linux-kernel - WARNING in kvm_vcpu

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Message-ID: <CALcu4rY9qc-bhYnpNYwyVtcn3-6+YQ=Z4GUSXuP1vFtQtiY65A@mail.gmail.com>
Date:   Tue, 15 Aug 2023 11:52:50 +0800
From:   Yikebaer Aizezi <yikebaer61@...il.com>
To:     linux-kernel@...r.kernel.org, dave.hansen@...ux.intel.com,
        bp@...en8.de, hpa@...or.com, kvm@...r.kernel.org, mingo@...hat.com,
        pbonzini@...hat.com, Sean Christopherson <seanjc@...gle.com>,
        tglx@...utronix.de, x86@...nel.org
Subject: WARNING in kvm_vcpu_reset

Hello,

When using Healer to fuzz the Latest Linux-6.5-rc6,  the following crash
was triggered.

HEAD commit: 2ccdd1b13c591d306f0401d98dedc4bdcd02b421 (tag: v6.5-rc6）
git tree: upstream

console output:
https://drive.google.com/file/d/1Ccnfmov-_93xUAySMZSzVcoh48Aca3l7/view?usp=drive_link
kernel config:https://drive.google.com/file/d/17hBWtOF3u_m7QNnAglE4GRL-sjI0YfQH/view?usp=drive_link
C reproducer:https://drive.google.com/file/d/1Qji71sIPoWM1_tjYFN59y-TNHXNtSY8K/view?usp=drive_link
Syzlang reproducer:
https://drive.google.com/file/d/1_jSavSvc5zHbe8lW8Oo6OXK4Aj5ijcec/view?usp=drive_link


If you fix this issue, please add the following tag to the commit:
Reported-by: Yikebaer Aizezi <yikebaer61@...il.com>

--------------------------------------------------------------cut
here----------------------------------------------------------------------------------

WARNING: CPU: 0 PID: 20692 at arch/x86/kvm/x86.c:12023
kvm_vcpu_reset+0x1d6/0x1410 arch/x86/kvm/x86.c:12023
Modules linked in:
CPU: 0 PID: 20692 Comm: syz-executor Not tainted 6.5.0-rc6 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010:kvm_vcpu_reset+0x1d6/0x1410 arch/x86/kvm/x86.c:12023
Code: 8e 7a 11 00 00 8b 9d 98 02 00 00 31 ff 41 89 df 41 83 e7 01 44
89 fe e8 f8 6e 6f 00 45 84 ff 0f 84 a8 09 00 00 e8 ea 72 6f 00 <0f> 0b
e8 e3 72 6f 00 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc9000342fa10 EFLAGS: 00010216
RAX: 00000000000037c6 RBX: 0000000000000002 RCX: ffffc90002b59000
RDX: 0000000000040000 RSI: ffffffff8110f806 RDI: 0000000000000005
RBP: ffff8881130dc3b0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: ffff8881130dc648
R13: 0000000000000001 R14: ffff8881130dc5f8 R15: 0000000000000000
FS:  00007f6d890e4640(0000) GS:ffff888063c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000112b8d000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
 <TASK>
 shutdown_interception+0x66/0xb0 arch/x86/kvm/svm/svm.c:2148
 svm_invoke_exit_handler+0x79/0x3e0 arch/x86/kvm/svm/svm.c:3390
 svm_handle_exit+0x3a8/0x7c0 arch/x86/kvm/svm/svm.c:3450
 vcpu_enter_guest arch/x86/kvm/x86.c:10868 [inline]
 vcpu_run+0x2b98/0x4df0 arch/x86/kvm/x86.c:10971
 kvm_arch_vcpu_ioctl_run+0x4db/0x1a80 arch/x86/kvm/x86.c:11192
 kvm_vcpu_ioctl+0x56c/0xf40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4124
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x199/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6d87e9442d
Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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 b4 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6d890e4048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6d87fcc0a0 RCX: 00007f6d87e9442d
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007
RBP: 00007f6d87f014b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6d87f00b51
R13: 000000000000000b R14: 00007f6d87fcc0a0 R15: 00007f6d890c4000
 </TASK>

Modules linked in:
CPU: 0 PID: 20692 Comm: syz-executor Not tainted 6.5.0-rc6 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010:kvm_vcpu_reset+0x1d6/0x1410 arch/x86/kvm/x86.c:12023
Code: 8e 7a 11 00 00 8b 9d 98 02 00 00 31 ff 41 89 df 41 83 e7 01 44
89 fe e8 f8 6e 6f 00 45 84 ff 0f 84 a8 09 00 00 e8 ea 72 6f 00 <0f> 0b
e8 e3 72 6f 00 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc9000342fa10 EFLAGS: 00010216
RAX: 00000000000037c6 RBX: 0000000000000002 RCX: ffffc90002b59000
RDX: 0000000000040000 RSI: ffffffff8110f806 RDI: 0000000000000005
RBP: ffff8881130dc3b0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: ffff8881130dc648
R13: 0000000000000001 R14: ffff8881130dc5f8 R15: 0000000000000000
FS:  00007f6d890e4640(0000) GS:ffff888063c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000112b8d000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
 <TASK>
 shutdown_interception+0x66/0xb0 arch/x86/kvm/svm/svm.c:2148
 svm_invoke_exit_handler+0x79/0x3e0 arch/x86/kvm/svm/svm.c:3390
 svm_handle_exit+0x3a8/0x7c0 arch/x86/kvm/svm/svm.c:3450
 vcpu_enter_guest arch/x86/kvm/x86.c:10868 [inline]
 vcpu_run+0x2b98/0x4df0 arch/x86/kvm/x86.c:10971
 kvm_arch_vcpu_ioctl_run+0x4db/0x1a80 arch/x86/kvm/x86.c:11192
 kvm_vcpu_ioctl+0x56c/0xf40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4124
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x199/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6d87e9442d
Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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 b4 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6d890e4048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6d87fcc0a0 RCX: 00007f6d87e9442d
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007
RBP: 00007f6d87f014b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6d87f00b51
R13: 000000000000000b R14: 00007f6d87fcc0a0 R15: 00007f6d890c4000
 </TASK>
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 PID: 20692 Comm: syz-executor Not tainted 6.5.0-rc6 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd5/0x150 lib/dump_stack.c:106
 panic+0x67e/0x730 kernel/panic.c:340
 check_panic_on_warn+0xad/0xb0 kernel/panic.c:236
 __warn+0xee/0x390 kernel/panic.c:673
 __report_bug lib/bug.c:199 [inline]
 report_bug+0x2d9/0x500 lib/bug.c:219
 handle_bug+0x3c/0x70 arch/x86/kernel/traps.c:326
 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:347
 asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:568
RIP: 0010:kvm_vcpu_reset+0x1d6/0x1410 arch/x86/kvm/x86.c:12023
Code: 8e 7a 11 00 00 8b 9d 98 02 00 00 31 ff 41 89 df 41 83 e7 01 44
89 fe e8 f8 6e 6f 00 45 84 ff 0f 84 a8 09 00 00 e8 ea 72 6f 00 <0f> 0b
e8 e3 72 6f 00 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc9000342fa10 EFLAGS: 00010216
RAX: 00000000000037c6 RBX: 0000000000000002 RCX: ffffc90002b59000
RDX: 0000000000040000 RSI: ffffffff8110f806 RDI: 0000000000000005
RBP: ffff8881130dc3b0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: ffff8881130dc648
R13: 0000000000000001 R14: ffff8881130dc5f8 R15: 0000000000000000
 shutdown_interception+0x66/0xb0 arch/x86/kvm/svm/svm.c:2148
 svm_invoke_exit_handler+0x79/0x3e0 arch/x86/kvm/svm/svm.c:3390
 svm_handle_exit+0x3a8/0x7c0 arch/x86/kvm/svm/svm.c:3450
 vcpu_enter_guest arch/x86/kvm/x86.c:10868 [inline]
 vcpu_run+0x2b98/0x4df0 arch/x86/kvm/x86.c:10971
 kvm_arch_vcpu_ioctl_run+0x4db/0x1a80 arch/x86/kvm/x86.c:11192
 kvm_vcpu_ioctl+0x56c/0xf40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4124
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x199/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6d87e9442d
Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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 b4 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6d890e4048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6d87fcc0a0 RCX: 00007f6d87e9442d
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007
RBP: 00007f6d87f014b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6d87f00b51
R13: 000000000000000b R14: 00007f6d87fcc0a0 R15: 00007f6d890c4000
 </TASK>
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 1 seconds..