general protection fault in del

duplicates (2):
Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
general protection fault in del_gendisk (5)	C	done		1	865d	865d	0/2	closed as dup on 2022/07/11 15:32
general protection fault in del_gendisk (6)	C	done		1	781d	778d	0/2	closed as dup on 2022/10/05 23:44

duplicates (2):

done

865d

0/2

closed as dup on 2022/07/11 15:32

general protection fault in del_gendisk (6)

done

781d

778d

0/2

closed as dup on 2022/10/05 23:44

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	865d	865d	0/2	closed as dup on 2022/07/11 15:32
android-5-10	general protection fault in del_gendisk (4)	C	done		1	899d	897d	0/2	closed as dup on 2022/06/08 16:47
android-5-10	general protection fault in del_gendisk (7)	C	error	inconclusive	54	61d	699d	0/2	upstream: reported C repro on 2022/12/22 23:51
android-54	general protection fault in del_gendisk	C			8	7d21h	698d	0/2	upstream: reported C repro on 2022/12/24 00:28
android-5-10	general protection fault in del_gendisk (2)	C	error		2	938d	939d	0/2	closed as invalid on 2022/05/05 22:31
android-5-10	general protection fault in del_gendisk (3)	C	done		1	914d	914d	0/2	closed as invalid on 2022/06/03 17:43
android-5-10	general protection fault in del_gendisk (6)	C	done		1	781d	778d	0/2	closed as dup on 2022/10/05 23:44

Created	Duration	User	Repo	Result
2022/02/23 13:00	19m	bisect fix	android12-5.10-lts	OK (0) job log log
2022/01/24 10:25	20m	bisect fix	android12-5.10-lts	OK (0) job log log
2021/12/25 10:05	20m	bisect fix	android12-5.10-lts	OK (0) job log log
2021/11/25 09:41	23m	bisect fix	android12-5.10-lts	OK (0) job log log

Created

Duration

User

Patch

Repo

Result

2022/02/23 13:00

19m

bisect fix

android12-5.10-lts

OK (0) job log log

2022/01/24 10:25

20m

bisect fix

android12-5.10-lts

OK (0) job log log

2021/12/25 10:05

20m

bisect fix

android12-5.10-lts

OK (0) job log log

2021/11/25 09:41

23m

bisect fix

android12-5.10-lts

OK (0) job log log

RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 00007ffc49259950 R11: 0000000000000246 R12: 00007ffc49259eec R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 ---[ end trace a4c966a9db73d00f ]--- general protection fault, probably for non-canonical address 0xdffffc000000001a: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x00000000000000d0-0x00000000000000d7] CPU: 0 PID: 369 Comm: syz-executor152 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kill_device drivers/base/core.c:3357 [inline] RIP: 0010:device_del+0xda/0xf00 drivers/base/core.c:3385 Code: 18 42 80 3c 28 00 74 08 48 89 df e8 80 e6 d7 fe 4c 89 7c 24 08 41 bf d0 00 00 00 48 89 5c 24 10 4c 03 3b 4d 89 fc 49 c1 ec 03 <43> 8a 04 2c 84 c0 0f 85 1b 0d 00 00 45 0f b6 2f 44 89 eb 83 e3 01 RSP: 0018:ffffc900002bfba0 EFLAGS: 00010202 RAX: 1ffff11020d76a1a RBX: ffff888106bb50d0 RCX: ffffffff849cd326 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900002bfb20 RBP: ffffc900002bfc90 R08: dffffc0000000000 R09: fffff52000057f65 R10: fffff52000057f65 R11: 0000000000000000 R12: 000000000000001a R13: dffffc0000000000 R14: ffff888106bb5108 R15: 00000000000000d0 FS: 0000555556adb300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4913439130 CR3: 00000001079bb000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: del_gendisk+0xc00/0xe30 block/genhd.c:953 loop_remove drivers/block/loop.c:2198 [inline] loop_control_ioctl+0x6a3/0x7c0 drivers/block/loop.c:2297 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0x115/0x190 fs/ioctl.c:739 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f49133c8079 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 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:00007ffc49259ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000004c85 RCX: 00007f49133c8079 RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 00007ffc49259950 R11: 0000000000000246 R12: 00007ffc49259eec R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace a4c966a9db73d010 ]--- RIP: 0010:kill_device drivers/base/core.c:3357 [inline] RIP: 0010:device_del+0xda/0xf00 drivers/base/core.c:3385 Code: 18 42 80 3c 28 00 74 08 48 89 df e8 80 e6 d7 fe 4c 89 7c 24 08 41 bf d0 00 00 00 48 89 5c 24 10 4c 03 3b 4d 89 fc 49 c1 ec 03 <43> 8a 04 2c 84 c0 0f 85 1b 0d 00 00 45 0f b6 2f 44 89 eb 83 e3 01 RSP: 0018:ffffc900002bfba0 EFLAGS: 00010202 RAX: 1ffff11020d76a1a RBX: ffff888106bb50d0 RCX: ffffffff849cd326 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900002bfb20 RBP: ffffc900002bfc90 R08: dffffc0000000000 R09: fffff52000057f65 R10: fffff52000057f65 R11: 0000000000000000 R12: 000000000000001a R13: dffffc0000000000 R14: ffff888106bb5108 R15: 00000000000000d0 FS: 0000555556adb300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4913439130 CR3: 00000001079bb000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 18 42 80 sbb %al,-0x80(%rdx) 3: 3c 28 cmp $0x28,%al 5: 00 74 08 48 add %dh,0x48(%rax,%rcx,1) 9: 89 df mov %ebx,%edi b: e8 80 e6 d7 fe callq 0xfed7e690 10: 4c 89 7c 24 08 mov %r15,0x8(%rsp) 15: 41 bf d0 00 00 00 mov $0xd0,%r15d 1b: 48 89 5c 24 10 mov %rbx,0x10(%rsp) 20: 4c 03 3b add (%rbx),%r15 23: 4d 89 fc mov %r15,%r12 26: 49 c1 ec 03 shr $0x3,%r12 * 2a: 43 8a 04 2c mov (%r12,%r13,1),%al <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 1b 0d 00 00 jne 0xd51 36: 45 0f b6 2f movzbl (%r15),%r13d 3a: 44 89 eb mov %r13d,%ebx 3d: 83 e3 01 and $0x1,%ebx