BTRFS info (device loop5): force zlib compression, level 3 BTRFS info (device loop5): using free space tree BTRFS info (device loop5): has skinny extents wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.5/8950 is trying to acquire lock: 00000000979395ed (&fs_info->qgroup_ioctl_lock){+.+.}, at: btrfs_qgroup_inherit+0xde/0x1c60 fs/btrfs/qgroup.c:2284 but task is already holding lock: 00000000a8411eb0 (sb_internal#4){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] 00000000a8411eb0 (sb_internal#4){.+.+}, at: start_transaction+0xa37/0xf90 fs/btrfs/transaction.c:528 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (sb_internal#4){.+.+}: sb_start_intwrite include/linux/fs.h:1626 [inline] start_transaction+0xa37/0xf90 fs/btrfs/transaction.c:528 btrfs_quota_enable+0x169/0x10b0 fs/btrfs/qgroup.c:905 btrfs_ioctl_quota_ctl fs/btrfs/ioctl.c:5233 [inline] btrfs_ioctl+0x622c/0x76d0 fs/btrfs/ioctl.c:6021 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&fs_info->qgroup_ioctl_lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:937 [inline] __mutex_lock+0xd7/0x1190 kernel/locking/mutex.c:1078 btrfs_qgroup_inherit+0xde/0x1c60 fs/btrfs/qgroup.c:2284 create_subvol+0x3aa/0x1850 fs/btrfs/ioctl.c:617 btrfs_mksubvol+0xe1d/0x1160 fs/btrfs/ioctl.c:1007 btrfs_ioctl_snap_create_transid+0x2a7/0x430 fs/btrfs/ioctl.c:1771 btrfs_ioctl_snap_create_v2+0x2db/0x5d0 fs/btrfs/ioctl.c:1885 btrfs_ioctl+0x26f6/0x76d0 fs/btrfs/ioctl.c:5934 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sb_internal#4); lock(&fs_info->qgroup_ioctl_lock); lock(sb_internal#4); lock(&fs_info->qgroup_ioctl_lock); *** DEADLOCK *** 4 locks held by syz-executor.5/8950: #0: 000000000c6f8a58 (sb_writers#23){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 000000000c6f8a58 (sb_writers#23){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 #1: 000000006b29bd81 (&type->i_mutex_dir_key#13/1){+.+.}, at: btrfs_mksubvol+0x156/0x1160 fs/btrfs/ioctl.c:975 #2: 0000000000b2309f (&fs_info->subvol_sem){++++}, at: btrfs_mksubvol+0x35b/0x1160 fs/btrfs/ioctl.c:998 #3: 00000000a8411eb0 (sb_internal#4){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #3: 00000000a8411eb0 (sb_internal#4){.+.+}, at: start_transaction+0xa37/0xf90 fs/btrfs/transaction.c:528 stack backtrace: CPU: 1 PID: 8950 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2420 [inline] __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __mutex_lock_common kernel/locking/mutex.c:937 [inline] __mutex_lock+0xd7/0x1190 kernel/locking/mutex.c:1078 btrfs_qgroup_inherit+0xde/0x1c60 fs/btrfs/qgroup.c:2284 create_subvol+0x3aa/0x1850 fs/btrfs/ioctl.c:617 btrfs_mksubvol+0xe1d/0x1160 fs/btrfs/ioctl.c:1007 btrfs_ioctl_snap_create_transid+0x2a7/0x430 fs/btrfs/ioctl.c:1771 btrfs_ioctl_snap_create_v2+0x2db/0x5d0 fs/btrfs/ioctl.c:1885 btrfs_ioctl+0x26f6/0x76d0 fs/btrfs/ioctl.c:5934 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f636321f0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6361791168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f636333ef80 RCX: 00007f636321f0c9 RDX: 0000000020001a80 RSI: 0000000050009418 RDI: 0000000000000004 RBP: 00007f636327aae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc077efb0f R14: 00007f6361791300 R15: 0000000000022000 UDF-fs: warning (device loop4): udf_fill_super: No fileset found BTRFS info (device loop5): enabling inode map caching BTRFS warning (device loop5): excessive commit interval 622039222 BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor.4 (9085) BTRFS info (device loop5): force zlib compression, level 3 BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (9112) BTRFS info (device loop5): using free space tree BTRFS info (device loop5): has skinny extents EXT4-fs (loop0): feature flags set on rev 0 fs, running e2fsck is recommended EXT4-fs (loop0): orphan cleanup on readonly fs Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0). EXT4-fs warning (device loop0): ext4_enable_quotas:5883: Failed to enable quota tracking (type=1, err=-117). Please run e2fsck to fix. EXT4-fs (loop0): Cannot turn on quotas: error -117 EXT4-fs error (device loop0): ext4_orphan_get:1232: inode #15: comm syz-executor.0: iget: bad i_size value: -4294967296 EXT4-fs error (device loop0): ext4_orphan_get:1235: comm syz-executor.0: couldn't read orphan inode 15 (err -117) EXT4-fs (loop0): mounted filesystem without journal. Opts: nodelalloc,nogrpid,,errors=continue BTRFS info (device loop4): enabling inode map caching BTRFS warning (device loop4): excessive commit interval 622039222 BTRFS info (device loop4): force zlib compression, level 3 BTRFS info (device loop4): using free space tree BTRFS info (device loop4): has skinny extents EXT4-fs (loop5): Ignoring removed nobh option EXT4-fs (loop5): Unsupported blocksize for fs encryption EXT4-fs (loop0): feature flags set on rev 0 fs, running e2fsck is recommended EXT4-fs (loop0): orphan cleanup on readonly fs Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0). EXT4-fs warning (device loop0): ext4_enable_quotas:5883: Failed to enable quota tracking (type=1, err=-117). Please run e2fsck to fix. EXT4-fs (loop0): Cannot turn on quotas: error -117 EXT4-fs error (device loop0): ext4_orphan_get:1232: inode #15: comm syz-executor.0: iget: bad i_size value: -4294967296 EXT4-fs error (device loop0): ext4_orphan_get:1235: comm syz-executor.0: couldn't read orphan inode 15 (err -117) EXT4-fs (loop0): mounted filesystem without journal. Opts: nodelalloc,nogrpid,,errors=continue EXT4-fs (loop0): feature flags set on rev 0 fs, running e2fsck is recommended EXT4-fs (loop0): orphan cleanup on readonly fs Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0). EXT4-fs warning (device loop0): ext4_enable_quotas:5883: Failed to enable quota tracking (type=1, err=-117). Please run e2fsck to fix. EXT4-fs (loop0): Cannot turn on quotas: error -117 EXT4-fs error (device loop0): ext4_orphan_get:1232: inode #15: comm syz-executor.0: iget: bad i_size value: -4294967296 EXT4-fs error (device loop0): ext4_orphan_get:1235: comm syz-executor.0: couldn't read orphan inode 15 (err -117) EXT4-fs (loop0): mounted filesystem without journal. Opts: nodelalloc,nogrpid,,errors=continue EXT4-fs (loop5): Ignoring removed nobh option EXT4-fs (loop5): Unsupported blocksize for fs encryption bridge0: port 3(team0) entered blocking state bridge0: port 3(team0) entered disabled state device team0 entered promiscuous mode device team_slave_0 entered promiscuous mode device team_slave_1 entered promiscuous mode bridge0: port 3(team0) entered blocking state bridge0: port 3(team0) entered forwarding state could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni could not allocate digest TFM handle ghash-clmulni