syzbot


WARNING in handle_exception_nmi (2)

Status: upstream: reported C repro on 2022/02/22 05:18
Subsystems: kvm
[Documentation on labels]
Reported-by: syzbot+4688c50a9c8e68e7aaa1@syzkaller.appspotmail.com
First crash: 759d, last: 9d07h
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in handle_exception (log)
Repro: C syz .config
  
Fix bisection the fix commit could be any of (bisect log):
  7a68065eb9cd Merge tag 'gpio-fixes-for-v5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
  3cc40a443a04 Merge tag 'nios2_fixes_v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux
  
Discussions (4)
Title Replies (including bot) Last reply
[syzbot] Monthly kvm report (Jan 2024) 0 (1) 2024/01/19 10:35
[syzbot] Monthly kvm report (Dec 2023) 0 (1) 2023/12/16 23:58
[syzbot] Monthly kvm report (Jul 2023) 1 (2) 2023/07/10 20:28
[syzbot] WARNING in handle_exception_nmi (2) 1 (3) 2022/06/13 17:54
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in handle_exception_nmi origin:upstream missing-backport C 25 5d15h 294d 0/3 upstream: reported C repro on 2023/05/29 20:49
linux-5.15 WARNING in handle_exception_nmi origin:upstream C 21 20d 305d 0/3 upstream: reported C repro on 2023/05/19 01:30
upstream WARNING in handle_exception_nmi kvm C error done 2653 1259d 1264d 15/26 fixed on 2020/11/16 12:12
Last patch testing requests (10)
Created Duration User Patch Repo Result
2024/03/09 19:03 15m retest repro upstream report log
2024/03/09 19:03 14m retest repro upstream report log
2024/03/09 19:03 20m retest repro upstream report log
2024/03/09 19:03 21m retest repro upstream report log
2024/03/09 19:03 20m retest repro upstream report log
2024/03/09 13:28 21m retest repro linux-next error OK
2024/03/09 13:28 21m retest repro linux-next error OK
2024/03/09 13:28 22m retest repro linux-next error OK
2024/03/09 13:28 24m retest repro linux-next error OK
2024/02/24 10:07 19m retest repro upstream report log
Fix bisection attempts (2)
Created Duration User Patch Repo Result
2022/08/17 05:51 31m bisect fix upstream job log (2)
2022/07/12 20:17 28m bisect fix upstream job log (0) log
Cause bisection attempts (2)
Created Duration User Patch Repo Result
2023/10/17 15:58 3h13m bisect upstream job log (0) log
2022/06/12 22:43 6h54m bisect upstream job log (0) log
marked invalid by nogikh@google.com

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 10801 at arch/x86/kvm/vmx/vmx.c:5251 handle_exception_nmi+0xfdc/0x11e0 arch/x86/kvm/vmx/vmx.c:5251
Modules linked in:
CPU: 0 PID: 10801 Comm: syz-executor818 Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:handle_exception_nmi+0xfdc/0x11e0 arch/x86/kvm/vmx/vmx.c:5251
Code: ff 31 ff 41 89 c4 89 c6 e8 b1 80 62 00 45 85 e4 0f 85 2b ff ff ff e8 33 85 62 00 90 0f 0b 90 e9 1d ff ff ff e8 25 85 62 00 90 <0f> 0b 90 e9 7d f6 ff ff e8 17 85 62 00 31 f6 48 89 df e8 5d bc ee
RSP: 0018:ffffc9000341fab0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888028d60940 RCX: ffffffff8123d2d8
RDX: ffff88807ce66040 RSI: ffffffff8123dc5b RDI: 0000000000000001
RBP: 00000000009d23e2 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff888028d60a18 R15: ffff888016e91000
FS:  00007fa4c2fec6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffaa101fe4 CR3: 000000001e666000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __vmx_handle_exit arch/x86/kvm/vmx/vmx.c:6567 [inline]
 vmx_handle_exit+0x641/0x1ad0 arch/x86/kvm/vmx/vmx.c:6584
 vcpu_enter_guest arch/x86/kvm/x86.c:10992 [inline]
 vcpu_run+0x2ed2/0x4e40 arch/x86/kvm/x86.c:11095
 kvm_arch_vcpu_ioctl_run+0x42e/0x1670 arch/x86/kvm/x86.c:11321
 kvm_vcpu_ioctl+0x59f/0x1050 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4155
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl fs/ioctl.c:857 [inline]
 __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fa4c3036589
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 1b 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa4c2fec168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa4c30b9408 RCX: 00007fa4c3036589
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006
RBP: 00007fa4c30b9400 R08: 00007fa4c2fec6c0 R09: 0000000000000000
R10: 00007fa4c2fec6c0 R11: 0000000000000246 R12: 00007fa4c30b940c
R13: 0000000000000016 R14: 00007ffd6515bfa0 R15: 00007ffd6515c088
 </TASK>

Crashes (146):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/12/20 10:14 upstream 55cb5f43689d 3ad490ea .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in handle_exception_nmi
2023/10/18 05:54 upstream 06dc10eae55b 342b9c55 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/10/15 03:41 upstream 70f8c6f8f880 6388bc36 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/10/05 08:46 upstream ba7d997a2a29 b7d7ff54 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/10/05 08:11 upstream ba7d997a2a29 b7d7ff54 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/10/05 06:50 upstream ba7d997a2a29 b7d7ff54 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/10/05 06:20 upstream ba7d997a2a29 b7d7ff54 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/07/12 09:00 upstream 3f01e9fed845 2f19aa4f .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in handle_exception_nmi
2023/05/29 23:01 upstream ac2263b588df cf184559 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/23 19:24 upstream ae8373a5add4 4bce1a3e .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/05/19 09:28 upstream 2d1bcbc6cd70 3bb7af1d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/19 08:54 upstream 2d1bcbc6cd70 3bb7af1d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/19 03:28 upstream 4d6d4c7f541d 3bb7af1d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/19 02:57 upstream 4d6d4c7f541d 3bb7af1d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/19 01:18 upstream 4d6d4c7f541d 3bb7af1d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in handle_exception_nmi
2023/05/19 01:15 upstream 4d6d4c7f541d 3bb7af1d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2022/09/17 03:40 upstream 6879c2d3b960 dd9a85ff .config strace log report syz C ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2022/09/15 15:24 upstream 3245cb65fd91 dd9a85ff .config strace log report syz C [disk image] [vmlinux] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2022/09/15 14:48 upstream 3245cb65fd91 dd9a85ff .config strace log report syz C [disk image] [vmlinux] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/12/14 14:53 upstream 5bd7ef53ffe5 3222d10c .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in handle_exception_nmi
2023/12/14 07:39 upstream 5bd7ef53ffe5 3222d10c .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in handle_exception_nmi
2023/05/19 02:13 upstream 4d6d4c7f541d 3bb7af1d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/19 01:42 upstream 4d6d4c7f541d 3bb7af1d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/19 01:12 upstream 4d6d4c7f541d 3bb7af1d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2022/12/11 19:45 upstream 4cee37b3a4e6 67be1ae7 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2022/06/12 07:34 upstream 7a68065eb9cd 0d5abf15 .config strace log report syz C ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/08/09 18:44 linux-next 21ef7b1e17d0 13ca4cd6 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/08/03 22:47 linux-next fb4327106e52 74621247 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/08/03 22:18 linux-next fb4327106e52 74621247 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/08/03 17:34 linux-next fb4327106e52 39a91c18 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/08/03 17:03 linux-next fb4327106e52 39a91c18 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/08/03 16:27 linux-next fb4327106e52 39a91c18 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/05/19 01:14 linux-next 715abedee4cd 3bb7af1d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2022/08/29 05:25 linux-next 8d0c42c9e807 07177916 .config strace log report syz C ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2022/08/29 04:53 linux-next 8d0c42c9e807 07177916 .config strace log report syz C ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2024/01/10 10:27 upstream 6c1dd1fe5d8a b438bd66 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in handle_exception_nmi
2023/10/05 07:34 upstream ba7d997a2a29 b7d7ff54 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/01/30 14:01 linux-next e2f86c02fdc9 9dfcf09c .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/10/18 01:35 upstream 213f891525c2 342b9c55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/10/16 18:17 upstream 58720809f527 6388bc36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in handle_exception_nmi
2023/09/15 13:10 upstream 9fdfb15a3dbf 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/09/14 07:50 upstream aed8aee11130 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in handle_exception_nmi
2023/09/11 06:59 upstream 0bb80ecc33a8 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/09/11 06:59 upstream 0bb80ecc33a8 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/09/09 04:44 upstream a48fa7efaf11 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/09/06 01:31 upstream 7733171926cc 8bc9053e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/09/03 23:24 upstream db906f0ca6bb 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/09/03 23:34 upstream 708283abf896 696ea0d2 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in handle_exception_nmi
2023/08/27 11:57 upstream 28f20a19294d 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/07/09 10:53 upstream 1c7873e33645 668cb1fa .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/06/21 01:08 upstream 99ec1ed7c2ed 09ffe269 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/06/20 23:18 upstream 692b7dc87ca6 0cf1feea .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in handle_exception_nmi
2023/06/20 23:17 upstream 692b7dc87ca6 0cf1feea .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in handle_exception_nmi
2023/06/13 23:40 upstream fb054096aea0 d2ee9228 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in handle_exception_nmi
2023/06/13 17:05 upstream fb054096aea0 2f9d8e43 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in handle_exception_nmi
2023/06/13 15:38 upstream fb054096aea0 749afb64 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/06/09 03:52 upstream 25041a4c02c7 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/06/09 03:42 upstream 25041a4c02c7 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/06/01 13:00 upstream 929ed21dfdb6 babc4389 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in handle_exception_nmi
2023/05/31 10:54 upstream afead42fdfca 09898419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/31 06:36 upstream afead42fdfca 09898419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in handle_exception_nmi
2023/05/31 04:55 upstream afead42fdfca 09898419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/05/31 03:12 upstream afead42fdfca 09898419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/31 02:41 upstream afead42fdfca 09898419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/31 02:41 upstream afead42fdfca 09898419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/31 02:12 upstream afead42fdfca 09898419 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in handle_exception_nmi
2023/05/31 02:12 upstream afead42fdfca 09898419 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in handle_exception_nmi
2023/05/29 23:03 upstream 8b817fded42d cf184559 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in handle_exception_nmi
2023/05/29 22:28 upstream 8b817fded42d cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/05/29 22:17 upstream 8b817fded42d cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2023/05/29 20:54 upstream ac2263b588df cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/19 01:20 upstream 4d6d4c7f541d 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in handle_exception_nmi
2023/05/19 01:13 upstream 4d6d4c7f541d 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in handle_exception_nmi
2023/05/19 00:55 upstream 4d6d4c7f541d 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in handle_exception_nmi
2023/05/19 00:53 upstream 4d6d4c7f541d 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in handle_exception_nmi
2022/02/18 05:11 upstream 80d47f5de5e3 3cd800e4 .config console log report info ci-qemu-upstream WARNING in handle_exception_nmi
2023/09/14 10:28 linux-next 98897dc735cf 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/09/11 08:42 linux-next 7bc675554773 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/09/10 09:18 linux-next af3c30d33476 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/06/16 00:43 linux-next 925294c9aa18 757d26ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/05/24 03:37 linux-next 715abedee4cd 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/05/19 01:23 linux-next 715abedee4cd 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
2023/05/19 00:53 linux-next 715abedee4cd 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in handle_exception_nmi
* Struck through repros no longer work on HEAD.