BTRFS info (device loop2): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
VFS: Busy inodes after unmount of loop2 (btrfs)
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kernel BUG at fs/super.c:650!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 5226 Comm: syz-executor.2 Not tainted 6.10.0-rc2-syzkaller-00269-g96e09b8f8166 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:generic_shutdown_super+0x31b/0x3d0 fs/super.c:650
Code: 28 48 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 aa 00 00 00 48 8b 55 00 48 8d b3 68 06 00 00 48 c7 c7 40 2c 3d 8b e8 86 5f 74 ff 90 <0f> 0b e8 5e c2 ef ff e9 2f fd ff ff e8 54 c2 ef ff e9 02 fd ff ff
RSP: 0018:ffffc900034f7d78 EFLAGS: 00010282
RAX: 000000000000002f RBX: ffff88804a12a000 RCX: ffffffff816e6959
RDX: 0000000000000000 RSI: ffffffff816ef6a6 RDI: 0000000000000005
RBP: ffffffff8e311900 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000001 R12: ffff88804a12a9c0
R13: ffff88804a12a780 R14: 0000000000000000 R15: ffff88802734de00
FS:  000055557b5a8480(0000) GS:ffff88806b100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff1f1b1de8 CR3: 0000000042068000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kill_anon_super+0x3a/0x60 fs/super.c:1226
 btrfs_kill_super+0x3b/0x50 fs/btrfs/super.c:2096
 deactivate_locked_super+0xbe/0x1a0 fs/super.c:473
 deactivate_super+0xde/0x100 fs/super.c:506
 cleanup_mnt+0x222/0x450 fs/namespace.c:1267
 task_work_run+0x14e/0x250 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x278/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3c07c7e217
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff1f1b2598 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3c07c7e217
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff1f1b2650
RBP: 00007fff1f1b2650 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff1f1b3710
R13: 00007f3c07cc8336 R14: 0000000000025324 R15: 000000000000000a
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:generic_shutdown_super+0x31b/0x3d0 fs/super.c:650
Code: 28 48 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 aa 00 00 00 48 8b 55 00 48 8d b3 68 06 00 00 48 c7 c7 40 2c 3d 8b e8 86 5f 74 ff 90 <0f> 0b e8 5e c2 ef ff e9 2f fd ff ff e8 54 c2 ef ff e9 02 fd ff ff
RSP: 0018:ffffc900034f7d78 EFLAGS: 00010282
RAX: 000000000000002f RBX: ffff88804a12a000 RCX: ffffffff816e6959
RDX: 0000000000000000 RSI: ffffffff816ef6a6 RDI: 0000000000000005
RBP: ffffffff8e311900 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000001 R12: ffff88804a12a9c0
R13: ffff88804a12a780 R14: 0000000000000000 R15: ffff88802734de00
FS:  000055557b5a8480(0000) GS:ffff88806b100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff1f1b1de8 CR3: 0000000042068000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400