BUG: unable to handle kernel paging request in perf_misc_flags

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syzbot

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Sep 1, 2020, 12:58:17 AM9/1/20
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Hello,

syzbot found the following issue on:

HEAD commit: 15bc20c6 Merge tag 'tty-5.9-rc3' of git://git.kernel.org/p..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=148a6fe5900000
kernel config: https://syzkaller.appspot.com/x/.config?x=891ca5711a9f1650
dashboard link: https://syzkaller.appspot.com/bug?extid=2691f167fe2cfb315773
compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
CC: [ac...@kernel.org alexander...@linux.intel.com b...@alien8.de h...@zytor.com jo...@redhat.com linux-...@vger.kernel.org mark.r...@arm.com mi...@redhat.com namh...@kernel.org pet...@infradead.org tg...@linutronix.de x...@kernel.org]

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2691f1...@syzkaller.appspotmail.com

BUG: unable to handle page fault for address: 0000000073888888
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a7711067 P4D a7711067 PUD 0
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 18982 Comm: syz-executor.1 Not tainted 5.9.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:perf_misc_flags+0x63/0x150 arch/x86/events/core.c:2626
Code: 1d c2 52 83 0a 48 85 db 0f 84 86 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 03 bb b3 00 ff 13 89 c3 31 ff <89> 88 88 88 88 73 00 85 db 74 66 e8 ad e0 73 00 48 c7 c0 00 6a 77
RSP: 0000:ffffc9001727f948 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880a1106380
RDX: ffff8880a1106380 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9001727fa00 R08: ffffffff810bdf64 R09: fffffbfff167da99
R10: fffffbfff167da99 R11: 0000000000000000 R12: ffffc9001727fa04
R13: dffffc0000000000 R14: ffffc9001727ff58 R15: dffffc0000000000
FS: 00007f23220a0700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000073888888 CR3: 00000000a28c8000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
perf_prepare_sample+0xea/0x19f0 kernel/events/core.c:7001
__perf_event_output kernel/events/core.c:7170 [inline]
perf_event_output_forward+0xa7/0x1c0 kernel/events/core.c:7190
__perf_event_overflow+0x1b9/0x340 kernel/events/core.c:8845
perf_swevent_hrtimer+0x43c/0x4d0 kernel/events/core.c:10247
__run_hrtimer kernel/time/hrtimer.c:1524 [inline]
__hrtimer_run_queues+0x42d/0x930 kernel/time/hrtimer.c:1588
hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1650
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
__sysvec_apic_timer_interrupt+0xf0/0x260 arch/x86/kernel/apic/apic.c:1097
run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:50 [inline]
sysvec_apic_timer_interrupt+0xd0/0xf0 arch/x86/kernel/apic/apic.c:1091
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
BUG: unable to handle page fault for address: 0000000068218889
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a7711067 P4D a7711067 PUD 0
Oops: 0002 [#2] PREEMPT SMP KASAN
CPU: 1 PID: 18982 Comm: syz-executor.1 Not tainted 5.9.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x40/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:344
Code: ee e8 a4 58 74 00 83 fd 02 40 0f 95 c5 48 81 e3 00 f0 ff ff 48 c7 c7 00 00 60 ff 48 89 de e8 27 59 74 00 48 81 fb 88 88 88 88 <88> 88 88 88 20 e8 0f b6 c0 5b 5d c3 0f 1f 40 00 55 41 57 41 56 41
RSP: 0000:ffffc9001727f110 EFLAGS: 00010017
RAX: 0000000080010001 RBX: 000000000045d000 RCX: ffff8880a1106380
RDX: ffff8880a1106380 RSI: 000000000045d000 RDI: ffffffffff600000
RBP: 0000000000000001 R08: ffffffff8100a3a9 R09: ffffffff83c04cae
R10: 0000000000000002 R11: ffff8880a1106380 R12: ffffc9001727f188
R13: ffffc9001727f200 R14: ffffc9001727f190 R15: ffffffff8c426000
FS: 00007f23220a0700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000068218889 CR3: 00000000a28c8000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle page fault for address: 0000000068218889
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a7711067 P4D a7711067 PUD 0
Oops: 0002 [#3] PREEMPT SMP KASAN
CPU: 1 PID: 18982 Comm: syz-executor.1 Not tainted 5.9.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x40/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:344
Code: ee e8 a4 58 74 00 83 fd 02 40 0f 95 c5 48 81 e3 00 f0 ff ff 48 c7 c7 00 00 60 ff 48 89 de e8 27 59 74 00 48 81 fb 88 88 88 88 <88> 88 88 88 20 e8 0f b6 c0 5b 5d c3 0f 1f 40 00 55 41 57 41 56 41
RSP: 0000:ffffc9001727ea10 EFLAGS: 00010097
RAX: 0000000080010001 RBX: ffffffff80fff000 RCX: ffff8880a1106380
RDX: ffff8880a1106380 RSI: ffffffff80fff000 RDI: ffffffffff600000
RBP: 0000000000000001 R08: ffffffff8100a3a9 R09: ffffffff83c04cae
R10: 0000000000000002 R11: ffff8880a1106380 R12: ffffc9001727ea88
R13: ffffc9001727eb00 R14: ffffc9001727ea90 R15: ffffffff8c426000
FS: 00007f23220a0700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000068218889 CR3: 00000000a28c8000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle page fault for address: 0000000068218889
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a7711067 P4D a7711067 PUD 0
Oops: 0002 [#4] PREEMPT SMP KASAN
CPU: 1 PID: 18982 Comm: syz-executor.1 Not tainted 5.9.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x40/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:344
Code: ee e8 a4 58 74 00 83 fd 02 40 0f 95 c5 48 81 e3 00 f0 ff ff 48 c7 c7 00 00 60 ff 48 89 de e8 27 59 74 00 48 81 fb 88 88 88 88 <88> 88 88 88 20 e8 0f b6 c0 5b 5d c3 0f 1f 40 00 55 41 57 41 56 41
RSP: 0000:ffffc9001727e310 EFLAGS: 00010097
RAX: 0000000080010001 RBX: ffffffff80fff000 RCX: ffff8880a1106380
RDX: ffff8880a1106380 RSI: ffffffff80fff000 RDI: ffffffffff600000
RBP: 0000000000000001 R08: ffffffff8100a3a9 R09: ffffffff83c04cae
R10: 0000000000000002 R11: ffff8880a1106380 R12: ffffc9001727e388
R13: ffffc9001727e400 R14: ffffc9001727e390 R15: ffffffff8c426000
FS: 00007f23220a0700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000068218889 CR3: 00000000a28c8000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle page fault for address: 0000000068218889
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a7711067 P4D a7711067 PUD 0
Oops: 0002 [#5] PREEMPT SMP KASAN
CPU: 1 PID: 18982 Comm: syz-executor.1 Not tainted 5.9.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x40/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:344
Code: ee e8 a4 58 74 00 83 fd 02 40 0f 95 c5 48 81 e3 00 f0 ff ff 48 c7 c7 00 00 60 ff 48 89 de e8 27 59 74 00 48 81 fb 88 88 88 88 <88> 88 88 88 20 e8 0f b6 c0 5b 5d c3 0f 1f 40 00 55 41 57 41 56 41
RSP: 0000:ffffc9001727dc10 EFLAGS: 00010097
RAX: 0000000080010001 RBX: ffffffff80fff000 RCX: ffff8880a1106380
RDX: ffff8880a1106380 RSI: ffffffff80fff000 RDI: ffffffffff600000
RBP: 0000000000000001 R08: ffffffff8100a3a9 R09: ffffffff83c04cae
R10: 0000000000000002 R11: ffff8880a1106380 R12: ffffc9001727dc88
R13: ffffc9001727dd00 R14: ffffc9001727dc90 R15: ffffffff8c426000
FS: 00007f23220a0700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000068218889 CR3: 00000000a28c8000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle page fault for address: 0000000068218889
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a7711067 P4D a7711067 PUD 0
Oops: 0002 [#6] PREEMPT SMP KASAN
CPU: 1 PID: 18982 Comm: syz-executor.1 Not tainted 5.9.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x40/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:344
Code: ee e8 a4 58 74 00 83 fd 02 40 0f 95 c5 48 81 e3 00 f0 ff ff 48 c7 c7 00 00 60 ff 48 89 de e8 27 59 74 00 48 81 fb 88 88 88 88 <88> 88 88 88 20 e8 0f b6 c0 5b 5d c3 0f 1f 40 00 55 41 57 41 56 41
RSP: 0000:ffffc9001727d510 EFLAGS: 00010097
RAX: 0000000080010001 RBX: ffffffff80fff000 RCX: ffff8880a1106380
RDX: ffff8880a1106380 RSI: ffffffff80fff000 RDI: ffffffffff600000
RBP: 0000000000000001 R08: ffffffff8100a3a9 R09: ffffffff83c04cae
R10: 0000000000000002 R11: ffff8880a1106380 R12: ffffc9001727d588
R13: ffffc9001727d600 R14: ffffc9001727d590 R15: ffffffff8c426000
FS: 00007f23220a0700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000068218889 CR3: 00000000a28c8000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle page fault for address: 0000000068218889
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a7711067 P4D a7711067 PUD 0
Oops: 0002 [#7] PREEMPT SMP KASAN
CPU: 1 PID: 18982 Comm: syz-executor.1 Not tainted 5.9.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x40/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:344
Code: ee e8 a4 58 74 00 83 fd 02 40 0f 95 c5 48 81 e3 00 f0 ff ff 48 c7 c7 00 00 60 ff 48 89 de e8 27 59 74 00 48 81 fb 88 88 88 88 <88> 88 88 88 20 e8 0f b6 c0 5b 5d c3 0f 1f 40 00 55 41 57 41 56 41
RSP: 0000:ffffc9001727ce10 EFLAGS: 00010097
RAX: 0000000080010001 RBX: ffffffff80fff000 RCX: ffff8880a1106380
RDX: ffff8880a1106380 RSI: ffffffff80fff000 RDI: ffffffffff600000
RBP: 0000000000000001 R08: ffffffff8100a3a9 R09: ffffffff83c04cae
R10: 0000000000000002 R11: ffff8880a1106380 R12: ffffc9001727ce88
R13: ffffc9001727cf00 R14: ffffc9001727ce90 R15: ffffffff8c426000
FS: 00007f23220a0700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000068218889 CR3: 00000000a28c8000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle page fault for address: 0000000068218889
#PF: super
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syzbot

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Nov 25, 2020, 11:51:10 PM11/25/20
to syzkaller-upst...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
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