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general protection fault in pvclock_gtod_notify

Status: closed as dup on 2020/06/30 06:12
Subsystems: kvm
[Documentation on labels]
Reported-by: syzbot+b46fb19f175c5c7d1f03@syzkaller.appspotmail.com
First crash: 1460d, last: 1311d
▶ ▼ Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
general protection fault in syscall_return_slowpath kernel syz inconclusive done 1 1416d 1503d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
general protection fault in pvclock_gtod_notify 1 (2) 2020/06/30 06:12
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream general protection fault in pvclock_gtod_notify (2) kvm 10 1300d 1306d 0/26 closed as dup on 2020/09/25 12:16

Sample crash report:
general protection fault, probably for non-canonical address 0xdffffc001192eb3a: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x000000008c9759d0-0x000000008c9759d7]
CPU: 0 PID: 14918 Comm: syz-executor545 Not tainted 5.9.0-rc4-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:1752 [inline]
RIP: 0010:pvclock_gtod_notify+0x2bf/0x570 arch/x86/kvm/x86.c:7449
Code: 80 3c 02 00 0f 85 9c 02 00 00 48 70 77 77 07 8d 7b 50 48 89 fa 48 c1 ea 03 48 89 05 fb 38 df 0a 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e e7 01 00 00 8b 43 50 48 8d 7b
RSP: 0018:ffffc90000007be8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: ffffffff8c975980 RCX: ffffffff815a184b
RDX: 000000001192eb3a RSI: 0000000000000001 RDI: 000000008c9759d0
RBP: ffffffff89b35860 R08: 0000000000000000 R09: ffffffff8c5f5a1f
R10: fffffbfff18beb43 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff89ae98e0
FS:  00007fd63a073700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000188 CR3: 0000000091269000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 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
 </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+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:rdtsc_ordered arch/x86/include/asm/msr.h:243 [inline]
RIP: 0010:delay_tsc+0x4b/0xb0 arch/x86/lib/delay.c:72
Code: c1 e2 20 48 09 c2 48 89 d5 eb 16 f3 90 bf 01 00 00 00 e8 98 76 99 fd e8 63 38 3e 04 44 39 e0 75 36 0f 01 f9 66 90 48 c1 e2 20 <48> 89 d3 48 09 c3 48 89 d8 48 29 e8 4c 39 e8 73 24 bf 01 00 00 00
RSP: 0018:ffffc900028f78c0 EFLAGS: 00000206
RAX: 00000000a4344943 RBX: 000003a1a434487e RCX: 0000000000000000
RDX: 000003a100000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 000003a1a41de1b0 R08: 0000000000000001 R09: ffff8880a2c4d1cf
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000231872 R14: 0000000000000000 R15: dffffc0000000000
 vga16fb_set_par+0x79b/0xa90 drivers/video/fbdev/vga16fb.c:625
 fb_set_var+0x4ba/0xce0 drivers/video/fbdev/core/fbmem.c:1028
 do_fb_ioctl+0x2f9/0x690 drivers/video/fbdev/core/fbmem.c:1104
 fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1181
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x44b0a9
Code: e8 1c e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0b 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd63a072ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000006e2c48 RCX: 000000000044b0a9
RDX: 0000000020000000 RSI: 0000000000004601 RDI: 0000000000000003
RBP: 00000000006e2c40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e2c4c
R13: 00007ffe72b2735f R14: 00007fd63a0739c0 R15: 20c49ba5e353f7cf
Modules linked in:
---[ end trace 6930d3809654eaca ]---
RIP: 0010:update_pvclock_gtod arch/x86/kvm/x86.c:1752 [inline]
RIP: 0010:pvclock_gtod_notify+0x2bf/0x570 arch/x86/kvm/x86.c:7449
Code: 80 3c 02 00 0f 85 9c 02 00 00 48 70 77 77 07 8d 7b 50 48 89 fa 48 c1 ea 03 48 89 05 fb 38 df 0a 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e e7 01 00 00 8b 43 50 48 8d 7b
RSP: 0018:ffffc90000007be8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: ffffffff8c975980 RCX: ffffffff815a184b
RDX: 000000001192eb3a RSI: 0000000000000001 RDI: 000000008c9759d0
RBP: ffffffff89b35860 R08: 0000000000000000 R09: ffffffff8c5f5a1f
R10: fffffbfff18beb43 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff89ae98e0
FS:  00007fd63a073700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000188 CR3: 0000000091269000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (69):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/09/08 03:17 upstream f4d51dffc6c0 abf9ba4f .config console log report syz C ci-upstream-kasan-gce
2020/07/26 22:58 upstream 04300d66f0a0 51265195 .config console log report syz C ci-upstream-kasan-gce-smack-root
2020/07/26 22:38 upstream 04300d66f0a0 51265195 .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/07/25 18:56 upstream 68845a55c31b 1f7cc1ca .config console log report syz C ci-upstream-kasan-gce
2020/07/25 16:41 upstream 68845a55c31b 1f7cc1ca .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/07/25 08:46 upstream 68845a55c31b 1f7cc1ca .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/07/23 08:58 upstream 8c26c87b0532 340ea530 .config console log report syz C ci-upstream-kasan-gce
2020/07/21 01:51 upstream 5714ee50bb43 4285ffa3 .config console log report syz C ci-upstream-kasan-gce-root
2020/07/16 01:28 upstream e9919e11e219 f3bec699 .config console log report syz C ci-upstream-kasan-gce
2020/07/10 18:09 upstream 42f82040ee66 edf162e8 .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/07/09 22:23 upstream 0bddd227f3dc bc238812 .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/07/09 00:46 upstream 0bddd227f3dc bc238812 .config console log report syz C ci-upstream-kasan-gce-root
2020/07/08 04:49 upstream 7cc2a8ea1048 51095195 .config console log report syz C ci-upstream-kasan-gce
2020/07/07 16:29 upstream 7cc2a8ea1048 51095195 .config console log report syz C ci-upstream-kasan-gce-smack-root
2020/07/07 06:33 upstream 7cc2a8ea1048 51095195 .config console log report syz C ci-upstream-kasan-gce
2020/07/05 20:40 upstream 7cc2a8ea1048 51095195 .config console log report syz C ci-upstream-kasan-gce-root
2020/07/05 20:20 upstream 7cc2a8ea1048 51095195 .config console log report syz C ci-upstream-kasan-gce
2020/07/04 01:09 upstream 7cc2a8ea1048 51095195 .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/07/03 15:46 upstream cd77006e01b3 bed10395 .config console log report syz C ci-upstream-kasan-gce-root
2020/07/03 15:00 upstream cd77006e01b3 bed10395 .config console log report syz C ci-upstream-kasan-gce-smack-root
2020/07/03 12:30 upstream cd77006e01b3 bed10395 .config console log report syz C ci-upstream-kasan-gce
2020/07/03 10:20 upstream cd77006e01b3 bed10395 .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/07/03 03:19 upstream cd77006e01b3 bed10395 .config console log report syz C ci-upstream-kasan-gce-root
2020/07/03 02:33 upstream cd77006e01b3 bed10395 .config console log report syz C ci-upstream-kasan-gce
2020/06/30 14:24 upstream 4e99b32169e8 a2cdad9d .config console log report syz C ci-upstream-kasan-gce-root
2020/06/30 14:10 upstream 4e99b32169e8 a2cdad9d .config console log report syz C ci-upstream-kasan-gce
2020/06/30 13:14 upstream 4e99b32169e8 a2cdad9d .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/06/30 12:46 upstream 4e99b32169e8 a2cdad9d .config console log report syz C ci-upstream-kasan-gce
2020/06/30 01:23 upstream 4e99b32169e8 a2cdad9d .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/06/29 18:14 upstream 4e99b32169e8 a2cdad9d .config console log report syz C ci-upstream-kasan-gce-selinux-root
2020/06/29 17:58 upstream 4e99b32169e8 a2cdad9d .config console log report syz C ci-upstream-kasan-gce
2020/06/28 07:21 upstream 1590a2e1c681 ffec44b5 .config console log report syz C ci-upstream-kasan-gce
2020/06/26 20:30 upstream 4a21185cda0f aea82c00 .config console log report syz C ci-upstream-kasan-gce-smack-root
2020/06/26 20:07 upstream 4a21185cda0f aea82c00 .config console log report syz C ci-upstream-kasan-gce
2020/07/26 04:44 upstream 23ee3e4e5bd2 1f7cc1ca .config console log report syz C ci-upstream-kasan-gce-386
2020/07/23 23:52 upstream d15be546031c 70c104a1 .config console log report syz C ci-upstream-kasan-gce-386
2020/07/23 20:53 upstream d15be546031c 70c104a1 .config console log report syz C ci-upstream-kasan-gce-386
2020/07/08 07:40 upstream 7cc2a8ea1048 51095195 .config console log report syz C ci-upstream-kasan-gce-386
2020/07/07 06:53 upstream 7cc2a8ea1048 51095195 .config console log report syz C ci-upstream-kasan-gce-386
2020/06/30 14:32 upstream 4e99b32169e8 a2cdad9d .config console log report syz C ci-upstream-kasan-gce-386
2020/06/29 18:23 upstream 4e99b32169e8 a2cdad9d .config console log report syz C ci-upstream-kasan-gce-386
2020/06/28 11:39 upstream 1590a2e1c681 ffec44b5 .config console log report syz C ci-upstream-kasan-gce-386
2020/06/26 20:37 upstream 4a21185cda0f aea82c00 .config console log report syz C ci-upstream-kasan-gce-386
2020/07/11 14:05 linux-next d31958b30ea3 18d18b59 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2020/07/10 00:50 linux-next 8903263671cb bc238812 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2020/07/09 20:45 linux-next 8903263671cb bc238812 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2020/07/03 18:21 linux-next aab2003999e7 bed10395 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2020/07/03 03:29 linux-next aab2003999e7 bed10395 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2020/06/27 19:55 linux-next 36e3135df4d4 ffec44b5 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2020/09/16 11:11 upstream fc4f28bb3daf 18d7d030 .config console log report info ci-upstream-kasan-gce-smack-root
2020/09/16 06:55 upstream fc4f28bb3daf 18d7d030 .config console log report info ci-upstream-kasan-gce-smack-root
2020/09/15 15:03 upstream fc4f28bb3daf 6989d6f6 .config console log report info ci-upstream-kasan-gce-smack-root
2020/09/14 02:53 upstream e4c26faa426c 2d3cdd63 .config console log report ci-upstream-kasan-gce-smack-root
2020/09/11 07:36 upstream 581cb3a26baf adfb8b4e .config console log report ci-upstream-kasan-gce-smack-root
2020/09/08 19:59 upstream 612ab8ad6414 abf9ba4f .config console log report ci-upstream-kasan-gce-selinux-root
2020/09/07 18:58 upstream f4d51dffc6c0 abf9ba4f .config console log report ci-upstream-kasan-gce-smack-root
2020/09/07 00:56 upstream a8205e310011 abf9ba4f .config console log report ci-upstream-kasan-gce-smack-root
2020/09/07 00:41 upstream a8205e310011 abf9ba4f .config console log report ci-upstream-kasan-gce-smack-root
2020/09/06 14:36 upstream dd9fb9bb3340 abf9ba4f .config console log report ci-upstream-kasan-gce-smack-root
2020/08/30 22:44 upstream 1127b219ce94 d5a3ae1f .config console log report ci-upstream-kasan-gce
2020/08/30 05:13 upstream 1127b219ce94 d5a3ae1f .config console log report ci-upstream-kasan-gce
2020/08/28 18:24 upstream 15bc20c6af4c d5a3ae1f .config console log report ci-upstream-kasan-gce
2020/08/24 01:56 upstream cb95712138ec cef5ae68 .config console log report ci-upstream-kasan-gce
2020/08/23 09:59 upstream c3d8f220d012 1da71ab0 .config console log report ci-upstream-kasan-gce
2020/07/23 07:12 upstream 8c26c87b0532 340ea530 .config console log report ci-upstream-kasan-gce-smack-root
2020/04/20 00:38 upstream 0fe5f9ca2235 9f7c6d12 .config console log report ci-upstream-kasan-gce-smack-root
2020/09/01 11:22 linux-next b36c969764ab d5a3ae1f .config console log report ci-upstream-linux-next-kasan-gce-root
2020/08/25 06:49 linux-next d8be0e12a522 344da168 .config console log report ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.