linux-kernel - [syzbot] [kvm?] WARNING in vmx_handle

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Message-ID: <67598fb9.050a0220.17f54a.003b.GAE@google.com>
Date: Wed, 11 Dec 2024 05:12:25 -0800
From: syzbot <syzbot+ac0bc3a70282b4d586cc@...kaller.appspotmail.com>
To: bp@...en8.de, dave.hansen@...ux.intel.com, hpa@...or.com, 
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org, mingo@...hat.com, 
	pbonzini@...hat.com, seanjc@...gle.com, syzkaller-bugs@...glegroups.com, 
	tglx@...utronix.de, x86@...nel.org
Subject: [syzbot] [kvm?] WARNING in vmx_handle_exit (2)

Hello,

syzbot found the following issue on:

HEAD commit:    b5f217084ab3 Merge tag 'bpf-fixes' of git://git.kernel.org..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1226b330580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=9d99f0bff41614d0
dashboard link: https://syzkaller.appspot.com/bug?extid=ac0bc3a70282b4d586cc
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17d10820580000

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-b5f21708.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/4a2037d50b27/vmlinux-b5f21708.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e9e9c9c88191/bzImage-b5f21708.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ac0bc3a70282b4d586cc@...kaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 3 PID: 6336 at arch/x86/kvm/vmx/vmx.c:6480 __vmx_handle_exit arch/x86/kvm/vmx/vmx.c:6480 [inline]
WARNING: CPU: 3 PID: 6336 at arch/x86/kvm/vmx/vmx.c:6480 vmx_handle_exit+0x40f/0x1f70 arch/x86/kvm/vmx/vmx.c:6637
Modules linked in:
CPU: 3 UID: 0 PID: 6336 Comm: syz.0.73 Not tainted 6.13.0-rc1-syzkaller-00316-gb5f217084ab3 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__vmx_handle_exit arch/x86/kvm/vmx/vmx.c:6480 [inline]
RIP: 0010:vmx_handle_exit+0x40f/0x1f70 arch/x86/kvm/vmx/vmx.c:6637
Code: 07 38 d0 7f 08 84 c0 0f 85 b1 11 00 00 44 0f b6 a5 49 99 00 00 31 ff 44 89 e6 e8 8c 73 68 00 45 84 e4 75 52 e8 a2 71 68 00 90 <0f> 0b 90 48 8d bd 4a 99 00 00 c6 85 49 99 00 00 01 48 b8 00 00 00
RSP: 0018:ffffc90003a57a58 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803fa10000 RCX: ffffffff81319494
RDX: ffff888021152440 RSI: ffffffff8131949e RDI: 0000000000000001
RBP: ffffc900066bf000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000080000021 R14: ffff88803fa102d8 R15: dffffc0000000000
FS:  00007f5d3ac1e6c0(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000001200e000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vcpu_enter_guest arch/x86/kvm/x86.c:11081 [inline]
 vcpu_run+0x3047/0x4f50 arch/x86/kvm/x86.c:11242
 kvm_arch_vcpu_ioctl_run+0x44a/0x1740 arch/x86/kvm/x86.c:11560
 kvm_vcpu_ioctl+0x6ce/0x1520 virt/kvm/kvm_main.c:4340
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5d39d7fed9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5d3ac1e058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f5d39f46080 RCX: 00007f5d39d7fed9
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 00007f5d39df3cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5d39f46080 R15: 00007ffdd579bc48
 </TASK>


---
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