general protection fault, probably for non-canonical address 0x1ffffffff1707b7d: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10623 Comm: syz-executor.0 Not tainted 5.9.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:update_pvclock_gtod arch/x86/kvm/x86.c:1741 [inline] RIP: 0010:pvclock_gtod_notify+0xbf/0x490 arch/x86/kvm/x86.c:7449 Code: 24 20 48 c7 c7 b8 5a d8 8a 31 f6 31 d2 31 c9 41 b8 01 00 00 00 45 31 c9 41 56 e8 7c 87 4c 00 48 83 c4 08 4c 89 f8 48 c1 e8 03 <42> 00 00 00 00 74 08 4c 89 ff e8 92 60 a7 00 49 8b 1f 48 83 c3 4c RSP: 0018:ffffc90000007c50 EFLAGS: 00010806 RAX: 1ffffffff1707b7d RBX: 0000000000010001 RCX: ffffffff815acc04 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: 0000000000000086 RBP: ffffffff894bd1a8 R08: dffffc0000000000 R09: fffffbfff167d8a0 R10: fffffbfff167d8a0 R11: 0000000000000000 R12: dffffc0000000000 R13: 00000000ffffffff R14: ffffffff814f6117 R15: ffffffff8b83dbe8 FS: 00007f3ae158f700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000021000000 CR3: 0000000194372000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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:581 [inline] timekeeping_update+0x281/0x3f0 kernel/time/timekeeping.c:675 timekeeping_advance+0x830/0xa00 kernel/time/timekeeping.c:2122 tick_sched_do_timer kernel/time/tick-sched.c:147 [inline] tick_sched_timer+0xba/0x410 kernel/time/tick-sched.c:1321 __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 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+0x94/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:__sanitizer_cov_trace_pc+0x42/0x60 kernel/kcov.c:202 Code: ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 24 14 00 00 00 74 2c 8b 91 00 14 00 00 83 fa 02 75 21 48 8b 91 08 14 00 00 48 8b 32 <48> 8d 7e 01 8b 89 04 14 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 RSP: 0018:ffffc9001bb67510 EFLAGS: 00000246 RAX: ffffffff83d5461b RBX: 000000000000001c RCX: ffff88805c378280 RDX: ffffc90005ff9000 RSI: 000000000003ffff RDI: 0000000000000014 RBP: 0000000000000014 R08: ffffffff83d54612 R09: ffffffff83d53d7c R10: 0000000000000002 R11: ffff88805c378280 R12: 0000000000000000 R13: ffff8880a323c824 R14: 0000000000000077 R15: 0000000000000002 slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:177 [inline] cfb_imageblit+0xb0b/0x11e0 drivers/video/fbdev/core/cfbimgblt.c:302 soft_cursor+0xb44/0xdb0 drivers/video/fbdev/core/softcursor.c:74 bit_cursor+0x178a/0x2180 drivers/video/fbdev/core/bitblit.c:386 fbcon_scroll+0x1e8/0x6150 drivers/video/fbdev/core/fbcon.c:1888 con_scroll+0x517/0x7b0 drivers/tty/vt/vt.c:629 lf drivers/tty/vt/vt.c:1490 [inline] vc_con_write_normal drivers/tty/vt/vt.c:2806 [inline] do_con_write+0x1363/0xd580 drivers/tty/vt/vt.c:2910 con_write+0x20/0x40 drivers/tty/vt/vt.c:3250 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0xcbf/0x1170 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:962 [inline] tty_write+0x593/0x940 drivers/tty/tty_io.c:1046 vfs_write+0x2d3/0xd10 fs/read_write.c:576 ksys_write+0x11b/0x220 fs/read_write.c:631 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f3ae158ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000038900 RCX: 000000000045d5b9 RDX: 0000000000001006 RSI: 0000000020001440 RDI: 0000000000000004 RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffe0ad9872f R14: 00007f3ae158f9c0 R15: 000000000118cf4c Modules linked in: ---[ end trace c29eca254e7c34ea ]--- RIP: 0010:update_pvclock_gtod arch/x86/kvm/x86.c:1741 [inline] RIP: 0010:pvclock_gtod_notify+0xbf/0x490 arch/x86/kvm/x86.c:7449 Code: 24 20 48 c7 c7 b8 5a d8 8a 31 f6 31 d2 31 c9 41 b8 01 00 00 00 45 31 c9 41 56 e8 7c 87 4c 00 48 83 c4 08 4c 89 f8 48 c1 e8 03 <42> 00 00 00 00 74 08 4c 89 ff e8 92 60 a7 00 49 8b 1f 48 83 c3 4c RSP: 0018:ffffc90000007c50 EFLAGS: 00010806 RAX: 1ffffffff1707b7d RBX: 0000000000010001 RCX: ffffffff815acc04 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: 0000000000000086 RBP: ffffffff894bd1a8 R08: dffffc0000000000 R09: fffffbfff167d8a0 R10: fffffbfff167d8a0 R11: 0000000000000000 R12: dffffc0000000000 R13: 00000000ffffffff R14: ffffffff814f6117 R15: ffffffff8b83dbe8 FS: 00007f3ae158f700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000021000000 CR3: 0000000194372000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400