general protection fault in scatterwalk

general protection fault in scatterwalk_copychunks (4)
Status: upstream: reported on 2021/03/16 06:48
Reported-by: syzbot+66e3ea42c4b176748b9c@syzkaller.appspotmail.com
First crash: 146d, last: 9h59m

similar bugs (8):
Kernel	Title	Repro	Fix bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in scatterwalk_copychunks (3)	C		95	1017d	1143d	0/22	closed as invalid on 2019/06/10 23:08
upstream	general protection fault in scatterwalk_copychunks (2)	C		141	1308d	1335d	3/22	fixed on 2018/01/11 01:23
linux-4.14	general protection fault in scatterwalk_copychunks	C		182	19d	837d	0/1	upstream: reported C repro on 2019/04/21 07:15
linux-4.19	general protection fault in scatterwalk_copychunks	C		89	4d15h	776d	0/1	upstream: reported C repro on 2019/06/20 18:59
upstream	general protection fault in scatterwalk_copychunks	C		414	1336d	1345d	3/22	fixed on 2017/12/08 02:32
linux-4.14	KASAN: use-after-free Read in scatterwalk_copychunks	C	inconclusive	4	182d	837d	0/1	upstream: reported C repro on 2019/04/21 07:18
linux-4.19	KASAN: use-after-free Read in scatterwalk_copychunks	C		7	22d	672d	0/1	upstream: reported C repro on 2019/10/03 04:34
linux-4.14	KASAN: slab-out-of-bounds Read in scatterwalk_copychunks	C	inconclusive	6	190d	694d	0/1	upstream: reported C repro on 2019/09/11 08:57

Sample crash report:

general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 80 Comm: kworker/u4:3 Not tainted 5.14.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: pencrypt_parallel padata_parallel_worker
RIP: 0010:scatterwalk_start include/crypto/scatterwalk.h:68 [inline]
RIP: 0010:scatterwalk_pagedone include/crypto/scatterwalk.h:88 [inline]
RIP: 0010:scatterwalk_pagedone include/crypto/scatterwalk.h:77 [inline]
RIP: 0010:scatterwalk_copychunks+0x4db/0x6a0 crypto/scatterwalk.c:50
Code: ff df 80 3c 02 00 0f 85 b4 01 00 00 49 8d 44 24 08 4d 89 26 48 89 c2 48 89 44 24 18 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 77 01 00 00 48 b8 00 00 00 00
RSP: 0018:ffffc9000103f920 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff83d3c323 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8de1169c
R10: ffffffff83d3c2d3 R11: 0000000000086088 R12: 0000000000000000
R13: 0000000000000010 R14: ffffc9000103fb10 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31b27000 CR3: 0000000034cb8000 CR4: 0000000000350ef0
Call Trace:
 skcipher_next_slow crypto/skcipher.c:278 [inline]
 skcipher_walk_next+0x7af/0x1680 crypto/skcipher.c:363
 skcipher_walk_done+0x7a3/0xf00 crypto/skcipher.c:159
 crypto_ctr_crypt+0x281/0x550 crypto/ctr.c:116
 crypto_skcipher_encrypt+0xaa/0xf0 crypto/skcipher.c:630
 crypto_gcm_encrypt+0x38f/0x4b0 crypto/gcm.c:461
 crypto_aead_encrypt+0xaa/0xf0 crypto/aead.c:94
 pcrypt_aead_enc+0x13/0x70 crypto/pcrypt.c:82
 padata_parallel_worker+0x60/0xb0 kernel/padata.c:157
 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Modules linked in:
---[ end trace 99387211b28ffecd ]---
RIP: 0010:scatterwalk_start include/crypto/scatterwalk.h:68 [inline]
RIP: 0010:scatterwalk_pagedone include/crypto/scatterwalk.h:88 [inline]
RIP: 0010:scatterwalk_pagedone include/crypto/scatterwalk.h:77 [inline]
RIP: 0010:scatterwalk_copychunks+0x4db/0x6a0 crypto/scatterwalk.c:50
Code: ff df 80 3c 02 00 0f 85 b4 01 00 00 49 8d 44 24 08 4d 89 26 48 89 c2 48 89 44 24 18 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 77 01 00 00 48 b8 00 00 00 00
RSP: 0018:ffffc9000103f920 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff83d3c323 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8de1169c
R10: ffffffff83d3c2d3 R11: 0000000000086088 R12: 0000000000000000
R13: 0000000000000010 R14: ffffc9000103fb10 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31b27000 CR3: 0000000034cb8000 CR4: 0000000000350ef0

Crashes (38):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Title
ci-upstream-kasan-gce-root	2021/08/04 21:36	upstream	251a1524293d	b97d64c9	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-selinux-root	2021/08/02 10:44	upstream	c500bee1c5b2	6c236867	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce	2021/08/01 22:28	upstream	d4affd6b6e81	6c236867	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce	2021/08/01 22:09	upstream	d4affd6b6e81	6c236867	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-root	2021/08/01 21:11	upstream	d4affd6b6e81	6c236867	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-selinux-root	2021/08/01 01:06	upstream	f3438b4c4e69	6c236867	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-selinux-root	2021/08/01 00:33	upstream	f3438b4c4e69	6c236867	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-smack-root	2021/08/01 00:21	upstream	f3438b4c4e69	6c236867	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-root	2021/07/31 23:29	upstream	f3438b4c4e69	6c236867	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-root	2021/05/03 17:15	upstream	d2b6f8a17919	ad61f371	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-selinux-root	2021/03/23 18:24	upstream	84196390620a	e613994b	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-selinux-root	2021/03/23 00:59	upstream	84196390620a	8092f30d	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-smack-root	2021/03/22 23:23	upstream	84196390620a	8092f30d	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-386	2021/08/05 06:25	upstream	251a1524293d	7f7bb950	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-kasan-gce-386	2021/03/22 23:25	upstream	84196390620a	8092f30d	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-this-kasan-gce	2021/07/31 23:22	net	c7d102232649	6c236867	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-this-kasan-gce	2021/07/06 12:29	net	c6c205ed442e	6c4484eb	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-this-kasan-gce	2021/07/04 20:22	net	dbe69e433722	55aa55c2	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-this-kasan-gce	2021/06/19 01:16	net	35036d69b9bd	aba2b2fb	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-this-kasan-gce	2021/06/14 21:01	net	49a10c7b1762	1ba81399	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-this-kasan-gce	2021/06/12 01:32	net	f4cdcae03f9c	1ba81399	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-this-kasan-gce	2021/06/12 00:43	net	f4cdcae03f9c	1ba81399	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-this-kasan-gce	2021/06/11 11:41	net	232e3683b4ee	1ba81399	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-this-kasan-gce	2021/06/10 04:20	net	13c62f5371e3	1ba81399	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-this-kasan-gce	2021/03/11 22:47	net	47142ed6c34d	429d8a6b	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-kasan-gce	2021/07/31 17:36	net-next	3e12361b6d23	6c236867	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-kasan-gce	2021/06/26 17:19	net-next	ff8744b5eb11	9d2ab5df	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-kasan-gce	2021/06/12 11:05	net-next	1f1aa3fe0214	1ba81399	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-kasan-gce	2021/05/02 02:29	net-next	95aafe911db6	77e2b668	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-upstream-net-kasan-gce	2021/04/28 04:18	net-next	95aafe911db6	805b5003	.config	log	report	info	general protection fault in scatterwalk_copychunks
ci-qemu-upstream	2021/08/04 16:06	upstream	d5ad8ec3cfb5	b97d64c9	.config	log	report	info	KASAN: use-after-free Read in scatterwalk_copychunks
ci-upstream-kasan-gce-root	2021/08/01 20:56	upstream	d4affd6b6e81	6c236867	.config	log	report	info	KASAN: use-after-free Read in scatterwalk_copychunks
ci-upstream-kasan-gce-selinux-root	2021/08/01 00:16	upstream	f3438b4c4e69	6c236867	.config	log	report	info	KASAN: use-after-free Read in scatterwalk_copychunks
ci-upstream-kasan-gce-root	2021/08/01 00:08	upstream	f3438b4c4e69	6c236867	.config	log	report	info	KASAN: use-after-free Read in scatterwalk_copychunks
ci-upstream-kasan-gce-root	2021/07/31 23:58	upstream	f3438b4c4e69	6c236867	.config	log	report	info	KASAN: use-after-free Read in scatterwalk_copychunks
ci-upstream-kasan-gce-root	2021/07/31 23:57	upstream	f3438b4c4e69	6c236867	.config	log	report	info	KASAN: use-after-free Read in scatterwalk_copychunks
ci-upstream-kasan-gce-root	2021/07/31 23:51	upstream	f3438b4c4e69	6c236867	.config	log	report	info	KASAN: use-after-free Read in scatterwalk_copychunks
ci-upstream-kasan-gce-root	2021/07/31 15:37	upstream	c7d102232649	6c236867	.config	log	report	info	KASAN: use-after-free Read in scatterwalk_copychunks