[syzbot] [kvm?] WARNING in kvm_put_kvm (3)

[syzbot] [kvm?] WARNING in kvm_put_kvm (3)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    6b8c8af514d7 Add linux-next specific files for 20260807
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=14548079580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=6d343b54cc50df0f
dashboard link: https://syzkaller.appspot.com/bug?extid=d4faf7db59e11f6fd1ab
compiler:       Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1528e132580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/71ff4edcb608/disk-6b8c8af5.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1f5fa331d8f2/vmlinux-6b8c8af5.xz
kernel image: https://storage.googleapis.com/syzbot-assets/f993558ec63b/bzImage-6b8c8af5.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d4faf7db59e11f6fd1ab@syzkaller.appspotmail.com

------------[ cut here ]------------
timer_delete_sync(&sdp->delay_work)
WARNING: kernel/rcu/srcutree.c:706 at cleanup_srcu_struct+0x3aa/0x890 kernel/rcu/srcutree.c:706, CPU#1: syz.1.1070/8126
Modules linked in:
CPU: 1 UID: 0 PID: 8126 Comm: syz.1.1070 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:cleanup_srcu_struct+0x3aa/0x890 kernel/rcu/srcutree.c:706
Code: b9 8a 00 48 83 7d 00 00 4c 8b 74 24 10 0f 85 dd 03 00 00 41 ff c5 41 83 e5 0f 41 83 fd 07 0f 86 0e ff ff ff e9 ab 00 00 00 90 <0f> 0b 90 4c 8d b5 00 02 00 00 4c 89 f3 48 c1 eb 03 48 b8 00 00 00
RSP: 0018:ffffc9000bbbfc50 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000607edad41c80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8e253559 RDI: 00000000ffffffff
RBP: ffffe8ffffc4dc80 R08: ffffffff9058fb7f R09: 1ffffffff20b1f6f
R10: dffffc0000000000 R11: fffffbfff20b1f70 R12: ffff88807bfa8000
R13: 0000000000000000 R14: ffffffff8e5237d0 R15: 1ffffffff1ca47de
FS:  000055557293c500(0000) GS:ffff88812500c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000071042000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 kvm_destroy_vm virt/kvm/kvm_main.c:1303 [inline]
 kvm_put_kvm+0x9cb/0xb50 virt/kvm/kvm_main.c:1332
 kvm_vm_release+0x43/0x50 virt/kvm/kvm_main.c:1355
 __fput+0x418/0xa50 fs/file_table.c:512
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:70 [inline]
 exit_to_user_mode_loop+0x22e/0x770 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:336 [inline]
 do_syscall_64+0x328/0x510 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f25cc99e0d9
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:00007ffed2b09948 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007ffed2b09a30 RCX: 00007f25cc99e0d9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000051665 R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b2d520000 R11: 0000000000000246 R12: 00007ffed2b09a70
R13: 00007f25ccc25fac R14: 00000000000516bf R15: 00007f25ccc25fa0
 </TASK>


---
This report is generated by a bot. It may contain errors.
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If the report is already addressed, let syzbot know by replying with:
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If you want syzbot to run the reproducer, reply with:
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If you want to overwrite report's subsystems, reply with:
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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

Forwarded: test for d4faf7db59e11f6fd1ab

[syzbot]

For archival purposes, forwarding an incoming command email to
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com.

***

Subject: test for d4faf7db59e11f6fd1ab
Author: shpark061104@gmail.com

#syz test: git://git.kernel.org/pub/scm/virt/kvm/kvm.git master

Forwarded: test patch for d4faf7db59e11f6fd1ab

[syzbot]

For archival purposes, forwarding an incoming command email to
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com.

***

Subject: test patch for d4faf7db59e11f6fd1ab
Author: shpark061104@gmail.com

#syz test: git://git.kernel.org/pub/scm/virt/kvm/kvm.git master

--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1297,6 +1297,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
                kvm_free_memslots(kvm, &kvm->__memslots[i][0]);
                kvm_free_memslots(kvm, &kvm->__memslots[i][1]);
        }
+        srcu_barrier(&kvm->irq_srcu);
        cleanup_srcu_struct(&kvm->irq_srcu);
        srcu_barrier(&kvm->srcu);
        cleanup_srcu_struct(&kvm->srcu);

Forwarded: test for d4faf7db59e11f6fd1ab

[syzbot]

For archival purposes, forwarding an incoming command email to
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com.

***

Subject: test for d4faf7db59e11f6fd1ab
Author: shpark061104@gmail.com

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
master

# https://syzkaller.appspot.com/bug?id=928e57747811470fbf24307d324a86e066ac2fe2
# See https://goo.gl/kgGztJ for information about syzkaller reproducers.
#{"repeat":true,"procs":5,"slowdown":1,"sandbox":"none","sandbox_arg":0,"tun":true,"netdev":true,"resetnet":true,"cgroups":true,"binfmt_misc":true,"close_fds":true,"usb":true,"vhci":true,"wifi":true,"ieee802154":true,"sysctl":true,"swap":true,"tmpdir":true,"segv":true,"callcomments":true}
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60)
ioctl$KVM_REGISTER_COALESCED_MMIO(r1, 0x4010ae67,
&(0x7f0000000040)={0xffff1000, 0x100000, 0xfffffffd})

Re: [syzbot] [kvm?] WARNING in kvm_put_kvm (3)

[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit:    50d05c7c76c9 Merge tag 'landlock-7.3-rc3' of git://git.ker..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1779e925580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5e4e3a0e188a497e
dashboard link: https://syzkaller.appspot.com/bug?extid=d4faf7db59e11f6fd1ab
compiler:       Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
userspace arch: i386
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14ef08c9580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10f9e925580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/daf497619736/disk-50d05c7c.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/748fbd82f647/vmlinux-50d05c7c.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e61c59099d07/bzImage-50d05c7c.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d4faf7db59e11f6fd1ab@syzkaller.appspotmail.com

------------[ cut here ]------------
timer_delete_sync(&sdp->delay_work) && rcu_segcblist_n_cbs(&sdp->srcu_cblist)
WARNING: kernel/rcu/srcutree.c:707 at cleanup_srcu_struct+0x3d6/0x8b0 kernel/rcu/srcutree.c:706, CPU#0: syz.0.4746/16077
Modules linked in:
CPU: 0 UID: 0 PID: 16077 Comm: syz.0.4746 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:cleanup_srcu_struct+0x3d6/0x8b0 kernel/rcu/srcutree.c:706
Code: fd 8b 00 48 83 7d 00 00 4c 8b 74 24 10 0f 85 dd 03 00 00 41 ff c5 41 83 e5 0f 41 83 fd 07 0f 86 e2 fe ff ff e9 ab 00 00 00 90 <0f> 0b 90 4c 8d b5 00 02 00 00 4c 89 f3 48 c1 eb 03 48 b8 00 00 00
RSP: 0018:ffffc90002e2fc10 EFLAGS: 00010206
RAX: 1ffffd1ffff8ff4d RBX: 0000607edafad980 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: ffffffff8e475f59 RDI: 00000000ffffffff
RBP: ffffe8ffffc7f980 R08: ffffffff907a2b7f R09: 1ffffffff20f456f
R10: dffffc0000000000 R11: fffffbfff20f4570 R12: ffff88802b081000
R13: 0000000000000000 R14: ffffe8ffffc7fa68 R15: 1ffffffff1ce91de
FS:  0000000000000000(0000) GS:ffff888124cd2000(0063) knlGS:0000000057310480
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000073e86000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 kvm_destroy_vm virt/kvm/kvm_main.c:1303 [inline]
 kvm_put_kvm+0x9cb/0xb50 virt/kvm/kvm_main.c:1332
 kvm_vm_release+0x43/0x50 virt/kvm/kvm_main.c:1355
 __fput+0x418/0xa50 fs/file_table.c:512
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:70 [inline]
 exit_to_user_mode_loop+0x204/0x770 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:336 [inline]
 __do_fast_syscall_32+0x437/0x6a0 arch/x86/entry/syscall_32.c:294
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7f470ec
Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8
RSP: 002b:00000000ffa0002c EFLAGS: 00000206 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 000000000000001e
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	85 d2                	test   %edx,%edx
   3:	74 0a                	je     0xf
   5:	89 ce                	mov    %ecx,%esi
   7:	81 e6 ff 0f 00 00    	and    $0xfff,%esi
   d:	89 32                	mov    %esi,(%rdx)
   f:	85 c0                	test   %eax,%eax
  11:	74 05                	je     0x18
  13:	c1 e9 0c             	shr    $0xc,%ecx
  16:	89 08                	mov    %ecx,(%rax)
  18:	31 c0                	xor    %eax,%eax
  1a:	5e                   	pop    %rsi
  1b:	5d                   	pop    %rbp
  1c:	c3                   	ret
  1d:	90                   	nop
  1e:	0f 1f 00             	nopl   (%rax)
  21:	51                   	push   %rcx
  22:	52                   	push   %rdx
  23:	55                   	push   %rbp
  24:	89 e5                	mov    %esp,%ebp
  26:	0f 34                	sysenter
  28:	cd 80                	int    $0x80
* 2a:	5d                   	pop    %rbp <-- trapping instruction
  2b:	5a                   	pop    %rdx
  2c:	59                   	pop    %rcx
  2d:	c3                   	ret
  2e:	90                   	nop
  2f:	90                   	nop
  30:	90                   	nop
  31:	90                   	nop
  32:	90                   	nop
  33:	90                   	nop
  34:	90                   	nop
  35:	90                   	nop
  36:	90                   	nop
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	58                   	pop    %rax
  3f:	b8                   	.byte 0xb8


---
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.

Re: [syzbot] [kvm?] WARNING in kvm_put_kvm (3)

[Zqiang]

> 
> syzbot has found a reproducer for the following issue on:
> 
> HEAD commit: 50d05c7c76c9 Merge tag 'landlock-7.3-rc3' of git://git.ker..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1779e925580000
> kernel config: https://syzkaller.appspot.com/x/.config?x=5e4e3a0e188a497e
> dashboard link: https://syzkaller.appspot.com/bug?extid=d4faf7db59e11f6fd1ab
> compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
> userspace arch: i386
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ef08c9580000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10f9e925580000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/daf497619736/disk-50d05c7c.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/748fbd82f647/vmlinux-50d05c7c.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/e61c59099d07/bzImage-50d05c7c.xz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+d4faf7db59e11f6fd1ab@syzkaller.appspotmail.com
> 
> ------------[ cut here ]------------
> timer_delete_sync(&sdp->delay_work) && rcu_segcblist_n_cbs(&sdp->srcu_cblist)
> WARNING: kernel/rcu/srcutree.c:707 at cleanup_srcu_struct+0x3d6/0x8b0 kernel/rcu/srcutree.c:706, CPU#0: syz.0.4746/16077

This should be fixed:
https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
91153bd0ee7f ("srcu: Fix WARN_ON() for rcu_segcblist_n_cbs() in cleanup_srcu_struct()")

Thanks
Zqiang



> Modules linked in:
> CPU: 0 UID: 0 PID: 16077 Comm: syz.0.4746 Not tainted syzkaller #0 PREEMPT(full) 
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
> RIP: 0010:cleanup_srcu_struct+0x3d6/0x8b0 kernel/rcu/srcutree.c:706
> Code: fd 8b 00 48 83 7d 00 00 4c 8b 74 24 10 0f 85 dd 03 00 00 41 ff c5 41 83 e5 0f 41 83 fd 07 0f 86 e2 fe ff ff e9 ab 00 00 00 90 <0f> 0b 90 4c 8d b5 00 02 00 00 4c 89 f3 48 c1 eb 03 48 b8 00 00 00
> RSP: 0018:ffffc90002e2fc10 EFLAGS: 00010206
> RAX: 1ffffd1ffff8ff4d RBX: 0000607edafad980 RCX: dffffc0000000000
> RDX: 0000000000000001 RSI: ffffffff8e475f59 RDI: 00000000ffffffff
> RBP: ffffe8ffffc7f980 R08: ffffffff907a2b7f R09: 1ffffffff20f456f
> R10: dffffc0000000000 R11: fffffbfff20f4570 R12: ffff88802b081000
> R13: 0000000000000000 R14: ffffe8ffffc7fa68 R15: 1ffffffff1ce91de
> FS: 0000000000000000(0000) GS:ffff888124cd2000(0063) knlGS:0000000057310480
> CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
> CR2: 0000000000000000 CR3: 0000000073e86000 CR4: 00000000003526f0
> Call Trace:
>  <TASK>
>  kvm_destroy_vm virt/kvm/kvm_main.c:1303 [inline]
>  kvm_put_kvm+0x9cb/0xb50 virt/kvm/kvm_main.c:1332
>  kvm_vm_release+0x43/0x50 virt/kvm/kvm_main.c:1355
>  __fput+0x418/0xa50 fs/file_table.c:512
>  task_work_run+0x1d9/0x270 kernel/task_work.c:233
>  resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
>  __exit_to_user_mode_loop kernel/entry/common.c:70 [inline]
>  exit_to_user_mode_loop+0x204/0x770 kernel/entry/common.c:101
>  __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
>  syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
>  syscall_exit_to_user_mode include/linux/entry-common.h:336 [inline]
>  __do_fast_syscall_32+0x437/0x6a0 arch/x86/entry/syscall_32.c:294
>  do_fast_syscall_32+0x33/0x70 arch/x86/entry/syscall_32.c:316
>  entry_SYSENTER_compat_after_hwframe+0x84/0x8e
> RIP: 0023:0xf7f470ec
> Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8
> RSP: 002b:00000000ffa0002c EFLAGS: 00000206 ORIG_RAX: 00000000000001b4
> RAX: 0000000000000000 RBX: 0000000000000003 RCX: 000000000000001e
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
> RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
> R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
>  </TASK>
> ----------------
> Code disassembly (best guess):
>  0: 90 nop
>  1: 85 d2 test %edx,%edx
>  3: 74 0a je 0xf
>  5: 89 ce mov %ecx,%esi
>  7: 81 e6 ff 0f 00 00 and $0xfff,%esi
>  d: 89 32 mov %esi,(%rdx)
>  f: 85 c0 test %eax,%eax
>  11: 74 05 je 0x18
>  13: c1 e9 0c shr $0xc,%ecx
>  16: 89 08 mov %ecx,(%rax)
>  18: 31 c0 xor %eax,%eax
>  1a: 5e pop %rsi
>  1b: 5d pop %rbp
>  1c: c3 ret
>  1d: 90 nop
>  1e: 0f 1f 00 nopl (%rax)
>  21: 51 push %rcx
>  22: 52 push %rdx
>  23: 55 push %rbp
>  24: 89 e5 mov %esp,%ebp
>  26: 0f 34 sysenter
>  28: cd 80 int $0x80
> * 2a: 5d pop %rbp <-- trapping instruction
>  2b: 5a pop %rdx
>  2c: 59 pop %rcx
>  2d: c3 ret
>  2e: 90 nop
>  2f: 90 nop
>  30: 90 nop
>  31: 90 nop
>  32: 90 nop
>  33: 90 nop
>  34: 90 nop
>  35: 90 nop
>  36: 90 nop
>  37: 90 nop
>  38: 90 nop
>  39: 90 nop
>  3a: 90 nop
>  3b: 90 nop
>  3c: 90 nop
>  3d: 90 nop
>  3e: 58 pop %rax
>  3f: b8 .byte 0xb8
> 
> ---
> 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.
>

Re: [syzbot] [kvm?] WARNING in kvm_put_kvm (3)

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+d4faf7db59e11f6fd1ab@syzkaller.appspotmail.com
Tested-by: syzbot+d4faf7db59e11f6fd1ab@syzkaller.appspotmail.com

Tested on:

commit:         903c1cf6 Add linux-next specific files for 20260821
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=101e1179580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=61cbaf6d30cb97db
dashboard link: https://syzkaller.appspot.com/bug?extid=d4faf7db59e11f6fd1ab
compiler:       Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.

Re: [syzbot] [kvm?] WARNING in kvm_put_kvm (3)

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+d4faf7db59e11f6fd1ab@syzkaller.appspotmail.com
Tested-by: syzbot+d4faf7db59e11f6fd1ab@syzkaller.appspotmail.com

Tested on:

commit:         8d3ae592 Linux 7.2
git tree:       git://git.kernel.org/pub/scm/virt/kvm/kvm.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=11bf6179580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=aaf0da806f995318
dashboard link: https://syzkaller.appspot.com/bug?extid=d4faf7db59e11f6fd1ab
compiler:       Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=14f60979580000

Note: testing is done by a robot and is best-effort only.

Re: [syzbot] [kvm?] WARNING in kvm_put_kvm (3)

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+d4faf7db59e11f6fd1ab@syzkaller.appspotmail.com
Tested-by: syzbot+d4faf7db59e11f6fd1ab@syzkaller.appspotmail.com

Tested on:

commit:         8d3ae592 Linux 7.2
git tree:       git://git.kernel.org/pub/scm/virt/kvm/kvm.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=123b4625580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=aaf0da806f995318
dashboard link: https://syzkaller.appspot.com/bug?extid=d4faf7db59e11f6fd1ab
compiler:       Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.