From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f200.google.com (mail-oi1-f200.google.com [209.85.167.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6B4F063B9 for ; Sun, 12 Jul 2026 04:57:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783832224; cv=none; b=TzU3TPA097I3IcEfZbF3edRUio0VAWhOpS5foTe9ufxhh7Vkmgusy3m1e5R0Hnw6izYQlbfgs56de2JoFsHJFAp3st3FkusGL3hiUXdjCsB2HnNJLP3gMa57JVCCP1q6erGjGAs1VyLEn5z1qSi6VHHk5/zyouHD4weh1JdAwwo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783832224; c=relaxed/simple; bh=jnxK3/RWBp1AOZcJ3hBtaMQt9xsNrbRf/DEsBjGpVlw=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=W4K0yT7VJ8XEmo1zTrVSsAcll40oyKNO3I75Rf7wmRBagQADFnpa1OPi2wsSwXYbgSU0Wt0H1ujgX6e0ET6SQ0VOy5h7iDQqsKrpbkKcoaydVGlI8myKzFdyTe0zvaKYPfDLDDGkQpSiCEd4kjRw5ii46Wne8sObdSJpp2C5wr0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.167.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oi1-f200.google.com with SMTP id 5614622812f47-4909b046dabso3263433b6e.0 for ; Sat, 11 Jul 2026 21:57:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783832222; x=1784437022; h=content-type:to:from:subject:message-id:in-reply-to:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to:content-type; bh=Uui/c/6fEVDgz9/O5cp4qtWC135y/wB89gSSvICZ1RI=; b=rOE4ZKoYuzFGnBDOeK7YP43UDtaoKVVH+OwPb3zpfF2VbKSGNSQY/yzfvfIAjAUALh jIjlFig93Uqhhi8+el7vjvHTEUZh9GaObF2mijq7S8wguC6iO8WfaAzoMdTu7LgRETEw NP5hWI+Xkz8UXJloB703vzCbmjtxRnV9FuMGYcKL6R7kLJb6rnkn69JgVec8LVA8+fQG 8s2nS0pK8vpiv3BdIfp9QIquqCxhCy7g+tEqrGQFzZOX9Ue9whhTyct9bbXiyqSUlIuH HYYStSTOi0TbS2jwo2j1t1kB7519eqv6ABqkEMHDPhcuiM8a2tP+hSIfe0t4dmsey1Dr i7oA== X-Forwarded-Encrypted: i=1; AFNElJ/KiCJ2uflfLqYS51+Nvs6NxN0QcZKrQMj0zrFYREXPhSlC6RG8u17Db59powD89cWBPQUGPu3pRY1Yi9o=@vger.kernel.org X-Gm-Message-State: AOJu0YwjHNX0e9DwjpSvwhTK7RzXVqBN4mw8oWMPKgqqC618iJq66Uak zQOX0HfdR2CCGiAxiCmsa8Dt8dyE7NpdSwjmahkRqvvqQQtbJcyB8xgRujACbDt2tE13g8D6LPM zwpnNEOyWAU9hvmT+pGi7Fr1h0l6cdGzGjOoYURFFcCr7RepfhBpAqUmdiUo= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:120e:b0:495:e1b6:2c5 with SMTP id 5614622812f47-4a42abf4b90mr3146440b6e.1.1783832222356; Sat, 11 Jul 2026 21:57:02 -0700 (PDT) Date: Sat, 11 Jul 2026 21:57:02 -0700 In-Reply-To: <20260712043621.31248-1-kartikey406@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a531e9e.278cdcd2.e885.0019.GAE@google.com> Subject: Re: [syzbot] [kvm-x86?] WARNING in kvm_check_and_inject_events From: syzbot To: kartikey406@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in kvm_check_and_inject_events KVM_DEBUG: has_extint called output=1 IRR0=03 IRR1=00 IMR0=06 IMR1=00 KVM_DEBUG: has_extint=FALSE returning -1! output=0 ------------[ cut here ]------------ irq == -1 WARNING: arch/x86/kvm/x86.c:10800 at kvm_check_and_inject_events+0xf1e/0x1070 arch/x86/kvm/x86.c:10800, CPU#3: syz.1.28/6425 Modules linked in: CPU: 3 UID: 0 PID: 6425 Comm: syz.1.28 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:kvm_check_and_inject_events+0xf1e/0x1070 arch/x86/kvm/x86.c:10800 Code: 00 48 8b 44 24 20 48 0d 00 01 01 00 48 89 44 24 10 e9 35 fd ff ff e8 a1 4e 7e 00 90 0f 0b 90 e9 b7 fe ff ff e8 93 4e 7e 00 90 <0f> 0b 90 e9 2e f8 ff ff e8 45 c8 ee 00 e9 ae f6 ff ff 48 8b 7c 24 RSP: 0018:ffffc900032e7a20 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888058cea9c0 RCX: ffffffff818b8bac RDX: ffff88802cef8000 RSI: ffffffff818b8ccd RDI: ffff88802cef8000 RBP: 00000000ffffffff R08: 0000000000000005 R09: 00000000ffffffff R10: 00000000ffffffff R11: 0000000000000000 R12: ffff888058ceb5ec R13: 0000000000000001 R14: ffff888058ceaca8 R15: ffff888058ceb2f8 FS: 00007efc7b1fe6c0(0000) GS:ffff8880d60e8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efc7b1dcff8 CR3: 0000000026a63000 CR4: 0000000000352ef0 Call Trace: vcpu_enter_guest arch/x86/kvm/x86.c:11296 [inline] vcpu_run+0xf1d/0x5d50 arch/x86/kvm/x86.c:11707 kvm_arch_vcpu_ioctl_run+0x5b6/0x1890 arch/x86/kvm/x86.c:12062 kvm_vcpu_ioctl+0x730/0x1700 virt/kvm/kvm_main.c:4470 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efc7bb9de59 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:00007efc7b1fe028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007efc7be25fa0 RCX: 00007efc7bb9de59 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 00007efc7bc33e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007efc7be26038 R14: 00007efc7be25fa0 R15: 00007fff3d01fdc8 Tested on: commit: 44696aa3 Merge tag 'input-for-v7.2-rc2' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17131b89580000 kernel config: https://syzkaller.appspot.com/x/.config?x=48ef5c5c0f192153 dashboard link: https://syzkaller.appspot.com/bug?extid=9dcd0a11dc9703a49511 compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 patch: https://syzkaller.appspot.com/x/patch.diff?x=1376a0b9580000