general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 6791 Comm: syz-executor965 Not tainted 5.8.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:pvclock_gtod_notify+0x0/0x3e0 arch/x86/kvm/x86.c:7400
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90000da8c70 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffffffff8b5e9c18 RSI: 0000000000000000 RDI: ffffffff892a79c8
RBP: ffffffff892a79c8 R08: ffffffff814ee99b R09: fffffbfff163309f
R10: fffffbfff163309f R11: 0000000000000000 R12: 0000000000000000
R13: 00000000ffffffff R14: 1ffffffff1254f39 R15: 0000000000000000
FS:  0000000001d43880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 00000000972d5000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 notifier_call_chain kernel/notifier.c:83 [inline]
 __raw_notifier_call_chain kernel/notifier.c:361 [inline]
 raw_notifier_call_chain+0xe7/0x170 kernel/notifier.c:368
 update_pvclock_gtod kernel/time/timekeeping.c:578 [inline]
 timekeeping_update+0x281/0x3f0 kernel/time/timekeeping.c:672
 timekeeping_advance+0x7cd/0x960 kernel/time/timekeeping.c:2119
 tick_sched_do_timer kernel/time/tick-sched.c:147 [inline]
 tick_sched_timer+0xba/0x410 kernel/time/tick-sched.c:1313
 __run_hrtimer kernel/time/hrtimer.c:1520 [inline]
 __hrtimer_run_queues+0x42d/0x930 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1646
 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
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 sysvec_apic_timer_interrupt+0x133/0x230 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596
RIP: 0010:check_kcov_mode kernel/kcov.c:174 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x33/0x60 kernel/kcov.c:197
Code: 00 fe 01 00 65 8b 15 68 aa 8d 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 04 14 00 00 00 74 2c 8b 91 e0 13 00 00 <83> fa 02 75 21 48 8b 91 e8 13 00 00 48 8b 32 48 8d 7e 01 8b 89 e4
RSP: 0018:ffffc90000f87960 EFLAGS: 00000246
RAX: ffffffff83d63bf0 RBX: 0000000000000000 RCX: ffff8880943e6340
RDX: 0000000000000000 RSI: 0000000000000050 RDI: 0000000000000000
RBP: 0000000000000030 R08: ffffffff83d63bab R09: ffffffff83d6331f
R10: 0000000000000002 R11: ffff8880943e6340 R12: 00000000fffc7a34
R13: ffff88800123cf90 R14: 0000000000000000 R15: 000000000000004f
 vga16fb_fillrect+0xfe0/0x13e0 drivers/video/fbdev/vga16fb.c:922
 bit_clear_margins+0x37b/0x620 drivers/video/fbdev/core/bitblit.c:232
 fbcon_clear_margins drivers/video/fbdev/core/fbcon.c:1381 [inline]
 fbcon_switch+0x1448/0x1e40 drivers/video/fbdev/core/fbcon.c:2363
 redraw_screen+0x4fc/0x16f0 drivers/tty/vt/vt.c:1015
 fbcon_modechanged+0x8d5/0xd90 drivers/video/fbdev/core/fbcon.c:3000
 fb_set_var+0x825/0xcc0 drivers/video/fbdev/core/fbmem.c:1056
 do_fb_ioctl+0x502/0x6f0 drivers/video/fbdev/core/fbmem.c:1109
 vfs_ioctl fs/ioctl.c:48 [inline]
 ksys_ioctl fs/ioctl.c:753 [inline]
 __do_sys_ioctl fs/ioctl.c:762 [inline]
 __se_sys_ioctl+0xf9/0x160 fs/ioctl.c:760
 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
BUG: unable to handle page fault for address: 0000000080010002
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a2748067 P4D a2748067 PUD 0 
Oops: 0002 [#2] PREEMPT SMP KASAN
CPU: 1 PID: 6791 Comm: syz-executor965 Not tainted 5.8.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x0/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:343
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90000da83c0 EFLAGS: 00010007
RAX: 0000000080010002 RBX: 0000000000443ba9 RCX: ffff8880943e6340
RDX: ffff8880943e6340 RSI: ffffffff8c226000 RDI: 0000000000443ba9
RBP: ffffffff81000000 R08: ffffffff816b1cac R09: ffffffff83bd15ae
R10: 0000000000000002 R11: ffff8880943e6340 R12: ffffc90000da8428
R13: ffffc90000da84a0 R14: ffffc90000da8430 R15: ffffffff8c226000
FS:  0000000001d43880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000080010002 CR3: 00000000972d5000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 is_kernel include/linux/kallsyms.h:43 [inline]
 is_ksym_addr include/linux/kallsyms.h:49 [inline]
 kallsyms_lookup+0xa5/0x540 kernel/kallsyms.c:290
 __sprint_symbol+0x51/0x1b0 kernel/kallsyms.c:363
 symbol_string+0xb3/0x210 lib/vsprintf.c:969
BUG: unable to handle page fault for address: 0000000080010002
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a2748067 P4D a2748067 PUD 0 
Oops: 0002 [#3] PREEMPT SMP KASAN
CPU: 1 PID: 6791 Comm: syz-executor965 Not tainted 5.8.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x0/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:343
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90000da7cc0 EFLAGS: 00010087
RAX: 0000000080010002 RBX: ffffffff80ffffff RCX: ffff8880943e6340
RDX: ffff8880943e6340 RSI: ffffffff8c226000 RDI: ffffffff80ffffff
RBP: ffffffff81000000 R08: ffffffff816b1cac R09: ffffffff83bd15ae
R10: 0000000000000002 R11: ffff8880943e6340 R12: ffffc90000da7d28
R13: ffffc90000da7da0 R14: ffffc90000da7d30 R15: ffffffff8c226000
FS:  0000000001d43880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000080010002 CR3: 00000000972d5000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 is_kernel include/linux/kallsyms.h:43 [inline]
 is_ksym_addr include/linux/kallsyms.h:49 [inline]
 kallsyms_lookup+0xa5/0x540 kernel/kallsyms.c:290
BUG: unable to handle page fault for address: 0000000080010002
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a2748067 P4D a2748067 PUD 0 
Oops: 0002 [#4] PREEMPT SMP KASAN
CPU: 1 PID: 6791 Comm: syz-executor965 Not tainted 5.8.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x0/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:343
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90000da75c0 EFLAGS: 00010087
RAX: 0000000080010002 RBX: ffffffff80ffffff RCX: ffff8880943e6340
RDX: ffff8880943e6340 RSI: ffffffff8c226000 RDI: ffffffff80ffffff
RBP: ffffffff81000000 R08: ffffffff816b1cac R09: ffffffff83bd15ae
R10: 0000000000000002 R11: ffff8880943e6340 R12: ffffc90000da7628
R13: ffffc90000da76a0 R14: ffffc90000da7630 R15: ffffffff8c226000
FS:  0000000001d43880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000080010002 CR3: 00000000972d5000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 is_kernel include/linux/kallsyms.h:43 [inline]
 is_ksym_addr include/linux/kallsyms.h:49 [inline]
 kallsyms_lookup+0xa5/0x540 kernel/kallsyms.c:290
BUG: unable to handle page fault for address: 0000000080010002
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a2748067 P4D a2748067 PUD 0 
Oops: 0002 [#5] PREEMPT SMP KASAN
CPU: 1 PID: 6791 Comm: syz-executor965 Not tainted 5.8.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x0/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:343
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90000da6ec0 EFLAGS: 00010087
RAX: 0000000080010002 RBX: ffffffff80ffffff RCX: ffff8880943e6340
RDX: ffff8880943e6340 RSI: ffffffff8c226000 RDI: ffffffff80ffffff
RBP: ffffffff81000000 R08: ffffffff816b1cac R09: ffffffff83bd15ae
R10: 0000000000000002 R11: ffff8880943e6340 R12: ffffc90000da6f28
R13: ffffc90000da6fa0 R14: ffffc90000da6f30 R15: ffffffff8c226000
FS:  0000000001d43880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000080010002 CR3: 00000000972d5000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 is_kernel include/linux/kallsyms.h:43 [inline]
 is_ksym_addr include/linux/kallsyms.h:49 [inline]
 kallsyms_lookup+0xa5/0x540 kernel/kallsyms.c:290
BUG: unable to handle page fault for address: 0000000080010002
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a2748067 P4D a2748067 PUD 0 
Oops: 0002 [#6] PREEMPT SMP KASAN
CPU: 1 PID: 6791 Comm: syz-executor965 Not tainted 5.8.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x0/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:343
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90000da67c0 EFLAGS: 00010087
RAX: 0000000080010002 RBX: ffffffff80ffffff RCX: ffff8880943e6340
RDX: ffff8880943e6340 RSI: ffffffff8c226000 RDI: ffffffff80ffffff
RBP: ffffffff81000000 R08: ffffffff816b1cac R09: ffffffff83bd15ae
R10: 0000000000000002 R11: ffff8880943e6340 R12: ffffc90000da6828
R13: ffffc90000da68a0 R14: ffffc90000da6830 R15: ffffffff8c226000
FS:  0000000001d43880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000080010002 CR3: 00000000972d5000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 is_kernel include/linux/kallsyms.h:43 [inline]
 is_ksym_addr include/linux/kallsyms.h:49 [inline]
 kallsyms_lookup+0xa5/0x540 kernel/kallsyms.c:290
BUG: unable to handle page fault for address: 0000000080010002
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD a2748067 P4D a2748067 PUD 0 
Oops: 0002 [#7] PREEMPT SMP KASAN
CPU: 1 PID: 6791 Comm: syz-executor965 Not tainted 5.8.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:in_gate_area_no_mm+0x0/0x50 arch/x86/entry/vsyscall/vsyscall_64.c:343
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90000da60c0 EFLAGS: 00010087
RAX: 0000000080010002 RBX: ffffffff80ffffff RCX: ffff8880943e6340
RDX: ffff8880943e6340 RSI: ffffffff8c226000 RDI: ffffffff80ffffff
RBP: ffffffff81000000 R08: ffffffff816b1cac R09: ffffffff83bd15ae
R10: 0000000000000002 R11: ffff8880943e6340 R12: ffffc90000da6128
R13: ffffc90000da61a0 R14: ffffc90000da6130 R15: ffffffff8c226000
FS:  0000000001d43880(0000) GS:ffff8880ae900000(0000) knlG
Lost 306 message(s)!