs/splice.c:451
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x351/0x790 fs/splice.c:626
 splice_from_pipe+0xf0/0x150 fs/splice.c:661
 generic_splice_sendpage+0x3c/0x50 fs/splice.c:832
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x126/0x1a0 fs/splice.c:1018
 splice_direct_to_actor+0x2a1/0x7b0 fs/splice.c:973
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1440
 SYSC_sendfile64 fs/read_write.c:1501 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1487
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4403e9
RSP: 002b:00007ffe6ad1e9c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004403e9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 0000000000000012 R09: 65732f636f72702f
R10: 0000000000010010 R11: 0000000000000246 R12: 0000000000401cd0
R13: 0000000000401d60 R14: 0000000000000000 R15: 0000000000000000
Code: 00 00 fc ff df 80 3c 02 00 0f 85 37 01 00 00 49 8d 45 10 4d 89 2e 48 89 c2 48 89 45 c0 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 7d 01 00 00 48 b8 00 00 00 
RIP: scatterwalk_start include/crypto/scatterwalk.h:86 [inline] RSP: ffff88809de0f3d8
RIP: scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline] RSP: ffff88809de0f3d8
RIP: scatterwalk_pagedone include/crypto/scatterwalk.h:95 [inline] RSP: ffff88809de0f3d8
RIP: scatterwalk_copychunks+0x4d6/0x6b0 crypto/scatterwalk.c:55 RSP: ffff88809de0f3d8
---[ end trace 4e117918face6864 ]---

Crashes (67):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Maintainers
ci2-linux-4-14	2019/04/21 06:39	linux-4.14.y	68d7a45e	b0e8efcb	.config	log	report	syz	C	davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/09/02 13:02	linux-4.14.y	01fd1694	db7c31ca	.config	log	report	syz	C	davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/11/17 00:05	linux-4.14.y	775d01b6	cdac920b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/11/14 10:56	linux-4.14.y	775d01b6	048f2d49	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/10/19 16:53	linux-4.14.y	b98aebd2	8c88c9c1	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/09/09 07:11	linux-4.14.y	414510bc	a60cb4cd	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/09/06 04:26	linux-4.14.y	01fd1694	c16be727	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/09/04 09:23	linux-4.14.y	01fd1694	526709ff	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/09/01 14:26	linux-4.14.y	01fd1694	bad3cce2	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/09/01 07:39	linux-4.14.y	01fd1694	bad3cce2	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/31 16:38	linux-4.14.y	01fd1694	bad3cce2	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/30 19:49	linux-4.14.y	01fd1694	9adfa876	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/30 00:05	linux-4.14.y	01fd1694	cd626f3b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/29 06:40	linux-4.14.y	b5260801	40203c15	.config	log	report			dhowells@redhat.com, james.l.morris@oracle.com, keyrings@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, serge@hallyn.com
ci2-linux-4-14	2019/08/27 20:36	linux-4.14.y	b5260801	d21c5d9d	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/27 10:53	linux-4.14.y	b5260801	d21c5d9d	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/26 07:54	linux-4.14.y	b5260801	d21c5d9d	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/25 05:24	linux-4.14.y	45f092f9	d21c5d9d	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/25 03:25	linux-4.14.y	45f092f9	d21c5d9d	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/24 20:26	linux-4.14.y	45f092f9	78ded196	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/24 14:42	linux-4.14.y	45f092f9	78ded196	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/24 02:34	linux-4.14.y	45f092f9	78ded196	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/21 14:19	linux-4.14.y	45f092f9	4ea67ff8	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/19 22:56	linux-4.14.y	45f092f9	ae348fb7	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/16 21:16	linux-4.14.y	45f092f9	8fd428a1	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/15 12:19	linux-4.14.y	3ffe1e79	0d298d6b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/13 06:04	linux-4.14.y	3ffe1e79	8620c2c2	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/11 14:14	linux-4.14.y	3ffe1e79	acb51638	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/11 06:00	linux-4.14.y	3ffe1e79	acb51638	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/10 21:38	linux-4.14.y	3ffe1e79	acb51638	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/10 12:02	linux-4.14.y	3ffe1e79	acb51638	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/07 10:56	linux-4.14.y	b19ffe6e	cdde7486	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/05 22:58	linux-4.14.y	7d80e121	6affd8e8	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/05 14:53	linux-4.14.y	7d80e121	6affd8e8	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/05 11:39	linux-4.14.y	7d80e121	6affd8e8	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/05 11:37	linux-4.14.y	7d80e121	6affd8e8	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/04 17:02	linux-4.14.y	7d80e121	6affd8e8	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/08/03 19:50	linux-4.14.y	10d6aa56	6affd8e8	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/07/31 10:08	linux-4.14.y	10d6aa56	7c7ded69	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/07/30 02:44	linux-4.14.y	ff33472c	f67095ee	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/07/30 02:13	linux-4.14.y	ff33472c	f67095ee	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/07/28 10:16	linux-4.14.y	ff33472c	c85e1c5b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/07/26 23:02	linux-4.14.y	ff33472c	8fe30d3e	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/07/26 17:23	linux-4.14.y	ff33472c	8fe30d3e	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/07/20 22:25	linux-4.14.y	aea8526e	1656845f	.config	log	report
ci2-linux-4-14	2019/07/20 16:13	linux-4.14.y	aea8526e	1656845f	.config	log	report
ci2-linux-4-14	2019/07/20 09:35	linux-4.14.y	aea8526e	1656845f	.config	log	report
ci2-linux-4-14	2019/07/20 08:59	linux-4.14.y	aea8526e	1656845f	.config	log	report
ci2-linux-4-14	2019/07/20 08:02	linux-4.14.y	aea8526e	1656845f	.config	log	report
ci2-linux-4-14	2019/07/02 18:36	linux-4.14.y	f4cc0ed9	5f175e9c	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/06/30 03:51	linux-4.14.y	f4cc0ed9	7509bf36	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/06/29 21:12	linux-4.14.y	f4cc0ed9	7509bf36	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/06/29 16:54	linux-4.14.y	f4cc0ed9	7509bf36	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/06/28 23:39	linux-4.14.y	f4cc0ed9	7509bf36	.config	log	report			akpm@linux-foundation.org, borntraeger@de.ibm.com, gregkh@linuxfoundation.org, kirill.shutemov@linux.intel.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mhocko@suse.com, mike.kravetz@oracle.com
ci2-linux-4-14	2019/06/28 11:18	linux-4.14.y	f4cc0ed9	7509bf36	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/06/27 15:34	linux-4.14.y	f4cc0ed9	7509bf36	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/06/27 08:55	linux-4.14.y	f4cc0ed9	7509bf36	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/06/25 03:36	linux-4.14.y	a5758c53	82c13b6b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/06/24 08:56	linux-4.14.y	a5758c53	472f0082	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/06/18 18:20	linux-4.14.y	e861d067	e3f76baa	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/06/18 18:06	linux-4.14.y	e861d067	e3f76baa	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/05/03 03:25	linux-4.14.y	1c046f37	e9039493	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/04/28 09:31	linux-4.14.y	fa5941f4	b617407b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/04/28 07:58	linux-4.14.y	fa5941f4	b617407b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/04/24 10:28	linux-4.14.y	68d7a45e	8e3c52b1	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-linux-4-14	2019/04/21 06:14	linux-4.14.y	68d7a45e	b0e8efcb	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org