general protection fault in inherit_task

Date	Name	Commit	Repro	Result
2024/02/17	android14-6.1 (ToT)	92432f07d663	C	[report] general protection fault in inherit_task_group
2024/02/17	lts (merge base)	ba6f5fb46511	C	Didn't crash
2024/02/17	upstream (ToT)	c1ca10ceffbb	C	Didn't crash

Date

Name

Commit

Repro

Result

2024/02/17

android14-6.1 (ToT)

92432f07d663

[report] general protection fault in inherit_task_group

2024/02/17

lts (merge base)

ba6f5fb46511

Didn't crash

2024/02/17

upstream (ToT)

c1ca10ceffbb

Didn't crash

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-54	general protection fault in inherit_task_group	C			17	9d06h	82d	0/2	upstream: reported C repro on 2024/02/16 22:46
upstream	general protection fault in inherit_task_group perf	C	done	done	4	193d	191d	25/26	fixed on 2023/12/21 03:45
linux-6.1	general protection fault in inherit_task_group origin:upstream missing-backport	C		inconclusive	3	103d	194d	0/3	upstream: reported C repro on 2023/10/28 05:24
linux-5.15	general protection fault in inherit_task_group origin:upstream	C		done	4	189d	195d	3/3	fixed on 2023/12/05 18:06
android-5-10	general protection fault in inherit_task_group	C			9	43d	82d	0/2	upstream: reported C repro on 2024/02/16 23:02
android-5-15	general protection fault in inherit_task_group origin:downstream	C			4	12d	82d	0/2	upstream: reported C repro on 2024/02/16 23:09

Created	Duration	User	Patch	Repo	Result
2024/04/27 11:29	9m	retest repro		android14-6.1	report log

Created

Duration

User

Patch

Repo

Result

2024/04/27 11:29

retest repro

android14-6.1

report log

general protection fault, probably for non-canonical address 0xdffffc0000000011: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000088-0x000000000000008f] CPU: 0 PID: 462 Comm: syz-executor658 Not tainted 6.1.68-syzkaller-00023-g92432f07d663 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:inherit_group kernel/events/core.c:13297 [inline] RIP: 0010:inherit_task_group+0x690/0x790 kernel/events/core.c:13344 Code: 8c 00 00 00 4c 89 e8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 a0 00 00 00 41 8b 5d 00 49 81 c6 8c 00 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 9f 00 00 00 41 89 1e e9 7d fa ff ff e8 RSP: 0018:ffffc900011779a8 EFLAGS: 00010207 RAX: 0000000000000011 RBX: 0000000000000000 RCX: ffff88811ae9d100 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888121c46f70 RBP: ffffc90001177a10 R08: dffffc0000000000 R09: ffffed103ee07023 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90001177aa0 R13: ffff888121c46f6c R14: 000000000000008c R15: dffffc0000000000 FS: 00007fbe85fc86c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbe85fa7d58 CR3: 0000000109ce7000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> perf_event_init_context kernel/events/core.c:13413 [inline] perf_event_init_task+0x2a1/0x5f0 kernel/events/core.c:13466 copy_process+0x1144/0x3490 kernel/fork.c:2344 kernel_clone+0x229/0x890 kernel/fork.c:2785 __do_sys_clone kernel/fork.c:2928 [inline] __se_sys_clone kernel/fork.c:2912 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2912 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fbe86028469 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbe85fc8238 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fbe860b2338 RCX: 00007fbe86028469 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000002400 RBP: 00007fbe860b2330 R08: 0000000000000000 R09: 00007fbe85fc86c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe8607f064 R13: 0000000000000000 R14: 00007fff96509140 R15: 00007fff96509228 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:inherit_group kernel/events/core.c:13297 [inline] RIP: 0010:inherit_task_group+0x690/0x790 kernel/events/core.c:13344 Code: 8c 00 00 00 4c 89 e8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 a0 00 00 00 41 8b 5d 00 49 81 c6 8c 00 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 9f 00 00 00 41 89 1e e9 7d fa ff ff e8 RSP: 0018:ffffc900011779a8 EFLAGS: 00010207 RAX: 0000000000000011 RBX: 0000000000000000 RCX: ffff88811ae9d100 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888121c46f70 RBP: ffffc90001177a10 R08: dffffc0000000000 R09: ffffed103ee07023 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90001177aa0 R13: ffff888121c46f6c R14: 000000000000008c R15: dffffc0000000000 FS: 00007fbe85fc86c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbe86064110 CR3: 0000000109ce7000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 8c 00 mov %es,(%rax) 2: 00 00 add %al,(%rax) 4: 4c 89 e8 mov %r13,%rax 7: 48 c1 e8 03 shr $0x3,%rax b: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax 10: 84 c0 test %al,%al 12: 0f 85 a0 00 00 00 jne 0xb8 18: 41 8b 5d 00 mov 0x0(%r13),%ebx 1c: 49 81 c6 8c 00 00 00 add $0x8c,%r14 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 9f 00 00 00 jne 0xd6 37: 41 89 1e mov %ebx,(%r14) 3a: e9 7d fa ff ff jmp 0xfffffabc 3f: e8 .byte 0xe8

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/02/17 03:27	android14-6.1	92432f07d663	578f7538	.config	strace log	report	syz	C		[disk image] [vmlinux] [kernel image]	ci2-android-6-1-perf	general protection fault in inherit_task_group

Crashes (1):

Assets (help?)