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AFNElJ/FZIn4Mbdcw+sYi7/GUb/vvemLBrybqRJi7fHZVkbdTzE9UYW+ImD6qyEWHwU84qLNPIg=@vger.kernel.org X-Gm-Message-State: AOJu0Yytx3i3fTRU9YJni0Bd5gqDXoyyeo/l+iT1rZ/Z5auRbkNEfaBs JTGp/6dvl0qRvsC7SbWmAqMSdktyyZBOYUWFilVVZ5Qq77Ba8hNtF1+gvVyP1Aj6PKyegYBmFo7 u37datlAwZIzTJN8nS4yrKL2qspxg1Q0+JcbeYEmN2bCedzCpFbxL51KMVks= Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:1c09:b0:468:6a2:897 with SMTP id 5614622812f47-4896a9b5286mr5470331b6e.6.1781927903105; Fri, 19 Jun 2026 20:58:23 -0700 (PDT) Date: Fri, 19 Jun 2026 20:58:23 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a360fdf.871e809a.2d6dda.0000.GAE@google.com> Subject: [syzbot] [kvm-x86?] WARNING in vcpu_run (2) From: syzbot To: bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, pbonzini@redhat.com, seanjc@google.com, syzkaller-bugs@googlegroups.com, tglx@kernel.org, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 8c13415c8a43 Merge tag 'media/v7.2-1' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12ec001c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d4e6991ab3edc95e dashboard link: https://syzkaller.appspot.com/bug?extid=dd769db18693736eee89 compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=157ce8ea580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1176e566580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/27752fb81380/disk-8c13415c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/192b476e0df1/vmlinux-8c13415c.xz kernel image: https://storage.googleapis.com/syzbot-assets/ba635e3d5aec/bzImage-8c13415c.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+dd769db18693736eee89@syzkaller.appspotmail.com ------------[ cut here ]------------ irq == -1 WARNING: arch/x86/kvm/x86.c:10860 at kvm_check_and_inject_events arch/x86/kvm/x86.c:10860 [inline], CPU#0: syz.4.1716/11103 WARNING: arch/x86/kvm/x86.c:10860 at vcpu_enter_guest arch/x86/kvm/x86.c:11356 [inline], CPU#0: syz.4.1716/11103 WARNING: arch/x86/kvm/x86.c:10860 at vcpu_run+0x57ec/0x7950 arch/x86/kvm/x86.c:11770, CPU#0: syz.4.1716/11103 Modules linked in: CPU: 0 UID: 0 PID: 11103 Comm: syz.4.1716 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:kvm_check_and_inject_events arch/x86/kvm/x86.c:10860 [inline] RIP: 0010:vcpu_enter_guest arch/x86/kvm/x86.c:11356 [inline] RIP: 0010:vcpu_run+0x57ec/0x7950 arch/x86/kvm/x86.c:11770 Code: b5 ff ff 89 d1 80 e1 07 38 c1 0f 8c 64 b1 ff ff 48 8b 7c 24 58 e8 a4 66 eb 00 48 8b 54 24 58 e9 50 b1 ff ff e8 b5 47 7e 00 90 <0f> 0b 90 4c 8b 64 24 10 e9 4c e7 ff ff e8 a2 47 7e 00 90 0f 0b 90 RSP: 0018:ffffc90006e375e0 EFLAGS: 00010293 RAX: ffffffff8147d98b RBX: ffff88805b402cc0 RCX: ffff88807bca5d00 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 00000000ffffffff RBP: ffffc90006e379b0 R08: ffff88805b402c57 R09: 1ffff1100b68058a R10: dffffc0000000000 R11: ffffed100b68058b R12: 00000000ffffffff R13: ffff88805b402ca0 R14: 0000000000000001 R15: dffffc0000000000 FS: 0000555579916500(0000) GS:ffff88812525d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1c74672780 CR3: 0000000075b22000 CR4: 00000000003526f0 Call Trace: kvm_arch_vcpu_ioctl_run+0x1193/0x2070 arch/x86/kvm/x86.c:12125 kvm_vcpu_ioctl+0xa61/0xfd0 virt/kvm/kvm_main.c:4470 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1c7479ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdeb74dbf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f1c74a15fa0 RCX: 00007f1c7479ce59 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 RBP: 00007f1c74832e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1c74a15fac R14: 00007f1c74a15fa0 R15: 00007f1c74a15fa0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup