invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 26091 Comm: syz-executor.3 Not tainted 5.9.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:write_seqcount_t_end include/linux/seqlock.h:514 [inline] RIP: 0010:update_pvclock_gtod arch/x86/kvm/x86.c:1761 [inline] RIP: 0010:pvclock_gtod_notify+0x3b6/0x570 arch/x86/kvm/x86.c:7449 Code: 00 48 89 fa 48 c1 ea 03 48 89 05 3d 28 df 0a 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 96 01 00 00 48 8b 83 98 00 00 00 <48> c7 77 00 77 00 8b 48 8b 74 24 10 48 89 05 07 28 df 0a e8 d2 7b RSP: 0018:ffffc90000007be8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffffff8c974980 RCX: ffffffff815a184b RDX: 1ffffffff192e943 RSI: 0000000000000001 RDI: ffffffff8c974a18 RBP: ffffffff89b35860 R08: 0000000000000000 R09: ffffffff8c5f4a1f R10: fffffbfff18be943 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff89ae98e0 FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f552ab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f884b978900 CR3: 000000002b88d000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 update_pvclock_gtod kernel/time/timekeeping.c:581 [inline] timekeeping_update+0x28a/0x4a0 kernel/time/timekeeping.c:675 timekeeping_advance+0x6ad/0xa40 kernel/time/timekeeping.c:2122 tick_do_update_jiffies64.part.0+0x1ec/0x330 kernel/time/tick-sched.c:101 tick_do_update_jiffies64 kernel/time/tick-sched.c:64 [inline] tick_sched_do_timer kernel/time/tick-sched.c:147 [inline] tick_sched_timer+0x236/0x2a0 kernel/time/tick-sched.c:1321 __run_hrtimer kernel/time/hrtimer.c:1524 [inline] __hrtimer_run_queues+0x1d5/0xfc0 kernel/time/hrtimer.c:1588 hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1650 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline] __sysvec_apic_timer_interrupt+0x142/0x5e0 arch/x86/kernel/apic/apic.c:1097 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706 __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+0xb2/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:178 [inline] RIP: 0010:cfb_imageblit+0x864/0x1010 drivers/video/fbdev/core/cfbimgblt.c:302 Code: 24 40 0f 45 5c 24 18 e8 5a 92 ad fd 44 89 e1 44 89 e6 89 d8 44 89 ff d3 e0 09 04 24 e8 45 8e ad fd 45 39 e7 0f 87 45 ff ff ff 37 92 ad fd 48 8b 44 24 10 8b 14 24 48 8d 70 04 48 89 74 24 10 RSP: 0018:ffffc90004797348 EFLAGS: 00000246 RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffffffff83c6b8bb RDX: 000000000000001c RSI: ffff88809555c5c0 RDI: 0000000000000004 RBP: 0000000000000000 R08: ffff8880a2ce19af R09: ffff8880a4415bdf R10: 000000000000001c R11: 1ffff1100a2e8880 R12: 000000000000001c R13: 0000000000000000 R14: ffff8880a2ce19a4 R15: 000000000000001c vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1207 [inline] vga16fb_imageblit+0x693/0x2210 drivers/video/fbdev/vga16fb.c:1260 soft_cursor+0x514/0xa30 drivers/video/fbdev/core/softcursor.c:74 bit_cursor+0x1166/0x17d0 drivers/video/fbdev/core/bitblit.c:386 fbcon_cursor+0x537/0x660 drivers/video/fbdev/core/fbcon.c:1411 fbcon_scroll+0x222/0x3600 drivers/video/fbdev/core/fbcon.c:1888 con_scroll+0x5b9/0x6d0 drivers/tty/vt/vt.c:629 lf+0x26b/0x2c0 drivers/tty/vt/vt.c:1490 vc_con_write_normal drivers/tty/vt/vt.c:2806 [inline] do_con_write+0xedd/0x1d70 drivers/tty/vt/vt.c:2910 con_write+0x22/0xb0 drivers/tty/vt/vt.c:3250 n_tty_write+0xa38/0xf80 drivers/tty/n_tty.c:2356 do_tty_write drivers/tty/tty_io.c:962 [inline] tty_write+0x4d9/0x870 drivers/tty/tty_io.c:1046 do_loop_readv_writev fs/read_write.c:737 [inline] do_loop_readv_writev fs/read_write.c:721 [inline] do_iter_write+0x489/0x670 fs/read_write.c:1020 compat_writev+0x1ea/0x390 fs/read_write.c:1371 do_compat_writev+0xd5/0x1d0 fs/read_write.c:1392 do_syscall_32_irqs_on arch/x86/entry/common.c:84 [inline] __do_fast_syscall_32+0x57/0x80 arch/x86/entry/common.c:126 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:149 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f51549 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f552a0cc EFLAGS: 00000296 ORIG_RAX: 0000000000000092 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200005c0 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace becc93fb549de438 ]--- RIP: 0010:write_seqcount_t_end include/linux/seqlock.h:514 [inline] RIP: 0010:update_pvclock_gtod arch/x86/kvm/x86.c:1761 [inline] RIP: 0010:pvclock_gtod_notify+0x3b6/0x570 arch/x86/kvm/x86.c:7449 Code: 00 48 89 fa 48 c1 ea 03 48 89 05 3d 28 df 0a 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 96 01 00 00 48 8b 83 98 00 00 00 <48> c7 77 00 77 00 8b 48 8b 74 24 10 48 89 05 07 28 df 0a e8 d2 7b RSP: 0018:ffffc90000007be8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffffff8c974980 RCX: ffffffff815a184b RDX: 1ffffffff192e943 RSI: 0000000000000001 RDI: ffffffff8c974a18 RBP: ffffffff89b35860 R08: 0000000000000000 R09: ffffffff8c5f4a1f R10: fffffbfff18be943 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff89ae98e0 FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f552ab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f884b978900 CR3: 000000002b88d000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400