------------[ cut here ]------------ WARNING: CPU: 1 PID: 8845 at block/bdev.c:845 blkdev_put+0x6ca/0x770 block/bdev.c:845 Modules linked in: CPU: 1 PID: 8845 Comm: syz-executor.5 Not tainted 6.2.0-syzkaller-13534-gb01fe98d34f3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:blkdev_put+0x6ca/0x770 block/bdev.c:845 Code: 48 8b 3c 24 e8 27 01 d9 fd e9 99 fa ff ff e8 fd 00 d9 fd e9 cf fb ff ff 4c 89 ff e8 f0 00 d9 fd e9 80 fd ff ff e8 c6 70 88 fd <0f> 0b e9 ef fc ff ff e8 fa 00 d9 fd e9 f3 fa ff ff 48 8b 3c 24 e8 RSP: 0018:ffffc900052cfd80 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88801d229340 RCX: 0000000000000000 RDX: ffff888022412180 RSI: ffffffff83fbaa1a RDI: 0000000000000005 RBP: ffff8881469ec000 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000000 R12: 00000000484a009d R13: ffff88801d229368 R14: ffff8881469ec460 R15: ffff88801d2297f8 FS: 000055555713a400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31224000 CR3: 0000000020ca3000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blkdev_close+0x68/0x80 block/fops.c:507 __fput+0x27c/0xa90 fs/file_table.c:321 task_work_run+0x16f/0x270 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f732a03dfab Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffe0f521cf0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f732a03dfab RDX: 00007f7329c006d0 RSI: ffffffffffffffff RDI: 0000000000000004 RBP: 00007f732a1ad980 R08: 0000000000000000 R09: 00007f7329c00000 R10: 00007f7329c006d8 R11: 0000000000000293 R12: 00000000000b4700 R13: 00007ffe0f521df0 R14: 00007f732a1abf80 R15: 0000000000000032