general protection fault in del

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-5-10	general protection fault in del_gendisk (5)	C	done		1	323d	323d	0/2	closed as dup on 2022/07/11 15:32
android-5-10	general protection fault in del_gendisk (4)	C	done		1	357d	355d	0/2	closed as dup on 2022/06/08 16:47
android-5-10	general protection fault in del_gendisk (7)	C	error	inconclusive	18	47d	157d	0/2	upstream: reported C repro on 2022/12/22 23:51
android-5-10	general protection fault in del_gendisk (2)	C	error		2	397d	397d	0/2	closed as invalid on 2022/05/05 22:31
android-5-10	general protection fault in del_gendisk (3)	C	done		1	372d	372d	0/2	closed as invalid on 2022/06/03 17:43
android-5-10	general protection fault in del_gendisk (6)	C	done		1	239d	236d	0/2	closed as dup on 2022/10/05 23:44
android-5-10	general protection fault in del_gendisk	C	error		1	460d	567d	0/2	closed as invalid on 2022/03/02 21:49

Created	Duration	User	Patch	Repo	Result
2023/05/12 15:05	11m	retest repro		android12-5.4	report log

Created

Duration

User

Patch

Repo

Result

2023/05/12 15:05

11m

retest repro

android12-5.4

report log

ksys_ioctl fs/ioctl.c:742 [inline] __do_sys_ioctl fs/ioctl.c:749 [inline] __se_sys_ioctl fs/ioctl.c:747 [inline] __x64_sys_ioctl+0xd4/0x110 fs/ioctl.c:747 do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x5c/0xc1 ---[ end trace 7c922977edc3bb57 ]--- 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: 1 PID: 308 Comm: syz-executor313 Tainted: G W 5.4.219-syzkaller-00012-ga8aad8851131 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:kill_device drivers/base/core.c:3022 [inline] RIP: 0010:device_del+0xe7/0x1000 drivers/base/core.c:3049 Code: df e8 4d 6f 04 ff 4c 89 7c 24 18 41 bf c8 00 00 00 48 89 5c 24 08 4c 03 3b 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 8a 04 04 84 c0 0f 85 88 0e 00 00 41 0f b6 1f 89 de 83 e6 01 31 RSP: 0018:ffff8881ddaf79a0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8881dda110d8 RCX: 1ffff1103bb4221b RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881ddaf7920 RBP: ffff8881ddaf7a70 R08: dffffc0000000000 R09: ffffed103bb5ef25 R10: ffffed103bb5ef25 R11: 1ffff1103bb5ef24 R12: 0000000000000019 R13: ffff8881dda11070 R14: ffff8881dda11110 R15: 00000000000000c8 FS: 0000555556de2300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f26cd705130 CR3: 00000001e2b18000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: del_gendisk+0x99c/0xbf0 block/genhd.c:835 loop_remove+0x42/0xa0 drivers/block/loop.c:2194 loop_control_ioctl+0x67f/0x740 drivers/block/loop.c:2293 do_vfs_ioctl+0x744/0x1730 fs/ioctl.c:47 ksys_ioctl fs/ioctl.c:742 [inline] __do_sys_ioctl fs/ioctl.c:749 [inline] __se_sys_ioctl fs/ioctl.c:747 [inline] __x64_sys_ioctl+0xd4/0x110 fs/ioctl.c:747 do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x5c/0xc1 Modules linked in: ---[ end trace 7c922977edc3bb58 ]--- RIP: 0010:kill_device drivers/base/core.c:3022 [inline] RIP: 0010:device_del+0xe7/0x1000 drivers/base/core.c:3049 Code: df e8 4d 6f 04 ff 4c 89 7c 24 18 41 bf c8 00 00 00 48 89 5c 24 08 4c 03 3b 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 8a 04 04 84 c0 0f 85 88 0e 00 00 41 0f b6 1f 89 de 83 e6 01 31 RSP: 0018:ffff8881ddaf79a0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8881dda110d8 RCX: 1ffff1103bb4221b RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881ddaf7920 RBP: ffff8881ddaf7a70 R08: dffffc0000000000 R09: ffffed103bb5ef25 R10: ffffed103bb5ef25 R11: 1ffff1103bb5ef24 R12: 0000000000000019 R13: ffff8881dda11070 R14: ffff8881dda11110 R15: 00000000000000c8 FS: 0000555556de2300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f26cd705130 CR3: 00000001e2b18000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: df e8 fucomip %st(0),%st 2: 4d 6f rex.WRB outsl %ds:(%rsi),(%dx) 4: 04 ff add $0xff,%al 6: 4c 89 7c 24 18 mov %r15,0x18(%rsp) b: 41 bf c8 00 00 00 mov $0xc8,%r15d 11: 48 89 5c 24 08 mov %rbx,0x8(%rsp) 16: 4c 03 3b add (%rbx),%r15 19: 4d 89 fc mov %r15,%r12 1c: 49 c1 ec 03 shr $0x3,%r12 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 41 8a 04 04 mov (%r12,%rax,1),%al <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 88 0e 00 00 jne 0xebe 36: 41 0f b6 1f movzbl (%r15),%ebx 3a: 89 de mov %ebx,%esi 3c: 83 e6 01 and $0x1,%esi 3f: 31 .byte 0x31

Crashes (5):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets	Manager	Title
2022/12/24 00:40	android12-5.4	a8aad8851131	9da18ae8	.config	strace log	report	syz	C		[disk image] [vmlinux] [kernel image]	ci2-android-5-4-kasan	general protection fault in del_gendisk
2023/02/13 13:54	android12-5.4	6a5ec6cea0cd	957959cb	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-android-5-4-kasan	general protection fault in del_gendisk
2022/12/26 23:04	android12-5.4	a8aad8851131	9da18ae8	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-android-5-4-kasan	general protection fault in del_gendisk
2022/12/25 06:35	android12-5.4	a8aad8851131	9da18ae8	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-android-5-4-kasan	general protection fault in del_gendisk
2022/12/24 00:27	android12-5.4	a8aad8851131	9da18ae8	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-android-5-4-kasan	general protection fault in del_gendisk

Crashes (5):