============================================
WARNING: possible recursive locking detected
4.19.211-syzkaller #0 Not tainted
--------------------------------------------
syz-executor.3/31852 is trying to acquire lock:
00000000c7805941 (&team->lock){+.+.}, at: team_vlan_rx_add_vid+0x38/0x1e0 drivers/net/team/team.c:1896

but task is already holding lock:
00000000547f7aed (&team->lock){+.+.}, at: team_add_slave+0x98/0x1fa0 drivers/net/team/team.c:1975

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&team->lock);
  lock(&team->lock);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

2 locks held by syz-executor.3/31852:
 #0: 0000000094151182 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline]
 #0: 0000000094151182 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779
 #1: 00000000547f7aed (&team->lock){+.+.}, at: team_add_slave+0x98/0x1fa0 drivers/net/team/team.c:1975

stack backtrace:
CPU: 1 PID: 31852 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_deadlock_bug kernel/locking/lockdep.c:1764 [inline]
 check_deadlock kernel/locking/lockdep.c:1808 [inline]
 validate_chain kernel/locking/lockdep.c:2404 [inline]
 __lock_acquire.cold+0x121/0x57e 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
 team_vlan_rx_add_vid+0x38/0x1e0 drivers/net/team/team.c:1896
 vlan_add_rx_filter_info+0x13c/0x1c0 net/8021q/vlan_core.c:210
 __vlan_vid_add net/8021q/vlan_core.c:278 [inline]
 vlan_vid_add+0x3ee/0x7e0 net/8021q/vlan_core.c:308
 vlan_device_event.cold+0x28/0x2d net/8021q/vlan.c:382
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:93
 call_netdevice_notifiers net/core/dev.c:1762 [inline]
 dev_open net/core/dev.c:1442 [inline]
 dev_open+0x128/0x140 net/core/dev.c:1430
 team_port_add drivers/net/team/team.c:1220 [inline]
 team_add_slave+0xb02/0x1fa0 drivers/net/team/team.c:1976
 do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2321
 do_setlink+0x7ec/0x3540 net/core/rtnetlink.c:2455
 rtnl_newlink+0xda9/0x15c0 net/core/rtnetlink.c:3077
 rtnetlink_rcv_msg+0x453/0xb80 net/core/rtnetlink.c:4782
 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463
 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351
 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
 __sys_sendmsg net/socket.c:2265 [inline]
 __do_sys_sendmsg net/socket.c:2274 [inline]
 __se_sys_sendmsg net/socket.c:2272 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f339dcf1409
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f339c645168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f339de04050 RCX: 00007f339dcf1409
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
RBP: 00007f339dd4c367 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeb76df9bf R14: 00007f339c645300 R15: 0000000000022000
device team0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
team1: Port device team0 added
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents
gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
gfs2: fsid=syz:syz.0: jid=0: Done
gfs2: fsid=syz:syz.0: first mount done, others may mount
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents
gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
gfs2: fsid=syz:syz.0: jid=0: Done
gfs2: fsid=syz:syz.0: first mount done, others may mount
autofs4:pid:31964:autofs_fill_super: called with bogus options
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS...
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents
gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
gfs2: fsid=syz:syz.0: jid=0: Done
gfs2: fsid=syz:syz.0: first mount done, others may mount
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
CPU: 1 PID: 32029 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
 sysfs_create_dir_ns+0x228/0x280 fs/sysfs/dir.c:63
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal+0x2a5/0x9c0 lib/kobject.c:247
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:453
 gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7ffbd5c5693a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007ffbd45c9f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007ffbd5c5693a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffbd45c9fe0
RBP: 00007ffbd45ca020 R08: 00007ffbd45ca020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007ffbd45c9fe0 R15: 0000000020047a20
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
gfs2: fsid=syz:syz: error -17 adding sysfs files
autofs4:pid:32088:autofs_fill_super: called with bogus options
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS...
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
CPU: 1 PID: 32096 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
 sysfs_create_dir_ns+0x228/0x280 fs/sysfs/dir.c:63
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal+0x2a5/0x9c0 lib/kobject.c:247
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:453
 gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7ffbd5c5693a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents
RSP: 002b:00007ffbd45c9f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007ffbd5c5693a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffbd45c9fe0
RBP: 00007ffbd45ca020 R08: 00007ffbd45ca020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007ffbd45c9fe0 R15: 0000000020047a20
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
gfs2: fsid=syz:syz.0: jid=0: Done
gfs2: fsid=syz:syz.0: first mount done, others may mount
gfs2: fsid=syz:syz: error -17 adding sysfs files
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents
gfs2: fsid=syz:syz.0: jid=0, already locked for use
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
CPU: 0 PID: 32186 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
 sysfs_create_dir_ns+0x228/0x280 fs/sysfs/dir.c:63
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal+0x2a5/0x9c0 lib/kobject.c:247
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:453
 gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7ffbd5c5693a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007ffbd45c9f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007ffbd5c5693a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffbd45c9fe0
RBP: 00007ffbd45ca020 R08: 00007ffbd45ca020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007ffbd45c9fe0 R15: 0000000020047a20
gfs2: fsid=syz:syz.0: jid=0: Done
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
gfs2: fsid=syz:syz.0: first mount done, others may mount
gfs2: fsid=syz:syz: error -17 adding sysfs files
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based  firewall rule not found. Use the iptables CT target to attach helpers instead.

**********************************************************
**   NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE   **
**                                                      **
** trace_printk() being used. Allocating extra memory.  **
**                                                      **
** This means that this is a DEBUG kernel and it is     **
** unsafe for production use.                           **
**                                                      **
** If you see this message and you are not debugging    **
** the kernel, report this immediately to your vendor!  **
**                                                      **
**   NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE   **
**********************************************************
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents
gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
CPU: 1 PID: 32294 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
gfs2: fsid=syz:syz.0: jid=0: Done
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
 sysfs_create_dir_ns+0x228/0x280 fs/sysfs/dir.c:63
gfs2: fsid=syz:syz.0: first mount done, others may mount
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal+0x2a5/0x9c0 lib/kobject.c:247
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:453
 gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fc4cf3ba93a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007fc4cdd2df88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fc4cf3ba93a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc4cdd2dfe0
RBP: 00007fc4cdd2e020 R08: 00007fc4cdd2e020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fc4cdd2dfe0 R15: 0000000020047a20
CPU: 0 PID: 32286 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
 sysfs_create_dir_ns+0x228/0x280 fs/sysfs/dir.c:63
gfs2: fsid=syz:syz: error -17 adding sysfs files
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal+0x2a5/0x9c0 lib/kobject.c:247
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:453
 gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fa8a81e093a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007fa8a6b53f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fa8a81e093a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fa8a6b53fe0
RBP: 00007fa8a6b54020 R08: 00007fa8a6b54020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fa8a6b53fe0 R15: 0000000020047a20
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
gfs2: fsid=syz:syz: error -17 adding sysfs files
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents
gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
CPU: 1 PID: 32341 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
 sysfs_create_dir_ns+0x228/0x280 fs/sysfs/dir.c:63
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal+0x2a5/0x9c0 lib/kobject.c:247
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:453
 gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7ffbd5c5693a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007ffbd45c9f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007ffbd5c5693a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffbd45c9fe0
RBP: 00007ffbd45ca020 R08: 00007ffbd45ca020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007ffbd45c9fe0 R15: 0000000020047a20
gfs2: fsid=syz:syz.0: jid=0: Done
gfs2: fsid=syz:syz.0: first mount done, others may mount
gfs2: fsid=syz:syz.0: can't start logd thread: -4
gfs2: fsid=syz:syz.0: can't make FS RW: -4
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
CPU: 0 PID: 32372 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
tmpfs: No value for mount option 'smaps'
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
 sysfs_create_dir_ns+0x228/0x280 fs/sysfs/dir.c:63
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal+0x2a5/0x9c0 lib/kobject.c:247
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:453
 gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fa8a81e093a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007fa8a6b53f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fa8a81e093a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fa8a6b53fe0
RBP: 00007fa8a6b54020 R08: 00007fa8a6b54020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fa8a6b53fe0 R15: 0000000020047a20
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
gfs2: fsid=syz:syz: error -17 adding sysfs files
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
gfs2: fsid=syz:syz: error -17 adding sysfs files
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
CPU: 0 PID: 32426 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
gfs2: fsid=syz:syz.0: jid=0: Done
 sysfs_create_dir_ns+0x228/0x280 fs/sysfs/dir.c:63
gfs2: fsid=syz:syz.0: first mount done, others may mount
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal+0x2a5/0x9c0 lib/kobject.c:247
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:453
 gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7ffbd5c5693a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007ffbd45c9f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007ffbd5c5693a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffbd45c9fe0
RBP: 00007ffbd45ca020 R08: 00007ffbd45ca020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007ffbd45c9fe0 R15: 0000000020047a20
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
gfs2: fsid=syz:syz: error -17 adding sysfs files
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
CPU: 0 PID: 32434 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
 sysfs_create_dir_ns+0x228/0x280 fs/sysfs/dir.c:63
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal+0x2a5/0x9c0 lib/kobject.c:247
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:453
 gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fc4cf3ba93a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007fc4cdd2df88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fc4cf3ba93a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc4cdd2dfe0
RBP: 00007fc4cdd2e020 R08: 00007fc4cdd2e020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fc4cdd2dfe0 R15: 0000000020047a20
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents
gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
gfs2: fsid=syz:syz.0: jid=0: Done
gfs2: fsid=syz:syz.0: first mount done, others may mount
gfs2: fsid=syz:syz.0: fatal: invalid metadata block
  bh = 2341 (magic number)
  function = gfs2_meta_indirect_buffer, file = fs/gfs2/meta_io.c, line = 419
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
gfs2: fsid=syz:syz: error -17 adding sysfs files
gfs2: fsid=syz:syz.0: about to withdraw this file system
gfs2: fsid=syz:syz.0: withdrawn
CPU: 0 PID: 32488 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 gfs2_lm_withdraw.cold+0x1f8/0x24c fs/gfs2/util.c:75
 gfs2_meta_check_ii+0x60/0x90 fs/gfs2/util.c:204
 gfs2_metatype_check_i fs/gfs2/util.h:111 [inline]
 gfs2_meta_indirect_buffer+0x344/0x400 fs/gfs2/meta_io.c:419
 gfs2_meta_inode_buffer fs/gfs2/meta_io.h:73 [inline]
 gfs2_inode_refresh+0x95/0xde0 fs/gfs2/glops.c:412
 inode_go_lock+0x234/0x4a0 fs/gfs2/glops.c:442
 do_promote+0x46f/0xd80 fs/gfs2/glock.c:362
 finish_xmote+0x478/0xda0 fs/gfs2/glock.c:522
 do_xmote+0x538/0x670 fs/gfs2/glock.c:590
 run_queue+0x24f/0x580 fs/gfs2/glock.c:655
 gfs2_glock_nq+0x9ee/0x1360 fs/gfs2/glock.c:1114
 gfs2_glock_nq_init fs/gfs2/glock.h:228 [inline]
 gfs2_permission+0x210/0x3b0 fs/gfs2/inode.c:1797
 do_inode_permission fs/namei.c:386 [inline]
 inode_permission.part.0+0x276/0x450 fs/namei.c:451
 inode_permission+0x35/0x140 fs/namei.c:406
 may_open+0x1e6/0x360 fs/namei.c:2974
 do_last fs/namei.c:3417 [inline]
 path_openat+0x70f/0x2df0 fs/namei.c:3537
 do_filp_open+0x18c/0x3f0 fs/namei.c:3567
 do_sys_open+0x3b3/0x520 fs/open.c:1085
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7ffbd5c08324
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007ffbd45c9f10 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007ffbd5c08324
RDX: 0000000000010000 RSI: 0000000020000100 RDI: 00000000ffffff9c
RBP: 0000000020000100 R08: 0000000000000000 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000010000
R13: 0000000020000100 R14: 00007ffbd45c9fe0 R15: 0000000020047a20
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
CPU: 1 PID: 32534 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
 sysfs_create_dir_ns+0x228/0x280 fs/sysfs/dir.c:63
gfs2: fsid=syz:syz: Now mounting FS...
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal+0x2a5/0x9c0 lib/kobject.c:247
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:453
 gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
gfs2: fsid=syz:syz.0: jid=0: Done
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
gfs2: fsid=syz:syz.0: first mount done, others may mount
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fa8a81e093a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007fa8a6b53f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fa8a81e093a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fa8a6b53fe0
RBP: 00007fa8a6b54020 R08: 00007fa8a6b54020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fa8a6b53fe0 R15: 0000000020047a20
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
gfs2: fsid=syz:syz: error -17 adding sysfs files