general protection fault in fbcon

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	general protection fault in fbcon_cursor	C		inconclusive	15	1377d	1551d	0/1	upstream: reported C repro on 2020/01/24 02:58
upstream	general protection fault in fbcon_cursor fbdev	C	done		53	1368d	1593d	0/26	closed as dup on 2020/07/27 23:02

Created	Duration	User	Patch	Repo	Result
2022/08/28 02:27	11m	retest repro		linux-4.19.y	error OK

Created

Duration

User

Patch

Repo

Result

2022/08/28 02:27

11m

retest repro

linux-4.19.y

error OK

audit: type=1400 audit(1581509213.161:36): avc: denied { map } for pid=8295 comm="syz-executor177" path="/root/syz-executor177002793" dev="sda1" ino=16484 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 CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 4.19.103-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events console_callback RIP: 0010:fbcon_cursor+0x114/0x7b0 drivers/video/fbdev/core/fbcon.c:1347 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 43 06 00 00 4d 8b bc 24 a0 03 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <0f> b6 14 02 4c 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 4d RSP: 0018:ffff8880aa3afb00 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: ffff8882196fdc80 RCX: ffffffff83b53100 RDX: 0000000020000001 RSI: ffffffff838908ec RDI: ffff8880827126a0 RBP: ffff8880aa3afb40 R08: ffff8880a54671e8 R09: ffffed1014b72f04 R10: ffffed1014b72f03 R11: ffff8880a5b9781f R12: ffff888082712300 R13: ffff8880a5466d80 R14: 0000000000000001 R15: 000000010000000c FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000f05d00 CR3: 00000000a9014000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: set_cursor drivers/tty/vt/vt.c:908 [inline] set_cursor+0x1fb/0x280 drivers/tty/vt/vt.c:899 redraw_screen+0x60f/0x8e0 drivers/tty/vt/vt.c:1015 complete_change_console+0x105/0x3a0 drivers/tty/vt/vt_ioctl.c:1277 change_console+0x19b/0x2c0 drivers/tty/vt/vt_ioctl.c:1402 console_callback+0x3a1/0x400 drivers/tty/vt/vt.c:2800 process_one_work+0x989/0x1750 kernel/workqueue.c:2153 worker_thread+0x98/0xe40 kernel/workqueue.c:2296 kthread+0x354/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Modules linked in: ---[ end trace c46089ad2f94fde1 ]--- RIP: 0010:fbcon_cursor+0x114/0x7b0 drivers/video/fbdev/core/fbcon.c:1347 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 43 06 00 00 4d 8b bc 24 a0 03 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <0f> b6 14 02 4c 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 4d RSP: 0018:ffff8880aa3afb00 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: ffff8882196fdc80 RCX: ffffffff83b53100 RDX: 0000000020000001 RSI: ffffffff838908ec RDI: ffff8880827126a0 RBP: ffff8880aa3afb40 R08: ffff8880a54671e8 R09: ffffed1014b72f04 R10: ffffed1014b72f03 R11: ffff8880a5b9781f R12: ffff888082712300 R13: ffff8880a5466d80 R14: 0000000000000001 R15: 000000010000000c FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000f05d00 CR3: 00000000a9014000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (21):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Manager
2020/02/12 12:10	linux-4.19.y	357668399cf7	a75b198c	.config	console log	report	syz	C	ci2-linux-4-19
2020/06/26 00:00	linux-4.19.y	a39e75458e1c	aea82c00	.config	console log	report			ci2-linux-4-19
2020/06/15 00:09	linux-4.19.y	3fc898571b97	2a22c77a	.config	console log	report			ci2-linux-4-19
2020/06/01 13:11	linux-4.19.y	2d16cf4817bc	a0331e89	.config	console log	report			ci2-linux-4-19
2020/05/01 22:00	linux-4.19.y	765675379b62	bc734e7a	.config	console log	report			ci2-linux-4-19
2020/04/29 16:06	linux-4.19.y	765675379b62	ba2806db	.config	console log	report			ci2-linux-4-19
2020/04/19 09:42	linux-4.19.y	8488c3f3bc86	6dfd45e1	.config	console log	report			ci2-linux-4-19
2020/04/12 06:52	linux-4.19.y	dda0e2920330	a8c6a3f8	.config	console log	report			ci2-linux-4-19
2020/04/08 19:44	linux-4.19.y	dda0e2920330	db9bcd4b	.config	console log	report			ci2-linux-4-19
2020/04/02 15:22	linux-4.19.y	dda0e2920330	a34e2c33	.config	console log	report			ci2-linux-4-19
2020/04/02 08:28	linux-4.19.y	54b4fa6d3955	a34e2c33	.config	console log	report			ci2-linux-4-19
2020/04/02 00:02	linux-4.19.y	54b4fa6d3955	a34e2c33	.config	console log	report			ci2-linux-4-19
2020/03/29 08:31	linux-4.19.y	54b4fa6d3955	05736b29	.config	console log	report			ci2-linux-4-19
2020/03/19 12:47	linux-4.19.y	93556fb211fa	2c31c529	.config	console log	report			ci2-linux-4-19
2020/03/16 10:33	linux-4.19.y	339485c9a80f	749688d2	.config	console log	report			ci2-linux-4-19
2020/03/05 21:52	linux-4.19.y	7472c4028e23	b655d91b	.config	console log	report			ci2-linux-4-19
2020/03/01 19:20	linux-4.19.y	a083db76118d	c88c7b75	.config	console log	report			ci2-linux-4-19
2020/02/27 10:35	linux-4.19.y	f25804f38984	40bcfdd5	.config	console log	report			ci2-linux-4-19
2020/02/26 15:12	linux-4.19.y	f25804f38984	251aabb7	.config	console log	report			ci2-linux-4-19
2020/02/26 03:53	linux-4.19.y	f25804f38984	4f588111	.config	console log	report			ci2-linux-4-19
2020/02/25 06:57	linux-4.19.y	f25804f38984	59b57593	.config	console log	report			ci2-linux-4-19

Crashes (21):

Assets (help?)

2020/02/12 12:10

linux-4.19.y