syzbot


WARNING in kvm_arch_vcpu_ioctl_run

Status: premoderation: reported C repro on 2025/07/17 01:43
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+96aad9f42a04751b9fa2@syzkaller.appspotmail.com
First crash: 34d, last: 17h26m
Bug presence (2)
Date Name Commit Repro Result
2025/07/17 lts (merge base) e0e2f7824338 C [report] WARNING in kvm_arch_vcpu_ioctl_run
2025/07/17 upstream (ToT) e2291551827f C [report] WARNING in kvm_arch_vcpu_ioctl_run
Similar bugs (10)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in kvm_arch_vcpu_ioctl_run (5) kvm-x86 -1 C error 343 711d 799d 23/29 fixed on 2023/10/12 12:47
upstream WARNING in kvm_arch_vcpu_ioctl_run (4) kvm-x86 -1 C error 288 804d 887d 22/29 fixed on 2023/06/08 14:41
upstream WARNING in kvm_arch_vcpu_ioctl_run (2) kvm-x86 -1 C 61018 2759d 2848d 4/29 fixed on 2018/03/13 09:44
upstream WARNING in kvm_arch_vcpu_ioctl_run (6) kvm-x86 -1 C 75 12h00m 33d 0/29 upstream: reported C repro on 2025/07/17 14:50
upstream WARNING in kvm_arch_vcpu_ioctl_run -1 C 20284 2885d 2950d 3/29 fixed on 2017/09/26 01:38
linux-4.14 WARNING in kvm_arch_vcpu_ioctl_run -1 C inconclusive 71 1070d 2247d 0/1 upstream: reported C repro on 2019/06/25 23:07
upstream WARNING in kvm_arch_vcpu_ioctl_run (3) kvm-x86 -1 C done error 16157 908d 2701d 22/29 fixed on 2023/02/24 13:50
linux-4.19 WARNING in kvm_arch_vcpu_ioctl_run -1 C error 116 980d 2255d 0/1 upstream: reported C repro on 2019/06/17 10:07
linux-5.15 WARNING in kvm_arch_vcpu_ioctl_run origin:lts-only -1 C inconclusive 990 1d08h 864d 0/3 upstream: reported C repro on 2023/04/09 03:02
linux-6.1 WARNING in kvm_arch_vcpu_ioctl_run origin:lts-only -1 C done 560 2d18h 880d 0/3 upstream: reported C repro on 2023/03/23 13:22

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 296 at arch/x86/kvm/x86.c:11569 kvm_arch_vcpu_ioctl_run+0x12af/0x1aa0 arch/x86/kvm/x86.c:11569
Modules linked in:
CPU: 0 UID: 0 PID: 296 Comm: syz-executor318 Not tainted 6.12.38-syzkaller-g450db842cf3b #0 67dc9e25005870c23be976f8e40d6eb6654f4075
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:kvm_arch_vcpu_ioctl_run+0x12af/0x1aa0 arch/x86/kvm/x86.c:11569
Code: 7e 3b e8 34 06 6a 00 49 bd 00 00 00 00 00 fc ff df 4c 8b 7c 24 20 4c 8b 64 24 40 48 8b 5c 24 28 e9 26 fd ff ff e8 11 06 6a 00 <0f> 0b e9 e4 fc ff ff e8 05 06 6a 00 0f 0b e9 0e fd ff ff e8 f9 05
RSP: 0018:ffffc9000122f9c0 EFLAGS: 00010293
RAX: ffffffff811bd81f RBX: ffff888118bfc300 RCX: ffff8881027aa600
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000122fc70 R08: ffff8881027aa607 R09: 1ffff110204f54c0
R10: dffffc0000000000 R11: ffffed10204f54c1 R12: ffff88810c6c1000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff888118bfc378
FS:  00005555736e4380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000005200000c CR3: 000000012d576000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 kvm_vcpu_ioctl+0x96f/0xee0 virt/kvm/kvm_main.c:4511
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0x135/0x1b0 fs/ioctl.c:893
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:893
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f1983513439
Code: 48 83 c4 28 c3 e8 37 17 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe2bb49fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffe2bb4a1a8 RCX: 00007f1983513439
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 00007f1983586610 R08: 00000000836f3000 R09: 00000000836f3000
R10: 00000000836f3000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe2bb4a198 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
---[ end trace 0000000000000000 ]---

Crashes (27):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/08/15 05:20 android16-6.12 450db842cf3b 1804e95e .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/07/28 02:56 android16-6.12 e9bbc29c066a fb8f743d .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/07/19 17:57 android16-6.12 73009db42b37 7117feec .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/07/17 01:42 android16-6.12 3bff0858a069 44f8051e .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/19 11:09 android16-6.12 0d89690c20b1 523f460e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/18 18:29 android16-6.12 138082a93991 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/17 23:58 android16-6.12 3f3a5c5e782d 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/17 17:01 android16-6.12 3f3a5c5e782d 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/17 16:08 android16-6.12 3f3a5c5e782d 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/17 11:59 android16-6.12 3f3a5c5e782d 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/17 03:44 android16-6.12 3f3a5c5e782d 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/16 23:48 android16-6.12 3f3a5c5e782d 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/16 22:11 android16-6.12 3f3a5c5e782d 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/16 17:11 android16-6.12 3f3a5c5e782d 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/15 18:51 android16-6.12 830a2dadaa8f 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/14 17:39 android16-6.12 125206b4d7d6 5d8c2ac2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/12 05:35 android16-6.12 b632dc2e1d79 c06e8995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/12 04:14 android16-6.12 b632dc2e1d79 c06e8995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/11 21:21 android16-6.12 b632dc2e1d79 c06e8995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/11 04:12 android16-6.12 c46482c03ae9 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/11 04:12 android16-6.12 c46482c03ae9 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/10 11:39 android16-6.12 d0c633175c04 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/07 06:04 android16-6.12 886d2f37b799 9a42d6b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/05 07:05 android16-6.12 1ccd114e35d8 f5bcc8dc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/08/03 23:33 android16-6.12 bf0fb8bb181b 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/07/21 09:49 android16-6.12 73009db42b37 7117feec .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
2025/07/20 13:41 android16-6.12 73009db42b37 7117feec .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in kvm_arch_vcpu_ioctl_run
* Struck through repros no longer work on HEAD.