syzbot


WARNING in exception_type

Status: auto-closed as invalid on 2022/03/24 01:16
Reported-by: syzbot+ba0f4a8a9b058f16e3da@syzkaller.appspotmail.com
First crash: 1106d, last: 1106d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in exception_type kvm C error 1 1192d 1191d 20/28 fixed on 2021/11/10 00:50

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 15091 at arch/x86/kvm/x86.c:392 exception_type.cold+0x11/0x1e arch/x86/kvm/x86.c:392
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 15091 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:exception_type.cold+0x11/0x1e arch/x86/kvm/x86.c:392
Code: 70 f9 89 ee 48 c7 c7 40 23 62 88 41 83 cc ff e8 d2 e1 01 00 e9 20 c2 18 f9 e8 5d b0 70 f9 48 c7 c7 a0 23 62 88 e8 bc e1 01 00 <0f> 0b 41 bd 03 00 00 00 e9 6d c5 18 f9 e8 3f b0 70 f9 48 c7 c7 a0
RSP: 0018:ffff88805150f9f0 EFLAGS: 00010282
RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000018e34 RSI: ffffffff814dff01 RDI: ffffed100a2a1f30
RBP: ffff88805150fbb0 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000000000d0
R13: ffff8880569e8400 R14: 0000000000000000 R15: dffffc0000000000
 inject_pending_event arch/x86/kvm/x86.c:7186 [inline]
 vcpu_enter_guest arch/x86/kvm/x86.c:7691 [inline]
 vcpu_run arch/x86/kvm/x86.c:7920 [inline]
 kvm_arch_vcpu_ioctl_run+0x1d97/0x6f70 arch/x86/kvm/x86.c:8120
 kvm_vcpu_ioctl+0x493/0xe10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2847
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fbfeecf1ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbfec267188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fbfeee04f60 RCX: 00007fbfeecf1ae9
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 00007fbfeed4bf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdbe24a2df R14: 00007fbfec267300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/11/24 01:15 linux-4.19.y 3f8a27f9e27b 545ab074 .config console log report info ci2-linux-4-19 WARNING in exception_type
* Struck through repros no longer work on HEAD.