Hello, syzbot found the following issue on: HEAD commit: c5d9ae265b10 Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=132e687c700000 kernel config: https://syzkaller.appspot.com/x/.config?x=a78b064590b9f912 dashboard link: https://syzkaller.appspot.com/bug?extid=1e3ea63db39f2b4440e0 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1e3ea63db39f2b4440e0@xxxxxxxxxxxxxxxxxxxxxxxxx WARNING: CPU: 1 PID: 10828 at drivers/vhost/vhost.c:715 vhost_dev_cleanup+0x8b8/0xbc0 drivers/vhost/vhost.c:715 Modules linked in: CPU: 0 PID: 10828 Comm: syz-executor.0 Not tainted 5.17.0-rc4-syzkaller-00051-gc5d9ae265b10 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:vhost_dev_cleanup+0x8b8/0xbc0 drivers/vhost/vhost.c:715 Code: c7 85 90 01 00 00 00 00 00 00 e8 53 6e a2 fa 48 89 ef 48 83 c4 20 5b 5d 41 5c 41 5d 41 5e 41 5f e9 7d d6 ff ff e8 38 6e a2 fa <0f> 0b e9 46 ff ff ff 48 8b 7c 24 10 e8 87 00 ea fa e9 75 f7 ff ff RSP: 0018:ffffc9000fe6fa18 EFLAGS: 00010293 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff888021b63a00 RSI: ffffffff86d66fe8 RDI: ffff88801cc200b0 RBP: ffff88801cc20000 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817f1e08 R11: 0000000000000000 R12: ffff88801cc200d0 R13: ffff88801cc20120 R14: ffff88801cc200d0 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2de25000 CR3: 000000004c9cd000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> vhost_vsock_dev_release+0x36e/0x4b0 drivers/vhost/vsock.c:771 __fput+0x286/0x9f0 fs/file_table.c:313 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0xb29/0x2a30 kernel/exit.c:806 do_group_exit+0xd2/0x2f0 kernel/exit.c:935 get_signal+0x45a/0x2490 kernel/signal.c:2863 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f4027a46481 Code: Unable to access opcode bytes at RIP 0x7f4027a46457. RSP: 002b:00007f402808ba68 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: fffffffffffffffc RBX: 00007f402622e700 RCX: 00007f4027a46481 RDX: 00007f402622e9d0 RSI: 00007f402622e2f0 RDI: 00000000003d0f00 RBP: 00007f402808bcb0 R08: 00007f402622e700 R09: 00007f402622e700 R10: 00007f402622e9d0 R11: 0000000000000206 R12: 00007f402808bb1e R13: 00007f402808bb1f R14: 00007f402622e300 R15: 0000000000022000 </TASK> --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
