1d0
[  464.757227][ T7514]  ? do_recvmmsg+0x740/0x740
[  464.763331][ T7514]  ? find_held_lock+0x2d/0x110
[  464.768919][ T7514]  ? __fget_light+0xe6/0x260
[  464.773972][ T7514]  __sys_sendmsg+0x117/0x1e0
[  464.778924][ T7514]  ? __sys_sendmsg_sock+0x30/0x30
[  464.784223][ T7514]  ? xfd_validate_state+0x5d/0x180
[  464.789745][ T7514]  ? syscall_enter_from_user_mode+0x7f/0x120
[  464.796090][ T7514]  do_syscall_64+0x40/0x110
[  464.800694][ T7514]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  464.807299][ T7514] RIP: 0033:0x7fe607e7c899
[  464.812802][ T7514] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
[  464.833997][ T7514] RSP: 002b:00007fe608bdd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  464.846845][ T7514] RAX: ffffffffffffffda RBX: 00007fe607f9bf80 RCX: 00007fe607e7c899
[  464.855722][ T7514] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  464.864325][ T7514] RBP: 00007fe607ed8ad0 R08: 0000000000000000 R09: 0000000000000000
[  464.873385][ T7514] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  464.882164][ T7514] R13: 000000000000000b R14: 00007fe607f9bf80 R15: 00007ffe84ac3478
[  464.890768][ T7514]  </TASK>
[  464.896571][ T7514] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  464.964609][ T7514] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  464.973922][ T7514] CPU: 0 PID: 7514 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  464.984537][ T7514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  464.994989][ T7514] Call Trace:
[  464.998385][ T7514]  <TASK>
[  465.001491][ T7514]  dump_stack_lvl+0x125/0x1b0
[  465.006234][ T7514]  sysfs_warn_dup+0x7f/0xa0
[  465.010858][ T7514]  sysfs_create_dir_ns+0x249/0x2b0
[  465.016587][ T7514]  ? sysfs_create_mount_point+0xb0/0xb0
[  465.022317][ T7514]  ? spin_bug+0x1d0/0x1d0
[  465.027013][ T7514]  ? net_namespace+0x12/0x40
[  465.033099][ T7514]  ? device_namespace+0x8d/0xc0
[  465.038169][ T7514]  kobject_add_internal+0x2c8/0x970
[  465.043400][ T7514]  kobject_add+0x16f/0x240
[  465.047867][ T7514]  ? kset_create_and_add+0x190/0x190
[  465.053408][ T7514]  ? do_raw_spin_unlock+0x173/0x230
[  465.058640][ T7514]  ? kobject_put+0xbe/0x440
[  465.063334][ T7514]  ? device_add+0xc35/0x1aa0
[  465.068314][ T7514]  device_add+0x289/0x1aa0
[  465.073020][ T7514]  ? device_initialize+0x510/0x510
[  465.078753][ T7514]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  465.086446][ T7514]  ? __init_waitqueue_head+0xca/0x150
[  465.092022][ T7514]  netdev_register_kobject+0x183/0x3f0
[  465.097598][ T7514]  register_netdevice+0xbe6/0x14b0
[  465.102742][ T7514]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  465.109798][ T7514]  ? validate_linkmsg+0x6fc/0x9c0
[  465.115135][ T7514]  br_dev_newlink+0x27/0x110
[  465.119838][ T7514]  ? br_changelink+0x1760/0x1760
[  465.125761][ T7514]  __rtnl_newlink+0x1173/0x1930
[  465.131171][ T7514]  ? rtnl_link_unregister+0x260/0x260
[  465.136772][ T7514]  rtnl_newlink+0x67/0xa0
[  465.141395][ T7514]  ? __rtnl_newlink+0x1930/0x1930
[  465.146779][ T7514]  rtnetlink_rcv_msg+0x3c7/0xe00
[  465.151840][ T7514]  ? rtnl_fill_vf+0x4a0/0x4a0
[  465.156822][ T7514]  netlink_rcv_skb+0x16b/0x440
[  465.163264][ T7514]  ? rtnl_fill_vf+0x4a0/0x4a0
[  465.168127][ T7514]  ? netlink_ack+0x1380/0x1380
[  465.172997][ T7514]  ? netlink_deliver_tap+0x1a0/0xd00
[  465.178412][ T7514]  netlink_unicast+0x53b/0x810
[  465.183314][ T7514]  ? netlink_attachskb+0x880/0x880
[  465.188579][ T7514]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  465.194632][ T7514]  ? __phys_addr_symbol+0x30/0x70
[  465.199680][ T7514]  ? __check_object_size+0x323/0x730
[  465.204982][ T7514]  netlink_sendmsg+0x93c/0xe40
[  465.209884][ T7514]  ? netlink_unicast+0x810/0x810
[  465.215107][ T7514]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  465.220412][ T7514]  ? netlink_unicast+0x810/0x810
[  465.225461][ T7514]  __sock_sendmsg+0xd5/0x180
[  465.230078][ T7514]  ____sys_sendmsg+0x6ac/0x940
[  465.235134][ T7514]  ? copy_msghdr_from_user+0x10b/0x160
[  465.240818][ T7514]  ? kernel_sendmsg+0x50/0x50
[  465.245632][ T7514]  ___sys_sendmsg+0x135/0x1d0
[  465.250327][ T7514]  ? do_recvmmsg+0x740/0x740
[  465.254927][ T7514]  ? find_held_lock+0x2d/0x110
[  465.259724][ T7514]  ? __fget_light+0xe6/0x260
[  465.264337][ T7514]  __sys_sendmsg+0x117/0x1e0
[  465.268959][ T7514]  ? __sys_sendmsg_sock+0x30/0x30
[  465.274160][ T7514]  ? xfd_validate_state+0x5d/0x180
[  465.279312][ T7514]  ? syscall_enter_from_user_mode+0x7f/0x120
[  465.285752][ T7514]  do_syscall_64+0x40/0x110
[  465.290444][ T7514]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  465.296436][ T7514] RIP: 0033:0x7fe607e7c899
[  465.300850][ T7514] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
[  465.320979][ T7514] RSP: 002b:00007fe608bdd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  465.329851][ T7514] RAX: ffffffffffffffda RBX: 00007fe607f9bf80 RCX: 00007fe607e7c899
[  465.338024][ T7514] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  465.346430][ T7514] RBP: 00007fe607ed8ad0 R08: 0000000000000000 R09: 0000000000000000
[  465.354661][ T7514] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  465.362628][ T7514] R13: 000000000000000b R14: 00007fe607f9bf80 R15: 00007ffe84ac3478
[  465.370803][ T7514]  </TASK>
[  465.376099][ T7514] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  465.469546][ T7518] netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'.
[  465.480785][ T7518] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  465.490828][ T7518] CPU: 0 PID: 7518 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  465.501398][ T7518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  465.511743][ T7518] Call Trace:
[  465.515245][ T7518]  <TASK>
[  465.518281][ T7518]  dump_stack_lvl+0x125/0x1b0
[  465.522967][ T7518]  sysfs_warn_dup+0x7f/0xa0
[  465.527555][ T7518]  sysfs_create_dir_ns+0x249/0x2b0
[  465.532858][ T7518]  ? sysfs_create_mount_point+0xb0/0xb0
[  465.538709][ T7518]  ? spin_bug+0x1d0/0x1d0
[  465.543236][ T7518]  ? net_namespace+0x12/0x40
[  465.547952][ T7518]  ? device_namespace+0x8d/0xc0
[  465.553250][ T7518]  kobject_add_internal+0x2c8/0x970
[  465.558479][ T7518]  kobject_add+0x16f/0x240
[  465.563267][ T7518]  ? kset_create_and_add+0x190/0x190
[  465.568757][ T7518]  ? do_raw_spin_unlock+0x173/0x230
[  465.574051][ T7518]  ? kobject_put+0xbe/0x440
[  465.578741][ T7518]  ? device_add+0xc35/0x1aa0
[  465.583428][ T7518]  device_add+0x289/0x1aa0
[  465.588092][ T7518]  ? device_initialize+0x510/0x510
[  465.593472][ T7518]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  465.600766][ T7518]  ? __init_waitqueue_head+0xca/0x150
[  465.606209][ T7518]  netdev_register_kobject+0x183/0x3f0
[  465.611968][ T7518]  register_netdevice+0xbe6/0x14b0
[  465.617181][ T7518]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  465.623975][ T7518]  ? validate_linkmsg+0x6fc/0x9c0
[  465.629187][ T7518]  br_dev_newlink+0x27/0x110
[  465.633890][ T7518]  ? br_changelink+0x1760/0x1760
[  465.638856][ T7518]  __rtnl_newlink+0x1173/0x1930
[  465.643999][ T7518]  ? rtnl_link_unregister+0x260/0x260
[  465.649613][ T7518]  rtnl_newlink+0x67/0xa0
[  465.654003][ T7518]  ? __rtnl_newlink+0x1930/0x1930
[  465.659499][ T7518]  rtnetlink_rcv_msg+0x3c7/0xe00
[  465.664480][ T7518]  ? rtnl_fill_vf+0x4a0/0x4a0
[  465.669356][ T7518]  netlink_rcv_skb+0x16b/0x440
[  465.674146][ T7518]  ? rtnl_fill_vf+0x4a0/0x4a0
[  465.678835][ T7518]  ? netlink_ack+0x1380/0x1380
[  465.683794][ T7518]  ? netlink_deliver_tap+0x1a0/0xd00
[  465.689510][ T7518]  netlink_unicast+0x53b/0x810
[  465.694307][ T7518]  ? netlink_attachskb+0x880/0x880
[  465.699962][ T7518]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  465.705877][ T7518]  ? __phys_addr_symbol+0x30/0x70
[  465.711012][ T7518]  ? __check_object_size+0x323/0x730
[  465.716514][ T7518]  netlink_sendmsg+0x93c/0xe40
[  465.721560][ T7518]  ? netlink_unicast+0x810/0x810
[  465.726688][ T7518]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  465.732147][ T7518]  ? netlink_unicast+0x810/0x810
[  465.738249][ T7518]  __sock_sendmsg+0xd5/0x180
[  465.743166][ T7518]  ____sys_sendmsg+0x6ac/0x940
[  465.748275][ T7518]  ? copy_msghdr_from_user+0x10b/0x160
[  465.753748][ T7518]  ? kernel_sendmsg+0x50/0x50
[  465.758623][ T7518]  ___sys_sendmsg+0x135/0x1d0
[  465.763705][ T7518]  ? do_recvmmsg+0x740/0x740
[  465.768682][ T7518]  ? find_held_lock+0x2d/0x110
[  465.773718][ T7518]  ? __fget_light+0xe6/0x260
[  465.779798][ T7518]  __sys_sendmsg+0x117/0x1e0
[  465.784520][ T7518]  ? __sys_sendmsg_sock+0x30/0x30
[  465.789573][ T7518]  ? __do_sys_rseq+0x750/0x750
[  465.794362][ T7518]  ? syscall_enter_from_user_mode+0x7f/0x120
[  465.800725][ T7518]  do_syscall_64+0x40/0x110
[  465.805587][ T7518]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  465.811986][ T7518] RIP: 0033:0x7fe607e7c899
[  465.817150][ T7518] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
[  465.840908][ T7518] RSP: 002b:00007fe608bdd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  465.849982][ T7518] RAX: ffffffffffffffda RBX: 00007fe607f9bf80 RCX: 00007fe607e7c899
[  465.858219][ T7518] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  465.866375][ T7518] RBP: 00007fe607ed8ad0 R08: 0000000000000000 R09: 0000000000000000
[  465.874962][ T7518] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  465.884128][ T7518] R13: 000000000000000b R14: 00007fe607f9bf80 R15: 00007ffe84ac3478
[  465.892826][ T7518]  </TASK>
[  465.908031][ T7518] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  465.975226][ T7518] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  465.985173][ T7518] CPU: 1 PID: 7518 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  465.995373][ T7518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  466.005624][ T7518] Call Trace:
[  466.009106][ T7518]  <TASK>
[  466.012149][ T7518]  dump_stack_lvl+0x125/0x1b0
[  466.016855][ T7518]  sysfs_warn_dup+0x7f/0xa0
[  466.021483][ T7518]  sysfs_create_dir_ns+0x249/0x2b0
[  466.026691][ T7518]  ? sysfs_create_mount_point+0xb0/0xb0
[  466.032324][ T7518]  ? spin_bug+0x1d0/0x1d0
[  466.036825][ T7518]  ? net_namespace+0x12/0x40
[  466.041638][ T7518]  ? device_namespace+0x8d/0xc0
[  466.046516][ T7518]  kobject_add_internal+0x2c8/0x970
[  466.051747][ T7518]  kobject_add+0x16f/0x240
[  466.056275][ T7518]  ? kset_create_and_add+0x190/0x190
[  466.061927][ T7518]  ? do_raw_spin_unlock+0x173/0x230
[  466.067328][ T7518]  ? kobject_put+0xbe/0x440
[  466.072227][ T7518]  ? device_add+0xc35/0x1aa0
[  466.077187][ T7518]  device_add+0x289/0x1aa0
[  466.081975][ T7518]  ? device_initialize+0x510/0x510
[  466.087356][ T7518]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  466.095174][ T7518]  ? __init_waitqueue_head+0xca/0x150
[  466.100647][ T7518]  netdev_register_kobject+0x183/0x3f0
[  466.106289][ T7518]  register_netdevice+0xbe6/0x14b0
[  466.112215][ T7518]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  466.118781][ T7518]  ? validate_linkmsg+0x6fc/0x9c0
[  466.124116][ T7518]  br_dev_newlink+0x27/0x110
[  466.129092][ T7518]  ? br_changelink+0x1760/0x1760
[  466.134500][ T7518]  __rtnl_newlink+0x1173/0x1930
[  466.140243][ T7518]  ? rtnl_link_unregister+0x260/0x260
[  466.146242][ T7518]  rtnl_newlink+0x67/0xa0
[  466.150706][ T7518]  ? __rtnl_newlink+0x1930/0x1930
[  466.156010][ T7518]  rtnetlink_rcv_msg+0x3c7/0xe00
[  466.161503][ T7518]  ? rtnl_fill_vf+0x4a0/0x4a0
[  466.166572][ T7518]  netlink_rcv_skb+0x16b/0x440
[  466.171450][ T7518]  ? rtnl_fill_vf+0x4a0/0x4a0
[  466.177472][ T7518]  ? netlink_ack+0x1380/0x1380
[  466.182969][ T7518]  ? netlink_deliver_tap+0x1a0/0xd00
[  466.188661][ T7518]  netlink_unicast+0x53b/0x810
[  466.193634][ T7518]  ? netlink_attachskb+0x880/0x880
[  466.198981][ T7518]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  466.204901][ T7518]  ? __phys_addr_symbol+0x30/0x70
[  466.210017][ T7518]  ? __check_object_size+0x323/0x730
[  466.215485][ T7518]  netlink_sendmsg+0x93c/0xe40
[  466.220469][ T7518]  ? netlink_unicast+0x810/0x810
[  466.225436][ T7518]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  466.230843][ T7518]  ? netlink_unicast+0x810/0x810
[  466.236183][ T7518]  __sock_sendmsg+0xd5/0x180
[  466.240941][ T7518]  ____sys_sendmsg+0x6ac/0x940
[  466.245730][ T7518]  ? copy_msghdr_from_user+0x10b/0x160
[  466.251194][ T7518]  ? kernel_sendmsg+0x50/0x50
[  466.256267][ T7518]  ___sys_sendmsg+0x135/0x1d0
[  466.260998][ T7518]  ? do_recvmmsg+0x740/0x740
[  466.265627][ T7518]  ? find_held_lock+0x2d/0x110
[  466.270675][ T7518]  ? __fget_light+0xe6/0x260
[  466.275374][ T7518]  __sys_sendmsg+0x117/0x1e0
[  466.280065][ T7518]  ? __sys_sendmsg_sock+0x30/0x30
[  466.285193][ T7518]  ? xfd_validate_state+0x5d/0x180
[  466.290356][ T7518]  ? syscall_enter_from_user_mode+0x7f/0x120
[  466.296623][ T7518]  do_syscall_64+0x40/0x110
[  466.301129][ T7518]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  466.307200][ T7518] RIP: 0033:0x7fe607e7c899
[  466.311607][ T7518] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
[  466.332208][ T7518] RSP: 002b:00007fe608bdd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  466.341841][ T7518] RAX: ffffffffffffffda RBX: 00007fe607f9bf80 RCX: 00007fe607e7c899
[  466.350974][ T7518] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  466.359396][ T7518] RBP: 00007fe607ed8ad0 R08: 0000000000000000 R09: 0000000000000000
[  466.367461][ T7518] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  466.375961][ T7518] R13: 000000000000000b R14: 00007fe607f9bf80 R15: 00007ffe84ac3478
[  466.384496][ T7518]  </TASK>
[  466.387904][ T7518] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  466.788856][ T2468] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  466.850787][ T2468] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  466.931163][ T2468] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  467.019402][ T2468] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  468.216558][ T2468] hsr_slave_0: left promiscuous mode
[  468.223940][ T2468] hsr_slave_1: left promiscuous mode
[  468.230275][ T2468] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  468.239555][ T2468] batman_adv: batadv0: Removing interface: batadv_slave_0
[  468.250003][ T2468] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  468.258357][ T2468] batman_adv: batadv0: Removing interface: batadv_slave_1
[  468.268290][ T2468] bridge_slave_1: left allmulticast mode
[  468.274707][ T2468] bridge_slave_1: left promiscuous mode
[  468.280606][ T2468] bridge0: port 2(bridge_slave_1) entered disabled state
[  468.292093][ T2468] bridge_slave_0: left allmulticast mode
[  468.299523][ T2468] bridge_slave_0: left promiscuous mode
[  468.306442][ T2468] bridge0: port 1(bridge_slave_0) entered disabled state
[  468.426152][ T2468] veth1_macvtap: left promiscuous mode
[  468.432063][ T2468] veth0_macvtap: left promiscuous mode
[  468.437960][ T2468] veth1_vlan: left promiscuous mode
[  468.443697][ T2468] veth0_vlan: left promiscuous mode
[  473.312670][ T2468] team0 (unregistering): Port device team_slave_1 removed
[  473.335765][ T2468] team0 (unregistering): Port device team_slave_0 removed
[  473.351279][ T2468] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  473.367839][ T2468] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  473.452205][ T2468] bond0 (unregistering): Released all slaves
Warning: Permanently added '10.128.0.186' (ED25519) to the list of known hosts.
[  474.110902][ T7587] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  474.205285][ T7589] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  474.266640][ T7590] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  474.346762][ T7591] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  474.414124][ T7592] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  474.485189][ T7594] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  474.594039][ T7596] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  474.696233][ T7598] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  474.794246][ T7601] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  474.915938][ T7605] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  479.079963][ T7695] sysfs: cannot create duplicate filename '/devices/virtual/net/bpq100000000000'
[  479.090432][ T7695] CPU: 1 PID: 7695 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  479.100627][ T7695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  479.110691][ T7695] Call Trace:
[  479.113964][ T7695]  <TASK>
[  479.116912][ T7695]  dump_stack_lvl+0x125/0x1b0
[  479.121780][ T7695]  sysfs_warn_dup+0x7f/0xa0
[  479.126289][ T7695]  sysfs_create_dir_ns+0x249/0x2b0
[  479.131424][ T7695]  ? sysfs_create_mount_point+0xb0/0xb0
[  479.137058][ T7695]  ? spin_bug+0x1d0/0x1d0
[  479.142529][ T7695]  ? net_namespace+0x12/0x40
[  479.147257][ T7695]  ? device_namespace+0x8d/0xc0
[  479.152470][ T7695]  kobject_add_internal+0x2c8/0x970
[  479.157695][ T7695]  kobject_add+0x16f/0x240
[  479.162131][ T7695]  ? kset_create_and_add+0x190/0x190
[  479.167483][ T7695]  ? do_raw_spin_unlock+0x173/0x230
[  479.173637][ T7695]  ? kobject_put+0xbe/0x440
[  479.178388][ T7695]  ? device_add+0xc35/0x1aa0
[  479.183086][ T7695]  device_add+0x289/0x1aa0
[  479.187737][ T7695]  ? device_initialize+0x510/0x510
[  479.192852][ T7695]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  479.199773][ T7695]  ? __init_waitqueue_head+0xca/0x150
[  479.205185][ T7695]  netdev_register_kobject+0x183/0x3f0
[  479.210747][ T7695]  register_netdevice+0xbe6/0x14b0
[  479.216397][ T7695]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  479.222518][ T7695]  ? alloc_netdev_mqs+0xee6/0x1290
[  479.227773][ T7695]  bpq_device_event+0x39e/0xaf0
[  479.232924][ T7695]  ? team_device_event+0x219/0x750
[  479.238408][ T7695]  notifier_call_chain+0xb6/0x3b0
[  479.243567][ T7695]  ? bpq_seq_stop+0xb0/0xb0
[  479.248534][ T7695]  call_netdevice_notifiers_info+0xbe/0x130
[  479.255678][ T7695]  __dev_notify_flags+0x12d/0x2e0
[  479.260731][ T7695]  ? dev_change_name+0x800/0x800
[  479.265767][ T7695]  ? dev_set_allmulti+0x30/0x30
[  479.270823][ T7695]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  479.277266][ T7695]  ? validate_linkmsg+0x6fc/0x9c0
[  479.282390][ T7695]  rtnl_configure_link+0x1b3/0x260
[  479.287867][ T7695]  ? br_dev_newlink+0xd3/0x110
[  479.293268][ T7695]  __rtnl_newlink+0x11a7/0x1930
[  479.298330][ T7695]  ? rtnl_link_unregister+0x260/0x260
[  479.304260][ T7695]  rtnl_newlink+0x67/0xa0
[  479.308613][ T7695]  ? __rtnl_newlink+0x1930/0x1930
[  479.314018][ T7695]  rtnetlink_rcv_msg+0x3c7/0xe00
[  479.319177][ T7695]  ? rtnl_fill_vf+0x4a0/0x4a0
[  479.325675][ T7695]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  479.332214][ T7695]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  479.338497][ T7695]  netlink_rcv_skb+0x16b/0x440
[  479.343522][ T7695]  ? rtnl_fill_vf+0x4a0/0x4a0
[  479.348310][ T7695]  ? netlink_ack+0x1380/0x1380
[  479.353191][ T7695]  ? lock_sync+0x190/0x190
[  479.357817][ T7695]  ? netlink_deliver_tap+0x1a0/0xd00
[  479.363219][ T7695]  ? _copy_from_iter+0x2c1/0x10f0
[  479.368290][ T7695]  netlink_unicast+0x53b/0x810
[  479.373282][ T7695]  ? netlink_attachskb+0x880/0x880
[  479.378434][ T7695]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  479.384463][ T7695]  ? __phys_addr_symbol+0x30/0x70
[  479.389532][ T7695]  ? __check_object_size+0x323/0x730
[  479.395477][ T7695]  netlink_sendmsg+0x93c/0xe40
[  479.400356][ T7695]  ? netlink_unicast+0x810/0x810
[  479.406118][ T7695]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  479.412307][ T7695]  ? netlink_unicast+0x810/0x810
[  479.417448][ T7695]  __sock_sendmsg+0xd5/0x180
[  479.422061][ T7695]  ____sys_sendmsg+0x6ac/0x940
[  479.426949][ T7695]  ? copy_msghdr_from_user+0x10b/0x160
[  479.432458][ T7695]  ? kernel_sendmsg+0x50/0x50
[  479.437267][ T7695]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  479.443578][ T7695]  ___sys_sendmsg+0x135/0x1d0
[  479.448284][ T7695]  ? do_recvmmsg+0x740/0x740
[  479.452889][ T7695]  ? find_held_lock+0x2d/0x110
[  479.457680][ T7695]  ? preempt_count_sub+0x160/0x160
[  479.462917][ T7695]  ? __fget_light+0x1fc/0x260
[  479.467625][ T7695]  __sys_sendmsg+0x117/0x1e0
[  479.472237][ T7695]  ? __sys_sendmsg_sock+0x30/0x30
[  479.477704][ T7695]  ? syscall_enter_from_user_mode+0x7f/0x120
[  479.483731][ T7695]  do_syscall_64+0x40/0x110
[  479.488344][ T7695]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  479.494609][ T7695] RIP: 0033:0x7fb700fd30b9
[  479.499207][ T7695] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  479.519782][ T7695] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  479.528723][ T7695] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  479.536811][ T7695] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  479.546012][ T7695] RBP: 0000000000074f03 R08: 0000000000000000 R09: 0000000000000006
[  479.555066][ T7695] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  479.563307][ T7695] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  479.572789][ T7695]  </TASK>
[  479.583467][ T7695] kobject: kobject_add_internal failed for bpq100000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  479.600066][ T7695] sysfs: cannot create duplicate filename '/devices/virtual/net/lapb10000000000'
[  479.610622][ T7695] CPU: 0 PID: 7695 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  479.621581][ T7695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  479.633746][ T7695] Call Trace:
[  479.637332][ T7695]  <TASK>
[  479.640716][ T7695]  dump_stack_lvl+0x125/0x1b0
[  479.646317][ T7695]  sysfs_warn_dup+0x7f/0xa0
[  479.651185][ T7695]  sysfs_create_dir_ns+0x249/0x2b0
[  479.656574][ T7695]  ? sysfs_create_mount_point+0xb0/0xb0
[  479.662758][ T7695]  ? spin_bug+0x1d0/0x1d0
[  479.667235][ T7695]  ? net_namespace+0x12/0x40
[  479.671830][ T7695]  ? device_namespace+0x8d/0xc0
[  479.677131][ T7695]  kobject_add_internal+0x2c8/0x970
[  479.682337][ T7695]  kobject_add+0x16f/0x240
[  479.686842][ T7695]  ? kset_create_and_add+0x190/0x190
[  479.692157][ T7695]  ? kobject_put+0xbe/0x440
[  479.696735][ T7695]  ? device_add+0xc35/0x1aa0
[  479.701697][ T7695]  device_add+0x289/0x1aa0
[  479.706209][ T7695]  ? device_initialize+0x510/0x510
[  479.711415][ T7695]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  479.718460][ T7695]  ? __init_waitqueue_head+0xca/0x150
[  479.724031][ T7695]  netdev_register_kobject+0x183/0x3f0
[  479.730058][ T7695]  register_netdevice+0xbe6/0x14b0
[  479.735569][ T7695]  ? lockdep_hardirqs_on+0x7d/0x110
[  479.741396][ T7695]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  479.748938][ T7695]  ? lapbeth_setup+0x170/0x170
[  479.753924][ T7695]  lapbeth_device_event+0x5b8/0xd40
[  479.759417][ T7695]  notifier_call_chain+0xb6/0x3b0
[  479.764640][ T7695]  ? lapbeth_xmit+0x290/0x290
[  479.769779][ T7695]  call_netdevice_notifiers_info+0xbe/0x130
[  479.777260][ T7695]  __dev_notify_flags+0x12d/0x2e0
[  479.782937][ T7695]  ? dev_change_name+0x800/0x800
[  479.788450][ T7695]  ? dev_set_allmulti+0x30/0x30
[  479.793528][ T7695]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  479.800326][ T7695]  ? validate_linkmsg+0x6fc/0x9c0
[  479.805443][ T7695]  rtnl_configure_link+0x1b3/0x260
[  479.811925][ T7695]  ? br_dev_newlink+0xd3/0x110
[  479.819651][ T7695]  __rtnl_newlink+0x11a7/0x1930
[  479.825326][ T7695]  ? rtnl_link_unregister+0x260/0x260
[  479.831174][ T7695]  rtnl_newlink+0x67/0xa0
[  479.836490][ T7695]  ? __rtnl_newlink+0x1930/0x1930
[  479.842406][ T7695]  rtnetlink_rcv_msg+0x3c7/0xe00
[  479.847380][ T7695]  ? rtnl_fill_vf+0x4a0/0x4a0
[  479.852902][ T7695]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  479.859728][ T7695]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  479.866272][ T7695]  netlink_rcv_skb+0x16b/0x440
[  479.871658][ T7695]  ? rtnl_fill_vf+0x4a0/0x4a0
[  479.876746][ T7695]  ? netlink_ack+0x1380/0x1380
[  479.881557][ T7695]  ? lock_sync+0x190/0x190
[  479.886099][ T7695]  ? netlink_deliver_tap+0x1a0/0xd00
[  479.892022][ T7695]  ? _copy_from_iter+0x2c1/0x10f0
[  479.897516][ T7695]  netlink_unicast+0x53b/0x810
[  479.902491][ T7695]  ? netlink_attachskb+0x880/0x880
[  479.907802][ T7695]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  479.913814][ T7695]  ? __phys_addr_symbol+0x30/0x70
[  479.919139][ T7695]  ? __check_object_size+0x323/0x730
[  479.924901][ T7695]  netlink_sendmsg+0x93c/0xe40
[  479.930150][ T7695]  ? netlink_unicast+0x810/0x810
[  479.935747][ T7695]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  479.941537][ T7695]  ? netlink_unicast+0x810/0x810
[  479.946706][ T7695]  __sock_sendmsg+0xd5/0x180
[  479.951502][ T7695]  ____sys_sendmsg+0x6ac/0x940
[  479.957476][ T7695]  ? copy_msghdr_from_user+0x10b/0x160
[  479.963141][ T7695]  ? kernel_sendmsg+0x50/0x50
[  479.968097][ T7695]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  479.974717][ T7695]  ___sys_sendmsg+0x135/0x1d0
[  479.979443][ T7695]  ? do_recvmmsg+0x740/0x740
[  479.984273][ T7695]  ? find_held_lock+0x2d/0x110
[  479.990135][ T7695]  ? preempt_count_sub+0x160/0x160
[  479.995647][ T7695]  ? __fget_light+0x1fc/0x260
[  480.000509][ T7695]  __sys_sendmsg+0x117/0x1e0
[  480.005223][ T7695]  ? __sys_sendmsg_sock+0x30/0x30
[  480.011063][ T7695]  ? syscall_enter_from_user_mode+0x7f/0x120
[  480.017286][ T7695]  do_syscall_64+0x40/0x110
[  480.021910][ T7695]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  480.027853][ T7695] RIP: 0033:0x7fb700fd30b9
[  480.032975][ T7695] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  480.053406][ T7695] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  480.062251][ T7695] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  480.072129][ T7695] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  480.080299][ T7695] RBP: 0000000000074f03 R08: 0000000000000000 R09: 0000000000000006
[  480.089673][ T7695] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  480.097905][ T7695] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  480.106433][ T7695]  </TASK>
[  480.111364][ T7695] kobject: kobject_add_internal failed for lapb10000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  480.147874][ T7696] __nla_validate_parse: 82 callbacks suppressed
[  480.147892][ T7696] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  480.179045][ T7696] sysfs: cannot create duplicate filename '/devices/virtual/net/bpq100000000000'
[  480.188991][ T7696] CPU: 1 PID: 7696 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  480.199495][ T7696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  480.210805][ T7696] Call Trace:
[  480.214261][ T7696]  <TASK>
[  480.217187][ T7696]  dump_stack_lvl+0x125/0x1b0
[  480.222129][ T7696]  sysfs_warn_dup+0x7f/0xa0
[  480.226826][ T7696]  sysfs_create_dir_ns+0x249/0x2b0
[  480.232158][ T7696]  ? sysfs_create_mount_point+0xb0/0xb0
[  480.238393][ T7696]  ? spin_bug+0x1d0/0x1d0
[  480.242737][ T7696]  ? net_namespace+0x12/0x40
[  480.247620][ T7696]  ? device_namespace+0x8d/0xc0
[  480.252723][ T7696]  kobject_add_internal+0x2c8/0x970
[  480.258064][ T7696]  kobject_add+0x16f/0x240
[  480.262599][ T7696]  ? kset_create_and_add+0x190/0x190
[  480.268251][ T7696]  ? do_raw_spin_unlock+0x173/0x230
[  480.273796][ T7696]  ? kobject_put+0xbe/0x440
[  480.278484][ T7696]  ? device_add+0xc35/0x1aa0
[  480.283077][ T7696]  device_add+0x289/0x1aa0
[  480.287493][ T7696]  ? device_initialize+0x510/0x510
[  480.292720][ T7696]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  480.299937][ T7696]  ? __init_waitqueue_head+0xca/0x150
[  480.305403][ T7696]  netdev_register_kobject+0x183/0x3f0
[  480.310984][ T7696]  register_netdevice+0xbe6/0x14b0
[  480.316286][ T7696]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  480.322671][ T7696]  ? alloc_netdev_mqs+0xee6/0x1290
[  480.327827][ T7696]  bpq_device_event+0x39e/0xaf0
[  480.332799][ T7696]  ? team_device_event+0x219/0x750
[  480.338063][ T7696]  notifier_call_chain+0xb6/0x3b0
[  480.343894][ T7696]  ? bpq_seq_stop+0xb0/0xb0
[  480.348963][ T7696]  call_netdevice_notifiers_info+0xbe/0x130
[  480.355132][ T7696]  __dev_notify_flags+0x12d/0x2e0
[  480.360545][ T7696]  ? dev_change_name+0x800/0x800
[  480.365527][ T7696]  ? dev_set_allmulti+0x30/0x30
[  480.370739][ T7696]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  480.377002][ T7696]  ? validate_linkmsg+0x6fc/0x9c0
[  480.382394][ T7696]  rtnl_configure_link+0x1b3/0x260
[  480.387779][ T7696]  ? br_dev_newlink+0xd3/0x110
[  480.392567][ T7696]  __rtnl_newlink+0x11a7/0x1930
[  480.397545][ T7696]  ? rtnl_link_unregister+0x260/0x260
[  480.403050][ T7696]  rtnl_newlink+0x67/0xa0
[  480.407417][ T7696]  ? __rtnl_newlink+0x1930/0x1930
[  480.412478][ T7696]  rtnetlink_rcv_msg+0x3c7/0xe00
[  480.417595][ T7696]  ? rtnl_fill_vf+0x4a0/0x4a0
[  480.422408][ T7696]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  480.428509][ T7696]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  480.434717][ T7696]  netlink_rcv_skb+0x16b/0x440
[  480.439859][ T7696]  ? rtnl_fill_vf+0x4a0/0x4a0
[  480.444805][ T7696]  ? netlink_ack+0x1380/0x1380
[  480.449727][ T7696]  ? lock_sync+0x190/0x190
[  480.455076][ T7696]  ? netlink_deliver_tap+0x1a0/0xd00
[  480.460750][ T7696]  ? _copy_from_iter+0x2c1/0x10f0
[  480.465986][ T7696]  netlink_unicast+0x53b/0x810
[  480.471076][ T7696]  ? netlink_attachskb+0x880/0x880
[  480.478209][ T7696]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  480.484377][ T7696]  ? __phys_addr_symbol+0x30/0x70
[  480.489526][ T7696]  ? __check_object_size+0x323/0x730
[  480.495007][ T7696]  netlink_sendmsg+0x93c/0xe40
[  480.499978][ T7696]  ? netlink_unicast+0x810/0x810
[  480.505154][ T7696]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  480.510909][ T7696]  ? netlink_unicast+0x810/0x810
[  480.516314][ T7696]  __sock_sendmsg+0xd5/0x180
[  480.521459][ T7696]  ____sys_sendmsg+0x6ac/0x940
[  480.526694][ T7696]  ? copy_msghdr_from_user+0x10b/0x160
[  480.532357][ T7696]  ? kernel_sendmsg+0x50/0x50
[  480.537062][ T7696]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  480.543160][ T7696]  ___sys_sendmsg+0x135/0x1d0
[  480.548125][ T7696]  ? do_recvmmsg+0x740/0x740
[  480.552768][ T7696]  ? find_held_lock+0x2d/0x110
[  480.557586][ T7696]  ? preempt_count_sub+0x160/0x160
[  480.563036][ T7696]  ? __fget_light+0x1fc/0x260
[  480.568263][ T7696]  __sys_sendmsg+0x117/0x1e0
[  480.573049][ T7696]  ? __sys_sendmsg_sock+0x30/0x30
[  480.578179][ T7696]  ? syscall_enter_from_user_mode+0x7f/0x120
[  480.584357][ T7696]  do_syscall_64+0x40/0x110
[  480.589252][ T7696]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  480.595453][ T7696] RIP: 0033:0x7fb700fd30b9
[  480.600060][ T7696] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  480.620443][ T7696] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  480.629364][ T7696] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  480.637543][ T7696] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  480.645791][ T7696] RBP: 0000000000074f2d R08: 0000000000000000 R09: 0000000000000006
[  480.653765][ T7696] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  480.661915][ T7696] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  480.669923][ T7696]  </TASK>
[  480.681270][ T7696] kobject: kobject_add_internal failed for bpq100000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  480.697352][ T7696] sysfs: cannot create duplicate filename '/devices/virtual/net/lapb10000000000'
[  480.708180][ T7696] CPU: 0 PID: 7696 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  480.718556][ T7696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  480.728891][ T7696] Call Trace:
[  480.732524][ T7696]  <TASK>
[  480.735489][ T7696]  dump_stack_lvl+0x125/0x1b0
[  480.740166][ T7696]  sysfs_warn_dup+0x7f/0xa0
[  480.744807][ T7696]  sysfs_create_dir_ns+0x249/0x2b0
[  480.750383][ T7696]  ? sysfs_create_mount_point+0xb0/0xb0
[  480.755957][ T7696]  ? spin_bug+0x1d0/0x1d0
[  480.760430][ T7696]  ? net_namespace+0x12/0x40
[  480.765213][ T7696]  ? device_namespace+0x8d/0xc0
[  480.770194][ T7696]  kobject_add_internal+0x2c8/0x970
[  480.776290][ T7696]  kobject_add+0x16f/0x240
[  480.780909][ T7696]  ? kset_create_and_add+0x190/0x190
[  480.786401][ T7696]  ? do_raw_spin_unlock+0x173/0x230
[  480.791883][ T7696]  ? kobject_put+0xbe/0x440
[  480.796505][ T7696]  ? device_add+0xc35/0x1aa0
[  480.801281][ T7696]  device_add+0x289/0x1aa0
[  480.806066][ T7696]  ? device_initialize+0x510/0x510
[  480.811460][ T7696]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  480.818618][ T7696]  ? __init_waitqueue_head+0xca/0x150
[  480.825252][ T7696]  netdev_register_kobject+0x183/0x3f0
[  480.831084][ T7696]  register_netdevice+0xbe6/0x14b0
[  480.837468][ T7696]  ? lockdep_hardirqs_on+0x7d/0x110
[  480.843044][ T7696]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  480.849046][ T7696]  ? lapbeth_setup+0x170/0x170
[  480.854085][ T7696]  lapbeth_device_event+0x5b8/0xd40
[  480.859507][ T7696]  notifier_call_chain+0xb6/0x3b0
[  480.864816][ T7696]  ? lapbeth_xmit+0x290/0x290
[  480.870949][ T7696]  call_netdevice_notifiers_info+0xbe/0x130
[  480.877136][ T7696]  __dev_notify_flags+0x12d/0x2e0
[  480.882523][ T7696]  ? dev_change_name+0x800/0x800
[  480.887558][ T7696]  ? dev_set_allmulti+0x30/0x30
[  480.892505][ T7696]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  480.898489][ T7696]  ? validate_linkmsg+0x6fc/0x9c0
[  480.903560][ T7696]  rtnl_configure_link+0x1b3/0x260
[  480.908786][ T7696]  ? br_dev_newlink+0xd3/0x110
[  480.913733][ T7696]  __rtnl_newlink+0x11a7/0x1930
[  480.919751][ T7696]  ? rtnl_link_unregister+0x260/0x260
[  480.925537][ T7696]  rtnl_newlink+0x67/0xa0
[  480.930716][ T7696]  ? __rtnl_newlink+0x1930/0x1930
[  480.935962][ T7696]  rtnetlink_rcv_msg+0x3c7/0xe00
[  480.942433][ T7696]  ? rtnl_fill_vf+0x4a0/0x4a0
[  480.947676][ T7696]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  480.954178][ T7696]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  480.961518][ T7696]  netlink_rcv_skb+0x16b/0x440
[  480.968227][ T7696]  ? rtnl_fill_vf+0x4a0/0x4a0
[  480.973038][ T7696]  ? netlink_ack+0x1380/0x1380
[  480.978189][ T7696]  ? lock_sync+0x190/0x190
[  480.982991][ T7696]  ? netlink_deliver_tap+0x1a0/0xd00
[  480.988312][ T7696]  ? _copy_from_iter+0x2c1/0x10f0
[  480.993461][ T7696]  netlink_unicast+0x53b/0x810
[  480.998510][ T7696]  ? netlink_attachskb+0x880/0x880
[  481.003990][ T7696]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  481.010248][ T7696]  ? __phys_addr_symbol+0x30/0x70
[  481.015289][ T7696]  ? __check_object_size+0x323/0x730
[  481.020850][ T7696]  netlink_sendmsg+0x93c/0xe40
[  481.025719][ T7696]  ? netlink_unicast+0x810/0x810
[  481.035746][ T7696]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  481.041444][ T7696]  ? netlink_unicast+0x810/0x810
[  481.046590][ T7696]  __sock_sendmsg+0xd5/0x180
[  481.051386][ T7696]  ____sys_sendmsg+0x6ac/0x940
[  481.056230][ T7696]  ? copy_msghdr_from_user+0x10b/0x160
[  481.061805][ T7696]  ? kernel_sendmsg+0x50/0x50
[  481.066506][ T7696]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  481.072786][ T7696]  ___sys_sendmsg+0x135/0x1d0
[  481.078184][ T7696]  ? do_recvmmsg+0x740/0x740
[  481.082810][ T7696]  ? find_held_lock+0x2d/0x110
[  481.087925][ T7696]  ? preempt_count_sub+0x160/0x160
[  481.093146][ T7696]  ? __fget_light+0x1fc/0x260
[  481.097921][ T7696]  __sys_sendmsg+0x117/0x1e0
[  481.102632][ T7696]  ? __sys_sendmsg_sock+0x30/0x30
[  481.107951][ T7696]  ? syscall_enter_from_user_mode+0x7f/0x120
[  481.114529][ T7696]  do_syscall_64+0x40/0x110
[  481.119481][ T7696]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  481.126267][ T7696] RIP: 0033:0x7fb700fd30b9
[  481.131038][ T7696] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  481.153085][ T7696] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  481.162307][ T7696] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  481.170407][ T7696] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  481.178650][ T7696] RBP: 0000000000074f2d R08: 0000000000000000 R09: 0000000000000006
[  481.186892][ T7696] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  481.195312][ T7696] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  481.203317][ T7696]  </TASK>
[  481.211868][ T7696] kobject: kobject_add_internal failed for lapb10000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  481.244574][ T7697] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  481.267207][ T7697] sysfs: cannot create duplicate filename '/devices/virtual/net/bpq100000000000'
[  481.278787][ T7697] CPU: 0 PID: 7697 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  481.288973][ T7697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  481.299409][ T7697] Call Trace:
[  481.302949][ T7697]  <TASK>
[  481.305876][ T7697]  dump_stack_lvl+0x125/0x1b0
[  481.310734][ T7697]  sysfs_warn_dup+0x7f/0xa0
[  481.315428][ T7697]  sysfs_create_dir_ns+0x249/0x2b0
[  481.320572][ T7697]  ? sysfs_create_mount_point+0xb0/0xb0
[  481.326210][ T7697]  ? spin_bug+0x1d0/0x1d0
[  481.330736][ T7697]  ? net_namespace+0x12/0x40
[  481.335508][ T7697]  ? device_namespace+0x8d/0xc0
[  481.341102][ T7697]  kobject_add_internal+0x2c8/0x970
[  481.346929][ T7697]  kobject_add+0x16f/0x240
[  481.351519][ T7697]  ? kset_create_and_add+0x190/0x190
[  481.356990][ T7697]  ? do_raw_spin_unlock+0x173/0x230
[  481.362203][ T7697]  ? kobject_put+0xbe/0x440
[  481.366722][ T7697]  ? device_add+0xc35/0x1aa0
[  481.371418][ T7697]  device_add+0x289/0x1aa0
[  481.375938][ T7697]  ? device_initialize+0x510/0x510
[  481.381149][ T7697]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  481.388513][ T7697]  ? __init_waitqueue_head+0xca/0x150
[  481.394185][ T7697]  netdev_register_kobject+0x183/0x3f0
[  481.400017][ T7697]  register_netdevice+0xbe6/0x14b0
[  481.405415][ T7697]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  481.411506][ T7697]  ? alloc_netdev_mqs+0xee6/0x1290
[  481.416726][ T7697]  bpq_device_event+0x39e/0xaf0
[  481.421761][ T7697]  ? team_device_event+0x219/0x750
[  481.427144][ T7697]  notifier_call_chain+0xb6/0x3b0
[  481.432227][ T7697]  ? bpq_seq_stop+0xb0/0xb0
[  481.436924][ T7697]  call_netdevice_notifiers_info+0xbe/0x130
[  481.443210][ T7697]  __dev_notify_flags+0x12d/0x2e0
[  481.449240][ T7697]  ? dev_change_name+0x800/0x800
[  481.454480][ T7697]  ? dev_set_allmulti+0x30/0x30
[  481.459622][ T7697]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  481.465640][ T7697]  ? validate_linkmsg+0x6fc/0x9c0
[  481.470992][ T7697]  rtnl_configure_link+0x1b3/0x260
[  481.476123][ T7697]  ? br_dev_newlink+0xd3/0x110
[  481.481107][ T7697]  __rtnl_newlink+0x11a7/0x1930
[  481.486266][ T7697]  ? rtnl_link_unregister+0x260/0x260
[  481.492153][ T7697]  rtnl_newlink+0x67/0xa0
[  481.496772][ T7697]  ? __rtnl_newlink+0x1930/0x1930
[  481.502505][ T7697]  rtnetlink_rcv_msg+0x3c7/0xe00
[  481.509233][ T7697]  ? rtnl_fill_vf+0x4a0/0x4a0
[  481.514312][ T7697]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  481.520678][ T7697]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  481.528809][ T7697]  netlink_rcv_skb+0x16b/0x440
[  481.534782][ T7697]  ? rtnl_fill_vf+0x4a0/0x4a0
[  481.539916][ T7697]  ? netlink_ack+0x1380/0x1380
[  481.544960][ T7697]  ? lock_sync+0x190/0x190
[  481.549506][ T7697]  ? netlink_deliver_tap+0x1a0/0xd00
[  481.555679][ T7697]  ? _copy_from_iter+0x2c1/0x10f0
[  481.560903][ T7697]  netlink_unicast+0x53b/0x810
[  481.565873][ T7697]  ? netlink_attachskb+0x880/0x880
[  481.571603][ T7697]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  481.577682][ T7697]  ? __phys_addr_symbol+0x30/0x70
[  481.582722][ T7697]  ? __check_object_size+0x323/0x730
[  481.588248][ T7697]  netlink_sendmsg+0x93c/0xe40
[  481.593230][ T7697]  ? netlink_unicast+0x810/0x810
[  481.598279][ T7697]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  481.603849][ T7697]  ? netlink_unicast+0x810/0x810
[  481.609151][ T7697]  __sock_sendmsg+0xd5/0x180
[  481.614013][ T7697]  ____sys_sendmsg+0x6ac/0x940
[  481.618878][ T7697]  ? copy_msghdr_from_user+0x10b/0x160
[  481.624894][ T7697]  ? kernel_sendmsg+0x50/0x50
[  481.629591][ T7697]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  481.635770][ T7697]  ___sys_sendmsg+0x135/0x1d0
[  481.640480][ T7697]  ? do_recvmmsg+0x740/0x740
[  481.645275][ T7697]  ? find_held_lock+0x2d/0x110
[  481.651028][ T7697]  ? preempt_count_sub+0x160/0x160
[  481.656347][ T7697]  ? __fget_light+0x1fc/0x260
[  481.661038][ T7697]  __sys_sendmsg+0x117/0x1e0
[  481.665644][ T7697]  ? __sys_sendmsg_sock+0x30/0x30
[  481.670850][ T7697]  ? syscall_enter_from_user_mode+0x7f/0x120
[  481.676967][ T7697]  do_syscall_64+0x40/0x110
[  481.681641][ T7697]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  481.687562][ T7697] RIP: 0033:0x7fb700fd30b9
[  481.692066][ T7697] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  481.711861][ T7697] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  481.720478][ T7697] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  481.728552][ T7697] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  481.736715][ T7697] RBP: 0000000000075366 R08: 0000000000000000 R09: 0000000000000006
[  481.744873][ T7697] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  481.753475][ T7697] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  481.761756][ T7697]  </TASK>
[  481.771367][ T7697] kobject: kobject_add_internal failed for bpq100000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  481.788185][ T7697] sysfs: cannot create duplicate filename '/devices/virtual/net/lapb10000000000'
[  481.798041][ T7697] CPU: 0 PID: 7697 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  481.808585][ T7697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  481.819199][ T7697] Call Trace:
[  481.822589][ T7697]  <TASK>
[  481.825629][ T7697]  dump_stack_lvl+0x125/0x1b0
[  481.830406][ T7697]  sysfs_warn_dup+0x7f/0xa0
[  481.834952][ T7697]  sysfs_create_dir_ns+0x249/0x2b0
[  481.840513][ T7697]  ? sysfs_create_mount_point+0xb0/0xb0
[  481.846438][ T7697]  ? spin_bug+0x1d0/0x1d0
[  481.851138][ T7697]  ? net_namespace+0x12/0x40
[  481.855929][ T7697]  ? device_namespace+0x8d/0xc0
[  481.861176][ T7697]  kobject_add_internal+0x2c8/0x970
[  481.866688][ T7697]  kobject_add+0x16f/0x240
[  481.871233][ T7697]  ? kset_create_and_add+0x190/0x190
[  481.876884][ T7697]  ? do_raw_spin_unlock+0x173/0x230
[  481.882221][ T7697]  ? kobject_put+0xbe/0x440
[  481.893105][ T7697]  ? device_add+0xc35/0x1aa0
[  481.897891][ T7697]  device_add+0x289/0x1aa0
[  481.902581][ T7697]  ? device_initialize+0x510/0x510
[  481.908048][ T7697]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  481.915204][ T7697]  ? __init_waitqueue_head+0xca/0x150
[  481.920818][ T7697]  netdev_register_kobject+0x183/0x3f0
[  481.926492][ T7697]  register_netdevice+0xbe6/0x14b0
[  481.931726][ T7697]  ? lockdep_hardirqs_on+0x7d/0x110
[  481.937161][ T7697]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  481.943699][ T7697]  ? lapbeth_setup+0x170/0x170
[  481.948586][ T7697]  lapbeth_device_event+0x5b8/0xd40
[  481.953928][ T7697]  notifier_call_chain+0xb6/0x3b0
[  481.958972][ T7697]  ? lapbeth_xmit+0x290/0x290
[  481.963664][ T7697]  call_netdevice_notifiers_info+0xbe/0x130
[  481.969738][ T7697]  __dev_notify_flags+0x12d/0x2e0
[  481.975365][ T7697]  ? dev_change_name+0x800/0x800
[  481.980584][ T7697]  ? dev_set_allmulti+0x30/0x30
[  481.985641][ T7697]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  481.992360][ T7697]  ? validate_linkmsg+0x6fc/0x9c0
[  481.997496][ T7697]  rtnl_configure_link+0x1b3/0x260
[  482.002842][ T7697]  ? br_dev_newlink+0xd3/0x110
[  482.007627][ T7697]  __rtnl_newlink+0x11a7/0x1930
[  482.012585][ T7697]  ? rtnl_link_unregister+0x260/0x260
[  482.018320][ T7697]  rtnl_newlink+0x67/0xa0
[  482.022750][ T7697]  ? __rtnl_newlink+0x1930/0x1930
[  482.027960][ T7697]  rtnetlink_rcv_msg+0x3c7/0xe00
[  482.032913][ T7697]  ? rtnl_fill_vf+0x4a0/0x4a0
[  482.037600][ T7697]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  482.044206][ T7697]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  482.050641][ T7697]  netlink_rcv_skb+0x16b/0x440
[  482.055683][ T7697]  ? rtnl_fill_vf+0x4a0/0x4a0
[  482.060475][ T7697]  ? netlink_ack+0x1380/0x1380
[  482.065457][ T7697]  ? lock_sync+0x190/0x190
[  482.070273][ T7697]  ? netlink_deliver_tap+0x1a0/0xd00
[  482.075625][ T7697]  ? _copy_from_iter+0x2c1/0x10f0
[  482.081467][ T7697]  netlink_unicast+0x53b/0x810
[  482.086442][ T7697]  ? netlink_attachskb+0x880/0x880
[  482.091995][ T7697]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  482.097957][ T7697]  ? __phys_addr_symbol+0x30/0x70
[  482.103001][ T7697]  ? __check_object_size+0x323/0x730
[  482.108386][ T7697]  netlink_sendmsg+0x93c/0xe40
[  482.113689][ T7697]  ? netlink_unicast+0x810/0x810
[  482.118924][ T7697]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  482.124644][ T7697]  ? netlink_unicast+0x810/0x810
[  482.129976][ T7697]  __sock_sendmsg+0xd5/0x180
[  482.134675][ T7697]  ____sys_sendmsg+0x6ac/0x940
[  482.139560][ T7697]  ? copy_msghdr_from_user+0x10b/0x160
[  482.145073][ T7697]  ? kernel_sendmsg+0x50/0x50
[  482.150313][ T7697]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  482.157109][ T7697]  ___sys_sendmsg+0x135/0x1d0
[  482.162419][ T7697]  ? do_recvmmsg+0x740/0x740
[  482.167632][ T7697]  ? find_held_lock+0x2d/0x110
[  482.172966][ T7697]  ? preempt_count_sub+0x160/0x160
[  482.178551][ T7697]  ? __fget_light+0x1fc/0x260
[  482.183524][ T7697]  __sys_sendmsg+0x117/0x1e0
[  482.188130][ T7697]  ? __sys_sendmsg_sock+0x30/0x30
[  482.193879][ T7697]  ? syscall_enter_from_user_mode+0x7f/0x120
[  482.199969][ T7697]  do_syscall_64+0x40/0x110
[  482.204750][ T7697]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  482.211097][ T7697] RIP: 0033:0x7fb700fd30b9
[  482.215707][ T7697] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  482.236759][ T7697] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  482.246585][ T7697] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  482.254648][ T7697] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  482.262886][ T7697] RBP: 0000000000075366 R08: 0000000000000000 R09: 0000000000000006
[  482.271412][ T7697] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  482.279490][ T7697] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  482.290266][ T7697]  </TASK>
[  482.299464][ T7697] kobject: kobject_add_internal failed for lapb10000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  482.335260][ T7698] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  482.356749][ T7698] sysfs: cannot create duplicate filename '/devices/virtual/net/bpq100000000000'
[  482.367510][ T7698] CPU: 1 PID: 7698 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  482.378552][ T7698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  482.388967][ T7698] Call Trace:
[  482.392243][ T7698]  <TASK>
[  482.395668][ T7698]  dump_stack_lvl+0x125/0x1b0
[  482.400401][ T7698]  sysfs_warn_dup+0x7f/0xa0
[  482.405095][ T7698]  sysfs_create_dir_ns+0x249/0x2b0
[  482.410694][ T7698]  ? sysfs_create_mount_point+0xb0/0xb0
[  482.416249][ T7698]  ? spin_bug+0x1d0/0x1d0
[  482.420660][ T7698]  ? net_namespace+0x12/0x40
[  482.425347][ T7698]  ? device_namespace+0x8d/0xc0
[  482.430642][ T7698]  kobject_add_internal+0x2c8/0x970
[  482.436107][ T7698]  kobject_add+0x16f/0x240
[  482.440543][ T7698]  ? kset_create_and_add+0x190/0x190
[  482.446031][ T7698]  ? do_raw_spin_unlock+0x173/0x230
[  482.451514][ T7698]  ? kobject_put+0xbe/0x440
[  482.456112][ T7698]  ? device_add+0xc35/0x1aa0
[  482.460889][ T7698]  device_add+0x289/0x1aa0
[  482.465481][ T7698]  ? device_initialize+0x510/0x510
[  482.471067][ T7698]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  482.478040][ T7698]  ? __init_waitqueue_head+0xca/0x150
[  482.483511][ T7698]  netdev_register_kobject+0x183/0x3f0
[  482.488994][ T7698]  register_netdevice+0xbe6/0x14b0
[  482.494320][ T7698]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  482.500328][ T7698]  ? alloc_netdev_mqs+0xee6/0x1290
[  482.505524][ T7698]  bpq_device_event+0x39e/0xaf0
[  482.510638][ T7698]  ? team_device_event+0x219/0x750
[  482.515754][ T7698]  notifier_call_chain+0xb6/0x3b0
[  482.520871][ T7698]  ? bpq_seq_stop+0xb0/0xb0
[  482.525399][ T7698]  call_netdevice_notifiers_info+0xbe/0x130
[  482.531482][ T7698]  __dev_notify_flags+0x12d/0x2e0
[  482.536844][ T7698]  ? dev_change_name+0x800/0x800
[  482.541790][ T7698]  ? dev_set_allmulti+0x30/0x30
[  482.546895][ T7698]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  482.552872][ T7698]  ? validate_linkmsg+0x6fc/0x9c0
[  482.558069][ T7698]  rtnl_configure_link+0x1b3/0x260
[  482.563521][ T7698]  ? br_dev_newlink+0xd3/0x110
[  482.568802][ T7698]  __rtnl_newlink+0x11a7/0x1930
[  482.573770][ T7698]  ? rtnl_link_unregister+0x260/0x260
[  482.579243][ T7698]  rtnl_newlink+0x67/0xa0
[  482.583655][ T7698]  ? __rtnl_newlink+0x1930/0x1930
[  482.588691][ T7698]  rtnetlink_rcv_msg+0x3c7/0xe00
[  482.593895][ T7698]  ? rtnl_fill_vf+0x4a0/0x4a0
[  482.598656][ T7698]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  482.605335][ T7698]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  482.611875][ T7698]  netlink_rcv_skb+0x16b/0x440
[  482.617035][ T7698]  ? rtnl_fill_vf+0x4a0/0x4a0
[  482.621905][ T7698]  ? netlink_ack+0x1380/0x1380
[  482.626683][ T7698]  ? lock_sync+0x190/0x190
[  482.631521][ T7698]  ? netlink_deliver_tap+0x1a0/0xd00
[  482.637020][ T7698]  ? _copy_from_iter+0x2c1/0x10f0
[  482.642122][ T7698]  netlink_unicast+0x53b/0x810
[  482.647123][ T7698]  ? netlink_attachskb+0x880/0x880
[  482.652523][ T7698]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  482.658635][ T7698]  ? __phys_addr_symbol+0x30/0x70
[  482.663774][ T7698]  ? __check_object_size+0x323/0x730
[  482.669154][ T7698]  netlink_sendmsg+0x93c/0xe40
[  482.674023][ T7698]  ? netlink_unicast+0x810/0x810
[  482.679428][ T7698]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  482.684904][ T7698]  ? netlink_unicast+0x810/0x810
[  482.690509][ T7698]  __sock_sendmsg+0xd5/0x180
[  482.695397][ T7698]  ____sys_sendmsg+0x6ac/0x940
[  482.700458][ T7698]  ? copy_msghdr_from_user+0x10b/0x160
[  482.706401][ T7698]  ? kernel_sendmsg+0x50/0x50
[  482.711668][ T7698]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  482.717932][ T7698]  ___sys_sendmsg+0x135/0x1d0
[  482.722613][ T7698]  ? do_recvmmsg+0x740/0x740
[  482.727811][ T7698]  ? find_held_lock+0x2d/0x110
[  482.732701][ T7698]  ? preempt_count_sub+0x160/0x160
[  482.738126][ T7698]  ? __fget_light+0x1fc/0x260
[  482.743082][ T7698]  __sys_sendmsg+0x117/0x1e0
[  482.747774][ T7698]  ? __sys_sendmsg_sock+0x30/0x30
[  482.753180][ T7698]  ? syscall_enter_from_user_mode+0x7f/0x120
[  482.759568][ T7698]  do_syscall_64+0x40/0x110
[  482.764178][ T7698]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  482.770463][ T7698] RIP: 0033:0x7fb700fd30b9
[  482.774972][ T7698] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  482.796335][ T7698] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  482.805092][ T7698] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  482.813316][ T7698] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  482.822355][ T7698] RBP: 00000000000757af R08: 0000000000000000 R09: 0000000000000006
[  482.831338][ T7698] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  482.840347][ T7698] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  482.851738][ T7698]  </TASK>
[  482.868303][ T7698] kobject: kobject_add_internal failed for bpq100000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  482.885129][ T7698] sysfs: cannot create duplicate filename '/devices/virtual/net/lapb10000000000'
[  482.895114][ T7698] CPU: 0 PID: 7698 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  482.906080][ T7698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  482.916663][ T7698] Call Trace:
[  482.919985][ T7698]  <TASK>
[  482.923036][ T7698]  dump_stack_lvl+0x125/0x1b0
[  482.928775][ T7698]  sysfs_warn_dup+0x7f/0xa0
[  482.933740][ T7698]  sysfs_create_dir_ns+0x249/0x2b0
[  482.939771][ T7698]  ? sysfs_create_mount_point+0xb0/0xb0
[  482.945864][ T7698]  ? spin_bug+0x1d0/0x1d0
[  482.950582][ T7698]  ? net_namespace+0x12/0x40
[  482.955471][ T7698]  ? device_namespace+0x8d/0xc0
[  482.960569][ T7698]  kobject_add_internal+0x2c8/0x970
[  482.966506][ T7698]  kobject_add+0x16f/0x240
[  482.971313][ T7698]  ? kset_create_and_add+0x190/0x190
[  482.977947][ T7698]  ? do_raw_spin_unlock+0x173/0x230
[  482.983520][ T7698]  ? kobject_put+0xbe/0x440
[  482.988486][ T7698]  ? device_add+0xc35/0x1aa0
[  482.993428][ T7698]  device_add+0x289/0x1aa0
[  482.998050][ T7698]  ? device_initialize+0x510/0x510
[  483.003453][ T7698]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  483.010610][ T7698]  ? __init_waitqueue_head+0xca/0x150
[  483.016199][ T7698]  netdev_register_kobject+0x183/0x3f0
[  483.021810][ T7698]  register_netdevice+0xbe6/0x14b0
[  483.027060][ T7698]  ? lockdep_hardirqs_on+0x7d/0x110
[  483.032489][ T7698]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  483.038530][ T7698]  ? lapbeth_setup+0x170/0x170
[  483.043525][ T7698]  lapbeth_device_event+0x5b8/0xd40
[  483.048912][ T7698]  notifier_call_chain+0xb6/0x3b0
[  483.054142][ T7698]  ? lapbeth_xmit+0x290/0x290
[  483.058839][ T7698]  call_netdevice_notifiers_info+0xbe/0x130
[  483.064935][ T7698]  __dev_notify_flags+0x12d/0x2e0
[  483.070218][ T7698]  ? dev_change_name+0x800/0x800
[  483.075636][ T7698]  ? dev_set_allmulti+0x30/0x30
[  483.080618][ T7698]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  483.087156][ T7698]  ? validate_linkmsg+0x6fc/0x9c0
[  483.092246][ T7698]  rtnl_configure_link+0x1b3/0x260
[  483.097770][ T7698]  ? br_dev_newlink+0xd3/0x110
[  483.102794][ T7698]  __rtnl_newlink+0x11a7/0x1930
[  483.108041][ T7698]  ? rtnl_link_unregister+0x260/0x260
[  483.113633][ T7698]  rtnl_newlink+0x67/0xa0
[  483.118446][ T7698]  ? __rtnl_newlink+0x1930/0x1930
[  483.123734][ T7698]  rtnetlink_rcv_msg+0x3c7/0xe00
[  483.129160][ T7698]  ? rtnl_fill_vf+0x4a0/0x4a0
[  483.134185][ T7698]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  483.140433][ T7698]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  483.147084][ T7698]  netlink_rcv_skb+0x16b/0x440
[  483.152233][ T7698]  ? rtnl_fill_vf+0x4a0/0x4a0
[  483.157160][ T7698]  ? netlink_ack+0x1380/0x1380
[  483.162307][ T7698]  ? lock_sync+0x190/0x190
[  483.166859][ T7698]  ? netlink_deliver_tap+0x1a0/0xd00
[  483.172250][ T7698]  ? _copy_from_iter+0x2c1/0x10f0
[  483.177416][ T7698]  netlink_unicast+0x53b/0x810
[  483.182469][ T7698]  ? netlink_attachskb+0x880/0x880
[  483.187791][ T7698]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  483.194069][ T7698]  ? __phys_addr_symbol+0x30/0x70
[  483.199326][ T7698]  ? __check_object_size+0x323/0x730
[  483.205041][ T7698]  netlink_sendmsg+0x93c/0xe40
[  483.210407][ T7698]  ? netlink_unicast+0x810/0x810
[  483.215809][ T7698]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  483.221561][ T7698]  ? netlink_unicast+0x810/0x810
[  483.227383][ T7698]  __sock_sendmsg+0xd5/0x180
[  483.232643][ T7698]  ____sys_sendmsg+0x6ac/0x940
[  483.237530][ T7698]  ? copy_msghdr_from_user+0x10b/0x160
[  483.243226][ T7698]  ? kernel_sendmsg+0x50/0x50
[  483.247939][ T7698]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  483.253979][ T7698]  ___sys_sendmsg+0x135/0x1d0
[  483.259229][ T7698]  ? do_recvmmsg+0x740/0x740
[  483.263870][ T7698]  ? find_held_lock+0x2d/0x110
[  483.268986][ T7698]  ? preempt_count_sub+0x160/0x160
[  483.275493][ T7698]  ? __fget_light+0x1fc/0x260
[  483.280241][ T7698]  __sys_sendmsg+0x117/0x1e0
[  483.285026][ T7698]  ? __sys_sendmsg_sock+0x30/0x30
[  483.290100][ T7698]  ? syscall_enter_from_user_mode+0x7f/0x120
[  483.296914][ T7698]  do_syscall_64+0x40/0x110
[  483.301697][ T7698]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  483.307973][ T7698] RIP: 0033:0x7fb700fd30b9
[  483.312777][ T7698] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  483.333459][ T7698] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  483.342547][ T7698] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  483.351256][ T7698] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  483.360300][ T7698] RBP: 00000000000757af R08: 0000000000000000 R09: 0000000000000006
[  483.369412][ T7698] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  483.378004][ T7698] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  483.386439][ T7698]  </TASK>
[  483.390521][ T7698] kobject: kobject_add_internal failed for lapb10000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  483.422214][ T7699] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  483.445792][ T7699] sysfs: cannot create duplicate filename '/devices/virtual/net/bpq100000000000'
[  483.456729][ T7699] CPU: 1 PID: 7699 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  483.467073][ T7699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  483.477532][ T7699] Call Trace:
[  483.480810][ T7699]  <TASK>
[  483.483846][ T7699]  dump_stack_lvl+0x125/0x1b0
[  483.489318][ T7699]  sysfs_warn_dup+0x7f/0xa0
[  483.494012][ T7699]  sysfs_create_dir_ns+0x249/0x2b0
[  483.500267][ T7699]  ? sysfs_create_mount_point+0xb0/0xb0
[  483.506516][ T7699]  ? spin_bug+0x1d0/0x1d0
[  483.511255][ T7699]  ? net_namespace+0x12/0x40
[  483.516043][ T7699]  ? device_namespace+0x8d/0xc0
[  483.521267][ T7699]  kobject_add_internal+0x2c8/0x970
[  483.526867][ T7699]  kobject_add+0x16f/0x240
[  483.531484][ T7699]  ? kset_create_and_add+0x190/0x190
[  483.537144][ T7699]  ? do_raw_spin_unlock+0x173/0x230
[  483.543057][ T7699]  ? kobject_put+0xbe/0x440
[  483.548089][ T7699]  ? device_add+0xc35/0x1aa0
[  483.552703][ T7699]  device_add+0x289/0x1aa0
[  483.557598][ T7699]  ? device_initialize+0x510/0x510
[  483.562997][ T7699]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  483.570765][ T7699]  ? __init_waitqueue_head+0xca/0x150
[  483.577043][ T7699]  netdev_register_kobject+0x183/0x3f0
[  483.582645][ T7699]  register_netdevice+0xbe6/0x14b0
[  483.587804][ T7699]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  483.593837][ T7699]  ? alloc_netdev_mqs+0xee6/0x1290
[  483.600049][ T7699]  bpq_device_event+0x39e/0xaf0
[  483.605194][ T7699]  ? team_device_event+0x219/0x750
[  483.610329][ T7699]  notifier_call_chain+0xb6/0x3b0
[  483.615365][ T7699]  ? bpq_seq_stop+0xb0/0xb0
[  483.620179][ T7699]  call_netdevice_notifiers_info+0xbe/0x130
[  483.626433][ T7699]  __dev_notify_flags+0x12d/0x2e0
[  483.631477][ T7699]  ? dev_change_name+0x800/0x800
[  483.636735][ T7699]  ? dev_set_allmulti+0x30/0x30
[  483.641778][ T7699]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  483.647857][ T7699]  ? validate_linkmsg+0x6fc/0x9c0
[  483.653080][ T7699]  rtnl_configure_link+0x1b3/0x260
[  483.658484][ T7699]  ? br_dev_newlink+0xd3/0x110
[  483.663532][ T7699]  __rtnl_newlink+0x11a7/0x1930
[  483.668598][ T7699]  ? rtnl_link_unregister+0x260/0x260
[  483.674395][ T7699]  rtnl_newlink+0x67/0xa0
[  483.678729][ T7699]  ? __rtnl_newlink+0x1930/0x1930
[  483.683933][ T7699]  rtnetlink_rcv_msg+0x3c7/0xe00
[  483.689132][ T7699]  ? rtnl_fill_vf+0x4a0/0x4a0
[  483.693926][ T7699]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  483.699944][ T7699]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  483.706073][ T7699]  netlink_rcv_skb+0x16b/0x440
[  483.710903][ T7699]  ? rtnl_fill_vf+0x4a0/0x4a0
[  483.715813][ T7699]  ? netlink_ack+0x1380/0x1380
[  483.720649][ T7699]  ? lock_sync+0x190/0x190
[  483.725291][ T7699]  ? netlink_deliver_tap+0x1a0/0xd00
[  483.730775][ T7699]  ? _copy_from_iter+0x2c1/0x10f0
[  483.736254][ T7699]  netlink_unicast+0x53b/0x810
[  483.741037][ T7699]  ? netlink_attachskb+0x880/0x880
[  483.746631][ T7699]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  483.753074][ T7699]  ? __phys_addr_symbol+0x30/0x70
[  483.758126][ T7699]  ? __check_object_size+0x323/0x730
[  483.764403][ T7699]  netlink_sendmsg+0x93c/0xe40
[  483.769981][ T7699]  ? netlink_unicast+0x810/0x810
[  483.775632][ T7699]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  483.781587][ T7699]  ? netlink_unicast+0x810/0x810
[  483.786908][ T7699]  __sock_sendmsg+0xd5/0x180
[  483.791949][ T7699]  ____sys_sendmsg+0x6ac/0x940
[  483.796876][ T7699]  ? copy_msghdr_from_user+0x10b/0x160
[  483.802707][ T7699]  ? kernel_sendmsg+0x50/0x50
[  483.807487][ T7699]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  483.813777][ T7699]  ___sys_sendmsg+0x135/0x1d0
[  483.818787][ T7699]  ? do_recvmmsg+0x740/0x740
[  483.824300][ T7699]  ? find_held_lock+0x2d/0x110
[  483.829538][ T7699]  ? preempt_count_sub+0x160/0x160
[  483.835024][ T7699]  ? __fget_light+0x1fc/0x260
[  483.840247][ T7699]  __sys_sendmsg+0x117/0x1e0
[  483.845372][ T7699]  ? __sys_sendmsg_sock+0x30/0x30
[  483.850768][ T7699]  ? syscall_enter_from_user_mode+0x7f/0x120
[  483.857214][ T7699]  do_syscall_64+0x40/0x110
[  483.861811][ T7699]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  483.868006][ T7699] RIP: 0033:0x7fb700fd30b9
[  483.872601][ T7699] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  483.892657][ T7699] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  483.901426][ T7699] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  483.909605][ T7699] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  483.917780][ T7699] RBP: 0000000000075bef R08: 0000000000000000 R09: 0000000000000006
[  483.926030][ T7699] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  483.934268][ T7699] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  483.942878][ T7699]  </TASK>
[  483.954991][ T7699] kobject: kobject_add_internal failed for bpq100000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  483.971366][ T7699] sysfs: cannot create duplicate filename '/devices/virtual/net/lapb10000000000'
[  483.981410][ T7699] CPU: 0 PID: 7699 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  483.991613][ T7699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  484.002311][ T7699] Call Trace:
[  484.005586][ T7699]  <TASK>
[  484.008614][ T7699]  dump_stack_lvl+0x125/0x1b0
[  484.013402][ T7699]  sysfs_warn_dup+0x7f/0xa0
[  484.018008][ T7699]  sysfs_create_dir_ns+0x249/0x2b0
[  484.023497][ T7699]  ? sysfs_create_mount_point+0xb0/0xb0
[  484.029236][ T7699]  ? spin_bug+0x1d0/0x1d0
[  484.033737][ T7699]  ? net_namespace+0x12/0x40
[  484.038507][ T7699]  ? device_namespace+0x8d/0xc0
[  484.043491][ T7699]  kobject_add_internal+0x2c8/0x970
[  484.049058][ T7699]  kobject_add+0x16f/0x240
[  484.053477][ T7699]  ? kset_create_and_add+0x190/0x190
[  484.059214][ T7699]  ? do_raw_spin_unlock+0x173/0x230
[  484.064418][ T7699]  ? kobject_put+0xbe/0x440
[  484.069213][ T7699]  ? device_add+0xc35/0x1aa0
[  484.073820][ T7699]  device_add+0x289/0x1aa0
[  484.078250][ T7699]  ? device_initialize+0x510/0x510
[  484.083379][ T7699]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  484.091183][ T7699]  ? __init_waitqueue_head+0xca/0x150
[  484.096564][ T7699]  netdev_register_kobject+0x183/0x3f0
[  484.102028][ T7699]  register_netdevice+0xbe6/0x14b0
[  484.107508][ T7699]  ? lockdep_hardirqs_on+0x7d/0x110
[  484.112824][ T7699]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  484.119013][ T7699]  ? lapbeth_setup+0x170/0x170
[  484.123977][ T7699]  lapbeth_device_event+0x5b8/0xd40
[  484.129663][ T7699]  notifier_call_chain+0xb6/0x3b0
[  484.134973][ T7699]  ? lapbeth_xmit+0x290/0x290
[  484.140464][ T7699]  call_netdevice_notifiers_info+0xbe/0x130
[  484.146860][ T7699]  __dev_notify_flags+0x12d/0x2e0
[  484.152437][ T7699]  ? dev_change_name+0x800/0x800
[  484.158703][ T7699]  ? dev_set_allmulti+0x30/0x30
[  484.163762][ T7699]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  484.170103][ T7699]  ? validate_linkmsg+0x6fc/0x9c0
[  484.175138][ T7699]  rtnl_configure_link+0x1b3/0x260
[  484.180260][ T7699]  ? br_dev_newlink+0xd3/0x110
[  484.185069][ T7699]  __rtnl_newlink+0x11a7/0x1930
[  484.190033][ T7699]  ? rtnl_link_unregister+0x260/0x260
[  484.195642][ T7699]  rtnl_newlink+0x67/0xa0
[  484.200074][ T7699]  ? __rtnl_newlink+0x1930/0x1930
[  484.205651][ T7699]  rtnetlink_rcv_msg+0x3c7/0xe00
[  484.211023][ T7699]  ? rtnl_fill_vf+0x4a0/0x4a0
[  484.215935][ T7699]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  484.222148][ T7699]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  484.228694][ T7699]  netlink_rcv_skb+0x16b/0x440
[  484.233834][ T7699]  ? rtnl_fill_vf+0x4a0/0x4a0
[  484.238522][ T7699]  ? netlink_ack+0x1380/0x1380
[  484.243483][ T7699]  ? lock_sync+0x190/0x190
[  484.248109][ T7699]  ? netlink_deliver_tap+0x1a0/0xd00
[  484.253505][ T7699]  ? _copy_from_iter+0x2c1/0x10f0
[  484.258795][ T7699]  netlink_unicast+0x53b/0x810
[  484.264229][ T7699]  ? netlink_attachskb+0x880/0x880
[  484.270648][ T7699]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  484.276744][ T7699]  ? __phys_addr_symbol+0x30/0x70
[  484.282204][ T7699]  ? __check_object_size+0x323/0x730
[  484.287510][ T7699]  netlink_sendmsg+0x93c/0xe40
[  484.292454][ T7699]  ? netlink_unicast+0x810/0x810
[  484.297512][ T7699]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  484.303074][ T7699]  ? netlink_unicast+0x810/0x810
[  484.308139][ T7699]  __sock_sendmsg+0xd5/0x180
[  484.313126][ T7699]  ____sys_sendmsg+0x6ac/0x940
[  484.318008][ T7699]  ? copy_msghdr_from_user+0x10b/0x160
[  484.323577][ T7699]  ? kernel_sendmsg+0x50/0x50
[  484.328265][ T7699]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  484.334339][ T7699]  ___sys_sendmsg+0x135/0x1d0
[  484.339220][ T7699]  ? do_recvmmsg+0x740/0x740
[  484.344268][ T7699]  ? find_held_lock+0x2d/0x110
[  484.349095][ T7699]  ? preempt_count_sub+0x160/0x160
[  484.354241][ T7699]  ? __fget_light+0x1fc/0x260
[  484.358944][ T7699]  __sys_sendmsg+0x117/0x1e0
[  484.363642][ T7699]  ? __sys_sendmsg_sock+0x30/0x30
[  484.368874][ T7699]  ? syscall_enter_from_user_mode+0x7f/0x120
[  484.374967][ T7699]  do_syscall_64+0x40/0x110
[  484.379754][ T7699]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  484.385844][ T7699] RIP: 0033:0x7fb700fd30b9
[  484.390356][ T7699] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  484.410206][ T7699] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  484.418877][ T7699] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  484.427107][ T7699] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  484.435424][ T7699] RBP: 0000000000075bef R08: 0000000000000000 R09: 0000000000000006
[  484.443562][ T7699] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  484.451573][ T7699] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  484.460264][ T7699]  </TASK>
[  484.469287][ T7699] kobject: kobject_add_internal failed for lapb10000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  484.503594][ T7700] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  484.527080][ T7700] sysfs: cannot create duplicate filename '/devices/virtual/net/bpq100000000000'
[  484.537709][ T7700] CPU: 0 PID: 7700 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  484.548236][ T7700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  484.559084][ T7700] Call Trace:
[  484.562584][ T7700]  <TASK>
[  484.566069][ T7700]  dump_stack_lvl+0x125/0x1b0
[  484.570942][ T7700]  sysfs_warn_dup+0x7f/0xa0
[  484.575634][ T7700]  sysfs_create_dir_ns+0x249/0x2b0
[  484.580787][ T7700]  ? sysfs_create_mount_point+0xb0/0xb0
[  484.587576][ T7700]  ? spin_bug+0x1d0/0x1d0
[  484.592006][ T7700]  ? net_namespace+0x12/0x40
[  484.596779][ T7700]  ? device_namespace+0x8d/0xc0
[  484.601814][ T7700]  kobject_add_internal+0x2c8/0x970
[  484.607389][ T7700]  kobject_add+0x16f/0x240
[  484.612022][ T7700]  ? kset_create_and_add+0x190/0x190
[  484.617676][ T7700]  ? do_raw_spin_unlock+0x173/0x230
[  484.623215][ T7700]  ? kobject_put+0xbe/0x440
[  484.631245][ T7700]  ? device_add+0xc35/0x1aa0
[  484.636231][ T7700]  device_add+0x289/0x1aa0
[  484.641083][ T7700]  ? device_initialize+0x510/0x510
[  484.646627][ T7700]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  484.654214][ T7700]  ? __init_waitqueue_head+0xca/0x150
[  484.661465][ T7700]  netdev_register_kobject+0x183/0x3f0
[  484.668558][ T7700]  register_netdevice+0xbe6/0x14b0
[  484.673813][ T7700]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  484.679827][ T7700]  ? alloc_netdev_mqs+0xee6/0x1290
[  484.685128][ T7700]  bpq_device_event+0x39e/0xaf0
[  484.690188][ T7700]  ? team_device_event+0x219/0x750
[  484.695908][ T7700]  notifier_call_chain+0xb6/0x3b0
[  484.701152][ T7700]  ? bpq_seq_stop+0xb0/0xb0
[  484.705668][ T7700]  call_netdevice_notifiers_info+0xbe/0x130
[  484.711586][ T7700]  __dev_notify_flags+0x12d/0x2e0
[  484.717063][ T7700]  ? dev_change_name+0x800/0x800
[  484.722031][ T7700]  ? dev_set_allmulti+0x30/0x30
[  484.726896][ T7700]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  484.733498][ T7700]  ? validate_linkmsg+0x6fc/0x9c0
[  484.738623][ T7700]  rtnl_configure_link+0x1b3/0x260
[  484.744355][ T7700]  ? br_dev_newlink+0xd3/0x110
[  484.749757][ T7700]  __rtnl_newlink+0x11a7/0x1930
[  484.754721][ T7700]  ? rtnl_link_unregister+0x260/0x260
[  484.760197][ T7700]  rtnl_newlink+0x67/0xa0
[  484.764923][ T7700]  ? __rtnl_newlink+0x1930/0x1930
[  484.770776][ T7700]  rtnetlink_rcv_msg+0x3c7/0xe00
[  484.775943][ T7700]  ? rtnl_fill_vf+0x4a0/0x4a0
[  484.780631][ T7700]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  484.786672][ T7700]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  484.793168][ T7700]  netlink_rcv_skb+0x16b/0x440
[  484.798213][ T7700]  ? rtnl_fill_vf+0x4a0/0x4a0
[  484.802935][ T7700]  ? netlink_ack+0x1380/0x1380
[  484.807823][ T7700]  ? lock_sync+0x190/0x190
[  484.812288][ T7700]  ? netlink_deliver_tap+0x1a0/0xd00
[  484.818129][ T7700]  ? _copy_from_iter+0x2c1/0x10f0
[  484.823710][ T7700]  netlink_unicast+0x53b/0x810
[  484.828520][ T7700]  ? netlink_attachskb+0x880/0x880
[  484.833833][ T7700]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  484.839890][ T7700]  ? __phys_addr_symbol+0x30/0x70
[  484.844967][ T7700]  ? __check_object_size+0x323/0x730
[  484.850372][ T7700]  netlink_sendmsg+0x93c/0xe40
[  484.855812][ T7700]  ? netlink_unicast+0x810/0x810
[  484.861092][ T7700]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  484.866773][ T7700]  ? netlink_unicast+0x810/0x810
[  484.872260][ T7700]  __sock_sendmsg+0xd5/0x180
[  484.876962][ T7700]  ____sys_sendmsg+0x6ac/0x940
[  484.881777][ T7700]  ? copy_msghdr_from_user+0x10b/0x160
[  484.887692][ T7700]  ? kernel_sendmsg+0x50/0x50
[  484.892480][ T7700]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  484.898669][ T7700]  ___sys_sendmsg+0x135/0x1d0
[  484.903542][ T7700]  ? do_recvmmsg+0x740/0x740
[  484.908243][ T7700]  ? find_held_lock+0x2d/0x110
[  484.913202][ T7700]  ? preempt_count_sub+0x160/0x160
[  484.918522][ T7700]  ? __fget_light+0x1fc/0x260
[  484.923653][ T7700]  __sys_sendmsg+0x117/0x1e0
[  484.928609][ T7700]  ? __sys_sendmsg_sock+0x30/0x30
[  484.934168][ T7700]  ? syscall_enter_from_user_mode+0x7f/0x120
[  484.940416][ T7700]  do_syscall_64+0x40/0x110
[  484.945363][ T7700]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  484.951881][ T7700] RIP: 0033:0x7fb700fd30b9
[  484.956413][ T7700] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  484.977186][ T7700] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  484.985980][ T7700] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  484.994319][ T7700] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  485.002565][ T7700] RBP: 0000000000076031 R08: 0000000000000000 R09: 0000000000000006
[  485.010906][ T7700] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  485.018975][ T7700] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  485.027221][ T7700]  </TASK>
[  485.034683][ T7700] kobject: kobject_add_internal failed for bpq100000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  485.050397][ T7700] sysfs: cannot create duplicate filename '/devices/virtual/net/lapb10000000000'
[  485.059766][ T7700] CPU: 0 PID: 7700 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  485.069973][ T7700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  485.080298][ T7700] Call Trace:
[  485.084121][ T7700]  <TASK>
[  485.087055][ T7700]  dump_stack_lvl+0x125/0x1b0
[  485.091756][ T7700]  sysfs_warn_dup+0x7f/0xa0
[  485.096457][ T7700]  sysfs_create_dir_ns+0x249/0x2b0
[  485.101688][ T7700]  ? sysfs_create_mount_point+0xb0/0xb0
[  485.107411][ T7700]  ? spin_bug+0x1d0/0x1d0
[  485.111731][ T7700]  ? net_namespace+0x12/0x40
[  485.116406][ T7700]  ? device_namespace+0x8d/0xc0
[  485.121433][ T7700]  kobject_add_internal+0x2c8/0x970
[  485.126806][ T7700]  kobject_add+0x16f/0x240
[  485.131241][ T7700]  ? kset_create_and_add+0x190/0x190
[  485.136624][ T7700]  ? do_raw_spin_unlock+0x173/0x230
[  485.142055][ T7700]  ? kobject_put+0xbe/0x440
[  485.147035][ T7700]  ? device_add+0xc35/0x1aa0
[  485.151900][ T7700]  device_add+0x289/0x1aa0
[  485.156411][ T7700]  ? device_initialize+0x510/0x510
[  485.161742][ T7700]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  485.168715][ T7700]  ? __init_waitqueue_head+0xca/0x150
[  485.174393][ T7700]  netdev_register_kobject+0x183/0x3f0
[  485.179870][ T7700]  register_netdevice+0xbe6/0x14b0
[  485.185068][ T7700]  ? lockdep_hardirqs_on+0x7d/0x110
[  485.190648][ T7700]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  485.196562][ T7700]  ? lapbeth_setup+0x170/0x170
[  485.201948][ T7700]  lapbeth_device_event+0x5b8/0xd40
[  485.207157][ T7700]  notifier_call_chain+0xb6/0x3b0
[  485.212528][ T7700]  ? lapbeth_xmit+0x290/0x290
[  485.217530][ T7700]  call_netdevice_notifiers_info+0xbe/0x130
[  485.223798][ T7700]  __dev_notify_flags+0x12d/0x2e0
[  485.229208][ T7700]  ? dev_change_name+0x800/0x800
[  485.234973][ T7700]  ? dev_set_allmulti+0x30/0x30
[  485.239913][ T7700]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  485.245815][ T7700]  ? validate_linkmsg+0x6fc/0x9c0
[  485.250970][ T7700]  rtnl_configure_link+0x1b3/0x260
[  485.256312][ T7700]  ? br_dev_newlink+0xd3/0x110
[  485.261278][ T7700]  __rtnl_newlink+0x11a7/0x1930
[  485.266192][ T7700]  ? rtnl_link_unregister+0x260/0x260
[  485.271931][ T7700]  rtnl_newlink+0x67/0xa0
[  485.276266][ T7700]  ? __rtnl_newlink+0x1930/0x1930
[  485.281290][ T7700]  rtnetlink_rcv_msg+0x3c7/0xe00
[  485.286363][ T7700]  ? rtnl_fill_vf+0x4a0/0x4a0
[  485.291098][ T7700]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  485.297700][ T7700]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  485.303969][ T7700]  netlink_rcv_skb+0x16b/0x440
[  485.308970][ T7700]  ? rtnl_fill_vf+0x4a0/0x4a0
[  485.313825][ T7700]  ? netlink_ack+0x1380/0x1380
[  485.318592][ T7700]  ? lock_sync+0x190/0x190
[  485.323368][ T7700]  ? netlink_deliver_tap+0x1a0/0xd00
[  485.328754][ T7700]  ? _copy_from_iter+0x2c1/0x10f0
[  485.333782][ T7700]  netlink_unicast+0x53b/0x810
[  485.338631][ T7700]  ? netlink_attachskb+0x880/0x880
[  485.343828][ T7700]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  485.349742][ T7700]  ? __phys_addr_symbol+0x30/0x70
[  485.354780][ T7700]  ? __check_object_size+0x323/0x730
[  485.360683][ T7700]  netlink_sendmsg+0x93c/0xe40
[  485.365646][ T7700]  ? netlink_unicast+0x810/0x810
[  485.370606][ T7700]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  485.375897][ T7700]  ? netlink_unicast+0x810/0x810
[  485.380847][ T7700]  __sock_sendmsg+0xd5/0x180
[  485.385443][ T7700]  ____sys_sendmsg+0x6ac/0x940
[  485.390226][ T7700]  ? copy_msghdr_from_user+0x10b/0x160
[  485.395804][ T7700]  ? kernel_sendmsg+0x50/0x50
[  485.400743][ T7700]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  485.406829][ T7700]  ___sys_sendmsg+0x135/0x1d0
[  485.411658][ T7700]  ? do_recvmmsg+0x740/0x740
[  485.416244][ T7700]  ? find_held_lock+0x2d/0x110
[  485.421063][ T7700]  ? preempt_count_sub+0x160/0x160
[  485.426274][ T7700]  ? __fget_light+0x1fc/0x260
[  485.431095][ T7700]  __sys_sendmsg+0x117/0x1e0
[  485.435866][ T7700]  ? __sys_sendmsg_sock+0x30/0x30
[  485.441070][ T7700]  ? syscall_enter_from_user_mode+0x7f/0x120
[  485.447249][ T7700]  do_syscall_64+0x40/0x110
[  485.452002][ T7700]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  485.458532][ T7700] RIP: 0033:0x7fb700fd30b9
[  485.463498][ T7700] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  485.484759][ T7700] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  485.493619][ T7700] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  485.502172][ T7700] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  485.510421][ T7700] RBP: 0000000000076031 R08: 0000000000000000 R09: 0000000000000006
[  485.518990][ T7700] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  485.527760][ T7700] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  485.535778][ T7700]  </TASK>
[  485.540570][ T7700] kobject: kobject_add_internal failed for lapb10000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  485.569711][ T7701] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  485.592053][ T7701] sysfs: cannot create duplicate filename '/devices/virtual/net/bpq100000000000'
[  485.601675][ T7701] CPU: 0 PID: 7701 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  485.612384][ T7701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  485.622941][ T7701] Call Trace:
[  485.626631][ T7701]  <TASK>
[  485.629905][ T7701]  dump_stack_lvl+0x125/0x1b0
[  485.634624][ T7701]  sysfs_warn_dup+0x7f/0xa0
[  485.639845][ T7701]  sysfs_create_dir_ns+0x249/0x2b0
[  485.645049][ T7701]  ? sysfs_create_mount_point+0xb0/0xb0
[  485.650975][ T7701]  ? spin_bug+0x1d0/0x1d0
[  485.655356][ T7701]  ? net_namespace+0x12/0x40
[  485.660067][ T7701]  ? device_namespace+0x8d/0xc0
[  485.664939][ T7701]  kobject_add_internal+0x2c8/0x970
[  485.670332][ T7701]  kobject_add+0x16f/0x240
[  485.674854][ T7701]  ? kset_create_and_add+0x190/0x190
[  485.680416][ T7701]  ? do_raw_spin_unlock+0x173/0x230
[  485.685726][ T7701]  ? kobject_put+0xbe/0x440
[  485.690275][ T7701]  ? device_add+0xc35/0x1aa0
[  485.695081][ T7701]  device_add+0x289/0x1aa0
[  485.699698][ T7701]  ? device_initialize+0x510/0x510
[  485.705019][ T7701]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  485.711984][ T7701]  ? __init_waitqueue_head+0xca/0x150
[  485.717377][ T7701]  netdev_register_kobject+0x183/0x3f0
[  485.723041][ T7701]  register_netdevice+0xbe6/0x14b0
[  485.728429][ T7701]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  485.734334][ T7701]  ? alloc_netdev_mqs+0xee6/0x1290
[  485.739457][ T7701]  bpq_device_event+0x39e/0xaf0
[  485.744333][ T7701]  ? team_device_event+0x219/0x750
[  485.749450][ T7701]  notifier_call_chain+0xb6/0x3b0
[  485.754830][ T7701]  ? bpq_seq_stop+0xb0/0xb0
[  485.759434][ T7701]  call_netdevice_notifiers_info+0xbe/0x130
[  485.765338][ T7701]  __dev_notify_flags+0x12d/0x2e0
[  485.770636][ T7701]  ? dev_change_name+0x800/0x800
[  485.775914][ T7701]  ? dev_set_allmulti+0x30/0x30
[  485.780857][ T7701]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  485.786760][ T7701]  ? validate_linkmsg+0x6fc/0x9c0
[  485.791880][ T7701]  rtnl_configure_link+0x1b3/0x260
[  485.797084][ T7701]  ? br_dev_newlink+0xd3/0x110
[  485.802035][ T7701]  __rtnl_newlink+0x11a7/0x1930
[  485.807039][ T7701]  ? rtnl_link_unregister+0x260/0x260
[  485.812616][ T7701]  rtnl_newlink+0x67/0xa0
[  485.817140][ T7701]  ? __rtnl_newlink+0x1930/0x1930
[  485.822256][ T7701]  rtnetlink_rcv_msg+0x3c7/0xe00
[  485.827465][ T7701]  ? rtnl_fill_vf+0x4a0/0x4a0
[  485.833461][ T7701]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  485.839579][ T7701]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  485.845749][ T7701]  netlink_rcv_skb+0x16b/0x440
[  485.850797][ T7701]  ? rtnl_fill_vf+0x4a0/0x4a0
[  485.855594][ T7701]  ? netlink_ack+0x1380/0x1380
[  485.860375][ T7701]  ? lock_sync+0x190/0x190
[  485.864928][ T7701]  ? netlink_deliver_tap+0x1a0/0xd00
[  485.870568][ T7701]  ? _copy_from_iter+0x2c1/0x10f0
[  485.875693][ T7701]  netlink_unicast+0x53b/0x810
[  485.880472][ T7701]  ? netlink_attachskb+0x880/0x880
[  485.885804][ T7701]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  485.891704][ T7701]  ? __phys_addr_symbol+0x30/0x70
[  485.896829][ T7701]  ? __check_object_size+0x323/0x730
[  485.902216][ T7701]  netlink_sendmsg+0x93c/0xe40
[  485.906993][ T7701]  ? netlink_unicast+0x810/0x810
[  485.912463][ T7701]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  485.918105][ T7701]  ? netlink_unicast+0x810/0x810
[  485.923153][ T7701]  __sock_sendmsg+0xd5/0x180
[  485.928104][ T7701]  ____sys_sendmsg+0x6ac/0x940
[  485.933061][ T7701]  ? copy_msghdr_from_user+0x10b/0x160
[  485.939746][ T7701]  ? kernel_sendmsg+0x50/0x50
[  485.945063][ T7701]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  485.951260][ T7701]  ___sys_sendmsg+0x135/0x1d0
[  485.956246][ T7701]  ? do_recvmmsg+0x740/0x740
[  485.961291][ T7701]  ? find_held_lock+0x2d/0x110
[  485.966268][ T7701]  ? preempt_count_sub+0x160/0x160
[  485.972147][ T7701]  ? __fget_light+0x1fc/0x260
[  485.977457][ T7701]  __sys_sendmsg+0x117/0x1e0
[  485.982059][ T7701]  ? __sys_sendmsg_sock+0x30/0x30
[  485.987196][ T7701]  ? syscall_enter_from_user_mode+0x7f/0x120
[  485.993386][ T7701]  do_syscall_64+0x40/0x110
[  485.997997][ T7701]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  486.004005][ T7701] RIP: 0033:0x7fb700fd30b9
[  486.008514][ T7701] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  486.028406][ T7701] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  486.037474][ T7701] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  486.046060][ T7701] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  486.054165][ T7701] RBP: 000000000007646a R08: 0000000000000000 R09: 0000000000000006
[  486.062492][ T7701] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  486.071119][ T7701] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  486.079374][ T7701]  </TASK>
[  486.087880][ T7701] kobject: kobject_add_internal failed for bpq100000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  486.104347][ T7701] sysfs: cannot create duplicate filename '/devices/virtual/net/lapb10000000000'
[  486.114335][ T7701] CPU: 0 PID: 7701 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  486.125173][ T7701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  486.135815][ T7701] Call Trace:
[  486.139291][ T7701]  <TASK>
[  486.142589][ T7701]  dump_stack_lvl+0x125/0x1b0
[  486.147288][ T7701]  sysfs_warn_dup+0x7f/0xa0
[  486.152285][ T7701]  sysfs_create_dir_ns+0x249/0x2b0
[  486.157503][ T7701]  ? sysfs_create_mount_point+0xb0/0xb0
[  486.163362][ T7701]  ? spin_bug+0x1d0/0x1d0
[  486.167720][ T7701]  ? net_namespace+0x12/0x40
[  486.172422][ T7701]  ? device_namespace+0x8d/0xc0
[  486.177295][ T7701]  kobject_add_internal+0x2c8/0x970
[  486.182713][ T7701]  kobject_add+0x16f/0x240
[  486.187156][ T7701]  ? kset_create_and_add+0x190/0x190
[  486.192448][ T7701]  ? do_raw_spin_unlock+0x173/0x230
[  486.197653][ T7701]  ? kobject_put+0xbe/0x440
[  486.202174][ T7701]  ? device_add+0xc35/0x1aa0
[  486.206776][ T7701]  device_add+0x289/0x1aa0
[  486.211205][ T7701]  ? device_initialize+0x510/0x510
[  486.216409][ T7701]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  486.223517][ T7701]  ? __init_waitqueue_head+0xca/0x150
[  486.229624][ T7701]  netdev_register_kobject+0x183/0x3f0
[  486.235201][ T7701]  register_netdevice+0xbe6/0x14b0
[  486.240940][ T7701]  ? lockdep_hardirqs_on+0x7d/0x110
[  486.246355][ T7701]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  486.252306][ T7701]  ? lapbeth_setup+0x170/0x170
[  486.257449][ T7701]  lapbeth_device_event+0x5b8/0xd40
[  486.262844][ T7701]  notifier_call_chain+0xb6/0x3b0
[  486.267896][ T7701]  ? lapbeth_xmit+0x290/0x290
[  486.272851][ T7701]  call_netdevice_notifiers_info+0xbe/0x130
[  486.278841][ T7701]  __dev_notify_flags+0x12d/0x2e0
[  486.284151][ T7701]  ? dev_change_name+0x800/0x800
[  486.289623][ T7701]  ? dev_set_allmulti+0x30/0x30
[  486.294478][ T7701]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  486.301164][ T7701]  ? validate_linkmsg+0x6fc/0x9c0
[  486.306557][ T7701]  rtnl_configure_link+0x1b3/0x260
[  486.312110][ T7701]  ? br_dev_newlink+0xd3/0x110
[  486.316977][ T7701]  __rtnl_newlink+0x11a7/0x1930
[  486.321945][ T7701]  ? rtnl_link_unregister+0x260/0x260
[  486.327703][ T7701]  rtnl_newlink+0x67/0xa0
[  486.332041][ T7701]  ? __rtnl_newlink+0x1930/0x1930
[  486.337181][ T7701]  rtnetlink_rcv_msg+0x3c7/0xe00
[  486.342138][ T7701]  ? rtnl_fill_vf+0x4a0/0x4a0
[  486.347264][ T7701]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  486.353432][ T7701]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  486.359694][ T7701]  netlink_rcv_skb+0x16b/0x440
[  486.364649][ T7701]  ? rtnl_fill_vf+0x4a0/0x4a0
[  486.369513][ T7701]  ? netlink_ack+0x1380/0x1380
[  486.374475][ T7701]  ? lock_sync+0x190/0x190
[  486.379355][ T7701]  ? netlink_deliver_tap+0x1a0/0xd00
[  486.385075][ T7701]  ? _copy_from_iter+0x2c1/0x10f0
[  486.390666][ T7701]  netlink_unicast+0x53b/0x810
[  486.395622][ T7701]  ? netlink_attachskb+0x880/0x880
[  486.401187][ T7701]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  486.407358][ T7701]  ? __phys_addr_symbol+0x30/0x70
[  486.412570][ T7701]  ? __check_object_size+0x323/0x730
[  486.418214][ T7701]  netlink_sendmsg+0x93c/0xe40
[  486.423094][ T7701]  ? netlink_unicast+0x810/0x810
[  486.428145][ T7701]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  486.433810][ T7701]  ? netlink_unicast+0x810/0x810
[  486.439016][ T7701]  __sock_sendmsg+0xd5/0x180
[  486.443819][ T7701]  ____sys_sendmsg+0x6ac/0x940
[  486.449128][ T7701]  ? copy_msghdr_from_user+0x10b/0x160
[  486.454700][ T7701]  ? kernel_sendmsg+0x50/0x50
[  486.459593][ T7701]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  486.465604][ T7701]  ___sys_sendmsg+0x135/0x1d0
[  486.470478][ T7701]  ? do_recvmmsg+0x740/0x740
[  486.475262][ T7701]  ? find_held_lock+0x2d/0x110
[  486.480395][ T7701]  ? preempt_count_sub+0x160/0x160
[  486.486183][ T7701]  ? __fget_light+0x1fc/0x260
[  486.491079][ T7701]  __sys_sendmsg+0x117/0x1e0
[  486.495788][ T7701]  ? __sys_sendmsg_sock+0x30/0x30
[  486.501090][ T7701]  ? syscall_enter_from_user_mode+0x7f/0x120
[  486.507224][ T7701]  do_syscall_64+0x40/0x110
[  486.512106][ T7701]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  486.518536][ T7701] RIP: 0033:0x7fb700fd30b9
[  486.523432][ T7701] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  486.543833][ T7701] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  486.553564][ T7701] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  486.561680][ T7701] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  486.569842][ T7701] RBP: 000000000007646a R08: 0000000000000000 R09: 0000000000000006
[  486.578708][ T7701] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  486.586996][ T7701] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  486.595362][ T7701]  </TASK>
[  486.599816][ T7701] kobject: kobject_add_internal failed for lapb10000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  486.629155][ T7702] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  486.650306][ T7702] sysfs: cannot create duplicate filename '/devices/virtual/net/bpq100000000000'
[  486.660329][ T7702] CPU: 1 PID: 7702 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  486.670886][ T7702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  486.681135][ T7702] Call Trace:
[  486.684456][ T7702]  <TASK>
[  486.687829][ T7702]  dump_stack_lvl+0x125/0x1b0
[  486.692642][ T7702]  sysfs_warn_dup+0x7f/0xa0
[  486.697158][ T7702]  sysfs_create_dir_ns+0x249/0x2b0
[  486.702294][ T7702]  ? sysfs_create_mount_point+0xb0/0xb0
[  486.707946][ T7702]  ? spin_bug+0x1d0/0x1d0
[  486.712369][ T7702]  ? net_namespace+0x12/0x40
[  486.716997][ T7702]  ? device_namespace+0x8d/0xc0
[  486.722144][ T7702]  kobject_add_internal+0x2c8/0x970
[  486.727538][ T7702]  kobject_add+0x16f/0x240
[  486.732050][ T7702]  ? kset_create_and_add+0x190/0x190
[  486.737559][ T7702]  ? do_raw_spin_unlock+0x173/0x230
[  486.742785][ T7702]  ? kobject_put+0xbe/0x440
[  486.747383][ T7702]  ? device_add+0xc35/0x1aa0
[  486.752237][ T7702]  device_add+0x289/0x1aa0
[  486.756760][ T7702]  ? device_initialize+0x510/0x510
[  486.762304][ T7702]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  486.769528][ T7702]  ? __init_waitqueue_head+0xca/0x150
[  486.775030][ T7702]  netdev_register_kobject+0x183/0x3f0
[  486.780705][ T7702]  register_netdevice+0xbe6/0x14b0
[  486.785824][ T7702]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  486.791714][ T7702]  ? alloc_netdev_mqs+0xee6/0x1290
[  486.796962][ T7702]  bpq_device_event+0x39e/0xaf0
[  486.802250][ T7702]  ? team_device_event+0x219/0x750
[  486.807570][ T7702]  notifier_call_chain+0xb6/0x3b0
[  486.812690][ T7702]  ? bpq_seq_stop+0xb0/0xb0
[  486.817211][ T7702]  call_netdevice_notifiers_info+0xbe/0x130
[  486.823122][ T7702]  __dev_notify_flags+0x12d/0x2e0
[  486.828160][ T7702]  ? dev_change_name+0x800/0x800
[  486.833403][ T7702]  ? dev_set_allmulti+0x30/0x30
[  486.838620][ T7702]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  486.844883][ T7702]  ? validate_linkmsg+0x6fc/0x9c0
[  486.850104][ T7702]  rtnl_configure_link+0x1b3/0x260
[  486.855334][ T7702]  ? br_dev_newlink+0xd3/0x110
[  486.860458][ T7702]  __rtnl_newlink+0x11a7/0x1930
[  486.865524][ T7702]  ? rtnl_link_unregister+0x260/0x260
[  486.871489][ T7702]  rtnl_newlink+0x67/0xa0
[  486.876213][ T7702]  ? __rtnl_newlink+0x1930/0x1930
[  486.881613][ T7702]  rtnetlink_rcv_msg+0x3c7/0xe00
[  486.886747][ T7702]  ? rtnl_fill_vf+0x4a0/0x4a0
[  486.891813][ T7702]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  486.898250][ T7702]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  486.904445][ T7702]  netlink_rcv_skb+0x16b/0x440
[  486.909474][ T7702]  ? rtnl_fill_vf+0x4a0/0x4a0
[  486.914324][ T7702]  ? netlink_ack+0x1380/0x1380
[  486.919677][ T7702]  ? lock_sync+0x190/0x190
[  486.924452][ T7702]  ? netlink_deliver_tap+0x1a0/0xd00
[  486.930083][ T7702]  ? _copy_from_iter+0x2c1/0x10f0
[  486.935315][ T7702]  netlink_unicast+0x53b/0x810
[  486.940466][ T7702]  ? netlink_attachskb+0x880/0x880
[  486.946226][ T7702]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  486.952753][ T7702]  ? __phys_addr_symbol+0x30/0x70
[  486.957892][ T7702]  ? __check_object_size+0x323/0x730
[  486.963442][ T7702]  netlink_sendmsg+0x93c/0xe40
[  486.968565][ T7702]  ? netlink_unicast+0x810/0x810
[  486.973859][ T7702]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  486.979239][ T7702]  ? netlink_unicast+0x810/0x810
[  486.984283][ T7702]  __sock_sendmsg+0xd5/0x180
[  486.988896][ T7702]  ____sys_sendmsg+0x6ac/0x940
[  486.993840][ T7702]  ? copy_msghdr_from_user+0x10b/0x160
[  486.999388][ T7702]  ? kernel_sendmsg+0x50/0x50
[  487.004331][ T7702]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  487.010323][ T7702]  ___sys_sendmsg+0x135/0x1d0
[  487.015007][ T7702]  ? do_recvmmsg+0x740/0x740
[  487.019601][ T7702]  ? find_held_lock+0x2d/0x110
[  487.024888][ T7702]  ? preempt_count_sub+0x160/0x160
[  487.030016][ T7702]  ? __fget_light+0x1fc/0x260
[  487.034792][ T7702]  __sys_sendmsg+0x117/0x1e0
[  487.039571][ T7702]  ? __sys_sendmsg_sock+0x30/0x30
[  487.044693][ T7702]  ? syscall_enter_from_user_mode+0x7f/0x120
[  487.050767][ T7702]  do_syscall_64+0x40/0x110
[  487.055617][ T7702]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  487.061688][ T7702] RIP: 0033:0x7fb700fd30b9
[  487.066107][ T7702] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  487.086498][ T7702] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  487.095433][ T7702] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  487.104031][ T7702] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  487.112107][ T7702] RBP: 0000000000076894 R08: 0000000000000000 R09: 0000000000000006
[  487.120694][ T7702] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  487.130010][ T7702] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  487.138543][ T7702]  </TASK>
[  487.147584][ T7702] kobject: kobject_add_internal failed for bpq100000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  487.164585][ T7702] sysfs: cannot create duplicate filename '/devices/virtual/net/lapb10000000000'
[  487.174620][ T7702] CPU: 1 PID: 7702 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  487.185072][ T7702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  487.195474][ T7702] Call Trace:
[  487.198744][ T7702]  <TASK>
[  487.201764][ T7702]  dump_stack_lvl+0x125/0x1b0
[  487.206439][ T7702]  sysfs_warn_dup+0x7f/0xa0
[  487.211046][ T7702]  sysfs_create_dir_ns+0x249/0x2b0
[  487.216330][ T7702]  ? sysfs_create_mount_point+0xb0/0xb0
[  487.221964][ T7702]  ? spin_bug+0x1d0/0x1d0
[  487.226292][ T7702]  ? net_namespace+0x12/0x40
[  487.230874][ T7702]  ? device_namespace+0x8d/0xc0
[  487.235746][ T7702]  kobject_add_internal+0x2c8/0x970
[  487.240958][ T7702]  kobject_add+0x16f/0x240
[  487.245658][ T7702]  ? kset_create_and_add+0x190/0x190
[  487.251055][ T7702]  ? do_raw_spin_unlock+0x173/0x230
[  487.256514][ T7702]  ? kobject_put+0xbe/0x440
[  487.261030][ T7702]  ? device_add+0xc35/0x1aa0
[  487.265707][ T7702]  device_add+0x289/0x1aa0
[  487.270139][ T7702]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  487.276994][ T7702]  ? kfree_const+0x1c/0x60
[  487.281412][ T7702]  ? netdev_register_kobject+0xf7/0x3f0
[  487.287147][ T7702]  netdev_register_kobject+0x183/0x3f0
[  487.292805][ T7702]  register_netdevice+0xbe6/0x14b0
[  487.298052][ T7702]  ? lockdep_hardirqs_on+0x7d/0x110
[  487.304223][ T7702]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  487.310738][ T7702]  ? lapbeth_setup+0x170/0x170
[  487.315602][ T7702]  lapbeth_device_event+0x5b8/0xd40
[  487.320989][ T7702]  notifier_call_chain+0xb6/0x3b0
[  487.326024][ T7702]  ? lapbeth_xmit+0x290/0x290
[  487.330803][ T7702]  call_netdevice_notifiers_info+0xbe/0x130
[  487.336967][ T7702]  __dev_notify_flags+0x12d/0x2e0
[  487.342360][ T7702]  ? dev_change_name+0x800/0x800
[  487.348002][ T7702]  ? dev_set_allmulti+0x30/0x30
[  487.353121][ T7702]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  487.359292][ T7702]  ? validate_linkmsg+0x6fc/0x9c0
[  487.364682][ T7702]  rtnl_configure_link+0x1b3/0x260
[  487.370058][ T7702]  ? br_dev_newlink+0xd3/0x110
[  487.375184][ T7702]  __rtnl_newlink+0x11a7/0x1930
[  487.380349][ T7702]  ? rtnl_link_unregister+0x260/0x260
[  487.385963][ T7702]  rtnl_newlink+0x67/0xa0
[  487.390508][ T7702]  ? __rtnl_newlink+0x1930/0x1930
[  487.395630][ T7702]  rtnetlink_rcv_msg+0x3c7/0xe00
[  487.400753][ T7702]  ? rtnl_fill_vf+0x4a0/0x4a0
[  487.405725][ T7702]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  487.411961][ T7702]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  487.418840][ T7702]  netlink_rcv_skb+0x16b/0x440
[  487.430493][ T7702]  ? rtnl_fill_vf+0x4a0/0x4a0
[  487.435277][ T7702]  ? netlink_ack+0x1380/0x1380
[  487.440060][ T7702]  ? lock_sync+0x190/0x190
[  487.444612][ T7702]  ? netlink_deliver_tap+0x1a0/0xd00
[  487.449992][ T7702]  ? _copy_from_iter+0x2c1/0x10f0
[  487.455202][ T7702]  netlink_unicast+0x53b/0x810
[  487.460077][ T7702]  ? netlink_attachskb+0x880/0x880
[  487.465854][ T7702]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  487.471957][ T7702]  ? __phys_addr_symbol+0x30/0x70
[  487.477789][ T7702]  ? __check_object_size+0x323/0x730
[  487.483192][ T7702]  netlink_sendmsg+0x93c/0xe40
[  487.488071][ T7702]  ? netlink_unicast+0x810/0x810
[  487.493111][ T7702]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  487.498748][ T7702]  ? netlink_unicast+0x810/0x810
[  487.504228][ T7702]  __sock_sendmsg+0xd5/0x180
[  487.509141][ T7702]  ____sys_sendmsg+0x6ac/0x940
[  487.514113][ T7702]  ? copy_msghdr_from_user+0x10b/0x160
[  487.520915][ T7702]  ? kernel_sendmsg+0x50/0x50
[  487.525719][ T7702]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  487.531979][ T7702]  ___sys_sendmsg+0x135/0x1d0
[  487.536961][ T7702]  ? do_recvmmsg+0x740/0x740
[  487.541822][ T7702]  ? find_held_lock+0x2d/0x110
[  487.546603][ T7702]  ? preempt_count_sub+0x160/0x160
[  487.552250][ T7702]  ? __fget_light+0x1fc/0x260
[  487.557302][ T7702]  __sys_sendmsg+0x117/0x1e0
[  487.562491][ T7702]  ? __sys_sendmsg_sock+0x30/0x30
[  487.568096][ T7702]  ? syscall_enter_from_user_mode+0x7f/0x120
[  487.574551][ T7702]  do_syscall_64+0x40/0x110
[  487.579471][ T7702]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  487.585567][ T7702] RIP: 0033:0x7fb700fd30b9
[  487.590165][ T7702] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  487.611200][ T7702] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  487.619811][ T7702] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  487.628155][ T7702] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  487.636760][ T7702] RBP: 0000000000076894 R08: 0000000000000000 R09: 0000000000000006
[  487.647947][ T7702] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  487.656038][ T7702] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  487.664236][ T7702]  </TASK>
[  487.670880][ T7702] kobject: kobject_add_internal failed for lapb10000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  487.706970][ T7703] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  487.727911][ T7703] sysfs: cannot create duplicate filename '/devices/virtual/net/bpq100000000000'
[  487.737961][ T7703] CPU: 1 PID: 7703 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  487.748324][ T7703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  487.759074][ T7703] Call Trace:
[  487.762347][ T7703]  <TASK>
[  487.765447][ T7703]  dump_stack_lvl+0x125/0x1b0
[  487.770126][ T7703]  sysfs_warn_dup+0x7f/0xa0
[  487.774727][ T7703]  sysfs_create_dir_ns+0x249/0x2b0
[  487.779883][ T7703]  ? sysfs_create_mount_point+0xb0/0xb0
[  487.785537][ T7703]  ? spin_bug+0x1d0/0x1d0
[  487.790150][ T7703]  ? net_namespace+0x12/0x40
[  487.795032][ T7703]  ? device_namespace+0x8d/0xc0
[  487.799927][ T7703]  kobject_add_internal+0x2c8/0x970
[  487.805142][ T7703]  kobject_add+0x16f/0x240
[  487.809954][ T7703]  ? kset_create_and_add+0x190/0x190
[  487.815649][ T7703]  ? do_raw_spin_unlock+0x173/0x230
[  487.821036][ T7703]  ? kobject_put+0xbe/0x440
[  487.826260][ T7703]  ? device_add+0xc35/0x1aa0
[  487.831292][ T7703]  device_add+0x289/0x1aa0
[  487.835824][ T7703]  ? device_initialize+0x510/0x510
[  487.841232][ T7703]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  487.848465][ T7703]  ? __init_waitqueue_head+0xca/0x150
[  487.854202][ T7703]  netdev_register_kobject+0x183/0x3f0
[  487.860033][ T7703]  register_netdevice+0xbe6/0x14b0
[  487.865184][ T7703]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  487.871297][ T7703]  ? alloc_netdev_mqs+0xee6/0x1290
[  487.876987][ T7703]  bpq_device_event+0x39e/0xaf0
[  487.881879][ T7703]  ? team_device_event+0x219/0x750
[  487.888049][ T7703]  notifier_call_chain+0xb6/0x3b0
[  487.893108][ T7703]  ? bpq_seq_stop+0xb0/0xb0
[  487.897975][ T7703]  call_netdevice_notifiers_info+0xbe/0x130
[  487.903985][ T7703]  __dev_notify_flags+0x12d/0x2e0
[  487.909239][ T7703]  ? dev_change_name+0x800/0x800
[  487.914998][ T7703]  ? dev_set_allmulti+0x30/0x30
[  487.920651][ T7703]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  487.926909][ T7703]  ? validate_linkmsg+0x6fc/0x9c0
[  487.932755][ T7703]  rtnl_configure_link+0x1b3/0x260
[  487.938087][ T7703]  ? br_dev_newlink+0xd3/0x110
[  487.943245][ T7703]  __rtnl_newlink+0x11a7/0x1930
[  487.948565][ T7703]  ? rtnl_link_unregister+0x260/0x260
[  487.954436][ T7703]  rtnl_newlink+0x67/0xa0
[  487.959079][ T7703]  ? __rtnl_newlink+0x1930/0x1930
[  487.965038][ T7703]  rtnetlink_rcv_msg+0x3c7/0xe00
[  487.970594][ T7703]  ? rtnl_fill_vf+0x4a0/0x4a0
[  487.975406][ T7703]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  487.983292][ T7703]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  487.989554][ T7703]  netlink_rcv_skb+0x16b/0x440
[  487.994573][ T7703]  ? rtnl_fill_vf+0x4a0/0x4a0
[  487.999553][ T7703]  ? netlink_ack+0x1380/0x1380
[  488.004600][ T7703]  ? lock_sync+0x190/0x190
[  488.010222][ T7703]  ? netlink_deliver_tap+0x1a0/0xd00
[  488.016436][ T7703]  ? _copy_from_iter+0x2c1/0x10f0
[  488.021983][ T7703]  netlink_unicast+0x53b/0x810
[  488.027128][ T7703]  ? netlink_attachskb+0x880/0x880
[  488.032668][ T7703]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  488.038952][ T7703]  ? __phys_addr_symbol+0x30/0x70
[  488.044264][ T7703]  ? __check_object_size+0x323/0x730
[  488.049740][ T7703]  netlink_sendmsg+0x93c/0xe40
[  488.054612][ T7703]  ? netlink_unicast+0x810/0x810
[  488.059571][ T7703]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  488.064867][ T7703]  ? netlink_unicast+0x810/0x810
[  488.069816][ T7703]  __sock_sendmsg+0xd5/0x180
[  488.074503][ T7703]  ____sys_sendmsg+0x6ac/0x940
[  488.079709][ T7703]  ? copy_msghdr_from_user+0x10b/0x160
[  488.085281][ T7703]  ? kernel_sendmsg+0x50/0x50
[  488.090145][ T7703]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  488.096322][ T7703]  ___sys_sendmsg+0x135/0x1d0
[  488.101187][ T7703]  ? do_recvmmsg+0x740/0x740
[  488.105971][ T7703]  ? find_held_lock+0x2d/0x110
[  488.111315][ T7703]  ? preempt_count_sub+0x160/0x160
[  488.116447][ T7703]  ? __fget_light+0x1fc/0x260
[  488.126604][ T7703]  __sys_sendmsg+0x117/0x1e0
[  488.131466][ T7703]  ? __sys_sendmsg_sock+0x30/0x30
[  488.136669][ T7703]  ? syscall_enter_from_user_mode+0x7f/0x120
[  488.142842][ T7703]  do_syscall_64+0x40/0x110
[  488.147450][ T7703]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  488.153530][ T7703] RIP: 0033:0x7fb700fd30b9
[  488.158472][ T7703] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  488.178435][ T7703] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  488.187413][ T7703] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  488.195475][ T7703] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  488.203649][ T7703] RBP: 0000000000076cb8 R08: 0000000000000000 R09: 0000000000000006
[  488.212073][ T7703] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  488.220162][ T7703] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  488.228974][ T7703]  </TASK>
[  488.236574][ T7703] kobject: kobject_add_internal failed for bpq100000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  488.253572][ T7703] sysfs: cannot create duplicate filename '/devices/virtual/net/lapb10000000000'
[  488.263095][ T7703] CPU: 0 PID: 7703 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  488.273354][ T7703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  488.283532][ T7703] Call Trace:
[  488.286896][ T7703]  <TASK>
[  488.290017][ T7703]  dump_stack_lvl+0x125/0x1b0
[  488.294806][ T7703]  sysfs_warn_dup+0x7f/0xa0
[  488.299600][ T7703]  sysfs_create_dir_ns+0x249/0x2b0
[  488.304899][ T7703]  ? sysfs_create_mount_point+0xb0/0xb0
[  488.310623][ T7703]  ? spin_bug+0x1d0/0x1d0
[  488.315047][ T7703]  ? net_namespace+0x12/0x40
[  488.320026][ T7703]  ? device_namespace+0x8d/0xc0
[  488.325781][ T7703]  kobject_add_internal+0x2c8/0x970
[  488.331551][ T7703]  kobject_add+0x16f/0x240
[  488.336244][ T7703]  ? kset_create_and_add+0x190/0x190
[  488.341896][ T7703]  ? do_raw_spin_unlock+0x173/0x230
[  488.347280][ T7703]  ? kobject_put+0xbe/0x440
[  488.352180][ T7703]  ? device_add+0xc35/0x1aa0
[  488.357153][ T7703]  device_add+0x289/0x1aa0
[  488.361927][ T7703]  ? device_initialize+0x510/0x510
[  488.367480][ T7703]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  488.374775][ T7703]  ? __init_waitqueue_head+0xca/0x150
[  488.380272][ T7703]  netdev_register_kobject+0x183/0x3f0
[  488.385750][ T7703]  register_netdevice+0xbe6/0x14b0
[  488.391078][ T7703]  ? lockdep_hardirqs_on+0x7d/0x110
[  488.396499][ T7703]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  488.402765][ T7703]  ? lapbeth_setup+0x170/0x170
[  488.407997][ T7703]  lapbeth_device_event+0x5b8/0xd40
[  488.413220][ T7703]  notifier_call_chain+0xb6/0x3b0
[  488.418345][ T7703]  ? lapbeth_xmit+0x290/0x290
[  488.423220][ T7703]  call_netdevice_notifiers_info+0xbe/0x130
[  488.429306][ T7703]  __dev_notify_flags+0x12d/0x2e0
[  488.434702][ T7703]  ? dev_change_name+0x800/0x800
[  488.439697][ T7703]  ? dev_set_allmulti+0x30/0x30
[  488.444735][ T7703]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  488.450742][ T7703]  ? validate_linkmsg+0x6fc/0x9c0
[  488.456241][ T7703]  rtnl_configure_link+0x1b3/0x260
[  488.461765][ T7703]  ? br_dev_newlink+0xd3/0x110
[  488.467245][ T7703]  __rtnl_newlink+0x11a7/0x1930
[  488.472297][ T7703]  ? rtnl_link_unregister+0x260/0x260
[  488.478203][ T7703]  rtnl_newlink+0x67/0xa0
[  488.483039][ T7703]  ? __rtnl_newlink+0x1930/0x1930
[  488.489046][ T7703]  rtnetlink_rcv_msg+0x3c7/0xe00
[  488.494637][ T7703]  ? rtnl_fill_vf+0x4a0/0x4a0
[  488.499984][ T7703]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  488.508602][ T7703]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  488.514967][ T7703]  netlink_rcv_skb+0x16b/0x440
[  488.520013][ T7703]  ? rtnl_fill_vf+0x4a0/0x4a0
[  488.525139][ T7703]  ? netlink_ack+0x1380/0x1380
[  488.530175][ T7703]  ? lock_sync+0x190/0x190
[  488.534984][ T7703]  ? netlink_deliver_tap+0x1a0/0xd00
[  488.540546][ T7703]  ? _copy_from_iter+0x2c1/0x10f0
[  488.545598][ T7703]  netlink_unicast+0x53b/0x810
[  488.550676][ T7703]  ? netlink_attachskb+0x880/0x880
[  488.556093][ T7703]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  488.562179][ T7703]  ? __phys_addr_symbol+0x30/0x70
[  488.567699][ T7703]  ? __check_object_size+0x323/0x730
[  488.573278][ T7703]  netlink_sendmsg+0x93c/0xe40
[  488.578355][ T7703]  ? netlink_unicast+0x810/0x810
[  488.583691][ T7703]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  488.589270][ T7703]  ? netlink_unicast+0x810/0x810
[  488.594427][ T7703]  __sock_sendmsg+0xd5/0x180
[  488.599305][ T7703]  ____sys_sendmsg+0x6ac/0x940
[  488.604965][ T7703]  ? copy_msghdr_from_user+0x10b/0x160
[  488.611097][ T7703]  ? kernel_sendmsg+0x50/0x50
[  488.615887][ T7703]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  488.622619][ T7703]  ___sys_sendmsg+0x135/0x1d0
[  488.627502][ T7703]  ? do_recvmmsg+0x740/0x740
[  488.632229][ T7703]  ? find_held_lock+0x2d/0x110
[  488.637022][ T7703]  ? preempt_count_sub+0x160/0x160
[  488.642178][ T7703]  ? __fget_light+0x1fc/0x260
[  488.647324][ T7703]  __sys_sendmsg+0x117/0x1e0
[  488.652304][ T7703]  ? __sys_sendmsg_sock+0x30/0x30
[  488.657459][ T7703]  ? syscall_enter_from_user_mode+0x7f/0x120
[  488.664260][ T7703]  do_syscall_64+0x40/0x110
[  488.668924][ T7703]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  488.675392][ T7703] RIP: 0033:0x7fb700fd30b9
[  488.680028][ T7703] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  488.701137][ T7703] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  488.709824][ T7703] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  488.718233][ T7703] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  488.726815][ T7703] RBP: 0000000000076cb8 R08: 0000000000000000 R09: 0000000000000006
[  488.734889][ T7703] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  488.743634][ T7703] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  488.752192][ T7703]  </TASK>
[  488.757722][ T7703] kobject: kobject_add_internal failed for lapb10000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  488.786831][ T7704] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  488.808191][ T7704] sysfs: cannot create duplicate filename '/devices/virtual/net/bpq100000000000'
[  488.819231][ T7704] CPU: 0 PID: 7704 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  488.829563][ T7704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  488.840148][ T7704] Call Trace:
[  488.843615][ T7704]  <TASK>
[  488.846636][ T7704]  dump_stack_lvl+0x125/0x1b0
[  488.851424][ T7704]  sysfs_warn_dup+0x7f/0xa0
[  488.856290][ T7704]  sysfs_create_dir_ns+0x249/0x2b0
[  488.861409][ T7704]  ? sysfs_create_mount_point+0xb0/0xb0
[  488.867162][ T7704]  ? spin_bug+0x1d0/0x1d0
[  488.871604][ T7704]  ? net_namespace+0x12/0x40
[  488.876292][ T7704]  ? device_namespace+0x8d/0xc0
[  488.881254][ T7704]  kobject_add_internal+0x2c8/0x970
[  488.886576][ T7704]  kobject_add+0x16f/0x240
[  488.890993][ T7704]  ? kset_create_and_add+0x190/0x190
[  488.896375][ T7704]  ? do_raw_spin_unlock+0x173/0x230
[  488.901875][ T7704]  ? kobject_put+0xbe/0x440
[  488.906839][ T7704]  ? device_add+0xc35/0x1aa0
[  488.911702][ T7704]  device_add+0x289/0x1aa0
[  488.916137][ T7704]  ? device_initialize+0x510/0x510
[  488.921357][ T7704]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  488.928592][ T7704]  ? __init_waitqueue_head+0xca/0x150
[  488.935583][ T7704]  netdev_register_kobject+0x183/0x3f0
[  488.941443][ T7704]  register_netdevice+0xbe6/0x14b0
[  488.947235][ T7704]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  488.953434][ T7704]  ? alloc_netdev_mqs+0xee6/0x1290
[  488.958996][ T7704]  bpq_device_event+0x39e/0xaf0
[  488.964764][ T7704]  ? team_device_event+0x219/0x750
[  488.969995][ T7704]  notifier_call_chain+0xb6/0x3b0
[  488.975402][ T7704]  ? bpq_seq_stop+0xb0/0xb0
[  488.980047][ T7704]  call_netdevice_notifiers_info+0xbe/0x130
[  488.986237][ T7704]  __dev_notify_flags+0x12d/0x2e0
[  488.991700][ T7704]  ? dev_change_name+0x800/0x800
[  488.996930][ T7704]  ? dev_set_allmulti+0x30/0x30
[  489.002152][ T7704]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  489.008240][ T7704]  ? validate_linkmsg+0x6fc/0x9c0
[  489.013279][ T7704]  rtnl_configure_link+0x1b3/0x260
[  489.018573][ T7704]  ? br_dev_newlink+0xd3/0x110
[  489.023448][ T7704]  __rtnl_newlink+0x11a7/0x1930
[  489.028536][ T7704]  ? rtnl_link_unregister+0x260/0x260
[  489.034207][ T7704]  rtnl_newlink+0x67/0xa0
[  489.039101][ T7704]  ? __rtnl_newlink+0x1930/0x1930
[  489.044765][ T7704]  rtnetlink_rcv_msg+0x3c7/0xe00
[  489.049845][ T7704]  ? rtnl_fill_vf+0x4a0/0x4a0
[  489.054624][ T7704]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  489.060893][ T7704]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  489.066972][ T7704]  netlink_rcv_skb+0x16b/0x440
[  489.072012][ T7704]  ? rtnl_fill_vf+0x4a0/0x4a0
[  489.076718][ T7704]  ? netlink_ack+0x1380/0x1380
[  489.081860][ T7704]  ? lock_sync+0x190/0x190
[  489.086299][ T7704]  ? netlink_deliver_tap+0x1a0/0xd00
[  489.091591][ T7704]  ? _copy_from_iter+0x2c1/0x10f0
[  489.096987][ T7704]  netlink_unicast+0x53b/0x810
[  489.101872][ T7704]  ? netlink_attachskb+0x880/0x880
[  489.106999][ T7704]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  489.112908][ T7704]  ? __phys_addr_symbol+0x30/0x70
[  489.117954][ T7704]  ? __check_object_size+0x323/0x730
[  489.123419][ T7704]  netlink_sendmsg+0x93c/0xe40
[  489.128511][ T7704]  ? netlink_unicast+0x810/0x810
[  489.133659][ T7704]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  489.139243][ T7704]  ? netlink_unicast+0x810/0x810
[  489.144484][ T7704]  __sock_sendmsg+0xd5/0x180
[  489.149661][ T7704]  ____sys_sendmsg+0x6ac/0x940
[  489.154621][ T7704]  ? copy_msghdr_from_user+0x10b/0x160
[  489.161180][ T7704]  ? kernel_sendmsg+0x50/0x50
[  489.166849][ T7704]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  489.173496][ T7704]  ___sys_sendmsg+0x135/0x1d0
[  489.178457][ T7704]  ? do_recvmmsg+0x740/0x740
[  489.183347][ T7704]  ? find_held_lock+0x2d/0x110
[  489.188937][ T7704]  ? preempt_count_sub+0x160/0x160
[  489.194365][ T7704]  ? __fget_light+0x1fc/0x260
[  489.199463][ T7704]  __sys_sendmsg+0x117/0x1e0
[  489.204214][ T7704]  ? __sys_sendmsg_sock+0x30/0x30
[  489.209616][ T7704]  ? syscall_enter_from_user_mode+0x7f/0x120
[  489.215733][ T7704]  do_syscall_64+0x40/0x110
[  489.220685][ T7704]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  489.226689][ T7704] RIP: 0033:0x7fb700fd30b9
[  489.231109][ T7704] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  489.251183][ T7704] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  489.259711][ T7704] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  489.267792][ T7704] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  489.276381][ T7704] RBP: 00000000000770e8 R08: 0000000000000000 R09: 0000000000000006
[  489.284368][ T7704] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  489.292533][ T7704] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  489.301221][ T7704]  </TASK>
[  489.308291][ T7704] kobject: kobject_add_internal failed for bpq100000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  489.324416][ T7704] sysfs: cannot create duplicate filename '/devices/virtual/net/lapb10000000000'
[  489.334217][ T7704] CPU: 0 PID: 7704 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  489.344580][ T7704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  489.355395][ T7704] Call Trace:
[  489.358685][ T7704]  <TASK>
[  489.361631][ T7704]  dump_stack_lvl+0x125/0x1b0
[  489.366352][ T7704]  sysfs_warn_dup+0x7f/0xa0
[  489.371218][ T7704]  sysfs_create_dir_ns+0x249/0x2b0
[  489.376445][ T7704]  ? sysfs_create_mount_point+0xb0/0xb0
[  489.382023][ T7704]  ? spin_bug+0x1d0/0x1d0
[  489.386619][ T7704]  ? net_namespace+0x12/0x40
[  489.391494][ T7704]  ? device_namespace+0x8d/0xc0
[  489.396483][ T7704]  kobject_add_internal+0x2c8/0x970
[  489.402233][ T7704]  kobject_add+0x16f/0x240
[  489.406835][ T7704]  ? kset_create_and_add+0x190/0x190
[  489.412144][ T7704]  ? do_raw_spin_unlock+0x173/0x230
[  489.417551][ T7704]  ? kobject_put+0xbe/0x440
[  489.422171][ T7704]  ? device_add+0xc35/0x1aa0
[  489.430086][ T7704]  device_add+0x289/0x1aa0
[  489.434898][ T7704]  ? device_initialize+0x510/0x510
[  489.442715][ T7704]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  489.450068][ T7704]  ? __init_waitqueue_head+0xca/0x150
[  489.455665][ T7704]  netdev_register_kobject+0x183/0x3f0
[  489.461680][ T7704]  register_netdevice+0xbe6/0x14b0
[  489.466984][ T7704]  ? lockdep_hardirqs_on+0x7d/0x110
[  489.472272][ T7704]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  489.478450][ T7704]  ? lapbeth_setup+0x170/0x170
[  489.483587][ T7704]  lapbeth_device_event+0x5b8/0xd40
[  489.489338][ T7704]  notifier_call_chain+0xb6/0x3b0
[  489.494496][ T7704]  ? lapbeth_xmit+0x290/0x290
[  489.499498][ T7704]  call_netdevice_notifiers_info+0xbe/0x130
[  489.506638][ T7704]  __dev_notify_flags+0x12d/0x2e0
[  489.512542][ T7704]  ? dev_change_name+0x800/0x800
[  489.518128][ T7704]  ? dev_set_allmulti+0x30/0x30
[  489.523421][ T7704]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  489.530826][ T7704]  ? validate_linkmsg+0x6fc/0x9c0
[  489.536226][ T7704]  rtnl_configure_link+0x1b3/0x260
[  489.541365][ T7704]  ? br_dev_newlink+0xd3/0x110
[  489.548152][ T7704]  __rtnl_newlink+0x11a7/0x1930
[  489.553318][ T7704]  ? rtnl_link_unregister+0x260/0x260
[  489.559260][ T7704]  rtnl_newlink+0x67/0xa0
[  489.564121][ T7704]  ? __rtnl_newlink+0x1930/0x1930
[  489.569371][ T7704]  rtnetlink_rcv_msg+0x3c7/0xe00
[  489.574407][ T7704]  ? rtnl_fill_vf+0x4a0/0x4a0
[  489.579119][ T7704]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  489.585208][ T7704]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  489.591232][ T7704]  netlink_rcv_skb+0x16b/0x440
[  489.596193][ T7704]  ? rtnl_fill_vf+0x4a0/0x4a0
[  489.601165][ T7704]  ? netlink_ack+0x1380/0x1380
[  489.606320][ T7704]  ? lock_sync+0x190/0x190
[  489.611168][ T7704]  ? netlink_deliver_tap+0x1a0/0xd00
[  489.616738][ T7704]  ? _copy_from_iter+0x2c1/0x10f0
[  489.622318][ T7704]  netlink_unicast+0x53b/0x810
[  489.627274][ T7704]  ? netlink_attachskb+0x880/0x880
[  489.632390][ T7704]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  489.638896][ T7704]  ? __phys_addr_symbol+0x30/0x70
[  489.644023][ T7704]  ? __check_object_size+0x323/0x730
[  489.649659][ T7704]  netlink_sendmsg+0x93c/0xe40
[  489.655024][ T7704]  ? netlink_unicast+0x810/0x810
[  489.660817][ T7704]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  489.666643][ T7704]  ? netlink_unicast+0x810/0x810
[  489.672264][ T7704]  __sock_sendmsg+0xd5/0x180
[  489.677323][ T7704]  ____sys_sendmsg+0x6ac/0x940
[  489.682831][ T7704]  ? copy_msghdr_from_user+0x10b/0x160
[  489.688431][ T7704]  ? kernel_sendmsg+0x50/0x50
[  489.693305][ T7704]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  489.701931][ T7704]  ___sys_sendmsg+0x135/0x1d0
[  489.706809][ T7704]  ? do_recvmmsg+0x740/0x740
[  489.711506][ T7704]  ? find_held_lock+0x2d/0x110
[  489.716313][ T7704]  ? preempt_count_sub+0x160/0x160
[  489.721715][ T7704]  ? __fget_light+0x1fc/0x260
[  489.726814][ T7704]  __sys_sendmsg+0x117/0x1e0
[  489.731747][ T7704]  ? __sys_sendmsg_sock+0x30/0x30
[  489.736806][ T7704]  ? syscall_enter_from_user_mode+0x7f/0x120
[  489.743243][ T7704]  do_syscall_64+0x40/0x110
[  489.747969][ T7704]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  489.753918][ T7704] RIP: 0033:0x7fb700fd30b9
[  489.758686][ T7704] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  489.778833][ T7704] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  489.787599][ T7704] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  489.796037][ T7704] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  489.804730][ T7704] RBP: 00000000000770e8 R08: 0000000000000000 R09: 0000000000000006
[  489.813165][ T7704] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  489.822125][ T7704] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  489.830829][ T7704]  </TASK>
[  489.835617][ T7704] kobject: kobject_add_internal failed for lapb10000000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  489.866946][ T7705] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  489.877576][ T7705] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  489.887366][ T7705] CPU: 0 PID: 7705 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  489.897578][ T7705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  489.907642][ T7705] Call Trace:
[  489.910940][ T7705]  <TASK>
[  489.913870][ T7705]  dump_stack_lvl+0x125/0x1b0
[  489.918704][ T7705]  sysfs_warn_dup+0x7f/0xa0
[  489.923235][ T7705]  sysfs_create_dir_ns+0x249/0x2b0
[  489.928615][ T7705]  ? sysfs_create_mount_point+0xb0/0xb0
[  489.934401][ T7705]  ? spin_bug+0x1d0/0x1d0
[  489.938837][ T7705]  ? net_namespace+0x12/0x40
[  489.943690][ T7705]  ? device_namespace+0x8d/0xc0
[  489.948561][ T7705]  kobject_add_internal+0x2c8/0x970
[  489.954044][ T7705]  kobject_add+0x16f/0x240
[  489.958574][ T7705]  ? kset_create_and_add+0x190/0x190
[  489.964519][ T7705]  ? do_raw_spin_unlock+0x173/0x230
[  489.969825][ T7705]  ? kobject_put+0xbe/0x440
[  489.974523][ T7705]  ? device_add+0xc35/0x1aa0
[  489.979138][ T7705]  device_add+0x289/0x1aa0
[  489.983574][ T7705]  ? device_initialize+0x510/0x510
[  489.988895][ T7705]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  489.995997][ T7705]  ? __init_waitqueue_head+0xca/0x150
[  490.001570][ T7705]  netdev_register_kobject+0x183/0x3f0
[  490.007506][ T7705]  register_netdevice+0xbe6/0x14b0
[  490.013614][ T7705]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  490.019791][ T7705]  ? validate_linkmsg+0x6fc/0x9c0
[  490.025404][ T7705]  br_dev_newlink+0x27/0x110
[  490.030477][ T7705]  ? br_changelink+0x1760/0x1760
[  490.035452][ T7705]  __rtnl_newlink+0x1173/0x1930
[  490.040448][ T7705]  ? rtnl_link_unregister+0x260/0x260
[  490.046239][ T7705]  rtnl_newlink+0x67/0xa0
[  490.050655][ T7705]  ? __rtnl_newlink+0x1930/0x1930
[  490.055713][ T7705]  rtnetlink_rcv_msg+0x3c7/0xe00
[  490.060757][ T7705]  ? rtnl_fill_vf+0x4a0/0x4a0
[  490.065469][ T7705]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  490.071596][ T7705]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  490.078284][ T7705]  netlink_rcv_skb+0x16b/0x440
[  490.083257][ T7705]  ? rtnl_fill_vf+0x4a0/0x4a0
[  490.088044][ T7705]  ? netlink_ack+0x1380/0x1380
[  490.093081][ T7705]  ? lock_sync+0x190/0x190
[  490.097617][ T7705]  ? netlink_deliver_tap+0x1a0/0xd00
[  490.103093][ T7705]  ? _copy_from_iter+0x2c1/0x10f0
[  490.108133][ T7705]  netlink_unicast+0x53b/0x810
[  490.113094][ T7705]  ? netlink_attachskb+0x880/0x880
[  490.118225][ T7705]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  490.124489][ T7705]  ? __phys_addr_symbol+0x30/0x70
[  490.130439][ T7705]  ? __check_object_size+0x323/0x730
[  490.136018][ T7705]  netlink_sendmsg+0x93c/0xe40
[  490.140969][ T7705]  ? netlink_unicast+0x810/0x810
[  490.146116][ T7705]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  490.151682][ T7705]  ? netlink_unicast+0x810/0x810
[  490.156632][ T7705]  __sock_sendmsg+0xd5/0x180
[  490.161232][ T7705]  ____sys_sendmsg+0x6ac/0x940
[  490.166003][ T7705]  ? copy_msghdr_from_user+0x10b/0x160
[  490.171651][ T7705]  ? kernel_sendmsg+0x50/0x50
[  490.176343][ T7705]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  490.182542][ T7705]  ___sys_sendmsg+0x135/0x1d0
[  490.187413][ T7705]  ? do_recvmmsg+0x740/0x740
[  490.192187][ T7705]  ? find_held_lock+0x2d/0x110
[  490.196978][ T7705]  ? preempt_count_sub+0x160/0x160
[  490.202399][ T7705]  ? __fget_light+0x1fc/0x260
[  490.207261][ T7705]  __sys_sendmsg+0x117/0x1e0
[  490.211873][ T7705]  ? __sys_sendmsg_sock+0x30/0x30
[  490.217732][ T7705]  ? syscall_enter_from_user_mode+0x7f/0x120
[  490.223906][ T7705]  do_syscall_64+0x40/0x110
[  490.228506][ T7705]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  490.234503][ T7705] RIP: 0033:0x7fb700fd30b9
[  490.239044][ T7705] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  490.259614][ T7705] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  490.268048][ T7705] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  490.276078][ T7705] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  490.284419][ T7705] RBP: 0000000000077526 R08: 0000000000000000 R09: 0000000000000006
[  490.292410][ T7705] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  490.300397][ T7705] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  490.308474][ T7705]  </TASK>
[  490.315587][ T7705] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  490.385459][ T7705] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  490.395285][ T7705] CPU: 1 PID: 7705 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  490.405726][ T7705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  490.416402][ T7705] Call Trace:
[  490.419731][ T7705]  <TASK>
[  490.422767][ T7705]  dump_stack_lvl+0x125/0x1b0
[  490.427748][ T7705]  sysfs_warn_dup+0x7f/0xa0
[  490.432548][ T7705]  sysfs_create_dir_ns+0x249/0x2b0
[  490.438552][ T7705]  ? sysfs_create_mount_point+0xb0/0xb0
[  490.444192][ T7705]  ? spin_bug+0x1d0/0x1d0
[  490.449418][ T7705]  ? net_namespace+0x12/0x40
[  490.454201][ T7705]  ? device_namespace+0x8d/0xc0
[  490.459060][ T7705]  kobject_add_internal+0x2c8/0x970
[  490.464279][ T7705]  kobject_add+0x16f/0x240
[  490.468884][ T7705]  ? kset_create_and_add+0x190/0x190
[  490.474273][ T7705]  ? do_raw_spin_unlock+0x173/0x230
[  490.479841][ T7705]  ? kobject_put+0xbe/0x440
[  490.484453][ T7705]  ? device_add+0xc35/0x1aa0
[  490.489147][ T7705]  device_add+0x289/0x1aa0
[  490.493806][ T7705]  ? device_initialize+0x510/0x510
[  490.499115][ T7705]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  490.505998][ T7705]  ? __init_waitqueue_head+0xca/0x150
[  490.511494][ T7705]  netdev_register_kobject+0x183/0x3f0
[  490.517080][ T7705]  register_netdevice+0xbe6/0x14b0
[  490.522681][ T7705]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  490.528646][ T7705]  ? validate_linkmsg+0x6fc/0x9c0
[  490.533859][ T7705]  br_dev_newlink+0x27/0x110
[  490.538928][ T7705]  ? br_changelink+0x1760/0x1760
[  490.544447][ T7705]  __rtnl_newlink+0x1173/0x1930
[  490.549668][ T7705]  ? rtnl_link_unregister+0x260/0x260
[  490.555180][ T7705]  rtnl_newlink+0x67/0xa0
[  490.559818][ T7705]  ? __rtnl_newlink+0x1930/0x1930
[  490.564946][ T7705]  rtnetlink_rcv_msg+0x3c7/0xe00
[  490.570013][ T7705]  ? rtnl_fill_vf+0x4a0/0x4a0
[  490.574796][ T7705]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  490.581072][ T7705]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  490.587236][ T7705]  netlink_rcv_skb+0x16b/0x440
[  490.592280][ T7705]  ? rtnl_fill_vf+0x4a0/0x4a0
[  490.597238][ T7705]  ? netlink_ack+0x1380/0x1380
[  490.602270][ T7705]  ? lock_sync+0x190/0x190
[  490.606886][ T7705]  ? netlink_deliver_tap+0x1a0/0xd00
[  490.612450][ T7705]  ? _copy_from_iter+0x2c1/0x10f0
[  490.617599][ T7705]  netlink_unicast+0x53b/0x810
[  490.622597][ T7705]  ? netlink_attachskb+0x880/0x880
[  490.627808][ T7705]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  490.633803][ T7705]  ? __phys_addr_symbol+0x30/0x70
[  490.638841][ T7705]  ? __check_object_size+0x323/0x730
[  490.644223][ T7705]  netlink_sendmsg+0x93c/0xe40
[  490.649020][ T7705]  ? netlink_unicast+0x810/0x810
[  490.653989][ T7705]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  490.659456][ T7705]  ? netlink_unicast+0x810/0x810
[  490.664718][ T7705]  __sock_sendmsg+0xd5/0x180
[  490.669345][ T7705]  ____sys_sendmsg+0x6ac/0x940
[  490.674311][ T7705]  ? copy_msghdr_from_user+0x10b/0x160
[  490.679967][ T7705]  ? kernel_sendmsg+0x50/0x50
[  490.684759][ T7705]  ___sys_sendmsg+0x135/0x1d0
[  490.689587][ T7705]  ? do_recvmmsg+0x740/0x740
[  490.694459][ T7705]  ? find_held_lock+0x2d/0x110
[  490.699245][ T7705]  ? preempt_count_sub+0x160/0x160
[  490.704452][ T7705]  ? __fget_light+0x1fc/0x260
[  490.709224][ T7705]  __sys_sendmsg+0x117/0x1e0
[  490.714152][ T7705]  ? __sys_sendmsg_sock+0x30/0x30
[  490.719285][ T7705]  ? syscall_enter_from_user_mode+0x7f/0x120
[  490.725287][ T7705]  do_syscall_64+0x40/0x110
[  490.729815][ T7705]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  490.735991][ T7705] RIP: 0033:0x7fb700fd30b9
[  490.740419][ T7705] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  490.760500][ T7705] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  490.769105][ T7705] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  490.777342][ T7705] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  490.785331][ T7705] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  490.793461][ T7705] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  490.801489][ T7705] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  490.809636][ T7705]  </TASK>
[  490.816698][ T7705] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  490.866030][ T7706] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  490.876634][ T7706] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  490.886522][ T7706] CPU: 1 PID: 7706 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  490.896621][ T7706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  490.906697][ T7706] Call Trace:
[  490.910095][ T7706]  <TASK>
[  490.913046][ T7706]  dump_stack_lvl+0x125/0x1b0
[  490.917745][ T7706]  sysfs_warn_dup+0x7f/0xa0
[  490.922274][ T7706]  sysfs_create_dir_ns+0x249/0x2b0
[  490.928217][ T7706]  ? sysfs_create_mount_point+0xb0/0xb0
[  490.934128][ T7706]  ? spin_bug+0x1d0/0x1d0
[  490.938571][ T7706]  ? net_namespace+0x12/0x40
[  490.944137][ T7706]  ? device_namespace+0x8d/0xc0
[  490.949354][ T7706]  kobject_add_internal+0x2c8/0x970
[  490.954742][ T7706]  kobject_add+0x16f/0x240
[  490.959703][ T7706]  ? kset_create_and_add+0x190/0x190
[  490.965279][ T7706]  ? do_raw_spin_unlock+0x173/0x230
[  490.970585][ T7706]  ? kobject_put+0xbe/0x440
[  490.975186][ T7706]  ? device_add+0xc35/0x1aa0
[  490.979786][ T7706]  device_add+0x289/0x1aa0
[  490.984646][ T7706]  ? device_initialize+0x510/0x510
[  490.989762][ T7706]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  490.996706][ T7706]  ? __init_waitqueue_head+0xca/0x150
[  491.002880][ T7706]  netdev_register_kobject+0x183/0x3f0
[  491.008364][ T7706]  register_netdevice+0xbe6/0x14b0
[  491.013497][ T7706]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  491.019484][ T7706]  ? validate_linkmsg+0x6fc/0x9c0
[  491.024540][ T7706]  br_dev_newlink+0x27/0x110
[  491.029324][ T7706]  ? br_changelink+0x1760/0x1760
[  491.034484][ T7706]  __rtnl_newlink+0x1173/0x1930
[  491.039379][ T7706]  ? rtnl_link_unregister+0x260/0x260
[  491.044911][ T7706]  rtnl_newlink+0x67/0xa0
[  491.049269][ T7706]  ? __rtnl_newlink+0x1930/0x1930
[  491.054404][ T7706]  rtnetlink_rcv_msg+0x3c7/0xe00
[  491.059437][ T7706]  ? rtnl_fill_vf+0x4a0/0x4a0
[  491.064524][ T7706]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  491.070625][ T7706]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  491.076632][ T7706]  netlink_rcv_skb+0x16b/0x440
[  491.081480][ T7706]  ? rtnl_fill_vf+0x4a0/0x4a0
[  491.086345][ T7706]  ? netlink_ack+0x1380/0x1380
[  491.091291][ T7706]  ? lock_sync+0x190/0x190
[  491.095816][ T7706]  ? netlink_deliver_tap+0x1a0/0xd00
[  491.101735][ T7706]  ? _copy_from_iter+0x2c1/0x10f0
[  491.107040][ T7706]  netlink_unicast+0x53b/0x810
[  491.112088][ T7706]  ? netlink_attachskb+0x880/0x880
[  491.117297][ T7706]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  491.123746][ T7706]  ? __phys_addr_symbol+0x30/0x70
[  491.129059][ T7706]  ? __check_object_size+0x323/0x730
[  491.134468][ T7706]  netlink_sendmsg+0x93c/0xe40
[  491.139254][ T7706]  ? netlink_unicast+0x810/0x810
[  491.144410][ T7706]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  491.149785][ T7706]  ? netlink_unicast+0x810/0x810
[  491.154736][ T7706]  __sock_sendmsg+0xd5/0x180
[  491.159488][ T7706]  ____sys_sendmsg+0x6ac/0x940
[  491.164790][ T7706]  ? copy_msghdr_from_user+0x10b/0x160
[  491.170615][ T7706]  ? kernel_sendmsg+0x50/0x50
[  491.175390][ T7706]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  491.181730][ T7706]  ___sys_sendmsg+0x135/0x1d0
[  491.186426][ T7706]  ? do_recvmmsg+0x740/0x740
[  491.191579][ T7706]  ? find_held_lock+0x2d/0x110
[  491.196454][ T7706]  ? preempt_count_sub+0x160/0x160
[  491.201582][ T7706]  ? __fget_light+0x1fc/0x260
[  491.206312][ T7706]  __sys_sendmsg+0x117/0x1e0
[  491.211000][ T7706]  ? __sys_sendmsg_sock+0x30/0x30
[  491.216310][ T7706]  ? syscall_enter_from_user_mode+0x7f/0x120
[  491.222567][ T7706]  do_syscall_64+0x40/0x110
[  491.227343][ T7706]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  491.233342][ T7706] RIP: 0033:0x7fb700fd30b9
[  491.237965][ T7706] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  491.258111][ T7706] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  491.266612][ T7706] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  491.275884][ T7706] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  491.283938][ T7706] RBP: 000000000007795e R08: 0000000000000000 R09: 0000000000000006
[  491.292033][ T7706] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  491.300092][ T7706] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  491.308171][ T7706]  </TASK>
[  491.315707][ T7706] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  491.346026][ T7706] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  491.355485][ T7706] CPU: 0 PID: 7706 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  491.365733][ T7706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  491.376228][ T7706] Call Trace:
[  491.379694][ T7706]  <TASK>
[  491.382648][ T7706]  dump_stack_lvl+0x125/0x1b0
[  491.387519][ T7706]  sysfs_warn_dup+0x7f/0xa0
[  491.392205][ T7706]  sysfs_create_dir_ns+0x249/0x2b0
[  491.397667][ T7706]  ? sysfs_create_mount_point+0xb0/0xb0
[  491.403486][ T7706]  ? spin_bug+0x1d0/0x1d0
[  491.408045][ T7706]  ? net_namespace+0x12/0x40
[  491.413093][ T7706]  ? device_namespace+0x8d/0xc0
[  491.418296][ T7706]  kobject_add_internal+0x2c8/0x970
[  491.423785][ T7706]  kobject_add+0x16f/0x240
[  491.428390][ T7706]  ? kset_create_and_add+0x190/0x190
[  491.433912][ T7706]  ? do_raw_spin_unlock+0x173/0x230
[  491.439164][ T7706]  ? kobject_put+0xbe/0x440
[  491.443853][ T7706]  ? device_add+0xc35/0x1aa0
[  491.448453][ T7706]  device_add+0x289/0x1aa0
[  491.452957][ T7706]  ? device_initialize+0x510/0x510
[  491.458061][ T7706]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  491.465016][ T7706]  ? __init_waitqueue_head+0xca/0x150
[  491.470513][ T7706]  netdev_register_kobject+0x183/0x3f0
[  491.476018][ T7706]  register_netdevice+0xbe6/0x14b0
[  491.481435][ T7706]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  491.487715][ T7706]  ? validate_linkmsg+0x6fc/0x9c0
[  491.492768][ T7706]  br_dev_newlink+0x27/0x110
[  491.497651][ T7706]  ? br_changelink+0x1760/0x1760
[  491.502781][ T7706]  __rtnl_newlink+0x1173/0x1930
[  491.509041][ T7706]  ? rtnl_link_unregister+0x260/0x260
[  491.514537][ T7706]  rtnl_newlink+0x67/0xa0
[  491.518906][ T7706]  ? __rtnl_newlink+0x1930/0x1930
[  491.524152][ T7706]  rtnetlink_rcv_msg+0x3c7/0xe00
[  491.529389][ T7706]  ? rtnl_fill_vf+0x4a0/0x4a0
[  491.534081][ T7706]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  491.540358][ T7706]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  491.546537][ T7706]  netlink_rcv_skb+0x16b/0x440
[  491.551320][ T7706]  ? rtnl_fill_vf+0x4a0/0x4a0
[  491.556272][ T7706]  ? netlink_ack+0x1380/0x1380
[  491.561046][ T7706]  ? lock_sync+0x190/0x190
[  491.565587][ T7706]  ? netlink_deliver_tap+0x1a0/0xd00
[  491.571848][ T7706]  ? _copy_from_iter+0x2c1/0x10f0
[  491.577176][ T7706]  netlink_unicast+0x53b/0x810
[  491.582081][ T7706]  ? netlink_attachskb+0x880/0x880
[  491.587298][ T7706]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  491.593211][ T7706]  ? __phys_addr_symbol+0x30/0x70
[  491.598331][ T7706]  ? __check_object_size+0x323/0x730
[  491.603716][ T7706]  netlink_sendmsg+0x93c/0xe40
[  491.608582][ T7706]  ? netlink_unicast+0x810/0x810
[  491.613572][ T7706]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  491.619100][ T7706]  ? netlink_unicast+0x810/0x810
[  491.624260][ T7706]  __sock_sendmsg+0xd5/0x180
[  491.628901][ T7706]  ____sys_sendmsg+0x6ac/0x940
[  491.633861][ T7706]  ? copy_msghdr_from_user+0x10b/0x160
[  491.639345][ T7706]  ? kernel_sendmsg+0x50/0x50
[  491.644133][ T7706]  ___sys_sendmsg+0x135/0x1d0
[  491.648916][ T7706]  ? do_recvmmsg+0x740/0x740
[  491.653776][ T7706]  ? find_held_lock+0x2d/0x110
[  491.658995][ T7706]  ? preempt_count_sub+0x160/0x160
[  491.664821][ T7706]  ? __fget_light+0x1fc/0x260
[  491.669592][ T7706]  __sys_sendmsg+0x117/0x1e0
[  491.674469][ T7706]  ? __sys_sendmsg_sock+0x30/0x30
[  491.679641][ T7706]  ? syscall_enter_from_user_mode+0x7f/0x120
[  491.686028][ T7706]  do_syscall_64+0x40/0x110
[  491.690631][ T7706]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  491.696805][ T7706] RIP: 0033:0x7fb700fd30b9
[  491.701312][ T7706] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  491.724076][ T7706] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  491.732681][ T7706] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  491.741359][ T7706] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  491.749683][ T7706] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  491.758266][ T7706] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  491.766650][ T7706] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  491.775010][ T7706]  </TASK>
[  491.779401][ T7706] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  491.807882][ T7707] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  491.832943][ T7707] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  491.842549][ T7707] CPU: 0 PID: 7707 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  491.852731][ T7707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  491.863514][ T7707] Call Trace:
[  491.866907][ T7707]  <TASK>
[  491.870055][ T7707]  dump_stack_lvl+0x125/0x1b0
[  491.875006][ T7707]  sysfs_warn_dup+0x7f/0xa0
[  491.879705][ T7707]  sysfs_create_dir_ns+0x249/0x2b0
[  491.884999][ T7707]  ? sysfs_create_mount_point+0xb0/0xb0
[  491.890562][ T7707]  ? spin_bug+0x1d0/0x1d0
[  491.894896][ T7707]  ? net_namespace+0x12/0x40
[  491.899749][ T7707]  ? device_namespace+0x8d/0xc0
[  491.904617][ T7707]  kobject_add_internal+0x2c8/0x970
[  491.909875][ T7707]  kobject_add+0x16f/0x240
[  491.914297][ T7707]  ? kset_create_and_add+0x190/0x190
[  491.919646][ T7707]  ? do_raw_spin_unlock+0x173/0x230
[  491.924858][ T7707]  ? kobject_put+0xbe/0x440
[  491.929656][ T7707]  ? device_add+0xc35/0x1aa0
[  491.934370][ T7707]  device_add+0x289/0x1aa0
[  491.938807][ T7707]  ? device_initialize+0x510/0x510
[  491.944311][ T7707]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  491.951657][ T7707]  ? __init_waitqueue_head+0xca/0x150
[  491.957583][ T7707]  netdev_register_kobject+0x183/0x3f0
[  491.964021][ T7707]  register_netdevice+0xbe6/0x14b0
[  491.969281][ T7707]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  491.975629][ T7707]  ? validate_linkmsg+0x6fc/0x9c0
[  491.980936][ T7707]  br_dev_newlink+0x27/0x110
[  491.985830][ T7707]  ? br_changelink+0x1760/0x1760
[  491.991304][ T7707]  __rtnl_newlink+0x1173/0x1930
[  491.996994][ T7707]  ? rtnl_link_unregister+0x260/0x260
[  492.002752][ T7707]  rtnl_newlink+0x67/0xa0
[  492.007262][ T7707]  ? __rtnl_newlink+0x1930/0x1930
[  492.012557][ T7707]  rtnetlink_rcv_msg+0x3c7/0xe00
[  492.017595][ T7707]  ? rtnl_fill_vf+0x4a0/0x4a0
[  492.023068][ T7707]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  492.029263][ T7707]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  492.035442][ T7707]  netlink_rcv_skb+0x16b/0x440
[  492.040334][ T7707]  ? rtnl_fill_vf+0x4a0/0x4a0
[  492.045214][ T7707]  ? netlink_ack+0x1380/0x1380
[  492.050639][ T7707]  ? lock_sync+0x190/0x190
[  492.055170][ T7707]  ? netlink_deliver_tap+0x1a0/0xd00
[  492.060855][ T7707]  ? _copy_from_iter+0x2c1/0x10f0
[  492.066512][ T7707]  netlink_unicast+0x53b/0x810
[  492.071411][ T7707]  ? netlink_attachskb+0x880/0x880
[  492.076940][ T7707]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  492.083749][ T7707]  ? __phys_addr_symbol+0x30/0x70
[  492.089193][ T7707]  ? __check_object_size+0x323/0x730
[  492.094756][ T7707]  netlink_sendmsg+0x93c/0xe40
[  492.099549][ T7707]  ? netlink_unicast+0x810/0x810
[  492.104765][ T7707]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  492.110227][ T7707]  ? netlink_unicast+0x810/0x810
[  492.115178][ T7707]  __sock_sendmsg+0xd5/0x180
[  492.120442][ T7707]  ____sys_sendmsg+0x6ac/0x940
[  492.125960][ T7707]  ? copy_msghdr_from_user+0x10b/0x160
[  492.131971][ T7707]  ? kernel_sendmsg+0x50/0x50
[  492.136665][ T7707]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  492.143200][ T7707]  ___sys_sendmsg+0x135/0x1d0
[  492.147978][ T7707]  ? do_recvmmsg+0x740/0x740
[  492.152658][ T7707]  ? find_held_lock+0x2d/0x110
[  492.158069][ T7707]  ? preempt_count_sub+0x160/0x160
[  492.163374][ T7707]  ? __fget_light+0x1fc/0x260
[  492.168054][ T7707]  __sys_sendmsg+0x117/0x1e0
[  492.172832][ T7707]  ? __sys_sendmsg_sock+0x30/0x30
[  492.177966][ T7707]  ? syscall_enter_from_user_mode+0x7f/0x120
[  492.184140][ T7707]  do_syscall_64+0x40/0x110
[  492.188822][ T7707]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  492.195769][ T7707] RIP: 0033:0x7fb700fd30b9
[  492.200185][ T7707] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  492.220501][ T7707] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  492.229616][ T7707] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  492.238347][ T7707] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  492.246579][ T7707] RBP: 0000000000077d45 R08: 0000000000000000 R09: 0000000000000006
[  492.254639][ T7707] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  492.262982][ T7707] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  492.271006][ T7707]  </TASK>
[  492.275669][ T7707] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  492.308985][ T7707] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  492.322811][ T7707] CPU: 1 PID: 7707 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  492.333603][ T7707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  492.344042][ T7707] Call Trace:
[  492.347362][ T7707]  <TASK>
[  492.350413][ T7707]  dump_stack_lvl+0x125/0x1b0
[  492.355482][ T7707]  sysfs_warn_dup+0x7f/0xa0
[  492.360118][ T7707]  sysfs_create_dir_ns+0x249/0x2b0
[  492.365536][ T7707]  ? sysfs_create_mount_point+0xb0/0xb0
[  492.371651][ T7707]  ? spin_bug+0x1d0/0x1d0
[  492.376112][ T7707]  ? net_namespace+0x12/0x40
[  492.380933][ T7707]  ? device_namespace+0x8d/0xc0
[  492.386296][ T7707]  kobject_add_internal+0x2c8/0x970
[  492.391729][ T7707]  kobject_add+0x16f/0x240
[  492.396368][ T7707]  ? kset_create_and_add+0x190/0x190
[  492.401678][ T7707]  ? do_raw_spin_unlock+0x173/0x230
[  492.407070][ T7707]  ? kobject_put+0xbe/0x440
[  492.411761][ T7707]  ? device_add+0xc35/0x1aa0
[  492.416458][ T7707]  device_add+0x289/0x1aa0
[  492.421146][ T7707]  ? device_initialize+0x510/0x510
[  492.426352][ T7707]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  492.433227][ T7707]  ? __init_waitqueue_head+0xca/0x150
[  492.438983][ T7707]  netdev_register_kobject+0x183/0x3f0
[  492.444557][ T7707]  register_netdevice+0xbe6/0x14b0
[  492.449766][ T7707]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  492.455760][ T7707]  ? validate_linkmsg+0x6fc/0x9c0
[  492.461040][ T7707]  br_dev_newlink+0x27/0x110
[  492.465813][ T7707]  ? br_changelink+0x1760/0x1760
[  492.470857][ T7707]  __rtnl_newlink+0x1173/0x1930
[  492.476091][ T7707]  ? rtnl_link_unregister+0x260/0x260
[  492.482115][ T7707]  rtnl_newlink+0x67/0xa0
[  492.487076][ T7707]  ? __rtnl_newlink+0x1930/0x1930
[  492.492297][ T7707]  rtnetlink_rcv_msg+0x3c7/0xe00
[  492.497519][ T7707]  ? rtnl_fill_vf+0x4a0/0x4a0
[  492.502381][ T7707]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  492.508660][ T7707]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  492.514947][ T7707]  netlink_rcv_skb+0x16b/0x440
[  492.520078][ T7707]  ? rtnl_fill_vf+0x4a0/0x4a0
[  492.524771][ T7707]  ? netlink_ack+0x1380/0x1380
[  492.529547][ T7707]  ? lock_sync+0x190/0x190
[  492.534248][ T7707]  ? netlink_deliver_tap+0x1a0/0xd00
[  492.539890][ T7707]  ? _copy_from_iter+0x2c1/0x10f0
[  492.545053][ T7707]  netlink_unicast+0x53b/0x810
[  492.550152][ T7707]  ? netlink_attachskb+0x880/0x880
[  492.555555][ T7707]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  492.561678][ T7707]  ? __phys_addr_symbol+0x30/0x70
[  492.567154][ T7707]  ? __check_object_size+0x323/0x730
[  492.572463][ T7707]  netlink_sendmsg+0x93c/0xe40
[  492.577468][ T7707]  ? netlink_unicast+0x810/0x810
[  492.582425][ T7707]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  492.587719][ T7707]  ? netlink_unicast+0x810/0x810
[  492.592850][ T7707]  __sock_sendmsg+0xd5/0x180
[  492.597796][ T7707]  ____sys_sendmsg+0x6ac/0x940
[  492.603286][ T7707]  ? copy_msghdr_from_user+0x10b/0x160
[  492.609712][ T7707]  ? kernel_sendmsg+0x50/0x50
[  492.614671][ T7707]  ___sys_sendmsg+0x135/0x1d0
[  492.619714][ T7707]  ? do_recvmmsg+0x740/0x740
[  492.624351][ T7707]  ? find_held_lock+0x2d/0x110
[  492.629572][ T7707]  ? preempt_count_sub+0x160/0x160
[  492.634874][ T7707]  ? __fget_light+0x1fc/0x260
[  492.639824][ T7707]  __sys_sendmsg+0x117/0x1e0
[  492.644686][ T7707]  ? __sys_sendmsg_sock+0x30/0x30
[  492.650015][ T7707]  ? syscall_enter_from_user_mode+0x7f/0x120
[  492.656031][ T7707]  do_syscall_64+0x40/0x110
[  492.660629][ T7707]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  492.666622][ T7707] RIP: 0033:0x7fb700fd30b9
[  492.671259][ T7707] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  492.691338][ T7707] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  492.699845][ T7707] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  492.708456][ T7707] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  492.717208][ T7707] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  492.725530][ T7707] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  492.733527][ T7707] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  492.741887][ T7707]  </TASK>
[  492.759233][ T7707] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  492.802315][ T7711] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  492.813708][ T7711] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  492.823367][ T7711] CPU: 0 PID: 7711 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  492.833728][ T7711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  492.845467][ T7711] Call Trace:
[  492.848857][ T7711]  <TASK>
[  492.851817][ T7711]  dump_stack_lvl+0x125/0x1b0
[  492.856623][ T7711]  sysfs_warn_dup+0x7f/0xa0
[  492.864757][ T7711]  sysfs_create_dir_ns+0x249/0x2b0
[  492.870087][ T7711]  ? sysfs_create_mount_point+0xb0/0xb0
[  492.875733][ T7711]  ? spin_bug+0x1d0/0x1d0
[  492.880243][ T7711]  ? net_namespace+0x12/0x40
[  492.884853][ T7711]  ? device_namespace+0x8d/0xc0
[  492.889917][ T7711]  kobject_add_internal+0x2c8/0x970
[  492.895912][ T7711]  kobject_add+0x16f/0x240
[  492.900521][ T7711]  ? kset_create_and_add+0x190/0x190
[  492.905909][ T7711]  ? do_raw_spin_unlock+0x173/0x230
[  492.911355][ T7711]  ? kobject_put+0xbe/0x440
[  492.916678][ T7711]  ? device_add+0xc35/0x1aa0
[  492.921813][ T7711]  device_add+0x289/0x1aa0
[  492.926397][ T7711]  ? device_initialize+0x510/0x510
[  492.931922][ T7711]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  492.940391][ T7711]  ? __init_waitqueue_head+0xca/0x150
[  492.946389][ T7711]  netdev_register_kobject+0x183/0x3f0
[  492.954175][ T7711]  register_netdevice+0xbe6/0x14b0
[  492.959483][ T7711]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  492.965668][ T7711]  ? validate_linkmsg+0x6fc/0x9c0
[  492.970893][ T7711]  br_dev_newlink+0x27/0x110
[  492.975602][ T7711]  ? br_changelink+0x1760/0x1760
[  492.981188][ T7711]  __rtnl_newlink+0x1173/0x1930
[  492.986860][ T7711]  ? rtnl_link_unregister+0x260/0x260
[  492.992721][ T7711]  rtnl_newlink+0x67/0xa0
[  492.997536][ T7711]  ? __rtnl_newlink+0x1930/0x1930
[  493.002568][ T7711]  rtnetlink_rcv_msg+0x3c7/0xe00
[  493.007689][ T7711]  ? rtnl_fill_vf+0x4a0/0x4a0
[  493.012741][ T7711]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  493.019100][ T7711]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  493.025275][ T7711]  netlink_rcv_skb+0x16b/0x440
[  493.030342][ T7711]  ? rtnl_fill_vf+0x4a0/0x4a0
[  493.035391][ T7711]  ? netlink_ack+0x1380/0x1380
[  493.040291][ T7711]  ? lock_sync+0x190/0x190
[  493.044852][ T7711]  ? netlink_deliver_tap+0x1a0/0xd00
[  493.051982][ T7711]  ? _copy_from_iter+0x2c1/0x10f0
[  493.057419][ T7711]  netlink_unicast+0x53b/0x810
[  493.062232][ T7711]  ? netlink_attachskb+0x880/0x880
[  493.067634][ T7711]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  493.073747][ T7711]  ? __phys_addr_symbol+0x30/0x70
[  493.078963][ T7711]  ? __check_object_size+0x323/0x730
[  493.084266][ T7711]  netlink_sendmsg+0x93c/0xe40
[  493.089052][ T7711]  ? netlink_unicast+0x810/0x810
[  493.094109][ T7711]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  493.099407][ T7711]  ? netlink_unicast+0x810/0x810
[  493.104467][ T7711]  __sock_sendmsg+0xd5/0x180
[  493.109203][ T7711]  ____sys_sendmsg+0x6ac/0x940
[  493.114284][ T7711]  ? copy_msghdr_from_user+0x10b/0x160
[  493.119861][ T7711]  ? kernel_sendmsg+0x50/0x50
[  493.124912][ T7711]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  493.131344][ T7711]  ___sys_sendmsg+0x135/0x1d0
[  493.136206][ T7711]  ? do_recvmmsg+0x740/0x740
[  493.140995][ T7711]  ? find_held_lock+0x2d/0x110
[  493.145972][ T7711]  ? preempt_count_sub+0x160/0x160
[  493.151210][ T7711]  ? __fget_light+0x1fc/0x260
[  493.156003][ T7711]  __sys_sendmsg+0x117/0x1e0
[  493.161058][ T7711]  ? __sys_sendmsg_sock+0x30/0x30
[  493.167191][ T7711]  ? syscall_enter_from_user_mode+0x7f/0x120
[  493.173460][ T7711]  do_syscall_64+0x40/0x110
[  493.178414][ T7711]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  493.184475][ T7711] RIP: 0033:0x7fb700fd30b9
[  493.189049][ T7711] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  493.209443][ T7711] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  493.219137][ T7711] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  493.227302][ T7711] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  493.235551][ T7711] RBP: 00000000000780f1 R08: 0000000000000000 R09: 0000000000000006
[  493.243699][ T7711] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  493.252045][ T7711] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  493.260218][ T7711]  </TASK>
[  493.267069][ T7711] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  493.315860][ T7711] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  493.325872][ T7711] CPU: 0 PID: 7711 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  493.336365][ T7711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  493.346626][ T7711] Call Trace:
[  493.350190][ T7711]  <TASK>
[  493.353321][ T7711]  dump_stack_lvl+0x125/0x1b0
[  493.358089][ T7711]  sysfs_warn_dup+0x7f/0xa0
[  493.362618][ T7711]  sysfs_create_dir_ns+0x249/0x2b0
[  493.367928][ T7711]  ? sysfs_create_mount_point+0xb0/0xb0
[  493.373673][ T7711]  ? spin_bug+0x1d0/0x1d0
[  493.378367][ T7711]  ? net_namespace+0x12/0x40
[  493.382971][ T7711]  ? device_namespace+0x8d/0xc0
[  493.388194][ T7711]  kobject_add_internal+0x2c8/0x970
[  493.393643][ T7711]  kobject_add+0x16f/0x240
[  493.398262][ T7711]  ? kset_create_and_add+0x190/0x190
[  493.403843][ T7711]  ? do_raw_spin_unlock+0x173/0x230
[  493.409158][ T7711]  ? kobject_put+0xbe/0x440
[  493.413852][ T7711]  ? device_add+0xc35/0x1aa0
[  493.418901][ T7711]  device_add+0x289/0x1aa0
[  493.423505][ T7711]  ? device_initialize+0x510/0x510
[  493.429341][ T7711]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  493.437143][ T7711]  ? __init_waitqueue_head+0xca/0x150
[  493.443264][ T7711]  netdev_register_kobject+0x183/0x3f0
[  493.449520][ T7711]  register_netdevice+0xbe6/0x14b0
[  493.454843][ T7711]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  493.460997][ T7711]  ? validate_linkmsg+0x6fc/0x9c0
[  493.466574][ T7711]  br_dev_newlink+0x27/0x110
[  493.471280][ T7711]  ? br_changelink+0x1760/0x1760
[  493.476224][ T7711]  __rtnl_newlink+0x1173/0x1930
[  493.481622][ T7711]  ? rtnl_link_unregister+0x260/0x260
[  493.487903][ T7711]  rtnl_newlink+0x67/0xa0
[  493.492362][ T7711]  ? __rtnl_newlink+0x1930/0x1930
[  493.497786][ T7711]  rtnetlink_rcv_msg+0x3c7/0xe00
[  493.503022][ T7711]  ? rtnl_fill_vf+0x4a0/0x4a0
[  493.508127][ T7711]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  493.514326][ T7711]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  493.520684][ T7711]  netlink_rcv_skb+0x16b/0x440
[  493.525587][ T7711]  ? rtnl_fill_vf+0x4a0/0x4a0
[  493.530550][ T7711]  ? netlink_ack+0x1380/0x1380
[  493.535506][ T7711]  ? lock_sync+0x190/0x190
[  493.540224][ T7711]  ? netlink_deliver_tap+0x1a0/0xd00
[  493.545994][ T7711]  ? _copy_from_iter+0x2c1/0x10f0
[  493.551236][ T7711]  netlink_unicast+0x53b/0x810
[  493.556591][ T7711]  ? netlink_attachskb+0x880/0x880
[  493.562099][ T7711]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  493.568208][ T7711]  ? __phys_addr_symbol+0x30/0x70
[  493.573528][ T7711]  ? __check_object_size+0x323/0x730
[  493.579006][ T7711]  netlink_sendmsg+0x93c/0xe40
[  493.583948][ T7711]  ? netlink_unicast+0x810/0x810
[  493.588975][ T7711]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  493.594274][ T7711]  ? netlink_unicast+0x810/0x810
[  493.599312][ T7711]  __sock_sendmsg+0xd5/0x180
[  493.604464][ T7711]  ____sys_sendmsg+0x6ac/0x940
[  493.609671][ T7711]  ? copy_msghdr_from_user+0x10b/0x160
[  493.615509][ T7711]  ? kernel_sendmsg+0x50/0x50
[  493.620338][ T7711]  ___sys_sendmsg+0x135/0x1d0
[  493.625677][ T7711]  ? do_recvmmsg+0x740/0x740
[  493.630393][ T7711]  ? find_held_lock+0x2d/0x110
[  493.637270][ T7711]  ? preempt_count_sub+0x160/0x160
[  493.642661][ T7711]  ? __fget_light+0x1fc/0x260
[  493.648204][ T7711]  __sys_sendmsg+0x117/0x1e0
[  493.653110][ T7711]  ? __sys_sendmsg_sock+0x30/0x30
[  493.658431][ T7711]  ? syscall_enter_from_user_mode+0x7f/0x120
[  493.664798][ T7711]  do_syscall_64+0x40/0x110
[  493.669337][ T7711]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  493.675354][ T7711] RIP: 0033:0x7fb700fd30b9
[  493.679967][ T7711] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  493.700626][ T7711] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  493.709158][ T7711] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  493.717308][ T7711] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  493.725459][ T7711] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  493.733607][ T7711] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  493.741797][ T7711] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  493.749911][ T7711]  </TASK>
[  493.753881][ T7711] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  493.812096][ T7714] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  493.823486][ T7714] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  493.833668][ T7714] CPU: 0 PID: 7714 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  493.845208][ T7714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  493.856523][ T7714] Call Trace:
[  493.860522][ T7714]  <TASK>
[  493.863835][ T7714]  dump_stack_lvl+0x125/0x1b0
[  493.868539][ T7714]  sysfs_warn_dup+0x7f/0xa0
[  493.873135][ T7714]  sysfs_create_dir_ns+0x249/0x2b0
[  493.878680][ T7714]  ? sysfs_create_mount_point+0xb0/0xb0
[  493.884360][ T7714]  ? spin_bug+0x1d0/0x1d0
[  493.888894][ T7714]  ? net_namespace+0x12/0x40
[  493.893665][ T7714]  ? device_namespace+0x8d/0xc0
[  493.898644][ T7714]  kobject_add_internal+0x2c8/0x970
[  493.904034][ T7714]  kobject_add+0x16f/0x240
[  493.908492][ T7714]  ? kset_create_and_add+0x190/0x190
[  493.914657][ T7714]  ? kobject_put+0xbe/0x440
[  493.919546][ T7714]  ? device_add+0xc35/0x1aa0
[  493.924436][ T7714]  device_add+0x289/0x1aa0
[  493.929391][ T7714]  ? device_initialize+0x510/0x510
[  493.935166][ T7714]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  493.942588][ T7714]  ? __init_waitqueue_head+0xca/0x150
[  493.948240][ T7714]  netdev_register_kobject+0x183/0x3f0
[  493.954500][ T7714]  register_netdevice+0xbe6/0x14b0
[  493.959830][ T7714]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  493.965856][ T7714]  ? validate_linkmsg+0x6fc/0x9c0
[  493.970899][ T7714]  br_dev_newlink+0x27/0x110
[  493.975959][ T7714]  ? br_changelink+0x1760/0x1760
[  493.981007][ T7714]  __rtnl_newlink+0x1173/0x1930
[  493.985974][ T7714]  ? rtnl_link_unregister+0x260/0x260
[  493.991643][ T7714]  rtnl_newlink+0x67/0xa0
[  493.995981][ T7714]  ? __rtnl_newlink+0x1930/0x1930
[  494.001108][ T7714]  rtnetlink_rcv_msg+0x3c7/0xe00
[  494.006505][ T7714]  ? rtnl_fill_vf+0x4a0/0x4a0
[  494.012127][ T7714]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  494.018389][ T7714]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  494.024494][ T7714]  netlink_rcv_skb+0x16b/0x440
[  494.029382][ T7714]  ? rtnl_fill_vf+0x4a0/0x4a0
[  494.034274][ T7714]  ? netlink_ack+0x1380/0x1380
[  494.039245][ T7714]  ? lock_sync+0x190/0x190
[  494.043944][ T7714]  ? netlink_deliver_tap+0x1a0/0xd00
[  494.049368][ T7714]  ? _copy_from_iter+0x2c1/0x10f0
[  494.054671][ T7714]  netlink_unicast+0x53b/0x810
[  494.059614][ T7714]  ? netlink_attachskb+0x880/0x880
[  494.065099][ T7714]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  494.071431][ T7714]  ? __phys_addr_symbol+0x30/0x70
[  494.076639][ T7714]  ? __check_object_size+0x323/0x730
[  494.082030][ T7714]  netlink_sendmsg+0x93c/0xe40
[  494.086907][ T7714]  ? netlink_unicast+0x810/0x810
[  494.091964][ T7714]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  494.097412][ T7714]  ? netlink_unicast+0x810/0x810
[  494.102463][ T7714]  __sock_sendmsg+0xd5/0x180
[  494.107497][ T7714]  ____sys_sendmsg+0x6ac/0x940
[  494.112782][ T7714]  ? copy_msghdr_from_user+0x10b/0x160
[  494.118621][ T7714]  ? kernel_sendmsg+0x50/0x50
[  494.123620][ T7714]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  494.130005][ T7714]  ___sys_sendmsg+0x135/0x1d0
[  494.135155][ T7714]  ? do_recvmmsg+0x740/0x740
[  494.140468][ T7714]  ? find_held_lock+0x2d/0x110
[  494.145255][ T7714]  ? preempt_count_sub+0x160/0x160
[  494.150593][ T7714]  ? __fget_light+0x1fc/0x260
[  494.156329][ T7714]  __sys_sendmsg+0x117/0x1e0
[  494.161240][ T7714]  ? __sys_sendmsg_sock+0x30/0x30
[  494.166795][ T7714]  ? xfd_validate_state+0x5d/0x180
[  494.172455][ T7714]  ? syscall_enter_from_user_mode+0x7f/0x120
[  494.178562][ T7714]  do_syscall_64+0x40/0x110
[  494.183337][ T7714]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  494.189783][ T7714] RIP: 0033:0x7fb700fd30b9
[  494.194659][ T7714] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  494.214617][ T7714] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  494.223308][ T7714] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  494.231656][ T7714] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  494.240322][ T7714] RBP: 00000000000784d5 R08: 0000000000000000 R09: 0000000000000006
[  494.248813][ T7714] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  494.256960][ T7714] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  494.265297][ T7714]  </TASK>
[  494.270061][ T7714] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  494.338132][ T7714] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  494.347834][ T7714] CPU: 0 PID: 7714 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  494.358172][ T7714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  494.368492][ T7714] Call Trace:
[  494.371960][ T7714]  <TASK>
[  494.375104][ T7714]  dump_stack_lvl+0x125/0x1b0
[  494.380113][ T7714]  sysfs_warn_dup+0x7f/0xa0
[  494.384877][ T7714]  sysfs_create_dir_ns+0x249/0x2b0
[  494.390792][ T7714]  ? sysfs_create_mount_point+0xb0/0xb0
[  494.396441][ T7714]  ? spin_bug+0x1d0/0x1d0
[  494.401120][ T7714]  ? net_namespace+0x12/0x40
[  494.406384][ T7714]  ? device_namespace+0x8d/0xc0
[  494.411624][ T7714]  kobject_add_internal+0x2c8/0x970
[  494.417135][ T7714]  kobject_add+0x16f/0x240
[  494.422228][ T7714]  ? kset_create_and_add+0x190/0x190
[  494.427632][ T7714]  ? do_raw_spin_unlock+0x173/0x230
[  494.433584][ T7714]  ? kobject_put+0xbe/0x440
[  494.438622][ T7714]  ? device_add+0xc35/0x1aa0
[  494.443662][ T7714]  device_add+0x289/0x1aa0
[  494.448701][ T7714]  ? device_initialize+0x510/0x510
[  494.454251][ T7714]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  494.461635][ T7714]  ? __init_waitqueue_head+0xca/0x150
[  494.467472][ T7714]  netdev_register_kobject+0x183/0x3f0
[  494.473579][ T7714]  register_netdevice+0xbe6/0x14b0
[  494.479016][ T7714]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  494.485369][ T7714]  ? validate_linkmsg+0x6fc/0x9c0
[  494.490499][ T7714]  br_dev_newlink+0x27/0x110
[  494.496057][ T7714]  ? br_changelink+0x1760/0x1760
[  494.501893][ T7714]  __rtnl_newlink+0x1173/0x1930
[  494.507274][ T7714]  ? rtnl_link_unregister+0x260/0x260
[  494.513376][ T7714]  rtnl_newlink+0x67/0xa0
[  494.518236][ T7714]  ? __rtnl_newlink+0x1930/0x1930
[  494.523606][ T7714]  rtnetlink_rcv_msg+0x3c7/0xe00
[  494.528829][ T7714]  ? rtnl_fill_vf+0x4a0/0x4a0
[  494.533515][ T7714]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  494.539683][ T7714]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  494.546212][ T7714]  netlink_rcv_skb+0x16b/0x440
[  494.551097][ T7714]  ? rtnl_fill_vf+0x4a0/0x4a0
[  494.555982][ T7714]  ? netlink_ack+0x1380/0x1380
[  494.561060][ T7714]  ? lock_sync+0x190/0x190
[  494.565699][ T7714]  ? netlink_deliver_tap+0x1a0/0xd00
[  494.571349][ T7714]  ? _copy_from_iter+0x2c1/0x10f0
[  494.576403][ T7714]  netlink_unicast+0x53b/0x810
[  494.581185][ T7714]  ? netlink_attachskb+0x880/0x880
[  494.586394][ T7714]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  494.592386][ T7714]  ? __phys_addr_symbol+0x30/0x70
[  494.597438][ T7714]  ? __check_object_size+0x323/0x730
[  494.603202][ T7714]  netlink_sendmsg+0x93c/0xe40
[  494.608338][ T7714]  ? netlink_unicast+0x810/0x810
[  494.613901][ T7714]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  494.622148][ T7714]  ? netlink_unicast+0x810/0x810
[  494.627533][ T7714]  __sock_sendmsg+0xd5/0x180
[  494.632145][ T7714]  ____sys_sendmsg+0x6ac/0x940
[  494.637006][ T7714]  ? copy_msghdr_from_user+0x10b/0x160
[  494.642647][ T7714]  ? kernel_sendmsg+0x50/0x50
[  494.647366][ T7714]  ___sys_sendmsg+0x135/0x1d0
[  494.652252][ T7714]  ? do_recvmmsg+0x740/0x740
[  494.657024][ T7714]  ? find_held_lock+0x2d/0x110
[  494.661914][ T7714]  ? preempt_count_sub+0x160/0x160
[  494.667216][ T7714]  ? __fget_light+0x1fc/0x260
[  494.672195][ T7714]  __sys_sendmsg+0x117/0x1e0
[  494.677236][ T7714]  ? __sys_sendmsg_sock+0x30/0x30
[  494.682269][ T7714]  ? xfd_validate_state+0x5d/0x180
[  494.688190][ T7714]  ? syscall_enter_from_user_mode+0x7f/0x120
[  494.694456][ T7714]  do_syscall_64+0x40/0x110
[  494.699055][ T7714]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  494.704960][ T7714] RIP: 0033:0x7fb700fd30b9
[  494.709639][ T7714] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  494.729969][ T7714] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  494.738508][ T7714] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  494.746902][ T7714] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  494.754986][ T7714] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  494.763152][ T7714] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  494.771220][ T7714] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  494.779529][ T7714]  </TASK>
[  494.783835][ T7714] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  494.839778][ T7715] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  494.850716][ T7715] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  494.860401][ T7715] CPU: 0 PID: 7715 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  494.871035][ T7715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  494.881179][ T7715] Call Trace:
[  494.884581][ T7715]  <TASK>
[  494.887529][ T7715]  dump_stack_lvl+0x125/0x1b0
[  494.892316][ T7715]  sysfs_warn_dup+0x7f/0xa0
[  494.896848][ T7715]  sysfs_create_dir_ns+0x249/0x2b0
[  494.902068][ T7715]  ? sysfs_create_mount_point+0xb0/0xb0
[  494.908686][ T7715]  ? spin_bug+0x1d0/0x1d0
[  494.913930][ T7715]  ? net_namespace+0x12/0x40
[  494.918639][ T7715]  ? device_namespace+0x8d/0xc0
[  494.923534][ T7715]  kobject_add_internal+0x2c8/0x970
[  494.928763][ T7715]  kobject_add+0x16f/0x240
[  494.933623][ T7715]  ? kset_create_and_add+0x190/0x190
[  494.939350][ T7715]  ? do_raw_spin_unlock+0x173/0x230
[  494.944839][ T7715]  ? kobject_put+0xbe/0x440
[  494.949820][ T7715]  ? device_add+0xc35/0x1aa0
[  494.955039][ T7715]  device_add+0x289/0x1aa0
[  494.959674][ T7715]  ? device_initialize+0x510/0x510
[  494.965746][ T7715]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  494.972923][ T7715]  ? __init_waitqueue_head+0xca/0x150
[  494.981760][ T7715]  netdev_register_kobject+0x183/0x3f0
[  494.987982][ T7715]  register_netdevice+0xbe6/0x14b0
[  494.993235][ T7715]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  494.999244][ T7715]  ? validate_linkmsg+0x6fc/0x9c0
[  495.004651][ T7715]  br_dev_newlink+0x27/0x110
[  495.009289][ T7715]  ? br_changelink+0x1760/0x1760
[  495.014609][ T7715]  __rtnl_newlink+0x1173/0x1930
[  495.019508][ T7715]  ? rtnl_link_unregister+0x260/0x260
[  495.025153][ T7715]  rtnl_newlink+0x67/0xa0
[  495.029644][ T7715]  ? __rtnl_newlink+0x1930/0x1930
[  495.034719][ T7715]  rtnetlink_rcv_msg+0x3c7/0xe00
[  495.039715][ T7715]  ? rtnl_fill_vf+0x4a0/0x4a0
[  495.044410][ T7715]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  495.050793][ T7715]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  495.056916][ T7715]  netlink_rcv_skb+0x16b/0x440
[  495.061816][ T7715]  ? rtnl_fill_vf+0x4a0/0x4a0
[  495.066529][ T7715]  ? netlink_ack+0x1380/0x1380
[  495.071593][ T7715]  ? lock_sync+0x190/0x190
[  495.076441][ T7715]  ? netlink_deliver_tap+0x1a0/0xd00
[  495.082025][ T7715]  ? _copy_from_iter+0x2c1/0x10f0
[  495.087429][ T7715]  netlink_unicast+0x53b/0x810
[  495.092299][ T7715]  ? netlink_attachskb+0x880/0x880
[  495.097595][ T7715]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  495.103689][ T7715]  ? __phys_addr_symbol+0x30/0x70
[  495.109110][ T7715]  ? __check_object_size+0x323/0x730
[  495.114684][ T7715]  netlink_sendmsg+0x93c/0xe40
[  495.119829][ T7715]  ? netlink_unicast+0x810/0x810
[  495.125350][ T7715]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  495.130867][ T7715]  ? netlink_unicast+0x810/0x810
[  495.136616][ T7715]  __sock_sendmsg+0xd5/0x180
[  495.141399][ T7715]  ____sys_sendmsg+0x6ac/0x940
[  495.146268][ T7715]  ? copy_msghdr_from_user+0x10b/0x160
[  495.152102][ T7715]  ? kernel_sendmsg+0x50/0x50
[  495.157055][ T7715]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  495.163166][ T7715]  ___sys_sendmsg+0x135/0x1d0
[  495.168560][ T7715]  ? do_recvmmsg+0x740/0x740
[  495.173431][ T7715]  ? find_held_lock+0x2d/0x110
[  495.178220][ T7715]  ? preempt_count_sub+0x160/0x160
[  495.183523][ T7715]  ? __fget_light+0x1fc/0x260
[  495.188382][ T7715]  __sys_sendmsg+0x117/0x1e0
[  495.193158][ T7715]  ? __sys_sendmsg_sock+0x30/0x30
[  495.198214][ T7715]  ? syscall_enter_from_user_mode+0x7f/0x120
[  495.204211][ T7715]  do_syscall_64+0x40/0x110
[  495.208721][ T7715]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  495.214714][ T7715] RIP: 0033:0x7fb700fd30b9
[  495.219392][ T7715] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  495.240256][ T7715] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  495.248940][ T7715] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  495.257263][ T7715] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  495.265580][ T7715] RBP: 00000000000788c7 R08: 0000000000000000 R09: 0000000000000006
[  495.273898][ T7715] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  495.282091][ T7715] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  495.290169][ T7715]  </TASK>
[  495.294773][ T7715] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  495.346804][ T7715] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  495.356364][ T7715] CPU: 0 PID: 7715 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  495.366955][ T7715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  495.377381][ T7715] Call Trace:
[  495.380836][ T7715]  <TASK>
[  495.383967][ T7715]  dump_stack_lvl+0x125/0x1b0
[  495.388837][ T7715]  sysfs_warn_dup+0x7f/0xa0
[  495.393443][ T7715]  sysfs_create_dir_ns+0x249/0x2b0
[  495.398592][ T7715]  ? sysfs_create_mount_point+0xb0/0xb0
[  495.404237][ T7715]  ? spin_bug+0x1d0/0x1d0
[  495.408662][ T7715]  ? net_namespace+0x12/0x40
[  495.413351][ T7715]  ? device_namespace+0x8d/0xc0
[  495.418508][ T7715]  kobject_add_internal+0x2c8/0x970
[  495.423725][ T7715]  kobject_add+0x16f/0x240
[  495.428518][ T7715]  ? kset_create_and_add+0x190/0x190
[  495.435059][ T7715]  ? do_raw_spin_unlock+0x173/0x230
[  495.440316][ T7715]  ? kobject_put+0xbe/0x440
[  495.444844][ T7715]  ? device_add+0xc35/0x1aa0
[  495.449626][ T7715]  device_add+0x289/0x1aa0
[  495.454500][ T7715]  ? device_initialize+0x510/0x510
[  495.459605][ T7715]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  495.466730][ T7715]  ? __init_waitqueue_head+0xca/0x150
[  495.472208][ T7715]  netdev_register_kobject+0x183/0x3f0
[  495.478115][ T7715]  register_netdevice+0xbe6/0x14b0
[  495.483412][ T7715]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  495.489564][ T7715]  ? validate_linkmsg+0x6fc/0x9c0
[  495.494590][ T7715]  br_dev_newlink+0x27/0x110
[  495.499484][ T7715]  ? br_changelink+0x1760/0x1760
[  495.504699][ T7715]  __rtnl_newlink+0x1173/0x1930
[  495.510212][ T7715]  ? rtnl_link_unregister+0x260/0x260
[  495.515707][ T7715]  rtnl_newlink+0x67/0xa0
[  495.520402][ T7715]  ? __rtnl_newlink+0x1930/0x1930
[  495.526008][ T7715]  rtnetlink_rcv_msg+0x3c7/0xe00
[  495.531122][ T7715]  ? rtnl_fill_vf+0x4a0/0x4a0
[  495.535982][ T7715]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  495.542705][ T7715]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  495.548783][ T7715]  netlink_rcv_skb+0x16b/0x440
[  495.553662][ T7715]  ? rtnl_fill_vf+0x4a0/0x4a0
[  495.558808][ T7715]  ? netlink_ack+0x1380/0x1380
[  495.563609][ T7715]  ? lock_sync+0x190/0x190
[  495.568254][ T7715]  ? netlink_deliver_tap+0x1a0/0xd00
[  495.573719][ T7715]  ? _copy_from_iter+0x2c1/0x10f0
[  495.578834][ T7715]  netlink_unicast+0x53b/0x810
[  495.583604][ T7715]  ? netlink_attachskb+0x880/0x880
[  495.589069][ T7715]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  495.595151][ T7715]  ? __phys_addr_symbol+0x30/0x70
[  495.600348][ T7715]  ? __check_object_size+0x323/0x730
[  495.605717][ T7715]  netlink_sendmsg+0x93c/0xe40
[  495.610494][ T7715]  ? netlink_unicast+0x810/0x810
[  495.616308][ T7715]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  495.621611][ T7715]  ? netlink_unicast+0x810/0x810
[  495.626695][ T7715]  __sock_sendmsg+0xd5/0x180
[  495.631462][ T7715]  ____sys_sendmsg+0x6ac/0x940
[  495.636266][ T7715]  ? copy_msghdr_from_user+0x10b/0x160
[  495.641904][ T7715]  ? kernel_sendmsg+0x50/0x50
[  495.646751][ T7715]  ? hlock_class+0x4e/0x130
[  495.651613][ T7715]  ? __lock_acquire+0x14e0/0x3b10
[  495.656729][ T7715]  ___sys_sendmsg+0x135/0x1d0
[  495.661584][ T7715]  ? do_recvmmsg+0x740/0x740
[  495.666609][ T7715]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  495.672707][ T7715]  ? find_held_lock+0x2d/0x110
[  495.677764][ T7715]  ? __fget_light+0x1fc/0x260
[  495.682437][ T7715]  __sys_sendmsg+0x117/0x1e0
[  495.687089][ T7715]  ? __sys_sendmsg_sock+0x30/0x30
[  495.692207][ T7715]  ? xfd_validate_state+0x5d/0x180
[  495.697364][ T7715]  ? syscall_enter_from_user_mode+0x7f/0x120
[  495.703358][ T7715]  do_syscall_64+0x40/0x110
[  495.707881][ T7715]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  495.713875][ T7715] RIP: 0033:0x7fb700fd30b9
[  495.718562][ T7715] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  495.739478][ T7715] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  495.748272][ T7715] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  495.756879][ T7715] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  495.765066][ T7715] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  495.773136][ T7715] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  495.781286][ T7715] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  495.789456][ T7715]  </TASK>
[  495.794077][ T7715] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  495.870370][ T7718] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  495.881586][ T7718] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  495.891226][ T7718] CPU: 0 PID: 7718 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  495.901884][ T7718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  495.912318][ T7718] Call Trace:
[  495.916069][ T7718]  <TASK>
[  495.919131][ T7718]  dump_stack_lvl+0x125/0x1b0
[  495.923951][ T7718]  sysfs_warn_dup+0x7f/0xa0
[  495.928743][ T7718]  sysfs_create_dir_ns+0x249/0x2b0
[  495.934047][ T7718]  ? sysfs_create_mount_point+0xb0/0xb0
[  495.940261][ T7718]  ? spin_bug+0x1d0/0x1d0
[  495.944970][ T7718]  ? net_namespace+0x12/0x40
[  495.950807][ T7718]  ? device_namespace+0x8d/0xc0
[  495.956251][ T7718]  kobject_add_internal+0x2c8/0x970
[  495.962074][ T7718]  kobject_add+0x16f/0x240
[  495.967248][ T7718]  ? kset_create_and_add+0x190/0x190
[  495.973690][ T7718]  ? do_raw_spin_unlock+0x173/0x230
[  495.979760][ T7718]  ? kobject_put+0xbe/0x440
[  495.984602][ T7718]  ? device_add+0xc35/0x1aa0
[  495.989390][ T7718]  device_add+0x289/0x1aa0
[  495.993917][ T7718]  ? device_initialize+0x510/0x510
[  495.999032][ T7718]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  496.006134][ T7718]  ? __init_waitqueue_head+0xca/0x150
[  496.011643][ T7718]  netdev_register_kobject+0x183/0x3f0
[  496.017373][ T7718]  register_netdevice+0xbe6/0x14b0
[  496.022865][ T7718]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  496.028986][ T7718]  ? validate_linkmsg+0x6fc/0x9c0
[  496.034214][ T7718]  br_dev_newlink+0x27/0x110
[  496.038921][ T7718]  ? br_changelink+0x1760/0x1760
[  496.044051][ T7718]  __rtnl_newlink+0x1173/0x1930
[  496.049053][ T7718]  ? rtnl_link_unregister+0x260/0x260
[  496.054571][ T7718]  rtnl_newlink+0x67/0xa0
[  496.059550][ T7718]  ? __rtnl_newlink+0x1930/0x1930
[  496.064689][ T7718]  rtnetlink_rcv_msg+0x3c7/0xe00
[  496.069777][ T7718]  ? rtnl_fill_vf+0x4a0/0x4a0
[  496.074486][ T7718]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  496.080888][ T7718]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  496.087090][ T7718]  netlink_rcv_skb+0x16b/0x440
[  496.091881][ T7718]  ? rtnl_fill_vf+0x4a0/0x4a0
[  496.096755][ T7718]  ? netlink_ack+0x1380/0x1380
[  496.102224][ T7718]  ? lock_sync+0x190/0x190
[  496.106665][ T7718]  ? netlink_deliver_tap+0x1a0/0xd00
[  496.112654][ T7718]  ? _copy_from_iter+0x2c1/0x10f0
[  496.117807][ T7718]  netlink_unicast+0x53b/0x810
[  496.122711][ T7718]  ? netlink_attachskb+0x880/0x880
[  496.129870][ T7718]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  496.136309][ T7718]  ? __phys_addr_symbol+0x30/0x70
[  496.141700][ T7718]  ? __check_object_size+0x323/0x730
[  496.147084][ T7718]  netlink_sendmsg+0x93c/0xe40
[  496.151997][ T7718]  ? netlink_unicast+0x810/0x810
[  496.157072][ T7718]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  496.162551][ T7718]  ? netlink_unicast+0x810/0x810
[  496.167852][ T7718]  __sock_sendmsg+0xd5/0x180
[  496.172487][ T7718]  ____sys_sendmsg+0x6ac/0x940
[  496.177279][ T7718]  ? copy_msghdr_from_user+0x10b/0x160
[  496.183099][ T7718]  ? kernel_sendmsg+0x50/0x50
[  496.187883][ T7718]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  496.194319][ T7718]  ___sys_sendmsg+0x135/0x1d0
[  496.199122][ T7718]  ? do_recvmmsg+0x740/0x740
[  496.203741][ T7718]  ? find_held_lock+0x2d/0x110
[  496.208634][ T7718]  ? preempt_count_sub+0x160/0x160
[  496.213969][ T7718]  ? __fget_light+0x1fc/0x260
[  496.218831][ T7718]  __sys_sendmsg+0x117/0x1e0
[  496.223695][ T7718]  ? __sys_sendmsg_sock+0x30/0x30
[  496.228839][ T7718]  ? syscall_enter_from_user_mode+0x7f/0x120
[  496.235269][ T7718]  do_syscall_64+0x40/0x110
[  496.239880][ T7718]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  496.245887][ T7718] RIP: 0033:0x7fb700fd30b9
[  496.250615][ T7718] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  496.271709][ T7718] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  496.280652][ T7718] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  496.288635][ T7718] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  496.296876][ T7718] RBP: 0000000000078cca R08: 0000000000000000 R09: 0000000000000006
[  496.304934][ T7718] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  496.312992][ T7718] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  496.320997][ T7718]  </TASK>
[  496.325310][ T7718] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  496.369646][ T7718] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  496.379057][ T7718] CPU: 1 PID: 7718 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  496.389418][ T7718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  496.399514][ T7718] Call Trace:
[  496.402812][ T7718]  <TASK>
[  496.405848][ T7718]  dump_stack_lvl+0x125/0x1b0
[  496.410740][ T7718]  sysfs_warn_dup+0x7f/0xa0
[  496.415290][ T7718]  sysfs_create_dir_ns+0x249/0x2b0
[  496.420536][ T7718]  ? sysfs_create_mount_point+0xb0/0xb0
[  496.426485][ T7718]  ? spin_bug+0x1d0/0x1d0
[  496.431042][ T7718]  ? net_namespace+0x12/0x40
[  496.436111][ T7718]  ? device_namespace+0x8d/0xc0
[  496.441284][ T7718]  kobject_add_internal+0x2c8/0x970
[  496.446797][ T7718]  kobject_add+0x16f/0x240
[  496.451263][ T7718]  ? kset_create_and_add+0x190/0x190
[  496.456764][ T7718]  ? do_raw_spin_unlock+0x173/0x230
[  496.462813][ T7718]  ? kobject_put+0xbe/0x440
[  496.467450][ T7718]  ? device_add+0xc35/0x1aa0
[  496.472281][ T7718]  device_add+0x289/0x1aa0
[  496.476924][ T7718]  ? device_initialize+0x510/0x510
[  496.482245][ T7718]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  496.490035][ T7718]  ? __init_waitqueue_head+0xca/0x150
[  496.496510][ T7718]  netdev_register_kobject+0x183/0x3f0
[  496.502149][ T7718]  register_netdevice+0xbe6/0x14b0
[  496.507486][ T7718]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  496.513619][ T7718]  ? validate_linkmsg+0x6fc/0x9c0
[  496.518954][ T7718]  br_dev_newlink+0x27/0x110
[  496.523685][ T7718]  ? br_changelink+0x1760/0x1760
[  496.528739][ T7718]  __rtnl_newlink+0x1173/0x1930
[  496.533653][ T7718]  ? rtnl_link_unregister+0x260/0x260
[  496.539374][ T7718]  rtnl_newlink+0x67/0xa0
[  496.543872][ T7718]  ? __rtnl_newlink+0x1930/0x1930
[  496.550459][ T7718]  rtnetlink_rcv_msg+0x3c7/0xe00
[  496.555654][ T7718]  ? rtnl_fill_vf+0x4a0/0x4a0
[  496.560724][ T7718]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  496.567187][ T7718]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  496.573494][ T7718]  netlink_rcv_skb+0x16b/0x440
[  496.578475][ T7718]  ? rtnl_fill_vf+0x4a0/0x4a0
[  496.583200][ T7718]  ? netlink_ack+0x1380/0x1380
[  496.588003][ T7718]  ? lock_sync+0x190/0x190
[  496.592564][ T7718]  ? netlink_deliver_tap+0x1a0/0xd00
[  496.598329][ T7718]  ? _copy_from_iter+0x2c1/0x10f0
[  496.603495][ T7718]  netlink_unicast+0x53b/0x810
[  496.608315][ T7718]  ? netlink_attachskb+0x880/0x880
[  496.613640][ T7718]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  496.619753][ T7718]  ? __phys_addr_symbol+0x30/0x70
[  496.624994][ T7718]  ? __check_object_size+0x323/0x730
[  496.630337][ T7718]  netlink_sendmsg+0x93c/0xe40
[  496.635245][ T7718]  ? netlink_unicast+0x810/0x810
[  496.640709][ T7718]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  496.646038][ T7718]  ? netlink_unicast+0x810/0x810
[  496.651049][ T7718]  __sock_sendmsg+0xd5/0x180
[  496.655682][ T7718]  ____sys_sendmsg+0x6ac/0x940
[  496.660764][ T7718]  ? copy_msghdr_from_user+0x10b/0x160
[  496.666442][ T7718]  ? kernel_sendmsg+0x50/0x50
[  496.671351][ T7718]  ? hlock_class+0x4e/0x130
[  496.676162][ T7718]  ? __lock_acquire+0x14e0/0x3b10
[  496.681512][ T7718]  ___sys_sendmsg+0x135/0x1d0
[  496.686339][ T7718]  ? do_recvmmsg+0x740/0x740
[  496.691057][ T7718]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  496.697179][ T7718]  ? find_held_lock+0x2d/0x110
[  496.702115][ T7718]  ? __fget_light+0x1fc/0x260
[  496.707030][ T7718]  __sys_sendmsg+0x117/0x1e0
[  496.711755][ T7718]  ? __sys_sendmsg_sock+0x30/0x30
[  496.716817][ T7718]  ? xfd_validate_state+0x5d/0x180
[  496.721993][ T7718]  ? syscall_enter_from_user_mode+0x7f/0x120
[  496.728126][ T7718]  do_syscall_64+0x40/0x110
[  496.733111][ T7718]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  496.739141][ T7718] RIP: 0033:0x7fb700fd30b9
[  496.743599][ T7718] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  496.763690][ T7718] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  496.772586][ T7718] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  496.780594][ T7718] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  496.788597][ T7718] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  496.796775][ T7718] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  496.805002][ T7718] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  496.813093][ T7718]  </TASK>
[  496.817541][ T7718] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  496.851977][ T7734] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  496.864118][ T7734] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  496.873783][ T7734] CPU: 1 PID: 7734 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  496.884237][ T7734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  496.894973][ T7734] Call Trace:
[  496.898683][ T7734]  <TASK>
[  496.901998][ T7734]  dump_stack_lvl+0x125/0x1b0
[  496.907109][ T7734]  sysfs_warn_dup+0x7f/0xa0
[  496.911841][ T7734]  sysfs_create_dir_ns+0x249/0x2b0
[  496.917581][ T7734]  ? sysfs_create_mount_point+0xb0/0xb0
[  496.923176][ T7734]  ? spin_bug+0x1d0/0x1d0
[  496.927890][ T7734]  ? net_namespace+0x12/0x40
[  496.932753][ T7734]  ? device_namespace+0x8d/0xc0
[  496.937988][ T7734]  kobject_add_internal+0x2c8/0x970
[  496.943225][ T7734]  kobject_add+0x16f/0x240
[  496.947857][ T7734]  ? kset_create_and_add+0x190/0x190
[  496.953161][ T7734]  ? do_raw_spin_unlock+0x173/0x230
[  496.958452][ T7734]  ? kobject_put+0xbe/0x440
[  496.963052][ T7734]  ? device_add+0xc35/0x1aa0
[  496.967659][ T7734]  device_add+0x289/0x1aa0
[  496.972302][ T7734]  ? device_initialize+0x510/0x510
[  496.977506][ T7734]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  496.984594][ T7734]  ? __init_waitqueue_head+0xca/0x150
[  496.990075][ T7734]  netdev_register_kobject+0x183/0x3f0
[  496.995662][ T7734]  register_netdevice+0xbe6/0x14b0
[  497.000876][ T7734]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  497.006798][ T7734]  ? validate_linkmsg+0x6fc/0x9c0
[  497.011919][ T7734]  br_dev_newlink+0x27/0x110
[  497.016867][ T7734]  ? br_changelink+0x1760/0x1760
[  497.022328][ T7734]  __rtnl_newlink+0x1173/0x1930
[  497.027198][ T7734]  ? rtnl_link_unregister+0x260/0x260
[  497.032642][ T7734]  rtnl_newlink+0x67/0xa0
[  497.037195][ T7734]  ? __rtnl_newlink+0x1930/0x1930
[  497.042224][ T7734]  rtnetlink_rcv_msg+0x3c7/0xe00
[  497.047172][ T7734]  ? rtnl_fill_vf+0x4a0/0x4a0
[  497.051880][ T7734]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  497.058133][ T7734]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  497.064135][ T7734]  netlink_rcv_skb+0x16b/0x440
[  497.068935][ T7734]  ? rtnl_fill_vf+0x4a0/0x4a0
[  497.074100][ T7734]  ? netlink_ack+0x1380/0x1380
[  497.079099][ T7734]  ? lock_sync+0x190/0x190
[  497.084240][ T7734]  ? netlink_deliver_tap+0x1a0/0xd00
[  497.089625][ T7734]  ? _copy_from_iter+0x2c1/0x10f0
[  497.094681][ T7734]  netlink_unicast+0x53b/0x810
[  497.099545][ T7734]  ? netlink_attachskb+0x880/0x880
[  497.104864][ T7734]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  497.111057][ T7734]  ? __phys_addr_symbol+0x30/0x70
[  497.116719][ T7734]  ? __check_object_size+0x323/0x730
[  497.122042][ T7734]  netlink_sendmsg+0x93c/0xe40
[  497.126829][ T7734]  ? netlink_unicast+0x810/0x810
[  497.131904][ T7734]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  497.137218][ T7734]  ? netlink_unicast+0x810/0x810
[  497.142207][ T7734]  __sock_sendmsg+0xd5/0x180
[  497.147694][ T7734]  ____sys_sendmsg+0x6ac/0x940
[  497.152737][ T7734]  ? copy_msghdr_from_user+0x10b/0x160
[  497.158435][ T7734]  ? kernel_sendmsg+0x50/0x50
[  497.163137][ T7734]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  497.169311][ T7734]  ___sys_sendmsg+0x135/0x1d0
[  497.174102][ T7734]  ? do_recvmmsg+0x740/0x740
[  497.178728][ T7734]  ? find_held_lock+0x2d/0x110
[  497.183882][ T7734]  ? preempt_count_sub+0x160/0x160
[  497.189096][ T7734]  ? __fget_light+0x1fc/0x260
[  497.193782][ T7734]  __sys_sendmsg+0x117/0x1e0
[  497.198383][ T7734]  ? __sys_sendmsg_sock+0x30/0x30
[  497.203448][ T7734]  ? xfd_validate_state+0x5d/0x180
[  497.208674][ T7734]  ? syscall_enter_from_user_mode+0x7f/0x120
[  497.214932][ T7734]  do_syscall_64+0x40/0x110
[  497.220326][ T7734]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  497.226782][ T7734] RIP: 0033:0x7fb700fd30b9
[  497.231210][ T7734] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  497.251285][ T7734] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  497.259981][ T7734] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  497.268331][ T7734] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  497.276409][ T7734] RBP: 00000000000790d1 R08: 0000000000000000 R09: 0000000000000006
[  497.284500][ T7734] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  497.292830][ T7734] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  497.300907][ T7734]  </TASK>
[  497.308246][ T7734] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  497.356134][ T7734] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  497.365487][ T7734] CPU: 0 PID: 7734 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  497.375590][ T7734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  497.385676][ T7734] Call Trace:
[  497.388985][ T7734]  <TASK>
[  497.391946][ T7734]  dump_stack_lvl+0x125/0x1b0
[  497.396668][ T7734]  sysfs_warn_dup+0x7f/0xa0
[  497.401210][ T7734]  sysfs_create_dir_ns+0x249/0x2b0
[  497.406401][ T7734]  ? sysfs_create_mount_point+0xb0/0xb0
[  497.411989][ T7734]  ? spin_bug+0x1d0/0x1d0
[  497.416370][ T7734]  ? net_namespace+0x12/0x40
[  497.421009][ T7734]  ? device_namespace+0x8d/0xc0
[  497.425919][ T7734]  kobject_add_internal+0x2c8/0x970
[  497.431182][ T7734]  kobject_add+0x16f/0x240
[  497.436695][ T7734]  ? kset_create_and_add+0x190/0x190
[  497.442208][ T7734]  ? do_raw_spin_unlock+0x173/0x230
[  497.447798][ T7734]  ? kobject_put+0xbe/0x440
[  497.452560][ T7734]  ? device_add+0xc35/0x1aa0
[  497.457209][ T7734]  device_add+0x289/0x1aa0
[  497.461678][ T7734]  ? device_initialize+0x510/0x510
[  497.466915][ T7734]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  497.473816][ T7734]  ? __init_waitqueue_head+0xca/0x150
[  497.479430][ T7734]  netdev_register_kobject+0x183/0x3f0
[  497.484934][ T7734]  register_netdevice+0xbe6/0x14b0
[  497.490331][ T7734]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  497.496415][ T7734]  ? validate_linkmsg+0x6fc/0x9c0
[  497.501536][ T7734]  br_dev_newlink+0x27/0x110
[  497.506406][ T7734]  ? br_changelink+0x1760/0x1760
[  497.511436][ T7734]  __rtnl_newlink+0x1173/0x1930
[  497.516395][ T7734]  ? rtnl_link_unregister+0x260/0x260
[  497.522237][ T7734]  rtnl_newlink+0x67/0xa0
[  497.526757][ T7734]  ? __rtnl_newlink+0x1930/0x1930
[  497.532234][ T7734]  rtnetlink_rcv_msg+0x3c7/0xe00
[  497.537192][ T7734]  ? rtnl_fill_vf+0x4a0/0x4a0
[  497.541965][ T7734]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  497.548051][ T7734]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  497.554151][ T7734]  netlink_rcv_skb+0x16b/0x440
[  497.559047][ T7734]  ? rtnl_fill_vf+0x4a0/0x4a0
[  497.563850][ T7734]  ? netlink_ack+0x1380/0x1380
[  497.568914][ T7734]  ? lock_sync+0x190/0x190
[  497.573362][ T7734]  ? netlink_deliver_tap+0x1a0/0xd00
[  497.578789][ T7734]  ? _copy_from_iter+0x2c1/0x10f0
[  497.584208][ T7734]  netlink_unicast+0x53b/0x810
[  497.589287][ T7734]  ? netlink_attachskb+0x880/0x880
[  497.594594][ T7734]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  497.601108][ T7734]  ? __phys_addr_symbol+0x30/0x70
[  497.606344][ T7734]  ? __check_object_size+0x323/0x730
[  497.611659][ T7734]  netlink_sendmsg+0x93c/0xe40
[  497.616538][ T7734]  ? netlink_unicast+0x810/0x810
[  497.621626][ T7734]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  497.627013][ T7734]  ? netlink_unicast+0x810/0x810
[  497.631963][ T7734]  __sock_sendmsg+0xd5/0x180
[  497.636675][ T7734]  ____sys_sendmsg+0x6ac/0x940
[  497.641555][ T7734]  ? copy_msghdr_from_user+0x10b/0x160
[  497.647125][ T7734]  ? kernel_sendmsg+0x50/0x50
[  497.651816][ T7734]  ? hlock_class+0x4e/0x130
[  497.656337][ T7734]  ? __lock_acquire+0x14e0/0x3b10
[  497.661381][ T7734]  ___sys_sendmsg+0x135/0x1d0
[  497.666081][ T7734]  ? do_recvmmsg+0x740/0x740
[  497.670787][ T7734]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  497.676893][ T7734]  ? find_held_lock+0x2d/0x110
[  497.681781][ T7734]  ? __fget_light+0x1fc/0x260
[  497.686476][ T7734]  __sys_sendmsg+0x117/0x1e0
[  497.691082][ T7734]  ? __sys_sendmsg_sock+0x30/0x30
[  497.696397][ T7734]  ? xfd_validate_state+0x5d/0x180
[  497.701547][ T7734]  ? syscall_enter_from_user_mode+0x7f/0x120
[  497.707551][ T7734]  do_syscall_64+0x40/0x110
[  497.712064][ T7734]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  497.717983][ T7734] RIP: 0033:0x7fb700fd30b9
[  497.722400][ T7734] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  497.742466][ T7734] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  497.750981][ T7734] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  497.758955][ T7734] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  497.767192][ T7734] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  497.775432][ T7734] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  497.783582][ T7734] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  497.792034][ T7734]  </TASK>
[  497.807679][ T7734] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  497.872340][ T7746] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  497.884419][ T7746] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  497.894620][ T7746] CPU: 1 PID: 7746 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  497.904804][ T7746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  497.915509][ T7746] Call Trace:
[  497.919075][ T7746]  <TASK>
[  497.922311][ T7746]  dump_stack_lvl+0x125/0x1b0
[  497.927292][ T7746]  sysfs_warn_dup+0x7f/0xa0
[  497.932038][ T7746]  sysfs_create_dir_ns+0x249/0x2b0
[  497.937917][ T7746]  ? sysfs_create_mount_point+0xb0/0xb0
[  497.943657][ T7746]  ? spin_bug+0x1d0/0x1d0
[  497.948086][ T7746]  ? net_namespace+0x12/0x40
[  497.952698][ T7746]  ? device_namespace+0x8d/0xc0
[  497.957914][ T7746]  kobject_add_internal+0x2c8/0x970
[  497.963474][ T7746]  kobject_add+0x16f/0x240
[  497.968070][ T7746]  ? kset_create_and_add+0x190/0x190
[  497.973367][ T7746]  ? do_raw_spin_unlock+0x173/0x230
[  497.979012][ T7746]  ? kobject_put+0xbe/0x440
[  497.984247][ T7746]  ? device_add+0xc35/0x1aa0
[  497.988988][ T7746]  device_add+0x289/0x1aa0
[  497.993605][ T7746]  ? device_initialize+0x510/0x510
[  497.998739][ T7746]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  498.005952][ T7746]  ? __init_waitqueue_head+0xca/0x150
[  498.011601][ T7746]  netdev_register_kobject+0x183/0x3f0
[  498.017114][ T7746]  register_netdevice+0xbe6/0x14b0
[  498.022521][ T7746]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  498.028702][ T7746]  ? validate_linkmsg+0x6fc/0x9c0
[  498.034012][ T7746]  br_dev_newlink+0x27/0x110
[  498.038697][ T7746]  ? br_changelink+0x1760/0x1760
[  498.043654][ T7746]  __rtnl_newlink+0x1173/0x1930
[  498.048526][ T7746]  ? rtnl_link_unregister+0x260/0x260
[  498.054051][ T7746]  rtnl_newlink+0x67/0xa0
[  498.058403][ T7746]  ? __rtnl_newlink+0x1930/0x1930
[  498.063869][ T7746]  rtnetlink_rcv_msg+0x3c7/0xe00
[  498.068817][ T7746]  ? rtnl_fill_vf+0x4a0/0x4a0
[  498.073679][ T7746]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  498.079781][ T7746]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  498.085868][ T7746]  netlink_rcv_skb+0x16b/0x440
[  498.090818][ T7746]  ? rtnl_fill_vf+0x4a0/0x4a0
[  498.095692][ T7746]  ? netlink_ack+0x1380/0x1380
[  498.100465][ T7746]  ? lock_sync+0x190/0x190
[  498.105036][ T7746]  ? netlink_deliver_tap+0x1a0/0xd00
[  498.110512][ T7746]  ? _copy_from_iter+0x2c1/0x10f0
[  498.115946][ T7746]  netlink_unicast+0x53b/0x810
[  498.121174][ T7746]  ? netlink_attachskb+0x880/0x880
[  498.127001][ T7746]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  498.133362][ T7746]  ? __phys_addr_symbol+0x30/0x70
[  498.139186][ T7746]  ? __check_object_size+0x323/0x730
[  498.144569][ T7746]  netlink_sendmsg+0x93c/0xe40
[  498.149455][ T7746]  ? netlink_unicast+0x810/0x810
[  498.154849][ T7746]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  498.160233][ T7746]  ? netlink_unicast+0x810/0x810
[  498.165309][ T7746]  __sock_sendmsg+0xd5/0x180
[  498.170090][ T7746]  ____sys_sendmsg+0x6ac/0x940
[  498.175208][ T7746]  ? copy_msghdr_from_user+0x10b/0x160
[  498.180803][ T7746]  ? kernel_sendmsg+0x50/0x50
[  498.185496][ T7746]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  498.191664][ T7746]  ___sys_sendmsg+0x135/0x1d0
[  498.196441][ T7746]  ? do_recvmmsg+0x740/0x740
[  498.201043][ T7746]  ? find_held_lock+0x2d/0x110
[  498.205859][ T7746]  ? preempt_count_sub+0x160/0x160
[  498.211273][ T7746]  ? __fget_light+0x1fc/0x260
[  498.216405][ T7746]  __sys_sendmsg+0x117/0x1e0
[  498.221293][ T7746]  ? __sys_sendmsg_sock+0x30/0x30
[  498.226519][ T7746]  ? xfd_validate_state+0x5d/0x180
[  498.231693][ T7746]  ? syscall_enter_from_user_mode+0x7f/0x120
[  498.237787][ T7746]  do_syscall_64+0x40/0x110
[  498.242475][ T7746]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  498.249517][ T7746] RIP: 0033:0x7fb700fd30b9
[  498.253959][ T7746] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  498.274453][ T7746] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  498.283147][ T7746] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  498.291290][ T7746] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  498.299565][ T7746] RBP: 00000000000794a7 R08: 0000000000000000 R09: 0000000000000006
[  498.307812][ T7746] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  498.316147][ T7746] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  498.324140][ T7746]  </TASK>
[  498.341224][ T7746] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  498.396256][ T7746] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  498.405739][ T7746] CPU: 1 PID: 7746 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  498.416200][ T7746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  498.426643][ T7746] Call Trace:
[  498.430123][ T7746]  <TASK>
[  498.433076][ T7746]  dump_stack_lvl+0x125/0x1b0
[  498.437887][ T7746]  sysfs_warn_dup+0x7f/0xa0
[  498.442786][ T7746]  sysfs_create_dir_ns+0x249/0x2b0
[  498.448219][ T7746]  ? sysfs_create_mount_point+0xb0/0xb0
[  498.454079][ T7746]  ? spin_bug+0x1d0/0x1d0
[  498.458635][ T7746]  ? net_namespace+0x12/0x40
[  498.463602][ T7746]  ? device_namespace+0x8d/0xc0
[  498.468529][ T7746]  kobject_add_internal+0x2c8/0x970
[  498.473883][ T7746]  kobject_add+0x16f/0x240
[  498.478363][ T7746]  ? kset_create_and_add+0x190/0x190
[  498.483893][ T7746]  ? do_raw_spin_unlock+0x173/0x230
[  498.489239][ T7746]  ? kobject_put+0xbe/0x440
[  498.494145][ T7746]  ? device_add+0xc35/0x1aa0
[  498.499007][ T7746]  device_add+0x289/0x1aa0
[  498.504214][ T7746]  ? device_initialize+0x510/0x510
[  498.510422][ T7746]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  498.517941][ T7746]  ? __init_waitqueue_head+0xca/0x150
[  498.523633][ T7746]  netdev_register_kobject+0x183/0x3f0
[  498.529416][ T7746]  register_netdevice+0xbe6/0x14b0
[  498.534952][ T7746]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  498.541154][ T7746]  ? validate_linkmsg+0x6fc/0x9c0
[  498.546319][ T7746]  br_dev_newlink+0x27/0x110
[  498.551213][ T7746]  ? br_changelink+0x1760/0x1760
[  498.556368][ T7746]  __rtnl_newlink+0x1173/0x1930
[  498.561363][ T7746]  ? rtnl_link_unregister+0x260/0x260
[  498.566919][ T7746]  rtnl_newlink+0x67/0xa0
[  498.571493][ T7746]  ? __rtnl_newlink+0x1930/0x1930
[  498.577087][ T7746]  rtnetlink_rcv_msg+0x3c7/0xe00
[  498.582259][ T7746]  ? rtnl_fill_vf+0x4a0/0x4a0
[  498.587088][ T7746]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  498.593385][ T7746]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  498.599605][ T7746]  netlink_rcv_skb+0x16b/0x440
[  498.604621][ T7746]  ? rtnl_fill_vf+0x4a0/0x4a0
[  498.609383][ T7746]  ? netlink_ack+0x1380/0x1380
[  498.614196][ T7746]  ? lock_sync+0x190/0x190
[  498.618677][ T7746]  ? netlink_deliver_tap+0x1a0/0xd00
[  498.624108][ T7746]  ? _copy_from_iter+0x2c1/0x10f0
[  498.629186][ T7746]  netlink_unicast+0x53b/0x810
[  498.634110][ T7746]  ? netlink_attachskb+0x880/0x880
[  498.639441][ T7746]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  498.645393][ T7746]  ? __phys_addr_symbol+0x30/0x70
[  498.650691][ T7746]  ? __check_object_size+0x323/0x730
[  498.656203][ T7746]  netlink_sendmsg+0x93c/0xe40
[  498.661417][ T7746]  ? netlink_unicast+0x810/0x810
[  498.666497][ T7746]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  498.672095][ T7746]  ? netlink_unicast+0x810/0x810
[  498.677356][ T7746]  __sock_sendmsg+0xd5/0x180
[  498.682372][ T7746]  ____sys_sendmsg+0x6ac/0x940
[  498.687804][ T7746]  ? copy_msghdr_from_user+0x10b/0x160
[  498.693308][ T7746]  ? kernel_sendmsg+0x50/0x50
[  498.698224][ T7746]  ? hlock_class+0x4e/0x130
[  498.702779][ T7746]  ? __lock_acquire+0x14e0/0x3b10
[  498.707869][ T7746]  ___sys_sendmsg+0x135/0x1d0
[  498.712872][ T7746]  ? do_recvmmsg+0x740/0x740
[  498.717781][ T7746]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  498.723991][ T7746]  ? find_held_lock+0x2d/0x110
[  498.729269][ T7746]  ? __fget_light+0x1fc/0x260
[  498.734630][ T7746]  __sys_sendmsg+0x117/0x1e0
[  498.739447][ T7746]  ? __sys_sendmsg_sock+0x30/0x30
[  498.744604][ T7746]  ? xfd_validate_state+0x5d/0x180
[  498.749872][ T7746]  ? syscall_enter_from_user_mode+0x7f/0x120
[  498.756192][ T7746]  do_syscall_64+0x40/0x110
[  498.760921][ T7746]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  498.767072][ T7746] RIP: 0033:0x7fb700fd30b9
[  498.771840][ T7746] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  498.791919][ T7746] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  498.801496][ T7746] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  498.809675][ T7746] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  498.818286][ T7746] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  498.826915][ T7746] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  498.835144][ T7746] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  498.843567][ T7746]  </TASK>
[  498.846944][ T7746] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  498.895663][ T7764] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  498.907079][ T7764] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  498.916579][ T7764] CPU: 1 PID: 7764 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  498.927037][ T7764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  498.937730][ T7764] Call Trace:
[  498.941044][ T7764]  <TASK>
[  498.944273][ T7764]  dump_stack_lvl+0x125/0x1b0
[  498.949267][ T7764]  sysfs_warn_dup+0x7f/0xa0
[  498.953929][ T7764]  sysfs_create_dir_ns+0x249/0x2b0
[  498.959183][ T7764]  ? sysfs_create_mount_point+0xb0/0xb0
[  498.965506][ T7764]  ? spin_bug+0x1d0/0x1d0
[  498.970051][ T7764]  ? net_namespace+0x12/0x40
[  498.974889][ T7764]  ? device_namespace+0x8d/0xc0
[  498.980220][ T7764]  kobject_add_internal+0x2c8/0x970
[  498.985908][ T7764]  kobject_add+0x16f/0x240
[  498.990360][ T7764]  ? kset_create_and_add+0x190/0x190
[  498.995669][ T7764]  ? do_raw_spin_unlock+0x173/0x230
[  499.000994][ T7764]  ? kobject_put+0xbe/0x440
[  499.005555][ T7764]  ? device_add+0xc35/0x1aa0
[  499.010283][ T7764]  device_add+0x289/0x1aa0
[  499.014747][ T7764]  ? device_initialize+0x510/0x510
[  499.020742][ T7764]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  499.027617][ T7764]  ? __init_waitqueue_head+0xca/0x150
[  499.033179][ T7764]  netdev_register_kobject+0x183/0x3f0
[  499.038749][ T7764]  register_netdevice+0xbe6/0x14b0
[  499.044048][ T7764]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  499.050124][ T7764]  ? validate_linkmsg+0x6fc/0x9c0
[  499.055254][ T7764]  br_dev_newlink+0x27/0x110
[  499.059855][ T7764]  ? br_changelink+0x1760/0x1760
[  499.065066][ T7764]  __rtnl_newlink+0x1173/0x1930
[  499.070218][ T7764]  ? rtnl_link_unregister+0x260/0x260
[  499.075659][ T7764]  rtnl_newlink+0x67/0xa0
[  499.080008][ T7764]  ? __rtnl_newlink+0x1930/0x1930
[  499.085351][ T7764]  rtnetlink_rcv_msg+0x3c7/0xe00
[  499.090304][ T7764]  ? rtnl_fill_vf+0x4a0/0x4a0
[  499.094987][ T7764]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  499.101329][ T7764]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  499.107594][ T7764]  netlink_rcv_skb+0x16b/0x440
[  499.112863][ T7764]  ? rtnl_fill_vf+0x4a0/0x4a0
[  499.118493][ T7764]  ? netlink_ack+0x1380/0x1380
[  499.123622][ T7764]  ? lock_sync+0x190/0x190
[  499.128621][ T7764]  ? netlink_deliver_tap+0x1a0/0xd00
[  499.134423][ T7764]  ? _copy_from_iter+0x2c1/0x10f0
[  499.140722][ T7764]  netlink_unicast+0x53b/0x810
[  499.145779][ T7764]  ? netlink_attachskb+0x880/0x880
[  499.151022][ T7764]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  499.157913][ T7764]  ? __phys_addr_symbol+0x30/0x70
[  499.162960][ T7764]  ? __check_object_size+0x323/0x730
[  499.168620][ T7764]  netlink_sendmsg+0x93c/0xe40
[  499.174819][ T7764]  ? netlink_unicast+0x810/0x810
[  499.179869][ T7764]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  499.185339][ T7764]  ? netlink_unicast+0x810/0x810
[  499.190709][ T7764]  __sock_sendmsg+0xd5/0x180
[  499.195395][ T7764]  ____sys_sendmsg+0x6ac/0x940
[  499.200948][ T7764]  ? copy_msghdr_from_user+0x10b/0x160
[  499.206513][ T7764]  ? kernel_sendmsg+0x50/0x50
[  499.211294][ T7764]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  499.217291][ T7764]  ___sys_sendmsg+0x135/0x1d0
[  499.222001][ T7764]  ? do_recvmmsg+0x740/0x740
[  499.226863][ T7764]  ? find_held_lock+0x2d/0x110
[  499.231785][ T7764]  ? preempt_count_sub+0x160/0x160
[  499.237204][ T7764]  ? __fget_light+0x1fc/0x260
[  499.242075][ T7764]  __sys_sendmsg+0x117/0x1e0
[  499.246948][ T7764]  ? __sys_sendmsg_sock+0x30/0x30
[  499.252346][ T7764]  ? xfd_validate_state+0x5d/0x180
[  499.258054][ T7764]  ? syscall_enter_from_user_mode+0x7f/0x120
[  499.265020][ T7764]  do_syscall_64+0x40/0x110
[  499.270472][ T7764]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  499.276384][ T7764] RIP: 0033:0x7fb700fd30b9
[  499.280886][ T7764] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  499.302586][ T7764] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  499.311547][ T7764] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  499.319960][ T7764] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  499.328395][ T7764] RBP: 00000000000798a3 R08: 0000000000000000 R09: 0000000000000006
[  499.336438][ T7764] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  499.344692][ T7764] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  499.352695][ T7764]  </TASK>
[  499.357488][ T7764] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  499.416169][ T7764] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  499.425709][ T7764] CPU: 1 PID: 7764 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  499.437291][ T7764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  499.448683][ T7764] Call Trace:
[  499.452244][ T7764]  <TASK>
[  499.455579][ T7764]  dump_stack_lvl+0x125/0x1b0
[  499.460517][ T7764]  sysfs_warn_dup+0x7f/0xa0
[  499.465691][ T7764]  sysfs_create_dir_ns+0x249/0x2b0
[  499.471036][ T7764]  ? sysfs_create_mount_point+0xb0/0xb0
[  499.476985][ T7764]  ? spin_bug+0x1d0/0x1d0
[  499.482803][ T7764]  ? net_namespace+0x12/0x40
[  499.490071][ T7764]  ? device_namespace+0x8d/0xc0
[  499.495727][ T7764]  kobject_add_internal+0x2c8/0x970
[  499.501253][ T7764]  kobject_add+0x16f/0x240
[  499.505815][ T7764]  ? kset_create_and_add+0x190/0x190
[  499.511512][ T7764]  ? do_raw_spin_unlock+0x173/0x230
[  499.517929][ T7764]  ? kobject_put+0xbe/0x440
[  499.523048][ T7764]  ? device_add+0xc35/0x1aa0
[  499.529338][ T7764]  device_add+0x289/0x1aa0
[  499.535832][ T7764]  ? device_initialize+0x510/0x510
[  499.542224][ T7764]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  499.551843][ T7764]  ? __init_waitqueue_head+0xca/0x150
[  499.558906][ T7764]  netdev_register_kobject+0x183/0x3f0
[  499.564699][ T7764]  register_netdevice+0xbe6/0x14b0
[  499.570577][ T7764]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  499.576806][ T7764]  ? validate_linkmsg+0x6fc/0x9c0
[  499.582329][ T7764]  br_dev_newlink+0x27/0x110
[  499.587059][ T7764]  ? br_changelink+0x1760/0x1760
[  499.592136][ T7764]  __rtnl_newlink+0x1173/0x1930
[  499.597389][ T7764]  ? rtnl_link_unregister+0x260/0x260
[  499.603021][ T7764]  rtnl_newlink+0x67/0xa0
[  499.607583][ T7764]  ? __rtnl_newlink+0x1930/0x1930
[  499.612903][ T7764]  rtnetlink_rcv_msg+0x3c7/0xe00
[  499.617907][ T7764]  ? rtnl_fill_vf+0x4a0/0x4a0
[  499.623086][ T7764]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  499.629696][ T7764]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  499.636443][ T7764]  netlink_rcv_skb+0x16b/0x440
[  499.641533][ T7764]  ? rtnl_fill_vf+0x4a0/0x4a0
[  499.646883][ T7764]  ? netlink_ack+0x1380/0x1380
[  499.652263][ T7764]  ? lock_sync+0x190/0x190
[  499.657364][ T7764]  ? netlink_deliver_tap+0x1a0/0xd00
[  499.662855][ T7764]  ? _copy_from_iter+0x2c1/0x10f0
[  499.667938][ T7764]  netlink_unicast+0x53b/0x810
[  499.672961][ T7764]  ? netlink_attachskb+0x880/0x880
[  499.678214][ T7764]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  499.684336][ T7764]  ? __phys_addr_symbol+0x30/0x70
[  499.689712][ T7764]  ? __check_object_size+0x323/0x730
[  499.695053][ T7764]  netlink_sendmsg+0x93c/0xe40
[  499.699874][ T7764]  ? netlink_unicast+0x810/0x810
[  499.704898][ T7764]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  499.710416][ T7764]  ? netlink_unicast+0x810/0x810
[  499.715585][ T7764]  __sock_sendmsg+0xd5/0x180
[  499.720558][ T7764]  ____sys_sendmsg+0x6ac/0x940
[  499.725457][ T7764]  ? copy_msghdr_from_user+0x10b/0x160
[  499.731403][ T7764]  ? kernel_sendmsg+0x50/0x50
[  499.736742][ T7764]  ___sys_sendmsg+0x135/0x1d0
[  499.742476][ T7764]  ? do_recvmmsg+0x740/0x740
[  499.747283][ T7764]  ? find_held_lock+0x2d/0x110
[  499.752396][ T7764]  ? preempt_count_sub+0x160/0x160
[  499.758321][ T7764]  ? __fget_light+0x1fc/0x260
[  499.763365][ T7764]  __sys_sendmsg+0x117/0x1e0
[  499.769111][ T7764]  ? __sys_sendmsg_sock+0x30/0x30
[  499.775326][ T7764]  ? syscall_enter_from_user_mode+0x7f/0x120
[  499.781607][ T7764]  do_syscall_64+0x40/0x110
[  499.786313][ T7764]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  499.792846][ T7764] RIP: 0033:0x7fb700fd30b9
[  499.797541][ T7764] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  499.818913][ T7764] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  499.828911][ T7764] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  499.837414][ T7764] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  499.846289][ T7764] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  499.854439][ T7764] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  499.864518][ T7764] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  499.873994][ T7764]  </TASK>
[  499.882450][ T7764] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  499.951927][ T7779] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  499.966732][ T7779] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  499.977234][ T7779] CPU: 1 PID: 7779 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  499.988924][ T7779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  500.000240][ T7779] Call Trace:
[  500.003806][ T7779]  <TASK>
[  500.007149][ T7779]  dump_stack_lvl+0x125/0x1b0
[  500.012523][ T7779]  sysfs_warn_dup+0x7f/0xa0
[  500.017781][ T7779]  sysfs_create_dir_ns+0x249/0x2b0
[  500.024014][ T7779]  ? sysfs_create_mount_point+0xb0/0xb0
[  500.029888][ T7779]  ? spin_bug+0x1d0/0x1d0
[  500.034613][ T7779]  ? net_namespace+0x12/0x40
[  500.039592][ T7779]  ? device_namespace+0x8d/0xc0
[  500.044586][ T7779]  kobject_add_internal+0x2c8/0x970
[  500.050192][ T7779]  kobject_add+0x16f/0x240
[  500.054836][ T7779]  ? kset_create_and_add+0x190/0x190
[  500.060610][ T7779]  ? do_raw_spin_unlock+0x173/0x230
[  500.065864][ T7779]  ? kobject_put+0xbe/0x440
[  500.070868][ T7779]  ? device_add+0xc35/0x1aa0
[  500.075818][ T7779]  device_add+0x289/0x1aa0
[  500.080375][ T7779]  ? device_initialize+0x510/0x510
[  500.085877][ T7779]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  500.093723][ T7779]  ? __init_waitqueue_head+0xca/0x150
[  500.099443][ T7779]  netdev_register_kobject+0x183/0x3f0
[  500.105052][ T7779]  register_netdevice+0xbe6/0x14b0
[  500.110298][ T7779]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  500.116250][ T7779]  ? validate_linkmsg+0x6fc/0x9c0
[  500.121394][ T7779]  br_dev_newlink+0x27/0x110
[  500.126393][ T7779]  ? br_changelink+0x1760/0x1760
[  500.132053][ T7779]  __rtnl_newlink+0x1173/0x1930
[  500.137303][ T7779]  ? rtnl_link_unregister+0x260/0x260
[  500.143200][ T7779]  rtnl_newlink+0x67/0xa0
[  500.147857][ T7779]  ? __rtnl_newlink+0x1930/0x1930
[  500.153206][ T7779]  rtnetlink_rcv_msg+0x3c7/0xe00
[  500.158373][ T7779]  ? rtnl_fill_vf+0x4a0/0x4a0
[  500.163502][ T7779]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  500.169992][ T7779]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  500.178947][ T7779]  netlink_rcv_skb+0x16b/0x440
[  500.183944][ T7779]  ? rtnl_fill_vf+0x4a0/0x4a0
[  500.188936][ T7779]  ? netlink_ack+0x1380/0x1380
[  500.193762][ T7779]  ? lock_sync+0x190/0x190
[  500.198536][ T7779]  ? netlink_deliver_tap+0x1a0/0xd00
[  500.204135][ T7779]  ? _copy_from_iter+0x2c1/0x10f0
[  500.209743][ T7779]  netlink_unicast+0x53b/0x810
[  500.215005][ T7779]  ? netlink_attachskb+0x880/0x880
[  500.220505][ T7779]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  500.226620][ T7779]  ? __phys_addr_symbol+0x30/0x70
[  500.231692][ T7779]  ? __check_object_size+0x323/0x730
[  500.237120][ T7779]  netlink_sendmsg+0x93c/0xe40
[  500.241974][ T7779]  ? netlink_unicast+0x810/0x810
[  500.247053][ T7779]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  500.252562][ T7779]  ? netlink_unicast+0x810/0x810
[  500.257551][ T7779]  __sock_sendmsg+0xd5/0x180
[  500.262281][ T7779]  ____sys_sendmsg+0x6ac/0x940
[  500.267091][ T7779]  ? copy_msghdr_from_user+0x10b/0x160
[  500.272603][ T7779]  ? kernel_sendmsg+0x50/0x50
[  500.277420][ T7779]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  500.283558][ T7779]  ___sys_sendmsg+0x135/0x1d0
[  500.288313][ T7779]  ? do_recvmmsg+0x740/0x740
[  500.293211][ T7779]  ? find_held_lock+0x2d/0x110
[  500.298047][ T7779]  ? preempt_count_sub+0x160/0x160
[  500.303399][ T7779]  ? __fget_light+0x1fc/0x260
[  500.308127][ T7779]  __sys_sendmsg+0x117/0x1e0
[  500.312949][ T7779]  ? __sys_sendmsg_sock+0x30/0x30
[  500.318110][ T7779]  ? xfd_validate_state+0x5d/0x180
[  500.323551][ T7779]  ? syscall_enter_from_user_mode+0x7f/0x120
[  500.329761][ T7779]  do_syscall_64+0x40/0x110
[  500.334381][ T7779]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  500.340591][ T7779] RIP: 0033:0x7fb700fd30b9
[  500.345821][ T7779] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  500.365762][ T7779] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  500.374307][ T7779] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  500.382328][ T7779] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  500.390432][ T7779] RBP: 0000000000079ca2 R08: 0000000000000000 R09: 0000000000000006
[  500.398857][ T7779] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  500.407100][ T7779] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  500.415101][ T7779]  </TASK>
[  500.419404][ T7779] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  500.487930][ T7779] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  500.497257][ T7779] CPU: 1 PID: 7779 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  500.508936][ T7779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  500.519352][ T7779] Call Trace:
[  500.522664][ T7779]  <TASK>
[  500.525796][ T7779]  dump_stack_lvl+0x125/0x1b0
[  500.530610][ T7779]  sysfs_warn_dup+0x7f/0xa0
[  500.535330][ T7779]  sysfs_create_dir_ns+0x249/0x2b0
[  500.540509][ T7779]  ? sysfs_create_mount_point+0xb0/0xb0
[  500.546279][ T7779]  ? spin_bug+0x1d0/0x1d0
[  500.550650][ T7779]  ? net_namespace+0x12/0x40
[  500.555596][ T7779]  ? device_namespace+0x8d/0xc0
[  500.560672][ T7779]  kobject_add_internal+0x2c8/0x970
[  500.566643][ T7779]  kobject_add+0x16f/0x240
[  500.571230][ T7779]  ? kset_create_and_add+0x190/0x190
[  500.576741][ T7779]  ? do_raw_spin_unlock+0x173/0x230
[  500.582169][ T7779]  ? kobject_put+0xbe/0x440
[  500.586813][ T7779]  ? device_add+0xc35/0x1aa0
[  500.591573][ T7779]  device_add+0x289/0x1aa0
[  500.596127][ T7779]  ? device_initialize+0x510/0x510
[  500.601369][ T7779]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  500.608472][ T7779]  ? __init_waitqueue_head+0xca/0x150
[  500.615315][ T7779]  netdev_register_kobject+0x183/0x3f0
[  500.621307][ T7779]  register_netdevice+0xbe6/0x14b0
[  500.626567][ T7779]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  500.632512][ T7779]  ? validate_linkmsg+0x6fc/0x9c0
[  500.637941][ T7779]  br_dev_newlink+0x27/0x110
[  500.642749][ T7779]  ? br_changelink+0x1760/0x1760
[  500.647742][ T7779]  __rtnl_newlink+0x1173/0x1930
[  500.652822][ T7779]  ? rtnl_link_unregister+0x260/0x260
[  500.658369][ T7779]  rtnl_newlink+0x67/0xa0
[  500.663006][ T7779]  ? __rtnl_newlink+0x1930/0x1930
[  500.668339][ T7779]  rtnetlink_rcv_msg+0x3c7/0xe00
[  500.673334][ T7779]  ? rtnl_fill_vf+0x4a0/0x4a0
[  500.678326][ T7779]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  500.684718][ T7779]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  500.691108][ T7779]  netlink_rcv_skb+0x16b/0x440
[  500.696703][ T7779]  ? rtnl_fill_vf+0x4a0/0x4a0
[  500.701452][ T7779]  ? netlink_ack+0x1380/0x1380
[  500.706604][ T7779]  ? lock_sync+0x190/0x190
[  500.711180][ T7779]  ? netlink_deliver_tap+0x1a0/0xd00
[  500.716596][ T7779]  ? _copy_from_iter+0x2c1/0x10f0
[  500.722037][ T7779]  netlink_unicast+0x53b/0x810
[  500.727332][ T7779]  ? netlink_attachskb+0x880/0x880
[  500.732664][ T7779]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  500.738780][ T7779]  ? __phys_addr_symbol+0x30/0x70
[  500.744490][ T7779]  ? __check_object_size+0x323/0x730
[  500.750042][ T7779]  netlink_sendmsg+0x93c/0xe40
[  500.754964][ T7779]  ? netlink_unicast+0x810/0x810
[  500.760853][ T7779]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  500.767063][ T7779]  ? netlink_unicast+0x810/0x810
[  500.772319][ T7779]  __sock_sendmsg+0xd5/0x180
[  500.777151][ T7779]  ____sys_sendmsg+0x6ac/0x940
[  500.782130][ T7779]  ? copy_msghdr_from_user+0x10b/0x160
[  500.787748][ T7779]  ? kernel_sendmsg+0x50/0x50
[  500.792557][ T7779]  ? hlock_class+0x4e/0x130
[  500.797109][ T7779]  ? __lock_acquire+0x14e0/0x3b10
[  500.802193][ T7779]  ___sys_sendmsg+0x135/0x1d0
[  500.807539][ T7779]  ? do_recvmmsg+0x740/0x740
[  500.812323][ T7779]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  500.818875][ T7779]  ? find_held_lock+0x2d/0x110
[  500.824325][ T7779]  ? __fget_light+0x1fc/0x260
[  500.829135][ T7779]  __sys_sendmsg+0x117/0x1e0
[  500.834142][ T7779]  ? __sys_sendmsg_sock+0x30/0x30
[  500.839486][ T7779]  ? xfd_validate_state+0x5d/0x180
[  500.845453][ T7779]  ? syscall_enter_from_user_mode+0x7f/0x120
[  500.851678][ T7779]  do_syscall_64+0x40/0x110
[  500.856320][ T7779]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  500.862556][ T7779] RIP: 0033:0x7fb700fd30b9
[  500.867025][ T7779] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  500.887124][ T7779] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  500.895749][ T7779] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  500.903933][ T7779] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  500.912380][ T7779] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  500.920389][ T7779] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  500.928489][ T7779] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  500.936653][ T7779]  </TASK>
[  500.940183][ T7779] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  500.996929][ T7808] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  501.008174][ T7808] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  501.017941][ T7808] CPU: 1 PID: 7808 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  501.028305][ T7808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  501.038571][ T7808] Call Trace:
[  501.041880][ T7808]  <TASK>
[  501.044839][ T7808]  dump_stack_lvl+0x125/0x1b0
[  501.049776][ T7808]  sysfs_warn_dup+0x7f/0xa0
[  501.054419][ T7808]  sysfs_create_dir_ns+0x249/0x2b0
[  501.059576][ T7808]  ? sysfs_create_mount_point+0xb0/0xb0
[  501.065349][ T7808]  ? spin_bug+0x1d0/0x1d0
[  501.069791][ T7808]  ? net_namespace+0x12/0x40
[  501.074484][ T7808]  ? device_namespace+0x8d/0xc0
[  501.079472][ T7808]  kobject_add_internal+0x2c8/0x970
[  501.084880][ T7808]  kobject_add+0x16f/0x240
[  501.089317][ T7808]  ? kset_create_and_add+0x190/0x190
[  501.094789][ T7808]  ? do_raw_spin_unlock+0x173/0x230
[  501.100254][ T7808]  ? kobject_put+0xbe/0x440
[  501.104771][ T7808]  ? device_add+0xc35/0x1aa0
[  501.109384][ T7808]  device_add+0x289/0x1aa0
[  501.114008][ T7808]  ? device_initialize+0x510/0x510
[  501.119214][ T7808]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  501.126347][ T7808]  ? __init_waitqueue_head+0xca/0x150
[  501.132191][ T7808]  netdev_register_kobject+0x183/0x3f0
[  501.137677][ T7808]  register_netdevice+0xbe6/0x14b0
[  501.142977][ T7808]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  501.148878][ T7808]  ? validate_linkmsg+0x6fc/0x9c0
[  501.154259][ T7808]  br_dev_newlink+0x27/0x110
[  501.158862][ T7808]  ? br_changelink+0x1760/0x1760
[  501.164077][ T7808]  __rtnl_newlink+0x1173/0x1930
[  501.169303][ T7808]  ? rtnl_link_unregister+0x260/0x260
[  501.175240][ T7808]  rtnl_newlink+0x67/0xa0
[  501.180017][ T7808]  ? __rtnl_newlink+0x1930/0x1930
[  501.185147][ T7808]  rtnetlink_rcv_msg+0x3c7/0xe00
[  501.190196][ T7808]  ? rtnl_fill_vf+0x4a0/0x4a0
[  501.194879][ T7808]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  501.200869][ T7808]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  501.207129][ T7808]  netlink_rcv_skb+0x16b/0x440
[  501.211908][ T7808]  ? rtnl_fill_vf+0x4a0/0x4a0
[  501.216601][ T7808]  ? netlink_ack+0x1380/0x1380
[  501.221767][ T7808]  ? lock_sync+0x190/0x190
[  501.226484][ T7808]  ? netlink_deliver_tap+0x1a0/0xd00
[  501.232046][ T7808]  ? _copy_from_iter+0x2c1/0x10f0
[  501.237177][ T7808]  netlink_unicast+0x53b/0x810
[  501.242087][ T7808]  ? netlink_attachskb+0x880/0x880
[  501.247468][ T7808]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  501.253371][ T7808]  ? __phys_addr_symbol+0x30/0x70
[  501.258577][ T7808]  ? __check_object_size+0x323/0x730
[  501.263959][ T7808]  netlink_sendmsg+0x93c/0xe40
[  501.268913][ T7808]  ? netlink_unicast+0x810/0x810
[  501.274126][ T7808]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  501.279589][ T7808]  ? netlink_unicast+0x810/0x810
[  501.284975][ T7808]  __sock_sendmsg+0xd5/0x180
[  501.289745][ T7808]  ____sys_sendmsg+0x6ac/0x940
[  501.294600][ T7808]  ? copy_msghdr_from_user+0x10b/0x160
[  501.300067][ T7808]  ? kernel_sendmsg+0x50/0x50
[  501.304861][ T7808]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  501.310858][ T7808]  ___sys_sendmsg+0x135/0x1d0
[  501.315639][ T7808]  ? do_recvmmsg+0x740/0x740
[  501.320236][ T7808]  ? find_held_lock+0x2d/0x110
[  501.325306][ T7808]  ? preempt_count_sub+0x160/0x160
[  501.330729][ T7808]  ? __fget_light+0x1fc/0x260
[  501.335419][ T7808]  __sys_sendmsg+0x117/0x1e0
[  501.340107][ T7808]  ? __sys_sendmsg_sock+0x30/0x30
[  501.345136][ T7808]  ? xfd_validate_state+0x5d/0x180
[  501.350362][ T7808]  ? syscall_enter_from_user_mode+0x7f/0x120
[  501.356365][ T7808]  do_syscall_64+0x40/0x110
[  501.360959][ T7808]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  501.367343][ T7808] RIP: 0033:0x7fb700fd30b9
[  501.371843][ T7808] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  501.391743][ T7808] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  501.400601][ T7808] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  501.409460][ T7808] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  501.417545][ T7808] RBP: 000000000007a0c2 R08: 0000000000000000 R09: 0000000000000006
[  501.425540][ T7808] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  501.433837][ T7808] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  501.441924][ T7808]  </TASK>
[  501.449334][ T7808] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  501.506350][ T7808] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  501.516105][ T7808] CPU: 1 PID: 7808 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  501.526748][ T7808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  501.536832][ T7808] Call Trace:
[  501.540145][ T7808]  <TASK>
[  501.543096][ T7808]  dump_stack_lvl+0x125/0x1b0
[  501.547994][ T7808]  sysfs_warn_dup+0x7f/0xa0
[  501.552715][ T7808]  sysfs_create_dir_ns+0x249/0x2b0
[  501.557872][ T7808]  ? sysfs_create_mount_point+0xb0/0xb0
[  501.563639][ T7808]  ? spin_bug+0x1d0/0x1d0
[  501.568442][ T7808]  ? net_namespace+0x12/0x40
[  501.573250][ T7808]  ? device_namespace+0x8d/0xc0
[  501.578238][ T7808]  kobject_add_internal+0x2c8/0x970
[  501.583502][ T7808]  kobject_add+0x16f/0x240
[  501.588049][ T7808]  ? kset_create_and_add+0x190/0x190
[  501.593442][ T7808]  ? do_raw_spin_unlock+0x173/0x230
[  501.598773][ T7808]  ? kobject_put+0xbe/0x440
[  501.603908][ T7808]  ? device_add+0xc35/0x1aa0
[  501.608720][ T7808]  device_add+0x289/0x1aa0
[  501.613463][ T7808]  ? device_initialize+0x510/0x510
[  501.619138][ T7808]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  501.626037][ T7808]  ? __init_waitqueue_head+0xca/0x150
[  501.631551][ T7808]  netdev_register_kobject+0x183/0x3f0
[  501.637237][ T7808]  register_netdevice+0xbe6/0x14b0
[  501.642667][ T7808]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  501.648597][ T7808]  ? validate_linkmsg+0x6fc/0x9c0
[  501.653922][ T7808]  br_dev_newlink+0x27/0x110
[  501.658725][ T7808]  ? br_changelink+0x1760/0x1760
[  501.663965][ T7808]  __rtnl_newlink+0x1173/0x1930
[  501.668885][ T7808]  ? rtnl_link_unregister+0x260/0x260
[  501.674329][ T7808]  rtnl_newlink+0x67/0xa0
[  501.678868][ T7808]  ? __rtnl_newlink+0x1930/0x1930
[  501.684105][ T7808]  rtnetlink_rcv_msg+0x3c7/0xe00
[  501.689187][ T7808]  ? rtnl_fill_vf+0x4a0/0x4a0
[  501.694053][ T7808]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  501.700610][ T7808]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  501.706654][ T7808]  netlink_rcv_skb+0x16b/0x440
[  501.711647][ T7808]  ? rtnl_fill_vf+0x4a0/0x4a0
[  501.716451][ T7808]  ? netlink_ack+0x1380/0x1380
[  501.721335][ T7808]  ? lock_sync+0x190/0x190
[  501.726076][ T7808]  ? netlink_deliver_tap+0x1a0/0xd00
[  501.731498][ T7808]  ? _copy_from_iter+0x2c1/0x10f0
[  501.736668][ T7808]  netlink_unicast+0x53b/0x810
[  501.741484][ T7808]  ? netlink_attachskb+0x880/0x880
[  501.746821][ T7808]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  501.753018][ T7808]  ? __phys_addr_symbol+0x30/0x70
[  501.758431][ T7808]  ? __check_object_size+0x323/0x730
[  501.764273][ T7808]  netlink_sendmsg+0x93c/0xe40
[  501.769363][ T7808]  ? netlink_unicast+0x810/0x810
[  501.774884][ T7808]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  501.780483][ T7808]  ? netlink_unicast+0x810/0x810
[  501.785477][ T7808]  __sock_sendmsg+0xd5/0x180
[  501.790115][ T7808]  ____sys_sendmsg+0x6ac/0x940
[  501.795170][ T7808]  ? copy_msghdr_from_user+0x10b/0x160
[  501.801015][ T7808]  ? kernel_sendmsg+0x50/0x50
[  501.806205][ T7808]  ___sys_sendmsg+0x135/0x1d0
[  501.811859][ T7808]  ? do_recvmmsg+0x740/0x740
[  501.816572][ T7808]  ? find_held_lock+0x2d/0x110
[  501.821534][ T7808]  ? preempt_count_sub+0x160/0x160
[  501.827010][ T7808]  ? __fget_light+0x1fc/0x260
[  501.831811][ T7808]  __sys_sendmsg+0x117/0x1e0
[  501.836570][ T7808]  ? __sys_sendmsg_sock+0x30/0x30
[  501.841625][ T7808]  ? syscall_enter_from_user_mode+0x7f/0x120
[  501.847618][ T7808]  do_syscall_64+0x40/0x110
[  501.852160][ T7808]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  501.858346][ T7808] RIP: 0033:0x7fb700fd30b9
[  501.862762][ T7808] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  501.883164][ T7808] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  501.891979][ T7808] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  501.900717][ T7808] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  501.909220][ T7808] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  501.917197][ T7808] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  501.925687][ T7808] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  501.934273][ T7808]  </TASK>
[  501.943495][ T7808] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  501.992132][ T7823] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  502.004922][ T7823] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  502.015122][ T7823] CPU: 1 PID: 7823 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  502.025504][ T7823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  502.035588][ T7823] Call Trace:
[  502.038974][ T7823]  <TASK>
[  502.042038][ T7823]  dump_stack_lvl+0x125/0x1b0
[  502.046925][ T7823]  sysfs_warn_dup+0x7f/0xa0
[  502.051566][ T7823]  sysfs_create_dir_ns+0x249/0x2b0
[  502.056716][ T7823]  ? sysfs_create_mount_point+0xb0/0xb0
[  502.062492][ T7823]  ? spin_bug+0x1d0/0x1d0
[  502.067258][ T7823]  ? net_namespace+0x12/0x40
[  502.072232][ T7823]  ? device_namespace+0x8d/0xc0
[  502.077214][ T7823]  kobject_add_internal+0x2c8/0x970
[  502.082628][ T7823]  kobject_add+0x16f/0x240
[  502.083560][ T1229] ieee802154 phy0 wpan0: encryption failed: -22
[  502.087663][ T7823]  ? kset_create_and_add+0x190/0x190
[  502.099568][ T7823]  ? do_raw_spin_unlock+0x173/0x230
[  502.102847][ T1229] ieee802154 phy1 wpan1: encryption failed: -22
[  502.104875][ T7823]  ? kobject_put+0xbe/0x440
[  502.115721][ T7823]  ? device_add+0xc35/0x1aa0
[  502.121047][ T7823]  device_add+0x289/0x1aa0
[  502.125694][ T7823]  ? device_initialize+0x510/0x510
[  502.130846][ T7823]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  502.137927][ T7823]  ? __init_waitqueue_head+0xca/0x150
[  502.143597][ T7823]  netdev_register_kobject+0x183/0x3f0
[  502.149111][ T7823]  register_netdevice+0xbe6/0x14b0
[  502.154271][ T7823]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  502.160645][ T7823]  ? validate_linkmsg+0x6fc/0x9c0
[  502.165903][ T7823]  br_dev_newlink+0x27/0x110
[  502.170543][ T7823]  ? br_changelink+0x1760/0x1760
[  502.175518][ T7823]  __rtnl_newlink+0x1173/0x1930
[  502.180431][ T7823]  ? rtnl_link_unregister+0x260/0x260
[  502.185881][ T7823]  rtnl_newlink+0x67/0xa0
[  502.190347][ T7823]  ? __rtnl_newlink+0x1930/0x1930
[  502.195497][ T7823]  rtnetlink_rcv_msg+0x3c7/0xe00
[  502.200480][ T7823]  ? rtnl_fill_vf+0x4a0/0x4a0
[  502.205287][ T7823]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  502.211482][ T7823]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  502.217694][ T7823]  netlink_rcv_skb+0x16b/0x440
[  502.222854][ T7823]  ? rtnl_fill_vf+0x4a0/0x4a0
[  502.227573][ T7823]  ? netlink_ack+0x1380/0x1380
[  502.232376][ T7823]  ? lock_sync+0x190/0x190
[  502.236935][ T7823]  ? netlink_deliver_tap+0x1a0/0xd00
[  502.242264][ T7823]  ? _copy_from_iter+0x2c1/0x10f0
[  502.247348][ T7823]  netlink_unicast+0x53b/0x810
[  502.252244][ T7823]  ? netlink_attachskb+0x880/0x880
[  502.257398][ T7823]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  502.263637][ T7823]  ? __phys_addr_symbol+0x30/0x70
[  502.269310][ T7823]  ? __check_object_size+0x323/0x730
[  502.274989][ T7823]  netlink_sendmsg+0x93c/0xe40
[  502.280079][ T7823]  ? netlink_unicast+0x810/0x810
[  502.286038][ T7823]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  502.291375][ T7823]  ? netlink_unicast+0x810/0x810
[  502.296471][ T7823]  __sock_sendmsg+0xd5/0x180
[  502.301103][ T7823]  ____sys_sendmsg+0x6ac/0x940
[  502.305915][ T7823]  ? copy_msghdr_from_user+0x10b/0x160
[  502.311494][ T7823]  ? kernel_sendmsg+0x50/0x50
[  502.316298][ T7823]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  502.322502][ T7823]  ___sys_sendmsg+0x135/0x1d0
[  502.327284][ T7823]  ? do_recvmmsg+0x740/0x740
[  502.331919][ T7823]  ? find_held_lock+0x2d/0x110
[  502.337089][ T7823]  ? preempt_count_sub+0x160/0x160
[  502.342262][ T7823]  ? __fget_light+0x1fc/0x260
[  502.347075][ T7823]  __sys_sendmsg+0x117/0x1e0
[  502.351886][ T7823]  ? __sys_sendmsg_sock+0x30/0x30
[  502.356957][ T7823]  ? xfd_validate_state+0x5d/0x180
[  502.362131][ T7823]  ? syscall_enter_from_user_mode+0x7f/0x120
[  502.368175][ T7823]  do_syscall_64+0x40/0x110
[  502.372825][ T7823]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  502.378858][ T7823] RIP: 0033:0x7fb700fd30b9
[  502.383323][ T7823] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  502.403497][ T7823] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  502.412225][ T7823] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  502.420233][ T7823] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  502.428413][ T7823] RBP: 000000000007a4d8 R08: 0000000000000000 R09: 0000000000000006
[  502.436918][ T7823] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  502.445481][ T7823] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  502.454110][ T7823]  </TASK>
[  502.461538][ T7823] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  502.526907][ T7823] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  502.536542][ T7823] CPU: 1 PID: 7823 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  502.547953][ T7823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  502.558309][ T7823] Call Trace:
[  502.561870][ T7823]  <TASK>
[  502.564819][ T7823]  dump_stack_lvl+0x125/0x1b0
[  502.569773][ T7823]  sysfs_warn_dup+0x7f/0xa0
[  502.574389][ T7823]  sysfs_create_dir_ns+0x249/0x2b0
[  502.579513][ T7823]  ? sysfs_create_mount_point+0xb0/0xb0
[  502.585207][ T7823]  ? spin_bug+0x1d0/0x1d0
[  502.589638][ T7823]  ? net_namespace+0x12/0x40
[  502.594328][ T7823]  ? device_namespace+0x8d/0xc0
[  502.599576][ T7823]  kobject_add_internal+0x2c8/0x970
[  502.605485][ T7823]  kobject_add+0x16f/0x240
[  502.610517][ T7823]  ? kset_create_and_add+0x190/0x190
[  502.615820][ T7823]  ? do_raw_spin_unlock+0x173/0x230
[  502.621462][ T7823]  ? kobject_put+0xbe/0x440
[  502.626063][ T7823]  ? device_add+0xc35/0x1aa0
[  502.630750][ T7823]  device_add+0x289/0x1aa0
[  502.635261][ T7823]  ? device_initialize+0x510/0x510
[  502.640544][ T7823]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  502.647581][ T7823]  ? __init_waitqueue_head+0xca/0x150
[  502.653161][ T7823]  netdev_register_kobject+0x183/0x3f0
[  502.660065][ T7823]  register_netdevice+0xbe6/0x14b0
[  502.665278][ T7823]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  502.671309][ T7823]  ? validate_linkmsg+0x6fc/0x9c0
[  502.676865][ T7823]  br_dev_newlink+0x27/0x110
[  502.681726][ T7823]  ? br_changelink+0x1760/0x1760
[  502.686764][ T7823]  __rtnl_newlink+0x1173/0x1930
[  502.691634][ T7823]  ? rtnl_link_unregister+0x260/0x260
[  502.697245][ T7823]  rtnl_newlink+0x67/0xa0
[  502.701668][ T7823]  ? __rtnl_newlink+0x1930/0x1930
[  502.707020][ T7823]  rtnetlink_rcv_msg+0x3c7/0xe00
[  502.711985][ T7823]  ? rtnl_fill_vf+0x4a0/0x4a0
[  502.717119][ T7823]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  502.724086][ T7823]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  502.730204][ T7823]  netlink_rcv_skb+0x16b/0x440
[  502.735038][ T7823]  ? rtnl_fill_vf+0x4a0/0x4a0
[  502.739814][ T7823]  ? netlink_ack+0x1380/0x1380
[  502.744588][ T7823]  ? lock_sync+0x190/0x190
[  502.749396][ T7823]  ? netlink_deliver_tap+0x1a0/0xd00
[  502.754778][ T7823]  ? _copy_from_iter+0x2c1/0x10f0
[  502.760104][ T7823]  netlink_unicast+0x53b/0x810
[  502.765361][ T7823]  ? netlink_attachskb+0x880/0x880
[  502.770617][ T7823]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  502.776891][ T7823]  ? __phys_addr_symbol+0x30/0x70
[  502.782130][ T7823]  ? __check_object_size+0x323/0x730
[  502.787617][ T7823]  netlink_sendmsg+0x93c/0xe40
[  502.792549][ T7823]  ? netlink_unicast+0x810/0x810
[  502.798115][ T7823]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  502.803594][ T7823]  ? netlink_unicast+0x810/0x810
[  502.808753][ T7823]  __sock_sendmsg+0xd5/0x180
[  502.814603][ T7823]  ____sys_sendmsg+0x6ac/0x940
[  502.819389][ T7823]  ? copy_msghdr_from_user+0x10b/0x160
[  502.824861][ T7823]  ? kernel_sendmsg+0x50/0x50
[  502.829724][ T7823]  ? hlock_class+0x4e/0x130
[  502.834349][ T7823]  ? __lock_acquire+0x14e0/0x3b10
[  502.839656][ T7823]  ___sys_sendmsg+0x135/0x1d0
[  502.845045][ T7823]  ? do_recvmmsg+0x740/0x740
[  502.849817][ T7823]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  502.856071][ T7823]  ? find_held_lock+0x2d/0x110
[  502.860877][ T7823]  ? __fget_light+0x1fc/0x260
[  502.865567][ T7823]  __sys_sendmsg+0x117/0x1e0
[  502.870203][ T7823]  ? __sys_sendmsg_sock+0x30/0x30
[  502.875346][ T7823]  ? xfd_validate_state+0x5d/0x180
[  502.881055][ T7823]  ? syscall_enter_from_user_mode+0x7f/0x120
[  502.887144][ T7823]  do_syscall_64+0x40/0x110
[  502.891656][ T7823]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  502.897564][ T7823] RIP: 0033:0x7fb700fd30b9
[  502.901981][ T7823] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  502.924788][ T7823] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  502.934287][ T7823] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  502.942673][ T7823] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  502.951028][ T7823] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  502.959871][ T7823] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  502.968647][ T7823] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  502.977259][ T7823]  </TASK>
[  502.983821][ T7823] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  503.062635][ T7842] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  503.074021][ T7842] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  503.085814][ T7842] CPU: 1 PID: 7842 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  503.096117][ T7842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  503.106716][ T7842] Call Trace:
[  503.110196][ T7842]  <TASK>
[  503.113220][ T7842]  dump_stack_lvl+0x125/0x1b0
[  503.117909][ T7842]  sysfs_warn_dup+0x7f/0xa0
[  503.122594][ T7842]  sysfs_create_dir_ns+0x249/0x2b0
[  503.128070][ T7842]  ? sysfs_create_mount_point+0xb0/0xb0
[  503.133628][ T7842]  ? spin_bug+0x1d0/0x1d0
[  503.137974][ T7842]  ? net_namespace+0x12/0x40
[  503.142568][ T7842]  ? device_namespace+0x8d/0xc0
[  503.147437][ T7842]  kobject_add_internal+0x2c8/0x970
[  503.152741][ T7842]  kobject_add+0x16f/0x240
[  503.157165][ T7842]  ? kset_create_and_add+0x190/0x190
[  503.162569][ T7842]  ? do_raw_spin_unlock+0x173/0x230
[  503.167786][ T7842]  ? kobject_put+0xbe/0x440
[  503.172476][ T7842]  ? device_add+0xc35/0x1aa0
[  503.177166][ T7842]  device_add+0x289/0x1aa0
[  503.181593][ T7842]  ? device_initialize+0x510/0x510
[  503.186710][ T7842]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  503.193707][ T7842]  ? __init_waitqueue_head+0xca/0x150
[  503.199114][ T7842]  netdev_register_kobject+0x183/0x3f0
[  503.204770][ T7842]  register_netdevice+0xbe6/0x14b0
[  503.209984][ T7842]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  503.216312][ T7842]  ? validate_linkmsg+0x6fc/0x9c0
[  503.222373][ T7842]  br_dev_newlink+0x27/0x110
[  503.227271][ T7842]  ? br_changelink+0x1760/0x1760
[  503.232405][ T7842]  __rtnl_newlink+0x1173/0x1930
[  503.237365][ T7842]  ? rtnl_link_unregister+0x260/0x260
[  503.243036][ T7842]  rtnl_newlink+0x67/0xa0
[  503.247638][ T7842]  ? __rtnl_newlink+0x1930/0x1930
[  503.253114][ T7842]  rtnetlink_rcv_msg+0x3c7/0xe00
[  503.258245][ T7842]  ? rtnl_fill_vf+0x4a0/0x4a0
[  503.263192][ T7842]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  503.269186][ T7842]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  503.275477][ T7842]  netlink_rcv_skb+0x16b/0x440
[  503.280301][ T7842]  ? rtnl_fill_vf+0x4a0/0x4a0
[  503.285020][ T7842]  ? netlink_ack+0x1380/0x1380
[  503.289812][ T7842]  ? lock_sync+0x190/0x190
[  503.294519][ T7842]  ? netlink_deliver_tap+0x1a0/0xd00
[  503.299981][ T7842]  ? _copy_from_iter+0x2c1/0x10f0
[  503.305019][ T7842]  netlink_unicast+0x53b/0x810
[  503.309887][ T7842]  ? netlink_attachskb+0x880/0x880
[  503.315367][ T7842]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  503.321470][ T7842]  ? __phys_addr_symbol+0x30/0x70
[  503.326606][ T7842]  ? __check_object_size+0x323/0x730
[  503.331943][ T7842]  netlink_sendmsg+0x93c/0xe40
[  503.337000][ T7842]  ? netlink_unicast+0x810/0x810
[  503.342067][ T7842]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  503.347568][ T7842]  ? netlink_unicast+0x810/0x810
[  503.352537][ T7842]  __sock_sendmsg+0xd5/0x180
[  503.357240][ T7842]  ____sys_sendmsg+0x6ac/0x940
[  503.362188][ T7842]  ? copy_msghdr_from_user+0x10b/0x160
[  503.367918][ T7842]  ? kernel_sendmsg+0x50/0x50
[  503.372611][ T7842]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  503.378955][ T7842]  ___sys_sendmsg+0x135/0x1d0
[  503.383731][ T7842]  ? do_recvmmsg+0x740/0x740
[  503.388330][ T7842]  ? find_held_lock+0x2d/0x110
[  503.393200][ T7842]  ? preempt_count_sub+0x160/0x160
[  503.398446][ T7842]  ? __fget_light+0x1fc/0x260
[  503.403308][ T7842]  __sys_sendmsg+0x117/0x1e0
[  503.407922][ T7842]  ? __sys_sendmsg_sock+0x30/0x30
[  503.413075][ T7842]  ? xfd_validate_state+0x5d/0x180
[  503.418397][ T7842]  ? syscall_enter_from_user_mode+0x7f/0x120
[  503.424480][ T7842]  do_syscall_64+0x40/0x110
[  503.429254][ T7842]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  503.435182][ T7842] RIP: 0033:0x7fb700fd30b9
[  503.439788][ T7842] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  503.459846][ T7842] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  503.468615][ T7842] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  503.476683][ T7842] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  503.485813][ T7842] RBP: 000000000007a8bb R08: 0000000000000000 R09: 0000000000000006
[  503.494018][ T7842] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  503.502348][ T7842] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  503.510600][ T7842]  </TASK>
[  503.527909][ T7842] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  503.597639][ T7842] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  503.607348][ T7842] CPU: 0 PID: 7842 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  503.617633][ T7842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  503.628588][ T7842] Call Trace:
[  503.631897][ T7842]  <TASK>
[  503.634938][ T7842]  dump_stack_lvl+0x125/0x1b0
[  503.639763][ T7842]  sysfs_warn_dup+0x7f/0xa0
[  503.644407][ T7842]  sysfs_create_dir_ns+0x249/0x2b0
[  503.649658][ T7842]  ? sysfs_create_mount_point+0xb0/0xb0
[  503.655428][ T7842]  ? spin_bug+0x1d0/0x1d0
[  503.659881][ T7842]  ? net_namespace+0x12/0x40
[  503.664860][ T7842]  ? device_namespace+0x8d/0xc0
[  503.669995][ T7842]  kobject_add_internal+0x2c8/0x970
[  503.675337][ T7842]  kobject_add+0x16f/0x240
[  503.679941][ T7842]  ? kset_create_and_add+0x190/0x190
[  503.685256][ T7842]  ? do_raw_spin_unlock+0x173/0x230
[  503.691000][ T7842]  ? kobject_put+0xbe/0x440
[  503.695523][ T7842]  ? device_add+0xc35/0x1aa0
[  503.700126][ T7842]  device_add+0x289/0x1aa0
[  503.704561][ T7842]  ? device_initialize+0x510/0x510
[  503.709675][ T7842]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  503.716543][ T7842]  ? __init_waitqueue_head+0xca/0x150
[  503.721929][ T7842]  netdev_register_kobject+0x183/0x3f0
[  503.727407][ T7842]  register_netdevice+0xbe6/0x14b0
[  503.732533][ T7842]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  503.738458][ T7842]  ? validate_linkmsg+0x6fc/0x9c0
[  503.743691][ T7842]  br_dev_newlink+0x27/0x110
[  503.748387][ T7842]  ? br_changelink+0x1760/0x1760
[  503.753417][ T7842]  __rtnl_newlink+0x1173/0x1930
[  503.758374][ T7842]  ? rtnl_link_unregister+0x260/0x260
[  503.763887][ T7842]  rtnl_newlink+0x67/0xa0
[  503.768254][ T7842]  ? __rtnl_newlink+0x1930/0x1930
[  503.773616][ T7842]  rtnetlink_rcv_msg+0x3c7/0xe00
[  503.778779][ T7842]  ? rtnl_fill_vf+0x4a0/0x4a0
[  503.783818][ T7842]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  503.790346][ T7842]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  503.796607][ T7842]  netlink_rcv_skb+0x16b/0x440
[  503.801559][ T7842]  ? rtnl_fill_vf+0x4a0/0x4a0
[  503.806331][ T7842]  ? netlink_ack+0x1380/0x1380
[  503.811190][ T7842]  ? lock_sync+0x190/0x190
[  503.816077][ T7842]  ? netlink_deliver_tap+0x1a0/0xd00
[  503.821469][ T7842]  ? _copy_from_iter+0x2c1/0x10f0
[  503.826680][ T7842]  netlink_unicast+0x53b/0x810
[  503.831788][ T7842]  ? netlink_attachskb+0x880/0x880
[  503.837279][ T7842]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  503.843190][ T7842]  ? __phys_addr_symbol+0x30/0x70
[  503.848837][ T7842]  ? __check_object_size+0x323/0x730
[  503.854405][ T7842]  netlink_sendmsg+0x93c/0xe40
[  503.859187][ T7842]  ? netlink_unicast+0x810/0x810
[  503.864141][ T7842]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  503.869606][ T7842]  ? netlink_unicast+0x810/0x810
[  503.874666][ T7842]  __sock_sendmsg+0xd5/0x180
[  503.879464][ T7842]  ____sys_sendmsg+0x6ac/0x940
[  503.884341][ T7842]  ? copy_msghdr_from_user+0x10b/0x160
[  503.889906][ T7842]  ? kernel_sendmsg+0x50/0x50
[  503.894678][ T7842]  ? hlock_class+0x4e/0x130
[  503.899471][ T7842]  ? __lock_acquire+0x14e0/0x3b10
[  503.904608][ T7842]  ___sys_sendmsg+0x135/0x1d0
[  503.909917][ T7842]  ? do_recvmmsg+0x740/0x740
[  503.914667][ T7842]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  503.920960][ T7842]  ? find_held_lock+0x2d/0x110
[  503.925774][ T7842]  ? __fget_light+0x1fc/0x260
[  503.930621][ T7842]  __sys_sendmsg+0x117/0x1e0
[  503.935341][ T7842]  ? __sys_sendmsg_sock+0x30/0x30
[  503.940472][ T7842]  ? __do_sys_rseq+0x750/0x750
[  503.945535][ T7842]  ? syscall_enter_from_user_mode+0x7f/0x120
[  503.951818][ T7842]  do_syscall_64+0x40/0x110
[  503.956550][ T7842]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  503.962544][ T7842] RIP: 0033:0x7fb700fd30b9
[  503.967186][ T7842] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  503.987107][ T7842] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  503.995784][ T7842] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  504.004166][ T7842] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  504.012403][ T7842] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  504.020485][ T7842] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  504.028458][ T7842] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  504.036876][ T7842]  </TASK>
[  504.044305][ T7842] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  504.103147][ T7852] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  504.114205][ T7852] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  504.123862][ T7852] CPU: 1 PID: 7852 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  504.134137][ T7852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  504.144390][ T7852] Call Trace:
[  504.147697][ T7852]  <TASK>
[  504.151027][ T7852]  dump_stack_lvl+0x125/0x1b0
[  504.155722][ T7852]  sysfs_warn_dup+0x7f/0xa0
[  504.160509][ T7852]  sysfs_create_dir_ns+0x249/0x2b0
[  504.165626][ T7852]  ? sysfs_create_mount_point+0xb0/0xb0
[  504.171260][ T7852]  ? spin_bug+0x1d0/0x1d0
[  504.175585][ T7852]  ? net_namespace+0x12/0x40
[  504.180184][ T7852]  ? device_namespace+0x8d/0xc0
[  504.185748][ T7852]  kobject_add_internal+0x2c8/0x970
[  504.191052][ T7852]  kobject_add+0x16f/0x240
[  504.195477][ T7852]  ? kset_create_and_add+0x190/0x190
[  504.200808][ T7852]  ? do_raw_spin_unlock+0x173/0x230
[  504.206189][ T7852]  ? kobject_put+0xbe/0x440
[  504.211062][ T7852]  ? device_add+0xc35/0x1aa0
[  504.215827][ T7852]  device_add+0x289/0x1aa0
[  504.220621][ T7852]  ? device_initialize+0x510/0x510
[  504.225747][ T7852]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  504.232800][ T7852]  ? __init_waitqueue_head+0xca/0x150
[  504.238276][ T7852]  netdev_register_kobject+0x183/0x3f0
[  504.244176][ T7852]  register_netdevice+0xbe6/0x14b0
[  504.249383][ T7852]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  504.255359][ T7852]  ? validate_linkmsg+0x6fc/0x9c0
[  504.260583][ T7852]  br_dev_newlink+0x27/0x110
[  504.265287][ T7852]  ? br_changelink+0x1760/0x1760
[  504.270281][ T7852]  __rtnl_newlink+0x1173/0x1930
[  504.275160][ T7852]  ? rtnl_link_unregister+0x260/0x260
[  504.280878][ T7852]  rtnl_newlink+0x67/0xa0
[  504.285932][ T7852]  ? __rtnl_newlink+0x1930/0x1930
[  504.291175][ T7852]  rtnetlink_rcv_msg+0x3c7/0xe00
[  504.297765][ T7852]  ? rtnl_fill_vf+0x4a0/0x4a0
[  504.302901][ T7852]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  504.309339][ T7852]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  504.315706][ T7852]  netlink_rcv_skb+0x16b/0x440
[  504.320776][ T7852]  ? rtnl_fill_vf+0x4a0/0x4a0
[  504.326079][ T7852]  ? netlink_ack+0x1380/0x1380
[  504.330960][ T7852]  ? lock_sync+0x190/0x190
[  504.335480][ T7852]  ? netlink_deliver_tap+0x1a0/0xd00
[  504.340967][ T7852]  ? _copy_from_iter+0x2c1/0x10f0
[  504.346186][ T7852]  netlink_unicast+0x53b/0x810
[  504.351182][ T7852]  ? netlink_attachskb+0x880/0x880
[  504.356315][ T7852]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  504.362434][ T7852]  ? __phys_addr_symbol+0x30/0x70
[  504.367552][ T7852]  ? __check_object_size+0x323/0x730
[  504.372939][ T7852]  netlink_sendmsg+0x93c/0xe40
[  504.377705][ T7852]  ? netlink_unicast+0x810/0x810
[  504.382909][ T7852]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  504.388276][ T7852]  ? netlink_unicast+0x810/0x810
[  504.393211][ T7852]  __sock_sendmsg+0xd5/0x180
[  504.397817][ T7852]  ____sys_sendmsg+0x6ac/0x940
[  504.402575][ T7852]  ? copy_msghdr_from_user+0x10b/0x160
[  504.408124][ T7852]  ? kernel_sendmsg+0x50/0x50
[  504.412819][ T7852]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  504.418799][ T7852]  ___sys_sendmsg+0x135/0x1d0
[  504.423563][ T7852]  ? do_recvmmsg+0x740/0x740
[  504.428323][ T7852]  ? find_held_lock+0x2d/0x110
[  504.433179][ T7852]  ? preempt_count_sub+0x160/0x160
[  504.438377][ T7852]  ? __fget_light+0x1fc/0x260
[  504.443307][ T7852]  __sys_sendmsg+0x117/0x1e0
[  504.448012][ T7852]  ? __sys_sendmsg_sock+0x30/0x30
[  504.453170][ T7852]  ? syscall_enter_from_user_mode+0x7f/0x120
[  504.459151][ T7852]  do_syscall_64+0x40/0x110
[  504.463652][ T7852]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  504.469726][ T7852] RIP: 0033:0x7fb700fd30b9
[  504.474143][ T7852] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  504.495492][ T7852] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  504.504255][ T7852] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  504.512570][ T7852] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  504.520907][ T7852] RBP: 000000000007ace9 R08: 0000000000000000 R09: 0000000000000006
[  504.529484][ T7852] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  504.537535][ T7852] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  504.545684][ T7852]  </TASK>
[  504.550759][ T7852] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  504.587000][ T7852] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  504.597107][ T7852] CPU: 1 PID: 7852 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  504.607471][ T7852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  504.617835][ T7852] Call Trace:
[  504.621317][ T7852]  <TASK>
[  504.624808][ T7852]  dump_stack_lvl+0x125/0x1b0
[  504.629872][ T7852]  sysfs_warn_dup+0x7f/0xa0
[  504.634510][ T7852]  sysfs_create_dir_ns+0x249/0x2b0
[  504.639690][ T7852]  ? sysfs_create_mount_point+0xb0/0xb0
[  504.645457][ T7852]  ? spin_bug+0x1d0/0x1d0
[  504.649925][ T7852]  ? net_namespace+0x12/0x40
[  504.655108][ T7852]  ? device_namespace+0x8d/0xc0
[  504.660017][ T7852]  kobject_add_internal+0x2c8/0x970
[  504.665447][ T7852]  kobject_add+0x16f/0x240
[  504.669908][ T7852]  ? kset_create_and_add+0x190/0x190
[  504.676924][ T7852]  ? do_raw_spin_unlock+0x173/0x230
[  504.682793][ T7852]  ? kobject_put+0xbe/0x440
[  504.687779][ T7852]  ? device_add+0xc35/0x1aa0
[  504.692864][ T7852]  device_add+0x289/0x1aa0
[  504.697427][ T7852]  ? device_initialize+0x510/0x510
[  504.702687][ T7852]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  504.709848][ T7852]  ? __init_waitqueue_head+0xca/0x150
[  504.715368][ T7852]  netdev_register_kobject+0x183/0x3f0
[  504.720974][ T7852]  register_netdevice+0xbe6/0x14b0
[  504.726340][ T7852]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  504.732404][ T7852]  ? validate_linkmsg+0x6fc/0x9c0
[  504.737573][ T7852]  br_dev_newlink+0x27/0x110
[  504.742389][ T7852]  ? br_changelink+0x1760/0x1760
[  504.747735][ T7852]  __rtnl_newlink+0x1173/0x1930
[  504.752823][ T7852]  ? rtnl_link_unregister+0x260/0x260
[  504.758381][ T7852]  rtnl_newlink+0x67/0xa0
[  504.763207][ T7852]  ? __rtnl_newlink+0x1930/0x1930
[  504.770371][ T7852]  rtnetlink_rcv_msg+0x3c7/0xe00
[  504.775973][ T7852]  ? rtnl_fill_vf+0x4a0/0x4a0
[  504.780700][ T7852]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  504.787094][ T7852]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  504.793493][ T7852]  netlink_rcv_skb+0x16b/0x440
[  504.798400][ T7852]  ? rtnl_fill_vf+0x4a0/0x4a0
[  504.803132][ T7852]  ? netlink_ack+0x1380/0x1380
[  504.808116][ T7852]  ? lock_sync+0x190/0x190
[  504.812682][ T7852]  ? netlink_deliver_tap+0x1a0/0xd00
[  504.818094][ T7852]  ? _copy_from_iter+0x2c1/0x10f0
[  504.823695][ T7852]  netlink_unicast+0x53b/0x810
[  504.828562][ T7852]  ? netlink_attachskb+0x880/0x880
[  504.833815][ T7852]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  504.839845][ T7852]  ? __phys_addr_symbol+0x30/0x70
[  504.844922][ T7852]  ? __check_object_size+0x323/0x730
[  504.850511][ T7852]  netlink_sendmsg+0x93c/0xe40
[  504.855362][ T7852]  ? netlink_unicast+0x810/0x810
[  504.860503][ T7852]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  504.865849][ T7852]  ? netlink_unicast+0x810/0x810
[  504.870898][ T7852]  __sock_sendmsg+0xd5/0x180
[  504.876145][ T7852]  ____sys_sendmsg+0x6ac/0x940
[  504.881135][ T7852]  ? copy_msghdr_from_user+0x10b/0x160
[  504.887859][ T7852]  ? kernel_sendmsg+0x50/0x50
[  504.892812][ T7852]  ___sys_sendmsg+0x135/0x1d0
[  504.898987][ T7852]  ? do_recvmmsg+0x740/0x740
[  504.903915][ T7852]  ? find_held_lock+0x2d/0x110
[  504.909467][ T7852]  ? preempt_count_sub+0x160/0x160
[  504.916376][ T7852]  ? __fget_light+0x1fc/0x260
[  504.921805][ T7852]  __sys_sendmsg+0x117/0x1e0
[  504.927233][ T7852]  ? __sys_sendmsg_sock+0x30/0x30
[  504.932566][ T7852]  ? syscall_enter_from_user_mode+0x7f/0x120
[  504.938872][ T7852]  do_syscall_64+0x40/0x110
[  504.943686][ T7852]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  504.949638][ T7852] RIP: 0033:0x7fb700fd30b9
[  504.954092][ T7852] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  504.974622][ T7852] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  504.984725][ T7852] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  504.993515][ T7852] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  505.001925][ T7852] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  505.010286][ T7852] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  505.018358][ T7852] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  505.026558][ T7852]  </TASK>
[  505.037694][ T7852] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  505.101887][ T7868] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  505.115207][ T7868] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  505.124656][ T7868] CPU: 1 PID: 7868 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  505.135469][ T7868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  505.145989][ T7868] Call Trace:
[  505.149301][ T7868]  <TASK>
[  505.152289][ T7868]  dump_stack_lvl+0x125/0x1b0
[  505.157354][ T7868]  sysfs_warn_dup+0x7f/0xa0
[  505.161901][ T7868]  sysfs_create_dir_ns+0x249/0x2b0
[  505.167433][ T7868]  ? sysfs_create_mount_point+0xb0/0xb0
[  505.173046][ T7868]  ? spin_bug+0x1d0/0x1d0
[  505.177511][ T7868]  ? net_namespace+0x12/0x40
[  505.182144][ T7868]  ? device_namespace+0x8d/0xc0
[  505.187231][ T7868]  kobject_add_internal+0x2c8/0x970
[  505.192566][ T7868]  kobject_add+0x16f/0x240
[  505.197025][ T7868]  ? kset_create_and_add+0x190/0x190
[  505.202448][ T7868]  ? do_raw_spin_unlock+0x173/0x230
[  505.207742][ T7868]  ? kobject_put+0xbe/0x440
[  505.212464][ T7868]  ? device_add+0xc35/0x1aa0
[  505.217282][ T7868]  device_add+0x289/0x1aa0
[  505.221830][ T7868]  ? device_initialize+0x510/0x510
[  505.227168][ T7868]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  505.234080][ T7868]  ? __init_waitqueue_head+0xca/0x150
[  505.239594][ T7868]  netdev_register_kobject+0x183/0x3f0
[  505.245199][ T7868]  register_netdevice+0xbe6/0x14b0
[  505.250381][ T7868]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  505.256499][ T7868]  ? validate_linkmsg+0x6fc/0x9c0
[  505.261579][ T7868]  br_dev_newlink+0x27/0x110
[  505.266390][ T7868]  ? br_changelink+0x1760/0x1760
[  505.271362][ T7868]  __rtnl_newlink+0x1173/0x1930
[  505.276529][ T7868]  ? rtnl_link_unregister+0x260/0x260
[  505.282080][ T7868]  rtnl_newlink+0x67/0xa0
[  505.286975][ T7868]  ? __rtnl_newlink+0x1930/0x1930
[  505.292044][ T7868]  rtnetlink_rcv_msg+0x3c7/0xe00
[  505.297312][ T7868]  ? rtnl_fill_vf+0x4a0/0x4a0
[  505.302033][ T7868]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  505.308240][ T7868]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  505.314639][ T7868]  netlink_rcv_skb+0x16b/0x440
[  505.319537][ T7868]  ? rtnl_fill_vf+0x4a0/0x4a0
[  505.324257][ T7868]  ? netlink_ack+0x1380/0x1380
[  505.329153][ T7868]  ? lock_sync+0x190/0x190
[  505.333984][ T7868]  ? netlink_deliver_tap+0x1a0/0xd00
[  505.339315][ T7868]  ? _copy_from_iter+0x2c1/0x10f0
[  505.344719][ T7868]  netlink_unicast+0x53b/0x810
[  505.349537][ T7868]  ? netlink_attachskb+0x880/0x880
[  505.354699][ T7868]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  505.360865][ T7868]  ? __phys_addr_symbol+0x30/0x70
[  505.366217][ T7868]  ? __check_object_size+0x323/0x730
[  505.371728][ T7868]  netlink_sendmsg+0x93c/0xe40
[  505.376640][ T7868]  ? netlink_unicast+0x810/0x810
[  505.381800][ T7868]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  505.387142][ T7868]  ? netlink_unicast+0x810/0x810
[  505.392212][ T7868]  __sock_sendmsg+0xd5/0x180
[  505.396852][ T7868]  ____sys_sendmsg+0x6ac/0x940
[  505.401758][ T7868]  ? copy_msghdr_from_user+0x10b/0x160
[  505.407264][ T7868]  ? kernel_sendmsg+0x50/0x50
[  505.412000][ T7868]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  505.418214][ T7868]  ___sys_sendmsg+0x135/0x1d0
[  505.422948][ T7868]  ? do_recvmmsg+0x740/0x740
[  505.427875][ T7868]  ? find_held_lock+0x2d/0x110
[  505.432792][ T7868]  ? preempt_count_sub+0x160/0x160
[  505.438249][ T7868]  ? __fget_light+0x1fc/0x260
[  505.443270][ T7868]  __sys_sendmsg+0x117/0x1e0
[  505.448200][ T7868]  ? __sys_sendmsg_sock+0x30/0x30
[  505.453350][ T7868]  ? xfd_validate_state+0x5d/0x180
[  505.458533][ T7868]  ? syscall_enter_from_user_mode+0x7f/0x120
[  505.464745][ T7868]  do_syscall_64+0x40/0x110
[  505.469401][ T7868]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  505.475601][ T7868] RIP: 0033:0x7fb700fd30b9
[  505.480140][ T7868] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  505.500261][ T7868] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  505.509241][ T7868] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  505.517252][ T7868] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  505.525376][ T7868] RBP: 000000000007b0f9 R08: 0000000000000000 R09: 0000000000000006
[  505.533460][ T7868] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  505.541517][ T7868] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  505.549673][ T7868]  </TASK>
[  505.555298][ T7868] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  505.616237][ T7868] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  505.625855][ T7868] CPU: 1 PID: 7868 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  505.636220][ T7868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  505.646824][ T7868] Call Trace:
[  505.650229][ T7868]  <TASK>
[  505.653351][ T7868]  dump_stack_lvl+0x125/0x1b0
[  505.658159][ T7868]  sysfs_warn_dup+0x7f/0xa0
[  505.663239][ T7868]  sysfs_create_dir_ns+0x249/0x2b0
[  505.668758][ T7868]  ? sysfs_create_mount_point+0xb0/0xb0
[  505.674524][ T7868]  ? spin_bug+0x1d0/0x1d0
[  505.678895][ T7868]  ? net_namespace+0x12/0x40
[  505.683705][ T7868]  ? device_namespace+0x8d/0xc0
[  505.688779][ T7868]  kobject_add_internal+0x2c8/0x970
[  505.694203][ T7868]  kobject_add+0x16f/0x240
[  505.698677][ T7868]  ? kset_create_and_add+0x190/0x190
[  505.704003][ T7868]  ? do_raw_spin_unlock+0x173/0x230
[  505.709236][ T7868]  ? kobject_put+0xbe/0x440
[  505.713777][ T7868]  ? device_add+0xc35/0x1aa0
[  505.718409][ T7868]  device_add+0x289/0x1aa0
[  505.722871][ T7868]  ? device_initialize+0x510/0x510
[  505.728109][ T7868]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  505.735621][ T7868]  ? __init_waitqueue_head+0xca/0x150
[  505.741060][ T7868]  netdev_register_kobject+0x183/0x3f0
[  505.746670][ T7868]  register_netdevice+0xbe6/0x14b0
[  505.752445][ T7868]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  505.758561][ T7868]  ? validate_linkmsg+0x6fc/0x9c0
[  505.763633][ T7868]  br_dev_newlink+0x27/0x110
[  505.768266][ T7868]  ? br_changelink+0x1760/0x1760
[  505.773243][ T7868]  __rtnl_newlink+0x1173/0x1930
[  505.778155][ T7868]  ? rtnl_link_unregister+0x260/0x260
[  505.783611][ T7868]  rtnl_newlink+0x67/0xa0
[  505.788090][ T7868]  ? __rtnl_newlink+0x1930/0x1930
[  505.793166][ T7868]  rtnetlink_rcv_msg+0x3c7/0xe00
[  505.798163][ T7868]  ? rtnl_fill_vf+0x4a0/0x4a0
[  505.803150][ T7868]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  505.809185][ T7868]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  505.815324][ T7868]  netlink_rcv_skb+0x16b/0x440
[  505.820135][ T7868]  ? rtnl_fill_vf+0x4a0/0x4a0
[  505.825032][ T7868]  ? netlink_ack+0x1380/0x1380
[  505.830007][ T7868]  ? lock_sync+0x190/0x190
[  505.834866][ T7868]  ? netlink_deliver_tap+0x1a0/0xd00
[  505.840290][ T7868]  ? _copy_from_iter+0x2c1/0x10f0
[  505.845678][ T7868]  netlink_unicast+0x53b/0x810
[  505.850501][ T7868]  ? netlink_attachskb+0x880/0x880
[  505.855659][ T7868]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  505.861860][ T7868]  ? __phys_addr_symbol+0x30/0x70
[  505.867036][ T7868]  ? __check_object_size+0x323/0x730
[  505.872382][ T7868]  netlink_sendmsg+0x93c/0xe40
[  505.877471][ T7868]  ? netlink_unicast+0x810/0x810
[  505.882564][ T7868]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  505.887980][ T7868]  ? netlink_unicast+0x810/0x810
[  505.892965][ T7868]  __sock_sendmsg+0xd5/0x180
[  505.897598][ T7868]  ____sys_sendmsg+0x6ac/0x940
[  505.902484][ T7868]  ? copy_msghdr_from_user+0x10b/0x160
[  505.908161][ T7868]  ? kernel_sendmsg+0x50/0x50
[  505.912973][ T7868]  ? hlock_class+0x4e/0x130
[  505.917699][ T7868]  ? __lock_acquire+0x14e0/0x3b10
[  505.922778][ T7868]  ___sys_sendmsg+0x135/0x1d0
[  505.927603][ T7868]  ? do_recvmmsg+0x740/0x740
[  505.932332][ T7868]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  505.938723][ T7868]  ? find_held_lock+0x2d/0x110
[  505.944456][ T7868]  ? __fget_light+0x1fc/0x260
[  505.949447][ T7868]  __sys_sendmsg+0x117/0x1e0
[  505.954454][ T7868]  ? __sys_sendmsg_sock+0x30/0x30
[  505.960601][ T7868]  ? xfd_validate_state+0x5d/0x180
[  505.966339][ T7868]  ? syscall_enter_from_user_mode+0x7f/0x120
[  505.972672][ T7868]  do_syscall_64+0x40/0x110
[  505.978866][ T7868]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  505.985081][ T7868] RIP: 0033:0x7fb700fd30b9
[  505.989678][ T7868] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  506.009936][ T7868] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  506.018475][ T7868] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  506.026932][ T7868] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  506.035091][ T7868] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  506.043269][ T7868] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  506.051356][ T7868] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  506.059632][ T7868]  </TASK>
[  506.070911][ T7868] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  506.133601][ T7897] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  506.145271][ T7897] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  506.155165][ T7897] CPU: 1 PID: 7897 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  506.165710][ T7897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  506.175900][ T7897] Call Trace:
[  506.179552][ T7897]  <TASK>
[  506.182528][ T7897]  dump_stack_lvl+0x125/0x1b0
[  506.187417][ T7897]  sysfs_warn_dup+0x7f/0xa0
[  506.192075][ T7897]  sysfs_create_dir_ns+0x249/0x2b0
[  506.197257][ T7897]  ? sysfs_create_mount_point+0xb0/0xb0
[  506.203347][ T7897]  ? spin_bug+0x1d0/0x1d0
[  506.207701][ T7897]  ? net_namespace+0x12/0x40
[  506.212300][ T7897]  ? device_namespace+0x8d/0xc0
[  506.217477][ T7897]  kobject_add_internal+0x2c8/0x970
[  506.222909][ T7897]  kobject_add+0x16f/0x240
[  506.227568][ T7897]  ? kset_create_and_add+0x190/0x190
[  506.232864][ T7897]  ? do_raw_spin_unlock+0x173/0x230
[  506.238329][ T7897]  ? kobject_put+0xbe/0x440
[  506.243047][ T7897]  ? device_add+0xc35/0x1aa0
[  506.247820][ T7897]  device_add+0x289/0x1aa0
[  506.252351][ T7897]  ? device_initialize+0x510/0x510
[  506.257490][ T7897]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  506.264704][ T7897]  ? __init_waitqueue_head+0xca/0x150
[  506.270194][ T7897]  netdev_register_kobject+0x183/0x3f0
[  506.275846][ T7897]  register_netdevice+0xbe6/0x14b0
[  506.281147][ T7897]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  506.287066][ T7897]  ? validate_linkmsg+0x6fc/0x9c0
[  506.292189][ T7897]  br_dev_newlink+0x27/0x110
[  506.296886][ T7897]  ? br_changelink+0x1760/0x1760
[  506.301960][ T7897]  __rtnl_newlink+0x1173/0x1930
[  506.307117][ T7897]  ? rtnl_link_unregister+0x260/0x260
[  506.312616][ T7897]  rtnl_newlink+0x67/0xa0
[  506.317081][ T7897]  ? __rtnl_newlink+0x1930/0x1930
[  506.322589][ T7897]  rtnetlink_rcv_msg+0x3c7/0xe00
[  506.328956][ T7897]  ? rtnl_fill_vf+0x4a0/0x4a0
[  506.333648][ T7897]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  506.339971][ T7897]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  506.346146][ T7897]  netlink_rcv_skb+0x16b/0x440
[  506.350952][ T7897]  ? rtnl_fill_vf+0x4a0/0x4a0
[  506.355689][ T7897]  ? netlink_ack+0x1380/0x1380
[  506.360733][ T7897]  ? lock_sync+0x190/0x190
[  506.365277][ T7897]  ? netlink_deliver_tap+0x1a0/0xd00
[  506.370591][ T7897]  ? _copy_from_iter+0x2c1/0x10f0
[  506.375821][ T7897]  netlink_unicast+0x53b/0x810
[  506.380694][ T7897]  ? netlink_attachskb+0x880/0x880
[  506.386250][ T7897]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  506.392243][ T7897]  ? __phys_addr_symbol+0x30/0x70
[  506.397593][ T7897]  ? __check_object_size+0x323/0x730
[  506.403019][ T7897]  netlink_sendmsg+0x93c/0xe40
[  506.408077][ T7897]  ? netlink_unicast+0x810/0x810
[  506.413043][ T7897]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  506.418365][ T7897]  ? netlink_unicast+0x810/0x810
[  506.423454][ T7897]  __sock_sendmsg+0xd5/0x180
[  506.428335][ T7897]  ____sys_sendmsg+0x6ac/0x940
[  506.433308][ T7897]  ? copy_msghdr_from_user+0x10b/0x160
[  506.438952][ T7897]  ? kernel_sendmsg+0x50/0x50
[  506.443824][ T7897]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  506.450090][ T7897]  ___sys_sendmsg+0x135/0x1d0
[  506.454781][ T7897]  ? do_recvmmsg+0x740/0x740
[  506.459705][ T7897]  ? find_held_lock+0x2d/0x110
[  506.464681][ T7897]  ? preempt_count_sub+0x160/0x160
[  506.470342][ T7897]  ? __fget_light+0x1fc/0x260
[  506.475201][ T7897]  __sys_sendmsg+0x117/0x1e0
[  506.480263][ T7897]  ? __sys_sendmsg_sock+0x30/0x30
[  506.485989][ T7897]  ? xfd_validate_state+0x5d/0x180
[  506.491475][ T7897]  ? syscall_enter_from_user_mode+0x7f/0x120
[  506.497747][ T7897]  do_syscall_64+0x40/0x110
[  506.502607][ T7897]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  506.509566][ T7897] RIP: 0033:0x7fb700fd30b9
[  506.514518][ T7897] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  506.534940][ T7897] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  506.543634][ T7897] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  506.551904][ T7897] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  506.560234][ T7897] RBP: 000000000007b4e0 R08: 0000000000000000 R09: 0000000000000006
[  506.568650][ T7897] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  506.576925][ T7897] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  506.585145][ T7897]  </TASK>
[  506.596838][ T7897] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  506.657888][ T7897] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  506.667557][ T7897] CPU: 1 PID: 7897 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  506.677841][ T7897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  506.688188][ T7897] Call Trace:
[  506.691499][ T7897]  <TASK>
[  506.694471][ T7897]  dump_stack_lvl+0x125/0x1b0
[  506.699284][ T7897]  sysfs_warn_dup+0x7f/0xa0
[  506.703846][ T7897]  sysfs_create_dir_ns+0x249/0x2b0
[  506.709115][ T7897]  ? sysfs_create_mount_point+0xb0/0xb0
[  506.714706][ T7897]  ? spin_bug+0x1d0/0x1d0
[  506.719244][ T7897]  ? net_namespace+0x12/0x40
[  506.724131][ T7897]  ? device_namespace+0x8d/0xc0
[  506.729031][ T7897]  kobject_add_internal+0x2c8/0x970
[  506.734374][ T7897]  kobject_add+0x16f/0x240
[  506.738920][ T7897]  ? kset_create_and_add+0x190/0x190
[  506.744426][ T7897]  ? do_raw_spin_unlock+0x173/0x230
[  506.749677][ T7897]  ? kobject_put+0xbe/0x440
[  506.754243][ T7897]  ? device_add+0xc35/0x1aa0
[  506.759150][ T7897]  device_add+0x289/0x1aa0
[  506.763801][ T7897]  ? device_initialize+0x510/0x510
[  506.769300][ T7897]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  506.776462][ T7897]  ? __init_waitqueue_head+0xca/0x150
[  506.781969][ T7897]  netdev_register_kobject+0x183/0x3f0
[  506.787588][ T7897]  register_netdevice+0xbe6/0x14b0
[  506.792890][ T7897]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  506.798927][ T7897]  ? validate_linkmsg+0x6fc/0x9c0
[  506.804001][ T7897]  br_dev_newlink+0x27/0x110
[  506.808635][ T7897]  ? br_changelink+0x1760/0x1760
[  506.813703][ T7897]  __rtnl_newlink+0x1173/0x1930
[  506.819590][ T7897]  ? rtnl_link_unregister+0x260/0x260
[  506.825046][ T7897]  rtnl_newlink+0x67/0xa0
[  506.829419][ T7897]  ? __rtnl_newlink+0x1930/0x1930
[  506.834576][ T7897]  rtnetlink_rcv_msg+0x3c7/0xe00
[  506.840161][ T7897]  ? rtnl_fill_vf+0x4a0/0x4a0
[  506.844891][ T7897]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  506.851622][ T7897]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  506.857677][ T7897]  netlink_rcv_skb+0x16b/0x440
[  506.862670][ T7897]  ? rtnl_fill_vf+0x4a0/0x4a0
[  506.867388][ T7897]  ? netlink_ack+0x1380/0x1380
[  506.872201][ T7897]  ? lock_sync+0x190/0x190
[  506.876702][ T7897]  ? netlink_deliver_tap+0x1a0/0xd00
[  506.882039][ T7897]  ? _copy_from_iter+0x2c1/0x10f0
[  506.887144][ T7897]  netlink_unicast+0x53b/0x810
[  506.891967][ T7897]  ? netlink_attachskb+0x880/0x880
[  506.897137][ T7897]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  506.903349][ T7897]  ? __phys_addr_symbol+0x30/0x70
[  506.908768][ T7897]  ? __check_object_size+0x323/0x730
[  506.914454][ T7897]  netlink_sendmsg+0x93c/0xe40
[  506.919366][ T7897]  ? netlink_unicast+0x810/0x810
[  506.924875][ T7897]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  506.930309][ T7897]  ? netlink_unicast+0x810/0x810
[  506.935322][ T7897]  __sock_sendmsg+0xd5/0x180
[  506.940217][ T7897]  ____sys_sendmsg+0x6ac/0x940
[  506.945461][ T7897]  ? copy_msghdr_from_user+0x10b/0x160
[  506.951236][ T7897]  ? kernel_sendmsg+0x50/0x50
[  506.956094][ T7897]  ___sys_sendmsg+0x135/0x1d0
[  506.961010][ T7897]  ? do_recvmmsg+0x740/0x740
[  506.965865][ T7897]  ? find_held_lock+0x2d/0x110
[  506.970765][ T7897]  ? preempt_count_sub+0x160/0x160
[  506.975975][ T7897]  ? __fget_light+0x1fc/0x260
[  506.980842][ T7897]  __sys_sendmsg+0x117/0x1e0
[  506.985643][ T7897]  ? __sys_sendmsg_sock+0x30/0x30
[  506.990768][ T7897]  ? syscall_enter_from_user_mode+0x7f/0x120
[  506.996989][ T7897]  do_syscall_64+0x40/0x110
[  507.001532][ T7897]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  507.007632][ T7897] RIP: 0033:0x7fb700fd30b9
[  507.012090][ T7897] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  507.031818][ T7897] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  507.040436][ T7897] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  507.048685][ T7897] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  507.056937][ T7897] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  507.065081][ T7897] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  507.073320][ T7897] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  507.081715][ T7897]  </TASK>
[  507.091795][ T7897] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  507.150959][ T7912] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  507.161753][ T7912] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  507.171861][ T7912] CPU: 0 PID: 7912 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  507.182090][ T7912] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  507.192261][ T7912] Call Trace:
[  507.195572][ T7912]  <TASK>
[  507.198599][ T7912]  dump_stack_lvl+0x125/0x1b0
[  507.203318][ T7912]  sysfs_warn_dup+0x7f/0xa0
[  507.207881][ T7912]  sysfs_create_dir_ns+0x249/0x2b0
[  507.213036][ T7912]  ? sysfs_create_mount_point+0xb0/0xb0
[  507.218731][ T7912]  ? spin_bug+0x1d0/0x1d0
[  507.223185][ T7912]  ? net_namespace+0x12/0x40
[  507.227900][ T7912]  ? device_namespace+0x8d/0xc0
[  507.232776][ T7912]  kobject_add_internal+0x2c8/0x970
[  507.238172][ T7912]  kobject_add+0x16f/0x240
[  507.243005][ T7912]  ? kset_create_and_add+0x190/0x190
[  507.248423][ T7912]  ? do_raw_spin_unlock+0x173/0x230
[  507.253895][ T7912]  ? kobject_put+0xbe/0x440
[  507.258417][ T7912]  ? device_add+0xc35/0x1aa0
[  507.263106][ T7912]  device_add+0x289/0x1aa0
[  507.267652][ T7912]  ? device_initialize+0x510/0x510
[  507.273844][ T7912]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  507.280898][ T7912]  ? __init_waitqueue_head+0xca/0x150
[  507.286375][ T7912]  netdev_register_kobject+0x183/0x3f0
[  507.291959][ T7912]  register_netdevice+0xbe6/0x14b0
[  507.297176][ T7912]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  507.303279][ T7912]  ? validate_linkmsg+0x6fc/0x9c0
[  507.308515][ T7912]  br_dev_newlink+0x27/0x110
[  507.313302][ T7912]  ? br_changelink+0x1760/0x1760
[  507.318596][ T7912]  __rtnl_newlink+0x1173/0x1930
[  507.323730][ T7912]  ? rtnl_link_unregister+0x260/0x260
[  507.329222][ T7912]  rtnl_newlink+0x67/0xa0
[  507.333920][ T7912]  ? __rtnl_newlink+0x1930/0x1930
[  507.339239][ T7912]  rtnetlink_rcv_msg+0x3c7/0xe00
[  507.344797][ T7912]  ? rtnl_fill_vf+0x4a0/0x4a0
[  507.349567][ T7912]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  507.356003][ T7912]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  507.362187][ T7912]  netlink_rcv_skb+0x16b/0x440
[  507.366967][ T7912]  ? rtnl_fill_vf+0x4a0/0x4a0
[  507.371655][ T7912]  ? netlink_ack+0x1380/0x1380
[  507.376453][ T7912]  ? lock_sync+0x190/0x190
[  507.381101][ T7912]  ? netlink_deliver_tap+0x1a0/0xd00
[  507.386509][ T7912]  ? _copy_from_iter+0x2c1/0x10f0
[  507.391564][ T7912]  netlink_unicast+0x53b/0x810
[  507.396594][ T7912]  ? netlink_attachskb+0x880/0x880
[  507.401858][ T7912]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  507.407851][ T7912]  ? __phys_addr_symbol+0x30/0x70
[  507.412987][ T7912]  ? __check_object_size+0x323/0x730
[  507.419086][ T7912]  netlink_sendmsg+0x93c/0xe40
[  507.423894][ T7912]  ? netlink_unicast+0x810/0x810
[  507.428852][ T7912]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  507.434155][ T7912]  ? netlink_unicast+0x810/0x810
[  507.439284][ T7912]  __sock_sendmsg+0xd5/0x180
[  507.444175][ T7912]  ____sys_sendmsg+0x6ac/0x940
[  507.449071][ T7912]  ? copy_msghdr_from_user+0x10b/0x160
[  507.454921][ T7912]  ? kernel_sendmsg+0x50/0x50
[  507.459625][ T7912]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  507.465629][ T7912]  ___sys_sendmsg+0x135/0x1d0
[  507.470322][ T7912]  ? do_recvmmsg+0x740/0x740
[  507.475189][ T7912]  ? find_held_lock+0x2d/0x110
[  507.480144][ T7912]  ? preempt_count_sub+0x160/0x160
[  507.485456][ T7912]  ? __fget_light+0x1fc/0x260
[  507.490235][ T7912]  __sys_sendmsg+0x117/0x1e0
[  507.494922][ T7912]  ? __sys_sendmsg_sock+0x30/0x30
[  507.500325][ T7912]  ? syscall_enter_from_user_mode+0x7f/0x120
[  507.506493][ T7912]  do_syscall_64+0x40/0x110
[  507.512914][ T7912]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  507.518907][ T7912] RIP: 0033:0x7fb700fd30b9
[  507.523326][ T7912] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  507.543285][ T7912] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  507.551963][ T7912] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  507.559942][ T7912] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  507.568265][ T7912] RBP: 000000000007b8e8 R08: 0000000000000000 R09: 0000000000000006
[  507.576323][ T7912] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  507.584552][ T7912] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  507.592546][ T7912]  </TASK>
[  507.603182][ T7912] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  507.656696][ T7912] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  507.666144][ T7912] CPU: 0 PID: 7912 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  507.676246][ T7912] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  507.686586][ T7912] Call Trace:
[  507.690075][ T7912]  <TASK>
[  507.693028][ T7912]  dump_stack_lvl+0x125/0x1b0
[  507.697829][ T7912]  sysfs_warn_dup+0x7f/0xa0
[  507.702370][ T7912]  sysfs_create_dir_ns+0x249/0x2b0
[  507.707706][ T7912]  ? sysfs_create_mount_point+0xb0/0xb0
[  507.713382][ T7912]  ? spin_bug+0x1d0/0x1d0
[  507.717779][ T7912]  ? net_namespace+0x12/0x40
[  507.722416][ T7912]  ? device_namespace+0x8d/0xc0
[  507.727319][ T7912]  kobject_add_internal+0x2c8/0x970
[  507.732665][ T7912]  kobject_add+0x16f/0x240
[  507.737231][ T7912]  ? kset_create_and_add+0x190/0x190
[  507.742567][ T7912]  ? do_raw_spin_unlock+0x173/0x230
[  507.747814][ T7912]  ? kobject_put+0xbe/0x440
[  507.752540][ T7912]  ? device_add+0xc35/0x1aa0
[  507.757176][ T7912]  device_add+0x289/0x1aa0
[  507.761897][ T7912]  ? device_initialize+0x510/0x510
[  507.767224][ T7912]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  507.774312][ T7912]  ? __init_waitqueue_head+0xca/0x150
[  507.779833][ T7912]  netdev_register_kobject+0x183/0x3f0
[  507.785522][ T7912]  register_netdevice+0xbe6/0x14b0
[  507.791311][ T7912]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  507.797348][ T7912]  ? validate_linkmsg+0x6fc/0x9c0
[  507.802554][ T7912]  br_dev_newlink+0x27/0x110
[  507.807341][ T7912]  ? br_changelink+0x1760/0x1760
[  507.812946][ T7912]  __rtnl_newlink+0x1173/0x1930
[  507.817957][ T7912]  ? rtnl_link_unregister+0x260/0x260
[  507.823417][ T7912]  rtnl_newlink+0x67/0xa0
[  507.827797][ T7912]  ? __rtnl_newlink+0x1930/0x1930
[  507.833120][ T7912]  rtnetlink_rcv_msg+0x3c7/0xe00
[  507.838707][ T7912]  ? rtnl_fill_vf+0x4a0/0x4a0
[  507.843699][ T7912]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  507.850439][ T7912]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  507.856661][ T7912]  netlink_rcv_skb+0x16b/0x440
[  507.861655][ T7912]  ? rtnl_fill_vf+0x4a0/0x4a0
[  507.866388][ T7912]  ? netlink_ack+0x1380/0x1380
[  507.871365][ T7912]  ? lock_sync+0x190/0x190
[  507.876194][ T7912]  ? netlink_deliver_tap+0x1a0/0xd00
[  507.881611][ T7912]  ? _copy_from_iter+0x2c1/0x10f0
[  507.886777][ T7912]  netlink_unicast+0x53b/0x810
[  507.891852][ T7912]  ? netlink_attachskb+0x880/0x880
[  507.897249][ T7912]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  507.903530][ T7912]  ? __phys_addr_symbol+0x30/0x70
[  507.909237][ T7912]  ? __check_object_size+0x323/0x730
[  507.914760][ T7912]  netlink_sendmsg+0x93c/0xe40
[  507.920907][ T7912]  ? netlink_unicast+0x810/0x810
[  507.925905][ T7912]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  507.931240][ T7912]  ? netlink_unicast+0x810/0x810
[  507.936401][ T7912]  __sock_sendmsg+0xd5/0x180
[  507.941345][ T7912]  ____sys_sendmsg+0x6ac/0x940
[  507.946246][ T7912]  ? copy_msghdr_from_user+0x10b/0x160
[  507.952130][ T7912]  ? kernel_sendmsg+0x50/0x50
[  507.956950][ T7912]  ? hlock_class+0x4e/0x130
[  507.962212][ T7912]  ? __lock_acquire+0x14e0/0x3b10
[  507.967487][ T7912]  ___sys_sendmsg+0x135/0x1d0
[  507.972441][ T7912]  ? do_recvmmsg+0x740/0x740
[  507.977209][ T7912]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  507.983196][ T7912]  ? find_held_lock+0x2d/0x110
[  507.987974][ T7912]  ? __fget_light+0x1fc/0x260
[  507.992821][ T7912]  __sys_sendmsg+0x117/0x1e0
[  507.997496][ T7912]  ? __sys_sendmsg_sock+0x30/0x30
[  508.005515][ T7912]  ? xfd_validate_state+0x5d/0x180
[  508.010720][ T7912]  ? syscall_enter_from_user_mode+0x7f/0x120
[  508.017600][ T7912]  do_syscall_64+0x40/0x110
[  508.022382][ T7912]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  508.028394][ T7912] RIP: 0033:0x7fb700fd30b9
[  508.033178][ T7912] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  508.053499][ T7912] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  508.062544][ T7912] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  508.071083][ T7912] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  508.080100][ T7912] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  508.088763][ T7912] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  508.097079][ T7912] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  508.105510][ T7912]  </TASK>
[  508.116516][ T7912] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  508.200510][ T7926] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  508.211386][ T7926] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  508.220982][ T7926] CPU: 0 PID: 7926 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  508.231418][ T7926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  508.241995][ T7926] Call Trace:
[  508.245374][ T7926]  <TASK>
[  508.248498][ T7926]  dump_stack_lvl+0x125/0x1b0
[  508.253622][ T7926]  sysfs_warn_dup+0x7f/0xa0
[  508.258135][ T7926]  sysfs_create_dir_ns+0x249/0x2b0
[  508.263600][ T7926]  ? sysfs_create_mount_point+0xb0/0xb0
[  508.269184][ T7926]  ? spin_bug+0x1d0/0x1d0
[  508.273523][ T7926]  ? net_namespace+0x12/0x40
[  508.278324][ T7926]  ? device_namespace+0x8d/0xc0
[  508.283373][ T7926]  kobject_add_internal+0x2c8/0x970
[  508.288879][ T7926]  kobject_add+0x16f/0x240
[  508.293569][ T7926]  ? kset_create_and_add+0x190/0x190
[  508.299043][ T7926]  ? do_raw_spin_unlock+0x173/0x230
[  508.304441][ T7926]  ? kobject_put+0xbe/0x440
[  508.309074][ T7926]  ? device_add+0xc35/0x1aa0
[  508.313778][ T7926]  device_add+0x289/0x1aa0
[  508.318306][ T7926]  ? device_initialize+0x510/0x510
[  508.324560][ T7926]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  508.331694][ T7926]  ? __init_waitqueue_head+0xca/0x150
[  508.337180][ T7926]  netdev_register_kobject+0x183/0x3f0
[  508.342925][ T7926]  register_netdevice+0xbe6/0x14b0
[  508.348252][ T7926]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  508.354383][ T7926]  ? validate_linkmsg+0x6fc/0x9c0
[  508.360027][ T7926]  br_dev_newlink+0x27/0x110
[  508.364649][ T7926]  ? br_changelink+0x1760/0x1760
[  508.369594][ T7926]  __rtnl_newlink+0x1173/0x1930
[  508.374732][ T7926]  ? rtnl_link_unregister+0x260/0x260
[  508.380147][ T7926]  rtnl_newlink+0x67/0xa0
[  508.384481][ T7926]  ? __rtnl_newlink+0x1930/0x1930
[  508.390229][ T7926]  rtnetlink_rcv_msg+0x3c7/0xe00
[  508.395269][ T7926]  ? rtnl_fill_vf+0x4a0/0x4a0
[  508.399951][ T7926]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  508.406379][ T7926]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  508.412468][ T7926]  netlink_rcv_skb+0x16b/0x440
[  508.417252][ T7926]  ? rtnl_fill_vf+0x4a0/0x4a0
[  508.422024][ T7926]  ? netlink_ack+0x1380/0x1380
[  508.426971][ T7926]  ? lock_sync+0x190/0x190
[  508.431432][ T7926]  ? netlink_deliver_tap+0x1a0/0xd00
[  508.436810][ T7926]  ? _copy_from_iter+0x2c1/0x10f0
[  508.441945][ T7926]  netlink_unicast+0x53b/0x810
[  508.446723][ T7926]  ? netlink_attachskb+0x880/0x880
[  508.452027][ T7926]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  508.458207][ T7926]  ? __phys_addr_symbol+0x30/0x70
[  508.463417][ T7926]  ? __check_object_size+0x323/0x730
[  508.468885][ T7926]  netlink_sendmsg+0x93c/0xe40
[  508.473865][ T7926]  ? netlink_unicast+0x810/0x810
[  508.478923][ T7926]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  508.484314][ T7926]  ? netlink_unicast+0x810/0x810
[  508.489384][ T7926]  __sock_sendmsg+0xd5/0x180
[  508.494036][ T7926]  ____sys_sendmsg+0x6ac/0x940
[  508.499329][ T7926]  ? copy_msghdr_from_user+0x10b/0x160
[  508.505078][ T7926]  ? kernel_sendmsg+0x50/0x50
[  508.510042][ T7926]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  508.516214][ T7926]  ___sys_sendmsg+0x135/0x1d0
[  508.521077][ T7926]  ? do_recvmmsg+0x740/0x740
[  508.525849][ T7926]  ? find_held_lock+0x2d/0x110
[  508.530800][ T7926]  ? preempt_count_sub+0x160/0x160
[  508.536020][ T7926]  ? __fget_light+0x1fc/0x260
[  508.541311][ T7926]  __sys_sendmsg+0x117/0x1e0
[  508.545912][ T7926]  ? __sys_sendmsg_sock+0x30/0x30
[  508.550960][ T7926]  ? syscall_enter_from_user_mode+0x7f/0x120
[  508.556955][ T7926]  do_syscall_64+0x40/0x110
[  508.561467][ T7926]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  508.567553][ T7926] RIP: 0033:0x7fb700fd30b9
[  508.572182][ T7926] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  508.592314][ T7926] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  508.601270][ T7926] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  508.609254][ T7926] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  508.617932][ T7926] RBP: 000000000007bce2 R08: 0000000000000000 R09: 0000000000000006
[  508.626443][ T7926] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  508.635133][ T7926] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  508.643214][ T7926]  </TASK>
[  508.661456][ T7926] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  508.716316][ T7926] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  508.726086][ T7926] CPU: 1 PID: 7926 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  508.736534][ T7926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  508.746969][ T7926] Call Trace:
[  508.750367][ T7926]  <TASK>
[  508.753357][ T7926]  dump_stack_lvl+0x125/0x1b0
[  508.758060][ T7926]  sysfs_warn_dup+0x7f/0xa0
[  508.762576][ T7926]  sysfs_create_dir_ns+0x249/0x2b0
[  508.769184][ T7926]  ? sysfs_create_mount_point+0xb0/0xb0
[  508.775138][ T7926]  ? spin_bug+0x1d0/0x1d0
[  508.779695][ T7926]  ? net_namespace+0x12/0x40
[  508.784325][ T7926]  ? device_namespace+0x8d/0xc0
[  508.789293][ T7926]  kobject_add_internal+0x2c8/0x970
[  508.794699][ T7926]  kobject_add+0x16f/0x240
[  508.799222][ T7926]  ? kset_create_and_add+0x190/0x190
[  508.804633][ T7926]  ? do_raw_spin_unlock+0x173/0x230
[  508.810041][ T7926]  ? kobject_put+0xbe/0x440
[  508.814940][ T7926]  ? device_add+0xc35/0x1aa0
[  508.819823][ T7926]  device_add+0x289/0x1aa0
[  508.824883][ T7926]  ? device_initialize+0x510/0x510
[  508.830201][ T7926]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  508.837568][ T7926]  ? __init_waitqueue_head+0xca/0x150
[  508.843069][ T7926]  netdev_register_kobject+0x183/0x3f0
[  508.848549][ T7926]  register_netdevice+0xbe6/0x14b0
[  508.853764][ T7926]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  508.859808][ T7926]  ? validate_linkmsg+0x6fc/0x9c0
[  508.865140][ T7926]  br_dev_newlink+0x27/0x110
[  508.869915][ T7926]  ? br_changelink+0x1760/0x1760
[  508.874875][ T7926]  __rtnl_newlink+0x1173/0x1930
[  508.879858][ T7926]  ? rtnl_link_unregister+0x260/0x260
[  508.885525][ T7926]  rtnl_newlink+0x67/0xa0
[  508.890238][ T7926]  ? __rtnl_newlink+0x1930/0x1930
[  508.895291][ T7926]  rtnetlink_rcv_msg+0x3c7/0xe00
[  508.900449][ T7926]  ? rtnl_fill_vf+0x4a0/0x4a0
[  508.905143][ T7926]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  508.911235][ T7926]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  508.917413][ T7926]  netlink_rcv_skb+0x16b/0x440
[  508.922191][ T7926]  ? rtnl_fill_vf+0x4a0/0x4a0
[  508.926976][ T7926]  ? netlink_ack+0x1380/0x1380
[  508.931842][ T7926]  ? lock_sync+0x190/0x190
[  508.936412][ T7926]  ? netlink_deliver_tap+0x1a0/0xd00
[  508.941893][ T7926]  ? _copy_from_iter+0x2c1/0x10f0
[  508.947108][ T7926]  netlink_unicast+0x53b/0x810
[  508.951995][ T7926]  ? netlink_attachskb+0x880/0x880
[  508.957413][ T7926]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  508.963761][ T7926]  ? __phys_addr_symbol+0x30/0x70
[  508.969058][ T7926]  ? __check_object_size+0x323/0x730
[  508.974629][ T7926]  netlink_sendmsg+0x93c/0xe40
[  508.979682][ T7926]  ? netlink_unicast+0x810/0x810
[  508.984906][ T7926]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  508.990201][ T7926]  ? netlink_unicast+0x810/0x810
[  508.995254][ T7926]  __sock_sendmsg+0xd5/0x180
[  508.999960][ T7926]  ____sys_sendmsg+0x6ac/0x940
[  509.004831][ T7926]  ? copy_msghdr_from_user+0x10b/0x160
[  509.010588][ T7926]  ? kernel_sendmsg+0x50/0x50
[  509.015304][ T7926]  ___sys_sendmsg+0x135/0x1d0
[  509.020043][ T7926]  ? do_recvmmsg+0x740/0x740
[  509.024853][ T7926]  ? find_held_lock+0x2d/0x110
[  509.029662][ T7926]  ? preempt_count_sub+0x160/0x160
[  509.034814][ T7926]  ? __fget_light+0x1fc/0x260
[  509.039682][ T7926]  __sys_sendmsg+0x117/0x1e0
[  509.044372][ T7926]  ? __sys_sendmsg_sock+0x30/0x30
[  509.049422][ T7926]  ? syscall_enter_from_user_mode+0x7f/0x120
[  509.055768][ T7926]  do_syscall_64+0x40/0x110
[  509.060284][ T7926]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  509.066201][ T7926] RIP: 0033:0x7fb700fd30b9
[  509.070716][ T7926] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  509.091133][ T7926] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  509.099670][ T7926] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  509.107835][ T7926] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  509.116245][ T7926] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  509.124695][ T7926] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  509.132891][ T7926] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  509.140988][ T7926]  </TASK>
[  509.160712][ T7926] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  509.231367][ T7935] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  509.244723][ T7935] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  509.254564][ T7935] CPU: 1 PID: 7935 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  509.265020][ T7935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  509.275204][ T7935] Call Trace:
[  509.278690][ T7935]  <TASK>
[  509.281639][ T7935]  dump_stack_lvl+0x125/0x1b0
[  509.286392][ T7935]  sysfs_warn_dup+0x7f/0xa0
[  509.291106][ T7935]  sysfs_create_dir_ns+0x249/0x2b0
[  509.296320][ T7935]  ? sysfs_create_mount_point+0xb0/0xb0
[  509.301969][ T7935]  ? spin_bug+0x1d0/0x1d0
[  509.306419][ T7935]  ? net_namespace+0x12/0x40
[  509.311045][ T7935]  ? device_namespace+0x8d/0xc0
[  509.316229][ T7935]  kobject_add_internal+0x2c8/0x970
[  509.322054][ T7935]  kobject_add+0x16f/0x240
[  509.326638][ T7935]  ? kset_create_and_add+0x190/0x190
[  509.332197][ T7935]  ? do_raw_spin_unlock+0x173/0x230
[  509.338444][ T7935]  ? kobject_put+0xbe/0x440
[  509.343054][ T7935]  ? device_add+0xc35/0x1aa0
[  509.347868][ T7935]  device_add+0x289/0x1aa0
[  509.352731][ T7935]  ? device_initialize+0x510/0x510
[  509.358117][ T7935]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  509.365759][ T7935]  ? __init_waitqueue_head+0xca/0x150
[  509.371322][ T7935]  netdev_register_kobject+0x183/0x3f0
[  509.376897][ T7935]  register_netdevice+0xbe6/0x14b0
[  509.382040][ T7935]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  509.387952][ T7935]  ? validate_linkmsg+0x6fc/0x9c0
[  509.393167][ T7935]  br_dev_newlink+0x27/0x110
[  509.397765][ T7935]  ? br_changelink+0x1760/0x1760
[  509.402734][ T7935]  __rtnl_newlink+0x1173/0x1930
[  509.407626][ T7935]  ? rtnl_link_unregister+0x260/0x260
[  509.413120][ T7935]  rtnl_newlink+0x67/0xa0
[  509.417543][ T7935]  ? __rtnl_newlink+0x1930/0x1930
[  509.422673][ T7935]  rtnetlink_rcv_msg+0x3c7/0xe00
[  509.427717][ T7935]  ? rtnl_fill_vf+0x4a0/0x4a0
[  509.432709][ T7935]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  509.439145][ T7935]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  509.445511][ T7935]  netlink_rcv_skb+0x16b/0x440
[  509.450298][ T7935]  ? rtnl_fill_vf+0x4a0/0x4a0
[  509.455081][ T7935]  ? netlink_ack+0x1380/0x1380
[  509.460109][ T7935]  ? lock_sync+0x190/0x190
[  509.464904][ T7935]  ? netlink_deliver_tap+0x1a0/0xd00
[  509.470201][ T7935]  ? _copy_from_iter+0x2c1/0x10f0
[  509.475243][ T7935]  netlink_unicast+0x53b/0x810
[  509.480031][ T7935]  ? netlink_attachskb+0x880/0x880
[  509.485152][ T7935]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  509.491152][ T7935]  ? __phys_addr_symbol+0x30/0x70
[  509.496445][ T7935]  ? __check_object_size+0x323/0x730
[  509.501830][ T7935]  netlink_sendmsg+0x93c/0xe40
[  509.506709][ T7935]  ? netlink_unicast+0x810/0x810
[  509.511848][ T7935]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  509.517486][ T7935]  ? netlink_unicast+0x810/0x810
[  509.522572][ T7935]  __sock_sendmsg+0xd5/0x180
[  509.527278][ T7935]  ____sys_sendmsg+0x6ac/0x940
[  509.532227][ T7935]  ? copy_msghdr_from_user+0x10b/0x160
[  509.537877][ T7935]  ? kernel_sendmsg+0x50/0x50
[  509.542855][ T7935]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  509.549427][ T7935]  ___sys_sendmsg+0x135/0x1d0
[  509.554903][ T7935]  ? do_recvmmsg+0x740/0x740
[  509.560290][ T7935]  ? find_held_lock+0x2d/0x110
[  509.565437][ T7935]  ? preempt_count_sub+0x160/0x160
[  509.570836][ T7935]  ? __fget_light+0x1fc/0x260
[  509.575519][ T7935]  __sys_sendmsg+0x117/0x1e0
[  509.580150][ T7935]  ? __sys_sendmsg_sock+0x30/0x30
[  509.585267][ T7935]  ? xfd_validate_state+0x5d/0x180
[  509.590932][ T7935]  ? syscall_enter_from_user_mode+0x7f/0x120
[  509.597363][ T7935]  do_syscall_64+0x40/0x110
[  509.601873][ T7935]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  509.608143][ T7935] RIP: 0033:0x7fb700fd30b9
[  509.613023][ T7935] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  509.633596][ T7935] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  509.642190][ T7935] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  509.651031][ T7935] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  509.659096][ T7935] RBP: 000000000007c0fb R08: 0000000000000000 R09: 0000000000000006
[  509.667697][ T7935] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  509.676028][ T7935] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  509.684670][ T7935]  </TASK>
[  509.694449][ T7935] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  509.766002][ T7935] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  509.777003][ T7935] CPU: 0 PID: 7935 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  509.787718][ T7935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  509.797992][ T7935] Call Trace:
[  509.801471][ T7935]  <TASK>
[  509.804437][ T7935]  dump_stack_lvl+0x125/0x1b0
[  509.809505][ T7935]  sysfs_warn_dup+0x7f/0xa0
[  509.814155][ T7935]  sysfs_create_dir_ns+0x249/0x2b0
[  509.820022][ T7935]  ? sysfs_create_mount_point+0xb0/0xb0
[  509.826141][ T7935]  ? spin_bug+0x1d0/0x1d0
[  509.830812][ T7935]  ? net_namespace+0x12/0x40
[  509.836492][ T7935]  ? device_namespace+0x8d/0xc0
[  509.842319][ T7935]  kobject_add_internal+0x2c8/0x970
[  509.848643][ T7935]  kobject_add+0x16f/0x240
[  509.853451][ T7935]  ? kset_create_and_add+0x190/0x190
[  509.859642][ T7935]  ? do_raw_spin_unlock+0x173/0x230
[  509.865043][ T7935]  ? kobject_put+0xbe/0x440
[  509.869640][ T7935]  ? device_add+0xc35/0x1aa0
[  509.874673][ T7935]  device_add+0x289/0x1aa0
[  509.879107][ T7935]  ? device_initialize+0x510/0x510
[  509.884425][ T7935]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  509.891304][ T7935]  ? __init_waitqueue_head+0xca/0x150
[  509.896710][ T7935]  netdev_register_kobject+0x183/0x3f0
[  509.902504][ T7935]  register_netdevice+0xbe6/0x14b0
[  509.907643][ T7935]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  509.913679][ T7935]  ? validate_linkmsg+0x6fc/0x9c0
[  509.919180][ T7935]  br_dev_newlink+0x27/0x110
[  509.923852][ T7935]  ? br_changelink+0x1760/0x1760
[  509.929184][ T7935]  __rtnl_newlink+0x1173/0x1930
[  509.934595][ T7935]  ? rtnl_link_unregister+0x260/0x260
[  509.940104][ T7935]  rtnl_newlink+0x67/0xa0
[  509.944648][ T7935]  ? __rtnl_newlink+0x1930/0x1930
[  509.949699][ T7935]  rtnetlink_rcv_msg+0x3c7/0xe00
[  509.955058][ T7935]  ? rtnl_fill_vf+0x4a0/0x4a0
[  509.960270][ T7935]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  509.966597][ T7935]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  509.973302][ T7935]  netlink_rcv_skb+0x16b/0x440
[  509.978189][ T7935]  ? rtnl_fill_vf+0x4a0/0x4a0
[  509.982978][ T7935]  ? netlink_ack+0x1380/0x1380
[  509.988047][ T7935]  ? lock_sync+0x190/0x190
[  509.992505][ T7935]  ? netlink_deliver_tap+0x1a0/0xd00
[  509.997893][ T7935]  ? _copy_from_iter+0x2c1/0x10f0
[  510.002950][ T7935]  netlink_unicast+0x53b/0x810
[  510.008093][ T7935]  ? netlink_attachskb+0x880/0x880
[  510.013624][ T7935]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  510.019644][ T7935]  ? __phys_addr_symbol+0x30/0x70
[  510.024877][ T7935]  ? __check_object_size+0x323/0x730
[  510.030275][ T7935]  netlink_sendmsg+0x93c/0xe40
[  510.035252][ T7935]  ? netlink_unicast+0x810/0x810
[  510.040219][ T7935]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  510.045636][ T7935]  ? netlink_unicast+0x810/0x810
[  510.050711][ T7935]  __sock_sendmsg+0xd5/0x180
[  510.055324][ T7935]  ____sys_sendmsg+0x6ac/0x940
[  510.060645][ T7935]  ? copy_msghdr_from_user+0x10b/0x160
[  510.066135][ T7935]  ? kernel_sendmsg+0x50/0x50
[  510.070819][ T7935]  ? hlock_class+0x4e/0x130
[  510.075347][ T7935]  ? __lock_acquire+0x14e0/0x3b10
[  510.080529][ T7935]  ___sys_sendmsg+0x135/0x1d0
[  510.085238][ T7935]  ? do_recvmmsg+0x740/0x740
[  510.090102][ T7935]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  510.096182][ T7935]  ? find_held_lock+0x2d/0x110
[  510.101057][ T7935]  ? __fget_light+0x1fc/0x260
[  510.106609][ T7935]  __sys_sendmsg+0x117/0x1e0
[  510.111215][ T7935]  ? __sys_sendmsg_sock+0x30/0x30
[  510.116538][ T7935]  ? __do_sys_rseq+0x750/0x750
[  510.121321][ T7935]  ? syscall_enter_from_user_mode+0x7f/0x120
[  510.127667][ T7935]  do_syscall_64+0x40/0x110
[  510.132261][ T7935]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  510.138259][ T7935] RIP: 0033:0x7fb700fd30b9
[  510.143970][ T7935] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  510.164629][ T7935] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  510.173144][ T7935] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  510.181117][ T7935] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  510.189114][ T7935] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  510.197963][ T7935] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  510.206317][ T7935] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  510.214409][ T7935]  </TASK>
[  510.220031][ T7935] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  510.303309][ T7943] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  510.314858][ T7943] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  510.324508][ T7943] CPU: 0 PID: 7943 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  510.334885][ T7943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  510.345300][ T7943] Call Trace:
[  510.348847][ T7943]  <TASK>
[  510.351865][ T7943]  dump_stack_lvl+0x125/0x1b0
[  510.356774][ T7943]  sysfs_warn_dup+0x7f/0xa0
[  510.361292][ T7943]  sysfs_create_dir_ns+0x249/0x2b0
[  510.366595][ T7943]  ? sysfs_create_mount_point+0xb0/0xb0
[  510.372276][ T7943]  ? spin_bug+0x1d0/0x1d0
[  510.376965][ T7943]  ? net_namespace+0x12/0x40
[  510.382275][ T7943]  ? device_namespace+0x8d/0xc0
[  510.387587][ T7943]  kobject_add_internal+0x2c8/0x970
[  510.392815][ T7943]  kobject_add+0x16f/0x240
[  510.397255][ T7943]  ? kset_create_and_add+0x190/0x190
[  510.402735][ T7943]  ? do_raw_spin_unlock+0x173/0x230
[  510.408288][ T7943]  ? kobject_put+0xbe/0x440
[  510.412820][ T7943]  ? device_add+0xc35/0x1aa0
[  510.417725][ T7943]  device_add+0x289/0x1aa0
[  510.422412][ T7943]  ? device_initialize+0x510/0x510
[  510.427789][ T7943]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  510.434735][ T7943]  ? __init_waitqueue_head+0xca/0x150
[  510.440388][ T7943]  netdev_register_kobject+0x183/0x3f0
[  510.447428][ T7943]  register_netdevice+0xbe6/0x14b0
[  510.452554][ T7943]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  510.459283][ T7943]  ? validate_linkmsg+0x6fc/0x9c0
[  510.464773][ T7943]  br_dev_newlink+0x27/0x110
[  510.469465][ T7943]  ? br_changelink+0x1760/0x1760
[  510.474496][ T7943]  __rtnl_newlink+0x1173/0x1930
[  510.479453][ T7943]  ? rtnl_link_unregister+0x260/0x260
[  510.485123][ T7943]  rtnl_newlink+0x67/0xa0
[  510.489643][ T7943]  ? __rtnl_newlink+0x1930/0x1930
[  510.494684][ T7943]  rtnetlink_rcv_msg+0x3c7/0xe00
[  510.499692][ T7943]  ? rtnl_fill_vf+0x4a0/0x4a0
[  510.504660][ T7943]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  510.510664][ T7943]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  510.516755][ T7943]  netlink_rcv_skb+0x16b/0x440
[  510.522230][ T7943]  ? rtnl_fill_vf+0x4a0/0x4a0
[  510.527002][ T7943]  ? netlink_ack+0x1380/0x1380
[  510.531869][ T7943]  ? lock_sync+0x190/0x190
[  510.537073][ T7943]  ? netlink_deliver_tap+0x1a0/0xd00
[  510.542448][ T7943]  ? _copy_from_iter+0x2c1/0x10f0
[  510.547691][ T7943]  netlink_unicast+0x53b/0x810
[  510.552843][ T7943]  ? netlink_attachskb+0x880/0x880
[  510.558439][ T7943]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  510.565060][ T7943]  ? __phys_addr_symbol+0x30/0x70
[  510.570184][ T7943]  ? __check_object_size+0x323/0x730
[  510.575582][ T7943]  netlink_sendmsg+0x93c/0xe40
[  510.580450][ T7943]  ? netlink_unicast+0x810/0x810
[  510.585412][ T7943]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  510.591491][ T7943]  ? netlink_unicast+0x810/0x810
[  510.596438][ T7943]  __sock_sendmsg+0xd5/0x180
[  510.601035][ T7943]  ____sys_sendmsg+0x6ac/0x940
[  510.606608][ T7943]  ? copy_msghdr_from_user+0x10b/0x160
[  510.612163][ T7943]  ? kernel_sendmsg+0x50/0x50
[  510.616945][ T7943]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  510.623029][ T7943]  ___sys_sendmsg+0x135/0x1d0
[  510.627980][ T7943]  ? do_recvmmsg+0x740/0x740
[  510.632621][ T7943]  ? find_held_lock+0x2d/0x110
[  510.637409][ T7943]  ? preempt_count_sub+0x160/0x160
[  510.642558][ T7943]  ? __fget_light+0x1fc/0x260
[  510.647243][ T7943]  __sys_sendmsg+0x117/0x1e0
[  510.652224][ T7943]  ? __sys_sendmsg_sock+0x30/0x30
[  510.657256][ T7943]  ? xfd_validate_state+0x5d/0x180
[  510.662515][ T7943]  ? syscall_enter_from_user_mode+0x7f/0x120
[  510.668616][ T7943]  do_syscall_64+0x40/0x110
[  510.673311][ T7943]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  510.679221][ T7943] RIP: 0033:0x7fb700fd30b9
[  510.683654][ T7943] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  510.704413][ T7943] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  510.712925][ T7943] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  510.721249][ T7943] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  510.729504][ T7943] RBP: 000000000007c502 R08: 0000000000000000 R09: 0000000000000006
[  510.737578][ T7943] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  510.746092][ T7943] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  510.754354][ T7943]  </TASK>
[  510.761210][ T7943] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  510.839010][ T7943] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  510.849225][ T7943] CPU: 1 PID: 7943 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  510.859758][ T7943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  510.870191][ T7943] Call Trace:
[  510.873518][ T7943]  <TASK>
[  510.876741][ T7943]  dump_stack_lvl+0x125/0x1b0
[  510.881498][ T7943]  sysfs_warn_dup+0x7f/0xa0
[  510.886555][ T7943]  sysfs_create_dir_ns+0x249/0x2b0
[  510.891682][ T7943]  ? sysfs_create_mount_point+0xb0/0xb0
[  510.897234][ T7943]  ? spin_bug+0x1d0/0x1d0
[  510.901566][ T7943]  ? net_namespace+0x12/0x40
[  510.906166][ T7943]  ? device_namespace+0x8d/0xc0
[  510.911040][ T7943]  kobject_add_internal+0x2c8/0x970
[  510.916364][ T7943]  kobject_add+0x16f/0x240
[  510.920804][ T7943]  ? kset_create_and_add+0x190/0x190
[  510.926115][ T7943]  ? do_raw_spin_unlock+0x173/0x230
[  510.931503][ T7943]  ? kobject_put+0xbe/0x440
[  510.936115][ T7943]  ? device_add+0xc35/0x1aa0
[  510.940721][ T7943]  device_add+0x289/0x1aa0
[  510.945322][ T7943]  ? device_initialize+0x510/0x510
[  510.950448][ T7943]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  510.957678][ T7943]  ? __init_waitqueue_head+0xca/0x150
[  510.963100][ T7943]  netdev_register_kobject+0x183/0x3f0
[  510.968586][ T7943]  register_netdevice+0xbe6/0x14b0
[  510.973806][ T7943]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  510.979729][ T7943]  ? validate_linkmsg+0x6fc/0x9c0
[  510.984870][ T7943]  br_dev_newlink+0x27/0x110
[  510.989483][ T7943]  ? br_changelink+0x1760/0x1760
[  510.994430][ T7943]  __rtnl_newlink+0x1173/0x1930
[  510.999308][ T7943]  ? rtnl_link_unregister+0x260/0x260
[  511.004719][ T7943]  rtnl_newlink+0x67/0xa0
[  511.009145][ T7943]  ? __rtnl_newlink+0x1930/0x1930
[  511.014178][ T7943]  rtnetlink_rcv_msg+0x3c7/0xe00
[  511.019130][ T7943]  ? rtnl_fill_vf+0x4a0/0x4a0
[  511.023818][ T7943]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  511.029909][ T7943]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  511.036020][ T7943]  netlink_rcv_skb+0x16b/0x440
[  511.041685][ T7943]  ? rtnl_fill_vf+0x4a0/0x4a0
[  511.046398][ T7943]  ? netlink_ack+0x1380/0x1380
[  511.051192][ T7943]  ? lock_sync+0x190/0x190
[  511.055729][ T7943]  ? netlink_deliver_tap+0x1a0/0xd00
[  511.061021][ T7943]  ? _copy_from_iter+0x2c1/0x10f0
[  511.066585][ T7943]  netlink_unicast+0x53b/0x810
[  511.071451][ T7943]  ? netlink_attachskb+0x880/0x880
[  511.076659][ T7943]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  511.082649][ T7943]  ? __phys_addr_symbol+0x30/0x70
[  511.087692][ T7943]  ? __check_object_size+0x323/0x730
[  511.093160][ T7943]  netlink_sendmsg+0x93c/0xe40
[  511.098304][ T7943]  ? netlink_unicast+0x810/0x810
[  511.103350][ T7943]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  511.108931][ T7943]  ? netlink_unicast+0x810/0x810
[  511.113903][ T7943]  __sock_sendmsg+0xd5/0x180
[  511.118692][ T7943]  ____sys_sendmsg+0x6ac/0x940
[  511.123550][ T7943]  ? copy_msghdr_from_user+0x10b/0x160
[  511.129018][ T7943]  ? kernel_sendmsg+0x50/0x50
[  511.133966][ T7943]  ? hlock_class+0x4e/0x130
[  511.139009][ T7943]  ? __lock_acquire+0x14e0/0x3b10
[  511.144053][ T7943]  ___sys_sendmsg+0x135/0x1d0
[  511.148848][ T7943]  ? do_recvmmsg+0x740/0x740
[  511.153447][ T7943]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  511.160232][ T7943]  ? find_held_lock+0x2d/0x110
[  511.165124][ T7943]  ? __fget_light+0x1fc/0x260
[  511.169939][ T7943]  __sys_sendmsg+0x117/0x1e0
[  511.174807][ T7943]  ? __sys_sendmsg_sock+0x30/0x30
[  511.179843][ T7943]  ? __do_sys_rseq+0x750/0x750
[  511.184799][ T7943]  ? syscall_enter_from_user_mode+0x7f/0x120
[  511.190807][ T7943]  do_syscall_64+0x40/0x110
[  511.195837][ T7943]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  511.202267][ T7943] RIP: 0033:0x7fb700fd30b9
[  511.206854][ T7943] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  511.227084][ T7943] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  511.236613][ T7943] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  511.244855][ T7943] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  511.253265][ T7943] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  511.261359][ T7943] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  511.269497][ T7943] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  511.277752][ T7943]  </TASK>
[  511.284340][ T7943] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  511.363087][ T7953] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  511.374078][ T7953] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  511.383798][ T7953] CPU: 1 PID: 7953 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  511.394179][ T7953] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  511.404444][ T7953] Call Trace:
[  511.407795][ T7953]  <TASK>
[  511.410760][ T7953]  dump_stack_lvl+0x125/0x1b0
[  511.415510][ T7953]  sysfs_warn_dup+0x7f/0xa0
[  511.420264][ T7953]  sysfs_create_dir_ns+0x249/0x2b0
[  511.425607][ T7953]  ? sysfs_create_mount_point+0xb0/0xb0
[  511.431806][ T7953]  ? spin_bug+0x1d0/0x1d0
[  511.436371][ T7953]  ? net_namespace+0x12/0x40
[  511.441124][ T7953]  ? device_namespace+0x8d/0xc0
[  511.446026][ T7953]  kobject_add_internal+0x2c8/0x970
[  511.451277][ T7953]  kobject_add+0x16f/0x240
[  511.455914][ T7953]  ? kset_create_and_add+0x190/0x190
[  511.461419][ T7953]  ? do_raw_spin_unlock+0x173/0x230
[  511.466653][ T7953]  ? kobject_put+0xbe/0x440
[  511.471200][ T7953]  ? device_add+0xc35/0x1aa0
[  511.475850][ T7953]  device_add+0x289/0x1aa0
[  511.480334][ T7953]  ? device_initialize+0x510/0x510
[  511.485568][ T7953]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  511.492465][ T7953]  ? __init_waitqueue_head+0xca/0x150
[  511.497971][ T7953]  netdev_register_kobject+0x183/0x3f0
[  511.503742][ T7953]  register_netdevice+0xbe6/0x14b0
[  511.508998][ T7953]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  511.514947][ T7953]  ? validate_linkmsg+0x6fc/0x9c0
[  511.520205][ T7953]  br_dev_newlink+0x27/0x110
[  511.524863][ T7953]  ? br_changelink+0x1760/0x1760
[  511.529834][ T7953]  __rtnl_newlink+0x1173/0x1930
[  511.534849][ T7953]  ? rtnl_link_unregister+0x260/0x260
[  511.540475][ T7953]  rtnl_newlink+0x67/0xa0
[  511.545181][ T7953]  ? __rtnl_newlink+0x1930/0x1930
[  511.550309][ T7953]  rtnetlink_rcv_msg+0x3c7/0xe00
[  511.555265][ T7953]  ? rtnl_fill_vf+0x4a0/0x4a0
[  511.560177][ T7953]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  511.566174][ T7953]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  511.572449][ T7953]  netlink_rcv_skb+0x16b/0x440
[  511.577336][ T7953]  ? rtnl_fill_vf+0x4a0/0x4a0
[  511.582303][ T7953]  ? netlink_ack+0x1380/0x1380
[  511.587456][ T7953]  ? lock_sync+0x190/0x190
[  511.591897][ T7953]  ? netlink_deliver_tap+0x1a0/0xd00
[  511.597306][ T7953]  ? _copy_from_iter+0x2c1/0x10f0
[  511.602635][ T7953]  netlink_unicast+0x53b/0x810
[  511.607679][ T7953]  ? netlink_attachskb+0x880/0x880
[  511.612997][ T7953]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  511.619169][ T7953]  ? __phys_addr_symbol+0x30/0x70
[  511.624298][ T7953]  ? __check_object_size+0x323/0x730
[  511.629675][ T7953]  netlink_sendmsg+0x93c/0xe40
[  511.634450][ T7953]  ? netlink_unicast+0x810/0x810
[  511.639392][ T7953]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  511.644941][ T7953]  ? netlink_unicast+0x810/0x810
[  511.650162][ T7953]  __sock_sendmsg+0xd5/0x180
[  511.654915][ T7953]  ____sys_sendmsg+0x6ac/0x940
[  511.659695][ T7953]  ? copy_msghdr_from_user+0x10b/0x160
[  511.665259][ T7953]  ? kernel_sendmsg+0x50/0x50
[  511.669946][ T7953]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  511.676374][ T7953]  ___sys_sendmsg+0x135/0x1d0
[  511.681181][ T7953]  ? do_recvmmsg+0x740/0x740
[  511.685917][ T7953]  ? find_held_lock+0x2d/0x110
[  511.690961][ T7953]  ? preempt_count_sub+0x160/0x160
[  511.696370][ T7953]  ? __fget_light+0x1fc/0x260
[  511.701203][ T7953]  __sys_sendmsg+0x117/0x1e0
[  511.705823][ T7953]  ? __sys_sendmsg_sock+0x30/0x30
[  511.711274][ T7953]  ? syscall_enter_from_user_mode+0x7f/0x120
[  511.717276][ T7953]  do_syscall_64+0x40/0x110
[  511.721789][ T7953]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  511.727884][ T7953] RIP: 0033:0x7fb700fd30b9
[  511.732516][ T7953] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  511.752398][ T7953] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  511.761163][ T7953] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  511.769487][ T7953] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  511.777728][ T7953] RBP: 000000000007c931 R08: 0000000000000000 R09: 0000000000000006
[  511.785958][ T7953] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  511.794366][ T7953] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  511.802611][ T7953]  </TASK>
[  511.810037][ T7953] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  511.848303][ T7953] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  511.857843][ T7953] CPU: 0 PID: 7953 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  511.868129][ T7953] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  511.878389][ T7953] Call Trace:
[  511.881777][ T7953]  <TASK>
[  511.884734][ T7953]  dump_stack_lvl+0x125/0x1b0
[  511.889635][ T7953]  sysfs_warn_dup+0x7f/0xa0
[  511.894288][ T7953]  sysfs_create_dir_ns+0x249/0x2b0
[  511.899532][ T7953]  ? sysfs_create_mount_point+0xb0/0xb0
[  511.905311][ T7953]  ? spin_bug+0x1d0/0x1d0
[  511.909784][ T7953]  ? net_namespace+0x12/0x40
[  511.914508][ T7953]  ? device_namespace+0x8d/0xc0
[  511.919758][ T7953]  kobject_add_internal+0x2c8/0x970
[  511.927652][ T7953]  kobject_add+0x16f/0x240
[  511.932638][ T7953]  ? kset_create_and_add+0x190/0x190
[  511.938056][ T7953]  ? do_raw_spin_unlock+0x173/0x230
[  511.943474][ T7953]  ? kobject_put+0xbe/0x440
[  511.948545][ T7953]  ? device_add+0xc35/0x1aa0
[  511.953271][ T7953]  device_add+0x289/0x1aa0
[  511.958291][ T7953]  ? device_initialize+0x510/0x510
[  511.963710][ T7953]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  511.971285][ T7953]  ? __init_waitqueue_head+0xca/0x150
[  511.976807][ T7953]  netdev_register_kobject+0x183/0x3f0
[  511.982445][ T7953]  register_netdevice+0xbe6/0x14b0
[  511.988677][ T7953]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  511.994707][ T7953]  ? validate_linkmsg+0x6fc/0x9c0
[  512.000129][ T7953]  br_dev_newlink+0x27/0x110
[  512.004756][ T7953]  ? br_changelink+0x1760/0x1760
[  512.010002][ T7953]  __rtnl_newlink+0x1173/0x1930
[  512.015008][ T7953]  ? rtnl_link_unregister+0x260/0x260
[  512.020568][ T7953]  rtnl_newlink+0x67/0xa0
[  512.024934][ T7953]  ? __rtnl_newlink+0x1930/0x1930
[  512.030299][ T7953]  rtnetlink_rcv_msg+0x3c7/0xe00
[  512.035548][ T7953]  ? rtnl_fill_vf+0x4a0/0x4a0
[  512.040450][ T7953]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  512.046654][ T7953]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  512.052875][ T7953]  netlink_rcv_skb+0x16b/0x440
[  512.057690][ T7953]  ? rtnl_fill_vf+0x4a0/0x4a0
[  512.062855][ T7953]  ? netlink_ack+0x1380/0x1380
[  512.067750][ T7953]  ? lock_sync+0x190/0x190
[  512.073191][ T7953]  ? netlink_deliver_tap+0x1a0/0xd00
[  512.078539][ T7953]  ? _copy_from_iter+0x2c1/0x10f0
[  512.084231][ T7953]  netlink_unicast+0x53b/0x810
[  512.089056][ T7953]  ? netlink_attachskb+0x880/0x880
[  512.094400][ T7953]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  512.100772][ T7953]  ? __phys_addr_symbol+0x30/0x70
[  512.106188][ T7953]  ? __check_object_size+0x323/0x730
[  512.111787][ T7953]  netlink_sendmsg+0x93c/0xe40
[  512.116786][ T7953]  ? netlink_unicast+0x810/0x810
[  512.121966][ T7953]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  512.127395][ T7953]  ? netlink_unicast+0x810/0x810
[  512.132644][ T7953]  __sock_sendmsg+0xd5/0x180
[  512.137375][ T7953]  ____sys_sendmsg+0x6ac/0x940
[  512.142535][ T7953]  ? copy_msghdr_from_user+0x10b/0x160
[  512.148740][ T7953]  ? kernel_sendmsg+0x50/0x50
[  512.153557][ T7953]  ? hlock_class+0x4e/0x130
[  512.158477][ T7953]  ? __lock_acquire+0x14e0/0x3b10
[  512.163927][ T7953]  ___sys_sendmsg+0x135/0x1d0
[  512.168669][ T7953]  ? do_recvmmsg+0x740/0x740
[  512.173392][ T7953]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  512.179601][ T7953]  ? find_held_lock+0x2d/0x110
[  512.184704][ T7953]  ? __fget_light+0x1fc/0x260
[  512.189420][ T7953]  __sys_sendmsg+0x117/0x1e0
[  512.194170][ T7953]  ? __sys_sendmsg_sock+0x30/0x30
[  512.199329][ T7953]  ? xfd_validate_state+0x5d/0x180
[  512.204613][ T7953]  ? syscall_enter_from_user_mode+0x7f/0x120
[  512.210653][ T7953]  do_syscall_64+0x40/0x110
[  512.215477][ T7953]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  512.222050][ T7953] RIP: 0033:0x7fb700fd30b9
[  512.226769][ T7953] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  512.246587][ T7953] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  512.255754][ T7953] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  512.264289][ T7953] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  512.272737][ T7953] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  512.281000][ T7953] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  512.289269][ T7953] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  512.297515][ T7953]  </TASK>
[  512.301881][ T7953] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  512.389155][ T7973] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  512.416431][ T7973] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  512.435387][ T7973] CPU: 0 PID: 7973 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  512.446739][ T7973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  512.457172][ T7973] Call Trace:
[  512.460646][ T7973]  <TASK>
[  512.463679][ T7973]  dump_stack_lvl+0x125/0x1b0
[  512.468647][ T7973]  sysfs_warn_dup+0x7f/0xa0
[  512.473221][ T7973]  sysfs_create_dir_ns+0x249/0x2b0
[  512.478540][ T7973]  ? sysfs_create_mount_point+0xb0/0xb0
[  512.484201][ T7973]  ? spin_bug+0x1d0/0x1d0
[  512.488810][ T7973]  ? net_namespace+0x12/0x40
[  512.493699][ T7973]  ? device_namespace+0x8d/0xc0
[  512.498850][ T7973]  kobject_add_internal+0x2c8/0x970
[  512.504092][ T7973]  kobject_add+0x16f/0x240
[  512.508886][ T7973]  ? kset_create_and_add+0x190/0x190
[  512.514543][ T7973]  ? do_raw_spin_unlock+0x173/0x230
[  512.520105][ T7973]  ? kobject_put+0xbe/0x440
[  512.524720][ T7973]  ? device_add+0xc35/0x1aa0
[  512.529697][ T7973]  device_add+0x289/0x1aa0
[  512.534424][ T7973]  ? device_initialize+0x510/0x510
[  512.539746][ T7973]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  512.546764][ T7973]  ? __init_waitqueue_head+0xca/0x150
[  512.552197][ T7973]  netdev_register_kobject+0x183/0x3f0
[  512.557799][ T7973]  register_netdevice+0xbe6/0x14b0
[  512.563148][ T7973]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  512.569154][ T7973]  ? validate_linkmsg+0x6fc/0x9c0
[  512.574310][ T7973]  br_dev_newlink+0x27/0x110
[  512.579002][ T7973]  ? br_changelink+0x1760/0x1760
[  512.584210][ T7973]  __rtnl_newlink+0x1173/0x1930
[  512.589079][ T7973]  ? rtnl_link_unregister+0x260/0x260
[  512.594497][ T7973]  rtnl_newlink+0x67/0xa0
[  512.598843][ T7973]  ? __rtnl_newlink+0x1930/0x1930
[  512.604141][ T7973]  rtnetlink_rcv_msg+0x3c7/0xe00
[  512.609273][ T7973]  ? rtnl_fill_vf+0x4a0/0x4a0
[  512.613962][ T7973]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  512.620138][ T7973]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  512.626411][ T7973]  netlink_rcv_skb+0x16b/0x440
[  512.631271][ T7973]  ? rtnl_fill_vf+0x4a0/0x4a0
[  512.635982][ T7973]  ? netlink_ack+0x1380/0x1380
[  512.641307][ T7973]  ? lock_sync+0x190/0x190
[  512.645767][ T7973]  ? netlink_deliver_tap+0x1a0/0xd00
[  512.651253][ T7973]  ? _copy_from_iter+0x2c1/0x10f0
[  512.656386][ T7973]  netlink_unicast+0x53b/0x810
[  512.661172][ T7973]  ? netlink_attachskb+0x880/0x880
[  512.666290][ T7973]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  512.672280][ T7973]  ? __phys_addr_symbol+0x30/0x70
[  512.677522][ T7973]  ? __check_object_size+0x323/0x730
[  512.682831][ T7973]  netlink_sendmsg+0x93c/0xe40
[  512.687796][ T7973]  ? netlink_unicast+0x810/0x810
[  512.693027][ T7973]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  512.698326][ T7973]  ? netlink_unicast+0x810/0x810
[  512.703504][ T7973]  __sock_sendmsg+0xd5/0x180
[  512.708104][ T7973]  ____sys_sendmsg+0x6ac/0x940
[  512.713256][ T7973]  ? copy_msghdr_from_user+0x10b/0x160
[  512.718993][ T7973]  ? kernel_sendmsg+0x50/0x50
[  512.723864][ T7973]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  512.730237][ T7973]  ___sys_sendmsg+0x135/0x1d0
[  512.735100][ T7973]  ? do_recvmmsg+0x740/0x740
[  512.740135][ T7973]  ? find_held_lock+0x2d/0x110
[  512.744992][ T7973]  ? preempt_count_sub+0x160/0x160
[  512.750208][ T7973]  ? __fget_light+0x1fc/0x260
[  512.755065][ T7973]  __sys_sendmsg+0x117/0x1e0
[  512.759768][ T7973]  ? __sys_sendmsg_sock+0x30/0x30
[  512.764991][ T7973]  ? xfd_validate_state+0x5d/0x180
[  512.770339][ T7973]  ? syscall_enter_from_user_mode+0x7f/0x120
[  512.776459][ T7973]  do_syscall_64+0x40/0x110
[  512.781065][ T7973]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  512.787380][ T7973] RIP: 0033:0x7fb700fd30b9
[  512.792330][ T7973] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  512.813348][ T7973] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  512.822208][ T7973] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  512.830700][ T7973] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  512.838676][ T7973] RBP: 000000000007cd56 R08: 0000000000000000 R09: 0000000000000006
[  512.846825][ T7973] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  512.854886][ T7973] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  512.863050][ T7973]  </TASK>
[  512.871804][ T7973] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  512.954109][ T7973] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  512.964606][ T7973] CPU: 0 PID: 7973 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  512.974794][ T7973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  512.985607][ T7973] Call Trace:
[  512.988950][ T7973]  <TASK>
[  512.992244][ T7973]  dump_stack_lvl+0x125/0x1b0
[  512.996981][ T7973]  sysfs_warn_dup+0x7f/0xa0
[  513.001792][ T7973]  sysfs_create_dir_ns+0x249/0x2b0
[  513.007130][ T7973]  ? sysfs_create_mount_point+0xb0/0xb0
[  513.013144][ T7973]  ? spin_bug+0x1d0/0x1d0
[  513.017586][ T7973]  ? net_namespace+0x12/0x40
[  513.022635][ T7973]  ? device_namespace+0x8d/0xc0
[  513.029183][ T7973]  kobject_add_internal+0x2c8/0x970
[  513.034602][ T7973]  kobject_add+0x16f/0x240
[  513.039156][ T7973]  ? kset_create_and_add+0x190/0x190
[  513.044575][ T7973]  ? do_raw_spin_unlock+0x173/0x230
[  513.050078][ T7973]  ? kobject_put+0xbe/0x440
[  513.054790][ T7973]  ? device_add+0xc35/0x1aa0
[  513.059409][ T7973]  device_add+0x289/0x1aa0
[  513.063850][ T7973]  ? device_initialize+0x510/0x510
[  513.069152][ T7973]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  513.076236][ T7973]  ? __init_waitqueue_head+0xca/0x150
[  513.081919][ T7973]  netdev_register_kobject+0x183/0x3f0
[  513.087440][ T7973]  register_netdevice+0xbe6/0x14b0
[  513.092702][ T7973]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  513.098656][ T7973]  ? validate_linkmsg+0x6fc/0x9c0
[  513.104425][ T7973]  br_dev_newlink+0x27/0x110
[  513.109080][ T7973]  ? br_changelink+0x1760/0x1760
[  513.114245][ T7973]  __rtnl_newlink+0x1173/0x1930
[  513.119533][ T7973]  ? rtnl_link_unregister+0x260/0x260
[  513.125081][ T7973]  rtnl_newlink+0x67/0xa0
[  513.129658][ T7973]  ? __rtnl_newlink+0x1930/0x1930
[  513.134911][ T7973]  rtnetlink_rcv_msg+0x3c7/0xe00
[  513.140095][ T7973]  ? rtnl_fill_vf+0x4a0/0x4a0
[  513.145116][ T7973]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  513.151409][ T7973]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  513.157629][ T7973]  netlink_rcv_skb+0x16b/0x440
[  513.162454][ T7973]  ? rtnl_fill_vf+0x4a0/0x4a0
[  513.167184][ T7973]  ? netlink_ack+0x1380/0x1380
[  513.172341][ T7973]  ? lock_sync+0x190/0x190
[  513.177094][ T7973]  ? netlink_deliver_tap+0x1a0/0xd00
[  513.182445][ T7973]  ? _copy_from_iter+0x2c1/0x10f0
[  513.187615][ T7973]  netlink_unicast+0x53b/0x810
[  513.192539][ T7973]  ? netlink_attachskb+0x880/0x880
[  513.197694][ T7973]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  513.203632][ T7973]  ? __phys_addr_symbol+0x30/0x70
[  513.208782][ T7973]  ? __check_object_size+0x323/0x730
[  513.214112][ T7973]  netlink_sendmsg+0x93c/0xe40
[  513.219028][ T7973]  ? netlink_unicast+0x810/0x810
[  513.224146][ T7973]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  513.229566][ T7973]  ? netlink_unicast+0x810/0x810
[  513.234555][ T7973]  __sock_sendmsg+0xd5/0x180
[  513.239198][ T7973]  ____sys_sendmsg+0x6ac/0x940
[  513.243995][ T7973]  ? copy_msghdr_from_user+0x10b/0x160
[  513.249507][ T7973]  ? kernel_sendmsg+0x50/0x50
[  513.254349][ T7973]  ___sys_sendmsg+0x135/0x1d0
[  513.259067][ T7973]  ? do_recvmmsg+0x740/0x740
[  513.263798][ T7973]  ? find_held_lock+0x2d/0x110
[  513.268708][ T7973]  ? preempt_count_sub+0x160/0x160
[  513.274069][ T7973]  ? __fget_light+0x1fc/0x260
[  513.279286][ T7973]  __sys_sendmsg+0x117/0x1e0
[  513.284097][ T7973]  ? __sys_sendmsg_sock+0x30/0x30
[  513.289480][ T7973]  ? syscall_enter_from_user_mode+0x7f/0x120
[  513.295952][ T7973]  do_syscall_64+0x40/0x110
[  513.300578][ T7973]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  513.306699][ T7973] RIP: 0033:0x7fb700fd30b9
[  513.311232][ T7973] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  513.331685][ T7973] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  513.340404][ T7973] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  513.348492][ T7973] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  513.356515][ T7973] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  513.364534][ T7973] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  513.372718][ T7973] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  513.380748][ T7973]  </TASK>
[  513.385433][ T7973] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  513.449617][ T7987] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  513.461314][ T7987] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  513.470622][ T7987] CPU: 1 PID: 7987 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  513.481172][ T7987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  513.491584][ T7987] Call Trace:
[  513.494876][ T7987]  <TASK>
[  513.497810][ T7987]  dump_stack_lvl+0x125/0x1b0
[  513.502683][ T7987]  sysfs_warn_dup+0x7f/0xa0
[  513.507654][ T7987]  sysfs_create_dir_ns+0x249/0x2b0
[  513.514344][ T7987]  ? sysfs_create_mount_point+0xb0/0xb0
[  513.520885][ T7987]  ? spin_bug+0x1d0/0x1d0
[  513.525681][ T7987]  ? net_namespace+0x12/0x40
[  513.530566][ T7987]  ? device_namespace+0x8d/0xc0
[  513.535645][ T7987]  kobject_add_internal+0x2c8/0x970
[  513.540956][ T7987]  kobject_add+0x16f/0x240
[  513.545751][ T7987]  ? kset_create_and_add+0x190/0x190
[  513.551142][ T7987]  ? do_raw_spin_unlock+0x173/0x230
[  513.556389][ T7987]  ? kobject_put+0xbe/0x440
[  513.560993][ T7987]  ? device_add+0xc35/0x1aa0
[  513.565939][ T7987]  device_add+0x289/0x1aa0
[  513.570372][ T7987]  ? device_initialize+0x510/0x510
[  513.575672][ T7987]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  513.582623][ T7987]  ? __init_waitqueue_head+0xca/0x150
[  513.588112][ T7987]  netdev_register_kobject+0x183/0x3f0
[  513.593685][ T7987]  register_netdevice+0xbe6/0x14b0
[  513.599011][ T7987]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  513.605880][ T7987]  ? validate_linkmsg+0x6fc/0x9c0
[  513.611189][ T7987]  br_dev_newlink+0x27/0x110
[  513.615894][ T7987]  ? br_changelink+0x1760/0x1760
[  513.621060][ T7987]  __rtnl_newlink+0x1173/0x1930
[  513.626320][ T7987]  ? rtnl_link_unregister+0x260/0x260
[  513.631727][ T7987]  rtnl_newlink+0x67/0xa0
[  513.636240][ T7987]  ? __rtnl_newlink+0x1930/0x1930
[  513.641368][ T7987]  rtnetlink_rcv_msg+0x3c7/0xe00
[  513.646495][ T7987]  ? rtnl_fill_vf+0x4a0/0x4a0
[  513.651178][ T7987]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  513.657280][ T7987]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  513.663571][ T7987]  netlink_rcv_skb+0x16b/0x440
[  513.668356][ T7987]  ? rtnl_fill_vf+0x4a0/0x4a0
[  513.673145][ T7987]  ? netlink_ack+0x1380/0x1380
[  513.678232][ T7987]  ? lock_sync+0x190/0x190
[  513.682747][ T7987]  ? netlink_deliver_tap+0x1a0/0xd00
[  513.688247][ T7987]  ? _copy_from_iter+0x2c1/0x10f0
[  513.693458][ T7987]  netlink_unicast+0x53b/0x810
[  513.698259][ T7987]  ? netlink_attachskb+0x880/0x880
[  513.703646][ T7987]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  513.709552][ T7987]  ? __phys_addr_symbol+0x30/0x70
[  513.714768][ T7987]  ? __check_object_size+0x323/0x730
[  513.720244][ T7987]  netlink_sendmsg+0x93c/0xe40
[  513.725124][ T7987]  ? netlink_unicast+0x810/0x810
[  513.730120][ T7987]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  513.735441][ T7987]  ? netlink_unicast+0x810/0x810
[  513.740600][ T7987]  __sock_sendmsg+0xd5/0x180
[  513.745298][ T7987]  ____sys_sendmsg+0x6ac/0x940
[  513.750268][ T7987]  ? copy_msghdr_from_user+0x10b/0x160
[  513.755861][ T7987]  ? kernel_sendmsg+0x50/0x50
[  513.760712][ T7987]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  513.766727][ T7987]  ___sys_sendmsg+0x135/0x1d0
[  513.771429][ T7987]  ? do_recvmmsg+0x740/0x740
[  513.776222][ T7987]  ? find_held_lock+0x2d/0x110
[  513.781371][ T7987]  ? preempt_count_sub+0x160/0x160
[  513.786888][ T7987]  ? __fget_light+0x1fc/0x260
[  513.791674][ T7987]  __sys_sendmsg+0x117/0x1e0
[  513.796890][ T7987]  ? __sys_sendmsg_sock+0x30/0x30
[  513.801949][ T7987]  ? syscall_enter_from_user_mode+0x7f/0x120
[  513.808122][ T7987]  do_syscall_64+0x40/0x110
[  513.812741][ T7987]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  513.818919][ T7987] RIP: 0033:0x7fb700fd30b9
[  513.823350][ T7987] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  513.843599][ T7987] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  513.852286][ T7987] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  513.860357][ T7987] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  513.868357][ T7987] RBP: 000000000007d156 R08: 0000000000000000 R09: 0000000000000006
[  513.876478][ T7987] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  513.884796][ T7987] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  513.892788][ T7987]  </TASK>
[  513.901065][ T7987] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  513.986683][ T7987] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  513.998601][ T7987] CPU: 1 PID: 7987 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  514.008908][ T7987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  514.019515][ T7987] Call Trace:
[  514.022907][ T7987]  <TASK>
[  514.025946][ T7987]  dump_stack_lvl+0x125/0x1b0
[  514.030814][ T7987]  sysfs_warn_dup+0x7f/0xa0
[  514.035416][ T7987]  sysfs_create_dir_ns+0x249/0x2b0
[  514.040541][ T7987]  ? sysfs_create_mount_point+0xb0/0xb0
[  514.046267][ T7987]  ? spin_bug+0x1d0/0x1d0
[  514.050774][ T7987]  ? net_namespace+0x12/0x40
[  514.055370][ T7987]  ? device_namespace+0x8d/0xc0
[  514.060321][ T7987]  kobject_add_internal+0x2c8/0x970
[  514.065629][ T7987]  kobject_add+0x16f/0x240
[  514.070312][ T7987]  ? kset_create_and_add+0x190/0x190
[  514.075606][ T7987]  ? do_raw_spin_unlock+0x173/0x230
[  514.080913][ T7987]  ? kobject_put+0xbe/0x440
[  514.085512][ T7987]  ? device_add+0xc35/0x1aa0
[  514.090119][ T7987]  device_add+0x289/0x1aa0
[  514.094551][ T7987]  ? device_initialize+0x510/0x510
[  514.099761][ T7987]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  514.106797][ T7987]  ? __init_waitqueue_head+0xca/0x150
[  514.112188][ T7987]  netdev_register_kobject+0x183/0x3f0
[  514.117672][ T7987]  register_netdevice+0xbe6/0x14b0
[  514.122976][ T7987]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  514.128903][ T7987]  ? validate_linkmsg+0x6fc/0x9c0
[  514.133940][ T7987]  br_dev_newlink+0x27/0x110
[  514.138643][ T7987]  ? br_changelink+0x1760/0x1760
[  514.143673][ T7987]  __rtnl_newlink+0x1173/0x1930
[  514.148718][ T7987]  ? rtnl_link_unregister+0x260/0x260
[  514.154738][ T7987]  rtnl_newlink+0x67/0xa0
[  514.159348][ T7987]  ? __rtnl_newlink+0x1930/0x1930
[  514.164653][ T7987]  rtnetlink_rcv_msg+0x3c7/0xe00
[  514.169775][ T7987]  ? rtnl_fill_vf+0x4a0/0x4a0
[  514.174463][ T7987]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  514.180856][ T7987]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  514.187035][ T7987]  netlink_rcv_skb+0x16b/0x440
[  514.191958][ T7987]  ? rtnl_fill_vf+0x4a0/0x4a0
[  514.196648][ T7987]  ? netlink_ack+0x1380/0x1380
[  514.201597][ T7987]  ? lock_sync+0x190/0x190
[  514.206174][ T7987]  ? netlink_deliver_tap+0x1a0/0xd00
[  514.211669][ T7987]  ? _copy_from_iter+0x2c1/0x10f0
[  514.217149][ T7987]  netlink_unicast+0x53b/0x810
[  514.222374][ T7987]  ? netlink_attachskb+0x880/0x880
[  514.227589][ T7987]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  514.233546][ T7987]  ? __phys_addr_symbol+0x30/0x70
[  514.238669][ T7987]  ? __check_object_size+0x323/0x730
[  514.244775][ T7987]  netlink_sendmsg+0x93c/0xe40
[  514.250083][ T7987]  ? netlink_unicast+0x810/0x810
[  514.255315][ T7987]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  514.260614][ T7987]  ? netlink_unicast+0x810/0x810
[  514.265764][ T7987]  __sock_sendmsg+0xd5/0x180
[  514.270449][ T7987]  ____sys_sendmsg+0x6ac/0x940
[  514.275222][ T7987]  ? copy_msghdr_from_user+0x10b/0x160
[  514.280691][ T7987]  ? kernel_sendmsg+0x50/0x50
[  514.285506][ T7987]  ? hlock_class+0x4e/0x130
[  514.290540][ T7987]  ? __lock_acquire+0x14e0/0x3b10
[  514.296138][ T7987]  ___sys_sendmsg+0x135/0x1d0
[  514.301472][ T7987]  ? do_recvmmsg+0x740/0x740
[  514.306270][ T7987]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  514.312728][ T7987]  ? find_held_lock+0x2d/0x110
[  514.317904][ T7987]  ? __fget_light+0x1fc/0x260
[  514.322899][ T7987]  __sys_sendmsg+0x117/0x1e0
[  514.327523][ T7987]  ? __sys_sendmsg_sock+0x30/0x30
[  514.332697][ T7987]  ? __do_sys_rseq+0x750/0x750
[  514.337582][ T7987]  ? syscall_enter_from_user_mode+0x7f/0x120
[  514.344127][ T7987]  do_syscall_64+0x40/0x110
[  514.348650][ T7987]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  514.356820][ T7987] RIP: 0033:0x7fb700fd30b9
[  514.361409][ T7987] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  514.382057][ T7987] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  514.390822][ T7987] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  514.399441][ T7987] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  514.407499][ T7987] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  514.415556][ T7987] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  514.423553][ T7987] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  514.431815][ T7987]  </TASK>
[  514.438965][ T7987] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  514.555119][ T7999] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  514.566866][ T7999] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  514.577793][ T7999] CPU: 0 PID: 7999 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  514.588195][ T7999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  514.598344][ T7999] Call Trace:
[  514.601986][ T7999]  <TASK>
[  514.604996][ T7999]  dump_stack_lvl+0x125/0x1b0
[  514.609686][ T7999]  sysfs_warn_dup+0x7f/0xa0
[  514.614593][ T7999]  sysfs_create_dir_ns+0x249/0x2b0
[  514.620076][ T7999]  ? sysfs_create_mount_point+0xb0/0xb0
[  514.625812][ T7999]  ? spin_bug+0x1d0/0x1d0
[  514.630603][ T7999]  ? net_namespace+0x12/0x40
[  514.635743][ T7999]  ? device_namespace+0x8d/0xc0
[  514.640871][ T7999]  kobject_add_internal+0x2c8/0x970
[  514.646109][ T7999]  kobject_add+0x16f/0x240
[  514.650641][ T7999]  ? kset_create_and_add+0x190/0x190
[  514.656075][ T7999]  ? do_raw_spin_unlock+0x173/0x230
[  514.661364][ T7999]  ? kobject_put+0xbe/0x440
[  514.665888][ T7999]  ? device_add+0xc35/0x1aa0
[  514.670574][ T7999]  device_add+0x289/0x1aa0
[  514.675000][ T7999]  ? device_initialize+0x510/0x510
[  514.680155][ T7999]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  514.687015][ T7999]  ? __init_waitqueue_head+0xca/0x150
[  514.692702][ T7999]  netdev_register_kobject+0x183/0x3f0
[  514.698389][ T7999]  register_netdevice+0xbe6/0x14b0
[  514.703610][ T7999]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  514.709779][ T7999]  ? validate_linkmsg+0x6fc/0x9c0
[  514.714813][ T7999]  br_dev_newlink+0x27/0x110
[  514.719496][ T7999]  ? br_changelink+0x1760/0x1760
[  514.724452][ T7999]  __rtnl_newlink+0x1173/0x1930
[  514.730369][ T7999]  ? rtnl_link_unregister+0x260/0x260
[  514.735867][ T7999]  rtnl_newlink+0x67/0xa0
[  514.740298][ T7999]  ? __rtnl_newlink+0x1930/0x1930
[  514.745517][ T7999]  rtnetlink_rcv_msg+0x3c7/0xe00
[  514.750828][ T7999]  ? rtnl_fill_vf+0x4a0/0x4a0
[  514.755905][ T7999]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  514.762012][ T7999]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  514.768373][ T7999]  netlink_rcv_skb+0x16b/0x440
[  514.773415][ T7999]  ? rtnl_fill_vf+0x4a0/0x4a0
[  514.778148][ T7999]  ? netlink_ack+0x1380/0x1380
[  514.782926][ T7999]  ? lock_sync+0x190/0x190
[  514.787369][ T7999]  ? netlink_deliver_tap+0x1a0/0xd00
[  514.792860][ T7999]  ? _copy_from_iter+0x2c1/0x10f0
[  514.797991][ T7999]  netlink_unicast+0x53b/0x810
[  514.802965][ T7999]  ? netlink_attachskb+0x880/0x880
[  514.808693][ T7999]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  514.814949][ T7999]  ? __phys_addr_symbol+0x30/0x70
[  514.822765][ T7999]  ? __check_object_size+0x323/0x730
[  514.829206][ T7999]  netlink_sendmsg+0x93c/0xe40
[  514.834281][ T7999]  ? netlink_unicast+0x810/0x810
[  514.839669][ T7999]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  514.845310][ T7999]  ? netlink_unicast+0x810/0x810
[  514.852093][ T7999]  __sock_sendmsg+0xd5/0x180
[  514.856942][ T7999]  ____sys_sendmsg+0x6ac/0x940
[  514.862062][ T7999]  ? copy_msghdr_from_user+0x10b/0x160
[  514.867729][ T7999]  ? kernel_sendmsg+0x50/0x50
[  514.873035][ T7999]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  514.879324][ T7999]  ___sys_sendmsg+0x135/0x1d0
[  514.884050][ T7999]  ? do_recvmmsg+0x740/0x740
[  514.888752][ T7999]  ? find_held_lock+0x2d/0x110
[  514.893540][ T7999]  ? preempt_count_sub+0x160/0x160
[  514.898842][ T7999]  ? __fget_light+0x1fc/0x260
[  514.903723][ T7999]  __sys_sendmsg+0x117/0x1e0
[  514.908324][ T7999]  ? __sys_sendmsg_sock+0x30/0x30
[  514.913374][ T7999]  ? syscall_enter_from_user_mode+0x7f/0x120
[  514.919455][ T7999]  do_syscall_64+0x40/0x110
[  514.924050][ T7999]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  514.930129][ T7999] RIP: 0033:0x7fb700fd30b9
[  514.934642][ T7999] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  514.954613][ T7999] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  514.963047][ T7999] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  514.971291][ T7999] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  514.979358][ T7999] RBP: 000000000007d57c R08: 0000000000000000 R09: 0000000000000006
[  514.987352][ T7999] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  514.995587][ T7999] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  515.003845][ T7999]  </TASK>
[  515.010075][ T7999] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  515.076433][ T7999] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  515.085718][ T7999] CPU: 0 PID: 7999 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  515.095890][ T7999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  515.106491][ T7999] Call Trace:
[  515.109783][ T7999]  <TASK>
[  515.112725][ T7999]  dump_stack_lvl+0x125/0x1b0
[  515.117740][ T7999]  sysfs_warn_dup+0x7f/0xa0
[  515.122397][ T7999]  sysfs_create_dir_ns+0x249/0x2b0
[  515.127961][ T7999]  ? sysfs_create_mount_point+0xb0/0xb0
[  515.133685][ T7999]  ? spin_bug+0x1d0/0x1d0
[  515.138014][ T7999]  ? net_namespace+0x12/0x40
[  515.142741][ T7999]  ? device_namespace+0x8d/0xc0
[  515.147764][ T7999]  kobject_add_internal+0x2c8/0x970
[  515.152990][ T7999]  kobject_add+0x16f/0x240
[  515.157700][ T7999]  ? kset_create_and_add+0x190/0x190
[  515.163343][ T7999]  ? do_raw_spin_unlock+0x173/0x230
[  515.168736][ T7999]  ? kobject_put+0xbe/0x440
[  515.173336][ T7999]  ? device_add+0xc35/0x1aa0
[  515.178047][ T7999]  device_add+0x289/0x1aa0
[  515.182732][ T7999]  ? device_initialize+0x510/0x510
[  515.188021][ T7999]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  515.194883][ T7999]  ? __init_waitqueue_head+0xca/0x150
[  515.200276][ T7999]  netdev_register_kobject+0x183/0x3f0
[  515.205942][ T7999]  register_netdevice+0xbe6/0x14b0
[  515.211644][ T7999]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  515.217551][ T7999]  ? validate_linkmsg+0x6fc/0x9c0
[  515.222590][ T7999]  br_dev_newlink+0x27/0x110
[  515.227303][ T7999]  ? br_changelink+0x1760/0x1760
[  515.232539][ T7999]  __rtnl_newlink+0x1173/0x1930
[  515.237422][ T7999]  ? rtnl_link_unregister+0x260/0x260
[  515.242834][ T7999]  rtnl_newlink+0x67/0xa0
[  515.247346][ T7999]  ? __rtnl_newlink+0x1930/0x1930
[  515.252638][ T7999]  rtnetlink_rcv_msg+0x3c7/0xe00
[  515.257714][ T7999]  ? rtnl_fill_vf+0x4a0/0x4a0
[  515.262666][ T7999]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  515.268744][ T7999]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  515.275095][ T7999]  netlink_rcv_skb+0x16b/0x440
[  515.280046][ T7999]  ? rtnl_fill_vf+0x4a0/0x4a0
[  515.286121][ T7999]  ? netlink_ack+0x1380/0x1380
[  515.290980][ T7999]  ? lock_sync+0x190/0x190
[  515.296042][ T7999]  ? netlink_deliver_tap+0x1a0/0xd00
[  515.301519][ T7999]  ? _copy_from_iter+0x2c1/0x10f0
[  515.306831][ T7999]  netlink_unicast+0x53b/0x810
[  515.311699][ T7999]  ? netlink_attachskb+0x880/0x880
[  515.317003][ T7999]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  515.323343][ T7999]  ? __phys_addr_symbol+0x30/0x70
[  515.328373][ T7999]  ? __check_object_size+0x323/0x730
[  515.333710][ T7999]  netlink_sendmsg+0x93c/0xe40
[  515.338579][ T7999]  ? netlink_unicast+0x810/0x810
[  515.343629][ T7999]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  515.349182][ T7999]  ? netlink_unicast+0x810/0x810
[  515.354144][ T7999]  __sock_sendmsg+0xd5/0x180
[  515.358828][ T7999]  ____sys_sendmsg+0x6ac/0x940
[  515.363601][ T7999]  ? copy_msghdr_from_user+0x10b/0x160
[  515.369462][ T7999]  ? kernel_sendmsg+0x50/0x50
[  515.374597][ T7999]  ___sys_sendmsg+0x135/0x1d0
[  515.379305][ T7999]  ? do_recvmmsg+0x740/0x740
[  515.383962][ T7999]  ? find_held_lock+0x2d/0x110
[  515.388746][ T7999]  ? preempt_count_sub+0x160/0x160
[  515.394032][ T7999]  ? __fget_light+0x1fc/0x260
[  515.398718][ T7999]  __sys_sendmsg+0x117/0x1e0
[  515.403406][ T7999]  ? __sys_sendmsg_sock+0x30/0x30
[  515.408523][ T7999]  ? xfd_validate_state+0x5d/0x180
[  515.413749][ T7999]  ? syscall_enter_from_user_mode+0x7f/0x120
[  515.419923][ T7999]  do_syscall_64+0x40/0x110
[  515.424471][ T7999]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  515.430548][ T7999] RIP: 0033:0x7fb700fd30b9
[  515.434974][ T7999] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  515.454864][ T7999] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  515.463410][ T7999] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  515.471490][ T7999] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  515.479477][ T7999] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  515.487972][ T7999] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  515.496124][ T7999] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  515.504284][ T7999]  </TASK>
[  515.510134][ T7999] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  515.583113][ T8001] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  515.593675][ T8001] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  515.603102][ T8001] CPU: 1 PID: 8001 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  515.613431][ T8001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  515.623850][ T8001] Call Trace:
[  515.627144][ T8001]  <TASK>
[  515.630082][ T8001]  dump_stack_lvl+0x125/0x1b0
[  515.634813][ T8001]  sysfs_warn_dup+0x7f/0xa0
[  515.639339][ T8001]  sysfs_create_dir_ns+0x249/0x2b0
[  515.644556][ T8001]  ? sysfs_create_mount_point+0xb0/0xb0
[  515.650297][ T8001]  ? spin_bug+0x1d0/0x1d0
[  515.654728][ T8001]  ? net_namespace+0x12/0x40
[  515.659547][ T8001]  ? device_namespace+0x8d/0xc0
[  515.664505][ T8001]  kobject_add_internal+0x2c8/0x970
[  515.669895][ T8001]  kobject_add+0x16f/0x240
[  515.674321][ T8001]  ? kset_create_and_add+0x190/0x190
[  515.679771][ T8001]  ? do_raw_spin_unlock+0x173/0x230
[  515.684978][ T8001]  ? kobject_put+0xbe/0x440
[  515.689756][ T8001]  ? device_add+0xc35/0x1aa0
[  515.694358][ T8001]  device_add+0x289/0x1aa0
[  515.698781][ T8001]  ? device_initialize+0x510/0x510
[  515.703988][ T8001]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  515.711136][ T8001]  ? __init_waitqueue_head+0xca/0x150
[  515.716563][ T8001]  netdev_register_kobject+0x183/0x3f0
[  515.722060][ T8001]  register_netdevice+0xbe6/0x14b0
[  515.727456][ T8001]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  515.733463][ T8001]  ? validate_linkmsg+0x6fc/0x9c0
[  515.738535][ T8001]  br_dev_newlink+0x27/0x110
[  515.743436][ T8001]  ? br_changelink+0x1760/0x1760
[  515.748508][ T8001]  __rtnl_newlink+0x1173/0x1930
[  515.753643][ T8001]  ? rtnl_link_unregister+0x260/0x260
[  515.759263][ T8001]  rtnl_newlink+0x67/0xa0
[  515.763669][ T8001]  ? __rtnl_newlink+0x1930/0x1930
[  515.769338][ T8001]  rtnetlink_rcv_msg+0x3c7/0xe00
[  515.774299][ T8001]  ? rtnl_fill_vf+0x4a0/0x4a0
[  515.779164][ T8001]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  515.785180][ T8001]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  515.791288][ T8001]  netlink_rcv_skb+0x16b/0x440
[  515.796719][ T8001]  ? rtnl_fill_vf+0x4a0/0x4a0
[  515.801591][ T8001]  ? netlink_ack+0x1380/0x1380
[  515.806632][ T8001]  ? lock_sync+0x190/0x190
[  515.811087][ T8001]  ? netlink_deliver_tap+0x1a0/0xd00
[  515.816728][ T8001]  ? _copy_from_iter+0x2c1/0x10f0
[  515.822142][ T8001]  netlink_unicast+0x53b/0x810
[  515.827184][ T8001]  ? netlink_attachskb+0x880/0x880
[  515.832694][ T8001]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  515.839250][ T8001]  ? __phys_addr_symbol+0x30/0x70
[  515.844371][ T8001]  ? __check_object_size+0x323/0x730
[  515.849751][ T8001]  netlink_sendmsg+0x93c/0xe40
[  515.854708][ T8001]  ? netlink_unicast+0x810/0x810
[  515.859665][ T8001]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  515.865051][ T8001]  ? netlink_unicast+0x810/0x810
[  515.870007][ T8001]  __sock_sendmsg+0xd5/0x180
[  515.874699][ T8001]  ____sys_sendmsg+0x6ac/0x940
[  515.879560][ T8001]  ? copy_msghdr_from_user+0x10b/0x160
[  515.885200][ T8001]  ? kernel_sendmsg+0x50/0x50
[  515.889976][ T8001]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  515.895971][ T8001]  ___sys_sendmsg+0x135/0x1d0
[  515.900668][ T8001]  ? do_recvmmsg+0x740/0x740
[  515.905401][ T8001]  ? find_held_lock+0x2d/0x110
[  515.910216][ T8001]  ? preempt_count_sub+0x160/0x160
[  515.915355][ T8001]  ? __fget_light+0x1fc/0x260
[  515.920134][ T8001]  __sys_sendmsg+0x117/0x1e0
[  515.925010][ T8001]  ? __sys_sendmsg_sock+0x30/0x30
[  515.930408][ T8001]  ? syscall_enter_from_user_mode+0x7f/0x120
[  515.936406][ T8001]  do_syscall_64+0x40/0x110
[  515.941277][ T8001]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  515.947509][ T8001] RIP: 0033:0x7fb700fd30b9
[  515.952274][ T8001] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  515.972248][ T8001] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  515.980693][ T8001] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  515.988673][ T8001] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  515.996644][ T8001] RBP: 000000000007d9c7 R08: 0000000000000000 R09: 0000000000000006
[  516.004712][ T8001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  516.012690][ T8001] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  516.021124][ T8001]  </TASK>
[  516.024940][ T8001] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  516.096008][ T8001] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  516.105230][ T8001] CPU: 1 PID: 8001 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  516.115671][ T8001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  516.126173][ T8001] Call Trace:
[  516.129623][ T8001]  <TASK>
[  516.132553][ T8001]  dump_stack_lvl+0x125/0x1b0
[  516.137330][ T8001]  sysfs_warn_dup+0x7f/0xa0
[  516.142199][ T8001]  sysfs_create_dir_ns+0x249/0x2b0
[  516.147411][ T8001]  ? sysfs_create_mount_point+0xb0/0xb0
[  516.153328][ T8001]  ? spin_bug+0x1d0/0x1d0
[  516.157660][ T8001]  ? net_namespace+0x12/0x40
[  516.162380][ T8001]  ? device_namespace+0x8d/0xc0
[  516.167325][ T8001]  kobject_add_internal+0x2c8/0x970
[  516.172535][ T8001]  kobject_add+0x16f/0x240
[  516.176959][ T8001]  ? kset_create_and_add+0x190/0x190
[  516.182246][ T8001]  ? do_raw_spin_unlock+0x173/0x230
[  516.187535][ T8001]  ? kobject_put+0xbe/0x440
[  516.192046][ T8001]  ? device_add+0xc35/0x1aa0
[  516.196637][ T8001]  device_add+0x289/0x1aa0
[  516.201140][ T8001]  ? device_initialize+0x510/0x510
[  516.206252][ T8001]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  516.213305][ T8001]  ? __init_waitqueue_head+0xca/0x150
[  516.218798][ T8001]  netdev_register_kobject+0x183/0x3f0
[  516.224541][ T8001]  register_netdevice+0xbe6/0x14b0
[  516.229854][ T8001]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  516.235755][ T8001]  ? validate_linkmsg+0x6fc/0x9c0
[  516.240794][ T8001]  br_dev_newlink+0x27/0x110
[  516.245477][ T8001]  ? br_changelink+0x1760/0x1760
[  516.250697][ T8001]  __rtnl_newlink+0x1173/0x1930
[  516.255679][ T8001]  ? rtnl_link_unregister+0x260/0x260
[  516.261247][ T8001]  rtnl_newlink+0x67/0xa0
[  516.265850][ T8001]  ? __rtnl_newlink+0x1930/0x1930
[  516.271081][ T8001]  rtnetlink_rcv_msg+0x3c7/0xe00
[  516.276131][ T8001]  ? rtnl_fill_vf+0x4a0/0x4a0
[  516.280840][ T8001]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  516.286947][ T8001]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  516.293283][ T8001]  netlink_rcv_skb+0x16b/0x440
[  516.298055][ T8001]  ? rtnl_fill_vf+0x4a0/0x4a0
[  516.302742][ T8001]  ? netlink_ack+0x1380/0x1380
[  516.307620][ T8001]  ? lock_sync+0x190/0x190
[  516.312057][ T8001]  ? netlink_deliver_tap+0x1a0/0xd00
[  516.317347][ T8001]  ? _copy_from_iter+0x2c1/0x10f0
[  516.322460][ T8001]  netlink_unicast+0x53b/0x810
[  516.327506][ T8001]  ? netlink_attachskb+0x880/0x880
[  516.332653][ T8001]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  516.338979][ T8001]  ? __phys_addr_symbol+0x30/0x70
[  516.344206][ T8001]  ? __check_object_size+0x323/0x730
[  516.349676][ T8001]  netlink_sendmsg+0x93c/0xe40
[  516.354619][ T8001]  ? netlink_unicast+0x810/0x810
[  516.359587][ T8001]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  516.365203][ T8001]  ? netlink_unicast+0x810/0x810
[  516.370256][ T8001]  __sock_sendmsg+0xd5/0x180
[  516.375386][ T8001]  ____sys_sendmsg+0x6ac/0x940
[  516.380384][ T8001]  ? copy_msghdr_from_user+0x10b/0x160
[  516.385944][ T8001]  ? kernel_sendmsg+0x50/0x50
[  516.390721][ T8001]  ___sys_sendmsg+0x135/0x1d0
[  516.395591][ T8001]  ? do_recvmmsg+0x740/0x740
[  516.400299][ T8001]  ? find_held_lock+0x2d/0x110
[  516.405162][ T8001]  ? preempt_count_sub+0x160/0x160
[  516.410297][ T8001]  ? __fget_light+0x1fc/0x260
[  516.414973][ T8001]  __sys_sendmsg+0x117/0x1e0
[  516.419685][ T8001]  ? __sys_sendmsg_sock+0x30/0x30
[  516.424730][ T8001]  ? syscall_enter_from_user_mode+0x7f/0x120
[  516.430726][ T8001]  do_syscall_64+0x40/0x110
[  516.435500][ T8001]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  516.441482][ T8001] RIP: 0033:0x7fb700fd30b9
[  516.446065][ T8001] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  516.466206][ T8001] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  516.474888][ T8001] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  516.483123][ T8001] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  516.491443][ T8001] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  516.499502][ T8001] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  516.507976][ T8001] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  516.516162][ T8001]  </TASK>
[  516.527078][ T8001] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  516.582914][ T8002] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  516.593828][ T8002] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  516.603844][ T8002] CPU: 0 PID: 8002 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  516.614153][ T8002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  516.624228][ T8002] Call Trace:
[  516.627598][ T8002]  <TASK>
[  516.630547][ T8002]  dump_stack_lvl+0x125/0x1b0
[  516.635499][ T8002]  sysfs_warn_dup+0x7f/0xa0
[  516.640101][ T8002]  sysfs_create_dir_ns+0x249/0x2b0
[  516.645229][ T8002]  ? sysfs_create_mount_point+0xb0/0xb0
[  516.650973][ T8002]  ? spin_bug+0x1d0/0x1d0
[  516.655328][ T8002]  ? net_namespace+0x12/0x40
[  516.660111][ T8002]  ? device_namespace+0x8d/0xc0
[  516.664980][ T8002]  kobject_add_internal+0x2c8/0x970
[  516.670204][ T8002]  kobject_add+0x16f/0x240
[  516.674637][ T8002]  ? kset_create_and_add+0x190/0x190
[  516.680106][ T8002]  ? do_raw_spin_unlock+0x173/0x230
[  516.685401][ T8002]  ? kobject_put+0xbe/0x440
[  516.690085][ T8002]  ? device_add+0xc35/0x1aa0
[  516.694860][ T8002]  device_add+0x289/0x1aa0
[  516.699299][ T8002]  ? device_initialize+0x510/0x510
[  516.704604][ T8002]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  516.711484][ T8002]  ? __init_waitqueue_head+0xca/0x150
[  516.717183][ T8002]  netdev_register_kobject+0x183/0x3f0
[  516.722756][ T8002]  register_netdevice+0xbe6/0x14b0
[  516.727987][ T8002]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  516.733999][ T8002]  ? validate_linkmsg+0x6fc/0x9c0
[  516.739216][ T8002]  br_dev_newlink+0x27/0x110
[  516.743847][ T8002]  ? br_changelink+0x1760/0x1760
[  516.748907][ T8002]  __rtnl_newlink+0x1173/0x1930
[  516.753966][ T8002]  ? rtnl_link_unregister+0x260/0x260
[  516.759908][ T8002]  rtnl_newlink+0x67/0xa0
[  516.764260][ T8002]  ? __rtnl_newlink+0x1930/0x1930
[  516.769752][ T8002]  rtnetlink_rcv_msg+0x3c7/0xe00
[  516.774994][ T8002]  ? rtnl_fill_vf+0x4a0/0x4a0
[  516.780128][ T8002]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  516.786529][ T8002]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  516.792889][ T8002]  netlink_rcv_skb+0x16b/0x440
[  516.797751][ T8002]  ? rtnl_fill_vf+0x4a0/0x4a0
[  516.802436][ T8002]  ? netlink_ack+0x1380/0x1380
[  516.807310][ T8002]  ? lock_sync+0x190/0x190
[  516.811839][ T8002]  ? netlink_deliver_tap+0x1a0/0xd00
[  516.817480][ T8002]  ? _copy_from_iter+0x2c1/0x10f0
[  516.822981][ T8002]  netlink_unicast+0x53b/0x810
[  516.828147][ T8002]  ? netlink_attachskb+0x880/0x880
[  516.833569][ T8002]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  516.840361][ T8002]  ? __phys_addr_symbol+0x30/0x70
[  516.845497][ T8002]  ? __check_object_size+0x323/0x730
[  516.851062][ T8002]  netlink_sendmsg+0x93c/0xe40
[  516.855852][ T8002]  ? netlink_unicast+0x810/0x810
[  516.861778][ T8002]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  516.867267][ T8002]  ? netlink_unicast+0x810/0x810
[  516.872637][ T8002]  __sock_sendmsg+0xd5/0x180
[  516.877397][ T8002]  ____sys_sendmsg+0x6ac/0x940
[  516.882360][ T8002]  ? copy_msghdr_from_user+0x10b/0x160
[  516.888374][ T8002]  ? kernel_sendmsg+0x50/0x50
[  516.893258][ T8002]  ? hlock_class+0x4e/0x130
[  516.897976][ T8002]  ? __lock_acquire+0x14e0/0x3b10
[  516.903107][ T8002]  ___sys_sendmsg+0x135/0x1d0
[  516.907814][ T8002]  ? do_recvmmsg+0x740/0x740
[  516.912630][ T8002]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  516.918824][ T8002]  ? find_held_lock+0x2d/0x110
[  516.923713][ T8002]  ? __fget_light+0x1fc/0x260
[  516.928839][ T8002]  __sys_sendmsg+0x117/0x1e0
[  516.933628][ T8002]  ? __sys_sendmsg_sock+0x30/0x30
[  516.938664][ T8002]  ? xfd_validate_state+0x5d/0x180
[  516.943976][ T8002]  ? syscall_enter_from_user_mode+0x7f/0x120
[  516.949971][ T8002]  do_syscall_64+0x40/0x110
[  516.954937][ T8002]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  516.961127][ T8002] RIP: 0033:0x7fb700fd30b9
[  516.965724][ T8002] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  516.985601][ T8002] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  516.994458][ T8002] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  517.002711][ T8002] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  517.010786][ T8002] RBP: 000000000007ddd2 R08: 0000000000000000 R09: 0000000000000006
[  517.019150][ T8002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  517.027214][ T8002] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  517.035370][ T8002]  </TASK>
[  517.041050][ T8002] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  517.105683][ T8002] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  517.115424][ T8002] CPU: 0 PID: 8002 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  517.126213][ T8002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  517.136612][ T8002] Call Trace:
[  517.139893][ T8002]  <TASK>
[  517.142907][ T8002]  dump_stack_lvl+0x125/0x1b0
[  517.147588][ T8002]  sysfs_warn_dup+0x7f/0xa0
[  517.152179][ T8002]  sysfs_create_dir_ns+0x249/0x2b0
[  517.157562][ T8002]  ? sysfs_create_mount_point+0xb0/0xb0
[  517.164798][ T8002]  ? spin_bug+0x1d0/0x1d0
[  517.169750][ T8002]  ? net_namespace+0x12/0x40
[  517.174470][ T8002]  ? device_namespace+0x8d/0xc0
[  517.179430][ T8002]  kobject_add_internal+0x2c8/0x970
[  517.184821][ T8002]  kobject_add+0x16f/0x240
[  517.189425][ T8002]  ? kset_create_and_add+0x190/0x190
[  517.194914][ T8002]  ? do_raw_spin_unlock+0x173/0x230
[  517.200131][ T8002]  ? kobject_put+0xbe/0x440
[  517.204750][ T8002]  ? device_add+0xc35/0x1aa0
[  517.209624][ T8002]  device_add+0x289/0x1aa0
[  517.214062][ T8002]  ? device_initialize+0x510/0x510
[  517.219181][ T8002]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  517.226046][ T8002]  ? __init_waitqueue_head+0xca/0x150
[  517.231526][ T8002]  netdev_register_kobject+0x183/0x3f0
[  517.237010][ T8002]  register_netdevice+0xbe6/0x14b0
[  517.242143][ T8002]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  517.248058][ T8002]  ? validate_linkmsg+0x6fc/0x9c0
[  517.253452][ T8002]  br_dev_newlink+0x27/0x110
[  517.258138][ T8002]  ? br_changelink+0x1760/0x1760
[  517.263431][ T8002]  __rtnl_newlink+0x1173/0x1930
[  517.268298][ T8002]  ? rtnl_link_unregister+0x260/0x260
[  517.273899][ T8002]  rtnl_newlink+0x67/0xa0
[  517.278445][ T8002]  ? __rtnl_newlink+0x1930/0x1930
[  517.284005][ T8002]  rtnetlink_rcv_msg+0x3c7/0xe00
[  517.288952][ T8002]  ? rtnl_fill_vf+0x4a0/0x4a0
[  517.293819][ T8002]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  517.299931][ T8002]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  517.306021][ T8002]  netlink_rcv_skb+0x16b/0x440
[  517.310800][ T8002]  ? rtnl_fill_vf+0x4a0/0x4a0
[  517.315608][ T8002]  ? netlink_ack+0x1380/0x1380
[  517.320547][ T8002]  ? lock_sync+0x190/0x190
[  517.325152][ T8002]  ? netlink_deliver_tap+0x1a0/0xd00
[  517.330544][ T8002]  ? _copy_from_iter+0x2c1/0x10f0
[  517.335752][ T8002]  netlink_unicast+0x53b/0x810
[  517.340526][ T8002]  ? netlink_attachskb+0x880/0x880
[  517.345907][ T8002]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  517.351906][ T8002]  ? __phys_addr_symbol+0x30/0x70
[  517.356937][ T8002]  ? __check_object_size+0x323/0x730
[  517.362578][ T8002]  netlink_sendmsg+0x93c/0xe40
[  517.367536][ T8002]  ? netlink_unicast+0x810/0x810
[  517.372753][ T8002]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  517.378052][ T8002]  ? netlink_unicast+0x810/0x810
[  517.383084][ T8002]  __sock_sendmsg+0xd5/0x180
[  517.387779][ T8002]  ____sys_sendmsg+0x6ac/0x940
[  517.392561][ T8002]  ? copy_msghdr_from_user+0x10b/0x160
[  517.398028][ T8002]  ? kernel_sendmsg+0x50/0x50
[  517.402816][ T8002]  ___sys_sendmsg+0x135/0x1d0
[  517.407529][ T8002]  ? do_recvmmsg+0x740/0x740
[  517.412130][ T8002]  ? find_held_lock+0x2d/0x110
[  517.417178][ T8002]  ? preempt_count_sub+0x160/0x160
[  517.422325][ T8002]  ? __fget_light+0x1fc/0x260
[  517.427547][ T8002]  __sys_sendmsg+0x117/0x1e0
[  517.432255][ T8002]  ? __sys_sendmsg_sock+0x30/0x30
[  517.437293][ T8002]  ? syscall_enter_from_user_mode+0x7f/0x120
[  517.443543][ T8002]  do_syscall_64+0x40/0x110
[  517.448227][ T8002]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  517.454564][ T8002] RIP: 0033:0x7fb700fd30b9
[  517.459239][ T8002] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  517.481046][ T8002] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  517.489651][ T8002] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  517.498597][ T8002] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  517.506744][ T8002] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  517.514719][ T8002] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  517.522692][ T8002] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  517.530789][ T8002]  </TASK>
[  517.538216][ T8002] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  517.611417][ T8003] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  517.621994][ T8003] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  517.631277][ T8003] CPU: 0 PID: 8003 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  517.641541][ T8003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  517.651864][ T8003] Call Trace:
[  517.655233][ T8003]  <TASK>
[  517.658162][ T8003]  dump_stack_lvl+0x125/0x1b0
[  517.663112][ T8003]  sysfs_warn_dup+0x7f/0xa0
[  517.667791][ T8003]  sysfs_create_dir_ns+0x249/0x2b0
[  517.672914][ T8003]  ? sysfs_create_mount_point+0xb0/0xb0
[  517.678479][ T8003]  ? spin_bug+0x1d0/0x1d0
[  517.682908][ T8003]  ? net_namespace+0x12/0x40
[  517.687594][ T8003]  ? device_namespace+0x8d/0xc0
[  517.692651][ T8003]  kobject_add_internal+0x2c8/0x970
[  517.698876][ T8003]  kobject_add+0x16f/0x240
[  517.703893][ T8003]  ? kset_create_and_add+0x190/0x190
[  517.709196][ T8003]  ? do_raw_spin_unlock+0x173/0x230
[  517.714484][ T8003]  ? kobject_put+0xbe/0x440
[  517.719089][ T8003]  ? device_add+0xc35/0x1aa0
[  517.723768][ T8003]  device_add+0x289/0x1aa0
[  517.728388][ T8003]  ? device_initialize+0x510/0x510
[  517.733507][ T8003]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  517.740501][ T8003]  ? __init_waitqueue_head+0xca/0x150
[  517.745882][ T8003]  netdev_register_kobject+0x183/0x3f0
[  517.751434][ T8003]  register_netdevice+0xbe6/0x14b0
[  517.756810][ T8003]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  517.763431][ T8003]  ? validate_linkmsg+0x6fc/0x9c0
[  517.769514][ T8003]  br_dev_newlink+0x27/0x110
[  517.775522][ T8003]  ? br_changelink+0x1760/0x1760
[  517.781104][ T8003]  __rtnl_newlink+0x1173/0x1930
[  517.787000][ T8003]  ? rtnl_link_unregister+0x260/0x260
[  517.792855][ T8003]  rtnl_newlink+0x67/0xa0
[  517.797456][ T8003]  ? __rtnl_newlink+0x1930/0x1930
[  517.803545][ T8003]  rtnetlink_rcv_msg+0x3c7/0xe00
[  517.808670][ T8003]  ? rtnl_fill_vf+0x4a0/0x4a0
[  517.814838][ T8003]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  517.822541][ T8003]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  517.828641][ T8003]  netlink_rcv_skb+0x16b/0x440
[  517.833637][ T8003]  ? rtnl_fill_vf+0x4a0/0x4a0
[  517.838586][ T8003]  ? netlink_ack+0x1380/0x1380
[  517.843637][ T8003]  ? lock_sync+0x190/0x190
[  517.848112][ T8003]  ? netlink_deliver_tap+0x1a0/0xd00
[  517.853841][ T8003]  ? _copy_from_iter+0x2c1/0x10f0
[  517.858969][ T8003]  netlink_unicast+0x53b/0x810
[  517.863926][ T8003]  ? netlink_attachskb+0x880/0x880
[  517.869129][ T8003]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  517.875213][ T8003]  ? __phys_addr_symbol+0x30/0x70
[  517.880288][ T8003]  ? __check_object_size+0x323/0x730
[  517.885771][ T8003]  netlink_sendmsg+0x93c/0xe40
[  517.890923][ T8003]  ? netlink_unicast+0x810/0x810
[  517.895905][ T8003]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  517.901571][ T8003]  ? netlink_unicast+0x810/0x810
[  517.906529][ T8003]  __sock_sendmsg+0xd5/0x180
[  517.911186][ T8003]  ____sys_sendmsg+0x6ac/0x940
[  517.915998][ T8003]  ? copy_msghdr_from_user+0x10b/0x160
[  517.921684][ T8003]  ? kernel_sendmsg+0x50/0x50
[  517.926723][ T8003]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  517.933016][ T8003]  ___sys_sendmsg+0x135/0x1d0
[  517.937922][ T8003]  ? do_recvmmsg+0x740/0x740
[  517.942618][ T8003]  ? find_held_lock+0x2d/0x110
[  517.947687][ T8003]  ? preempt_count_sub+0x160/0x160
[  517.953213][ T8003]  ? __fget_light+0x1fc/0x260
[  517.958009][ T8003]  __sys_sendmsg+0x117/0x1e0
[  517.963057][ T8003]  ? __sys_sendmsg_sock+0x30/0x30
[  517.968213][ T8003]  ? syscall_enter_from_user_mode+0x7f/0x120
[  517.974311][ T8003]  do_syscall_64+0x40/0x110
[  517.978929][ T8003]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  517.985132][ T8003] RIP: 0033:0x7fb700fd30b9
[  517.989822][ T8003] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  518.010288][ T8003] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  518.019144][ T8003] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  518.027213][ T8003] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  518.035272][ T8003] RBP: 000000000007e1b9 R08: 0000000000000000 R09: 0000000000000006
[  518.043373][ T8003] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  518.051723][ T8003] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  518.059881][ T8003]  </TASK>
[  518.065724][ T8003] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  518.116306][ T8003] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  518.125836][ T8003] CPU: 0 PID: 8003 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  518.135995][ T8003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  518.146236][ T8003] Call Trace:
[  518.149542][ T8003]  <TASK>
[  518.152473][ T8003]  dump_stack_lvl+0x125/0x1b0
[  518.157333][ T8003]  sysfs_warn_dup+0x7f/0xa0
[  518.161931][ T8003]  sysfs_create_dir_ns+0x249/0x2b0
[  518.167325][ T8003]  ? sysfs_create_mount_point+0xb0/0xb0
[  518.173156][ T8003]  ? spin_bug+0x1d0/0x1d0
[  518.177693][ T8003]  ? net_namespace+0x12/0x40
[  518.182448][ T8003]  ? device_namespace+0x8d/0xc0
[  518.187415][ T8003]  kobject_add_internal+0x2c8/0x970
[  518.192901][ T8003]  kobject_add+0x16f/0x240
[  518.197416][ T8003]  ? kset_create_and_add+0x190/0x190
[  518.202730][ T8003]  ? do_raw_spin_unlock+0x173/0x230
[  518.208035][ T8003]  ? kobject_put+0xbe/0x440
[  518.212629][ T8003]  ? device_add+0xc35/0x1aa0
[  518.217413][ T8003]  device_add+0x289/0x1aa0
[  518.222466][ T8003]  ? device_initialize+0x510/0x510
[  518.227860][ T8003]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  518.236073][ T8003]  ? __init_waitqueue_head+0xca/0x150
[  518.241534][ T8003]  netdev_register_kobject+0x183/0x3f0
[  518.247016][ T8003]  register_netdevice+0xbe6/0x14b0
[  518.252168][ T8003]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  518.258353][ T8003]  ? validate_linkmsg+0x6fc/0x9c0
[  518.263665][ T8003]  br_dev_newlink+0x27/0x110
[  518.268550][ T8003]  ? br_changelink+0x1760/0x1760
[  518.273764][ T8003]  __rtnl_newlink+0x1173/0x1930
[  518.279254][ T8003]  ? rtnl_link_unregister+0x260/0x260
[  518.284780][ T8003]  rtnl_newlink+0x67/0xa0
[  518.289531][ T8003]  ? __rtnl_newlink+0x1930/0x1930
[  518.294930][ T8003]  rtnetlink_rcv_msg+0x3c7/0xe00
[  518.299973][ T8003]  ? rtnl_fill_vf+0x4a0/0x4a0
[  518.304747][ T8003]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  518.310778][ T8003]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  518.316899][ T8003]  netlink_rcv_skb+0x16b/0x440
[  518.321782][ T8003]  ? rtnl_fill_vf+0x4a0/0x4a0
[  518.326742][ T8003]  ? netlink_ack+0x1380/0x1380
[  518.331877][ T8003]  ? lock_sync+0x190/0x190
[  518.336949][ T8003]  ? netlink_deliver_tap+0x1a0/0xd00
[  518.342788][ T8003]  ? _copy_from_iter+0x2c1/0x10f0
[  518.348255][ T8003]  netlink_unicast+0x53b/0x810
[  518.353335][ T8003]  ? netlink_attachskb+0x880/0x880
[  518.358628][ T8003]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  518.365312][ T8003]  ? __phys_addr_symbol+0x30/0x70
[  518.370354][ T8003]  ? __check_object_size+0x323/0x730
[  518.375646][ T8003]  netlink_sendmsg+0x93c/0xe40
[  518.380621][ T8003]  ? netlink_unicast+0x810/0x810
[  518.385695][ T8003]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  518.391086][ T8003]  ? netlink_unicast+0x810/0x810
[  518.396036][ T8003]  __sock_sendmsg+0xd5/0x180
[  518.400646][ T8003]  ____sys_sendmsg+0x6ac/0x940
[  518.405421][ T8003]  ? copy_msghdr_from_user+0x10b/0x160
[  518.410882][ T8003]  ? kernel_sendmsg+0x50/0x50
[  518.415678][ T8003]  ___sys_sendmsg+0x135/0x1d0
[  518.420456][ T8003]  ? do_recvmmsg+0x740/0x740
[  518.425400][ T8003]  ? find_held_lock+0x2d/0x110
[  518.430647][ T8003]  ? preempt_count_sub+0x160/0x160
[  518.436156][ T8003]  ? __fget_light+0x1fc/0x260
[  518.441279][ T8003]  __sys_sendmsg+0x117/0x1e0
[  518.446056][ T8003]  ? __sys_sendmsg_sock+0x30/0x30
[  518.451212][ T8003]  ? syscall_enter_from_user_mode+0x7f/0x120
[  518.457221][ T8003]  do_syscall_64+0x40/0x110
[  518.461824][ T8003]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  518.467817][ T8003] RIP: 0033:0x7fb700fd30b9
[  518.472343][ T8003] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  518.494076][ T8003] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  518.502686][ T8003] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  518.510778][ T8003] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  518.519857][ T8003] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  518.528464][ T8003] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  518.536534][ T8003] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  518.544956][ T8003]  </TASK>
[  518.548848][ T8003] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  518.623085][ T8004] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  518.634012][ T8004] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  518.643623][ T8004] CPU: 1 PID: 8004 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  518.653919][ T8004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  518.664180][ T8004] Call Trace:
[  518.667912][ T8004]  <TASK>
[  518.670841][ T8004]  dump_stack_lvl+0x125/0x1b0
[  518.675871][ T8004]  sysfs_warn_dup+0x7f/0xa0
[  518.680381][ T8004]  sysfs_create_dir_ns+0x249/0x2b0
[  518.685766][ T8004]  ? sysfs_create_mount_point+0xb0/0xb0
[  518.691405][ T8004]  ? spin_bug+0x1d0/0x1d0
[  518.695738][ T8004]  ? net_namespace+0x12/0x40
[  518.700367][ T8004]  ? device_namespace+0x8d/0xc0
[  518.705225][ T8004]  kobject_add_internal+0x2c8/0x970
[  518.710434][ T8004]  kobject_add+0x16f/0x240
[  518.715036][ T8004]  ? kset_create_and_add+0x190/0x190
[  518.720596][ T8004]  ? do_raw_spin_unlock+0x173/0x230
[  518.725795][ T8004]  ? kobject_put+0xbe/0x440
[  518.730396][ T8004]  ? device_add+0xc35/0x1aa0
[  518.734990][ T8004]  device_add+0x289/0x1aa0
[  518.739451][ T8004]  ? device_initialize+0x510/0x510
[  518.745156][ T8004]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  518.752365][ T8004]  ? __init_waitqueue_head+0xca/0x150
[  518.757748][ T8004]  netdev_register_kobject+0x183/0x3f0
[  518.763231][ T8004]  register_netdevice+0xbe6/0x14b0
[  518.768411][ T8004]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  518.774341][ T8004]  ? validate_linkmsg+0x6fc/0x9c0
[  518.779496][ T8004]  br_dev_newlink+0x27/0x110
[  518.784488][ T8004]  ? br_changelink+0x1760/0x1760
[  518.789566][ T8004]  __rtnl_newlink+0x1173/0x1930
[  518.794873][ T8004]  ? rtnl_link_unregister+0x260/0x260
[  518.800467][ T8004]  rtnl_newlink+0x67/0xa0
[  518.804832][ T8004]  ? __rtnl_newlink+0x1930/0x1930
[  518.810056][ T8004]  rtnetlink_rcv_msg+0x3c7/0xe00
[  518.815879][ T8004]  ? rtnl_fill_vf+0x4a0/0x4a0
[  518.820837][ T8004]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  518.827221][ T8004]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  518.833483][ T8004]  netlink_rcv_skb+0x16b/0x440
[  518.841138][ T8004]  ? rtnl_fill_vf+0x4a0/0x4a0
[  518.845914][ T8004]  ? netlink_ack+0x1380/0x1380
[  518.850958][ T8004]  ? lock_sync+0x190/0x190
[  518.855536][ T8004]  ? netlink_deliver_tap+0x1a0/0xd00
[  518.860933][ T8004]  ? _copy_from_iter+0x2c1/0x10f0
[  518.866071][ T8004]  netlink_unicast+0x53b/0x810
[  518.871023][ T8004]  ? netlink_attachskb+0x880/0x880
[  518.876397][ T8004]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  518.883478][ T8004]  ? __phys_addr_symbol+0x30/0x70
[  518.888621][ T8004]  ? __check_object_size+0x323/0x730
[  518.894054][ T8004]  netlink_sendmsg+0x93c/0xe40
[  518.899077][ T8004]  ? netlink_unicast+0x810/0x810
[  518.905477][ T8004]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  518.911152][ T8004]  ? netlink_unicast+0x810/0x810
[  518.917364][ T8004]  __sock_sendmsg+0xd5/0x180
[  518.922179][ T8004]  ____sys_sendmsg+0x6ac/0x940
[  518.927077][ T8004]  ? copy_msghdr_from_user+0x10b/0x160
[  518.932593][ T8004]  ? kernel_sendmsg+0x50/0x50
[  518.937745][ T8004]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  518.944792][ T8004]  ___sys_sendmsg+0x135/0x1d0
[  518.949916][ T8004]  ? do_recvmmsg+0x740/0x740
[  518.955202][ T8004]  ? find_held_lock+0x2d/0x110
[  518.960458][ T8004]  ? preempt_count_sub+0x160/0x160
[  518.965703][ T8004]  ? __fget_light+0x1fc/0x260
[  518.970742][ T8004]  __sys_sendmsg+0x117/0x1e0
[  518.976237][ T8004]  ? __sys_sendmsg_sock+0x30/0x30
[  518.981553][ T8004]  ? syscall_enter_from_user_mode+0x7f/0x120
[  518.987571][ T8004]  do_syscall_64+0x40/0x110
[  518.992184][ T8004]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  518.998096][ T8004] RIP: 0033:0x7fb700fd30b9
[  519.002638][ T8004] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  519.022630][ T8004] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  519.031148][ T8004] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  519.039126][ T8004] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  519.047272][ T8004] RBP: 000000000007e5be R08: 0000000000000000 R09: 0000000000000006
[  519.055245][ T8004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  519.063229][ T8004] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  519.071300][ T8004]  </TASK>
[  519.079272][ T8004] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  519.145781][ T8004] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  519.155160][ T8004] CPU: 0 PID: 8004 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  519.165314][ T8004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  519.175655][ T8004] Call Trace:
[  519.178966][ T8004]  <TASK>
[  519.181981][ T8004]  dump_stack_lvl+0x125/0x1b0
[  519.186761][ T8004]  sysfs_warn_dup+0x7f/0xa0
[  519.191383][ T8004]  sysfs_create_dir_ns+0x249/0x2b0
[  519.196589][ T8004]  ? sysfs_create_mount_point+0xb0/0xb0
[  519.202315][ T8004]  ? spin_bug+0x1d0/0x1d0
[  519.206735][ T8004]  ? net_namespace+0x12/0x40
[  519.211418][ T8004]  ? device_namespace+0x8d/0xc0
[  519.216480][ T8004]  kobject_add_internal+0x2c8/0x970
[  519.221904][ T8004]  kobject_add+0x16f/0x240
[  519.226555][ T8004]  ? kset_create_and_add+0x190/0x190
[  519.231952][ T8004]  ? do_raw_spin_unlock+0x173/0x230
[  519.237289][ T8004]  ? kobject_put+0xbe/0x440
[  519.241976][ T8004]  ? device_add+0xc35/0x1aa0
[  519.246585][ T8004]  device_add+0x289/0x1aa0
[  519.251018][ T8004]  ? device_initialize+0x510/0x510
[  519.256506][ T8004]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  519.263742][ T8004]  ? __init_waitqueue_head+0xca/0x150
[  519.269144][ T8004]  netdev_register_kobject+0x183/0x3f0
[  519.274800][ T8004]  register_netdevice+0xbe6/0x14b0
[  519.280048][ T8004]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  519.285966][ T8004]  ? validate_linkmsg+0x6fc/0x9c0
[  519.291177][ T8004]  br_dev_newlink+0x27/0x110
[  519.295777][ T8004]  ? br_changelink+0x1760/0x1760
[  519.301068][ T8004]  __rtnl_newlink+0x1173/0x1930
[  519.306120][ T8004]  ? rtnl_link_unregister+0x260/0x260
[  519.311922][ T8004]  rtnl_newlink+0x67/0xa0
[  519.316664][ T8004]  ? __rtnl_newlink+0x1930/0x1930
[  519.322067][ T8004]  rtnetlink_rcv_msg+0x3c7/0xe00
[  519.327026][ T8004]  ? rtnl_fill_vf+0x4a0/0x4a0
[  519.331802][ T8004]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  519.337968][ T8004]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  519.344410][ T8004]  netlink_rcv_skb+0x16b/0x440
[  519.349452][ T8004]  ? rtnl_fill_vf+0x4a0/0x4a0
[  519.354139][ T8004]  ? netlink_ack+0x1380/0x1380
[  519.359000][ T8004]  ? lock_sync+0x190/0x190
[  519.363532][ T8004]  ? netlink_deliver_tap+0x1a0/0xd00
[  519.368957][ T8004]  ? _copy_from_iter+0x2c1/0x10f0
[  519.374344][ T8004]  netlink_unicast+0x53b/0x810
[  519.379310][ T8004]  ? netlink_attachskb+0x880/0x880
[  519.384617][ T8004]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  519.390866][ T8004]  ? __phys_addr_symbol+0x30/0x70
[  519.396157][ T8004]  ? __check_object_size+0x323/0x730
[  519.401625][ T8004]  netlink_sendmsg+0x93c/0xe40
[  519.406488][ T8004]  ? netlink_unicast+0x810/0x810
[  519.411638][ T8004]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  519.417016][ T8004]  ? netlink_unicast+0x810/0x810
[  519.421971][ T8004]  __sock_sendmsg+0xd5/0x180
[  519.426569][ T8004]  ____sys_sendmsg+0x6ac/0x940
[  519.431438][ T8004]  ? copy_msghdr_from_user+0x10b/0x160
[  519.436909][ T8004]  ? kernel_sendmsg+0x50/0x50
[  519.441704][ T8004]  ___sys_sendmsg+0x135/0x1d0
[  519.446451][ T8004]  ? do_recvmmsg+0x740/0x740
[  519.451256][ T8004]  ? find_held_lock+0x2d/0x110
[  519.456057][ T8004]  ? preempt_count_sub+0x160/0x160
[  519.461813][ T8004]  ? __fget_light+0x1fc/0x260
[  519.466868][ T8004]  __sys_sendmsg+0x117/0x1e0
[  519.471834][ T8004]  ? __sys_sendmsg_sock+0x30/0x30
[  519.477150][ T8004]  ? syscall_enter_from_user_mode+0x7f/0x120
[  519.483938][ T8004]  do_syscall_64+0x40/0x110
[  519.488975][ T8004]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  519.495442][ T8004] RIP: 0033:0x7fb700fd30b9
[  519.500169][ T8004] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  519.523622][ T8004] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  519.532582][ T8004] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  519.540778][ T8004] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  519.549460][ T8004] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  519.557974][ T8004] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  519.566419][ T8004] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  519.574774][ T8004]  </TASK>
[  519.581122][ T8004] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  519.642741][ T8005] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  519.653509][ T8005] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  519.663088][ T8005] CPU: 1 PID: 8005 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  519.673826][ T8005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  519.684326][ T8005] Call Trace:
[  519.687608][ T8005]  <TASK>
[  519.690531][ T8005]  dump_stack_lvl+0x125/0x1b0
[  519.695487][ T8005]  sysfs_warn_dup+0x7f/0xa0
[  519.700522][ T8005]  sysfs_create_dir_ns+0x249/0x2b0
[  519.705930][ T8005]  ? sysfs_create_mount_point+0xb0/0xb0
[  519.711605][ T8005]  ? spin_bug+0x1d0/0x1d0
[  519.716437][ T8005]  ? net_namespace+0x12/0x40
[  519.721188][ T8005]  ? device_namespace+0x8d/0xc0
[  519.726613][ T8005]  kobject_add_internal+0x2c8/0x970
[  519.731842][ T8005]  kobject_add+0x16f/0x240
[  519.736365][ T8005]  ? kset_create_and_add+0x190/0x190
[  519.741749][ T8005]  ? do_raw_spin_unlock+0x173/0x230
[  519.747367][ T8005]  ? kobject_put+0xbe/0x440
[  519.751923][ T8005]  ? device_add+0xc35/0x1aa0
[  519.756858][ T8005]  device_add+0x289/0x1aa0
[  519.762121][ T8005]  ? device_initialize+0x510/0x510
[  519.767938][ T8005]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  519.775087][ T8005]  ? __init_waitqueue_head+0xca/0x150
[  519.780859][ T8005]  netdev_register_kobject+0x183/0x3f0
[  519.786450][ T8005]  register_netdevice+0xbe6/0x14b0
[  519.791750][ T8005]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  519.798012][ T8005]  ? validate_linkmsg+0x6fc/0x9c0
[  519.803329][ T8005]  br_dev_newlink+0x27/0x110
[  519.808019][ T8005]  ? br_changelink+0x1760/0x1760
[  519.813138][ T8005]  __rtnl_newlink+0x1173/0x1930
[  519.818216][ T8005]  ? rtnl_link_unregister+0x260/0x260
[  519.823824][ T8005]  rtnl_newlink+0x67/0xa0
[  519.828808][ T8005]  ? __rtnl_newlink+0x1930/0x1930
[  519.834141][ T8005]  rtnetlink_rcv_msg+0x3c7/0xe00
[  519.839233][ T8005]  ? rtnl_fill_vf+0x4a0/0x4a0
[  519.844534][ T8005]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  519.852019][ T8005]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  519.858322][ T8005]  netlink_rcv_skb+0x16b/0x440
[  519.863825][ T8005]  ? rtnl_fill_vf+0x4a0/0x4a0
[  519.868724][ T8005]  ? netlink_ack+0x1380/0x1380
[  519.873704][ T8005]  ? lock_sync+0x190/0x190
[  519.878422][ T8005]  ? netlink_deliver_tap+0x1a0/0xd00
[  519.883750][ T8005]  ? _copy_from_iter+0x2c1/0x10f0
[  519.888894][ T8005]  netlink_unicast+0x53b/0x810
[  519.893697][ T8005]  ? netlink_attachskb+0x880/0x880
[  519.898827][ T8005]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  519.907424][ T8005]  ? __phys_addr_symbol+0x30/0x70
[  519.912546][ T8005]  ? __check_object_size+0x323/0x730
[  519.918120][ T8005]  netlink_sendmsg+0x93c/0xe40
[  519.923355][ T8005]  ? netlink_unicast+0x810/0x810
[  519.929270][ T8005]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  519.934913][ T8005]  ? netlink_unicast+0x810/0x810
[  519.940472][ T8005]  __sock_sendmsg+0xd5/0x180
[  519.945358][ T8005]  ____sys_sendmsg+0x6ac/0x940
[  519.950410][ T8005]  ? copy_msghdr_from_user+0x10b/0x160
[  519.956064][ T8005]  ? kernel_sendmsg+0x50/0x50
[  519.960892][ T8005]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  519.967165][ T8005]  ___sys_sendmsg+0x135/0x1d0
[  519.972069][ T8005]  ? do_recvmmsg+0x740/0x740
[  519.976669][ T8005]  ? find_held_lock+0x2d/0x110
[  519.981471][ T8005]  ? preempt_count_sub+0x160/0x160
[  519.986733][ T8005]  ? __fget_light+0x1fc/0x260
[  519.991608][ T8005]  __sys_sendmsg+0x117/0x1e0
[  519.996389][ T8005]  ? __sys_sendmsg_sock+0x30/0x30
[  520.001818][ T8005]  ? syscall_enter_from_user_mode+0x7f/0x120
[  520.008004][ T8005]  do_syscall_64+0x40/0x110
[  520.012801][ T8005]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  520.018735][ T8005] RIP: 0033:0x7fb700fd30b9
[  520.023163][ T8005] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  520.042865][ T8005] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  520.051462][ T8005] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  520.059786][ T8005] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  520.067844][ T8005] RBP: 000000000007e9b2 R08: 0000000000000000 R09: 0000000000000006
[  520.075837][ T8005] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  520.084161][ T8005] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  520.092543][ T8005]  </TASK>
[  520.097427][ T8005] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  520.166006][ T8005] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  520.175843][ T8005] CPU: 0 PID: 8005 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  520.186177][ T8005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  520.196494][ T8005] Call Trace:
[  520.199788][ T8005]  <TASK>
[  520.202733][ T8005]  dump_stack_lvl+0x125/0x1b0
[  520.207534][ T8005]  sysfs_warn_dup+0x7f/0xa0
[  520.212514][ T8005]  sysfs_create_dir_ns+0x249/0x2b0
[  520.217910][ T8005]  ? sysfs_create_mount_point+0xb0/0xb0
[  520.223469][ T8005]  ? spin_bug+0x1d0/0x1d0
[  520.227975][ T8005]  ? net_namespace+0x12/0x40
[  520.232574][ T8005]  ? device_namespace+0x8d/0xc0
[  520.237699][ T8005]  kobject_add_internal+0x2c8/0x970
[  520.243093][ T8005]  kobject_add+0x16f/0x240
[  520.247611][ T8005]  ? kset_create_and_add+0x190/0x190
[  520.252902][ T8005]  ? do_raw_spin_unlock+0x173/0x230
[  520.258204][ T8005]  ? kobject_put+0xbe/0x440
[  520.262888][ T8005]  ? device_add+0xc35/0x1aa0
[  520.267766][ T8005]  device_add+0x289/0x1aa0
[  520.272213][ T8005]  ? device_initialize+0x510/0x510
[  520.277540][ T8005]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  520.284444][ T8005]  ? __init_waitqueue_head+0xca/0x150
[  520.289965][ T8005]  netdev_register_kobject+0x183/0x3f0
[  520.295539][ T8005]  register_netdevice+0xbe6/0x14b0
[  520.300933][ T8005]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  520.307030][ T8005]  ? validate_linkmsg+0x6fc/0x9c0
[  520.312111][ T8005]  br_dev_newlink+0x27/0x110
[  520.316812][ T8005]  ? br_changelink+0x1760/0x1760
[  520.321762][ T8005]  __rtnl_newlink+0x1173/0x1930
[  520.326751][ T8005]  ? rtnl_link_unregister+0x260/0x260
[  520.332255][ T8005]  rtnl_newlink+0x67/0xa0
[  520.336625][ T8005]  ? __rtnl_newlink+0x1930/0x1930
[  520.341782][ T8005]  rtnetlink_rcv_msg+0x3c7/0xe00
[  520.346911][ T8005]  ? rtnl_fill_vf+0x4a0/0x4a0
[  520.351771][ T8005]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  520.357777][ T8005]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  520.363887][ T8005]  netlink_rcv_skb+0x16b/0x440
[  520.368952][ T8005]  ? rtnl_fill_vf+0x4a0/0x4a0
[  520.373651][ T8005]  ? netlink_ack+0x1380/0x1380
[  520.378619][ T8005]  ? lock_sync+0x190/0x190
[  520.383305][ T8005]  ? netlink_deliver_tap+0x1a0/0xd00
[  520.388962][ T8005]  ? _copy_from_iter+0x2c1/0x10f0
[  520.394008][ T8005]  netlink_unicast+0x53b/0x810
[  520.398908][ T8005]  ? netlink_attachskb+0x880/0x880
[  520.404134][ T8005]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  520.410308][ T8005]  ? __phys_addr_symbol+0x30/0x70
[  520.415522][ T8005]  ? __check_object_size+0x323/0x730
[  520.421031][ T8005]  netlink_sendmsg+0x93c/0xe40
[  520.425911][ T8005]  ? netlink_unicast+0x810/0x810
[  520.430968][ T8005]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  520.436625][ T8005]  ? netlink_unicast+0x810/0x810
[  520.442014][ T8005]  __sock_sendmsg+0xd5/0x180
[  520.446726][ T8005]  ____sys_sendmsg+0x6ac/0x940
[  520.451679][ T8005]  ? copy_msghdr_from_user+0x10b/0x160
[  520.457270][ T8005]  ? kernel_sendmsg+0x50/0x50
[  520.462069][ T8005]  ___sys_sendmsg+0x135/0x1d0
[  520.466947][ T8005]  ? do_recvmmsg+0x740/0x740
[  520.471818][ T8005]  ? find_held_lock+0x2d/0x110
[  520.476682][ T8005]  ? preempt_count_sub+0x160/0x160
[  520.482168][ T8005]  ? __fget_light+0x1fc/0x260
[  520.486866][ T8005]  __sys_sendmsg+0x117/0x1e0
[  520.491814][ T8005]  ? __sys_sendmsg_sock+0x30/0x30
[  520.497049][ T8005]  ? syscall_enter_from_user_mode+0x7f/0x120
[  520.503230][ T8005]  do_syscall_64+0x40/0x110
[  520.507778][ T8005]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  520.513868][ T8005] RIP: 0033:0x7fb700fd30b9
[  520.518382][ T8005] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  520.538878][ T8005] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  520.547740][ T8005] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  520.556591][ T8005] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  520.564820][ T8005] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  520.572874][ T8005] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  520.581040][ T8005] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  520.589219][ T8005]  </TASK>
[  520.593214][ T8005] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  520.659292][ T8006] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  520.669679][ T8006] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  520.679041][ T8006] CPU: 0 PID: 8006 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  520.689335][ T8006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  520.699585][ T8006] Call Trace:
[  520.702885][ T8006]  <TASK>
[  520.705912][ T8006]  dump_stack_lvl+0x125/0x1b0
[  520.710769][ T8006]  sysfs_warn_dup+0x7f/0xa0
[  520.715528][ T8006]  sysfs_create_dir_ns+0x249/0x2b0
[  520.720725][ T8006]  ? sysfs_create_mount_point+0xb0/0xb0
[  520.726365][ T8006]  ? spin_bug+0x1d0/0x1d0
[  520.730786][ T8006]  ? net_namespace+0x12/0x40
[  520.735460][ T8006]  ? device_namespace+0x8d/0xc0
[  520.740407][ T8006]  kobject_add_internal+0x2c8/0x970
[  520.746051][ T8006]  kobject_add+0x16f/0x240
[  520.750486][ T8006]  ? kset_create_and_add+0x190/0x190
[  520.755793][ T8006]  ? do_raw_spin_unlock+0x173/0x230
[  520.761616][ T8006]  ? kobject_put+0xbe/0x440
[  520.766225][ T8006]  ? device_add+0xc35/0x1aa0
[  520.770915][ T8006]  device_add+0x289/0x1aa0
[  520.775510][ T8006]  ? device_initialize+0x510/0x510
[  520.780813][ T8006]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  520.788115][ T8006]  ? __init_waitqueue_head+0xca/0x150
[  520.793769][ T8006]  netdev_register_kobject+0x183/0x3f0
[  520.799248][ T8006]  register_netdevice+0xbe6/0x14b0
[  520.804394][ T8006]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  520.810296][ T8006]  ? validate_linkmsg+0x6fc/0x9c0
[  520.815730][ T8006]  br_dev_newlink+0x27/0x110
[  520.820461][ T8006]  ? br_changelink+0x1760/0x1760
[  520.825670][ T8006]  __rtnl_newlink+0x1173/0x1930
[  520.830641][ T8006]  ? rtnl_link_unregister+0x260/0x260
[  520.836149][ T8006]  rtnl_newlink+0x67/0xa0
[  520.840483][ T8006]  ? __rtnl_newlink+0x1930/0x1930
[  520.845530][ T8006]  rtnetlink_rcv_msg+0x3c7/0xe00
[  520.850645][ T8006]  ? rtnl_fill_vf+0x4a0/0x4a0
[  520.855639][ T8006]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  520.861640][ T8006]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  520.867733][ T8006]  netlink_rcv_skb+0x16b/0x440
[  520.872504][ T8006]  ? rtnl_fill_vf+0x4a0/0x4a0
[  520.877181][ T8006]  ? netlink_ack+0x1380/0x1380
[  520.881948][ T8006]  ? lock_sync+0x190/0x190
[  520.886408][ T8006]  ? netlink_deliver_tap+0x1a0/0xd00
[  520.891702][ T8006]  ? _copy_from_iter+0x2c1/0x10f0
[  520.896746][ T8006]  netlink_unicast+0x53b/0x810
[  520.901626][ T8006]  ? netlink_attachskb+0x880/0x880
[  520.906935][ T8006]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  520.912852][ T8006]  ? __phys_addr_symbol+0x30/0x70
[  520.917891][ T8006]  ? __check_object_size+0x323/0x730
[  520.923370][ T8006]  netlink_sendmsg+0x93c/0xe40
[  520.928317][ T8006]  ? netlink_unicast+0x810/0x810
[  520.933258][ T8006]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  520.938544][ T8006]  ? netlink_unicast+0x810/0x810
[  520.943610][ T8006]  __sock_sendmsg+0xd5/0x180
[  520.948290][ T8006]  ____sys_sendmsg+0x6ac/0x940
[  520.953075][ T8006]  ? copy_msghdr_from_user+0x10b/0x160
[  520.958762][ T8006]  ? kernel_sendmsg+0x50/0x50
[  520.963462][ T8006]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  520.969485][ T8006]  ___sys_sendmsg+0x135/0x1d0
[  520.974431][ T8006]  ? do_recvmmsg+0x740/0x740
[  520.979116][ T8006]  ? find_held_lock+0x2d/0x110
[  520.983983][ T8006]  ? preempt_count_sub+0x160/0x160
[  520.989653][ T8006]  ? __fget_light+0x1fc/0x260
[  520.994418][ T8006]  __sys_sendmsg+0x117/0x1e0
[  520.999014][ T8006]  ? __sys_sendmsg_sock+0x30/0x30
[  521.004227][ T8006]  ? syscall_enter_from_user_mode+0x7f/0x120
[  521.010485][ T8006]  do_syscall_64+0x40/0x110
[  521.015783][ T8006]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  521.021861][ T8006] RIP: 0033:0x7fb700fd30b9
[  521.026456][ T8006] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  521.046434][ T8006] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  521.055089][ T8006] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  521.064277][ T8006] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  521.072525][ T8006] RBP: 000000000007edad R08: 0000000000000000 R09: 0000000000000006
[  521.081100][ T8006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  521.089268][ T8006] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  521.097801][ T8006]  </TASK>
[  521.101144][ T8006] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  521.156221][ T8006] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  521.165607][ T8006] CPU: 1 PID: 8006 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  521.175966][ T8006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  521.186028][ T8006] Call Trace:
[  521.189496][ T8006]  <TASK>
[  521.192695][ T8006]  dump_stack_lvl+0x125/0x1b0
[  521.197379][ T8006]  sysfs_warn_dup+0x7f/0xa0
[  521.201888][ T8006]  sysfs_create_dir_ns+0x249/0x2b0
[  521.207173][ T8006]  ? sysfs_create_mount_point+0xb0/0xb0
[  521.212735][ T8006]  ? spin_bug+0x1d0/0x1d0
[  521.217145][ T8006]  ? net_namespace+0x12/0x40
[  521.221738][ T8006]  ? device_namespace+0x8d/0xc0
[  521.226724][ T8006]  kobject_add_internal+0x2c8/0x970
[  521.232134][ T8006]  kobject_add+0x16f/0x240
[  521.236653][ T8006]  ? kset_create_and_add+0x190/0x190
[  521.242116][ T8006]  ? do_raw_spin_unlock+0x173/0x230
[  521.247500][ T8006]  ? kobject_put+0xbe/0x440
[  521.252109][ T8006]  ? device_add+0xc35/0x1aa0
[  521.257141][ T8006]  device_add+0x289/0x1aa0
[  521.261739][ T8006]  ? device_initialize+0x510/0x510
[  521.267314][ T8006]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  521.274453][ T8006]  ? __init_waitqueue_head+0xca/0x150
[  521.279842][ T8006]  netdev_register_kobject+0x183/0x3f0
[  521.285598][ T8006]  register_netdevice+0xbe6/0x14b0
[  521.291342][ T8006]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  521.297433][ T8006]  ? validate_linkmsg+0x6fc/0x9c0
[  521.303337][ T8006]  br_dev_newlink+0x27/0x110
[  521.308121][ T8006]  ? br_changelink+0x1760/0x1760
[  521.313757][ T8006]  __rtnl_newlink+0x1173/0x1930
[  521.318987][ T8006]  ? rtnl_link_unregister+0x260/0x260
[  521.324510][ T8006]  rtnl_newlink+0x67/0xa0
[  521.328870][ T8006]  ? __rtnl_newlink+0x1930/0x1930
[  521.334192][ T8006]  rtnetlink_rcv_msg+0x3c7/0xe00
[  521.339505][ T8006]  ? rtnl_fill_vf+0x4a0/0x4a0
[  521.344194][ T8006]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  521.350617][ T8006]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  521.356630][ T8006]  netlink_rcv_skb+0x16b/0x440
[  521.361582][ T8006]  ? rtnl_fill_vf+0x4a0/0x4a0
[  521.366626][ T8006]  ? netlink_ack+0x1380/0x1380
[  521.371400][ T8006]  ? lock_sync+0x190/0x190
[  521.375868][ T8006]  ? netlink_deliver_tap+0x1a0/0xd00
[  521.381456][ T8006]  ? _copy_from_iter+0x2c1/0x10f0
[  521.386601][ T8006]  netlink_unicast+0x53b/0x810
[  521.391697][ T8006]  ? netlink_attachskb+0x880/0x880
[  521.397613][ T8006]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  521.403519][ T8006]  ? __phys_addr_symbol+0x30/0x70
[  521.408551][ T8006]  ? __check_object_size+0x323/0x730
[  521.413934][ T8006]  netlink_sendmsg+0x93c/0xe40
[  521.418887][ T8006]  ? netlink_unicast+0x810/0x810
[  521.424111][ T8006]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  521.429660][ T8006]  ? netlink_unicast+0x810/0x810
[  521.434608][ T8006]  __sock_sendmsg+0xd5/0x180
[  521.439326][ T8006]  ____sys_sendmsg+0x6ac/0x940
[  521.444371][ T8006]  ? copy_msghdr_from_user+0x10b/0x160
[  521.449929][ T8006]  ? kernel_sendmsg+0x50/0x50
[  521.454704][ T8006]  ? hlock_class+0x4e/0x130
[  521.459397][ T8006]  ? __lock_acquire+0x14e0/0x3b10
[  521.464608][ T8006]  ___sys_sendmsg+0x135/0x1d0
[  521.469767][ T8006]  ? do_recvmmsg+0x740/0x740
[  521.474457][ T8006]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  521.480530][ T8006]  ? find_held_lock+0x2d/0x110
[  521.485672][ T8006]  ? __fget_light+0x1fc/0x260
[  521.490450][ T8006]  __sys_sendmsg+0x117/0x1e0
[  521.495568][ T8006]  ? __sys_sendmsg_sock+0x30/0x30
[  521.500595][ T8006]  ? xfd_validate_state+0x5d/0x180
[  521.505906][ T8006]  ? syscall_enter_from_user_mode+0x7f/0x120
[  521.511908][ T8006]  do_syscall_64+0x40/0x110
[  521.516600][ T8006]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  521.522678][ T8006] RIP: 0033:0x7fb700fd30b9
[  521.527207][ T8006] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  521.547558][ T8006] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  521.556610][ T8006] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  521.564862][ T8006] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  521.573097][ T8006] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  521.581427][ T8006] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  521.589778][ T8006] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  521.598294][ T8006]  </TASK>
[  521.602542][ T8006] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  521.680872][ T8007] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  521.692244][ T8007] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  521.701831][ T8007] CPU: 0 PID: 8007 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  521.712281][ T8007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  521.722830][ T8007] Call Trace:
[  521.726302][ T8007]  <TASK>
[  521.729277][ T8007]  dump_stack_lvl+0x125/0x1b0
[  521.734136][ T8007]  sysfs_warn_dup+0x7f/0xa0
[  521.738733][ T8007]  sysfs_create_dir_ns+0x249/0x2b0
[  521.744552][ T8007]  ? sysfs_create_mount_point+0xb0/0xb0
[  521.750178][ T8007]  ? spin_bug+0x1d0/0x1d0
[  521.754784][ T8007]  ? net_namespace+0x12/0x40
[  521.759401][ T8007]  ? device_namespace+0x8d/0xc0
[  521.764455][ T8007]  kobject_add_internal+0x2c8/0x970
[  521.769850][ T8007]  kobject_add+0x16f/0x240
[  521.774281][ T8007]  ? kset_create_and_add+0x190/0x190
[  521.779933][ T8007]  ? do_raw_spin_unlock+0x173/0x230
[  521.785239][ T8007]  ? kobject_put+0xbe/0x440
[  521.789746][ T8007]  ? device_add+0xc35/0x1aa0
[  521.794711][ T8007]  device_add+0x289/0x1aa0
[  521.799155][ T8007]  ? device_initialize+0x510/0x510
[  521.804366][ T8007]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  521.811497][ T8007]  ? __init_waitqueue_head+0xca/0x150
[  521.816988][ T8007]  netdev_register_kobject+0x183/0x3f0
[  521.822823][ T8007]  register_netdevice+0xbe6/0x14b0
[  521.828381][ T8007]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  521.834466][ T8007]  ? validate_linkmsg+0x6fc/0x9c0
[  521.839508][ T8007]  br_dev_newlink+0x27/0x110
[  521.844104][ T8007]  ? br_changelink+0x1760/0x1760
[  521.849043][ T8007]  __rtnl_newlink+0x1173/0x1930
[  521.854002][ T8007]  ? rtnl_link_unregister+0x260/0x260
[  521.859763][ T8007]  rtnl_newlink+0x67/0xa0
[  521.864188][ T8007]  ? __rtnl_newlink+0x1930/0x1930
[  521.869225][ T8007]  rtnetlink_rcv_msg+0x3c7/0xe00
[  521.874247][ T8007]  ? rtnl_fill_vf+0x4a0/0x4a0
[  521.879109][ T8007]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  521.885456][ T8007]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  521.891456][ T8007]  netlink_rcv_skb+0x16b/0x440
[  521.896229][ T8007]  ? rtnl_fill_vf+0x4a0/0x4a0
[  521.900922][ T8007]  ? netlink_ack+0x1380/0x1380
[  521.905785][ T8007]  ? lock_sync+0x190/0x190
[  521.910309][ T8007]  ? netlink_deliver_tap+0x1a0/0xd00
[  521.915782][ T8007]  ? _copy_from_iter+0x2c1/0x10f0
[  521.920921][ T8007]  netlink_unicast+0x53b/0x810
[  521.926067][ T8007]  ? netlink_attachskb+0x880/0x880
[  521.931290][ T8007]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  521.937193][ T8007]  ? __phys_addr_symbol+0x30/0x70
[  521.942312][ T8007]  ? __check_object_size+0x323/0x730
[  521.947708][ T8007]  netlink_sendmsg+0x93c/0xe40
[  521.952625][ T8007]  ? netlink_unicast+0x810/0x810
[  521.957659][ T8007]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  521.963139][ T8007]  ? netlink_unicast+0x810/0x810
[  521.968374][ T8007]  __sock_sendmsg+0xd5/0x180
[  521.973153][ T8007]  ____sys_sendmsg+0x6ac/0x940
[  521.978010][ T8007]  ? copy_msghdr_from_user+0x10b/0x160
[  521.983774][ T8007]  ? kernel_sendmsg+0x50/0x50
[  521.988826][ T8007]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  521.994825][ T8007]  ___sys_sendmsg+0x135/0x1d0
[  521.999534][ T8007]  ? do_recvmmsg+0x740/0x740
[  522.004161][ T8007]  ? find_held_lock+0x2d/0x110
[  522.009036][ T8007]  ? preempt_count_sub+0x160/0x160
[  522.014258][ T8007]  ? __fget_light+0x1fc/0x260
[  522.019309][ T8007]  __sys_sendmsg+0x117/0x1e0
[  522.024101][ T8007]  ? __sys_sendmsg_sock+0x30/0x30
[  522.029343][ T8007]  ? syscall_enter_from_user_mode+0x7f/0x120
[  522.035370][ T8007]  do_syscall_64+0x40/0x110
[  522.039969][ T8007]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  522.045910][ T8007] RIP: 0033:0x7fb700fd30b9
[  522.050327][ T8007] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  522.070636][ T8007] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  522.079426][ T8007] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  522.087581][ T8007] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  522.095718][ T8007] RBP: 000000000007f1a6 R08: 0000000000000000 R09: 0000000000000006
[  522.104172][ T8007] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  522.112346][ T8007] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  522.120966][ T8007]  </TASK>
[  522.125075][ T8007] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  522.195985][ T8007] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  522.205731][ T8007] CPU: 0 PID: 8007 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  522.216396][ T8007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  522.226658][ T8007] Call Trace:
[  522.230032][ T8007]  <TASK>
[  522.233134][ T8007]  dump_stack_lvl+0x125/0x1b0
[  522.237920][ T8007]  sysfs_warn_dup+0x7f/0xa0
[  522.242793][ T8007]  sysfs_create_dir_ns+0x249/0x2b0
[  522.248510][ T8007]  ? sysfs_create_mount_point+0xb0/0xb0
[  522.254177][ T8007]  ? spin_bug+0x1d0/0x1d0
[  522.258519][ T8007]  ? net_namespace+0x12/0x40
[  522.263203][ T8007]  ? device_namespace+0x8d/0xc0
[  522.268247][ T8007]  kobject_add_internal+0x2c8/0x970
[  522.274159][ T8007]  kobject_add+0x16f/0x240
[  522.278691][ T8007]  ? kset_create_and_add+0x190/0x190
[  522.284083][ T8007]  ? do_raw_spin_unlock+0x173/0x230
[  522.289309][ T8007]  ? kobject_put+0xbe/0x440
[  522.293995][ T8007]  ? device_add+0xc35/0x1aa0
[  522.298678][ T8007]  device_add+0x289/0x1aa0
[  522.303281][ T8007]  ? device_initialize+0x510/0x510
[  522.308394][ T8007]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  522.315875][ T8007]  ? __init_waitqueue_head+0xca/0x150
[  522.321268][ T8007]  netdev_register_kobject+0x183/0x3f0
[  522.326748][ T8007]  register_netdevice+0xbe6/0x14b0
[  522.332048][ T8007]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  522.338040][ T8007]  ? validate_linkmsg+0x6fc/0x9c0
[  522.343162][ T8007]  br_dev_newlink+0x27/0x110
[  522.347761][ T8007]  ? br_changelink+0x1760/0x1760
[  522.352880][ T8007]  __rtnl_newlink+0x1173/0x1930
[  522.357922][ T8007]  ? rtnl_link_unregister+0x260/0x260
[  522.363502][ T8007]  rtnl_newlink+0x67/0xa0
[  522.367929][ T8007]  ? __rtnl_newlink+0x1930/0x1930
[  522.373152][ T8007]  rtnetlink_rcv_msg+0x3c7/0xe00
[  522.378104][ T8007]  ? rtnl_fill_vf+0x4a0/0x4a0
[  522.382803][ T8007]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  522.389056][ T8007]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  522.395616][ T8007]  netlink_rcv_skb+0x16b/0x440
[  522.400511][ T8007]  ? rtnl_fill_vf+0x4a0/0x4a0
[  522.405302][ T8007]  ? netlink_ack+0x1380/0x1380
[  522.410512][ T8007]  ? lock_sync+0x190/0x190
[  522.415154][ T8007]  ? netlink_deliver_tap+0x1a0/0xd00
[  522.420450][ T8007]  ? _copy_from_iter+0x2c1/0x10f0
[  522.425491][ T8007]  netlink_unicast+0x53b/0x810
[  522.430447][ T8007]  ? netlink_attachskb+0x880/0x880
[  522.435946][ T8007]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  522.442843][ T8007]  ? __phys_addr_symbol+0x30/0x70
[  522.448158][ T8007]  ? __check_object_size+0x323/0x730
[  522.453563][ T8007]  netlink_sendmsg+0x93c/0xe40
[  522.458713][ T8007]  ? netlink_unicast+0x810/0x810
[  522.463958][ T8007]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  522.469451][ T8007]  ? netlink_unicast+0x810/0x810
[  522.474412][ T8007]  __sock_sendmsg+0xd5/0x180
[  522.479207][ T8007]  ____sys_sendmsg+0x6ac/0x940
[  522.484011][ T8007]  ? copy_msghdr_from_user+0x10b/0x160
[  522.489579][ T8007]  ? kernel_sendmsg+0x50/0x50
[  522.494367][ T8007]  ___sys_sendmsg+0x135/0x1d0
[  522.499211][ T8007]  ? do_recvmmsg+0x740/0x740
[  522.503983][ T8007]  ? find_held_lock+0x2d/0x110
[  522.509114][ T8007]  ? preempt_count_sub+0x160/0x160
[  522.514505][ T8007]  ? __fget_light+0x1fc/0x260
[  522.519274][ T8007]  __sys_sendmsg+0x117/0x1e0
[  522.523963][ T8007]  ? __sys_sendmsg_sock+0x30/0x30
[  522.529009][ T8007]  ? syscall_enter_from_user_mode+0x7f/0x120
[  522.535436][ T8007]  do_syscall_64+0x40/0x110
[  522.539943][ T8007]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  522.545853][ T8007] RIP: 0033:0x7fb700fd30b9
[  522.550358][ T8007] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  522.570683][ T8007] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  522.579108][ T8007] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  522.587079][ T8007] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  522.595140][ T8007] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  522.603109][ T8007] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  522.611189][ T8007] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  522.620478][ T8007]  </TASK>
[  522.625552][ T8007] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  522.680728][ T8008] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  522.691478][ T8008] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  522.701187][ T8008] CPU: 0 PID: 8008 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  522.711806][ T8008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  522.722329][ T8008] Call Trace:
[  522.725876][ T8008]  <TASK>
[  522.728815][ T8008]  dump_stack_lvl+0x125/0x1b0
[  522.733586][ T8008]  sysfs_warn_dup+0x7f/0xa0
[  522.738274][ T8008]  sysfs_create_dir_ns+0x249/0x2b0
[  522.743559][ T8008]  ? sysfs_create_mount_point+0xb0/0xb0
[  522.749102][ T8008]  ? spin_bug+0x1d0/0x1d0
[  522.753700][ T8008]  ? net_namespace+0x12/0x40
[  522.758307][ T8008]  ? device_namespace+0x8d/0xc0
[  522.763172][ T8008]  kobject_add_internal+0x2c8/0x970
[  522.768563][ T8008]  kobject_add+0x16f/0x240
[  522.773076][ T8008]  ? kset_create_and_add+0x190/0x190
[  522.778550][ T8008]  ? do_raw_spin_unlock+0x173/0x230
[  522.783957][ T8008]  ? kobject_put+0xbe/0x440
[  522.788662][ T8008]  ? device_add+0xc35/0x1aa0
[  522.793260][ T8008]  device_add+0x289/0x1aa0
[  522.797859][ T8008]  ? device_initialize+0x510/0x510
[  522.803329][ T8008]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  522.810448][ T8008]  ? __init_waitqueue_head+0xca/0x150
[  522.816055][ T8008]  netdev_register_kobject+0x183/0x3f0
[  522.821923][ T8008]  register_netdevice+0xbe6/0x14b0
[  522.827064][ T8008]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  522.833140][ T8008]  ? validate_linkmsg+0x6fc/0x9c0
[  522.838543][ T8008]  br_dev_newlink+0x27/0x110
[  522.843333][ T8008]  ? br_changelink+0x1760/0x1760
[  522.848362][ T8008]  __rtnl_newlink+0x1173/0x1930
[  522.853580][ T8008]  ? rtnl_link_unregister+0x260/0x260
[  522.859196][ T8008]  rtnl_newlink+0x67/0xa0
[  522.863535][ T8008]  ? __rtnl_newlink+0x1930/0x1930
[  522.868742][ T8008]  rtnetlink_rcv_msg+0x3c7/0xe00
[  522.873876][ T8008]  ? rtnl_fill_vf+0x4a0/0x4a0
[  522.878823][ T8008]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  522.885574][ T8008]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  522.891758][ T8008]  netlink_rcv_skb+0x16b/0x440
[  522.896979][ T8008]  ? rtnl_fill_vf+0x4a0/0x4a0
[  522.902104][ T8008]  ? netlink_ack+0x1380/0x1380
[  522.907052][ T8008]  ? lock_sync+0x190/0x190
[  522.911672][ T8008]  ? netlink_deliver_tap+0x1a0/0xd00
[  522.917252][ T8008]  ? _copy_from_iter+0x2c1/0x10f0
[  522.922382][ T8008]  netlink_unicast+0x53b/0x810
[  522.927260][ T8008]  ? netlink_attachskb+0x880/0x880
[  522.932383][ T8008]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  522.938289][ T8008]  ? __phys_addr_symbol+0x30/0x70
[  522.943416][ T8008]  ? __check_object_size+0x323/0x730
[  522.949056][ T8008]  netlink_sendmsg+0x93c/0xe40
[  522.954556][ T8008]  ? netlink_unicast+0x810/0x810
[  522.960076][ T8008]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  522.965748][ T8008]  ? netlink_unicast+0x810/0x810
[  522.971001][ T8008]  __sock_sendmsg+0xd5/0x180
[  522.976206][ T8008]  ____sys_sendmsg+0x6ac/0x940
[  522.981094][ T8008]  ? copy_msghdr_from_user+0x10b/0x160
[  522.986664][ T8008]  ? kernel_sendmsg+0x50/0x50
[  522.991453][ T8008]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  522.997786][ T8008]  ___sys_sendmsg+0x135/0x1d0
[  523.002505][ T8008]  ? do_recvmmsg+0x740/0x740
[  523.007222][ T8008]  ? find_held_lock+0x2d/0x110
[  523.012398][ T8008]  ? preempt_count_sub+0x160/0x160
[  523.017626][ T8008]  ? __fget_light+0x1fc/0x260
[  523.022616][ T8008]  __sys_sendmsg+0x117/0x1e0
[  523.027365][ T8008]  ? __sys_sendmsg_sock+0x30/0x30
[  523.032452][ T8008]  ? xfd_validate_state+0x5d/0x180
[  523.037594][ T8008]  ? syscall_enter_from_user_mode+0x7f/0x120
[  523.043642][ T8008]  do_syscall_64+0x40/0x110
[  523.048333][ T8008]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  523.054412][ T8008] RIP: 0033:0x7fb700fd30b9
[  523.058828][ T8008] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  523.078882][ T8008] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  523.087406][ T8008] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  523.095723][ T8008] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  523.104760][ T8008] RBP: 000000000007f5a4 R08: 0000000000000000 R09: 0000000000000006
[  523.113119][ T8008] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  523.121445][ T8008] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  523.129795][ T8008]  </TASK>
[  523.136039][ T8008] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  523.186200][ T8008] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  523.196032][ T8008] CPU: 0 PID: 8008 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  523.206286][ T8008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  523.217142][ T8008] Call Trace:
[  523.220521][ T8008]  <TASK>
[  523.223539][ T8008]  dump_stack_lvl+0x125/0x1b0
[  523.228310][ T8008]  sysfs_warn_dup+0x7f/0xa0
[  523.232912][ T8008]  sysfs_create_dir_ns+0x249/0x2b0
[  523.238298][ T8008]  ? sysfs_create_mount_point+0xb0/0xb0
[  523.244057][ T8008]  ? spin_bug+0x1d0/0x1d0
[  523.250679][ T8008]  ? net_namespace+0x12/0x40
[  523.255471][ T8008]  ? device_namespace+0x8d/0xc0
[  523.261356][ T8008]  kobject_add_internal+0x2c8/0x970
[  523.267227][ T8008]  kobject_add+0x16f/0x240
[  523.271851][ T8008]  ? kset_create_and_add+0x190/0x190
[  523.277930][ T8008]  ? do_raw_spin_unlock+0x173/0x230
[  523.283567][ T8008]  ? kobject_put+0xbe/0x440
[  523.288163][ T8008]  ? device_add+0xc35/0x1aa0
[  523.292938][ T8008]  device_add+0x289/0x1aa0
[  523.297451][ T8008]  ? device_initialize+0x510/0x510
[  523.302601][ T8008]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  523.309637][ T8008]  ? __init_waitqueue_head+0xca/0x150
[  523.315135][ T8008]  netdev_register_kobject+0x183/0x3f0
[  523.321161][ T8008]  register_netdevice+0xbe6/0x14b0
[  523.326547][ T8008]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  523.332799][ T8008]  ? validate_linkmsg+0x6fc/0x9c0
[  523.338440][ T8008]  br_dev_newlink+0x27/0x110
[  523.343396][ T8008]  ? br_changelink+0x1760/0x1760
[  523.348611][ T8008]  __rtnl_newlink+0x1173/0x1930
[  523.353741][ T8008]  ? rtnl_link_unregister+0x260/0x260
[  523.359321][ T8008]  rtnl_newlink+0x67/0xa0
[  523.363745][ T8008]  ? __rtnl_newlink+0x1930/0x1930
[  523.368995][ T8008]  rtnetlink_rcv_msg+0x3c7/0xe00
[  523.374033][ T8008]  ? rtnl_fill_vf+0x4a0/0x4a0
[  523.378989][ T8008]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  523.385070][ T8008]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  523.391253][ T8008]  netlink_rcv_skb+0x16b/0x440
[  523.396031][ T8008]  ? rtnl_fill_vf+0x4a0/0x4a0
[  523.400716][ T8008]  ? netlink_ack+0x1380/0x1380
[  523.405581][ T8008]  ? lock_sync+0x190/0x190
[  523.410454][ T8008]  ? netlink_deliver_tap+0x1a0/0xd00
[  523.415749][ T8008]  ? _copy_from_iter+0x2c1/0x10f0
[  523.420923][ T8008]  netlink_unicast+0x53b/0x810
[  523.425705][ T8008]  ? netlink_attachskb+0x880/0x880
[  523.430912][ T8008]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  523.436819][ T8008]  ? __phys_addr_symbol+0x30/0x70
[  523.441848][ T8008]  ? __check_object_size+0x323/0x730
[  523.447145][ T8008]  netlink_sendmsg+0x93c/0xe40
[  523.451926][ T8008]  ? netlink_unicast+0x810/0x810
[  523.457410][ T8008]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  523.463178][ T8008]  ? netlink_unicast+0x810/0x810
[  523.468221][ T8008]  __sock_sendmsg+0xd5/0x180
[  523.472905][ T8008]  ____sys_sendmsg+0x6ac/0x940
[  523.477763][ T8008]  ? copy_msghdr_from_user+0x10b/0x160
[  523.484361][ T8008]  ? kernel_sendmsg+0x50/0x50
[  523.489133][ T8008]  ? hlock_class+0x4e/0x130
[  523.493772][ T8008]  ? __lock_acquire+0x14e0/0x3b10
[  523.498911][ T8008]  ___sys_sendmsg+0x135/0x1d0
[  523.503689][ T8008]  ? do_recvmmsg+0x740/0x740
[  523.508463][ T8008]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  523.514545][ T8008]  ? find_held_lock+0x2d/0x110
[  523.519623][ T8008]  ? __fget_light+0x1fc/0x260
[  523.524483][ T8008]  __sys_sendmsg+0x117/0x1e0
[  523.529605][ T8008]  ? __sys_sendmsg_sock+0x30/0x30
[  523.534990][ T8008]  ? __do_sys_rseq+0x750/0x750
[  523.540036][ T8008]  ? syscall_enter_from_user_mode+0x7f/0x120
[  523.546295][ T8008]  do_syscall_64+0x40/0x110
[  523.551932][ T8008]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  523.557962][ T8008] RIP: 0033:0x7fb700fd30b9
[  523.562471][ T8008] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  523.582180][ T8008] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  523.590948][ T8008] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  523.598928][ T8008] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  523.606990][ T8008] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  523.615211][ T8008] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  523.623704][ T8008] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  523.631777][ T8008]  </TASK>
[  523.639640][ T8008] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  523.700940][ T8009] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  523.711679][ T8009] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  523.721344][ T8009] CPU: 0 PID: 8009 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  523.731747][ T8009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  523.742367][ T8009] Call Trace:
[  523.746292][ T8009]  <TASK>
[  523.749254][ T8009]  dump_stack_lvl+0x125/0x1b0
[  523.754214][ T8009]  sysfs_warn_dup+0x7f/0xa0
[  523.759164][ T8009]  sysfs_create_dir_ns+0x249/0x2b0
[  523.764374][ T8009]  ? sysfs_create_mount_point+0xb0/0xb0
[  523.770035][ T8009]  ? spin_bug+0x1d0/0x1d0
[  523.774470][ T8009]  ? net_namespace+0x12/0x40
[  523.779162][ T8009]  ? device_namespace+0x8d/0xc0
[  523.784227][ T8009]  kobject_add_internal+0x2c8/0x970
[  523.789617][ T8009]  kobject_add+0x16f/0x240
[  523.794049][ T8009]  ? kset_create_and_add+0x190/0x190
[  523.799521][ T8009]  ? do_raw_spin_unlock+0x173/0x230
[  523.804742][ T8009]  ? kobject_put+0xbe/0x440
[  523.809328][ T8009]  ? device_add+0xc35/0x1aa0
[  523.814319][ T8009]  device_add+0x289/0x1aa0
[  523.820403][ T8009]  ? device_initialize+0x510/0x510
[  523.825869][ T8009]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  523.833359][ T8009]  ? __init_waitqueue_head+0xca/0x150
[  523.839009][ T8009]  netdev_register_kobject+0x183/0x3f0
[  523.844955][ T8009]  register_netdevice+0xbe6/0x14b0
[  523.850480][ T8009]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  523.856487][ T8009]  ? validate_linkmsg+0x6fc/0x9c0
[  523.861612][ T8009]  br_dev_newlink+0x27/0x110
[  523.866306][ T8009]  ? br_changelink+0x1760/0x1760
[  523.871506][ T8009]  __rtnl_newlink+0x1173/0x1930
[  523.876378][ T8009]  ? rtnl_link_unregister+0x260/0x260
[  523.881871][ T8009]  rtnl_newlink+0x67/0xa0
[  523.886221][ T8009]  ? __rtnl_newlink+0x1930/0x1930
[  523.891338][ T8009]  rtnetlink_rcv_msg+0x3c7/0xe00
[  523.896635][ T8009]  ? rtnl_fill_vf+0x4a0/0x4a0
[  523.901605][ T8009]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  523.907805][ T8009]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  523.914085][ T8009]  netlink_rcv_skb+0x16b/0x440
[  523.918867][ T8009]  ? rtnl_fill_vf+0x4a0/0x4a0
[  523.923730][ T8009]  ? netlink_ack+0x1380/0x1380
[  523.928771][ T8009]  ? lock_sync+0x190/0x190
[  523.933251][ T8009]  ? netlink_deliver_tap+0x1a0/0xd00
[  523.938830][ T8009]  ? _copy_from_iter+0x2c1/0x10f0
[  523.943888][ T8009]  netlink_unicast+0x53b/0x810
[  523.948950][ T8009]  ? netlink_attachskb+0x880/0x880
[  523.954417][ T8009]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  523.960839][ T8009]  ? __phys_addr_symbol+0x30/0x70
[  523.966065][ T8009]  ? __check_object_size+0x323/0x730
[  523.971548][ T8009]  netlink_sendmsg+0x93c/0xe40
[  523.976460][ T8009]  ? netlink_unicast+0x810/0x810
[  523.984645][ T8009]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  523.990033][ T8009]  ? netlink_unicast+0x810/0x810
[  523.995163][ T8009]  __sock_sendmsg+0xd5/0x180
[  524.000460][ T8009]  ____sys_sendmsg+0x6ac/0x940
[  524.006307][ T8009]  ? copy_msghdr_from_user+0x10b/0x160
[  524.012297][ T8009]  ? kernel_sendmsg+0x50/0x50
[  524.017506][ T8009]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  524.023590][ T8009]  ___sys_sendmsg+0x135/0x1d0
[  524.028633][ T8009]  ? do_recvmmsg+0x740/0x740
[  524.033409][ T8009]  ? find_held_lock+0x2d/0x110
[  524.038282][ T8009]  ? preempt_count_sub+0x160/0x160
[  524.043523][ T8009]  ? __fget_light+0x1fc/0x260
[  524.048391][ T8009]  __sys_sendmsg+0x117/0x1e0
[  524.053349][ T8009]  ? __sys_sendmsg_sock+0x30/0x30
[  524.058490][ T8009]  ? syscall_enter_from_user_mode+0x7f/0x120
[  524.064662][ T8009]  do_syscall_64+0x40/0x110
[  524.069269][ T8009]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  524.075346][ T8009] RIP: 0033:0x7fb700fd30b9
[  524.079813][ T8009] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  524.100643][ T8009] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  524.109423][ T8009] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  524.117567][ T8009] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  524.125536][ T8009] RBP: 000000000007f98b R08: 0000000000000000 R09: 0000000000000006
[  524.133767][ T8009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  524.142005][ T8009] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  524.150336][ T8009]  </TASK>
[  524.154755][ T8009] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  524.215973][ T8009] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  524.225290][ T8009] CPU: 0 PID: 8009 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  524.236753][ T8009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  524.247175][ T8009] Call Trace:
[  524.250671][ T8009]  <TASK>
[  524.253702][ T8009]  dump_stack_lvl+0x125/0x1b0
[  524.258492][ T8009]  sysfs_warn_dup+0x7f/0xa0
[  524.263111][ T8009]  sysfs_create_dir_ns+0x249/0x2b0
[  524.268521][ T8009]  ? sysfs_create_mount_point+0xb0/0xb0
[  524.274262][ T8009]  ? spin_bug+0x1d0/0x1d0
[  524.278607][ T8009]  ? net_namespace+0x12/0x40
[  524.283304][ T8009]  ? device_namespace+0x8d/0xc0
[  524.288629][ T8009]  kobject_add_internal+0x2c8/0x970
[  524.293938][ T8009]  kobject_add+0x16f/0x240
[  524.298451][ T8009]  ? kset_create_and_add+0x190/0x190
[  524.303744][ T8009]  ? do_raw_spin_unlock+0x173/0x230
[  524.308943][ T8009]  ? kobject_put+0xbe/0x440
[  524.313459][ T8009]  ? device_add+0xc35/0x1aa0
[  524.318059][ T8009]  device_add+0x289/0x1aa0
[  524.322485][ T8009]  ? device_initialize+0x510/0x510
[  524.327689][ T8009]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  524.334984][ T8009]  ? __init_waitqueue_head+0xca/0x150
[  524.340370][ T8009]  netdev_register_kobject+0x183/0x3f0
[  524.345932][ T8009]  register_netdevice+0xbe6/0x14b0
[  524.351236][ T8009]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  524.357141][ T8009]  ? validate_linkmsg+0x6fc/0x9c0
[  524.362345][ T8009]  br_dev_newlink+0x27/0x110
[  524.367119][ T8009]  ? br_changelink+0x1760/0x1760
[  524.372145][ T8009]  __rtnl_newlink+0x1173/0x1930
[  524.377185][ T8009]  ? rtnl_link_unregister+0x260/0x260
[  524.382770][ T8009]  rtnl_newlink+0x67/0xa0
[  524.387105][ T8009]  ? __rtnl_newlink+0x1930/0x1930
[  524.392230][ T8009]  rtnetlink_rcv_msg+0x3c7/0xe00
[  524.397272][ T8009]  ? rtnl_fill_vf+0x4a0/0x4a0
[  524.402155][ T8009]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  524.408410][ T8009]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  524.414415][ T8009]  netlink_rcv_skb+0x16b/0x440
[  524.419282][ T8009]  ? rtnl_fill_vf+0x4a0/0x4a0
[  524.424070][ T8009]  ? netlink_ack+0x1380/0x1380
[  524.428955][ T8009]  ? lock_sync+0x190/0x190
[  524.433396][ T8009]  ? netlink_deliver_tap+0x1a0/0xd00
[  524.438861][ T8009]  ? _copy_from_iter+0x2c1/0x10f0
[  524.443924][ T8009]  netlink_unicast+0x53b/0x810
[  524.448791][ T8009]  ? netlink_attachskb+0x880/0x880
[  524.454604][ T8009]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  524.460591][ T8009]  ? __phys_addr_symbol+0x30/0x70
[  524.465724][ T8009]  ? __check_object_size+0x323/0x730
[  524.471543][ T8009]  netlink_sendmsg+0x93c/0xe40
[  524.476511][ T8009]  ? netlink_unicast+0x810/0x810
[  524.481462][ T8009]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  524.486894][ T8009]  ? netlink_unicast+0x810/0x810
[  524.491840][ T8009]  __sock_sendmsg+0xd5/0x180
[  524.496546][ T8009]  ____sys_sendmsg+0x6ac/0x940
[  524.501313][ T8009]  ? copy_msghdr_from_user+0x10b/0x160
[  524.506786][ T8009]  ? kernel_sendmsg+0x50/0x50
[  524.511729][ T8009]  ? hlock_class+0x4e/0x130
[  524.516506][ T8009]  ? __lock_acquire+0x14e0/0x3b10
[  524.522413][ T8009]  ___sys_sendmsg+0x135/0x1d0
[  524.527385][ T8009]  ? do_recvmmsg+0x740/0x740
[  524.532092][ T8009]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  524.538360][ T8009]  ? find_held_lock+0x2d/0x110
[  524.543159][ T8009]  ? __fget_light+0x1fc/0x260
[  524.548366][ T8009]  __sys_sendmsg+0x117/0x1e0
[  524.553240][ T8009]  ? __sys_sendmsg_sock+0x30/0x30
[  524.558694][ T8009]  ? __do_sys_rseq+0x750/0x750
[  524.564450][ T8009]  ? syscall_enter_from_user_mode+0x7f/0x120
[  524.570908][ T8009]  do_syscall_64+0x40/0x110
[  524.575804][ T8009]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  524.582160][ T8009] RIP: 0033:0x7fb700fd30b9
[  524.586854][ T8009] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  524.606669][ T8009] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  524.615782][ T8009] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  524.624218][ T8009] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  524.632366][ T8009] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  524.640509][ T8009] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  524.648737][ T8009] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  524.657270][ T8009]  </TASK>
[  524.660585][ T8009] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  524.722157][ T8010] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  524.732899][ T8010] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  524.742093][ T8010] CPU: 1 PID: 8010 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  524.752163][ T8010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  524.763200][ T8010] Call Trace:
[  524.767196][ T8010]  <TASK>
[  524.770127][ T8010]  dump_stack_lvl+0x125/0x1b0
[  524.775430][ T8010]  sysfs_warn_dup+0x7f/0xa0
[  524.779986][ T8010]  sysfs_create_dir_ns+0x249/0x2b0
[  524.785312][ T8010]  ? sysfs_create_mount_point+0xb0/0xb0
[  524.790884][ T8010]  ? spin_bug+0x1d0/0x1d0
[  524.795429][ T8010]  ? net_namespace+0x12/0x40
[  524.800303][ T8010]  ? device_namespace+0x8d/0xc0
[  524.806060][ T8010]  kobject_add_internal+0x2c8/0x970
[  524.811561][ T8010]  kobject_add+0x16f/0x240
[  524.816095][ T8010]  ? kset_create_and_add+0x190/0x190
[  524.822436][ T8010]  ? do_raw_spin_unlock+0x173/0x230
[  524.827643][ T8010]  ? kobject_put+0xbe/0x440
[  524.832151][ T8010]  ? device_add+0xc35/0x1aa0
[  524.836744][ T8010]  device_add+0x289/0x1aa0
[  524.841176][ T8010]  ? device_initialize+0x510/0x510
[  524.846300][ T8010]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  524.853520][ T8010]  ? __init_waitqueue_head+0xca/0x150
[  524.859185][ T8010]  netdev_register_kobject+0x183/0x3f0
[  524.864903][ T8010]  register_netdevice+0xbe6/0x14b0
[  524.870226][ T8010]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  524.876736][ T8010]  ? validate_linkmsg+0x6fc/0x9c0
[  524.881794][ T8010]  br_dev_newlink+0x27/0x110
[  524.886398][ T8010]  ? br_changelink+0x1760/0x1760
[  524.891438][ T8010]  __rtnl_newlink+0x1173/0x1930
[  524.896466][ T8010]  ? rtnl_link_unregister+0x260/0x260
[  524.902087][ T8010]  rtnl_newlink+0x67/0xa0
[  524.906564][ T8010]  ? __rtnl_newlink+0x1930/0x1930
[  524.911733][ T8010]  rtnetlink_rcv_msg+0x3c7/0xe00
[  524.917498][ T8010]  ? rtnl_fill_vf+0x4a0/0x4a0
[  524.922307][ T8010]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  524.928659][ T8010]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  524.934880][ T8010]  netlink_rcv_skb+0x16b/0x440
[  524.940371][ T8010]  ? rtnl_fill_vf+0x4a0/0x4a0
[  524.945409][ T8010]  ? netlink_ack+0x1380/0x1380
[  524.950316][ T8010]  ? lock_sync+0x190/0x190
[  524.954898][ T8010]  ? netlink_deliver_tap+0x1a0/0xd00
[  524.960496][ T8010]  ? _copy_from_iter+0x2c1/0x10f0
[  524.965789][ T8010]  netlink_unicast+0x53b/0x810
[  524.971044][ T8010]  ? netlink_attachskb+0x880/0x880
[  524.976270][ T8010]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  524.982622][ T8010]  ? __phys_addr_symbol+0x30/0x70
[  524.988024][ T8010]  ? __check_object_size+0x323/0x730
[  524.993337][ T8010]  netlink_sendmsg+0x93c/0xe40
[  524.998236][ T8010]  ? netlink_unicast+0x810/0x810
[  525.003398][ T8010]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  525.008698][ T8010]  ? netlink_unicast+0x810/0x810
[  525.013645][ T8010]  __sock_sendmsg+0xd5/0x180
[  525.018258][ T8010]  ____sys_sendmsg+0x6ac/0x940
[  525.023048][ T8010]  ? copy_msghdr_from_user+0x10b/0x160
[  525.028628][ T8010]  ? kernel_sendmsg+0x50/0x50
[  525.033653][ T8010]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  525.039980][ T8010]  ___sys_sendmsg+0x135/0x1d0
[  525.044937][ T8010]  ? do_recvmmsg+0x740/0x740
[  525.049805][ T8010]  ? find_held_lock+0x2d/0x110
[  525.054935][ T8010]  ? preempt_count_sub+0x160/0x160
[  525.060374][ T8010]  ? __fget_light+0x1fc/0x260
[  525.065226][ T8010]  __sys_sendmsg+0x117/0x1e0
[  525.069857][ T8010]  ? __sys_sendmsg_sock+0x30/0x30
[  525.075360][ T8010]  ? xfd_validate_state+0x5d/0x180
[  525.080873][ T8010]  ? syscall_enter_from_user_mode+0x7f/0x120
[  525.086974][ T8010]  do_syscall_64+0x40/0x110
[  525.091653][ T8010]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  525.097693][ T8010] RIP: 0033:0x7fb700fd30b9
[  525.102459][ T8010] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  525.122503][ T8010] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  525.131877][ T8010] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  525.139937][ T8010] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  525.148269][ T8010] RBP: 000000000007fd87 R08: 0000000000000000 R09: 0000000000000006
[  525.156339][ T8010] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  525.164483][ T8010] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  525.172650][ T8010]  </TASK>
[  525.177644][ T8010] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  525.237560][ T8010] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  525.247073][ T8010] CPU: 0 PID: 8010 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  525.257457][ T8010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  525.268118][ T8010] Call Trace:
[  525.271401][ T8010]  <TASK>
[  525.274326][ T8010]  dump_stack_lvl+0x125/0x1b0
[  525.279283][ T8010]  sysfs_warn_dup+0x7f/0xa0
[  525.283902][ T8010]  sysfs_create_dir_ns+0x249/0x2b0
[  525.289328][ T8010]  ? sysfs_create_mount_point+0xb0/0xb0
[  525.295151][ T8010]  ? spin_bug+0x1d0/0x1d0
[  525.299578][ T8010]  ? net_namespace+0x12/0x40
[  525.304188][ T8010]  ? device_namespace+0x8d/0xc0
[  525.309095][ T8010]  kobject_add_internal+0x2c8/0x970
[  525.314831][ T8010]  kobject_add+0x16f/0x240
[  525.319429][ T8010]  ? kset_create_and_add+0x190/0x190
[  525.324905][ T8010]  ? do_raw_spin_unlock+0x173/0x230
[  525.330813][ T8010]  ? kobject_put+0xbe/0x440
[  525.335445][ T8010]  ? device_add+0xc35/0x1aa0
[  525.340396][ T8010]  device_add+0x289/0x1aa0
[  525.344911][ T8010]  ? device_initialize+0x510/0x510
[  525.350545][ T8010]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  525.357414][ T8010]  ? __init_waitqueue_head+0xca/0x150
[  525.363237][ T8010]  netdev_register_kobject+0x183/0x3f0
[  525.369144][ T8010]  register_netdevice+0xbe6/0x14b0
[  525.374524][ T8010]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  525.380512][ T8010]  ? validate_linkmsg+0x6fc/0x9c0
[  525.385629][ T8010]  br_dev_newlink+0x27/0x110
[  525.390222][ T8010]  ? br_changelink+0x1760/0x1760
[  525.395167][ T8010]  __rtnl_newlink+0x1173/0x1930
[  525.400115][ T8010]  ? rtnl_link_unregister+0x260/0x260
[  525.405911][ T8010]  rtnl_newlink+0x67/0xa0
[  525.410336][ T8010]  ? __rtnl_newlink+0x1930/0x1930
[  525.415362][ T8010]  rtnetlink_rcv_msg+0x3c7/0xe00
[  525.420487][ T8010]  ? rtnl_fill_vf+0x4a0/0x4a0
[  525.425262][ T8010]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  525.431436][ T8010]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  525.437543][ T8010]  netlink_rcv_skb+0x16b/0x440
[  525.442569][ T8010]  ? rtnl_fill_vf+0x4a0/0x4a0
[  525.447342][ T8010]  ? netlink_ack+0x1380/0x1380
[  525.452458][ T8010]  ? lock_sync+0x190/0x190
[  525.457159][ T8010]  ? netlink_deliver_tap+0x1a0/0xd00
[  525.462457][ T8010]  ? _copy_from_iter+0x2c1/0x10f0
[  525.467665][ T8010]  netlink_unicast+0x53b/0x810
[  525.472600][ T8010]  ? netlink_attachskb+0x880/0x880
[  525.477946][ T8010]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  525.484124][ T8010]  ? __phys_addr_symbol+0x30/0x70
[  525.489593][ T8010]  ? __check_object_size+0x323/0x730
[  525.495143][ T8010]  netlink_sendmsg+0x93c/0xe40
[  525.500095][ T8010]  ? netlink_unicast+0x810/0x810
[  525.505266][ T8010]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  525.510815][ T8010]  ? netlink_unicast+0x810/0x810
[  525.515980][ T8010]  __sock_sendmsg+0xd5/0x180
[  525.520836][ T8010]  ____sys_sendmsg+0x6ac/0x940
[  525.525776][ T8010]  ? copy_msghdr_from_user+0x10b/0x160
[  525.531240][ T8010]  ? kernel_sendmsg+0x50/0x50
[  525.535941][ T8010]  ? hlock_class+0x4e/0x130
[  525.540719][ T8010]  ? __lock_acquire+0x14e0/0x3b10
[  525.545937][ T8010]  ___sys_sendmsg+0x135/0x1d0
[  525.550985][ T8010]  ? do_recvmmsg+0x740/0x740
[  525.556497][ T8010]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  525.562770][ T8010]  ? find_held_lock+0x2d/0x110
[  525.567823][ T8010]  ? __fget_light+0x1fc/0x260
[  525.572712][ T8010]  __sys_sendmsg+0x117/0x1e0
[  525.577316][ T8010]  ? __sys_sendmsg_sock+0x30/0x30
[  525.582343][ T8010]  ? xfd_validate_state+0x5d/0x180
[  525.588342][ T8010]  ? syscall_enter_from_user_mode+0x7f/0x120
[  525.594351][ T8010]  do_syscall_64+0x40/0x110
[  525.598950][ T8010]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  525.605334][ T8010] RIP: 0033:0x7fb700fd30b9
[  525.610013][ T8010] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  525.631019][ T8010] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  525.639696][ T8010] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  525.647758][ T8010] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  525.655911][ T8010] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  525.664202][ T8010] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  525.672277][ T8010] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  525.680882][ T8010]  </TASK>
[  525.685146][ T8010] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  525.740931][ T8011] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  525.753067][ T8011] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  525.763225][ T8011] CPU: 0 PID: 8011 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  525.773826][ T8011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  525.784233][ T8011] Call Trace:
[  525.787622][ T8011]  <TASK>
[  525.790916][ T8011]  dump_stack_lvl+0x125/0x1b0
[  525.796066][ T8011]  sysfs_warn_dup+0x7f/0xa0
[  525.800960][ T8011]  sysfs_create_dir_ns+0x249/0x2b0
[  525.806364][ T8011]  ? sysfs_create_mount_point+0xb0/0xb0
[  525.812437][ T8011]  ? spin_bug+0x1d0/0x1d0
[  525.816909][ T8011]  ? net_namespace+0x12/0x40
[  525.821601][ T8011]  ? device_namespace+0x8d/0xc0
[  525.826496][ T8011]  kobject_add_internal+0x2c8/0x970
[  525.832180][ T8011]  kobject_add+0x16f/0x240
[  525.837066][ T8011]  ? kset_create_and_add+0x190/0x190
[  525.842564][ T8011]  ? do_raw_spin_unlock+0x173/0x230
[  525.847941][ T8011]  ? kobject_put+0xbe/0x440
[  525.852729][ T8011]  ? device_add+0xc35/0x1aa0
[  525.858728][ T8011]  device_add+0x289/0x1aa0
[  525.863178][ T8011]  ? device_initialize+0x510/0x510
[  525.868295][ T8011]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  525.875280][ T8011]  ? __init_waitqueue_head+0xca/0x150
[  525.881199][ T8011]  netdev_register_kobject+0x183/0x3f0
[  525.886961][ T8011]  register_netdevice+0xbe6/0x14b0
[  525.892658][ T8011]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  525.898601][ T8011]  ? validate_linkmsg+0x6fc/0x9c0
[  525.903838][ T8011]  br_dev_newlink+0x27/0x110
[  525.908752][ T8011]  ? br_changelink+0x1760/0x1760
[  525.913820][ T8011]  __rtnl_newlink+0x1173/0x1930
[  525.919425][ T8011]  ? rtnl_link_unregister+0x260/0x260
[  525.925070][ T8011]  rtnl_newlink+0x67/0xa0
[  525.929500][ T8011]  ? __rtnl_newlink+0x1930/0x1930
[  525.934820][ T8011]  rtnetlink_rcv_msg+0x3c7/0xe00
[  525.939897][ T8011]  ? rtnl_fill_vf+0x4a0/0x4a0
[  525.944785][ T8011]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  525.951234][ T8011]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  525.957970][ T8011]  netlink_rcv_skb+0x16b/0x440
[  525.962946][ T8011]  ? rtnl_fill_vf+0x4a0/0x4a0
[  525.967645][ T8011]  ? netlink_ack+0x1380/0x1380
[  525.972678][ T8011]  ? lock_sync+0x190/0x190
[  525.977388][ T8011]  ? netlink_deliver_tap+0x1a0/0xd00
[  525.982906][ T8011]  ? _copy_from_iter+0x2c1/0x10f0
[  525.988208][ T8011]  netlink_unicast+0x53b/0x810
[  525.993173][ T8011]  ? netlink_attachskb+0x880/0x880
[  525.998382][ T8011]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  526.004375][ T8011]  ? __phys_addr_symbol+0x30/0x70
[  526.009410][ T8011]  ? __check_object_size+0x323/0x730
[  526.014729][ T8011]  netlink_sendmsg+0x93c/0xe40
[  526.019762][ T8011]  ? netlink_unicast+0x810/0x810
[  526.024739][ T8011]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  526.030299][ T8011]  ? netlink_unicast+0x810/0x810
[  526.035381][ T8011]  __sock_sendmsg+0xd5/0x180
[  526.040360][ T8011]  ____sys_sendmsg+0x6ac/0x940
[  526.045225][ T8011]  ? copy_msghdr_from_user+0x10b/0x160
[  526.050798][ T8011]  ? kernel_sendmsg+0x50/0x50
[  526.056031][ T8011]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  526.062157][ T8011]  ___sys_sendmsg+0x135/0x1d0
[  526.067049][ T8011]  ? do_recvmmsg+0x740/0x740
[  526.071823][ T8011]  ? find_held_lock+0x2d/0x110
[  526.076731][ T8011]  ? preempt_count_sub+0x160/0x160
[  526.081957][ T8011]  ? __fget_light+0x1fc/0x260
[  526.086751][ T8011]  __sys_sendmsg+0x117/0x1e0
[  526.091384][ T8011]  ? __sys_sendmsg_sock+0x30/0x30
[  526.096564][ T8011]  ? syscall_enter_from_user_mode+0x7f/0x120
[  526.102827][ T8011]  do_syscall_64+0x40/0x110
[  526.107438][ T8011]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  526.113366][ T8011] RIP: 0033:0x7fb700fd30b9
[  526.118134][ T8011] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  526.139117][ T8011] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  526.147646][ T8011] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  526.156903][ T8011] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  526.165665][ T8011] RBP: 0000000000080185 R08: 0000000000000000 R09: 0000000000000006
[  526.174341][ T8011] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  526.183969][ T8011] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  526.192595][ T8011]  </TASK>
[  526.196013][ T8011] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  526.255925][ T8011] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  526.265348][ T8011] CPU: 0 PID: 8011 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  526.275518][ T8011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  526.286033][ T8011] Call Trace:
[  526.289320][ T8011]  <TASK>
[  526.292335][ T8011]  dump_stack_lvl+0x125/0x1b0
[  526.297144][ T8011]  sysfs_warn_dup+0x7f/0xa0
[  526.301871][ T8011]  sysfs_create_dir_ns+0x249/0x2b0
[  526.306999][ T8011]  ? sysfs_create_mount_point+0xb0/0xb0
[  526.312569][ T8011]  ? spin_bug+0x1d0/0x1d0
[  526.317096][ T8011]  ? net_namespace+0x12/0x40
[  526.321794][ T8011]  ? device_namespace+0x8d/0xc0
[  526.326966][ T8011]  kobject_add_internal+0x2c8/0x970
[  526.332584][ T8011]  kobject_add+0x16f/0x240
[  526.337228][ T8011]  ? kset_create_and_add+0x190/0x190
[  526.342704][ T8011]  ? do_raw_spin_unlock+0x173/0x230
[  526.348080][ T8011]  ? kobject_put+0xbe/0x440
[  526.352588][ T8011]  ? device_add+0xc35/0x1aa0
[  526.357364][ T8011]  device_add+0x289/0x1aa0
[  526.361910][ T8011]  ? device_initialize+0x510/0x510
[  526.367113][ T8011]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  526.374175][ T8011]  ? __init_waitqueue_head+0xca/0x150
[  526.379872][ T8011]  netdev_register_kobject+0x183/0x3f0
[  526.385788][ T8011]  register_netdevice+0xbe6/0x14b0
[  526.390983][ T8011]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  526.396888][ T8011]  ? validate_linkmsg+0x6fc/0x9c0
[  526.402016][ T8011]  br_dev_newlink+0x27/0x110
[  526.407392][ T8011]  ? br_changelink+0x1760/0x1760
[  526.412422][ T8011]  __rtnl_newlink+0x1173/0x1930
[  526.417290][ T8011]  ? rtnl_link_unregister+0x260/0x260
[  526.422892][ T8011]  rtnl_newlink+0x67/0xa0
[  526.427503][ T8011]  ? __rtnl_newlink+0x1930/0x1930
[  526.433592][ T8011]  rtnetlink_rcv_msg+0x3c7/0xe00
[  526.438738][ T8011]  ? rtnl_fill_vf+0x4a0/0x4a0
[  526.443785][ T8011]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  526.449883][ T8011]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  526.455972][ T8011]  netlink_rcv_skb+0x16b/0x440
[  526.460923][ T8011]  ? rtnl_fill_vf+0x4a0/0x4a0
[  526.465698][ T8011]  ? netlink_ack+0x1380/0x1380
[  526.470622][ T8011]  ? lock_sync+0x190/0x190
[  526.475350][ T8011]  ? netlink_deliver_tap+0x1a0/0xd00
[  526.481093][ T8011]  ? _copy_from_iter+0x2c1/0x10f0
[  526.486583][ T8011]  netlink_unicast+0x53b/0x810
[  526.492108][ T8011]  ? netlink_attachskb+0x880/0x880
[  526.497509][ T8011]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  526.503626][ T8011]  ? __phys_addr_symbol+0x30/0x70
[  526.508951][ T8011]  ? __check_object_size+0x323/0x730
[  526.514601][ T8011]  netlink_sendmsg+0x93c/0xe40
[  526.519560][ T8011]  ? netlink_unicast+0x810/0x810
[  526.524781][ T8011]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  526.530277][ T8011]  ? netlink_unicast+0x810/0x810
[  526.535472][ T8011]  __sock_sendmsg+0xd5/0x180
[  526.540266][ T8011]  ____sys_sendmsg+0x6ac/0x940
[  526.545539][ T8011]  ? copy_msghdr_from_user+0x10b/0x160
[  526.551557][ T8011]  ? kernel_sendmsg+0x50/0x50
[  526.557053][ T8011]  ? hlock_class+0x4e/0x130
[  526.562186][ T8011]  ? __lock_acquire+0x14e0/0x3b10
[  526.568366][ T8011]  ___sys_sendmsg+0x135/0x1d0
[  526.573495][ T8011]  ? do_recvmmsg+0x740/0x740
[  526.578185][ T8011]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  526.584264][ T8011]  ? find_held_lock+0x2d/0x110
[  526.589069][ T8011]  ? __fget_light+0x1fc/0x260
[  526.593825][ T8011]  __sys_sendmsg+0x117/0x1e0
[  526.598839][ T8011]  ? __sys_sendmsg_sock+0x30/0x30
[  526.604041][ T8011]  ? __do_sys_rseq+0x750/0x750
[  526.608839][ T8011]  ? syscall_enter_from_user_mode+0x7f/0x120
[  526.614960][ T8011]  do_syscall_64+0x40/0x110
[  526.620087][ T8011]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  526.626610][ T8011] RIP: 0033:0x7fb700fd30b9
[  526.631373][ T8011] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  526.651086][ T8011] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  526.660049][ T8011] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  526.668546][ T8011] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  526.676606][ T8011] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  526.684664][ T8011] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  526.692635][ T8011] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  526.700711][ T8011]  </TASK>
[  526.705322][ T8011] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  526.761961][ T8012] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  526.772644][ T8012] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  526.782246][ T8012] CPU: 1 PID: 8012 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  526.792822][ T8012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  526.803139][ T8012] Call Trace:
[  526.806569][ T8012]  <TASK>
[  526.809611][ T8012]  dump_stack_lvl+0x125/0x1b0
[  526.814309][ T8012]  sysfs_warn_dup+0x7f/0xa0
[  526.818829][ T8012]  sysfs_create_dir_ns+0x249/0x2b0
[  526.823966][ T8012]  ? sysfs_create_mount_point+0xb0/0xb0
[  526.829619][ T8012]  ? spin_bug+0x1d0/0x1d0
[  526.834107][ T8012]  ? net_namespace+0x12/0x40
[  526.838809][ T8012]  ? device_namespace+0x8d/0xc0
[  526.844300][ T8012]  kobject_add_internal+0x2c8/0x970
[  526.849657][ T8012]  kobject_add+0x16f/0x240
[  526.854202][ T8012]  ? kset_create_and_add+0x190/0x190
[  526.859889][ T8012]  ? do_raw_spin_unlock+0x173/0x230
[  526.865453][ T8012]  ? kobject_put+0xbe/0x440
[  526.870155][ T8012]  ? device_add+0xc35/0x1aa0
[  526.874940][ T8012]  device_add+0x289/0x1aa0
[  526.879459][ T8012]  ? device_initialize+0x510/0x510
[  526.884854][ T8012]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  526.891807][ T8012]  ? __init_waitqueue_head+0xca/0x150
[  526.897293][ T8012]  netdev_register_kobject+0x183/0x3f0
[  526.902780][ T8012]  register_netdevice+0xbe6/0x14b0
[  526.908080][ T8012]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  526.914261][ T8012]  ? validate_linkmsg+0x6fc/0x9c0
[  526.919576][ T8012]  br_dev_newlink+0x27/0x110
[  526.924366][ T8012]  ? br_changelink+0x1760/0x1760
[  526.929397][ T8012]  __rtnl_newlink+0x1173/0x1930
[  526.934268][ T8012]  ? rtnl_link_unregister+0x260/0x260
[  526.939682][ T8012]  rtnl_newlink+0x67/0xa0
[  526.944349][ T8012]  ? __rtnl_newlink+0x1930/0x1930
[  526.949836][ T8012]  rtnetlink_rcv_msg+0x3c7/0xe00
[  526.954895][ T8012]  ? rtnl_fill_vf+0x4a0/0x4a0
[  526.959665][ T8012]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  526.965757][ T8012]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  526.971755][ T8012]  netlink_rcv_skb+0x16b/0x440
[  526.976623][ T8012]  ? rtnl_fill_vf+0x4a0/0x4a0
[  526.981483][ T8012]  ? netlink_ack+0x1380/0x1380
[  526.986381][ T8012]  ? lock_sync+0x190/0x190
[  526.990994][ T8012]  ? netlink_deliver_tap+0x1a0/0xd00
[  526.996485][ T8012]  ? _copy_from_iter+0x2c1/0x10f0
[  527.001713][ T8012]  netlink_unicast+0x53b/0x810
[  527.006669][ T8012]  ? netlink_attachskb+0x880/0x880
[  527.011793][ T8012]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  527.017954][ T8012]  ? __phys_addr_symbol+0x30/0x70
[  527.023088][ T8012]  ? __check_object_size+0x323/0x730
[  527.028397][ T8012]  netlink_sendmsg+0x93c/0xe40
[  527.033276][ T8012]  ? netlink_unicast+0x810/0x810
[  527.038765][ T8012]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  527.045201][ T8012]  ? netlink_unicast+0x810/0x810
[  527.050336][ T8012]  __sock_sendmsg+0xd5/0x180
[  527.055024][ T8012]  ____sys_sendmsg+0x6ac/0x940
[  527.059797][ T8012]  ? copy_msghdr_from_user+0x10b/0x160
[  527.065352][ T8012]  ? kernel_sendmsg+0x50/0x50
[  527.070220][ T8012]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  527.076744][ T8012]  ___sys_sendmsg+0x135/0x1d0
[  527.082400][ T8012]  ? do_recvmmsg+0x740/0x740
[  527.087091][ T8012]  ? find_held_lock+0x2d/0x110
[  527.092057][ T8012]  ? preempt_count_sub+0x160/0x160
[  527.097186][ T8012]  ? __fget_light+0x1fc/0x260
[  527.102233][ T8012]  __sys_sendmsg+0x117/0x1e0
[  527.106923][ T8012]  ? __sys_sendmsg_sock+0x30/0x30
[  527.112524][ T8012]  ? xfd_validate_state+0x5d/0x180
[  527.117927][ T8012]  ? syscall_enter_from_user_mode+0x7f/0x120
[  527.124305][ T8012]  do_syscall_64+0x40/0x110
[  527.129009][ T8012]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  527.134924][ T8012] RIP: 0033:0x7fb700fd30b9
[  527.139520][ T8012] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  527.160548][ T8012] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  527.170368][ T8012] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  527.178691][ T8012] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  527.186926][ T8012] RBP: 0000000000080580 R08: 0000000000000000 R09: 0000000000000006
[  527.194918][ T8012] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  527.203761][ T8012] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  527.212278][ T8012]  </TASK>
[  527.216153][ T8012] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  527.255836][ T8012] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  527.265511][ T8012] CPU: 1 PID: 8012 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  527.275637][ T8012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  527.285702][ T8012] Call Trace:
[  527.288981][ T8012]  <TASK>
[  527.291994][ T8012]  dump_stack_lvl+0x125/0x1b0
[  527.296743][ T8012]  sysfs_warn_dup+0x7f/0xa0
[  527.301337][ T8012]  sysfs_create_dir_ns+0x249/0x2b0
[  527.306537][ T8012]  ? sysfs_create_mount_point+0xb0/0xb0
[  527.312097][ T8012]  ? spin_bug+0x1d0/0x1d0
[  527.316515][ T8012]  ? net_namespace+0x12/0x40
[  527.321222][ T8012]  ? device_namespace+0x8d/0xc0
[  527.326168][ T8012]  kobject_add_internal+0x2c8/0x970
[  527.331392][ T8012]  kobject_add+0x16f/0x240
[  527.335918][ T8012]  ? kset_create_and_add+0x190/0x190
[  527.341436][ T8012]  ? do_raw_spin_unlock+0x173/0x230
[  527.346745][ T8012]  ? kobject_put+0xbe/0x440
[  527.351293][ T8012]  ? device_add+0xc35/0x1aa0
[  527.355898][ T8012]  device_add+0x289/0x1aa0
[  527.360508][ T8012]  ? device_initialize+0x510/0x510
[  527.365688][ T8012]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  527.372899][ T8012]  ? __init_waitqueue_head+0xca/0x150
[  527.378639][ T8012]  netdev_register_kobject+0x183/0x3f0
[  527.384220][ T8012]  register_netdevice+0xbe6/0x14b0
[  527.389514][ T8012]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  527.395510][ T8012]  ? validate_linkmsg+0x6fc/0x9c0
[  527.400891][ T8012]  br_dev_newlink+0x27/0x110
[  527.405837][ T8012]  ? br_changelink+0x1760/0x1760
[  527.410866][ T8012]  __rtnl_newlink+0x1173/0x1930
[  527.415908][ T8012]  ? rtnl_link_unregister+0x260/0x260
[  527.421335][ T8012]  rtnl_newlink+0x67/0xa0
[  527.425711][ T8012]  ? __rtnl_newlink+0x1930/0x1930
[  527.431353][ T8012]  rtnetlink_rcv_msg+0x3c7/0xe00
[  527.437387][ T8012]  ? rtnl_fill_vf+0x4a0/0x4a0
[  527.442182][ T8012]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  527.448655][ T8012]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  527.455922][ T8012]  netlink_rcv_skb+0x16b/0x440
[  527.462122][ T8012]  ? rtnl_fill_vf+0x4a0/0x4a0
[  527.467268][ T8012]  ? netlink_ack+0x1380/0x1380
[  527.472500][ T8012]  ? lock_sync+0x190/0x190
[  527.477153][ T8012]  ? netlink_deliver_tap+0x1a0/0xd00
[  527.482909][ T8012]  ? _copy_from_iter+0x2c1/0x10f0
[  527.488241][ T8012]  netlink_unicast+0x53b/0x810
[  527.493215][ T8012]  ? netlink_attachskb+0x880/0x880
[  527.498612][ T8012]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  527.504973][ T8012]  ? __phys_addr_symbol+0x30/0x70
[  527.510212][ T8012]  ? __check_object_size+0x323/0x730
[  527.515835][ T8012]  netlink_sendmsg+0x93c/0xe40
[  527.520751][ T8012]  ? netlink_unicast+0x810/0x810
[  527.525977][ T8012]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  527.531625][ T8012]  ? netlink_unicast+0x810/0x810
[  527.537451][ T8012]  __sock_sendmsg+0xd5/0x180
[  527.542578][ T8012]  ____sys_sendmsg+0x6ac/0x940
[  527.547501][ T8012]  ? copy_msghdr_from_user+0x10b/0x160
[  527.553067][ T8012]  ? kernel_sendmsg+0x50/0x50
[  527.557948][ T8012]  ___sys_sendmsg+0x135/0x1d0
[  527.562756][ T8012]  ? do_recvmmsg+0x740/0x740
[  527.567556][ T8012]  ? find_held_lock+0x2d/0x110
[  527.572443][ T8012]  ? preempt_count_sub+0x160/0x160
[  527.577664][ T8012]  ? __fget_light+0x1fc/0x260
[  527.582546][ T8012]  __sys_sendmsg+0x117/0x1e0
[  527.587146][ T8012]  ? __sys_sendmsg_sock+0x30/0x30
[  527.592194][ T8012]  ? syscall_enter_from_user_mode+0x7f/0x120
[  527.598195][ T8012]  do_syscall_64+0x40/0x110
[  527.602893][ T8012]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  527.609001][ T8012] RIP: 0033:0x7fb700fd30b9
[  527.613529][ T8012] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  527.634190][ T8012] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  527.642616][ T8012] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  527.650836][ T8012] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  527.658982][ T8012] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  527.667399][ T8012] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  527.675549][ T8012] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  527.683740][ T8012]  </TASK>
[  527.688857][ T8012] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  527.760730][ T8013] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  527.771454][ T8013] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  527.781173][ T8013] CPU: 1 PID: 8013 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  527.791735][ T8013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  527.801975][ T8013] Call Trace:
[  527.805267][ T8013]  <TASK>
[  527.808238][ T8013]  dump_stack_lvl+0x125/0x1b0
[  527.813512][ T8013]  sysfs_warn_dup+0x7f/0xa0
[  527.818242][ T8013]  sysfs_create_dir_ns+0x249/0x2b0
[  527.823652][ T8013]  ? sysfs_create_mount_point+0xb0/0xb0
[  527.829908][ T8013]  ? spin_bug+0x1d0/0x1d0
[  527.834343][ T8013]  ? net_namespace+0x12/0x40
[  527.839027][ T8013]  ? device_namespace+0x8d/0xc0
[  527.844424][ T8013]  kobject_add_internal+0x2c8/0x970
[  527.850088][ T8013]  kobject_add+0x16f/0x240
[  527.854541][ T8013]  ? kset_create_and_add+0x190/0x190
[  527.860078][ T8013]  ? do_raw_spin_unlock+0x173/0x230
[  527.865401][ T8013]  ? kobject_put+0xbe/0x440
[  527.870008][ T8013]  ? device_add+0xc35/0x1aa0
[  527.875155][ T8013]  device_add+0x289/0x1aa0
[  527.879769][ T8013]  ? device_initialize+0x510/0x510
[  527.884976][ T8013]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  527.891925][ T8013]  ? __init_waitqueue_head+0xca/0x150
[  527.897575][ T8013]  netdev_register_kobject+0x183/0x3f0
[  527.903087][ T8013]  register_netdevice+0xbe6/0x14b0
[  527.908907][ T8013]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  527.914985][ T8013]  ? validate_linkmsg+0x6fc/0x9c0
[  527.920769][ T8013]  br_dev_newlink+0x27/0x110
[  527.926339][ T8013]  ? br_changelink+0x1760/0x1760
[  527.931373][ T8013]  __rtnl_newlink+0x1173/0x1930
[  527.936426][ T8013]  ? rtnl_link_unregister+0x260/0x260
[  527.942465][ T8013]  rtnl_newlink+0x67/0xa0
[  527.946899][ T8013]  ? __rtnl_newlink+0x1930/0x1930
[  527.952282][ T8013]  rtnetlink_rcv_msg+0x3c7/0xe00
[  527.957406][ T8013]  ? rtnl_fill_vf+0x4a0/0x4a0
[  527.962268][ T8013]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  527.968792][ T8013]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  527.975224][ T8013]  netlink_rcv_skb+0x16b/0x440
[  527.980351][ T8013]  ? rtnl_fill_vf+0x4a0/0x4a0
[  527.985303][ T8013]  ? netlink_ack+0x1380/0x1380
[  527.990202][ T8013]  ? lock_sync+0x190/0x190
[  527.994745][ T8013]  ? netlink_deliver_tap+0x1a0/0xd00
[  528.000152][ T8013]  ? _copy_from_iter+0x2c1/0x10f0
[  528.005387][ T8013]  netlink_unicast+0x53b/0x810
[  528.010198][ T8013]  ? netlink_attachskb+0x880/0x880
[  528.015387][ T8013]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  528.021413][ T8013]  ? __phys_addr_symbol+0x30/0x70
[  528.026494][ T8013]  ? __check_object_size+0x323/0x730
[  528.031859][ T8013]  netlink_sendmsg+0x93c/0xe40
[  528.036662][ T8013]  ? netlink_unicast+0x810/0x810
[  528.041714][ T8013]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  528.047966][ T8013]  ? netlink_unicast+0x810/0x810
[  528.053212][ T8013]  __sock_sendmsg+0xd5/0x180
[  528.058390][ T8013]  ____sys_sendmsg+0x6ac/0x940
[  528.063638][ T8013]  ? copy_msghdr_from_user+0x10b/0x160
[  528.069218][ T8013]  ? kernel_sendmsg+0x50/0x50
[  528.073996][ T8013]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  528.080168][ T8013]  ___sys_sendmsg+0x135/0x1d0
[  528.085037][ T8013]  ? do_recvmmsg+0x740/0x740
[  528.089669][ T8013]  ? find_held_lock+0x2d/0x110
[  528.094538][ T8013]  ? preempt_count_sub+0x160/0x160
[  528.099747][ T8013]  ? __fget_light+0x1fc/0x260
[  528.104438][ T8013]  __sys_sendmsg+0x117/0x1e0
[  528.109307][ T8013]  ? __sys_sendmsg_sock+0x30/0x30
[  528.114347][ T8013]  ? xfd_validate_state+0x5d/0x180
[  528.119584][ T8013]  ? syscall_enter_from_user_mode+0x7f/0x120
[  528.125676][ T8013]  do_syscall_64+0x40/0x110
[  528.130360][ T8013]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  528.136437][ T8013] RIP: 0033:0x7fb700fd30b9
[  528.141024][ T8013] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  528.161653][ T8013] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  528.170335][ T8013] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  528.178637][ T8013] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  528.186801][ T8013] RBP: 000000000008097c R08: 0000000000000000 R09: 0000000000000006
[  528.195124][ T8013] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  528.203280][ T8013] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  528.211359][ T8013]  </TASK>
[  528.217725][ T8013] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  528.285903][ T8013] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  528.295311][ T8013] CPU: 0 PID: 8013 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  528.305569][ T8013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  528.316144][ T8013] Call Trace:
[  528.319439][ T8013]  <TASK>
[  528.322446][ T8013]  dump_stack_lvl+0x125/0x1b0
[  528.327292][ T8013]  sysfs_warn_dup+0x7f/0xa0
[  528.331913][ T8013]  sysfs_create_dir_ns+0x249/0x2b0
[  528.337027][ T8013]  ? sysfs_create_mount_point+0xb0/0xb0
[  528.342702][ T8013]  ? spin_bug+0x1d0/0x1d0
[  528.347961][ T8013]  ? net_namespace+0x12/0x40
[  528.352649][ T8013]  ? device_namespace+0x8d/0xc0
[  528.357615][ T8013]  kobject_add_internal+0x2c8/0x970
[  528.364826][ T8013]  kobject_add+0x16f/0x240
[  528.369523][ T8013]  ? kset_create_and_add+0x190/0x190
[  528.374839][ T8013]  ? do_raw_spin_unlock+0x173/0x230
[  528.380122][ T8013]  ? kobject_put+0xbe/0x440
[  528.384799][ T8013]  ? device_add+0xc35/0x1aa0
[  528.389484][ T8013]  device_add+0x289/0x1aa0
[  528.393917][ T8013]  ? device_initialize+0x510/0x510
[  528.399118][ T8013]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  528.406081][ T8013]  ? __init_waitqueue_head+0xca/0x150
[  528.411614][ T8013]  netdev_register_kobject+0x183/0x3f0
[  528.417362][ T8013]  register_netdevice+0xbe6/0x14b0
[  528.422973][ T8013]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  528.429949][ T8013]  ? validate_linkmsg+0x6fc/0x9c0
[  528.435258][ T8013]  br_dev_newlink+0x27/0x110
[  528.440210][ T8013]  ? br_changelink+0x1760/0x1760
[  528.445155][ T8013]  __rtnl_newlink+0x1173/0x1930
[  528.450113][ T8013]  ? rtnl_link_unregister+0x260/0x260
[  528.455599][ T8013]  rtnl_newlink+0x67/0xa0
[  528.460103][ T8013]  ? __rtnl_newlink+0x1930/0x1930
[  528.465389][ T8013]  rtnetlink_rcv_msg+0x3c7/0xe00
[  528.470695][ T8013]  ? rtnl_fill_vf+0x4a0/0x4a0
[  528.475822][ T8013]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  528.482175][ T8013]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  528.488525][ T8013]  netlink_rcv_skb+0x16b/0x440
[  528.493574][ T8013]  ? rtnl_fill_vf+0x4a0/0x4a0
[  528.498659][ T8013]  ? netlink_ack+0x1380/0x1380
[  528.503972][ T8013]  ? lock_sync+0x190/0x190
[  528.508869][ T8013]  ? netlink_deliver_tap+0x1a0/0xd00
[  528.514597][ T8013]  ? _copy_from_iter+0x2c1/0x10f0
[  528.519767][ T8013]  netlink_unicast+0x53b/0x810
[  528.524978][ T8013]  ? netlink_attachskb+0x880/0x880
[  528.530233][ T8013]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  528.536182][ T8013]  ? __phys_addr_symbol+0x30/0x70
[  528.542152][ T8013]  ? __check_object_size+0x323/0x730
[  528.547549][ T8013]  netlink_sendmsg+0x93c/0xe40
[  528.552457][ T8013]  ? netlink_unicast+0x810/0x810
[  528.557443][ T8013]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  528.562737][ T8013]  ? netlink_unicast+0x810/0x810
[  528.567680][ T8013]  __sock_sendmsg+0xd5/0x180
[  528.572369][ T8013]  ____sys_sendmsg+0x6ac/0x940
[  528.577180][ T8013]  ? copy_msghdr_from_user+0x10b/0x160
[  528.582737][ T8013]  ? kernel_sendmsg+0x50/0x50
[  528.587781][ T8013]  ___sys_sendmsg+0x135/0x1d0
[  528.592654][ T8013]  ? do_recvmmsg+0x740/0x740
[  528.597628][ T8013]  ? find_held_lock+0x2d/0x110
[  528.602616][ T8013]  ? preempt_count_sub+0x160/0x160
[  528.608129][ T8013]  ? __fget_light+0x1fc/0x260
[  528.613365][ T8013]  __sys_sendmsg+0x117/0x1e0
[  528.618249][ T8013]  ? __sys_sendmsg_sock+0x30/0x30
[  528.623472][ T8013]  ? syscall_enter_from_user_mode+0x7f/0x120
[  528.630085][ T8013]  do_syscall_64+0x40/0x110
[  528.634689][ T8013]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  528.640602][ T8013] RIP: 0033:0x7fb700fd30b9
[  528.645101][ T8013] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  528.665071][ T8013] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  528.674877][ T8013] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  528.682937][ T8013] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  528.691708][ T8013] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  528.699786][ T8013] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  528.708262][ T8013] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  528.716257][ T8013]  </TASK>
[  528.720356][ T8013] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  528.780124][ T8014] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  528.790653][ T8014] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  528.799940][ T8014] CPU: 1 PID: 8014 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  528.810441][ T8014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  528.821246][ T8014] Call Trace:
[  528.824550][ T8014]  <TASK>
[  528.827507][ T8014]  dump_stack_lvl+0x125/0x1b0
[  528.833685][ T8014]  sysfs_warn_dup+0x7f/0xa0
[  528.838395][ T8014]  sysfs_create_dir_ns+0x249/0x2b0
[  528.843614][ T8014]  ? sysfs_create_mount_point+0xb0/0xb0
[  528.849593][ T8014]  ? spin_bug+0x1d0/0x1d0
[  528.853926][ T8014]  ? net_namespace+0x12/0x40
[  528.858696][ T8014]  ? device_namespace+0x8d/0xc0
[  528.863649][ T8014]  kobject_add_internal+0x2c8/0x970
[  528.869025][ T8014]  kobject_add+0x16f/0x240
[  528.873440][ T8014]  ? kset_create_and_add+0x190/0x190
[  528.878741][ T8014]  ? do_raw_spin_unlock+0x173/0x230
[  528.883987][ T8014]  ? kobject_put+0xbe/0x440
[  528.888564][ T8014]  ? device_add+0xc35/0x1aa0
[  528.893338][ T8014]  device_add+0x289/0x1aa0
[  528.897757][ T8014]  ? device_initialize+0x510/0x510
[  528.902959][ T8014]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  528.909904][ T8014]  ? __init_waitqueue_head+0xca/0x150
[  528.915285][ T8014]  netdev_register_kobject+0x183/0x3f0
[  528.920925][ T8014]  register_netdevice+0xbe6/0x14b0
[  528.927548][ T8014]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  528.933623][ T8014]  ? validate_linkmsg+0x6fc/0x9c0
[  528.938676][ T8014]  br_dev_newlink+0x27/0x110
[  528.943285][ T8014]  ? br_changelink+0x1760/0x1760
[  528.948791][ T8014]  __rtnl_newlink+0x1173/0x1930
[  528.953657][ T8014]  ? rtnl_link_unregister+0x260/0x260
[  528.959912][ T8014]  rtnl_newlink+0x67/0xa0
[  528.964556][ T8014]  ? __rtnl_newlink+0x1930/0x1930
[  528.969697][ T8014]  rtnetlink_rcv_msg+0x3c7/0xe00
[  528.974933][ T8014]  ? rtnl_fill_vf+0x4a0/0x4a0
[  528.979990][ T8014]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  528.986005][ T8014]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  528.992605][ T8014]  netlink_rcv_skb+0x16b/0x440
[  528.997436][ T8014]  ? rtnl_fill_vf+0x4a0/0x4a0
[  529.002208][ T8014]  ? netlink_ack+0x1380/0x1380
[  529.007105][ T8014]  ? lock_sync+0x190/0x190
[  529.011588][ T8014]  ? netlink_deliver_tap+0x1a0/0xd00
[  529.017195][ T8014]  ? _copy_from_iter+0x2c1/0x10f0
[  529.022579][ T8014]  netlink_unicast+0x53b/0x810
[  529.027645][ T8014]  ? netlink_attachskb+0x880/0x880
[  529.032826][ T8014]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  529.039416][ T8014]  ? __phys_addr_symbol+0x30/0x70
[  529.044639][ T8014]  ? __check_object_size+0x323/0x730
[  529.050213][ T8014]  netlink_sendmsg+0x93c/0xe40
[  529.055200][ T8014]  ? netlink_unicast+0x810/0x810
[  529.061108][ T8014]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  529.066612][ T8014]  ? netlink_unicast+0x810/0x810
[  529.071661][ T8014]  __sock_sendmsg+0xd5/0x180
[  529.076472][ T8014]  ____sys_sendmsg+0x6ac/0x940
[  529.081675][ T8014]  ? copy_msghdr_from_user+0x10b/0x160
[  529.087258][ T8014]  ? kernel_sendmsg+0x50/0x50
[  529.092033][ T8014]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  529.098221][ T8014]  ___sys_sendmsg+0x135/0x1d0
[  529.103425][ T8014]  ? do_recvmmsg+0x740/0x740
[  529.108143][ T8014]  ? find_held_lock+0x2d/0x110
[  529.113185][ T8014]  ? preempt_count_sub+0x160/0x160
[  529.118616][ T8014]  ? __fget_light+0x1fc/0x260
[  529.123380][ T8014]  __sys_sendmsg+0x117/0x1e0
[  529.127983][ T8014]  ? __sys_sendmsg_sock+0x30/0x30
[  529.133110][ T8014]  ? syscall_enter_from_user_mode+0x7f/0x120
[  529.139446][ T8014]  do_syscall_64+0x40/0x110
[  529.143971][ T8014]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  529.150042][ T8014] RIP: 0033:0x7fb700fd30b9
[  529.154538][ T8014] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  529.175272][ T8014] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  529.183681][ T8014] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  529.191737][ T8014] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  529.199899][ T8014] RBP: 0000000000080d63 R08: 0000000000000000 R09: 0000000000000006
[  529.208049][ T8014] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  529.216107][ T8014] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  529.224986][ T8014]  </TASK>
[  529.231804][ T8014] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  529.285702][ T8014] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  529.295323][ T8014] CPU: 0 PID: 8014 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  529.305778][ T8014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  529.316195][ T8014] Call Trace:
[  529.319504][ T8014]  <TASK>
[  529.322644][ T8014]  dump_stack_lvl+0x125/0x1b0
[  529.327418][ T8014]  sysfs_warn_dup+0x7f/0xa0
[  529.333371][ T8014]  sysfs_create_dir_ns+0x249/0x2b0
[  529.338685][ T8014]  ? sysfs_create_mount_point+0xb0/0xb0
[  529.344608][ T8014]  ? spin_bug+0x1d0/0x1d0
[  529.348950][ T8014]  ? net_namespace+0x12/0x40
[  529.353808][ T8014]  ? device_namespace+0x8d/0xc0
[  529.358787][ T8014]  kobject_add_internal+0x2c8/0x970
[  529.364000][ T8014]  kobject_add+0x16f/0x240
[  529.368520][ T8014]  ? kset_create_and_add+0x190/0x190
[  529.373821][ T8014]  ? do_raw_spin_unlock+0x173/0x230
[  529.379033][ T8014]  ? kobject_put+0xbe/0x440
[  529.383816][ T8014]  ? device_add+0xc35/0x1aa0
[  529.388513][ T8014]  device_add+0x289/0x1aa0
[  529.392951][ T8014]  ? device_initialize+0x510/0x510
[  529.398157][ T8014]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  529.405373][ T8014]  ? __init_waitqueue_head+0xca/0x150
[  529.410886][ T8014]  netdev_register_kobject+0x183/0x3f0
[  529.416572][ T8014]  register_netdevice+0xbe6/0x14b0
[  529.421900][ T8014]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  529.428178][ T8014]  ? validate_linkmsg+0x6fc/0x9c0
[  529.433311][ T8014]  br_dev_newlink+0x27/0x110
[  529.438438][ T8014]  ? br_changelink+0x1760/0x1760
[  529.443495][ T8014]  __rtnl_newlink+0x1173/0x1930
[  529.448715][ T8014]  ? rtnl_link_unregister+0x260/0x260
[  529.454256][ T8014]  rtnl_newlink+0x67/0xa0
[  529.458597][ T8014]  ? __rtnl_newlink+0x1930/0x1930
[  529.463813][ T8014]  rtnetlink_rcv_msg+0x3c7/0xe00
[  529.468809][ T8014]  ? rtnl_fill_vf+0x4a0/0x4a0
[  529.473580][ T8014]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  529.479848][ T8014]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  529.486022][ T8014]  netlink_rcv_skb+0x16b/0x440
[  529.491254][ T8014]  ? rtnl_fill_vf+0x4a0/0x4a0
[  529.496082][ T8014]  ? netlink_ack+0x1380/0x1380
[  529.500939][ T8014]  ? lock_sync+0x190/0x190
[  529.505565][ T8014]  ? netlink_deliver_tap+0x1a0/0xd00
[  529.511309][ T8014]  ? _copy_from_iter+0x2c1/0x10f0
[  529.516510][ T8014]  netlink_unicast+0x53b/0x810
[  529.521435][ T8014]  ? netlink_attachskb+0x880/0x880
[  529.526579][ T8014]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  529.532684][ T8014]  ? __phys_addr_symbol+0x30/0x70
[  529.537932][ T8014]  ? __check_object_size+0x323/0x730
[  529.543244][ T8014]  netlink_sendmsg+0x93c/0xe40
[  529.548232][ T8014]  ? netlink_unicast+0x810/0x810
[  529.553227][ T8014]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  529.558658][ T8014]  ? netlink_unicast+0x810/0x810
[  529.564024][ T8014]  __sock_sendmsg+0xd5/0x180
[  529.569099][ T8014]  ____sys_sendmsg+0x6ac/0x940
[  529.573976][ T8014]  ? copy_msghdr_from_user+0x10b/0x160
[  529.579632][ T8014]  ? kernel_sendmsg+0x50/0x50
[  529.584434][ T8014]  ___sys_sendmsg+0x135/0x1d0
[  529.589136][ T8014]  ? do_recvmmsg+0x740/0x740
[  529.593926][ T8014]  ? find_held_lock+0x2d/0x110
[  529.598719][ T8014]  ? preempt_count_sub+0x160/0x160
[  529.603935][ T8014]  ? __fget_light+0x1fc/0x260
[  529.608719][ T8014]  __sys_sendmsg+0x117/0x1e0
[  529.613506][ T8014]  ? __sys_sendmsg_sock+0x30/0x30
[  529.618669][ T8014]  ? syscall_enter_from_user_mode+0x7f/0x120
[  529.625314][ T8014]  do_syscall_64+0x40/0x110
[  529.630023][ T8014]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  529.635946][ T8014] RIP: 0033:0x7fb700fd30b9
[  529.640542][ T8014] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  529.661050][ T8014] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  529.669764][ T8014] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  529.678699][ T8014] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  529.686873][ T8014] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  529.695057][ T8014] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  529.703391][ T8014] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  529.711502][ T8014]  </TASK>
[  529.716420][ T8014] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  529.770503][ T8015] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  529.782552][ T8015] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  529.792173][ T8015] CPU: 1 PID: 8015 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  529.802971][ T8015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  529.814786][ T8015] Call Trace:
[  529.818871][ T8015]  <TASK>
[  529.822097][ T8015]  dump_stack_lvl+0x125/0x1b0
[  529.827014][ T8015]  sysfs_warn_dup+0x7f/0xa0
[  529.832133][ T8015]  sysfs_create_dir_ns+0x249/0x2b0
[  529.838533][ T8015]  ? sysfs_create_mount_point+0xb0/0xb0
[  529.844390][ T8015]  ? spin_bug+0x1d0/0x1d0
[  529.848858][ T8015]  ? net_namespace+0x12/0x40
[  529.854085][ T8015]  ? device_namespace+0x8d/0xc0
[  529.859308][ T8015]  kobject_add_internal+0x2c8/0x970
[  529.864723][ T8015]  kobject_add+0x16f/0x240
[  529.870952][ T8015]  ? kset_create_and_add+0x190/0x190
[  529.876547][ T8015]  ? do_raw_spin_unlock+0x173/0x230
[  529.882100][ T8015]  ? kobject_put+0xbe/0x440
[  529.887280][ T8015]  ? device_add+0xc35/0x1aa0
[  529.892171][ T8015]  device_add+0x289/0x1aa0
[  529.896953][ T8015]  ? device_initialize+0x510/0x510
[  529.902719][ T8015]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  529.909617][ T8015]  ? __init_waitqueue_head+0xca/0x150
[  529.915619][ T8015]  netdev_register_kobject+0x183/0x3f0
[  529.921701][ T8015]  register_netdevice+0xbe6/0x14b0
[  529.927354][ T8015]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  529.933516][ T8015]  ? validate_linkmsg+0x6fc/0x9c0
[  529.939014][ T8015]  br_dev_newlink+0x27/0x110
[  529.944021][ T8015]  ? br_changelink+0x1760/0x1760
[  529.949070][ T8015]  __rtnl_newlink+0x1173/0x1930
[  529.956651][ T8015]  ? rtnl_link_unregister+0x260/0x260
[  529.962237][ T8015]  rtnl_newlink+0x67/0xa0
[  529.966670][ T8015]  ? __rtnl_newlink+0x1930/0x1930
[  529.972043][ T8015]  rtnetlink_rcv_msg+0x3c7/0xe00
[  529.977276][ T8015]  ? rtnl_fill_vf+0x4a0/0x4a0
[  529.982331][ T8015]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  529.988884][ T8015]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  529.995677][ T8015]  netlink_rcv_skb+0x16b/0x440
[  530.000989][ T8015]  ? rtnl_fill_vf+0x4a0/0x4a0
[  530.006135][ T8015]  ? netlink_ack+0x1380/0x1380
[  530.011054][ T8015]  ? lock_sync+0x190/0x190
[  530.015628][ T8015]  ? netlink_deliver_tap+0x1a0/0xd00
[  530.021108][ T8015]  ? _copy_from_iter+0x2c1/0x10f0
[  530.026399][ T8015]  netlink_unicast+0x53b/0x810
[  530.031552][ T8015]  ? netlink_attachskb+0x880/0x880
[  530.036780][ T8015]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  530.042813][ T8015]  ? __phys_addr_symbol+0x30/0x70
[  530.047955][ T8015]  ? __check_object_size+0x323/0x730
[  530.053337][ T8015]  netlink_sendmsg+0x93c/0xe40
[  530.058495][ T8015]  ? netlink_unicast+0x810/0x810
[  530.063452][ T8015]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  530.069096][ T8015]  ? netlink_unicast+0x810/0x810
[  530.074040][ T8015]  __sock_sendmsg+0xd5/0x180
[  530.078719][ T8015]  ____sys_sendmsg+0x6ac/0x940
[  530.083580][ T8015]  ? copy_msghdr_from_user+0x10b/0x160
[  530.089037][ T8015]  ? kernel_sendmsg+0x50/0x50
[  530.093750][ T8015]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  530.100081][ T8015]  ___sys_sendmsg+0x135/0x1d0
[  530.104777][ T8015]  ? do_recvmmsg+0x740/0x740
[  530.109384][ T8015]  ? find_held_lock+0x2d/0x110
[  530.114272][ T8015]  ? preempt_count_sub+0x160/0x160
[  530.119506][ T8015]  ? __fget_light+0x1fc/0x260
[  530.124660][ T8015]  __sys_sendmsg+0x117/0x1e0
[  530.129606][ T8015]  ? __sys_sendmsg_sock+0x30/0x30
[  530.134650][ T8015]  ? syscall_enter_from_user_mode+0x7f/0x120
[  530.141183][ T8015]  do_syscall_64+0x40/0x110
[  530.146566][ T8015]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  530.152937][ T8015] RIP: 0033:0x7fb700fd30b9
[  530.157410][ T8015] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  530.177669][ T8015] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  530.186634][ T8015] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  530.194871][ T8015] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  530.203109][ T8015] RBP: 000000000008115f R08: 0000000000000000 R09: 0000000000000006
[  530.211167][ T8015] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  530.219513][ T8015] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  530.228424][ T8015]  </TASK>
[  530.233594][ T8015] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  530.287041][ T8015] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  530.296658][ T8015] CPU: 0 PID: 8015 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  530.307014][ T8015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  530.317168][ T8015] Call Trace:
[  530.320453][ T8015]  <TASK>
[  530.323389][ T8015]  dump_stack_lvl+0x125/0x1b0
[  530.328178][ T8015]  sysfs_warn_dup+0x7f/0xa0
[  530.333141][ T8015]  sysfs_create_dir_ns+0x249/0x2b0
[  530.338882][ T8015]  ? sysfs_create_mount_point+0xb0/0xb0
[  530.346615][ T8015]  ? spin_bug+0x1d0/0x1d0
[  530.351121][ T8015]  ? hlock_class+0x4e/0x130
[  530.355660][ T8015]  ? net_namespace+0x12/0x40
[  530.360347][ T8015]  ? device_namespace+0x8d/0xc0
[  530.365206][ T8015]  kobject_add_internal+0x2c8/0x970
[  530.370598][ T8015]  kobject_add+0x16f/0x240
[  530.375034][ T8015]  ? kset_create_and_add+0x190/0x190
[  530.380491][ T8015]  ? kobject_put+0xbe/0x440
[  530.385111][ T8015]  ? device_add+0xc35/0x1aa0
[  530.389698][ T8015]  device_add+0x289/0x1aa0
[  530.394221][ T8015]  ? device_initialize+0x510/0x510
[  530.399350][ T8015]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  530.406399][ T8015]  ? __init_waitqueue_head+0xca/0x150
[  530.411790][ T8015]  netdev_register_kobject+0x183/0x3f0
[  530.417349][ T8015]  register_netdevice+0xbe6/0x14b0
[  530.422474][ T8015]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  530.428406][ T8015]  ? validate_linkmsg+0x6fc/0x9c0
[  530.433635][ T8015]  br_dev_newlink+0x27/0x110
[  530.438514][ T8015]  ? br_changelink+0x1760/0x1760
[  530.444151][ T8015]  __rtnl_newlink+0x1173/0x1930
[  530.449302][ T8015]  ? rtnl_link_unregister+0x260/0x260
[  530.454806][ T8015]  rtnl_newlink+0x67/0xa0
[  530.459276][ T8015]  ? __rtnl_newlink+0x1930/0x1930
[  530.464758][ T8015]  rtnetlink_rcv_msg+0x3c7/0xe00
[  530.469716][ T8015]  ? rtnl_fill_vf+0x4a0/0x4a0
[  530.474495][ T8015]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  530.480573][ T8015]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  530.486923][ T8015]  netlink_rcv_skb+0x16b/0x440
[  530.491814][ T8015]  ? rtnl_fill_vf+0x4a0/0x4a0
[  530.496578][ T8015]  ? netlink_ack+0x1380/0x1380
[  530.501535][ T8015]  ? lock_sync+0x190/0x190
[  530.506252][ T8015]  ? netlink_deliver_tap+0x1a0/0xd00
[  530.511913][ T8015]  ? _copy_from_iter+0x2c1/0x10f0
[  530.517333][ T8015]  netlink_unicast+0x53b/0x810
[  530.522354][ T8015]  ? netlink_attachskb+0x880/0x880
[  530.527503][ T8015]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  530.533596][ T8015]  ? __phys_addr_symbol+0x30/0x70
[  530.538763][ T8015]  ? __check_object_size+0x323/0x730
[  530.544528][ T8015]  netlink_sendmsg+0x93c/0xe40
[  530.549910][ T8015]  ? netlink_unicast+0x810/0x810
[  530.554965][ T8015]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  530.560562][ T8015]  ? netlink_unicast+0x810/0x810
[  530.565708][ T8015]  __sock_sendmsg+0xd5/0x180
[  530.570452][ T8015]  ____sys_sendmsg+0x6ac/0x940
[  530.575501][ T8015]  ? copy_msghdr_from_user+0x10b/0x160
[  530.581085][ T8015]  ? kernel_sendmsg+0x50/0x50
[  530.586228][ T8015]  ? hlock_class+0x4e/0x130
[  530.590843][ T8015]  ? __lock_acquire+0x14e0/0x3b10
[  530.595911][ T8015]  ___sys_sendmsg+0x135/0x1d0
[  530.600793][ T8015]  ? do_recvmmsg+0x740/0x740
[  530.605653][ T8015]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  530.611732][ T8015]  ? find_held_lock+0x2d/0x110
[  530.617307][ T8015]  ? __fget_light+0x1fc/0x260
[  530.621984][ T8015]  __sys_sendmsg+0x117/0x1e0
[  530.626576][ T8015]  ? __sys_sendmsg_sock+0x30/0x30
[  530.631593][ T8015]  ? xfd_validate_state+0x5d/0x180
[  530.636808][ T8015]  ? syscall_enter_from_user_mode+0x7f/0x120
[  530.642881][ T8015]  do_syscall_64+0x40/0x110
[  530.647390][ T8015]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  530.653392][ T8015] RIP: 0033:0x7fb700fd30b9
[  530.657817][ T8015] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  530.677774][ T8015] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  530.686441][ T8015] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  530.694698][ T8015] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  530.702831][ T8015] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  530.711403][ T8015] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  530.719390][ T8015] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  530.727562][ T8015]  </TASK>
[  530.731665][ T8015] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  530.790711][ T8016] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  530.801076][ T8016] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  530.810815][ T8016] CPU: 0 PID: 8016 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  530.821777][ T8016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  530.832803][ T8016] Call Trace:
[  530.836261][ T8016]  <TASK>
[  530.839207][ T8016]  dump_stack_lvl+0x125/0x1b0
[  530.844118][ T8016]  sysfs_warn_dup+0x7f/0xa0
[  530.848726][ T8016]  sysfs_create_dir_ns+0x249/0x2b0
[  530.854134][ T8016]  ? sysfs_create_mount_point+0xb0/0xb0
[  530.859790][ T8016]  ? spin_bug+0x1d0/0x1d0
[  530.864135][ T8016]  ? net_namespace+0x12/0x40
[  530.868737][ T8016]  ? device_namespace+0x8d/0xc0
[  530.873735][ T8016]  kobject_add_internal+0x2c8/0x970
[  530.878968][ T8016]  kobject_add+0x16f/0x240
[  530.883641][ T8016]  ? kset_create_and_add+0x190/0x190
[  530.888953][ T8016]  ? do_raw_spin_unlock+0x173/0x230
[  530.894593][ T8016]  ? kobject_put+0xbe/0x440
[  530.899294][ T8016]  ? device_add+0xc35/0x1aa0
[  530.903967][ T8016]  device_add+0x289/0x1aa0
[  530.908492][ T8016]  ? device_initialize+0x510/0x510
[  530.914141][ T8016]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  530.921741][ T8016]  ? __init_waitqueue_head+0xca/0x150
[  530.927659][ T8016]  netdev_register_kobject+0x183/0x3f0
[  530.933836][ T8016]  register_netdevice+0xbe6/0x14b0
[  530.939399][ T8016]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  530.945827][ T8016]  ? validate_linkmsg+0x6fc/0x9c0
[  530.951124][ T8016]  br_dev_newlink+0x27/0x110
[  530.955811][ T8016]  ? br_changelink+0x1760/0x1760
[  530.960936][ T8016]  __rtnl_newlink+0x1173/0x1930
[  530.965989][ T8016]  ? rtnl_link_unregister+0x260/0x260
[  530.971669][ T8016]  rtnl_newlink+0x67/0xa0
[  530.976005][ T8016]  ? __rtnl_newlink+0x1930/0x1930
[  530.981046][ T8016]  rtnetlink_rcv_msg+0x3c7/0xe00
[  530.986255][ T8016]  ? rtnl_fill_vf+0x4a0/0x4a0
[  530.991117][ T8016]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  530.997466][ T8016]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  531.003565][ T8016]  netlink_rcv_skb+0x16b/0x440
[  531.008604][ T8016]  ? rtnl_fill_vf+0x4a0/0x4a0
[  531.013382][ T8016]  ? netlink_ack+0x1380/0x1380
[  531.018764][ T8016]  ? lock_sync+0x190/0x190
[  531.023309][ T8016]  ? netlink_deliver_tap+0x1a0/0xd00
[  531.028610][ T8016]  ? _copy_from_iter+0x2c1/0x10f0
[  531.033822][ T8016]  netlink_unicast+0x53b/0x810
[  531.038774][ T8016]  ? netlink_attachskb+0x880/0x880
[  531.043893][ T8016]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  531.050085][ T8016]  ? __phys_addr_symbol+0x30/0x70
[  531.055250][ T8016]  ? __check_object_size+0x323/0x730
[  531.060727][ T8016]  netlink_sendmsg+0x93c/0xe40
[  531.065958][ T8016]  ? netlink_unicast+0x810/0x810
[  531.071174][ T8016]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  531.076471][ T8016]  ? netlink_unicast+0x810/0x810
[  531.081944][ T8016]  __sock_sendmsg+0xd5/0x180
[  531.086550][ T8016]  ____sys_sendmsg+0x6ac/0x940
[  531.091592][ T8016]  ? copy_msghdr_from_user+0x10b/0x160
[  531.097197][ T8016]  ? kernel_sendmsg+0x50/0x50
[  531.102281][ T8016]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  531.108884][ T8016]  ___sys_sendmsg+0x135/0x1d0
[  531.113750][ T8016]  ? do_recvmmsg+0x740/0x740
[  531.118608][ T8016]  ? find_held_lock+0x2d/0x110
[  531.123488][ T8016]  ? preempt_count_sub+0x160/0x160
[  531.128702][ T8016]  ? __fget_light+0x1fc/0x260
[  531.133558][ T8016]  __sys_sendmsg+0x117/0x1e0
[  531.138560][ T8016]  ? __sys_sendmsg_sock+0x30/0x30
[  531.143816][ T8016]  ? syscall_enter_from_user_mode+0x7f/0x120
[  531.149812][ T8016]  do_syscall_64+0x40/0x110
[  531.154524][ T8016]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  531.160517][ T8016] RIP: 0033:0x7fb700fd30b9
[  531.164931][ T8016] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  531.185348][ T8016] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  531.193976][ T8016] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  531.202062][ T8016] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  531.210333][ T8016] RBP: 000000000008153d R08: 0000000000000000 R09: 0000000000000006
[  531.218913][ T8016] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  531.227400][ T8016] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  531.236187][ T8016]  </TASK>
[  531.240204][ T8016] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  531.315589][ T8016] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  531.324995][ T8016] CPU: 0 PID: 8016 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  531.335097][ T8016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  531.345870][ T8016] Call Trace:
[  531.349315][ T8016]  <TASK>
[  531.352272][ T8016]  dump_stack_lvl+0x125/0x1b0
[  531.357921][ T8016]  sysfs_warn_dup+0x7f/0xa0
[  531.362516][ T8016]  sysfs_create_dir_ns+0x249/0x2b0
[  531.367895][ T8016]  ? sysfs_create_mount_point+0xb0/0xb0
[  531.374345][ T8016]  ? spin_bug+0x1d0/0x1d0
[  531.378948][ T8016]  ? net_namespace+0x12/0x40
[  531.384586][ T8016]  ? device_namespace+0x8d/0xc0
[  531.389714][ T8016]  kobject_add_internal+0x2c8/0x970
[  531.396162][ T8016]  kobject_add+0x16f/0x240
[  531.400808][ T8016]  ? kset_create_and_add+0x190/0x190
[  531.406131][ T8016]  ? do_raw_spin_unlock+0x173/0x230
[  531.411560][ T8016]  ? kobject_put+0xbe/0x440
[  531.416096][ T8016]  ? device_add+0xc35/0x1aa0
[  531.420816][ T8016]  device_add+0x289/0x1aa0
[  531.425516][ T8016]  ? device_initialize+0x510/0x510
[  531.430727][ T8016]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  531.437967][ T8016]  ? __init_waitqueue_head+0xca/0x150
[  531.443450][ T8016]  netdev_register_kobject+0x183/0x3f0
[  531.449020][ T8016]  register_netdevice+0xbe6/0x14b0
[  531.454309][ T8016]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  531.460402][ T8016]  ? validate_linkmsg+0x6fc/0x9c0
[  531.465440][ T8016]  br_dev_newlink+0x27/0x110
[  531.470122][ T8016]  ? br_changelink+0x1760/0x1760
[  531.475152][ T8016]  __rtnl_newlink+0x1173/0x1930
[  531.480034][ T8016]  ? rtnl_link_unregister+0x260/0x260
[  531.485873][ T8016]  rtnl_newlink+0x67/0xa0
[  531.490501][ T8016]  ? __rtnl_newlink+0x1930/0x1930
[  531.495540][ T8016]  rtnetlink_rcv_msg+0x3c7/0xe00
[  531.500591][ T8016]  ? rtnl_fill_vf+0x4a0/0x4a0
[  531.505456][ T8016]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  531.511739][ T8016]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  531.518112][ T8016]  netlink_rcv_skb+0x16b/0x440
[  531.523066][ T8016]  ? rtnl_fill_vf+0x4a0/0x4a0
[  531.527783][ T8016]  ? netlink_ack+0x1380/0x1380
[  531.532842][ T8016]  ? lock_sync+0x190/0x190
[  531.537455][ T8016]  ? netlink_deliver_tap+0x1a0/0xd00
[  531.542840][ T8016]  ? _copy_from_iter+0x2c1/0x10f0
[  531.547975][ T8016]  netlink_unicast+0x53b/0x810
[  531.552932][ T8016]  ? netlink_attachskb+0x880/0x880
[  531.558051][ T8016]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  531.564127][ T8016]  ? __phys_addr_symbol+0x30/0x70
[  531.569333][ T8016]  ? __check_object_size+0x323/0x730
[  531.574830][ T8016]  netlink_sendmsg+0x93c/0xe40
[  531.579701][ T8016]  ? netlink_unicast+0x810/0x810
[  531.584740][ T8016]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  531.590040][ T8016]  ? netlink_unicast+0x810/0x810
[  531.595165][ T8016]  __sock_sendmsg+0xd5/0x180
[  531.599763][ T8016]  ____sys_sendmsg+0x6ac/0x940
[  531.604556][ T8016]  ? copy_msghdr_from_user+0x10b/0x160
[  531.610233][ T8016]  ? kernel_sendmsg+0x50/0x50
[  531.614944][ T8016]  ___sys_sendmsg+0x135/0x1d0
[  531.619640][ T8016]  ? do_recvmmsg+0x740/0x740
[  531.624262][ T8016]  ? find_held_lock+0x2d/0x110
[  531.629061][ T8016]  ? preempt_count_sub+0x160/0x160
[  531.634278][ T8016]  ? __fget_light+0x1fc/0x260
[  531.639084][ T8016]  __sys_sendmsg+0x117/0x1e0
[  531.643689][ T8016]  ? __sys_sendmsg_sock+0x30/0x30
[  531.648825][ T8016]  ? syscall_enter_from_user_mode+0x7f/0x120
[  531.654836][ T8016]  do_syscall_64+0x40/0x110
[  531.659879][ T8016]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  531.665800][ T8016] RIP: 0033:0x7fb700fd30b9
[  531.670311][ T8016] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  531.690629][ T8016] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  531.699219][ T8016] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  531.707292][ T8016] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  531.715464][ T8016] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  531.723535][ T8016] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  531.731611][ T8016] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  531.740044][ T8016]  </TASK>
[  531.744608][ T8016] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  531.812032][ T8017] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  531.823181][ T8017] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  531.832482][ T8017] CPU: 1 PID: 8017 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  531.842899][ T8017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  531.853124][ T8017] Call Trace:
[  531.856659][ T8017]  <TASK>
[  531.860565][ T8017]  dump_stack_lvl+0x125/0x1b0
[  531.865347][ T8017]  sysfs_warn_dup+0x7f/0xa0
[  531.869977][ T8017]  sysfs_create_dir_ns+0x249/0x2b0
[  531.875097][ T8017]  ? sysfs_create_mount_point+0xb0/0xb0
[  531.880816][ T8017]  ? spin_bug+0x1d0/0x1d0
[  531.885334][ T8017]  ? net_namespace+0x12/0x40
[  531.890017][ T8017]  ? device_namespace+0x8d/0xc0
[  531.894967][ T8017]  kobject_add_internal+0x2c8/0x970
[  531.900353][ T8017]  kobject_add+0x16f/0x240
[  531.904938][ T8017]  ? kset_create_and_add+0x190/0x190
[  531.910322][ T8017]  ? do_raw_spin_unlock+0x173/0x230
[  531.915704][ T8017]  ? kobject_put+0xbe/0x440
[  531.920233][ T8017]  ? device_add+0xc35/0x1aa0
[  531.925291][ T8017]  device_add+0x289/0x1aa0
[  531.929984][ T8017]  ? device_initialize+0x510/0x510
[  531.935361][ T8017]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  531.942416][ T8017]  ? __init_waitqueue_head+0xca/0x150
[  531.948434][ T8017]  netdev_register_kobject+0x183/0x3f0
[  531.954355][ T8017]  register_netdevice+0xbe6/0x14b0
[  531.959589][ T8017]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  531.965488][ T8017]  ? validate_linkmsg+0x6fc/0x9c0
[  531.970706][ T8017]  br_dev_newlink+0x27/0x110
[  531.975315][ T8017]  ? br_changelink+0x1760/0x1760
[  531.980432][ T8017]  __rtnl_newlink+0x1173/0x1930
[  531.986888][ T8017]  ? rtnl_link_unregister+0x260/0x260
[  531.992700][ T8017]  rtnl_newlink+0x67/0xa0
[  531.997253][ T8017]  ? __rtnl_newlink+0x1930/0x1930
[  532.002440][ T8017]  rtnetlink_rcv_msg+0x3c7/0xe00
[  532.007592][ T8017]  ? rtnl_fill_vf+0x4a0/0x4a0
[  532.012386][ T8017]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  532.018391][ T8017]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  532.024666][ T8017]  netlink_rcv_skb+0x16b/0x440
[  532.029621][ T8017]  ? rtnl_fill_vf+0x4a0/0x4a0
[  532.034390][ T8017]  ? netlink_ack+0x1380/0x1380
[  532.039418][ T8017]  ? lock_sync+0x190/0x190
[  532.043854][ T8017]  ? netlink_deliver_tap+0x1a0/0xd00
[  532.049355][ T8017]  ? _copy_from_iter+0x2c1/0x10f0
[  532.054664][ T8017]  netlink_unicast+0x53b/0x810
[  532.059702][ T8017]  ? netlink_attachskb+0x880/0x880
[  532.065017][ T8017]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  532.071023][ T8017]  ? __phys_addr_symbol+0x30/0x70
[  532.076233][ T8017]  ? __check_object_size+0x323/0x730
[  532.081779][ T8017]  netlink_sendmsg+0x93c/0xe40
[  532.086635][ T8017]  ? netlink_unicast+0x810/0x810
[  532.091596][ T8017]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  532.097205][ T8017]  ? netlink_unicast+0x810/0x810
[  532.102458][ T8017]  __sock_sendmsg+0xd5/0x180
[  532.107064][ T8017]  ____sys_sendmsg+0x6ac/0x940
[  532.112097][ T8017]  ? copy_msghdr_from_user+0x10b/0x160
[  532.118114][ T8017]  ? kernel_sendmsg+0x50/0x50
[  532.122884][ T8017]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  532.129038][ T8017]  ___sys_sendmsg+0x135/0x1d0
[  532.133806][ T8017]  ? do_recvmmsg+0x740/0x740
[  532.138704][ T8017]  ? find_held_lock+0x2d/0x110
[  532.143748][ T8017]  ? preempt_count_sub+0x160/0x160
[  532.149049][ T8017]  ? __fget_light+0x1fc/0x260
[  532.153814][ T8017]  __sys_sendmsg+0x117/0x1e0
[  532.158503][ T8017]  ? __sys_sendmsg_sock+0x30/0x30
[  532.163722][ T8017]  ? xfd_validate_state+0x5d/0x180
[  532.168864][ T8017]  ? syscall_enter_from_user_mode+0x7f/0x120
[  532.175454][ T8017]  do_syscall_64+0x40/0x110
[  532.180067][ T8017]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  532.186755][ T8017] RIP: 0033:0x7fb700fd30b9
[  532.191703][ T8017] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  532.212474][ T8017] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  532.222070][ T8017] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  532.230570][ T8017] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  532.238745][ T8017] RBP: 0000000000081939 R08: 0000000000000000 R09: 0000000000000006
[  532.246894][ T8017] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  532.254863][ T8017] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  532.262930][ T8017]  </TASK>
[  532.268020][ T8017] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  532.326101][ T8017] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  532.335616][ T8017] CPU: 1 PID: 8017 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  532.346387][ T8017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  532.357057][ T8017] Call Trace:
[  532.360441][ T8017]  <TASK>
[  532.363555][ T8017]  dump_stack_lvl+0x125/0x1b0
[  532.368515][ T8017]  sysfs_warn_dup+0x7f/0xa0
[  532.373214][ T8017]  sysfs_create_dir_ns+0x249/0x2b0
[  532.378782][ T8017]  ? sysfs_create_mount_point+0xb0/0xb0
[  532.384426][ T8017]  ? spin_bug+0x1d0/0x1d0
[  532.388758][ T8017]  ? net_namespace+0x12/0x40
[  532.393451][ T8017]  ? device_namespace+0x8d/0xc0
[  532.398407][ T8017]  kobject_add_internal+0x2c8/0x970
[  532.403830][ T8017]  kobject_add+0x16f/0x240
[  532.408604][ T8017]  ? kset_create_and_add+0x190/0x190
[  532.413919][ T8017]  ? do_raw_spin_unlock+0x173/0x230
[  532.419227][ T8017]  ? kobject_put+0xbe/0x440
[  532.423753][ T8017]  ? device_add+0xc35/0x1aa0
[  532.428540][ T8017]  device_add+0x289/0x1aa0
[  532.432967][ T8017]  ? device_initialize+0x510/0x510
[  532.438345][ T8017]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  532.445990][ T8017]  ? __init_waitqueue_head+0xca/0x150
[  532.451374][ T8017]  netdev_register_kobject+0x183/0x3f0
[  532.456952][ T8017]  register_netdevice+0xbe6/0x14b0
[  532.462441][ T8017]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  532.468520][ T8017]  ? validate_linkmsg+0x6fc/0x9c0
[  532.474163][ T8017]  br_dev_newlink+0x27/0x110
[  532.478858][ T8017]  ? br_changelink+0x1760/0x1760
[  532.483804][ T8017]  __rtnl_newlink+0x1173/0x1930
[  532.489547][ T8017]  ? rtnl_link_unregister+0x260/0x260
[  532.495250][ T8017]  rtnl_newlink+0x67/0xa0
[  532.499875][ T8017]  ? __rtnl_newlink+0x1930/0x1930
[  532.504994][ T8017]  rtnetlink_rcv_msg+0x3c7/0xe00
[  532.510025][ T8017]  ? rtnl_fill_vf+0x4a0/0x4a0
[  532.514745][ T8017]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  532.521038][ T8017]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  532.527080][ T8017]  netlink_rcv_skb+0x16b/0x440
[  532.531875][ T8017]  ? rtnl_fill_vf+0x4a0/0x4a0
[  532.536566][ T8017]  ? netlink_ack+0x1380/0x1380
[  532.541343][ T8017]  ? lock_sync+0x190/0x190
[  532.546538][ T8017]  ? netlink_deliver_tap+0x1a0/0xd00
[  532.552301][ T8017]  ? _copy_from_iter+0x2c1/0x10f0
[  532.558065][ T8017]  netlink_unicast+0x53b/0x810
[  532.563379][ T8017]  ? netlink_attachskb+0x880/0x880
[  532.568621][ T8017]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  532.574874][ T8017]  ? __phys_addr_symbol+0x30/0x70
[  532.579983][ T8017]  ? __check_object_size+0x323/0x730
[  532.585474][ T8017]  netlink_sendmsg+0x93c/0xe40
[  532.590365][ T8017]  ? netlink_unicast+0x810/0x810
[  532.595423][ T8017]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  532.600840][ T8017]  ? netlink_unicast+0x810/0x810
[  532.605823][ T8017]  __sock_sendmsg+0xd5/0x180
[  532.610520][ T8017]  ____sys_sendmsg+0x6ac/0x940
[  532.615292][ T8017]  ? copy_msghdr_from_user+0x10b/0x160
[  532.620932][ T8017]  ? kernel_sendmsg+0x50/0x50
[  532.626170][ T8017]  ? hlock_class+0x4e/0x130
[  532.631006][ T8017]  ? __lock_acquire+0x14e0/0x3b10
[  532.636228][ T8017]  ___sys_sendmsg+0x135/0x1d0
[  532.640937][ T8017]  ? do_recvmmsg+0x740/0x740
[  532.645558][ T8017]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  532.651565][ T8017]  ? find_held_lock+0x2d/0x110
[  532.656387][ T8017]  ? __fget_light+0x1fc/0x260
[  532.661090][ T8017]  __sys_sendmsg+0x117/0x1e0
[  532.665703][ T8017]  ? __sys_sendmsg_sock+0x30/0x30
[  532.670743][ T8017]  ? __do_sys_rseq+0x750/0x750
[  532.675532][ T8017]  ? syscall_enter_from_user_mode+0x7f/0x120
[  532.681616][ T8017]  do_syscall_64+0x40/0x110
[  532.686314][ T8017]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  532.692512][ T8017] RIP: 0033:0x7fb700fd30b9
[  532.696941][ T8017] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  532.717171][ T8017] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  532.725710][ T8017] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  532.733789][ T8017] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  532.741874][ T8017] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  532.750652][ T8017] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  532.758648][ T8017] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  532.767185][ T8017]  </TASK>
[  532.772132][ T8017] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  532.841916][ T8018] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  532.852882][ T8018] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  532.862809][ T8018] CPU: 0 PID: 8018 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  532.873433][ T8018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  532.883941][ T8018] Call Trace:
[  532.887475][ T8018]  <TASK>
[  532.890517][ T8018]  dump_stack_lvl+0x125/0x1b0
[  532.895206][ T8018]  sysfs_warn_dup+0x7f/0xa0
[  532.899762][ T8018]  sysfs_create_dir_ns+0x249/0x2b0
[  532.904912][ T8018]  ? sysfs_create_mount_point+0xb0/0xb0
[  532.910816][ T8018]  ? spin_bug+0x1d0/0x1d0
[  532.915345][ T8018]  ? net_namespace+0x12/0x40
[  532.920050][ T8018]  ? device_namespace+0x8d/0xc0
[  532.924959][ T8018]  kobject_add_internal+0x2c8/0x970
[  532.930704][ T8018]  kobject_add+0x16f/0x240
[  532.935178][ T8018]  ? kset_create_and_add+0x190/0x190
[  532.940781][ T8018]  ? do_raw_spin_unlock+0x173/0x230
[  532.946460][ T8018]  ? kobject_put+0xbe/0x440
[  532.951230][ T8018]  ? device_add+0xc35/0x1aa0
[  532.956274][ T8018]  device_add+0x289/0x1aa0
[  532.961166][ T8018]  ? device_initialize+0x510/0x510
[  532.966746][ T8018]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  532.975226][ T8018]  ? __init_waitqueue_head+0xca/0x150
[  532.981715][ T8018]  netdev_register_kobject+0x183/0x3f0
[  532.987518][ T8018]  register_netdevice+0xbe6/0x14b0
[  532.993125][ T8018]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  532.999468][ T8018]  ? validate_linkmsg+0x6fc/0x9c0
[  533.004770][ T8018]  br_dev_newlink+0x27/0x110
[  533.009820][ T8018]  ? br_changelink+0x1760/0x1760
[  533.015051][ T8018]  __rtnl_newlink+0x1173/0x1930
[  533.020028][ T8018]  ? rtnl_link_unregister+0x260/0x260
[  533.025704][ T8018]  rtnl_newlink+0x67/0xa0
[  533.030174][ T8018]  ? __rtnl_newlink+0x1930/0x1930
[  533.035815][ T8018]  rtnetlink_rcv_msg+0x3c7/0xe00
[  533.040888][ T8018]  ? rtnl_fill_vf+0x4a0/0x4a0
[  533.045676][ T8018]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  533.051868][ T8018]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  533.058150][ T8018]  netlink_rcv_skb+0x16b/0x440
[  533.063113][ T8018]  ? rtnl_fill_vf+0x4a0/0x4a0
[  533.068151][ T8018]  ? netlink_ack+0x1380/0x1380
[  533.072939][ T8018]  ? lock_sync+0x190/0x190
[  533.077490][ T8018]  ? netlink_deliver_tap+0x1a0/0xd00
[  533.083092][ T8018]  ? _copy_from_iter+0x2c1/0x10f0
[  533.088320][ T8018]  netlink_unicast+0x53b/0x810
[  533.093116][ T8018]  ? netlink_attachskb+0x880/0x880
[  533.098600][ T8018]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  533.104684][ T8018]  ? __phys_addr_symbol+0x30/0x70
[  533.110255][ T8018]  ? __check_object_size+0x323/0x730
[  533.115895][ T8018]  netlink_sendmsg+0x93c/0xe40
[  533.120672][ T8018]  ? netlink_unicast+0x810/0x810
[  533.125894][ T8018]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  533.131370][ T8018]  ? netlink_unicast+0x810/0x810
[  533.136478][ T8018]  __sock_sendmsg+0xd5/0x180
[  533.141347][ T8018]  ____sys_sendmsg+0x6ac/0x940
[  533.146237][ T8018]  ? copy_msghdr_from_user+0x10b/0x160
[  533.151908][ T8018]  ? kernel_sendmsg+0x50/0x50
[  533.156791][ T8018]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  533.162895][ T8018]  ___sys_sendmsg+0x135/0x1d0
[  533.167781][ T8018]  ? do_recvmmsg+0x740/0x740
[  533.172557][ T8018]  ? find_held_lock+0x2d/0x110
[  533.177453][ T8018]  ? preempt_count_sub+0x160/0x160
[  533.182901][ T8018]  ? __fget_light+0x1fc/0x260
[  533.187703][ T8018]  __sys_sendmsg+0x117/0x1e0
[  533.192494][ T8018]  ? __sys_sendmsg_sock+0x30/0x30
[  533.197750][ T8018]  ? xfd_validate_state+0x5d/0x180
[  533.203536][ T8018]  ? syscall_enter_from_user_mode+0x7f/0x120
[  533.209747][ T8018]  do_syscall_64+0x40/0x110
[  533.214862][ T8018]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  533.221307][ T8018] RIP: 0033:0x7fb700fd30b9
[  533.226013][ T8018] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  533.248674][ T8018] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  533.257193][ T8018] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  533.265267][ T8018] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  533.273499][ T8018] RBP: 0000000000081d37 R08: 0000000000000000 R09: 0000000000000006
[  533.281910][ T8018] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  533.290154][ T8018] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  533.298622][ T8018]  </TASK>
[  533.302361][ T8018] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  533.356018][ T8018] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  533.365499][ T8018] CPU: 0 PID: 8018 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  533.375835][ T8018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  533.386067][ T8018] Call Trace:
[  533.389359][ T8018]  <TASK>
[  533.392294][ T8018]  dump_stack_lvl+0x125/0x1b0
[  533.396999][ T8018]  sysfs_warn_dup+0x7f/0xa0
[  533.401978][ T8018]  sysfs_create_dir_ns+0x249/0x2b0
[  533.407292][ T8018]  ? sysfs_create_mount_point+0xb0/0xb0
[  533.412859][ T8018]  ? spin_bug+0x1d0/0x1d0
[  533.417222][ T8018]  ? net_namespace+0x12/0x40
[  533.421929][ T8018]  ? device_namespace+0x8d/0xc0
[  533.426904][ T8018]  kobject_add_internal+0x2c8/0x970
[  533.432125][ T8018]  kobject_add+0x16f/0x240
[  533.436557][ T8018]  ? kset_create_and_add+0x190/0x190
[  533.442035][ T8018]  ? do_raw_spin_unlock+0x173/0x230
[  533.447508][ T8018]  ? kobject_put+0xbe/0x440
[  533.452030][ T8018]  ? device_add+0xc35/0x1aa0
[  533.456662][ T8018]  device_add+0x289/0x1aa0
[  533.461179][ T8018]  ? device_initialize+0x510/0x510
[  533.466385][ T8018]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  533.473691][ T8018]  ? __init_waitqueue_head+0xca/0x150
[  533.479417][ T8018]  netdev_register_kobject+0x183/0x3f0
[  533.484904][ T8018]  register_netdevice+0xbe6/0x14b0
[  533.490303][ T8018]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  533.496467][ T8018]  ? validate_linkmsg+0x6fc/0x9c0
[  533.501850][ T8018]  br_dev_newlink+0x27/0x110
[  533.506645][ T8018]  ? br_changelink+0x1760/0x1760
[  533.511613][ T8018]  __rtnl_newlink+0x1173/0x1930
[  533.516657][ T8018]  ? rtnl_link_unregister+0x260/0x260
[  533.522521][ T8018]  rtnl_newlink+0x67/0xa0
[  533.526892][ T8018]  ? __rtnl_newlink+0x1930/0x1930
[  533.531950][ T8018]  rtnetlink_rcv_msg+0x3c7/0xe00
[  533.537158][ T8018]  ? rtnl_fill_vf+0x4a0/0x4a0
[  533.541908][ T8018]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  533.548344][ T8018]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  533.554780][ T8018]  netlink_rcv_skb+0x16b/0x440
[  533.559567][ T8018]  ? rtnl_fill_vf+0x4a0/0x4a0
[  533.564428][ T8018]  ? netlink_ack+0x1380/0x1380
[  533.569204][ T8018]  ? lock_sync+0x190/0x190
[  533.573831][ T8018]  ? netlink_deliver_tap+0x1a0/0xd00
[  533.579212][ T8018]  ? _copy_from_iter+0x2c1/0x10f0
[  533.584720][ T8018]  netlink_unicast+0x53b/0x810
[  533.589884][ T8018]  ? netlink_attachskb+0x880/0x880
[  533.595269][ T8018]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  533.601266][ T8018]  ? __phys_addr_symbol+0x30/0x70
[  533.606385][ T8018]  ? __check_object_size+0x323/0x730
[  533.611688][ T8018]  netlink_sendmsg+0x93c/0xe40
[  533.616737][ T8018]  ? netlink_unicast+0x810/0x810
[  533.621779][ T8018]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  533.627246][ T8018]  ? netlink_unicast+0x810/0x810
[  533.632198][ T8018]  __sock_sendmsg+0xd5/0x180
[  533.636887][ T8018]  ____sys_sendmsg+0x6ac/0x940
[  533.641833][ T8018]  ? copy_msghdr_from_user+0x10b/0x160
[  533.647654][ T8018]  ? kernel_sendmsg+0x50/0x50
[  533.652447][ T8018]  ? hlock_class+0x4e/0x130
[  533.656958][ T8018]  ? __lock_acquire+0x14e0/0x3b10
[  533.662110][ T8018]  ___sys_sendmsg+0x135/0x1d0
[  533.666895][ T8018]  ? do_recvmmsg+0x740/0x740
[  533.671844][ T8018]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  533.677922][ T8018]  ? find_held_lock+0x2d/0x110
[  533.682818][ T8018]  ? __fget_light+0x1fc/0x260
[  533.687764][ T8018]  __sys_sendmsg+0x117/0x1e0
[  533.692370][ T8018]  ? __sys_sendmsg_sock+0x30/0x30
[  533.697406][ T8018]  ? __do_sys_rseq+0x750/0x750
[  533.702375][ T8018]  ? syscall_enter_from_user_mode+0x7f/0x120
[  533.708630][ T8018]  do_syscall_64+0x40/0x110
[  533.713141][ T8018]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  533.719350][ T8018] RIP: 0033:0x7fb700fd30b9
[  533.723867][ T8018] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  533.744662][ T8018] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  533.753257][ T8018] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  533.761496][ T8018] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  533.770029][ T8018] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  533.778533][ T8018] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  533.786856][ T8018] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  533.794943][ T8018]  </TASK>
[  533.799511][ T8018] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  533.870379][ T8019] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  533.881055][ T8019] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  533.890421][ T8019] CPU: 0 PID: 8019 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  533.901077][ T8019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  533.911231][ T8019] Call Trace:
[  533.914524][ T8019]  <TASK>
[  533.917757][ T8019]  dump_stack_lvl+0x125/0x1b0
[  533.922915][ T8019]  sysfs_warn_dup+0x7f/0xa0
[  533.927557][ T8019]  sysfs_create_dir_ns+0x249/0x2b0
[  533.933118][ T8019]  ? sysfs_create_mount_point+0xb0/0xb0
[  533.938769][ T8019]  ? spin_bug+0x1d0/0x1d0
[  533.943149][ T8019]  ? net_namespace+0x12/0x40
[  533.947778][ T8019]  ? device_namespace+0x8d/0xc0
[  533.952753][ T8019]  kobject_add_internal+0x2c8/0x970
[  533.958079][ T8019]  kobject_add+0x16f/0x240
[  533.962512][ T8019]  ? kset_create_and_add+0x190/0x190
[  533.968416][ T8019]  ? do_raw_spin_unlock+0x173/0x230
[  533.973791][ T8019]  ? kobject_put+0xbe/0x440
[  533.978321][ T8019]  ? device_add+0xc35/0x1aa0
[  533.983205][ T8019]  device_add+0x289/0x1aa0
[  533.987662][ T8019]  ? device_initialize+0x510/0x510
[  533.992894][ T8019]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  533.999856][ T8019]  ? __init_waitqueue_head+0xca/0x150
[  534.005424][ T8019]  netdev_register_kobject+0x183/0x3f0
[  534.010988][ T8019]  register_netdevice+0xbe6/0x14b0
[  534.016119][ T8019]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  534.022032][ T8019]  ? validate_linkmsg+0x6fc/0x9c0
[  534.027067][ T8019]  br_dev_newlink+0x27/0x110
[  534.031761][ T8019]  ? br_changelink+0x1760/0x1760
[  534.036902][ T8019]  __rtnl_newlink+0x1173/0x1930
[  534.041872][ T8019]  ? rtnl_link_unregister+0x260/0x260
[  534.047452][ T8019]  rtnl_newlink+0x67/0xa0
[  534.051877][ T8019]  ? __rtnl_newlink+0x1930/0x1930
[  534.057087][ T8019]  rtnetlink_rcv_msg+0x3c7/0xe00
[  534.062039][ T8019]  ? rtnl_fill_vf+0x4a0/0x4a0
[  534.067020][ T8019]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  534.073028][ T8019]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  534.079140][ T8019]  netlink_rcv_skb+0x16b/0x440
[  534.084071][ T8019]  ? rtnl_fill_vf+0x4a0/0x4a0
[  534.088763][ T8019]  ? netlink_ack+0x1380/0x1380
[  534.093535][ T8019]  ? lock_sync+0x190/0x190
[  534.098144][ T8019]  ? netlink_deliver_tap+0x1a0/0xd00
[  534.103651][ T8019]  ? _copy_from_iter+0x2c1/0x10f0
[  534.108820][ T8019]  netlink_unicast+0x53b/0x810
[  534.113745][ T8019]  ? netlink_attachskb+0x880/0x880
[  534.119148][ T8019]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  534.125052][ T8019]  ? __phys_addr_symbol+0x30/0x70
[  534.130257][ T8019]  ? __check_object_size+0x323/0x730
[  534.135551][ T8019]  netlink_sendmsg+0x93c/0xe40
[  534.140628][ T8019]  ? netlink_unicast+0x810/0x810
[  534.145677][ T8019]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  534.151413][ T8019]  ? netlink_unicast+0x810/0x810
[  534.156557][ T8019]  __sock_sendmsg+0xd5/0x180
[  534.161358][ T8019]  ____sys_sendmsg+0x6ac/0x940
[  534.166317][ T8019]  ? copy_msghdr_from_user+0x10b/0x160
[  534.172201][ T8019]  ? kernel_sendmsg+0x50/0x50
[  534.176901][ T8019]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  534.182931][ T8019]  ___sys_sendmsg+0x135/0x1d0
[  534.187729][ T8019]  ? do_recvmmsg+0x740/0x740
[  534.192339][ T8019]  ? find_held_lock+0x2d/0x110
[  534.197131][ T8019]  ? preempt_count_sub+0x160/0x160
[  534.202348][ T8019]  ? __fget_light+0x1fc/0x260
[  534.207144][ T8019]  __sys_sendmsg+0x117/0x1e0
[  534.212308][ T8019]  ? __sys_sendmsg_sock+0x30/0x30
[  534.217463][ T8019]  ? syscall_enter_from_user_mode+0x7f/0x120
[  534.223641][ T8019]  do_syscall_64+0x40/0x110
[  534.228498][ T8019]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  534.234780][ T8019] RIP: 0033:0x7fb700fd30b9
[  534.239483][ T8019] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  534.260052][ T8019] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  534.268666][ T8019] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  534.276825][ T8019] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  534.285247][ T8019] RBP: 000000000008213c R08: 0000000000000000 R09: 0000000000000006
[  534.293577][ T8019] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  534.301662][ T8019] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  534.310011][ T8019]  </TASK>
[  534.314926][ T8019] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  534.355415][ T8019] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  534.364832][ T8019] CPU: 1 PID: 8019 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  534.375257][ T8019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  534.385605][ T8019] Call Trace:
[  534.388983][ T8019]  <TASK>
[  534.391994][ T8019]  dump_stack_lvl+0x125/0x1b0
[  534.396733][ T8019]  sysfs_warn_dup+0x7f/0xa0
[  534.401250][ T8019]  sysfs_create_dir_ns+0x249/0x2b0
[  534.406639][ T8019]  ? sysfs_create_mount_point+0xb0/0xb0
[  534.412624][ T8019]  ? spin_bug+0x1d0/0x1d0
[  534.417106][ T8019]  ? net_namespace+0x12/0x40
[  534.421876][ T8019]  ? device_namespace+0x8d/0xc0
[  534.426762][ T8019]  kobject_add_internal+0x2c8/0x970
[  534.431992][ T8019]  kobject_add+0x16f/0x240
[  534.437045][ T8019]  ? kset_create_and_add+0x190/0x190
[  534.442887][ T8019]  ? do_raw_spin_unlock+0x173/0x230
[  534.448099][ T8019]  ? kobject_put+0xbe/0x440
[  534.453021][ T8019]  ? device_add+0xc35/0x1aa0
[  534.457882][ T8019]  device_add+0x289/0x1aa0
[  534.462393][ T8019]  ? device_initialize+0x510/0x510
[  534.467616][ T8019]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  534.475274][ T8019]  ? __init_waitqueue_head+0xca/0x150
[  534.480929][ T8019]  netdev_register_kobject+0x183/0x3f0
[  534.488046][ T8019]  register_netdevice+0xbe6/0x14b0
[  534.493932][ T8019]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  534.500652][ T8019]  ? validate_linkmsg+0x6fc/0x9c0
[  534.505880][ T8019]  br_dev_newlink+0x27/0x110
[  534.510837][ T8019]  ? br_changelink+0x1760/0x1760
[  534.516042][ T8019]  __rtnl_newlink+0x1173/0x1930
[  534.521534][ T8019]  ? rtnl_link_unregister+0x260/0x260
[  534.527574][ T8019]  rtnl_newlink+0x67/0xa0
[  534.532477][ T8019]  ? __rtnl_newlink+0x1930/0x1930
[  534.537802][ T8019]  rtnetlink_rcv_msg+0x3c7/0xe00
[  534.542857][ T8019]  ? rtnl_fill_vf+0x4a0/0x4a0
[  534.547921][ T8019]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  534.554732][ T8019]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  534.560996][ T8019]  netlink_rcv_skb+0x16b/0x440
[  534.565989][ T8019]  ? rtnl_fill_vf+0x4a0/0x4a0
[  534.571488][ T8019]  ? netlink_ack+0x1380/0x1380
[  534.576366][ T8019]  ? lock_sync+0x190/0x190
[  534.580848][ T8019]  ? netlink_deliver_tap+0x1a0/0xd00
[  534.586251][ T8019]  ? _copy_from_iter+0x2c1/0x10f0
[  534.591562][ T8019]  netlink_unicast+0x53b/0x810
[  534.596433][ T8019]  ? netlink_attachskb+0x880/0x880
[  534.602070][ T8019]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  534.608533][ T8019]  ? __phys_addr_symbol+0x30/0x70
[  534.614028][ T8019]  ? __check_object_size+0x323/0x730
[  534.619735][ T8019]  netlink_sendmsg+0x93c/0xe40
[  534.625200][ T8019]  ? netlink_unicast+0x810/0x810
[  534.630982][ T8019]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  534.636646][ T8019]  ? netlink_unicast+0x810/0x810
[  534.641824][ T8019]  __sock_sendmsg+0xd5/0x180
[  534.646713][ T8019]  ____sys_sendmsg+0x6ac/0x940
[  534.651742][ T8019]  ? copy_msghdr_from_user+0x10b/0x160
[  534.657959][ T8019]  ? kernel_sendmsg+0x50/0x50
[  534.662747][ T8019]  ___sys_sendmsg+0x135/0x1d0
[  534.667528][ T8019]  ? do_recvmmsg+0x740/0x740
[  534.672475][ T8019]  ? find_held_lock+0x2d/0x110
[  534.677300][ T8019]  ? preempt_count_sub+0x160/0x160
[  534.683433][ T8019]  ? __fget_light+0x1fc/0x260
[  534.688318][ T8019]  __sys_sendmsg+0x117/0x1e0
[  534.693232][ T8019]  ? __sys_sendmsg_sock+0x30/0x30
[  534.698494][ T8019]  ? syscall_enter_from_user_mode+0x7f/0x120
[  534.705105][ T8019]  do_syscall_64+0x40/0x110
[  534.709815][ T8019]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  534.715853][ T8019] RIP: 0033:0x7fb700fd30b9
[  534.720729][ T8019] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  534.741381][ T8019] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  534.750077][ T8019] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  534.758337][ T8019] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  534.766918][ T8019] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  534.775515][ T8019] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  534.783767][ T8019] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  534.791979][ T8019]  </TASK>
[  534.796853][ T8019] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  534.861616][ T8020] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  534.872202][ T8020] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  534.881949][ T8020] CPU: 1 PID: 8020 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  534.892316][ T8020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  534.902465][ T8020] Call Trace:
[  534.906040][ T8020]  <TASK>
[  534.909318][ T8020]  dump_stack_lvl+0x125/0x1b0
[  534.914014][ T8020]  sysfs_warn_dup+0x7f/0xa0
[  534.918633][ T8020]  sysfs_create_dir_ns+0x249/0x2b0
[  534.923946][ T8020]  ? sysfs_create_mount_point+0xb0/0xb0
[  534.929841][ T8020]  ? spin_bug+0x1d0/0x1d0
[  534.936226][ T8020]  ? net_namespace+0x12/0x40
[  534.941391][ T8020]  ? device_namespace+0x8d/0xc0
[  534.946543][ T8020]  kobject_add_internal+0x2c8/0x970
[  534.951934][ T8020]  kobject_add+0x16f/0x240
[  534.956534][ T8020]  ? kset_create_and_add+0x190/0x190
[  534.962209][ T8020]  ? do_raw_spin_unlock+0x173/0x230
[  534.967797][ T8020]  ? kobject_put+0xbe/0x440
[  534.972412][ T8020]  ? device_add+0xc35/0x1aa0
[  534.977108][ T8020]  device_add+0x289/0x1aa0
[  534.981533][ T8020]  ? device_initialize+0x510/0x510
[  534.986928][ T8020]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  534.993905][ T8020]  ? __init_waitqueue_head+0xca/0x150
[  534.999471][ T8020]  netdev_register_kobject+0x183/0x3f0
[  535.005130][ T8020]  register_netdevice+0xbe6/0x14b0
[  535.010362][ T8020]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  535.016795][ T8020]  ? validate_linkmsg+0x6fc/0x9c0
[  535.022194][ T8020]  br_dev_newlink+0x27/0x110
[  535.027321][ T8020]  ? br_changelink+0x1760/0x1760
[  535.032884][ T8020]  __rtnl_newlink+0x1173/0x1930
[  535.038284][ T8020]  ? rtnl_link_unregister+0x260/0x260
[  535.043966][ T8020]  rtnl_newlink+0x67/0xa0
[  535.048302][ T8020]  ? __rtnl_newlink+0x1930/0x1930
[  535.053429][ T8020]  rtnetlink_rcv_msg+0x3c7/0xe00
[  535.058722][ T8020]  ? rtnl_fill_vf+0x4a0/0x4a0
[  535.063493][ T8020]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  535.069483][ T8020]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  535.075751][ T8020]  netlink_rcv_skb+0x16b/0x440
[  535.080612][ T8020]  ? rtnl_fill_vf+0x4a0/0x4a0
[  535.085661][ T8020]  ? netlink_ack+0x1380/0x1380
[  535.090609][ T8020]  ? lock_sync+0x190/0x190
[  535.095138][ T8020]  ? netlink_deliver_tap+0x1a0/0xd00
[  535.100690][ T8020]  ? _copy_from_iter+0x2c1/0x10f0
[  535.105746][ T8020]  netlink_unicast+0x53b/0x810
[  535.110831][ T8020]  ? netlink_attachskb+0x880/0x880
[  535.116434][ T8020]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  535.122965][ T8020]  ? __phys_addr_symbol+0x30/0x70
[  535.128366][ T8020]  ? __check_object_size+0x323/0x730
[  535.134485][ T8020]  netlink_sendmsg+0x93c/0xe40
[  535.139274][ T8020]  ? netlink_unicast+0x810/0x810
[  535.144406][ T8020]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  535.150170][ T8020]  ? netlink_unicast+0x810/0x810
[  535.155392][ T8020]  __sock_sendmsg+0xd5/0x180
[  535.160370][ T8020]  ____sys_sendmsg+0x6ac/0x940
[  535.165324][ T8020]  ? copy_msghdr_from_user+0x10b/0x160
[  535.171169][ T8020]  ? kernel_sendmsg+0x50/0x50
[  535.175956][ T8020]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  535.182218][ T8020]  ___sys_sendmsg+0x135/0x1d0
[  535.186912][ T8020]  ? do_recvmmsg+0x740/0x740
[  535.191511][ T8020]  ? find_held_lock+0x2d/0x110
[  535.196473][ T8020]  ? preempt_count_sub+0x160/0x160
[  535.201690][ T8020]  ? __fget_light+0x1fc/0x260
[  535.207292][ T8020]  __sys_sendmsg+0x117/0x1e0
[  535.212251][ T8020]  ? __sys_sendmsg_sock+0x30/0x30
[  535.217715][ T8020]  ? xfd_validate_state+0x5d/0x180
[  535.222867][ T8020]  ? syscall_enter_from_user_mode+0x7f/0x120
[  535.229402][ T8020]  do_syscall_64+0x40/0x110
[  535.234109][ T8020]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  535.240079][ T8020] RIP: 0033:0x7fb700fd30b9
[  535.244496][ T8020] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  535.264550][ T8020] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  535.273151][ T8020] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  535.281231][ T8020] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  535.289482][ T8020] RBP: 0000000000082541 R08: 0000000000000000 R09: 0000000000000006
[  535.297630][ T8020] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  535.306013][ T8020] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  535.314086][ T8020]  </TASK>
[  535.320180][ T8020] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  535.386624][ T8020] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  535.396222][ T8020] CPU: 1 PID: 8020 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  535.406497][ T8020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  535.416647][ T8020] Call Trace:
[  535.420212][ T8020]  <TASK>
[  535.423138][ T8020]  dump_stack_lvl+0x125/0x1b0
[  535.428183][ T8020]  sysfs_warn_dup+0x7f/0xa0
[  535.432797][ T8020]  sysfs_create_dir_ns+0x249/0x2b0
[  535.438279][ T8020]  ? sysfs_create_mount_point+0xb0/0xb0
[  535.443931][ T8020]  ? spin_bug+0x1d0/0x1d0
[  535.448295][ T8020]  ? net_namespace+0x12/0x40
[  535.452919][ T8020]  ? device_namespace+0x8d/0xc0
[  535.457818][ T8020]  kobject_add_internal+0x2c8/0x970
[  535.463049][ T8020]  kobject_add+0x16f/0x240
[  535.467487][ T8020]  ? kset_create_and_add+0x190/0x190
[  535.472958][ T8020]  ? do_raw_spin_unlock+0x173/0x230
[  535.478426][ T8020]  ? kobject_put+0xbe/0x440
[  535.483547][ T8020]  ? device_add+0xc35/0x1aa0
[  535.488190][ T8020]  device_add+0x289/0x1aa0
[  535.492652][ T8020]  ? device_initialize+0x510/0x510
[  535.500645][ T8020]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  535.507773][ T8020]  ? __init_waitqueue_head+0xca/0x150
[  535.514062][ T8020]  netdev_register_kobject+0x183/0x3f0
[  535.519877][ T8020]  register_netdevice+0xbe6/0x14b0
[  535.525336][ T8020]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  535.531701][ T8020]  ? validate_linkmsg+0x6fc/0x9c0
[  535.536907][ T8020]  br_dev_newlink+0x27/0x110
[  535.541601][ T8020]  ? br_changelink+0x1760/0x1760
[  535.546895][ T8020]  __rtnl_newlink+0x1173/0x1930
[  535.552056][ T8020]  ? rtnl_link_unregister+0x260/0x260
[  535.557757][ T8020]  rtnl_newlink+0x67/0xa0
[  535.562630][ T8020]  ? __rtnl_newlink+0x1930/0x1930
[  535.567786][ T8020]  rtnetlink_rcv_msg+0x3c7/0xe00
[  535.573009][ T8020]  ? rtnl_fill_vf+0x4a0/0x4a0
[  535.577790][ T8020]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  535.584394][ T8020]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  535.590696][ T8020]  netlink_rcv_skb+0x16b/0x440
[  535.595925][ T8020]  ? rtnl_fill_vf+0x4a0/0x4a0
[  535.601244][ T8020]  ? netlink_ack+0x1380/0x1380
[  535.606101][ T8020]  ? lock_sync+0x190/0x190
[  535.610713][ T8020]  ? netlink_deliver_tap+0x1a0/0xd00
[  535.616363][ T8020]  ? _copy_from_iter+0x2c1/0x10f0
[  535.623179][ T8020]  netlink_unicast+0x53b/0x810
[  535.628582][ T8020]  ? netlink_attachskb+0x880/0x880
[  535.633878][ T8020]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  535.639866][ T8020]  ? __phys_addr_symbol+0x30/0x70
[  535.645517][ T8020]  ? __check_object_size+0x323/0x730
[  535.651532][ T8020]  netlink_sendmsg+0x93c/0xe40
[  535.656685][ T8020]  ? netlink_unicast+0x810/0x810
[  535.661903][ T8020]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  535.667200][ T8020]  ? netlink_unicast+0x810/0x810
[  535.672621][ T8020]  __sock_sendmsg+0xd5/0x180
[  535.677418][ T8020]  ____sys_sendmsg+0x6ac/0x940
[  535.682228][ T8020]  ? copy_msghdr_from_user+0x10b/0x160
[  535.687724][ T8020]  ? kernel_sendmsg+0x50/0x50
[  535.692885][ T8020]  ? hlock_class+0x4e/0x130
[  535.697424][ T8020]  ? __lock_acquire+0x14e0/0x3b10
[  535.702761][ T8020]  ___sys_sendmsg+0x135/0x1d0
[  535.707729][ T8020]  ? do_recvmmsg+0x740/0x740
[  535.712426][ T8020]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  535.718458][ T8020]  ? find_held_lock+0x2d/0x110
[  535.723305][ T8020]  ? __fget_light+0x1fc/0x260
[  535.728018][ T8020]  __sys_sendmsg+0x117/0x1e0
[  535.732807][ T8020]  ? __sys_sendmsg_sock+0x30/0x30
[  535.737933][ T8020]  ? xfd_validate_state+0x5d/0x180
[  535.743203][ T8020]  ? syscall_enter_from_user_mode+0x7f/0x120
[  535.749612][ T8020]  do_syscall_64+0x40/0x110
[  535.754135][ T8020]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  535.760326][ T8020] RIP: 0033:0x7fb700fd30b9
[  535.764917][ T8020] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  535.785432][ T8020] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  535.794315][ T8020] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  535.802411][ T8020] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  535.811180][ T8020] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  535.820070][ T8020] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  535.828768][ T8020] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  535.837599][ T8020]  </TASK>
[  535.841502][ T8020] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  535.913001][ T8021] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  535.924351][ T8021] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  535.933883][ T8021] CPU: 1 PID: 8021 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  535.944975][ T8021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  535.955557][ T8021] Call Trace:
[  535.958922][ T8021]  <TASK>
[  535.962904][ T8021]  dump_stack_lvl+0x125/0x1b0
[  535.968029][ T8021]  sysfs_warn_dup+0x7f/0xa0
[  535.973003][ T8021]  sysfs_create_dir_ns+0x249/0x2b0
[  535.978670][ T8021]  ? sysfs_create_mount_point+0xb0/0xb0
[  535.984596][ T8021]  ? spin_bug+0x1d0/0x1d0
[  535.989035][ T8021]  ? net_namespace+0x12/0x40
[  535.993719][ T8021]  ? device_namespace+0x8d/0xc0
[  535.998773][ T8021]  kobject_add_internal+0x2c8/0x970
[  536.004089][ T8021]  kobject_add+0x16f/0x240
[  536.008526][ T8021]  ? kset_create_and_add+0x190/0x190
[  536.014461][ T8021]  ? do_raw_spin_unlock+0x173/0x230
[  536.020476][ T8021]  ? kobject_put+0xbe/0x440
[  536.025133][ T8021]  ? device_add+0xc35/0x1aa0
[  536.029768][ T8021]  device_add+0x289/0x1aa0
[  536.034311][ T8021]  ? device_initialize+0x510/0x510
[  536.039696][ T8021]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  536.046772][ T8021]  ? __init_waitqueue_head+0xca/0x150
[  536.052188][ T8021]  netdev_register_kobject+0x183/0x3f0
[  536.057849][ T8021]  register_netdevice+0xbe6/0x14b0
[  536.063155][ T8021]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  536.069355][ T8021]  ? validate_linkmsg+0x6fc/0x9c0
[  536.074656][ T8021]  br_dev_newlink+0x27/0x110
[  536.079787][ T8021]  ? br_changelink+0x1760/0x1760
[  536.084902][ T8021]  __rtnl_newlink+0x1173/0x1930
[  536.089957][ T8021]  ? rtnl_link_unregister+0x260/0x260
[  536.095630][ T8021]  rtnl_newlink+0x67/0xa0
[  536.100236][ T8021]  ? __rtnl_newlink+0x1930/0x1930
[  536.105492][ T8021]  rtnetlink_rcv_msg+0x3c7/0xe00
[  536.110807][ T8021]  ? rtnl_fill_vf+0x4a0/0x4a0
[  536.115781][ T8021]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  536.122011][ T8021]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  536.128921][ T8021]  netlink_rcv_skb+0x16b/0x440
[  536.133932][ T8021]  ? rtnl_fill_vf+0x4a0/0x4a0
[  536.138996][ T8021]  ? netlink_ack+0x1380/0x1380
[  536.143876][ T8021]  ? lock_sync+0x190/0x190
[  536.148419][ T8021]  ? netlink_deliver_tap+0x1a0/0xd00
[  536.153836][ T8021]  ? _copy_from_iter+0x2c1/0x10f0
[  536.158982][ T8021]  netlink_unicast+0x53b/0x810
[  536.163860][ T8021]  ? netlink_attachskb+0x880/0x880
[  536.169163][ T8021]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  536.175139][ T8021]  ? __phys_addr_symbol+0x30/0x70
[  536.180180][ T8021]  ? __check_object_size+0x323/0x730
[  536.185477][ T8021]  netlink_sendmsg+0x93c/0xe40
[  536.190447][ T8021]  ? netlink_unicast+0x810/0x810
[  536.195760][ T8021]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  536.201265][ T8021]  ? netlink_unicast+0x810/0x810
[  536.206914][ T8021]  __sock_sendmsg+0xd5/0x180
[  536.211888][ T8021]  ____sys_sendmsg+0x6ac/0x940
[  536.216950][ T8021]  ? copy_msghdr_from_user+0x10b/0x160
[  536.222669][ T8021]  ? kernel_sendmsg+0x50/0x50
[  536.227704][ T8021]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  536.234194][ T8021]  ___sys_sendmsg+0x135/0x1d0
[  536.238974][ T8021]  ? do_recvmmsg+0x740/0x740
[  536.244975][ T8021]  ? find_held_lock+0x2d/0x110
[  536.249935][ T8021]  ? preempt_count_sub+0x160/0x160
[  536.255152][ T8021]  ? __fget_light+0x1fc/0x260
[  536.260009][ T8021]  __sys_sendmsg+0x117/0x1e0
[  536.264695][ T8021]  ? __sys_sendmsg_sock+0x30/0x30
[  536.269995][ T8021]  ? xfd_validate_state+0x5d/0x180
[  536.275137][ T8021]  ? syscall_enter_from_user_mode+0x7f/0x120
[  536.281405][ T8021]  do_syscall_64+0x40/0x110
[  536.286177][ T8021]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  536.292256][ T8021] RIP: 0033:0x7fb700fd30b9
[  536.296676][ T8021] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  536.316738][ T8021] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  536.325511][ T8021] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  536.333922][ T8021] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  536.342074][ T8021] RBP: 0000000000082920 R08: 0000000000000000 R09: 0000000000000006
[  536.350315][ T8021] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  536.358374][ T8021] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  536.368155][ T8021]  </TASK>
[  536.373802][ T8021] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  536.426218][ T8021] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  536.436027][ T8021] CPU: 0 PID: 8021 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  536.446197][ T8021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  536.456406][ T8021] Call Trace:
[  536.459691][ T8021]  <TASK>
[  536.462618][ T8021]  dump_stack_lvl+0x125/0x1b0
[  536.468377][ T8021]  sysfs_warn_dup+0x7f/0xa0
[  536.473065][ T8021]  sysfs_create_dir_ns+0x249/0x2b0
[  536.478308][ T8021]  ? sysfs_create_mount_point+0xb0/0xb0
[  536.484113][ T8021]  ? spin_bug+0x1d0/0x1d0
[  536.488703][ T8021]  ? net_namespace+0x12/0x40
[  536.493347][ T8021]  ? device_namespace+0x8d/0xc0
[  536.498411][ T8021]  kobject_add_internal+0x2c8/0x970
[  536.503921][ T8021]  kobject_add+0x16f/0x240
[  536.508896][ T8021]  ? kset_create_and_add+0x190/0x190
[  536.514798][ T8021]  ? do_raw_spin_unlock+0x173/0x230
[  536.520392][ T8021]  ? kobject_put+0xbe/0x440
[  536.525002][ T8021]  ? device_add+0xc35/0x1aa0
[  536.529700][ T8021]  device_add+0x289/0x1aa0
[  536.534137][ T8021]  ? device_initialize+0x510/0x510
[  536.539265][ T8021]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  536.546492][ T8021]  ? __init_waitqueue_head+0xca/0x150
[  536.552502][ T8021]  netdev_register_kobject+0x183/0x3f0
[  536.558155][ T8021]  register_netdevice+0xbe6/0x14b0
[  536.563455][ T8021]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  536.569701][ T8021]  ? validate_linkmsg+0x6fc/0x9c0
[  536.574726][ T8021]  br_dev_newlink+0x27/0x110
[  536.579396][ T8021]  ? br_changelink+0x1760/0x1760
[  536.584449][ T8021]  __rtnl_newlink+0x1173/0x1930
[  536.589484][ T8021]  ? rtnl_link_unregister+0x260/0x260
[  536.594877][ T8021]  rtnl_newlink+0x67/0xa0
[  536.599221][ T8021]  ? __rtnl_newlink+0x1930/0x1930
[  536.604258][ T8021]  rtnetlink_rcv_msg+0x3c7/0xe00
[  536.609283][ T8021]  ? rtnl_fill_vf+0x4a0/0x4a0
[  536.614523][ T8021]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  536.620949][ T8021]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  536.627378][ T8021]  netlink_rcv_skb+0x16b/0x440
[  536.632237][ T8021]  ? rtnl_fill_vf+0x4a0/0x4a0
[  536.637001][ T8021]  ? netlink_ack+0x1380/0x1380
[  536.641829][ T8021]  ? lock_sync+0x190/0x190
[  536.646292][ T8021]  ? netlink_deliver_tap+0x1a0/0xd00
[  536.651592][ T8021]  ? _copy_from_iter+0x2c1/0x10f0
[  536.657253][ T8021]  netlink_unicast+0x53b/0x810
[  536.662052][ T8021]  ? netlink_attachskb+0x880/0x880
[  536.667380][ T8021]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  536.673285][ T8021]  ? __phys_addr_symbol+0x30/0x70
[  536.678681][ T8021]  ? __check_object_size+0x323/0x730
[  536.684160][ T8021]  netlink_sendmsg+0x93c/0xe40
[  536.688947][ T8021]  ? netlink_unicast+0x810/0x810
[  536.694247][ T8021]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  536.700226][ T8021]  ? netlink_unicast+0x810/0x810
[  536.705368][ T8021]  __sock_sendmsg+0xd5/0x180
[  536.710027][ T8021]  ____sys_sendmsg+0x6ac/0x940
[  536.715278][ T8021]  ? copy_msghdr_from_user+0x10b/0x160
[  536.722193][ T8021]  ? kernel_sendmsg+0x50/0x50
[  536.727214][ T8021]  ? hlock_class+0x4e/0x130
[  536.732289][ T8021]  ? __lock_acquire+0x14e0/0x3b10
[  536.737679][ T8021]  ___sys_sendmsg+0x135/0x1d0
[  536.742841][ T8021]  ? do_recvmmsg+0x740/0x740
[  536.747692][ T8021]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  536.753956][ T8021]  ? find_held_lock+0x2d/0x110
[  536.759207][ T8021]  ? __fget_light+0x1fc/0x260
[  536.764257][ T8021]  __sys_sendmsg+0x117/0x1e0
[  536.768973][ T8021]  ? __sys_sendmsg_sock+0x30/0x30
[  536.774095][ T8021]  ? xfd_validate_state+0x5d/0x180
[  536.779233][ T8021]  ? syscall_enter_from_user_mode+0x7f/0x120
[  536.785384][ T8021]  do_syscall_64+0x40/0x110
[  536.790139][ T8021]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  536.796679][ T8021] RIP: 0033:0x7fb700fd30b9
[  536.801925][ T8021] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  536.822259][ T8021] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  536.831300][ T8021] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  536.840125][ T8021] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  536.848743][ T8021] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  536.857168][ T8021] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  536.865631][ T8021] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  536.873812][ T8021]  </TASK>
[  536.878615][ T8021] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  536.950915][ T8022] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  536.961938][ T8022] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  536.971232][ T8022] CPU: 1 PID: 8022 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  536.981585][ T8022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  536.992079][ T8022] Call Trace:
[  536.995448][ T8022]  <TASK>
[  536.998378][ T8022]  dump_stack_lvl+0x125/0x1b0
[  537.003420][ T8022]  sysfs_warn_dup+0x7f/0xa0
[  537.007937][ T8022]  sysfs_create_dir_ns+0x249/0x2b0
[  537.013150][ T8022]  ? sysfs_create_mount_point+0xb0/0xb0
[  537.018876][ T8022]  ? spin_bug+0x1d0/0x1d0
[  537.023325][ T8022]  ? net_namespace+0x12/0x40
[  537.027999][ T8022]  ? device_namespace+0x8d/0xc0
[  537.033039][ T8022]  kobject_add_internal+0x2c8/0x970
[  537.038480][ T8022]  kobject_add+0x16f/0x240
[  537.043063][ T8022]  ? kset_create_and_add+0x190/0x190
[  537.048895][ T8022]  ? do_raw_spin_unlock+0x173/0x230
[  537.054550][ T8022]  ? kobject_put+0xbe/0x440
[  537.059056][ T8022]  ? device_add+0xc35/0x1aa0
[  537.063649][ T8022]  device_add+0x289/0x1aa0
[  537.068085][ T8022]  ? device_initialize+0x510/0x510
[  537.073194][ T8022]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  537.080058][ T8022]  ? __init_waitqueue_head+0xca/0x150
[  537.085539][ T8022]  netdev_register_kobject+0x183/0x3f0
[  537.091186][ T8022]  register_netdevice+0xbe6/0x14b0
[  537.096494][ T8022]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  537.102595][ T8022]  ? validate_linkmsg+0x6fc/0x9c0
[  537.108149][ T8022]  br_dev_newlink+0x27/0x110
[  537.113098][ T8022]  ? br_changelink+0x1760/0x1760
[  537.118494][ T8022]  __rtnl_newlink+0x1173/0x1930
[  537.123742][ T8022]  ? rtnl_link_unregister+0x260/0x260
[  537.129245][ T8022]  rtnl_newlink+0x67/0xa0
[  537.134032][ T8022]  ? __rtnl_newlink+0x1930/0x1930
[  537.139583][ T8022]  rtnetlink_rcv_msg+0x3c7/0xe00
[  537.144756][ T8022]  ? rtnl_fill_vf+0x4a0/0x4a0
[  537.149696][ T8022]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  537.155900][ T8022]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  537.162293][ T8022]  netlink_rcv_skb+0x16b/0x440
[  537.167292][ T8022]  ? rtnl_fill_vf+0x4a0/0x4a0
[  537.172342][ T8022]  ? netlink_ack+0x1380/0x1380
[  537.177395][ T8022]  ? lock_sync+0x190/0x190
[  537.182021][ T8022]  ? netlink_deliver_tap+0x1a0/0xd00
[  537.187581][ T8022]  ? _copy_from_iter+0x2c1/0x10f0
[  537.192626][ T8022]  netlink_unicast+0x53b/0x810
[  537.197839][ T8022]  ? netlink_attachskb+0x880/0x880
[  537.203027][ T8022]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  537.209283][ T8022]  ? __phys_addr_symbol+0x30/0x70
[  537.214330][ T8022]  ? __check_object_size+0x323/0x730
[  537.219986][ T8022]  netlink_sendmsg+0x93c/0xe40
[  537.224965][ T8022]  ? netlink_unicast+0x810/0x810
[  537.230186][ T8022]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  537.235482][ T8022]  ? netlink_unicast+0x810/0x810
[  537.240735][ T8022]  __sock_sendmsg+0xd5/0x180
[  537.245350][ T8022]  ____sys_sendmsg+0x6ac/0x940
[  537.250210][ T8022]  ? copy_msghdr_from_user+0x10b/0x160
[  537.255694][ T8022]  ? kernel_sendmsg+0x50/0x50
[  537.260414][ T8022]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  537.266453][ T8022]  ___sys_sendmsg+0x135/0x1d0
[  537.271168][ T8022]  ? do_recvmmsg+0x740/0x740
[  537.275779][ T8022]  ? find_held_lock+0x2d/0x110
[  537.280576][ T8022]  ? preempt_count_sub+0x160/0x160
[  537.285896][ T8022]  ? __fget_light+0x1fc/0x260
[  537.290598][ T8022]  __sys_sendmsg+0x117/0x1e0
[  537.295683][ T8022]  ? __sys_sendmsg_sock+0x30/0x30
[  537.300911][ T8022]  ? syscall_enter_from_user_mode+0x7f/0x120
[  537.307077][ T8022]  do_syscall_64+0x40/0x110
[  537.311586][ T8022]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  537.317779][ T8022] RIP: 0033:0x7fb700fd30b9
[  537.322398][ T8022] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  537.342720][ T8022] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  537.351338][ T8022] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  537.359541][ T8022] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  537.367524][ T8022] RBP: 0000000000082d3b R08: 0000000000000000 R09: 0000000000000006
[  537.375600][ T8022] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  537.383833][ T8022] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  537.391910][ T8022]  </TASK>
[  537.399329][ T8022] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  537.466056][ T8022] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  537.475640][ T8022] CPU: 0 PID: 8022 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  537.485853][ T8022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  537.496449][ T8022] Call Trace:
[  537.499834][ T8022]  <TASK>
[  537.503038][ T8022]  dump_stack_lvl+0x125/0x1b0
[  537.508189][ T8022]  sysfs_warn_dup+0x7f/0xa0
[  537.512705][ T8022]  sysfs_create_dir_ns+0x249/0x2b0
[  537.518527][ T8022]  ? sysfs_create_mount_point+0xb0/0xb0
[  537.524289][ T8022]  ? spin_bug+0x1d0/0x1d0
[  537.528721][ T8022]  ? net_namespace+0x12/0x40
[  537.533419][ T8022]  ? device_namespace+0x8d/0xc0
[  537.538286][ T8022]  kobject_add_internal+0x2c8/0x970
[  537.543735][ T8022]  kobject_add+0x16f/0x240
[  537.548158][ T8022]  ? kset_create_and_add+0x190/0x190
[  537.553666][ T8022]  ? do_raw_spin_unlock+0x173/0x230
[  537.558870][ T8022]  ? kobject_put+0xbe/0x440
[  537.563376][ T8022]  ? device_add+0xc35/0x1aa0
[  537.567960][ T8022]  device_add+0x289/0x1aa0
[  537.572458][ T8022]  ? device_initialize+0x510/0x510
[  537.577623][ T8022]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  537.584613][ T8022]  ? __init_waitqueue_head+0xca/0x150
[  537.590176][ T8022]  netdev_register_kobject+0x183/0x3f0
[  537.595727][ T8022]  register_netdevice+0xbe6/0x14b0
[  537.600945][ T8022]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  537.606922][ T8022]  ? validate_linkmsg+0x6fc/0x9c0
[  537.612127][ T8022]  br_dev_newlink+0x27/0x110
[  537.616766][ T8022]  ? br_changelink+0x1760/0x1760
[  537.621880][ T8022]  __rtnl_newlink+0x1173/0x1930
[  537.626744][ T8022]  ? rtnl_link_unregister+0x260/0x260
[  537.632306][ T8022]  rtnl_newlink+0x67/0xa0
[  537.636659][ T8022]  ? __rtnl_newlink+0x1930/0x1930
[  537.641899][ T8022]  rtnetlink_rcv_msg+0x3c7/0xe00
[  537.647012][ T8022]  ? rtnl_fill_vf+0x4a0/0x4a0
[  537.651885][ T8022]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  537.658507][ T8022]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  537.664769][ T8022]  netlink_rcv_skb+0x16b/0x440
[  537.670055][ T8022]  ? rtnl_fill_vf+0x4a0/0x4a0
[  537.674916][ T8022]  ? netlink_ack+0x1380/0x1380
[  537.679702][ T8022]  ? lock_sync+0x190/0x190
[  537.684855][ T8022]  ? netlink_deliver_tap+0x1a0/0xd00
[  537.690428][ T8022]  ? _copy_from_iter+0x2c1/0x10f0
[  537.695607][ T8022]  netlink_unicast+0x53b/0x810
[  537.700405][ T8022]  ? netlink_attachskb+0x880/0x880
[  537.705665][ T8022]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  537.711670][ T8022]  ? __phys_addr_symbol+0x30/0x70
[  537.716708][ T8022]  ? __check_object_size+0x323/0x730
[  537.722185][ T8022]  netlink_sendmsg+0x93c/0xe40
[  537.727321][ T8022]  ? netlink_unicast+0x810/0x810
[  537.732268][ T8022]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  537.737727][ T8022]  ? netlink_unicast+0x810/0x810
[  537.742880][ T8022]  __sock_sendmsg+0xd5/0x180
[  537.747605][ T8022]  ____sys_sendmsg+0x6ac/0x940
[  537.752908][ T8022]  ? copy_msghdr_from_user+0x10b/0x160
[  537.758461][ T8022]  ? kernel_sendmsg+0x50/0x50
[  537.763254][ T8022]  ___sys_sendmsg+0x135/0x1d0
[  537.768753][ T8022]  ? do_recvmmsg+0x740/0x740
[  537.773616][ T8022]  ? find_held_lock+0x2d/0x110
[  537.778591][ T8022]  ? preempt_count_sub+0x160/0x160
[  537.784319][ T8022]  ? __fget_light+0x1fc/0x260
[  537.789341][ T8022]  __sys_sendmsg+0x117/0x1e0
[  537.794312][ T8022]  ? __sys_sendmsg_sock+0x30/0x30
[  537.799355][ T8022]  ? syscall_enter_from_user_mode+0x7f/0x120
[  537.805464][ T8022]  do_syscall_64+0x40/0x110
[  537.810622][ T8022]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  537.817738][ T8022] RIP: 0033:0x7fb700fd30b9
[  537.822238][ T8022] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  537.843182][ T8022] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  537.851782][ T8022] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  537.859933][ T8022] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  537.868250][ T8022] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  537.876403][ T8022] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  537.884464][ T8022] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  537.892526][ T8022]  </TASK>
[  537.897991][ T8022] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  537.980925][ T8023] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  537.992280][ T8023] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  538.001714][ T8023] CPU: 1 PID: 8023 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  538.012763][ T8023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  538.023172][ T8023] Call Trace:
[  538.026541][ T8023]  <TASK>
[  538.029478][ T8023]  dump_stack_lvl+0x125/0x1b0
[  538.034160][ T8023]  sysfs_warn_dup+0x7f/0xa0
[  538.038754][ T8023]  sysfs_create_dir_ns+0x249/0x2b0
[  538.043870][ T8023]  ? sysfs_create_mount_point+0xb0/0xb0
[  538.049610][ T8023]  ? spin_bug+0x1d0/0x1d0
[  538.054047][ T8023]  ? net_namespace+0x12/0x40
[  538.058665][ T8023]  ? device_namespace+0x8d/0xc0
[  538.063722][ T8023]  kobject_add_internal+0x2c8/0x970
[  538.068938][ T8023]  kobject_add+0x16f/0x240
[  538.073814][ T8023]  ? kset_create_and_add+0x190/0x190
[  538.079381][ T8023]  ? do_raw_spin_unlock+0x173/0x230
[  538.084580][ T8023]  ? kobject_put+0xbe/0x440
[  538.089181][ T8023]  ? device_add+0xc35/0x1aa0
[  538.094060][ T8023]  device_add+0x289/0x1aa0
[  538.098668][ T8023]  ? device_initialize+0x510/0x510
[  538.104143][ T8023]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  538.111043][ T8023]  ? __init_waitqueue_head+0xca/0x150
[  538.116876][ T8023]  netdev_register_kobject+0x183/0x3f0
[  538.122434][ T8023]  register_netdevice+0xbe6/0x14b0
[  538.127862][ T8023]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  538.134190][ T8023]  ? validate_linkmsg+0x6fc/0x9c0
[  538.139555][ T8023]  br_dev_newlink+0x27/0x110
[  538.144365][ T8023]  ? br_changelink+0x1760/0x1760
[  538.149333][ T8023]  __rtnl_newlink+0x1173/0x1930
[  538.154377][ T8023]  ? rtnl_link_unregister+0x260/0x260
[  538.159888][ T8023]  rtnl_newlink+0x67/0xa0
[  538.164575][ T8023]  ? __rtnl_newlink+0x1930/0x1930
[  538.170034][ T8023]  rtnetlink_rcv_msg+0x3c7/0xe00
[  538.175183][ T8023]  ? rtnl_fill_vf+0x4a0/0x4a0
[  538.179956][ T8023]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  538.186984][ T8023]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  538.193279][ T8023]  netlink_rcv_skb+0x16b/0x440
[  538.198141][ T8023]  ? rtnl_fill_vf+0x4a0/0x4a0
[  538.203127][ T8023]  ? netlink_ack+0x1380/0x1380
[  538.207895][ T8023]  ? lock_sync+0x190/0x190
[  538.212340][ T8023]  ? netlink_deliver_tap+0x1a0/0xd00
[  538.217998][ T8023]  ? _copy_from_iter+0x2c1/0x10f0
[  538.223761][ T8023]  netlink_unicast+0x53b/0x810
[  538.228641][ T8023]  ? netlink_attachskb+0x880/0x880
[  538.233764][ T8023]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  538.239748][ T8023]  ? __phys_addr_symbol+0x30/0x70
[  538.245050][ T8023]  ? __check_object_size+0x323/0x730
[  538.250787][ T8023]  netlink_sendmsg+0x93c/0xe40
[  538.256057][ T8023]  ? netlink_unicast+0x810/0x810
[  538.261727][ T8023]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  538.267314][ T8023]  ? netlink_unicast+0x810/0x810
[  538.272272][ T8023]  __sock_sendmsg+0xd5/0x180
[  538.277047][ T8023]  ____sys_sendmsg+0x6ac/0x940
[  538.281899][ T8023]  ? copy_msghdr_from_user+0x10b/0x160
[  538.287450][ T8023]  ? kernel_sendmsg+0x50/0x50
[  538.292226][ T8023]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  538.298347][ T8023]  ___sys_sendmsg+0x135/0x1d0
[  538.303150][ T8023]  ? do_recvmmsg+0x740/0x740
[  538.308221][ T8023]  ? find_held_lock+0x2d/0x110
[  538.313372][ T8023]  ? preempt_count_sub+0x160/0x160
[  538.318647][ T8023]  ? __fget_light+0x1fc/0x260
[  538.323355][ T8023]  __sys_sendmsg+0x117/0x1e0
[  538.328143][ T8023]  ? __sys_sendmsg_sock+0x30/0x30
[  538.333299][ T8023]  ? syscall_enter_from_user_mode+0x7f/0x120
[  538.339572][ T8023]  do_syscall_64+0x40/0x110
[  538.344084][ T8023]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  538.350088][ T8023] RIP: 0033:0x7fb700fd30b9
[  538.355203][ T8023] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  538.374902][ T8023] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  538.383401][ T8023] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  538.391400][ T8023] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  538.399734][ T8023] RBP: 000000000008314a R08: 0000000000000000 R09: 0000000000000006
[  538.407975][ T8023] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  538.415946][ T8023] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  538.424551][ T8023]  </TASK>
[  538.429397][ T8023] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  538.476032][ T8023] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  538.485639][ T8023] CPU: 0 PID: 8023 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  538.495993][ T8023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  538.507278][ T8023] Call Trace:
[  538.510584][ T8023]  <TASK>
[  538.518419][ T8023]  dump_stack_lvl+0x125/0x1b0
[  538.523308][ T8023]  sysfs_warn_dup+0x7f/0xa0
[  538.528052][ T8023]  sysfs_create_dir_ns+0x249/0x2b0
[  538.533376][ T8023]  ? sysfs_create_mount_point+0xb0/0xb0
[  538.539133][ T8023]  ? spin_bug+0x1d0/0x1d0
[  538.543842][ T8023]  ? net_namespace+0x12/0x40
[  538.548503][ T8023]  ? device_namespace+0x8d/0xc0
[  538.553546][ T8023]  kobject_add_internal+0x2c8/0x970
[  538.559013][ T8023]  kobject_add+0x16f/0x240
[  538.563547][ T8023]  ? kset_create_and_add+0x190/0x190
[  538.568930][ T8023]  ? do_raw_spin_unlock+0x173/0x230
[  538.574138][ T8023]  ? kobject_put+0xbe/0x440
[  538.578705][ T8023]  ? device_add+0xc35/0x1aa0
[  538.583319][ T8023]  device_add+0x289/0x1aa0
[  538.587822][ T8023]  ? device_initialize+0x510/0x510
[  538.592928][ T8023]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  538.599953][ T8023]  ? __init_waitqueue_head+0xca/0x150
[  538.605810][ T8023]  netdev_register_kobject+0x183/0x3f0
[  538.611308][ T8023]  register_netdevice+0xbe6/0x14b0
[  538.616988][ T8023]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  538.623186][ T8023]  ? validate_linkmsg+0x6fc/0x9c0
[  538.628390][ T8023]  br_dev_newlink+0x27/0x110
[  538.633027][ T8023]  ? br_changelink+0x1760/0x1760
[  538.637981][ T8023]  __rtnl_newlink+0x1173/0x1930
[  538.643830][ T8023]  ? rtnl_link_unregister+0x260/0x260
[  538.649439][ T8023]  rtnl_newlink+0x67/0xa0
[  538.653867][ T8023]  ? __rtnl_newlink+0x1930/0x1930
[  538.660163][ T8023]  rtnetlink_rcv_msg+0x3c7/0xe00
[  538.665219][ T8023]  ? rtnl_fill_vf+0x4a0/0x4a0
[  538.670380][ T8023]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  538.676621][ T8023]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  538.682738][ T8023]  netlink_rcv_skb+0x16b/0x440
[  538.687875][ T8023]  ? rtnl_fill_vf+0x4a0/0x4a0
[  538.692764][ T8023]  ? netlink_ack+0x1380/0x1380
[  538.697565][ T8023]  ? lock_sync+0x190/0x190
[  538.701995][ T8023]  ? netlink_deliver_tap+0x1a0/0xd00
[  538.707385][ T8023]  ? _copy_from_iter+0x2c1/0x10f0
[  538.712689][ T8023]  netlink_unicast+0x53b/0x810
[  538.717662][ T8023]  ? netlink_attachskb+0x880/0x880
[  538.722864][ T8023]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  538.729120][ T8023]  ? __phys_addr_symbol+0x30/0x70
[  538.734164][ T8023]  ? __check_object_size+0x323/0x730
[  538.739839][ T8023]  netlink_sendmsg+0x93c/0xe40
[  538.744634][ T8023]  ? netlink_unicast+0x810/0x810
[  538.749585][ T8023]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  538.754971][ T8023]  ? netlink_unicast+0x810/0x810
[  538.760234][ T8023]  __sock_sendmsg+0xd5/0x180
[  538.764907][ T8023]  ____sys_sendmsg+0x6ac/0x940
[  538.770229][ T8023]  ? copy_msghdr_from_user+0x10b/0x160
[  538.775825][ T8023]  ? kernel_sendmsg+0x50/0x50
[  538.780610][ T8023]  ___sys_sendmsg+0x135/0x1d0
[  538.785468][ T8023]  ? do_recvmmsg+0x740/0x740
[  538.790091][ T8023]  ? find_held_lock+0x2d/0x110
[  538.794869][ T8023]  ? preempt_count_sub+0x160/0x160
[  538.800364][ T8023]  ? __fget_light+0x1fc/0x260
[  538.805287][ T8023]  __sys_sendmsg+0x117/0x1e0
[  538.810378][ T8023]  ? __sys_sendmsg_sock+0x30/0x30
[  538.815675][ T8023]  ? syscall_enter_from_user_mode+0x7f/0x120
[  538.821876][ T8023]  do_syscall_64+0x40/0x110
[  538.826559][ T8023]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  538.832684][ T8023] RIP: 0033:0x7fb700fd30b9
[  538.837579][ T8023] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  538.857386][ T8023] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  538.866300][ T8023] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  538.874444][ T8023] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  538.882611][ T8023] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  538.890579][ T8023] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  538.898543][ T8023] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  538.906524][ T8023]  </TASK>
[  538.910190][ T8023] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  538.971849][ T8024] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  538.983800][ T8024] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  538.993536][ T8024] CPU: 0 PID: 8024 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  539.003780][ T8024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  539.014104][ T8024] Call Trace:
[  539.017474][ T8024]  <TASK>
[  539.020400][ T8024]  dump_stack_lvl+0x125/0x1b0
[  539.025082][ T8024]  sysfs_warn_dup+0x7f/0xa0
[  539.029638][ T8024]  sysfs_create_dir_ns+0x249/0x2b0
[  539.034782][ T8024]  ? sysfs_create_mount_point+0xb0/0xb0
[  539.040371][ T8024]  ? spin_bug+0x1d0/0x1d0
[  539.044889][ T8024]  ? net_namespace+0x12/0x40
[  539.049486][ T8024]  ? device_namespace+0x8d/0xc0
[  539.054533][ T8024]  kobject_add_internal+0x2c8/0x970
[  539.059921][ T8024]  kobject_add+0x16f/0x240
[  539.064356][ T8024]  ? kset_create_and_add+0x190/0x190
[  539.070094][ T8024]  ? do_raw_spin_unlock+0x173/0x230
[  539.075388][ T8024]  ? kobject_put+0xbe/0x440
[  539.079910][ T8024]  ? device_add+0xc35/0x1aa0
[  539.084603][ T8024]  device_add+0x289/0x1aa0
[  539.089027][ T8024]  ? device_initialize+0x510/0x510
[  539.094168][ T8024]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  539.101148][ T8024]  ? __init_waitqueue_head+0xca/0x150
[  539.106812][ T8024]  netdev_register_kobject+0x183/0x3f0
[  539.112680][ T8024]  register_netdevice+0xbe6/0x14b0
[  539.117838][ T8024]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  539.124015][ T8024]  ? validate_linkmsg+0x6fc/0x9c0
[  539.129841][ T8024]  br_dev_newlink+0x27/0x110
[  539.134514][ T8024]  ? br_changelink+0x1760/0x1760
[  539.139727][ T8024]  __rtnl_newlink+0x1173/0x1930
[  539.144955][ T8024]  ? rtnl_link_unregister+0x260/0x260
[  539.151563][ T8024]  rtnl_newlink+0x67/0xa0
[  539.156515][ T8024]  ? __rtnl_newlink+0x1930/0x1930
[  539.161906][ T8024]  rtnetlink_rcv_msg+0x3c7/0xe00
[  539.167212][ T8024]  ? rtnl_fill_vf+0x4a0/0x4a0
[  539.172157][ T8024]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  539.178153][ T8024]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  539.184162][ T8024]  netlink_rcv_skb+0x16b/0x440
[  539.189215][ T8024]  ? rtnl_fill_vf+0x4a0/0x4a0
[  539.193911][ T8024]  ? netlink_ack+0x1380/0x1380
[  539.199653][ T8024]  ? lock_sync+0x190/0x190
[  539.204182][ T8024]  ? netlink_deliver_tap+0x1a0/0xd00
[  539.209657][ T8024]  ? _copy_from_iter+0x2c1/0x10f0
[  539.214727][ T8024]  netlink_unicast+0x53b/0x810
[  539.220047][ T8024]  ? netlink_attachskb+0x880/0x880
[  539.225700][ T8024]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  539.231872][ T8024]  ? __phys_addr_symbol+0x30/0x70
[  539.237253][ T8024]  ? __check_object_size+0x323/0x730
[  539.242903][ T8024]  netlink_sendmsg+0x93c/0xe40
[  539.247966][ T8024]  ? netlink_unicast+0x810/0x810
[  539.253123][ T8024]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  539.258968][ T8024]  ? netlink_unicast+0x810/0x810
[  539.264025][ T8024]  __sock_sendmsg+0xd5/0x180
[  539.268716][ T8024]  ____sys_sendmsg+0x6ac/0x940
[  539.273574][ T8024]  ? copy_msghdr_from_user+0x10b/0x160
[  539.279130][ T8024]  ? kernel_sendmsg+0x50/0x50
[  539.283991][ T8024]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  539.289994][ T8024]  ___sys_sendmsg+0x135/0x1d0
[  539.294686][ T8024]  ? do_recvmmsg+0x740/0x740
[  539.299412][ T8024]  ? find_held_lock+0x2d/0x110
[  539.304285][ T8024]  ? preempt_count_sub+0x160/0x160
[  539.309747][ T8024]  ? __fget_light+0x1fc/0x260
[  539.314661][ T8024]  __sys_sendmsg+0x117/0x1e0
[  539.319272][ T8024]  ? __sys_sendmsg_sock+0x30/0x30
[  539.324743][ T8024]  ? xfd_validate_state+0x5d/0x180
[  539.330432][ T8024]  ? syscall_enter_from_user_mode+0x7f/0x120
[  539.336559][ T8024]  do_syscall_64+0x40/0x110
[  539.341279][ T8024]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  539.347455][ T8024] RIP: 0033:0x7fb700fd30b9
[  539.353107][ T8024] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  539.374315][ T8024] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  539.382965][ T8024] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  539.391240][ T8024] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  539.399857][ T8024] RBP: 0000000000083550 R08: 0000000000000000 R09: 0000000000000006
[  539.408381][ T8024] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  539.416711][ T8024] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  539.424790][ T8024]  </TASK>
[  539.429840][ T8024] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  539.486370][ T8024] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  539.496760][ T8024] CPU: 1 PID: 8024 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  539.507895][ T8024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  539.518925][ T8024] Call Trace:
[  539.522892][ T8024]  <TASK>
[  539.526040][ T8024]  dump_stack_lvl+0x125/0x1b0
[  539.530850][ T8024]  sysfs_warn_dup+0x7f/0xa0
[  539.535546][ T8024]  sysfs_create_dir_ns+0x249/0x2b0
[  539.540955][ T8024]  ? sysfs_create_mount_point+0xb0/0xb0
[  539.546837][ T8024]  ? spin_bug+0x1d0/0x1d0
[  539.551848][ T8024]  ? net_namespace+0x12/0x40
[  539.556725][ T8024]  ? device_namespace+0x8d/0xc0
[  539.561963][ T8024]  kobject_add_internal+0x2c8/0x970
[  539.568313][ T8024]  kobject_add+0x16f/0x240
[  539.572951][ T8024]  ? kset_create_and_add+0x190/0x190
[  539.578359][ T8024]  ? do_raw_spin_unlock+0x173/0x230
[  539.583834][ T8024]  ? kobject_put+0xbe/0x440
[  539.588532][ T8024]  ? device_add+0xc35/0x1aa0
[  539.593439][ T8024]  device_add+0x289/0x1aa0
[  539.597891][ T8024]  ? device_initialize+0x510/0x510
[  539.603566][ T8024]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  539.610876][ T8024]  ? __init_waitqueue_head+0xca/0x150
[  539.616448][ T8024]  netdev_register_kobject+0x183/0x3f0
[  539.622493][ T8024]  register_netdevice+0xbe6/0x14b0
[  539.627930][ T8024]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  539.634122][ T8024]  ? validate_linkmsg+0x6fc/0x9c0
[  539.639266][ T8024]  br_dev_newlink+0x27/0x110
[  539.644089][ T8024]  ? br_changelink+0x1760/0x1760
[  539.649047][ T8024]  __rtnl_newlink+0x1173/0x1930
[  539.653918][ T8024]  ? rtnl_link_unregister+0x260/0x260
[  539.659933][ T8024]  rtnl_newlink+0x67/0xa0
[  539.664449][ T8024]  ? __rtnl_newlink+0x1930/0x1930
[  539.669612][ T8024]  rtnetlink_rcv_msg+0x3c7/0xe00
[  539.674761][ T8024]  ? rtnl_fill_vf+0x4a0/0x4a0
[  539.679476][ T8024]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  539.685650][ T8024]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  539.692038][ T8024]  netlink_rcv_skb+0x16b/0x440
[  539.696828][ T8024]  ? rtnl_fill_vf+0x4a0/0x4a0
[  539.701603][ T8024]  ? netlink_ack+0x1380/0x1380
[  539.706389][ T8024]  ? lock_sync+0x190/0x190
[  539.711127][ T8024]  ? netlink_deliver_tap+0x1a0/0xd00
[  539.716629][ T8024]  ? _copy_from_iter+0x2c1/0x10f0
[  539.721870][ T8024]  netlink_unicast+0x53b/0x810
[  539.726746][ T8024]  ? netlink_attachskb+0x880/0x880
[  539.732053][ T8024]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  539.738264][ T8024]  ? __phys_addr_symbol+0x30/0x70
[  539.743375][ T8024]  ? __check_object_size+0x323/0x730
[  539.748771][ T8024]  netlink_sendmsg+0x93c/0xe40
[  539.753592][ T8024]  ? netlink_unicast+0x810/0x810
[  539.758778][ T8024]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  539.764540][ T8024]  ? netlink_unicast+0x810/0x810
[  539.769766][ T8024]  __sock_sendmsg+0xd5/0x180
[  539.774598][ T8024]  ____sys_sendmsg+0x6ac/0x940
[  539.779575][ T8024]  ? copy_msghdr_from_user+0x10b/0x160
[  539.785318][ T8024]  ? kernel_sendmsg+0x50/0x50
[  539.790127][ T8024]  ? hlock_class+0x4e/0x130
[  539.794736][ T8024]  ? __lock_acquire+0x14e0/0x3b10
[  539.799984][ T8024]  ___sys_sendmsg+0x135/0x1d0
[  539.804963][ T8024]  ? do_recvmmsg+0x740/0x740
[  539.809777][ T8024]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  539.816872][ T8024]  ? find_held_lock+0x2d/0x110
[  539.822205][ T8024]  ? __fget_light+0x1fc/0x260
[  539.828594][ T8024]  __sys_sendmsg+0x117/0x1e0
[  539.833538][ T8024]  ? __sys_sendmsg_sock+0x30/0x30
[  539.838833][ T8024]  ? __do_sys_rseq+0x750/0x750
[  539.843896][ T8024]  ? syscall_enter_from_user_mode+0x7f/0x120
[  539.850883][ T8024]  do_syscall_64+0x40/0x110
[  539.855624][ T8024]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  539.861989][ T8024] RIP: 0033:0x7fb700fd30b9
[  539.867232][ T8024] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  539.888048][ T8024] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  539.896748][ T8024] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  539.906557][ T8024] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  539.915433][ T8024] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  539.923869][ T8024] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  539.932905][ T8024] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  539.942637][ T8024]  </TASK>
[  539.948724][ T8024] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  540.022041][ T8025] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  540.032814][ T8025] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  540.042512][ T8025] CPU: 0 PID: 8025 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  540.052772][ T8025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  540.063197][ T8025] Call Trace:
[  540.066477][ T8025]  <TASK>
[  540.069473][ T8025]  dump_stack_lvl+0x125/0x1b0
[  540.074254][ T8025]  sysfs_warn_dup+0x7f/0xa0
[  540.079172][ T8025]  sysfs_create_dir_ns+0x249/0x2b0
[  540.084282][ T8025]  ? sysfs_create_mount_point+0xb0/0xb0
[  540.090012][ T8025]  ? spin_bug+0x1d0/0x1d0
[  540.094530][ T8025]  ? net_namespace+0x12/0x40
[  540.099128][ T8025]  ? device_namespace+0x8d/0xc0
[  540.104510][ T8025]  kobject_add_internal+0x2c8/0x970
[  540.109800][ T8025]  kobject_add+0x16f/0x240
[  540.114581][ T8025]  ? kset_create_and_add+0x190/0x190
[  540.119960][ T8025]  ? do_raw_spin_unlock+0x173/0x230
[  540.125607][ T8025]  ? kobject_put+0xbe/0x440
[  540.130291][ T8025]  ? device_add+0xc35/0x1aa0
[  540.134984][ T8025]  device_add+0x289/0x1aa0
[  540.139767][ T8025]  ? device_initialize+0x510/0x510
[  540.145153][ T8025]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  540.152041][ T8025]  ? __init_waitqueue_head+0xca/0x150
[  540.157609][ T8025]  netdev_register_kobject+0x183/0x3f0
[  540.163192][ T8025]  register_netdevice+0xbe6/0x14b0
[  540.168698][ T8025]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  540.174860][ T8025]  ? validate_linkmsg+0x6fc/0x9c0
[  540.180089][ T8025]  br_dev_newlink+0x27/0x110
[  540.184678][ T8025]  ? br_changelink+0x1760/0x1760
[  540.189694][ T8025]  __rtnl_newlink+0x1173/0x1930
[  540.194842][ T8025]  ? rtnl_link_unregister+0x260/0x260
[  540.200396][ T8025]  rtnl_newlink+0x67/0xa0
[  540.204812][ T8025]  ? __rtnl_newlink+0x1930/0x1930
[  540.210380][ T8025]  rtnetlink_rcv_msg+0x3c7/0xe00
[  540.215524][ T8025]  ? rtnl_fill_vf+0x4a0/0x4a0
[  540.220720][ T8025]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  540.227382][ T8025]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  540.233565][ T8025]  netlink_rcv_skb+0x16b/0x440
[  540.238771][ T8025]  ? rtnl_fill_vf+0x4a0/0x4a0
[  540.243467][ T8025]  ? netlink_ack+0x1380/0x1380
[  540.248573][ T8025]  ? lock_sync+0x190/0x190
[  540.253339][ T8025]  ? netlink_deliver_tap+0x1a0/0xd00
[  540.258710][ T8025]  ? _copy_from_iter+0x2c1/0x10f0
[  540.263869][ T8025]  netlink_unicast+0x53b/0x810
[  540.268897][ T8025]  ? netlink_attachskb+0x880/0x880
[  540.274200][ T8025]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  540.280373][ T8025]  ? __phys_addr_symbol+0x30/0x70
[  540.285575][ T8025]  ? __check_object_size+0x323/0x730
[  540.290871][ T8025]  netlink_sendmsg+0x93c/0xe40
[  540.295908][ T8025]  ? netlink_unicast+0x810/0x810
[  540.300851][ T8025]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  540.306479][ T8025]  ? netlink_unicast+0x810/0x810
[  540.311587][ T8025]  __sock_sendmsg+0xd5/0x180
[  540.316483][ T8025]  ____sys_sendmsg+0x6ac/0x940
[  540.321614][ T8025]  ? copy_msghdr_from_user+0x10b/0x160
[  540.327187][ T8025]  ? kernel_sendmsg+0x50/0x50
[  540.331964][ T8025]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  540.337993][ T8025]  ___sys_sendmsg+0x135/0x1d0
[  540.343387][ T8025]  ? do_recvmmsg+0x740/0x740
[  540.348065][ T8025]  ? find_held_lock+0x2d/0x110
[  540.352924][ T8025]  ? preempt_count_sub+0x160/0x160
[  540.358046][ T8025]  ? __fget_light+0x1fc/0x260
[  540.362729][ T8025]  __sys_sendmsg+0x117/0x1e0
[  540.367416][ T8025]  ? __sys_sendmsg_sock+0x30/0x30
[  540.372958][ T8025]  ? xfd_validate_state+0x5d/0x180
[  540.378174][ T8025]  ? syscall_enter_from_user_mode+0x7f/0x120
[  540.384258][ T8025]  do_syscall_64+0x40/0x110
[  540.388895][ T8025]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  540.395094][ T8025] RIP: 0033:0x7fb700fd30b9
[  540.399783][ T8025] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  540.420564][ T8025] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  540.429321][ T8025] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  540.437399][ T8025] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  540.445555][ T8025] RBP: 000000000008392e R08: 0000000000000000 R09: 0000000000000006
[  540.454758][ T8025] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  540.463276][ T8025] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  540.471555][ T8025]  </TASK>
[  540.476080][ T8025] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  540.537505][ T8025] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  540.546876][ T8025] CPU: 0 PID: 8025 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  540.558805][ T8025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  540.569676][ T8025] Call Trace:
[  540.572953][ T8025]  <TASK>
[  540.575982][ T8025]  dump_stack_lvl+0x125/0x1b0
[  540.581153][ T8025]  sysfs_warn_dup+0x7f/0xa0
[  540.585752][ T8025]  sysfs_create_dir_ns+0x249/0x2b0
[  540.590881][ T8025]  ? sysfs_create_mount_point+0xb0/0xb0
[  540.596791][ T8025]  ? spin_bug+0x1d0/0x1d0
[  540.601226][ T8025]  ? net_namespace+0x12/0x40
[  540.606093][ T8025]  ? device_namespace+0x8d/0xc0
[  540.611043][ T8025]  kobject_add_internal+0x2c8/0x970
[  540.616428][ T8025]  kobject_add+0x16f/0x240
[  540.621328][ T8025]  ? kset_create_and_add+0x190/0x190
[  540.626830][ T8025]  ? do_raw_spin_unlock+0x173/0x230
[  540.633005][ T8025]  ? kobject_put+0xbe/0x440
[  540.637982][ T8025]  ? device_add+0xc35/0x1aa0
[  540.642673][ T8025]  device_add+0x289/0x1aa0
[  540.647202][ T8025]  ? device_initialize+0x510/0x510
[  540.652411][ T8025]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  540.659322][ T8025]  ? __init_waitqueue_head+0xca/0x150
[  540.664714][ T8025]  netdev_register_kobject+0x183/0x3f0
[  540.670274][ T8025]  register_netdevice+0xbe6/0x14b0
[  540.675487][ T8025]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  540.681586][ T8025]  ? validate_linkmsg+0x6fc/0x9c0
[  540.686628][ T8025]  br_dev_newlink+0x27/0x110
[  540.691232][ T8025]  ? br_changelink+0x1760/0x1760
[  540.696202][ T8025]  __rtnl_newlink+0x1173/0x1930
[  540.701065][ T8025]  ? rtnl_link_unregister+0x260/0x260
[  540.706473][ T8025]  rtnl_newlink+0x67/0xa0
[  540.710900][ T8025]  ? __rtnl_newlink+0x1930/0x1930
[  540.716453][ T8025]  rtnetlink_rcv_msg+0x3c7/0xe00
[  540.721500][ T8025]  ? rtnl_fill_vf+0x4a0/0x4a0
[  540.726465][ T8025]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  540.732729][ T8025]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  540.739282][ T8025]  netlink_rcv_skb+0x16b/0x440
[  540.744065][ T8025]  ? rtnl_fill_vf+0x4a0/0x4a0
[  540.749136][ T8025]  ? netlink_ack+0x1380/0x1380
[  540.754541][ T8025]  ? lock_sync+0x190/0x190
[  540.759169][ T8025]  ? netlink_deliver_tap+0x1a0/0xd00
[  540.764911][ T8025]  ? _copy_from_iter+0x2c1/0x10f0
[  540.770764][ T8025]  netlink_unicast+0x53b/0x810
[  540.775720][ T8025]  ? netlink_attachskb+0x880/0x880
[  540.781285][ T8025]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  540.787377][ T8025]  ? __phys_addr_symbol+0x30/0x70
[  540.792698][ T8025]  ? __check_object_size+0x323/0x730
[  540.798132][ T8025]  netlink_sendmsg+0x93c/0xe40
[  540.803306][ T8025]  ? netlink_unicast+0x810/0x810
[  540.808617][ T8025]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  540.814346][ T8025]  ? netlink_unicast+0x810/0x810
[  540.819399][ T8025]  __sock_sendmsg+0xd5/0x180
[  540.824014][ T8025]  ____sys_sendmsg+0x6ac/0x940
[  540.828995][ T8025]  ? copy_msghdr_from_user+0x10b/0x160
[  540.834718][ T8025]  ? kernel_sendmsg+0x50/0x50
[  540.840027][ T8025]  ? hlock_class+0x4e/0x130
[  540.844813][ T8025]  ? __lock_acquire+0x14e0/0x3b10
[  540.849954][ T8025]  ___sys_sendmsg+0x135/0x1d0
[  540.854846][ T8025]  ? do_recvmmsg+0x740/0x740
[  540.859631][ T8025]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  540.865895][ T8025]  ? find_held_lock+0x2d/0x110
[  540.870711][ T8025]  ? __fget_light+0x1fc/0x260
[  540.876149][ T8025]  __sys_sendmsg+0x117/0x1e0
[  540.881018][ T8025]  ? __sys_sendmsg_sock+0x30/0x30
[  540.886144][ T8025]  ? xfd_validate_state+0x5d/0x180
[  540.891275][ T8025]  ? syscall_enter_from_user_mode+0x7f/0x120
[  540.897286][ T8025]  do_syscall_64+0x40/0x110
[  540.901893][ T8025]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  540.907887][ T8025] RIP: 0033:0x7fb700fd30b9
[  540.912568][ T8025] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  540.933251][ T8025] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  540.941850][ T8025] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  540.950614][ T8025] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  540.959303][ T8025] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  540.967717][ T8025] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  540.975791][ T8025] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  540.983774][ T8025]  </TASK>
[  540.987388][ T8025] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  541.049526][ T8026] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  541.060099][ T8026] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  541.069555][ T8026] CPU: 0 PID: 8026 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  541.079987][ T8026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  541.090159][ T8026] Call Trace:
[  541.093493][ T8026]  <TASK>
[  541.096567][ T8026]  dump_stack_lvl+0x125/0x1b0
[  541.101472][ T8026]  sysfs_warn_dup+0x7f/0xa0
[  541.106438][ T8026]  sysfs_create_dir_ns+0x249/0x2b0
[  541.111677][ T8026]  ? sysfs_create_mount_point+0xb0/0xb0
[  541.117721][ T8026]  ? spin_bug+0x1d0/0x1d0
[  541.122335][ T8026]  ? net_namespace+0x12/0x40
[  541.127191][ T8026]  ? device_namespace+0x8d/0xc0
[  541.132316][ T8026]  kobject_add_internal+0x2c8/0x970
[  541.137987][ T8026]  kobject_add+0x16f/0x240
[  541.142594][ T8026]  ? kset_create_and_add+0x190/0x190
[  541.148160][ T8026]  ? do_raw_spin_unlock+0x173/0x230
[  541.153476][ T8026]  ? kobject_put+0xbe/0x440
[  541.158253][ T8026]  ? device_add+0xc35/0x1aa0
[  541.163331][ T8026]  device_add+0x289/0x1aa0
[  541.167770][ T8026]  ? device_initialize+0x510/0x510
[  541.173168][ T8026]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  541.180022][ T8026]  ? __init_waitqueue_head+0xca/0x150
[  541.185488][ T8026]  netdev_register_kobject+0x183/0x3f0
[  541.191577][ T8026]  register_netdevice+0xbe6/0x14b0
[  541.196987][ T8026]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  541.203987][ T8026]  ? validate_linkmsg+0x6fc/0x9c0
[  541.209154][ T8026]  br_dev_newlink+0x27/0x110
[  541.213777][ T8026]  ? br_changelink+0x1760/0x1760
[  541.219114][ T8026]  __rtnl_newlink+0x1173/0x1930
[  541.224194][ T8026]  ? rtnl_link_unregister+0x260/0x260
[  541.229671][ T8026]  rtnl_newlink+0x67/0xa0
[  541.234017][ T8026]  ? __rtnl_newlink+0x1930/0x1930
[  541.240123][ T8026]  rtnetlink_rcv_msg+0x3c7/0xe00
[  541.245107][ T8026]  ? rtnl_fill_vf+0x4a0/0x4a0
[  541.249956][ T8026]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  541.256148][ T8026]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  541.262166][ T8026]  netlink_rcv_skb+0x16b/0x440
[  541.267070][ T8026]  ? rtnl_fill_vf+0x4a0/0x4a0
[  541.271763][ T8026]  ? netlink_ack+0x1380/0x1380
[  541.276539][ T8026]  ? lock_sync+0x190/0x190
[  541.280977][ T8026]  ? netlink_deliver_tap+0x1a0/0xd00
[  541.286274][ T8026]  ? _copy_from_iter+0x2c1/0x10f0
[  541.291421][ T8026]  netlink_unicast+0x53b/0x810
[  541.296525][ T8026]  ? netlink_attachskb+0x880/0x880
[  541.302033][ T8026]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  541.308035][ T8026]  ? __phys_addr_symbol+0x30/0x70
[  541.313172][ T8026]  ? __check_object_size+0x323/0x730
[  541.318470][ T8026]  netlink_sendmsg+0x93c/0xe40
[  541.323515][ T8026]  ? netlink_unicast+0x810/0x810
[  541.328754][ T8026]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  541.334517][ T8026]  ? netlink_unicast+0x810/0x810
[  541.339837][ T8026]  __sock_sendmsg+0xd5/0x180
[  541.345253][ T8026]  ____sys_sendmsg+0x6ac/0x940
[  541.350468][ T8026]  ? copy_msghdr_from_user+0x10b/0x160
[  541.356116][ T8026]  ? kernel_sendmsg+0x50/0x50
[  541.360908][ T8026]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  541.367010][ T8026]  ___sys_sendmsg+0x135/0x1d0
[  541.371966][ T8026]  ? do_recvmmsg+0x740/0x740
[  541.376584][ T8026]  ? find_held_lock+0x2d/0x110
[  541.381393][ T8026]  ? preempt_count_sub+0x160/0x160
[  541.386779][ T8026]  ? __fget_light+0x1fc/0x260
[  541.392164][ T8026]  __sys_sendmsg+0x117/0x1e0
[  541.396948][ T8026]  ? __sys_sendmsg_sock+0x30/0x30
[  541.402506][ T8026]  ? syscall_enter_from_user_mode+0x7f/0x120
[  541.408519][ T8026]  do_syscall_64+0x40/0x110
[  541.413226][ T8026]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  541.419348][ T8026] RIP: 0033:0x7fb700fd30b9
[  541.424009][ T8026] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  541.443973][ T8026] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  541.452480][ T8026] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  541.460544][ T8026] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  541.468615][ T8026] RBP: 0000000000083d49 R08: 0000000000000000 R09: 0000000000000006
[  541.477044][ T8026] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  541.485208][ T8026] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  541.493652][ T8026]  </TASK>
[  541.498258][ T8026] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  541.566103][ T8026] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  541.575597][ T8026] CPU: 0 PID: 8026 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  541.586016][ T8026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  541.596517][ T8026] Call Trace:
[  541.599819][ T8026]  <TASK>
[  541.602909][ T8026]  dump_stack_lvl+0x125/0x1b0
[  541.607605][ T8026]  sysfs_warn_dup+0x7f/0xa0
[  541.612224][ T8026]  sysfs_create_dir_ns+0x249/0x2b0
[  541.617532][ T8026]  ? sysfs_create_mount_point+0xb0/0xb0
[  541.623179][ T8026]  ? spin_bug+0x1d0/0x1d0
[  541.627689][ T8026]  ? net_namespace+0x12/0x40
[  541.632481][ T8026]  ? device_namespace+0x8d/0xc0
[  541.637528][ T8026]  kobject_add_internal+0x2c8/0x970
[  541.642824][ T8026]  kobject_add+0x16f/0x240
[  541.647241][ T8026]  ? kset_create_and_add+0x190/0x190
[  541.652612][ T8026]  ? do_raw_spin_unlock+0x173/0x230
[  541.657997][ T8026]  ? kobject_put+0xbe/0x440
[  541.662602][ T8026]  ? device_add+0xc35/0x1aa0
[  541.667295][ T8026]  device_add+0x289/0x1aa0
[  541.671724][ T8026]  ? device_initialize+0x510/0x510
[  541.676843][ T8026]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  541.684746][ T8026]  ? __init_waitqueue_head+0xca/0x150
[  541.690262][ T8026]  netdev_register_kobject+0x183/0x3f0
[  541.696103][ T8026]  register_netdevice+0xbe6/0x14b0
[  541.701277][ T8026]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  541.707530][ T8026]  ? validate_linkmsg+0x6fc/0x9c0
[  541.712655][ T8026]  br_dev_newlink+0x27/0x110
[  541.717647][ T8026]  ? br_changelink+0x1760/0x1760
[  541.722597][ T8026]  __rtnl_newlink+0x1173/0x1930
[  541.727745][ T8026]  ? rtnl_link_unregister+0x260/0x260
[  541.733227][ T8026]  rtnl_newlink+0x67/0xa0
[  541.737819][ T8026]  ? __rtnl_newlink+0x1930/0x1930
[  541.743120][ T8026]  rtnetlink_rcv_msg+0x3c7/0xe00
[  541.748193][ T8026]  ? rtnl_fill_vf+0x4a0/0x4a0
[  541.752964][ T8026]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  541.759143][ T8026]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  541.765958][ T8026]  netlink_rcv_skb+0x16b/0x440
[  541.771624][ T8026]  ? rtnl_fill_vf+0x4a0/0x4a0
[  541.776497][ T8026]  ? netlink_ack+0x1380/0x1380
[  541.781466][ T8026]  ? lock_sync+0x190/0x190
[  541.786263][ T8026]  ? netlink_deliver_tap+0x1a0/0xd00
[  541.791824][ T8026]  ? _copy_from_iter+0x2c1/0x10f0
[  541.796873][ T8026]  netlink_unicast+0x53b/0x810
[  541.801748][ T8026]  ? netlink_attachskb+0x880/0x880
[  541.807075][ T8026]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  541.813296][ T8026]  ? __phys_addr_symbol+0x30/0x70
[  541.818461][ T8026]  ? __check_object_size+0x323/0x730
[  541.823766][ T8026]  netlink_sendmsg+0x93c/0xe40
[  541.829031][ T8026]  ? netlink_unicast+0x810/0x810
[  541.834010][ T8026]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  541.839587][ T8026]  ? netlink_unicast+0x810/0x810
[  541.844858][ T8026]  __sock_sendmsg+0xd5/0x180
[  541.850083][ T8026]  ____sys_sendmsg+0x6ac/0x940
[  541.854888][ T8026]  ? copy_msghdr_from_user+0x10b/0x160
[  541.860462][ T8026]  ? kernel_sendmsg+0x50/0x50
[  541.865264][ T8026]  ? hlock_class+0x4e/0x130
[  541.870134][ T8026]  ? __lock_acquire+0x14e0/0x3b10
[  541.875532][ T8026]  ___sys_sendmsg+0x135/0x1d0
[  541.880280][ T8026]  ? do_recvmmsg+0x740/0x740
[  541.885305][ T8026]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  541.891704][ T8026]  ? find_held_lock+0x2d/0x110
[  541.897734][ T8026]  ? __fget_light+0x1fc/0x260
[  541.902734][ T8026]  __sys_sendmsg+0x117/0x1e0
[  541.907554][ T8026]  ? __sys_sendmsg_sock+0x30/0x30
[  541.912696][ T8026]  ? __do_sys_rseq+0x750/0x750
[  541.917687][ T8026]  ? syscall_enter_from_user_mode+0x7f/0x120
[  541.923768][ T8026]  do_syscall_64+0x40/0x110
[  541.928383][ T8026]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  541.934380][ T8026] RIP: 0033:0x7fb700fd30b9
[  541.938970][ T8026] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  541.959217][ T8026] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  541.967734][ T8026] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  541.975720][ T8026] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  541.983709][ T8026] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  541.991853][ T8026] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  542.000374][ T8026] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  542.008451][ T8026]  </TASK>
[  542.012237][ T8026] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  542.090763][ T8027] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  542.101651][ T8027] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  542.111149][ T8027] CPU: 0 PID: 8027 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  542.121904][ T8027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  542.132671][ T8027] Call Trace:
[  542.135964][ T8027]  <TASK>
[  542.138904][ T8027]  dump_stack_lvl+0x125/0x1b0
[  542.143864][ T8027]  sysfs_warn_dup+0x7f/0xa0
[  542.148650][ T8027]  sysfs_create_dir_ns+0x249/0x2b0
[  542.154740][ T8027]  ? sysfs_create_mount_point+0xb0/0xb0
[  542.160560][ T8027]  ? spin_bug+0x1d0/0x1d0
[  542.165079][ T8027]  ? net_namespace+0x12/0x40
[  542.170026][ T8027]  ? device_namespace+0x8d/0xc0
[  542.174983][ T8027]  kobject_add_internal+0x2c8/0x970
[  542.180297][ T8027]  kobject_add+0x16f/0x240
[  542.185087][ T8027]  ? kset_create_and_add+0x190/0x190
[  542.190385][ T8027]  ? do_raw_spin_unlock+0x173/0x230
[  542.195680][ T8027]  ? kobject_put+0xbe/0x440
[  542.200547][ T8027]  ? device_add+0xc35/0x1aa0
[  542.205229][ T8027]  device_add+0x289/0x1aa0
[  542.210115][ T8027]  ? device_initialize+0x510/0x510
[  542.215810][ T8027]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  542.222898][ T8027]  ? __init_waitqueue_head+0xca/0x150
[  542.228680][ T8027]  netdev_register_kobject+0x183/0x3f0
[  542.234367][ T8027]  register_netdevice+0xbe6/0x14b0
[  542.239543][ T8027]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  542.245978][ T8027]  ? validate_linkmsg+0x6fc/0x9c0
[  542.251976][ T8027]  br_dev_newlink+0x27/0x110
[  542.256576][ T8027]  ? br_changelink+0x1760/0x1760
[  542.261959][ T8027]  __rtnl_newlink+0x1173/0x1930
[  542.266839][ T8027]  ? rtnl_link_unregister+0x260/0x260
[  542.272342][ T8027]  rtnl_newlink+0x67/0xa0
[  542.276681][ T8027]  ? __rtnl_newlink+0x1930/0x1930
[  542.281896][ T8027]  rtnetlink_rcv_msg+0x3c7/0xe00
[  542.287105][ T8027]  ? rtnl_fill_vf+0x4a0/0x4a0
[  542.292228][ T8027]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  542.298342][ T8027]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  542.304442][ T8027]  netlink_rcv_skb+0x16b/0x440
[  542.309339][ T8027]  ? rtnl_fill_vf+0x4a0/0x4a0
[  542.314696][ T8027]  ? netlink_ack+0x1380/0x1380
[  542.319556][ T8027]  ? lock_sync+0x190/0x190
[  542.323997][ T8027]  ? netlink_deliver_tap+0x1a0/0xd00
[  542.329555][ T8027]  ? _copy_from_iter+0x2c1/0x10f0
[  542.335143][ T8027]  netlink_unicast+0x53b/0x810
[  542.339920][ T8027]  ? netlink_attachskb+0x880/0x880
[  542.345223][ T8027]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  542.351298][ T8027]  ? __phys_addr_symbol+0x30/0x70
[  542.356538][ T8027]  ? __check_object_size+0x323/0x730
[  542.362096][ T8027]  netlink_sendmsg+0x93c/0xe40
[  542.367838][ T8027]  ? netlink_unicast+0x810/0x810
[  542.372884][ T8027]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  542.378352][ T8027]  ? netlink_unicast+0x810/0x810
[  542.383389][ T8027]  __sock_sendmsg+0xd5/0x180
[  542.388423][ T8027]  ____sys_sendmsg+0x6ac/0x940
[  542.393283][ T8027]  ? copy_msghdr_from_user+0x10b/0x160
[  542.398759][ T8027]  ? kernel_sendmsg+0x50/0x50
[  542.403458][ T8027]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  542.409629][ T8027]  ___sys_sendmsg+0x135/0x1d0
[  542.414671][ T8027]  ? do_recvmmsg+0x740/0x740
[  542.419363][ T8027]  ? find_held_lock+0x2d/0x110
[  542.424332][ T8027]  ? preempt_count_sub+0x160/0x160
[  542.429475][ T8027]  ? __fget_light+0x1fc/0x260
[  542.434245][ T8027]  __sys_sendmsg+0x117/0x1e0
[  542.439193][ T8027]  ? __sys_sendmsg_sock+0x30/0x30
[  542.444248][ T8027]  ? syscall_enter_from_user_mode+0x7f/0x120
[  542.450253][ T8027]  do_syscall_64+0x40/0x110
[  542.454937][ T8027]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  542.460929][ T8027] RIP: 0033:0x7fb700fd30b9
[  542.465345][ T8027] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  542.485913][ T8027] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  542.494329][ T8027] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  542.502686][ T8027] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  542.511003][ T8027] RBP: 000000000008414c R08: 0000000000000000 R09: 0000000000000006
[  542.519179][ T8027] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  542.527759][ T8027] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  542.536186][ T8027]  </TASK>
[  542.540624][ T8027] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  542.616998][ T8027] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  542.626528][ T8027] CPU: 0 PID: 8027 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  542.636971][ T8027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  542.647030][ T8027] Call Trace:
[  542.650316][ T8027]  <TASK>
[  542.653345][ T8027]  dump_stack_lvl+0x125/0x1b0
[  542.658170][ T8027]  sysfs_warn_dup+0x7f/0xa0
[  542.662801][ T8027]  sysfs_create_dir_ns+0x249/0x2b0
[  542.668198][ T8027]  ? sysfs_create_mount_point+0xb0/0xb0
[  542.674383][ T8027]  ? spin_bug+0x1d0/0x1d0
[  542.678808][ T8027]  ? net_namespace+0x12/0x40
[  542.683576][ T8027]  ? device_namespace+0x8d/0xc0
[  542.688702][ T8027]  kobject_add_internal+0x2c8/0x970
[  542.693947][ T8027]  kobject_add+0x16f/0x240
[  542.698472][ T8027]  ? kset_create_and_add+0x190/0x190
[  542.704190][ T8027]  ? do_raw_spin_unlock+0x173/0x230
[  542.709838][ T8027]  ? kobject_put+0xbe/0x440
[  542.714569][ T8027]  ? device_add+0xc35/0x1aa0
[  542.719483][ T8027]  device_add+0x289/0x1aa0
[  542.724022][ T8027]  ? device_initialize+0x510/0x510
[  542.729352][ T8027]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  542.736233][ T8027]  ? __init_waitqueue_head+0xca/0x150
[  542.742158][ T8027]  netdev_register_kobject+0x183/0x3f0
[  542.747899][ T8027]  register_netdevice+0xbe6/0x14b0
[  542.753117][ T8027]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  542.759280][ T8027]  ? validate_linkmsg+0x6fc/0x9c0
[  542.764402][ T8027]  br_dev_newlink+0x27/0x110
[  542.769940][ T8027]  ? br_changelink+0x1760/0x1760
[  542.775148][ T8027]  __rtnl_newlink+0x1173/0x1930
[  542.780495][ T8027]  ? rtnl_link_unregister+0x260/0x260
[  542.786003][ T8027]  rtnl_newlink+0x67/0xa0
[  542.790355][ T8027]  ? __rtnl_newlink+0x1930/0x1930
[  542.795575][ T8027]  rtnetlink_rcv_msg+0x3c7/0xe00
[  542.801252][ T8027]  ? rtnl_fill_vf+0x4a0/0x4a0
[  542.806129][ T8027]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  542.816123][ T8027]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  542.822487][ T8027]  netlink_rcv_skb+0x16b/0x440
[  542.827452][ T8027]  ? rtnl_fill_vf+0x4a0/0x4a0
[  542.832237][ T8027]  ? netlink_ack+0x1380/0x1380
[  542.837120][ T8027]  ? lock_sync+0x190/0x190
[  542.842087][ T8027]  ? netlink_deliver_tap+0x1a0/0xd00
[  542.847670][ T8027]  ? _copy_from_iter+0x2c1/0x10f0
[  542.852734][ T8027]  netlink_unicast+0x53b/0x810
[  542.857891][ T8027]  ? netlink_attachskb+0x880/0x880
[  542.863140][ T8027]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  542.869162][ T8027]  ? __phys_addr_symbol+0x30/0x70
[  542.874287][ T8027]  ? __check_object_size+0x323/0x730
[  542.880047][ T8027]  netlink_sendmsg+0x93c/0xe40
[  542.884941][ T8027]  ? netlink_unicast+0x810/0x810
[  542.889910][ T8027]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  542.895319][ T8027]  ? netlink_unicast+0x810/0x810
[  542.900356][ T8027]  __sock_sendmsg+0xd5/0x180
[  542.905374][ T8027]  ____sys_sendmsg+0x6ac/0x940
[  542.910614][ T8027]  ? copy_msghdr_from_user+0x10b/0x160
[  542.916273][ T8027]  ? kernel_sendmsg+0x50/0x50
[  542.921573][ T8027]  ? hlock_class+0x4e/0x130
[  542.926372][ T8027]  ? __lock_acquire+0x14e0/0x3b10
[  542.931771][ T8027]  ___sys_sendmsg+0x135/0x1d0
[  542.936639][ T8027]  ? do_recvmmsg+0x740/0x740
[  542.941405][ T8027]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  542.947758][ T8027]  ? find_held_lock+0x2d/0x110
[  542.952556][ T8027]  ? __fget_light+0x1fc/0x260
[  542.957450][ T8027]  __sys_sendmsg+0x117/0x1e0
[  542.962113][ T8027]  ? __sys_sendmsg_sock+0x30/0x30
[  542.967338][ T8027]  ? xfd_validate_state+0x5d/0x180
[  542.972935][ T8027]  ? syscall_enter_from_user_mode+0x7f/0x120
[  542.979415][ T8027]  do_syscall_64+0x40/0x110
[  542.984040][ T8027]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  542.990069][ T8027] RIP: 0033:0x7fb700fd30b9
[  542.994759][ T8027] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  543.015155][ T8027] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  543.023585][ T8027] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  543.032130][ T8027] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  543.040275][ T8027] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  543.048975][ T8027] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  543.057753][ T8027] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  543.066281][ T8027]  </TASK>
[  543.070950][ T8027] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  543.134319][ T8028] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  543.144920][ T8028] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  543.154695][ T8028] CPU: 0 PID: 8028 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  543.164950][ T8028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  543.175377][ T8028] Call Trace:
[  543.178945][ T8028]  <TASK>
[  543.182186][ T8028]  dump_stack_lvl+0x125/0x1b0
[  543.187410][ T8028]  sysfs_warn_dup+0x7f/0xa0
[  543.192130][ T8028]  sysfs_create_dir_ns+0x249/0x2b0
[  543.197350][ T8028]  ? sysfs_create_mount_point+0xb0/0xb0
[  543.203086][ T8028]  ? spin_bug+0x1d0/0x1d0
[  543.207427][ T8028]  ? net_namespace+0x12/0x40
[  543.212318][ T8028]  ? device_namespace+0x8d/0xc0
[  543.217625][ T8028]  kobject_add_internal+0x2c8/0x970
[  543.223532][ T8028]  kobject_add+0x16f/0x240
[  543.228047][ T8028]  ? kset_create_and_add+0x190/0x190
[  543.233431][ T8028]  ? do_raw_spin_unlock+0x173/0x230
[  543.238720][ T8028]  ? kobject_put+0xbe/0x440
[  543.243414][ T8028]  ? device_add+0xc35/0x1aa0
[  543.248376][ T8028]  device_add+0x289/0x1aa0
[  543.253295][ T8028]  ? device_initialize+0x510/0x510
[  543.258595][ T8028]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  543.265503][ T8028]  ? __init_waitqueue_head+0xca/0x150
[  543.271024][ T8028]  netdev_register_kobject+0x183/0x3f0
[  543.276714][ T8028]  register_netdevice+0xbe6/0x14b0
[  543.282054][ T8028]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  543.288088][ T8028]  ? validate_linkmsg+0x6fc/0x9c0
[  543.293223][ T8028]  br_dev_newlink+0x27/0x110
[  543.297922][ T8028]  ? br_changelink+0x1760/0x1760
[  543.302961][ T8028]  __rtnl_newlink+0x1173/0x1930
[  543.307941][ T8028]  ? rtnl_link_unregister+0x260/0x260
[  543.313626][ T8028]  rtnl_newlink+0x67/0xa0
[  543.317963][ T8028]  ? __rtnl_newlink+0x1930/0x1930
[  543.323090][ T8028]  rtnetlink_rcv_msg+0x3c7/0xe00
[  543.328220][ T8028]  ? rtnl_fill_vf+0x4a0/0x4a0
[  543.332993][ T8028]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  543.339140][ T8028]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  543.345324][ T8028]  netlink_rcv_skb+0x16b/0x440
[  543.350186][ T8028]  ? rtnl_fill_vf+0x4a0/0x4a0
[  543.354967][ T8028]  ? netlink_ack+0x1380/0x1380
[  543.359845][ T8028]  ? lock_sync+0x190/0x190
[  543.364470][ T8028]  ? netlink_deliver_tap+0x1a0/0xd00
[  543.369776][ T8028]  ? _copy_from_iter+0x2c1/0x10f0
[  543.374829][ T8028]  netlink_unicast+0x53b/0x810
[  543.379783][ T8028]  ? netlink_attachskb+0x880/0x880
[  543.384914][ T8028]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  543.390951][ T8028]  ? __phys_addr_symbol+0x30/0x70
[  543.395997][ T8028]  ? __check_object_size+0x323/0x730
[  543.401468][ T8028]  netlink_sendmsg+0x93c/0xe40
[  543.406464][ T8028]  ? netlink_unicast+0x810/0x810
[  543.411861][ T8028]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  543.417326][ T8028]  ? netlink_unicast+0x810/0x810
[  543.422283][ T8028]  __sock_sendmsg+0xd5/0x180
[  543.426994][ T8028]  ____sys_sendmsg+0x6ac/0x940
[  543.432044][ T8028]  ? copy_msghdr_from_user+0x10b/0x160
[  543.437953][ T8028]  ? kernel_sendmsg+0x50/0x50
[  543.442825][ T8028]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  543.448916][ T8028]  ___sys_sendmsg+0x135/0x1d0
[  543.453690][ T8028]  ? do_recvmmsg+0x740/0x740
[  543.458291][ T8028]  ? find_held_lock+0x2d/0x110
[  543.463429][ T8028]  ? preempt_count_sub+0x160/0x160
[  543.468736][ T8028]  ? __fget_light+0x1fc/0x260
[  543.473512][ T8028]  __sys_sendmsg+0x117/0x1e0
[  543.478124][ T8028]  ? __sys_sendmsg_sock+0x30/0x30
[  543.484127][ T8028]  ? syscall_enter_from_user_mode+0x7f/0x120
[  543.490214][ T8028]  do_syscall_64+0x40/0x110
[  543.494820][ T8028]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  543.501176][ T8028] RIP: 0033:0x7fb700fd30b9
[  543.505682][ T8028] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  543.525934][ T8028] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  543.534703][ T8028] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  543.543402][ T8028] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  543.551562][ T8028] RBP: 000000000008455d R08: 0000000000000000 R09: 0000000000000006
[  543.560060][ T8028] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  543.568136][ T8028] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  543.576398][ T8028]  </TASK>
[  543.580072][ T8028] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  543.655502][ T8028] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  543.666318][ T8028] CPU: 1 PID: 8028 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  543.676592][ T8028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  543.687101][ T8028] Call Trace:
[  543.690576][ T8028]  <TASK>
[  543.693855][ T8028]  dump_stack_lvl+0x125/0x1b0
[  543.698534][ T8028]  sysfs_warn_dup+0x7f/0xa0
[  543.703626][ T8028]  sysfs_create_dir_ns+0x249/0x2b0
[  543.709105][ T8028]  ? sysfs_create_mount_point+0xb0/0xb0
[  543.714842][ T8028]  ? spin_bug+0x1d0/0x1d0
[  543.719279][ T8028]  ? net_namespace+0x12/0x40
[  543.723993][ T8028]  ? device_namespace+0x8d/0xc0
[  543.728963][ T8028]  kobject_add_internal+0x2c8/0x970
[  543.734482][ T8028]  kobject_add+0x16f/0x240
[  543.738922][ T8028]  ? kset_create_and_add+0x190/0x190
[  543.744749][ T8028]  ? do_raw_spin_unlock+0x173/0x230
[  543.750595][ T8028]  ? kobject_put+0xbe/0x440
[  543.755655][ T8028]  ? device_add+0xc35/0x1aa0
[  543.760458][ T8028]  device_add+0x289/0x1aa0
[  543.764874][ T8028]  ? device_initialize+0x510/0x510
[  543.769977][ T8028]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  543.776827][ T8028]  ? __init_waitqueue_head+0xca/0x150
[  543.782199][ T8028]  netdev_register_kobject+0x183/0x3f0
[  543.787688][ T8028]  register_netdevice+0xbe6/0x14b0
[  543.792891][ T8028]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  543.799042][ T8028]  ? validate_linkmsg+0x6fc/0x9c0
[  543.804326][ T8028]  br_dev_newlink+0x27/0x110
[  543.809625][ T8028]  ? br_changelink+0x1760/0x1760
[  543.815467][ T8028]  __rtnl_newlink+0x1173/0x1930
[  543.820444][ T8028]  ? rtnl_link_unregister+0x260/0x260
[  543.826217][ T8028]  rtnl_newlink+0x67/0xa0
[  543.830582][ T8028]  ? __rtnl_newlink+0x1930/0x1930
[  543.835962][ T8028]  rtnetlink_rcv_msg+0x3c7/0xe00
[  543.841802][ T8028]  ? rtnl_fill_vf+0x4a0/0x4a0
[  543.847215][ T8028]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  543.853482][ T8028]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  543.859650][ T8028]  netlink_rcv_skb+0x16b/0x440
[  543.864421][ T8028]  ? rtnl_fill_vf+0x4a0/0x4a0
[  543.869196][ T8028]  ? netlink_ack+0x1380/0x1380
[  543.874237][ T8028]  ? lock_sync+0x190/0x190
[  543.878728][ T8028]  ? netlink_deliver_tap+0x1a0/0xd00
[  543.884353][ T8028]  ? _copy_from_iter+0x2c1/0x10f0
[  543.889577][ T8028]  netlink_unicast+0x53b/0x810
[  543.894356][ T8028]  ? netlink_attachskb+0x880/0x880
[  543.899947][ T8028]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  543.905974][ T8028]  ? __phys_addr_symbol+0x30/0x70
[  543.911282][ T8028]  ? __check_object_size+0x323/0x730
[  543.916844][ T8028]  netlink_sendmsg+0x93c/0xe40
[  543.921616][ T8028]  ? netlink_unicast+0x810/0x810
[  543.926661][ T8028]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  543.932074][ T8028]  ? netlink_unicast+0x810/0x810
[  543.937301][ T8028]  __sock_sendmsg+0xd5/0x180
[  543.942050][ T8028]  ____sys_sendmsg+0x6ac/0x940
[  543.946919][ T8028]  ? copy_msghdr_from_user+0x10b/0x160
[  543.952763][ T8028]  ? kernel_sendmsg+0x50/0x50
[  543.957528][ T8028]  ___sys_sendmsg+0x135/0x1d0
[  543.962385][ T8028]  ? do_recvmmsg+0x740/0x740
[  543.968193][ T8028]  ? find_held_lock+0x2d/0x110
[  543.973352][ T8028]  ? preempt_count_sub+0x160/0x160
[  543.978553][ T8028]  ? __fget_light+0x1fc/0x260
[  543.983489][ T8028]  __sys_sendmsg+0x117/0x1e0
[  543.988080][ T8028]  ? __sys_sendmsg_sock+0x30/0x30
[  543.993113][ T8028]  ? syscall_enter_from_user_mode+0x7f/0x120
[  543.999117][ T8028]  do_syscall_64+0x40/0x110
[  544.003634][ T8028]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  544.010595][ T8028] RIP: 0033:0x7fb700fd30b9
[  544.015057][ T8028] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  544.034765][ T8028] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  544.043213][ T8028] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  544.051392][ T8028] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  544.059471][ T8028] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  544.067644][ T8028] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  544.076714][ T8028] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  544.085040][ T8028]  </TASK>
[  544.090370][ T8028] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  544.151449][ T8029] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  544.161969][ T8029] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  544.171518][ T8029] CPU: 1 PID: 8029 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  544.182323][ T8029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  544.193261][ T8029] Call Trace:
[  544.196644][ T8029]  <TASK>
[  544.200720][ T8029]  dump_stack_lvl+0x125/0x1b0
[  544.206477][ T8029]  sysfs_warn_dup+0x7f/0xa0
[  544.211331][ T8029]  sysfs_create_dir_ns+0x249/0x2b0
[  544.216657][ T8029]  ? sysfs_create_mount_point+0xb0/0xb0
[  544.222444][ T8029]  ? spin_bug+0x1d0/0x1d0
[  544.227152][ T8029]  ? net_namespace+0x12/0x40
[  544.232295][ T8029]  ? device_namespace+0x8d/0xc0
[  544.237253][ T8029]  kobject_add_internal+0x2c8/0x970
[  544.242707][ T8029]  kobject_add+0x16f/0x240
[  544.247169][ T8029]  ? kset_create_and_add+0x190/0x190
[  544.252744][ T8029]  ? do_raw_spin_unlock+0x173/0x230
[  544.258142][ T8029]  ? kobject_put+0xbe/0x440
[  544.263144][ T8029]  ? device_add+0xc35/0x1aa0
[  544.268192][ T8029]  device_add+0x289/0x1aa0
[  544.272724][ T8029]  ? device_initialize+0x510/0x510
[  544.277873][ T8029]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  544.285012][ T8029]  ? __init_waitqueue_head+0xca/0x150
[  544.290411][ T8029]  netdev_register_kobject+0x183/0x3f0
[  544.296064][ T8029]  register_netdevice+0xbe6/0x14b0
[  544.301382][ T8029]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  544.307501][ T8029]  ? validate_linkmsg+0x6fc/0x9c0
[  544.312576][ T8029]  br_dev_newlink+0x27/0x110
[  544.317384][ T8029]  ? br_changelink+0x1760/0x1760
[  544.322531][ T8029]  __rtnl_newlink+0x1173/0x1930
[  544.327433][ T8029]  ? rtnl_link_unregister+0x260/0x260
[  544.332881][ T8029]  rtnl_newlink+0x67/0xa0
[  544.337246][ T8029]  ? __rtnl_newlink+0x1930/0x1930
[  544.342917][ T8029]  rtnetlink_rcv_msg+0x3c7/0xe00
[  544.348143][ T8029]  ? rtnl_fill_vf+0x4a0/0x4a0
[  544.353098][ T8029]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  544.359349][ T8029]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  544.365354][ T8029]  netlink_rcv_skb+0x16b/0x440
[  544.370337][ T8029]  ? rtnl_fill_vf+0x4a0/0x4a0
[  544.375038][ T8029]  ? netlink_ack+0x1380/0x1380
[  544.380008][ T8029]  ? lock_sync+0x190/0x190
[  544.384650][ T8029]  ? netlink_deliver_tap+0x1a0/0xd00
[  544.389947][ T8029]  ? _copy_from_iter+0x2c1/0x10f0
[  544.394987][ T8029]  netlink_unicast+0x53b/0x810
[  544.399789][ T8029]  ? netlink_attachskb+0x880/0x880
[  544.405253][ T8029]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  544.411420][ T8029]  ? __phys_addr_symbol+0x30/0x70
[  544.416473][ T8029]  ? __check_object_size+0x323/0x730
[  544.421977][ T8029]  netlink_sendmsg+0x93c/0xe40
[  544.426769][ T8029]  ? netlink_unicast+0x810/0x810
[  544.431827][ T8029]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  544.437313][ T8029]  ? netlink_unicast+0x810/0x810
[  544.442454][ T8029]  __sock_sendmsg+0xd5/0x180
[  544.447066][ T8029]  ____sys_sendmsg+0x6ac/0x940
[  544.452037][ T8029]  ? copy_msghdr_from_user+0x10b/0x160
[  544.457692][ T8029]  ? kernel_sendmsg+0x50/0x50
[  544.462578][ T8029]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  544.468763][ T8029]  ___sys_sendmsg+0x135/0x1d0
[  544.473591][ T8029]  ? do_recvmmsg+0x740/0x740
[  544.478722][ T8029]  ? find_held_lock+0x2d/0x110
[  544.484359][ T8029]  ? preempt_count_sub+0x160/0x160
[  544.490320][ T8029]  ? __fget_light+0x1fc/0x260
[  544.495294][ T8029]  __sys_sendmsg+0x117/0x1e0
[  544.500289][ T8029]  ? __sys_sendmsg_sock+0x30/0x30
[  544.506230][ T8029]  ? syscall_enter_from_user_mode+0x7f/0x120
[  544.513293][ T8029]  do_syscall_64+0x40/0x110
[  544.518001][ T8029]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  544.524440][ T8029] RIP: 0033:0x7fb700fd30b9
[  544.529036][ T8029] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  544.550132][ T8029] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  544.559313][ T8029] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  544.567845][ T8029] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  544.576605][ T8029] RBP: 0000000000084971 R08: 0000000000000000 R09: 0000000000000006
[  544.585023][ T8029] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  544.593251][ T8029] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  544.601255][ T8029]  </TASK>
[  544.607148][ T8029] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  544.665931][ T8029] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  544.675166][ T8029] CPU: 1 PID: 8029 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  544.685466][ T8029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  544.696185][ T8029] Call Trace:
[  544.699559][ T8029]  <TASK>
[  544.702487][ T8029]  dump_stack_lvl+0x125/0x1b0
[  544.707373][ T8029]  sysfs_warn_dup+0x7f/0xa0
[  544.711876][ T8029]  sysfs_create_dir_ns+0x249/0x2b0
[  544.717179][ T8029]  ? sysfs_create_mount_point+0xb0/0xb0
[  544.722920][ T8029]  ? spin_bug+0x1d0/0x1d0
[  544.727368][ T8029]  ? net_namespace+0x12/0x40
[  544.732551][ T8029]  ? device_namespace+0x8d/0xc0
[  544.737515][ T8029]  kobject_add_internal+0x2c8/0x970
[  544.742820][ T8029]  kobject_add+0x16f/0x240
[  544.747347][ T8029]  ? kset_create_and_add+0x190/0x190
[  544.752669][ T8029]  ? do_raw_spin_unlock+0x173/0x230
[  544.758149][ T8029]  ? kobject_put+0xbe/0x440
[  544.762670][ T8029]  ? device_add+0xc35/0x1aa0
[  544.767718][ T8029]  device_add+0x289/0x1aa0
[  544.772334][ T8029]  ? device_initialize+0x510/0x510
[  544.777459][ T8029]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  544.784581][ T8029]  ? __init_waitqueue_head+0xca/0x150
[  544.789976][ T8029]  netdev_register_kobject+0x183/0x3f0
[  544.795585][ T8029]  register_netdevice+0xbe6/0x14b0
[  544.800806][ T8029]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  544.807060][ T8029]  ? validate_linkmsg+0x6fc/0x9c0
[  544.812291][ T8029]  br_dev_newlink+0x27/0x110
[  544.817215][ T8029]  ? br_changelink+0x1760/0x1760
[  544.822334][ T8029]  __rtnl_newlink+0x1173/0x1930
[  544.827486][ T8029]  ? rtnl_link_unregister+0x260/0x260
[  544.833347][ T8029]  rtnl_newlink+0x67/0xa0
[  544.838217][ T8029]  ? __rtnl_newlink+0x1930/0x1930
[  544.843352][ T8029]  rtnetlink_rcv_msg+0x3c7/0xe00
[  544.848587][ T8029]  ? rtnl_fill_vf+0x4a0/0x4a0
[  544.853638][ T8029]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  544.860866][ T8029]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  544.866874][ T8029]  netlink_rcv_skb+0x16b/0x440
[  544.871732][ T8029]  ? rtnl_fill_vf+0x4a0/0x4a0
[  544.876424][ T8029]  ? netlink_ack+0x1380/0x1380
[  544.881464][ T8029]  ? lock_sync+0x190/0x190
[  544.885903][ T8029]  ? netlink_deliver_tap+0x1a0/0xd00
[  544.891382][ T8029]  ? _copy_from_iter+0x2c1/0x10f0
[  544.896615][ T8029]  netlink_unicast+0x53b/0x810
[  544.902108][ T8029]  ? netlink_attachskb+0x880/0x880
[  544.907512][ T8029]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  544.913890][ T8029]  ? __phys_addr_symbol+0x30/0x70
[  544.919111][ T8029]  ? __check_object_size+0x323/0x730
[  544.924621][ T8029]  netlink_sendmsg+0x93c/0xe40
[  544.929512][ T8029]  ? netlink_unicast+0x810/0x810
[  544.934627][ T8029]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  544.940201][ T8029]  ? netlink_unicast+0x810/0x810
[  544.945444][ T8029]  __sock_sendmsg+0xd5/0x180
[  544.950077][ T8029]  ____sys_sendmsg+0x6ac/0x940
[  544.954978][ T8029]  ? copy_msghdr_from_user+0x10b/0x160
[  544.960476][ T8029]  ? kernel_sendmsg+0x50/0x50
[  544.965246][ T8029]  ? hlock_class+0x4e/0x130
[  544.969759][ T8029]  ? __lock_acquire+0x14e0/0x3b10
[  544.975003][ T8029]  ___sys_sendmsg+0x135/0x1d0
[  544.979810][ T8029]  ? do_recvmmsg+0x740/0x740
[  544.984726][ T8029]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  544.990962][ T8029]  ? find_held_lock+0x2d/0x110
[  544.995871][ T8029]  ? __fget_light+0x1fc/0x260
[  545.000561][ T8029]  __sys_sendmsg+0x117/0x1e0
[  545.005158][ T8029]  ? __sys_sendmsg_sock+0x30/0x30
[  545.010189][ T8029]  ? __do_sys_rseq+0x750/0x750
[  545.014980][ T8029]  ? syscall_enter_from_user_mode+0x7f/0x120
[  545.021346][ T8029]  do_syscall_64+0x40/0x110
[  545.025865][ T8029]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  545.032289][ T8029] RIP: 0033:0x7fb700fd30b9
[  545.038292][ T8029] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  545.058175][ T8029] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  545.066868][ T8029] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  545.075025][ T8029] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  545.083345][ T8029] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  545.091582][ T8029] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  545.099688][ T8029] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  545.108202][ T8029]  </TASK>
[  545.114354][ T8029] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  545.171400][ T8030] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  545.182120][ T8030] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  545.191977][ T8030] CPU: 0 PID: 8030 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  545.202141][ T8030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  545.212303][ T8030] Call Trace:
[  545.215669][ T8030]  <TASK>
[  545.218589][ T8030]  dump_stack_lvl+0x125/0x1b0
[  545.223464][ T8030]  sysfs_warn_dup+0x7f/0xa0
[  545.228257][ T8030]  sysfs_create_dir_ns+0x249/0x2b0
[  545.233466][ T8030]  ? sysfs_create_mount_point+0xb0/0xb0
[  545.239276][ T8030]  ? spin_bug+0x1d0/0x1d0
[  545.243700][ T8030]  ? net_namespace+0x12/0x40
[  545.248330][ T8030]  ? device_namespace+0x8d/0xc0
[  545.253797][ T8030]  kobject_add_internal+0x2c8/0x970
[  545.259085][ T8030]  kobject_add+0x16f/0x240
[  545.263669][ T8030]  ? kset_create_and_add+0x190/0x190
[  545.268964][ T8030]  ? do_raw_spin_unlock+0x173/0x230
[  545.274330][ T8030]  ? kobject_put+0xbe/0x440
[  545.278831][ T8030]  ? device_add+0xc35/0x1aa0
[  545.283423][ T8030]  device_add+0x289/0x1aa0
[  545.287872][ T8030]  ? device_initialize+0x510/0x510
[  545.293290][ T8030]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  545.300224][ T8030]  ? __init_waitqueue_head+0xca/0x150
[  545.305712][ T8030]  netdev_register_kobject+0x183/0x3f0
[  545.311302][ T8030]  register_netdevice+0xbe6/0x14b0
[  545.316621][ T8030]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  545.323394][ T8030]  ? validate_linkmsg+0x6fc/0x9c0
[  545.328436][ T8030]  br_dev_newlink+0x27/0x110
[  545.333394][ T8030]  ? br_changelink+0x1760/0x1760
[  545.339103][ T8030]  __rtnl_newlink+0x1173/0x1930
[  545.344150][ T8030]  ? rtnl_link_unregister+0x260/0x260
[  545.350003][ T8030]  rtnl_newlink+0x67/0xa0
[  545.355159][ T8030]  ? __rtnl_newlink+0x1930/0x1930
[  545.360809][ T8030]  rtnetlink_rcv_msg+0x3c7/0xe00
[  545.365939][ T8030]  ? rtnl_fill_vf+0x4a0/0x4a0
[  545.370869][ T8030]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  545.376865][ T8030]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  545.382856][ T8030]  netlink_rcv_skb+0x16b/0x440
[  545.387905][ T8030]  ? rtnl_fill_vf+0x4a0/0x4a0
[  545.392587][ T8030]  ? netlink_ack+0x1380/0x1380
[  545.397545][ T8030]  ? lock_sync+0x190/0x190
[  545.402082][ T8030]  ? netlink_deliver_tap+0x1a0/0xd00
[  545.407903][ T8030]  ? _copy_from_iter+0x2c1/0x10f0
[  545.413029][ T8030]  netlink_unicast+0x53b/0x810
[  545.418009][ T8030]  ? netlink_attachskb+0x880/0x880
[  545.423143][ T8030]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  545.429185][ T8030]  ? __phys_addr_symbol+0x30/0x70
[  545.435960][ T8030]  ? __check_object_size+0x323/0x730
[  545.441591][ T8030]  netlink_sendmsg+0x93c/0xe40
[  545.446823][ T8030]  ? netlink_unicast+0x810/0x810
[  545.451870][ T8030]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  545.457501][ T8030]  ? netlink_unicast+0x810/0x810
[  545.462485][ T8030]  __sock_sendmsg+0xd5/0x180
[  545.467076][ T8030]  ____sys_sendmsg+0x6ac/0x940
[  545.471932][ T8030]  ? copy_msghdr_from_user+0x10b/0x160
[  545.477493][ T8030]  ? kernel_sendmsg+0x50/0x50
[  545.482274][ T8030]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  545.488617][ T8030]  ___sys_sendmsg+0x135/0x1d0
[  545.493647][ T8030]  ? do_recvmmsg+0x740/0x740
[  545.498233][ T8030]  ? find_held_lock+0x2d/0x110
[  545.503050][ T8030]  ? preempt_count_sub+0x160/0x160
[  545.508597][ T8030]  ? __fget_light+0x1fc/0x260
[  545.513646][ T8030]  __sys_sendmsg+0x117/0x1e0
[  545.518411][ T8030]  ? __sys_sendmsg_sock+0x30/0x30
[  545.523703][ T8030]  ? syscall_enter_from_user_mode+0x7f/0x120
[  545.529865][ T8030]  do_syscall_64+0x40/0x110
[  545.534540][ T8030]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  545.540630][ T8030] RIP: 0033:0x7fb700fd30b9
[  545.545158][ T8030] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  545.565302][ T8030] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  545.574365][ T8030] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  545.582789][ T8030] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  545.591473][ T8030] RBP: 0000000000084d6a R08: 0000000000000000 R09: 0000000000000006
[  545.599811][ T8030] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  545.608628][ T8030] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  545.616881][ T8030]  </TASK>
[  545.622972][ T8030] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  545.675935][ T8030] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  545.685600][ T8030] CPU: 1 PID: 8030 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  545.696738][ T8030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  545.707057][ T8030] Call Trace:
[  545.710347][ T8030]  <TASK>
[  545.713413][ T8030]  dump_stack_lvl+0x125/0x1b0
[  545.718121][ T8030]  sysfs_warn_dup+0x7f/0xa0
[  545.722691][ T8030]  sysfs_create_dir_ns+0x249/0x2b0
[  545.728052][ T8030]  ? sysfs_create_mount_point+0xb0/0xb0
[  545.733988][ T8030]  ? spin_bug+0x1d0/0x1d0
[  545.738485][ T8030]  ? net_namespace+0x12/0x40
[  545.743082][ T8030]  ? device_namespace+0x8d/0xc0
[  545.748037][ T8030]  kobject_add_internal+0x2c8/0x970
[  545.753515][ T8030]  kobject_add+0x16f/0x240
[  545.758042][ T8030]  ? kset_create_and_add+0x190/0x190
[  545.763526][ T8030]  ? do_raw_spin_unlock+0x173/0x230
[  545.769004][ T8030]  ? kobject_put+0xbe/0x440
[  545.773610][ T8030]  ? device_add+0xc35/0x1aa0
[  545.778393][ T8030]  device_add+0x289/0x1aa0
[  545.783082][ T8030]  ? device_initialize+0x510/0x510
[  545.788292][ T8030]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  545.796120][ T8030]  ? __init_waitqueue_head+0xca/0x150
[  545.801754][ T8030]  netdev_register_kobject+0x183/0x3f0
[  545.807435][ T8030]  register_netdevice+0xbe6/0x14b0
[  545.812668][ T8030]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  545.818684][ T8030]  ? validate_linkmsg+0x6fc/0x9c0
[  545.824085][ T8030]  br_dev_newlink+0x27/0x110
[  545.829044][ T8030]  ? br_changelink+0x1760/0x1760
[  545.834637][ T8030]  __rtnl_newlink+0x1173/0x1930
[  545.839720][ T8030]  ? rtnl_link_unregister+0x260/0x260
[  545.845307][ T8030]  rtnl_newlink+0x67/0xa0
[  545.849754][ T8030]  ? __rtnl_newlink+0x1930/0x1930
[  545.854817][ T8030]  rtnetlink_rcv_msg+0x3c7/0xe00
[  545.859842][ T8030]  ? rtnl_fill_vf+0x4a0/0x4a0
[  545.865767][ T8030]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  545.871775][ T8030]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  545.877876][ T8030]  netlink_rcv_skb+0x16b/0x440
[  545.882938][ T8030]  ? rtnl_fill_vf+0x4a0/0x4a0
[  545.887653][ T8030]  ? netlink_ack+0x1380/0x1380
[  545.892445][ T8030]  ? lock_sync+0x190/0x190
[  545.897308][ T8030]  ? netlink_deliver_tap+0x1a0/0xd00
[  545.902866][ T8030]  ? _copy_from_iter+0x2c1/0x10f0
[  545.908120][ T8030]  netlink_unicast+0x53b/0x810
[  545.913023][ T8030]  ? netlink_attachskb+0x880/0x880
[  545.918566][ T8030]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  545.924754][ T8030]  ? __phys_addr_symbol+0x30/0x70
[  545.929983][ T8030]  ? __check_object_size+0x323/0x730
[  545.935637][ T8030]  netlink_sendmsg+0x93c/0xe40
[  545.940492][ T8030]  ? netlink_unicast+0x810/0x810
[  545.945661][ T8030]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  545.951191][ T8030]  ? netlink_unicast+0x810/0x810
[  545.956649][ T8030]  __sock_sendmsg+0xd5/0x180
[  545.961377][ T8030]  ____sys_sendmsg+0x6ac/0x940
[  545.966302][ T8030]  ? copy_msghdr_from_user+0x10b/0x160
[  545.972049][ T8030]  ? kernel_sendmsg+0x50/0x50
[  545.976918][ T8030]  ___sys_sendmsg+0x135/0x1d0
[  545.981798][ T8030]  ? do_recvmmsg+0x740/0x740
[  545.986671][ T8030]  ? find_held_lock+0x2d/0x110
[  545.991547][ T8030]  ? preempt_count_sub+0x160/0x160
[  545.996860][ T8030]  ? __fget_light+0x1fc/0x260
[  546.001552][ T8030]  __sys_sendmsg+0x117/0x1e0
[  546.006243][ T8030]  ? __sys_sendmsg_sock+0x30/0x30
[  546.011314][ T8030]  ? syscall_enter_from_user_mode+0x7f/0x120
[  546.017763][ T8030]  do_syscall_64+0x40/0x110
[  546.022378][ T8030]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  546.028482][ T8030] RIP: 0033:0x7fb700fd30b9
[  546.033428][ T8030] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  546.054607][ T8030] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  546.063209][ T8030] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  546.071371][ T8030] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  546.079996][ T8030] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  546.088257][ T8030] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  546.096521][ T8030] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  546.104788][ T8030]  </TASK>
[  546.110133][ T8030] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  546.170904][ T8031] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  546.181685][ T8031] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  546.191164][ T8031] CPU: 1 PID: 8031 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  546.201606][ T8031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  546.212298][ T8031] Call Trace:
[  546.215623][ T8031]  <TASK>
[  546.218780][ T8031]  dump_stack_lvl+0x125/0x1b0
[  546.223679][ T8031]  sysfs_warn_dup+0x7f/0xa0
[  546.228488][ T8031]  sysfs_create_dir_ns+0x249/0x2b0
[  546.233830][ T8031]  ? sysfs_create_mount_point+0xb0/0xb0
[  546.239583][ T8031]  ? spin_bug+0x1d0/0x1d0
[  546.244022][ T8031]  ? net_namespace+0x12/0x40
[  546.248891][ T8031]  ? device_namespace+0x8d/0xc0
[  546.254366][ T8031]  kobject_add_internal+0x2c8/0x970
[  546.259839][ T8031]  kobject_add+0x16f/0x240
[  546.264658][ T8031]  ? kset_create_and_add+0x190/0x190
[  546.270126][ T8031]  ? do_raw_spin_unlock+0x173/0x230
[  546.275959][ T8031]  ? kobject_put+0xbe/0x440
[  546.280555][ T8031]  ? device_add+0xc35/0x1aa0
[  546.285258][ T8031]  device_add+0x289/0x1aa0
[  546.289684][ T8031]  ? device_initialize+0x510/0x510
[  546.294888][ T8031]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  546.302125][ T8031]  ? __init_waitqueue_head+0xca/0x150
[  546.307601][ T8031]  netdev_register_kobject+0x183/0x3f0
[  546.313167][ T8031]  register_netdevice+0xbe6/0x14b0
[  546.318378][ T8031]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  546.324627][ T8031]  ? validate_linkmsg+0x6fc/0x9c0
[  546.329659][ T8031]  br_dev_newlink+0x27/0x110
[  546.334261][ T8031]  ? br_changelink+0x1760/0x1760
[  546.339291][ T8031]  __rtnl_newlink+0x1173/0x1930
[  546.344176][ T8031]  ? rtnl_link_unregister+0x260/0x260
[  546.349962][ T8031]  rtnl_newlink+0x67/0xa0
[  546.354303][ T8031]  ? __rtnl_newlink+0x1930/0x1930
[  546.359759][ T8031]  rtnetlink_rcv_msg+0x3c7/0xe00
[  546.364808][ T8031]  ? rtnl_fill_vf+0x4a0/0x4a0
[  546.369509][ T8031]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  546.375710][ T8031]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  546.382007][ T8031]  netlink_rcv_skb+0x16b/0x440
[  546.387009][ T8031]  ? rtnl_fill_vf+0x4a0/0x4a0
[  546.391798][ T8031]  ? netlink_ack+0x1380/0x1380
[  546.396660][ T8031]  ? lock_sync+0x190/0x190
[  546.401556][ T8031]  ? netlink_deliver_tap+0x1a0/0xd00
[  546.406943][ T8031]  ? _copy_from_iter+0x2c1/0x10f0
[  546.412078][ T8031]  netlink_unicast+0x53b/0x810
[  546.416866][ T8031]  ? netlink_attachskb+0x880/0x880
[  546.422075][ T8031]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  546.428154][ T8031]  ? __phys_addr_symbol+0x30/0x70
[  546.433900][ T8031]  ? __check_object_size+0x323/0x730
[  546.439475][ T8031]  netlink_sendmsg+0x93c/0xe40
[  546.444365][ T8031]  ? netlink_unicast+0x810/0x810
[  546.449588][ T8031]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  546.455145][ T8031]  ? netlink_unicast+0x810/0x810
[  546.460230][ T8031]  __sock_sendmsg+0xd5/0x180
[  546.465186][ T8031]  ____sys_sendmsg+0x6ac/0x940
[  546.470140][ T8031]  ? copy_msghdr_from_user+0x10b/0x160
[  546.476127][ T8031]  ? kernel_sendmsg+0x50/0x50
[  546.480975][ T8031]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  546.487089][ T8031]  ___sys_sendmsg+0x135/0x1d0
[  546.491952][ T8031]  ? do_recvmmsg+0x740/0x740
[  546.497153][ T8031]  ? find_held_lock+0x2d/0x110
[  546.501961][ T8031]  ? preempt_count_sub+0x160/0x160
[  546.507362][ T8031]  ? __fget_light+0x1fc/0x260
[  546.512333][ T8031]  __sys_sendmsg+0x117/0x1e0
[  546.517321][ T8031]  ? __sys_sendmsg_sock+0x30/0x30
[  546.522666][ T8031]  ? xfd_validate_state+0x5d/0x180
[  546.527814][ T8031]  ? syscall_enter_from_user_mode+0x7f/0x120
[  546.534403][ T8031]  do_syscall_64+0x40/0x110
[  546.539106][ T8031]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  546.545136][ T8031] RIP: 0033:0x7fb700fd30b9
[  546.549740][ T8031] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  546.569913][ T8031] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  546.578366][ T8031] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  546.586773][ T8031] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  546.594830][ T8031] RBP: 0000000000085166 R08: 0000000000000000 R09: 0000000000000006
[  546.603249][ T8031] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  546.611480][ T8031] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  546.620074][ T8031]  </TASK>
[  546.626611][ T8031] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  546.685896][ T8031] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  546.695384][ T8031] CPU: 0 PID: 8031 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  546.706035][ T8031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  546.716399][ T8031] Call Trace:
[  546.719679][ T8031]  <TASK>
[  546.722613][ T8031]  dump_stack_lvl+0x125/0x1b0
[  546.727383][ T8031]  sysfs_warn_dup+0x7f/0xa0
[  546.732179][ T8031]  sysfs_create_dir_ns+0x249/0x2b0
[  546.737465][ T8031]  ? sysfs_create_mount_point+0xb0/0xb0
[  546.743188][ T8031]  ? spin_bug+0x1d0/0x1d0
[  546.747739][ T8031]  ? net_namespace+0x12/0x40
[  546.752424][ T8031]  ? device_namespace+0x8d/0xc0
[  546.757564][ T8031]  kobject_add_internal+0x2c8/0x970
[  546.763049][ T8031]  kobject_add+0x16f/0x240
[  546.767906][ T8031]  ? kset_create_and_add+0x190/0x190
[  546.773466][ T8031]  ? do_raw_spin_unlock+0x173/0x230
[  546.778941][ T8031]  ? kobject_put+0xbe/0x440
[  546.783987][ T8031]  ? device_add+0xc35/0x1aa0
[  546.788863][ T8031]  device_add+0x289/0x1aa0
[  546.793418][ T8031]  ? device_initialize+0x510/0x510
[  546.798804][ T8031]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  546.806037][ T8031]  ? __init_waitqueue_head+0xca/0x150
[  546.812053][ T8031]  netdev_register_kobject+0x183/0x3f0
[  546.818323][ T8031]  register_netdevice+0xbe6/0x14b0
[  546.823850][ T8031]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  546.830476][ T8031]  ? validate_linkmsg+0x6fc/0x9c0
[  546.835972][ T8031]  br_dev_newlink+0x27/0x110
[  546.840932][ T8031]  ? br_changelink+0x1760/0x1760
[  546.846166][ T8031]  __rtnl_newlink+0x1173/0x1930
[  546.851578][ T8031]  ? rtnl_link_unregister+0x260/0x260
[  546.857272][ T8031]  rtnl_newlink+0x67/0xa0
[  546.861885][ T8031]  ? __rtnl_newlink+0x1930/0x1930
[  546.867205][ T8031]  rtnetlink_rcv_msg+0x3c7/0xe00
[  546.872332][ T8031]  ? rtnl_fill_vf+0x4a0/0x4a0
[  546.877021][ T8031]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  546.883369][ T8031]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  546.889375][ T8031]  netlink_rcv_skb+0x16b/0x440
[  546.894162][ T8031]  ? rtnl_fill_vf+0x4a0/0x4a0
[  546.898939][ T8031]  ? netlink_ack+0x1380/0x1380
[  546.903822][ T8031]  ? lock_sync+0x190/0x190
[  546.908463][ T8031]  ? netlink_deliver_tap+0x1a0/0xd00
[  546.914121][ T8031]  ? _copy_from_iter+0x2c1/0x10f0
[  546.919254][ T8031]  netlink_unicast+0x53b/0x810
[  546.924309][ T8031]  ? netlink_attachskb+0x880/0x880
[  546.929526][ T8031]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  546.935951][ T8031]  ? __phys_addr_symbol+0x30/0x70
[  546.941367][ T8031]  ? __check_object_size+0x323/0x730
[  546.946947][ T8031]  netlink_sendmsg+0x93c/0xe40
[  546.951742][ T8031]  ? netlink_unicast+0x810/0x810
[  546.956958][ T8031]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  546.962710][ T8031]  ? netlink_unicast+0x810/0x810
[  546.967931][ T8031]  __sock_sendmsg+0xd5/0x180
[  546.972837][ T8031]  ____sys_sendmsg+0x6ac/0x940
[  546.977618][ T8031]  ? copy_msghdr_from_user+0x10b/0x160
[  546.983178][ T8031]  ? kernel_sendmsg+0x50/0x50
[  546.988057][ T8031]  ? hlock_class+0x4e/0x130
[  546.992674][ T8031]  ? __lock_acquire+0x14e0/0x3b10
[  546.997819][ T8031]  ___sys_sendmsg+0x135/0x1d0
[  547.002865][ T8031]  ? do_recvmmsg+0x740/0x740
[  547.007571][ T8031]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  547.013751][ T8031]  ? find_held_lock+0x2d/0x110
[  547.018557][ T8031]  ? __fget_light+0x1fc/0x260
[  547.023354][ T8031]  __sys_sendmsg+0x117/0x1e0
[  547.027965][ T8031]  ? __sys_sendmsg_sock+0x30/0x30
[  547.033135][ T8031]  ? xfd_validate_state+0x5d/0x180
[  547.038272][ T8031]  ? syscall_enter_from_user_mode+0x7f/0x120
[  547.044302][ T8031]  do_syscall_64+0x40/0x110
[  547.049034][ T8031]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  547.054948][ T8031] RIP: 0033:0x7fb700fd30b9
[  547.059465][ T8031] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  547.079516][ T8031] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  547.088282][ T8031] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  547.096551][ T8031] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  547.104651][ T8031] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  547.112799][ T8031] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  547.121142][ T8031] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  547.129387][ T8031]  </TASK>
[  547.133358][ T8031] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  547.191065][ T8032] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  547.202066][ T8032] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  547.211720][ T8032] CPU: 0 PID: 8032 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  547.221903][ T8032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  547.232679][ T8032] Call Trace:
[  547.236379][ T8032]  <TASK>
[  547.240032][ T8032]  dump_stack_lvl+0x125/0x1b0
[  547.245162][ T8032]  sysfs_warn_dup+0x7f/0xa0
[  547.250060][ T8032]  sysfs_create_dir_ns+0x249/0x2b0
[  547.255388][ T8032]  ? sysfs_create_mount_point+0xb0/0xb0
[  547.261396][ T8032]  ? spin_bug+0x1d0/0x1d0
[  547.266831][ T8032]  ? net_namespace+0x12/0x40
[  547.271437][ T8032]  ? device_namespace+0x8d/0xc0
[  547.276305][ T8032]  kobject_add_internal+0x2c8/0x970
[  547.281787][ T8032]  kobject_add+0x16f/0x240
[  547.286212][ T8032]  ? kset_create_and_add+0x190/0x190
[  547.291853][ T8032]  ? do_raw_spin_unlock+0x173/0x230
[  547.297749][ T8032]  ? kobject_put+0xbe/0x440
[  547.302364][ T8032]  ? device_add+0xc35/0x1aa0
[  547.307226][ T8032]  device_add+0x289/0x1aa0
[  547.311653][ T8032]  ? device_initialize+0x510/0x510
[  547.316780][ T8032]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  547.323650][ T8032]  ? __init_waitqueue_head+0xca/0x150
[  547.329124][ T8032]  netdev_register_kobject+0x183/0x3f0
[  547.334696][ T8032]  register_netdevice+0xbe6/0x14b0
[  547.339824][ T8032]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  547.345725][ T8032]  ? validate_linkmsg+0x6fc/0x9c0
[  547.351290][ T8032]  br_dev_newlink+0x27/0x110
[  547.355895][ T8032]  ? br_changelink+0x1760/0x1760
[  547.361011][ T8032]  __rtnl_newlink+0x1173/0x1930
[  547.366064][ T8032]  ? rtnl_link_unregister+0x260/0x260
[  547.371731][ T8032]  rtnl_newlink+0x67/0xa0
[  547.376155][ T8032]  ? __rtnl_newlink+0x1930/0x1930
[  547.381367][ T8032]  rtnetlink_rcv_msg+0x3c7/0xe00
[  547.386492][ T8032]  ? rtnl_fill_vf+0x4a0/0x4a0
[  547.391182][ T8032]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  547.397179][ T8032]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  547.403472][ T8032]  netlink_rcv_skb+0x16b/0x440
[  547.408601][ T8032]  ? rtnl_fill_vf+0x4a0/0x4a0
[  547.413299][ T8032]  ? netlink_ack+0x1380/0x1380
[  547.418114][ T8032]  ? lock_sync+0x190/0x190
[  547.422686][ T8032]  ? netlink_deliver_tap+0x1a0/0xd00
[  547.428016][ T8032]  ? _copy_from_iter+0x2c1/0x10f0
[  547.433179][ T8032]  netlink_unicast+0x53b/0x810
[  547.438155][ T8032]  ? netlink_attachskb+0x880/0x880
[  547.443283][ T8032]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  547.449361][ T8032]  ? __phys_addr_symbol+0x30/0x70
[  547.454543][ T8032]  ? __check_object_size+0x323/0x730
[  547.460996][ T8032]  netlink_sendmsg+0x93c/0xe40
[  547.466134][ T8032]  ? netlink_unicast+0x810/0x810
[  547.471176][ T8032]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  547.476596][ T8032]  ? netlink_unicast+0x810/0x810
[  547.481734][ T8032]  __sock_sendmsg+0xd5/0x180
[  547.486426][ T8032]  ____sys_sendmsg+0x6ac/0x940
[  547.491546][ T8032]  ? copy_msghdr_from_user+0x10b/0x160
[  547.497364][ T8032]  ? kernel_sendmsg+0x50/0x50
[  547.502228][ T8032]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  547.508590][ T8032]  ___sys_sendmsg+0x135/0x1d0
[  547.513470][ T8032]  ? do_recvmmsg+0x740/0x740
[  547.518679][ T8032]  ? find_held_lock+0x2d/0x110
[  547.525644][ T8032]  ? preempt_count_sub+0x160/0x160
[  547.530803][ T8032]  ? __fget_light+0x1fc/0x260
[  547.535513][ T8032]  __sys_sendmsg+0x117/0x1e0
[  547.540409][ T8032]  ? __sys_sendmsg_sock+0x30/0x30
[  547.546155][ T8032]  ? syscall_enter_from_user_mode+0x7f/0x120
[  547.552588][ T8032]  do_syscall_64+0x40/0x110
[  547.557361][ T8032]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  547.564666][ T8032] RIP: 0033:0x7fb700fd30b9
[  547.569087][ T8032] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  547.588878][ T8032] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  547.597473][ T8032] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  547.605813][ T8032] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  547.614157][ T8032] RBP: 000000000008554d R08: 0000000000000000 R09: 0000000000000006
[  547.622309][ T8032] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  547.630482][ T8032] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  547.638752][ T8032]  </TASK>
[  547.642119][ T8032] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  547.714933][ T8032] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  547.724450][ T8032] CPU: 0 PID: 8032 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  547.735017][ T8032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  547.745174][ T8032] Call Trace:
[  547.748741][ T8032]  <TASK>
[  547.751878][ T8032]  dump_stack_lvl+0x125/0x1b0
[  547.756769][ T8032]  sysfs_warn_dup+0x7f/0xa0
[  547.761372][ T8032]  sysfs_create_dir_ns+0x249/0x2b0
[  547.766671][ T8032]  ? sysfs_create_mount_point+0xb0/0xb0
[  547.772414][ T8032]  ? spin_bug+0x1d0/0x1d0
[  547.776750][ T8032]  ? net_namespace+0x12/0x40
[  547.781617][ T8032]  ? device_namespace+0x8d/0xc0
[  547.786599][ T8032]  kobject_add_internal+0x2c8/0x970
[  547.791810][ T8032]  kobject_add+0x16f/0x240
[  547.796256][ T8032]  ? kset_create_and_add+0x190/0x190
[  547.801635][ T8032]  ? do_raw_spin_unlock+0x173/0x230
[  547.806836][ T8032]  ? kobject_put+0xbe/0x440
[  547.811468][ T8032]  ? device_add+0xc35/0x1aa0
[  547.816291][ T8032]  device_add+0x289/0x1aa0
[  547.820766][ T8032]  ? device_initialize+0x510/0x510
[  547.826242][ T8032]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  547.833459][ T8032]  ? __init_waitqueue_head+0xca/0x150
[  547.838862][ T8032]  netdev_register_kobject+0x183/0x3f0
[  547.846689][ T8032]  register_netdevice+0xbe6/0x14b0
[  547.851828][ T8032]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  547.857822][ T8032]  ? validate_linkmsg+0x6fc/0x9c0
[  547.863214][ T8032]  br_dev_newlink+0x27/0x110
[  547.868182][ T8032]  ? br_changelink+0x1760/0x1760
[  547.873232][ T8032]  __rtnl_newlink+0x1173/0x1930
[  547.878205][ T8032]  ? rtnl_link_unregister+0x260/0x260
[  547.883730][ T8032]  rtnl_newlink+0x67/0xa0
[  547.888093][ T8032]  ? __rtnl_newlink+0x1930/0x1930
[  547.893215][ T8032]  rtnetlink_rcv_msg+0x3c7/0xe00
[  547.898651][ T8032]  ? rtnl_fill_vf+0x4a0/0x4a0
[  547.903622][ T8032]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  547.909879][ T8032]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  547.916703][ T8032]  netlink_rcv_skb+0x16b/0x440
[  547.922186][ T8032]  ? rtnl_fill_vf+0x4a0/0x4a0
[  547.927696][ T8032]  ? netlink_ack+0x1380/0x1380
[  547.932767][ T8032]  ? lock_sync+0x190/0x190
[  547.937395][ T8032]  ? netlink_deliver_tap+0x1a0/0xd00
[  547.943741][ T8032]  ? _copy_from_iter+0x2c1/0x10f0
[  547.948960][ T8032]  netlink_unicast+0x53b/0x810
[  547.954027][ T8032]  ? netlink_attachskb+0x880/0x880
[  547.959894][ T8032]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  547.966325][ T8032]  ? __phys_addr_symbol+0x30/0x70
[  547.971618][ T8032]  ? __check_object_size+0x323/0x730
[  547.977085][ T8032]  netlink_sendmsg+0x93c/0xe40
[  547.981897][ T8032]  ? netlink_unicast+0x810/0x810
[  547.987207][ T8032]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  547.992855][ T8032]  ? netlink_unicast+0x810/0x810
[  547.997982][ T8032]  __sock_sendmsg+0xd5/0x180
[  548.002670][ T8032]  ____sys_sendmsg+0x6ac/0x940
[  548.007581][ T8032]  ? copy_msghdr_from_user+0x10b/0x160
[  548.013145][ T8032]  ? kernel_sendmsg+0x50/0x50
[  548.018017][ T8032]  ___sys_sendmsg+0x135/0x1d0
[  548.022722][ T8032]  ? do_recvmmsg+0x740/0x740
[  548.027851][ T8032]  ? find_held_lock+0x2d/0x110
[  548.032639][ T8032]  ? preempt_count_sub+0x160/0x160
[  548.037771][ T8032]  ? __fget_light+0x1fc/0x260
[  548.043036][ T8032]  __sys_sendmsg+0x117/0x1e0
[  548.047826][ T8032]  ? __sys_sendmsg_sock+0x30/0x30
[  548.052974][ T8032]  ? syscall_enter_from_user_mode+0x7f/0x120
[  548.059056][ T8032]  do_syscall_64+0x40/0x110
[  548.063580][ T8032]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  548.069485][ T8032] RIP: 0033:0x7fb700fd30b9
[  548.073901][ T8032] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  548.094485][ T8032] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  548.103761][ T8032] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  548.111733][ T8032] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  548.119992][ T8032] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  548.128049][ T8032] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  548.136192][ T8032] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  548.144444][ T8032]  </TASK>
[  548.148668][ T8032] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  548.211644][ T8033] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  548.222466][ T8033] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  548.231851][ T8033] CPU: 0 PID: 8033 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  548.242305][ T8033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  548.252696][ T8033] Call Trace:
[  548.256363][ T8033]  <TASK>
[  548.259326][ T8033]  dump_stack_lvl+0x125/0x1b0
[  548.264878][ T8033]  sysfs_warn_dup+0x7f/0xa0
[  548.269756][ T8033]  sysfs_create_dir_ns+0x249/0x2b0
[  548.275057][ T8033]  ? sysfs_create_mount_point+0xb0/0xb0
[  548.280720][ T8033]  ? spin_bug+0x1d0/0x1d0
[  548.285141][ T8033]  ? net_namespace+0x12/0x40
[  548.289830][ T8033]  ? device_namespace+0x8d/0xc0
[  548.295639][ T8033]  kobject_add_internal+0x2c8/0x970
[  548.301141][ T8033]  kobject_add+0x16f/0x240
[  548.305829][ T8033]  ? kset_create_and_add+0x190/0x190
[  548.311336][ T8033]  ? do_raw_spin_unlock+0x173/0x230
[  548.316620][ T8033]  ? kobject_put+0xbe/0x440
[  548.321305][ T8033]  ? device_add+0xc35/0x1aa0
[  548.326131][ T8033]  device_add+0x289/0x1aa0
[  548.330646][ T8033]  ? device_initialize+0x510/0x510
[  548.335933][ T8033]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  548.343057][ T8033]  ? __init_waitqueue_head+0xca/0x150
[  548.348625][ T8033]  netdev_register_kobject+0x183/0x3f0
[  548.354197][ T8033]  register_netdevice+0xbe6/0x14b0
[  548.359415][ T8033]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  548.365729][ T8033]  ? validate_linkmsg+0x6fc/0x9c0
[  548.371575][ T8033]  br_dev_newlink+0x27/0x110
[  548.376352][ T8033]  ? br_changelink+0x1760/0x1760
[  548.381298][ T8033]  __rtnl_newlink+0x1173/0x1930
[  548.386166][ T8033]  ? rtnl_link_unregister+0x260/0x260
[  548.391586][ T8033]  rtnl_newlink+0x67/0xa0
[  548.395926][ T8033]  ? __rtnl_newlink+0x1930/0x1930
[  548.400965][ T8033]  rtnetlink_rcv_msg+0x3c7/0xe00
[  548.406120][ T8033]  ? rtnl_fill_vf+0x4a0/0x4a0
[  548.410893][ T8033]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  548.416986][ T8033]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  548.423618][ T8033]  netlink_rcv_skb+0x16b/0x440
[  548.428979][ T8033]  ? rtnl_fill_vf+0x4a0/0x4a0
[  548.433754][ T8033]  ? netlink_ack+0x1380/0x1380
[  548.439308][ T8033]  ? lock_sync+0x190/0x190
[  548.443921][ T8033]  ? netlink_deliver_tap+0x1a0/0xd00
[  548.449304][ T8033]  ? _copy_from_iter+0x2c1/0x10f0
[  548.454524][ T8033]  netlink_unicast+0x53b/0x810
[  548.459668][ T8033]  ? netlink_attachskb+0x880/0x880
[  548.464970][ T8033]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  548.471147][ T8033]  ? __phys_addr_symbol+0x30/0x70
[  548.476353][ T8033]  ? __check_object_size+0x323/0x730
[  548.481923][ T8033]  netlink_sendmsg+0x93c/0xe40
[  548.486966][ T8033]  ? netlink_unicast+0x810/0x810
[  548.491917][ T8033]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  548.497396][ T8033]  ? netlink_unicast+0x810/0x810
[  548.502631][ T8033]  __sock_sendmsg+0xd5/0x180
[  548.507546][ T8033]  ____sys_sendmsg+0x6ac/0x940
[  548.512597][ T8033]  ? copy_msghdr_from_user+0x10b/0x160
[  548.518682][ T8033]  ? kernel_sendmsg+0x50/0x50
[  548.523376][ T8033]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  548.530264][ T8033]  ___sys_sendmsg+0x135/0x1d0
[  548.535250][ T8033]  ? do_recvmmsg+0x740/0x740
[  548.539863][ T8033]  ? find_held_lock+0x2d/0x110
[  548.544841][ T8033]  ? preempt_count_sub+0x160/0x160
[  548.550275][ T8033]  ? __fget_light+0x1fc/0x260
[  548.555163][ T8033]  __sys_sendmsg+0x117/0x1e0
[  548.559777][ T8033]  ? __sys_sendmsg_sock+0x30/0x30
[  548.564943][ T8033]  ? syscall_enter_from_user_mode+0x7f/0x120
[  548.571608][ T8033]  do_syscall_64+0x40/0x110
[  548.576391][ T8033]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  548.582655][ T8033] RIP: 0033:0x7fb700fd30b9
[  548.587072][ T8033] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  548.607495][ T8033] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  548.616583][ T8033] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  548.625016][ T8033] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  548.633166][ T8033] RBP: 000000000008594a R08: 0000000000000000 R09: 0000000000000006
[  548.641581][ T8033] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  548.650844][ T8033] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  548.658942][ T8033]  </TASK>
[  548.662497][ T8033] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  548.735977][ T8033] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  548.745574][ T8033] CPU: 1 PID: 8033 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  548.756455][ T8033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  548.766776][ T8033] Call Trace:
[  548.770511][ T8033]  <TASK>
[  548.773527][ T8033]  dump_stack_lvl+0x125/0x1b0
[  548.778228][ T8033]  sysfs_warn_dup+0x7f/0xa0
[  548.782956][ T8033]  sysfs_create_dir_ns+0x249/0x2b0
[  548.788310][ T8033]  ? sysfs_create_mount_point+0xb0/0xb0
[  548.794122][ T8033]  ? spin_bug+0x1d0/0x1d0
[  548.799013][ T8033]  ? net_namespace+0x12/0x40
[  548.803795][ T8033]  ? device_namespace+0x8d/0xc0
[  548.808666][ T8033]  kobject_add_internal+0x2c8/0x970
[  548.813891][ T8033]  kobject_add+0x16f/0x240
[  548.818804][ T8033]  ? kset_create_and_add+0x190/0x190
[  548.824376][ T8033]  ? do_raw_spin_unlock+0x173/0x230
[  548.829850][ T8033]  ? kobject_put+0xbe/0x440
[  548.834974][ T8033]  ? device_add+0xc35/0x1aa0
[  548.840025][ T8033]  device_add+0x289/0x1aa0
[  548.844638][ T8033]  ? device_initialize+0x510/0x510
[  548.849844][ T8033]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  548.856804][ T8033]  ? __init_waitqueue_head+0xca/0x150
[  548.862304][ T8033]  netdev_register_kobject+0x183/0x3f0
[  548.867882][ T8033]  register_netdevice+0xbe6/0x14b0
[  548.873105][ T8033]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  548.879891][ T8033]  ? validate_linkmsg+0x6fc/0x9c0
[  548.885018][ T8033]  br_dev_newlink+0x27/0x110
[  548.889608][ T8033]  ? br_changelink+0x1760/0x1760
[  548.894825][ T8033]  __rtnl_newlink+0x1173/0x1930
[  548.899784][ T8033]  ? rtnl_link_unregister+0x260/0x260
[  548.905281][ T8033]  rtnl_newlink+0x67/0xa0
[  548.909627][ T8033]  ? __rtnl_newlink+0x1930/0x1930
[  548.914853][ T8033]  rtnetlink_rcv_msg+0x3c7/0xe00
[  548.919981][ T8033]  ? rtnl_fill_vf+0x4a0/0x4a0
[  548.924836][ T8033]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  548.931016][ T8033]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  548.937103][ T8033]  netlink_rcv_skb+0x16b/0x440
[  548.942397][ T8033]  ? rtnl_fill_vf+0x4a0/0x4a0
[  548.947571][ T8033]  ? netlink_ack+0x1380/0x1380
[  548.952369][ T8033]  ? lock_sync+0x190/0x190
[  548.956810][ T8033]  ? netlink_deliver_tap+0x1a0/0xd00
[  548.962406][ T8033]  ? _copy_from_iter+0x2c1/0x10f0
[  548.967637][ T8033]  netlink_unicast+0x53b/0x810
[  548.972609][ T8033]  ? netlink_attachskb+0x880/0x880
[  548.977761][ T8033]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  548.983655][ T8033]  ? __phys_addr_symbol+0x30/0x70
[  548.988696][ T8033]  ? __check_object_size+0x323/0x730
[  548.994097][ T8033]  netlink_sendmsg+0x93c/0xe40
[  548.998891][ T8033]  ? netlink_unicast+0x810/0x810
[  549.004023][ T8033]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  549.009417][ T8033]  ? netlink_unicast+0x810/0x810
[  549.014361][ T8033]  __sock_sendmsg+0xd5/0x180
[  549.019236][ T8033]  ____sys_sendmsg+0x6ac/0x940
[  549.024009][ T8033]  ? copy_msghdr_from_user+0x10b/0x160
[  549.029651][ T8033]  ? kernel_sendmsg+0x50/0x50
[  549.034424][ T8033]  ___sys_sendmsg+0x135/0x1d0
[  549.039409][ T8033]  ? do_recvmmsg+0x740/0x740
[  549.044232][ T8033]  ? find_held_lock+0x2d/0x110
[  549.049356][ T8033]  ? preempt_count_sub+0x160/0x160
[  549.054481][ T8033]  ? __fget_light+0x1fc/0x260
[  549.059165][ T8033]  __sys_sendmsg+0x117/0x1e0
[  549.063779][ T8033]  ? __sys_sendmsg_sock+0x30/0x30
[  549.068993][ T8033]  ? syscall_enter_from_user_mode+0x7f/0x120
[  549.075072][ T8033]  do_syscall_64+0x40/0x110
[  549.079610][ T8033]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  549.085610][ T8033] RIP: 0033:0x7fb700fd30b9
[  549.090102][ T8033] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  549.110059][ T8033] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  549.119262][ T8033] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  549.127411][ T8033] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  549.135646][ T8033] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  549.143791][ T8033] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  549.151949][ T8033] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  549.160208][ T8033]  </TASK>
[  549.165081][ T8033] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  549.228669][ T8034] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  549.238975][ T8034] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  549.248335][ T8034] CPU: 1 PID: 8034 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  549.259131][ T8034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  549.269934][ T8034] Call Trace:
[  549.273220][ T8034]  <TASK>
[  549.276195][ T8034]  dump_stack_lvl+0x125/0x1b0
[  549.280885][ T8034]  sysfs_warn_dup+0x7f/0xa0
[  549.285501][ T8034]  sysfs_create_dir_ns+0x249/0x2b0
[  549.290721][ T8034]  ? sysfs_create_mount_point+0xb0/0xb0
[  549.296484][ T8034]  ? spin_bug+0x1d0/0x1d0
[  549.300835][ T8034]  ? net_namespace+0x12/0x40
[  549.305442][ T8034]  ? device_namespace+0x8d/0xc0
[  549.310401][ T8034]  kobject_add_internal+0x2c8/0x970
[  549.315620][ T8034]  kobject_add+0x16f/0x240
[  549.320136][ T8034]  ? kset_create_and_add+0x190/0x190
[  549.325519][ T8034]  ? do_raw_spin_unlock+0x173/0x230
[  549.331104][ T8034]  ? kobject_put+0xbe/0x440
[  549.335928][ T8034]  ? device_add+0xc35/0x1aa0
[  549.340624][ T8034]  device_add+0x289/0x1aa0
[  549.345244][ T8034]  ? device_initialize+0x510/0x510
[  549.350534][ T8034]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  549.358025][ T8034]  ? __init_waitqueue_head+0xca/0x150
[  549.364173][ T8034]  netdev_register_kobject+0x183/0x3f0
[  549.370380][ T8034]  register_netdevice+0xbe6/0x14b0
[  549.377440][ T8034]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  549.384852][ T8034]  ? validate_linkmsg+0x6fc/0x9c0
[  549.390686][ T8034]  br_dev_newlink+0x27/0x110
[  549.395297][ T8034]  ? br_changelink+0x1760/0x1760
[  549.400342][ T8034]  __rtnl_newlink+0x1173/0x1930
[  549.405561][ T8034]  ? rtnl_link_unregister+0x260/0x260
[  549.411151][ T8034]  rtnl_newlink+0x67/0xa0
[  549.415750][ T8034]  ? __rtnl_newlink+0x1930/0x1930
[  549.421049][ T8034]  rtnetlink_rcv_msg+0x3c7/0xe00
[  549.426099][ T8034]  ? rtnl_fill_vf+0x4a0/0x4a0
[  549.430825][ T8034]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  549.437213][ T8034]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  549.443489][ T8034]  netlink_rcv_skb+0x16b/0x440
[  549.448395][ T8034]  ? rtnl_fill_vf+0x4a0/0x4a0
[  549.453539][ T8034]  ? netlink_ack+0x1380/0x1380
[  549.458313][ T8034]  ? lock_sync+0x190/0x190
[  549.462754][ T8034]  ? netlink_deliver_tap+0x1a0/0xd00
[  549.468421][ T8034]  ? _copy_from_iter+0x2c1/0x10f0
[  549.473893][ T8034]  netlink_unicast+0x53b/0x810
[  549.478941][ T8034]  ? netlink_attachskb+0x880/0x880
[  549.484218][ T8034]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  549.490815][ T8034]  ? __phys_addr_symbol+0x30/0x70
[  549.496130][ T8034]  ? __check_object_size+0x323/0x730
[  549.502480][ T8034]  netlink_sendmsg+0x93c/0xe40
[  549.507453][ T8034]  ? netlink_unicast+0x810/0x810
[  549.512866][ T8034]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  549.518558][ T8034]  ? netlink_unicast+0x810/0x810
[  549.523708][ T8034]  __sock_sendmsg+0xd5/0x180
[  549.528601][ T8034]  ____sys_sendmsg+0x6ac/0x940
[  549.533897][ T8034]  ? copy_msghdr_from_user+0x10b/0x160
[  549.539477][ T8034]  ? kernel_sendmsg+0x50/0x50
[  549.544341][ T8034]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  549.550625][ T8034]  ___sys_sendmsg+0x135/0x1d0
[  549.556019][ T8034]  ? do_recvmmsg+0x740/0x740
[  549.560619][ T8034]  ? find_held_lock+0x2d/0x110
[  549.567079][ T8034]  ? preempt_count_sub+0x160/0x160
[  549.572735][ T8034]  ? __fget_light+0x1fc/0x260
[  549.577783][ T8034]  __sys_sendmsg+0x117/0x1e0
[  549.582393][ T8034]  ? __sys_sendmsg_sock+0x30/0x30
[  549.587447][ T8034]  ? syscall_enter_from_user_mode+0x7f/0x120
[  549.593618][ T8034]  do_syscall_64+0x40/0x110
[  549.598324][ T8034]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  549.604578][ T8034] RIP: 0033:0x7fb700fd30b9
[  549.609532][ T8034] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  549.630291][ T8034] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  549.639159][ T8034] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  549.647236][ T8034] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  549.656541][ T8034] RBP: 0000000000085d46 R08: 0000000000000000 R09: 0000000000000006
[  549.664701][ T8034] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  549.672794][ T8034] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  549.680978][ T8034]  </TASK>
[  549.689039][ T8034] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  549.745502][ T8034] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  549.755395][ T8034] CPU: 0 PID: 8034 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  549.766207][ T8034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  549.776793][ T8034] Call Trace:
[  549.780445][ T8034]  <TASK>
[  549.783479][ T8034]  dump_stack_lvl+0x125/0x1b0
[  549.788491][ T8034]  sysfs_warn_dup+0x7f/0xa0
[  549.793322][ T8034]  sysfs_create_dir_ns+0x249/0x2b0
[  549.798545][ T8034]  ? sysfs_create_mount_point+0xb0/0xb0
[  549.804371][ T8034]  ? spin_bug+0x1d0/0x1d0
[  549.809270][ T8034]  ? net_namespace+0x12/0x40
[  549.815022][ T8034]  ? device_namespace+0x8d/0xc0
[  549.820883][ T8034]  kobject_add_internal+0x2c8/0x970
[  549.826128][ T8034]  kobject_add+0x16f/0x240
[  549.830736][ T8034]  ? kset_create_and_add+0x190/0x190
[  549.836290][ T8034]  ? do_raw_spin_unlock+0x173/0x230
[  549.841953][ T8034]  ? kobject_put+0xbe/0x440
[  549.846756][ T8034]  ? device_add+0xc35/0x1aa0
[  549.851986][ T8034]  device_add+0x289/0x1aa0
[  549.856776][ T8034]  ? device_initialize+0x510/0x510
[  549.862171][ T8034]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  549.869086][ T8034]  ? __init_waitqueue_head+0xca/0x150
[  549.874756][ T8034]  netdev_register_kobject+0x183/0x3f0
[  549.880604][ T8034]  register_netdevice+0xbe6/0x14b0
[  549.886628][ T8034]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  549.893687][ T8034]  ? validate_linkmsg+0x6fc/0x9c0
[  549.898825][ T8034]  br_dev_newlink+0x27/0x110
[  549.903438][ T8034]  ? br_changelink+0x1760/0x1760
[  549.909002][ T8034]  __rtnl_newlink+0x1173/0x1930
[  549.913983][ T8034]  ? rtnl_link_unregister+0x260/0x260
[  549.919491][ T8034]  rtnl_newlink+0x67/0xa0
[  549.923958][ T8034]  ? __rtnl_newlink+0x1930/0x1930
[  549.929215][ T8034]  rtnetlink_rcv_msg+0x3c7/0xe00
[  549.934528][ T8034]  ? rtnl_fill_vf+0x4a0/0x4a0
[  549.939391][ T8034]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  549.945475][ T8034]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  549.952551][ T8034]  netlink_rcv_skb+0x16b/0x440
[  549.957851][ T8034]  ? rtnl_fill_vf+0x4a0/0x4a0
[  549.962686][ T8034]  ? netlink_ack+0x1380/0x1380
[  549.967608][ T8034]  ? lock_sync+0x190/0x190
[  549.972387][ T8034]  ? netlink_deliver_tap+0x1a0/0xd00
[  549.978119][ T8034]  ? _copy_from_iter+0x2c1/0x10f0
[  549.983877][ T8034]  netlink_unicast+0x53b/0x810
[  549.989031][ T8034]  ? netlink_attachskb+0x880/0x880
[  549.994525][ T8034]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  550.002446][ T8034]  ? __phys_addr_symbol+0x30/0x70
[  550.008090][ T8034]  ? __check_object_size+0x323/0x730
[  550.013686][ T8034]  netlink_sendmsg+0x93c/0xe40
[  550.018654][ T8034]  ? netlink_unicast+0x810/0x810
[  550.023996][ T8034]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  550.029387][ T8034]  ? netlink_unicast+0x810/0x810
[  550.034509][ T8034]  __sock_sendmsg+0xd5/0x180
[  550.039152][ T8034]  ____sys_sendmsg+0x6ac/0x940
[  550.044439][ T8034]  ? copy_msghdr_from_user+0x10b/0x160
[  550.050331][ T8034]  ? kernel_sendmsg+0x50/0x50
[  550.055272][ T8034]  ___sys_sendmsg+0x135/0x1d0
[  550.060238][ T8034]  ? do_recvmmsg+0x740/0x740
[  550.064918][ T8034]  ? find_held_lock+0x2d/0x110
[  550.069885][ T8034]  ? preempt_count_sub+0x160/0x160
[  550.075186][ T8034]  ? __fget_light+0x1fc/0x260
[  550.079876][ T8034]  __sys_sendmsg+0x117/0x1e0
[  550.084835][ T8034]  ? __sys_sendmsg_sock+0x30/0x30
[  550.089876][ T8034]  ? syscall_enter_from_user_mode+0x7f/0x120
[  550.095891][ T8034]  do_syscall_64+0x40/0x110
[  550.100527][ T8034]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  550.106724][ T8034] RIP: 0033:0x7fb700fd30b9
[  550.111406][ T8034] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  550.132411][ T8034] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  550.140844][ T8034] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  550.148899][ T8034] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  550.157521][ T8034] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  550.165501][ T8034] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  550.173729][ T8034] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  550.182072][ T8034]  </TASK>
[  550.186059][ T8034] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  550.231511][ T8035] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  550.242137][ T8035] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  550.251420][ T8035] CPU: 0 PID: 8035 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  550.261690][ T8035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  550.271959][ T8035] Call Trace:
[  550.275338][ T8035]  <TASK>
[  550.278381][ T8035]  dump_stack_lvl+0x125/0x1b0
[  550.283069][ T8035]  sysfs_warn_dup+0x7f/0xa0
[  550.287774][ T8035]  sysfs_create_dir_ns+0x249/0x2b0
[  550.292916][ T8035]  ? sysfs_create_mount_point+0xb0/0xb0
[  550.298688][ T8035]  ? spin_bug+0x1d0/0x1d0
[  550.303062][ T8035]  ? net_namespace+0x12/0x40
[  550.307742][ T8035]  ? device_namespace+0x8d/0xc0
[  550.312636][ T8035]  kobject_add_internal+0x2c8/0x970
[  550.317955][ T8035]  kobject_add+0x16f/0x240
[  550.322845][ T8035]  ? kset_create_and_add+0x190/0x190
[  550.328234][ T8035]  ? do_raw_spin_unlock+0x173/0x230
[  550.333608][ T8035]  ? kobject_put+0xbe/0x440
[  550.338300][ T8035]  ? device_add+0xc35/0x1aa0
[  550.343065][ T8035]  device_add+0x289/0x1aa0
[  550.347694][ T8035]  ? device_initialize+0x510/0x510
[  550.353001][ T8035]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  550.360038][ T8035]  ? __init_waitqueue_head+0xca/0x150
[  550.365598][ T8035]  netdev_register_kobject+0x183/0x3f0
[  550.371717][ T8035]  register_netdevice+0xbe6/0x14b0
[  550.377142][ T8035]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  550.383173][ T8035]  ? validate_linkmsg+0x6fc/0x9c0
[  550.388394][ T8035]  br_dev_newlink+0x27/0x110
[  550.392994][ T8035]  ? br_changelink+0x1760/0x1760
[  550.397930][ T8035]  __rtnl_newlink+0x1173/0x1930
[  550.402792][ T8035]  ? rtnl_link_unregister+0x260/0x260
[  550.408292][ T8035]  rtnl_newlink+0x67/0xa0
[  550.412737][ T8035]  ? __rtnl_newlink+0x1930/0x1930
[  550.417880][ T8035]  rtnetlink_rcv_msg+0x3c7/0xe00
[  550.423080][ T8035]  ? rtnl_fill_vf+0x4a0/0x4a0
[  550.428362][ T8035]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  550.434630][ T8035]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  550.440650][ T8035]  netlink_rcv_skb+0x16b/0x440
[  550.445482][ T8035]  ? rtnl_fill_vf+0x4a0/0x4a0
[  550.450182][ T8035]  ? netlink_ack+0x1380/0x1380
[  550.455049][ T8035]  ? lock_sync+0x190/0x190
[  550.459683][ T8035]  ? netlink_deliver_tap+0x1a0/0xd00
[  550.465004][ T8035]  ? _copy_from_iter+0x2c1/0x10f0
[  550.470444][ T8035]  netlink_unicast+0x53b/0x810
[  550.475615][ T8035]  ? netlink_attachskb+0x880/0x880
[  550.481279][ T8035]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  550.487311][ T8035]  ? __phys_addr_symbol+0x30/0x70
[  550.492360][ T8035]  ? __check_object_size+0x323/0x730
[  550.497772][ T8035]  netlink_sendmsg+0x93c/0xe40
[  550.502739][ T8035]  ? netlink_unicast+0x810/0x810
[  550.507784][ T8035]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  550.513155][ T8035]  ? netlink_unicast+0x810/0x810
[  550.518191][ T8035]  __sock_sendmsg+0xd5/0x180
[  550.522955][ T8035]  ____sys_sendmsg+0x6ac/0x940
[  550.527903][ T8035]  ? copy_msghdr_from_user+0x10b/0x160
[  550.533630][ T8035]  ? kernel_sendmsg+0x50/0x50
[  550.538487][ T8035]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  550.544657][ T8035]  ___sys_sendmsg+0x135/0x1d0
[  550.549517][ T8035]  ? do_recvmmsg+0x740/0x740
[  550.554297][ T8035]  ? find_held_lock+0x2d/0x110
[  550.559274][ T8035]  ? preempt_count_sub+0x160/0x160
[  550.564490][ T8035]  ? __fget_light+0x1fc/0x260
[  550.569361][ T8035]  __sys_sendmsg+0x117/0x1e0
[  550.574149][ T8035]  ? __sys_sendmsg_sock+0x30/0x30
[  550.579280][ T8035]  ? xfd_validate_state+0x5d/0x180
[  550.584525][ T8035]  ? syscall_enter_from_user_mode+0x7f/0x120
[  550.590698][ T8035]  do_syscall_64+0x40/0x110
[  550.595396][ T8035]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  550.601744][ T8035] RIP: 0033:0x7fb700fd30b9
[  550.606686][ T8035] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  550.627163][ T8035] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  550.635924][ T8035] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  550.644429][ T8035] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  550.652500][ T8035] RBP: 000000000008613f R08: 0000000000000000 R09: 0000000000000006
[  550.660744][ T8035] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  550.669167][ T8035] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  550.677505][ T8035]  </TASK>
[  550.682561][ T8035] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  550.745969][ T8035] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  550.755634][ T8035] CPU: 0 PID: 8035 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  550.767573][ T8035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  550.778161][ T8035] Call Trace:
[  550.781753][ T8035]  <TASK>
[  550.784690][ T8035]  dump_stack_lvl+0x125/0x1b0
[  550.789467][ T8035]  sysfs_warn_dup+0x7f/0xa0
[  550.794497][ T8035]  sysfs_create_dir_ns+0x249/0x2b0
[  550.799693][ T8035]  ? sysfs_create_mount_point+0xb0/0xb0
[  550.805518][ T8035]  ? spin_bug+0x1d0/0x1d0
[  550.809953][ T8035]  ? net_namespace+0x12/0x40
[  550.814814][ T8035]  ? device_namespace+0x8d/0xc0
[  550.819785][ T8035]  kobject_add_internal+0x2c8/0x970
[  550.825274][ T8035]  kobject_add+0x16f/0x240
[  550.830771][ T8035]  ? kset_create_and_add+0x190/0x190
[  550.836592][ T8035]  ? do_raw_spin_unlock+0x173/0x230
[  550.842151][ T8035]  ? kobject_put+0xbe/0x440
[  550.846947][ T8035]  ? device_add+0xc35/0x1aa0
[  550.851659][ T8035]  device_add+0x289/0x1aa0
[  550.856194][ T8035]  ? device_initialize+0x510/0x510
[  550.861573][ T8035]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  550.868626][ T8035]  ? __init_waitqueue_head+0xca/0x150
[  550.874204][ T8035]  netdev_register_kobject+0x183/0x3f0
[  550.879845][ T8035]  register_netdevice+0xbe6/0x14b0
[  550.885163][ T8035]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  550.891055][ T8035]  ? validate_linkmsg+0x6fc/0x9c0
[  550.896084][ T8035]  br_dev_newlink+0x27/0x110
[  550.900698][ T8035]  ? br_changelink+0x1760/0x1760
[  550.905673][ T8035]  __rtnl_newlink+0x1173/0x1930
[  550.910724][ T8035]  ? rtnl_link_unregister+0x260/0x260
[  550.916395][ T8035]  rtnl_newlink+0x67/0xa0
[  550.920842][ T8035]  ? __rtnl_newlink+0x1930/0x1930
[  550.926094][ T8035]  rtnetlink_rcv_msg+0x3c7/0xe00
[  550.931263][ T8035]  ? rtnl_fill_vf+0x4a0/0x4a0
[  550.936417][ T8035]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  550.942589][ T8035]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  550.948838][ T8035]  netlink_rcv_skb+0x16b/0x440
[  550.954149][ T8035]  ? rtnl_fill_vf+0x4a0/0x4a0
[  550.959338][ T8035]  ? netlink_ack+0x1380/0x1380
[  550.964461][ T8035]  ? lock_sync+0x190/0x190
[  550.968975][ T8035]  ? netlink_deliver_tap+0x1a0/0xd00
[  550.974290][ T8035]  ? _copy_from_iter+0x2c1/0x10f0
[  550.979599][ T8035]  netlink_unicast+0x53b/0x810
[  550.984526][ T8035]  ? netlink_attachskb+0x880/0x880
[  550.989663][ T8035]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  550.995663][ T8035]  ? __phys_addr_symbol+0x30/0x70
[  551.000782][ T8035]  ? __check_object_size+0x323/0x730
[  551.006262][ T8035]  netlink_sendmsg+0x93c/0xe40
[  551.011065][ T8035]  ? netlink_unicast+0x810/0x810
[  551.016190][ T8035]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  551.021845][ T8035]  ? netlink_unicast+0x810/0x810
[  551.026893][ T8035]  __sock_sendmsg+0xd5/0x180
[  551.031624][ T8035]  ____sys_sendmsg+0x6ac/0x940
[  551.036838][ T8035]  ? copy_msghdr_from_user+0x10b/0x160
[  551.042626][ T8035]  ? kernel_sendmsg+0x50/0x50
[  551.047597][ T8035]  ___sys_sendmsg+0x135/0x1d0
[  551.052631][ T8035]  ? do_recvmmsg+0x740/0x740
[  551.057416][ T8035]  ? find_held_lock+0x2d/0x110
[  551.062604][ T8035]  ? preempt_count_sub+0x160/0x160
[  551.067912][ T8035]  ? __fget_light+0x1fc/0x260
[  551.072589][ T8035]  __sys_sendmsg+0x117/0x1e0
[  551.077182][ T8035]  ? __sys_sendmsg_sock+0x30/0x30
[  551.082338][ T8035]  ? syscall_enter_from_user_mode+0x7f/0x120
[  551.088320][ T8035]  do_syscall_64+0x40/0x110
[  551.092820][ T8035]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  551.098799][ T8035] RIP: 0033:0x7fb700fd30b9
[  551.103404][ T8035] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  551.123880][ T8035] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  551.132727][ T8035] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  551.140866][ T8035] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  551.148942][ T8035] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  551.157280][ T8035] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  551.165244][ T8035] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  551.173749][ T8035]  </TASK>
[  551.178337][ T8035] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  551.230439][ T8036] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  551.240989][ T8036] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  551.250325][ T8036] CPU: 0 PID: 8036 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  551.260440][ T8036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  551.270666][ T8036] Call Trace:
[  551.274220][ T8036]  <TASK>
[  551.277399][ T8036]  dump_stack_lvl+0x125/0x1b0
[  551.282258][ T8036]  sysfs_warn_dup+0x7f/0xa0
[  551.286781][ T8036]  sysfs_create_dir_ns+0x249/0x2b0
[  551.291959][ T8036]  ? sysfs_create_mount_point+0xb0/0xb0
[  551.297704][ T8036]  ? spin_bug+0x1d0/0x1d0
[  551.302410][ T8036]  ? net_namespace+0x12/0x40
[  551.307181][ T8036]  ? device_namespace+0x8d/0xc0
[  551.312245][ T8036]  kobject_add_internal+0x2c8/0x970
[  551.317903][ T8036]  kobject_add+0x16f/0x240
[  551.322336][ T8036]  ? kset_create_and_add+0x190/0x190
[  551.327813][ T8036]  ? do_raw_spin_unlock+0x173/0x230
[  551.333121][ T8036]  ? kobject_put+0xbe/0x440
[  551.338124][ T8036]  ? device_add+0xc35/0x1aa0
[  551.343121][ T8036]  device_add+0x289/0x1aa0
[  551.347639][ T8036]  ? device_initialize+0x510/0x510
[  551.352854][ T8036]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  551.359985][ T8036]  ? __init_waitqueue_head+0xca/0x150
[  551.365379][ T8036]  netdev_register_kobject+0x183/0x3f0
[  551.370855][ T8036]  register_netdevice+0xbe6/0x14b0
[  551.376251][ T8036]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  551.382156][ T8036]  ? validate_linkmsg+0x6fc/0x9c0
[  551.387191][ T8036]  br_dev_newlink+0x27/0x110
[  551.391960][ T8036]  ? br_changelink+0x1760/0x1760
[  551.396902][ T8036]  __rtnl_newlink+0x1173/0x1930
[  551.401773][ T8036]  ? rtnl_link_unregister+0x260/0x260
[  551.407359][ T8036]  rtnl_newlink+0x67/0xa0
[  551.411707][ T8036]  ? __rtnl_newlink+0x1930/0x1930
[  551.417602][ T8036]  rtnetlink_rcv_msg+0x3c7/0xe00
[  551.422583][ T8036]  ? rtnl_fill_vf+0x4a0/0x4a0
[  551.427359][ T8036]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  551.433458][ T8036]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  551.439647][ T8036]  netlink_rcv_skb+0x16b/0x440
[  551.444696][ T8036]  ? rtnl_fill_vf+0x4a0/0x4a0
[  551.449384][ T8036]  ? netlink_ack+0x1380/0x1380
[  551.454431][ T8036]  ? lock_sync+0x190/0x190
[  551.459047][ T8036]  ? netlink_deliver_tap+0x1a0/0xd00
[  551.464432][ T8036]  ? _copy_from_iter+0x2c1/0x10f0
[  551.469559][ T8036]  netlink_unicast+0x53b/0x810
[  551.474511][ T8036]  ? netlink_attachskb+0x880/0x880
[  551.479817][ T8036]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  551.485898][ T8036]  ? __phys_addr_symbol+0x30/0x70
[  551.491194][ T8036]  ? __check_object_size+0x323/0x730
[  551.496665][ T8036]  netlink_sendmsg+0x93c/0xe40
[  551.501663][ T8036]  ? netlink_unicast+0x810/0x810
[  551.506798][ T8036]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  551.512361][ T8036]  ? netlink_unicast+0x810/0x810
[  551.517576][ T8036]  __sock_sendmsg+0xd5/0x180
[  551.523046][ T8036]  ____sys_sendmsg+0x6ac/0x940
[  551.528351][ T8036]  ? copy_msghdr_from_user+0x10b/0x160
[  551.534429][ T8036]  ? kernel_sendmsg+0x50/0x50
[  551.539115][ T8036]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  551.545198][ T8036]  ___sys_sendmsg+0x135/0x1d0
[  551.550350][ T8036]  ? do_recvmmsg+0x740/0x740
[  551.555261][ T8036]  ? find_held_lock+0x2d/0x110
[  551.560335][ T8036]  ? preempt_count_sub+0x160/0x160
[  551.565740][ T8036]  ? __fget_light+0x1fc/0x260
[  551.570467][ T8036]  __sys_sendmsg+0x117/0x1e0
[  551.575184][ T8036]  ? __sys_sendmsg_sock+0x30/0x30
[  551.580329][ T8036]  ? xfd_validate_state+0x5d/0x180
[  551.585834][ T8036]  ? syscall_enter_from_user_mode+0x7f/0x120
[  551.592181][ T8036]  do_syscall_64+0x40/0x110
[  551.596909][ T8036]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  551.603185][ T8036] RIP: 0033:0x7fb700fd30b9
[  551.608056][ T8036] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  551.628712][ T8036] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  551.637248][ T8036] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  551.645392][ T8036] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  551.653754][ T8036] RBP: 000000000008652a R08: 0000000000000000 R09: 0000000000000006
[  551.661929][ T8036] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  551.670491][ T8036] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  551.679399][ T8036]  </TASK>
[  551.685290][ T8036] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  551.746129][ T8036] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  551.755416][ T8036] CPU: 0 PID: 8036 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  551.765769][ T8036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  551.776182][ T8036] Call Trace:
[  551.779991][ T8036]  <TASK>
[  551.783108][ T8036]  dump_stack_lvl+0x125/0x1b0
[  551.787912][ T8036]  sysfs_warn_dup+0x7f/0xa0
[  551.792855][ T8036]  sysfs_create_dir_ns+0x249/0x2b0
[  551.797981][ T8036]  ? sysfs_create_mount_point+0xb0/0xb0
[  551.803823][ T8036]  ? spin_bug+0x1d0/0x1d0
[  551.809217][ T8036]  ? net_namespace+0x12/0x40
[  551.814009][ T8036]  ? device_namespace+0x8d/0xc0
[  551.819163][ T8036]  kobject_add_internal+0x2c8/0x970
[  551.824699][ T8036]  kobject_add+0x16f/0x240
[  551.829687][ T8036]  ? kset_create_and_add+0x190/0x190
[  551.835160][ T8036]  ? do_raw_spin_unlock+0x173/0x230
[  551.840374][ T8036]  ? kobject_put+0xbe/0x440
[  551.845157][ T8036]  ? device_add+0xc35/0x1aa0
[  551.849754][ T8036]  device_add+0x289/0x1aa0
[  551.854352][ T8036]  ? device_initialize+0x510/0x510
[  551.859562][ T8036]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  551.866508][ T8036]  ? __init_waitqueue_head+0xca/0x150
[  551.872005][ T8036]  netdev_register_kobject+0x183/0x3f0
[  551.877762][ T8036]  register_netdevice+0xbe6/0x14b0
[  551.882896][ T8036]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  551.888819][ T8036]  ? validate_linkmsg+0x6fc/0x9c0
[  551.893977][ T8036]  br_dev_newlink+0x27/0x110
[  551.898683][ T8036]  ? br_changelink+0x1760/0x1760
[  551.903727][ T8036]  __rtnl_newlink+0x1173/0x1930
[  551.908874][ T8036]  ? rtnl_link_unregister+0x260/0x260
[  551.914366][ T8036]  rtnl_newlink+0x67/0xa0
[  551.918821][ T8036]  ? __rtnl_newlink+0x1930/0x1930
[  551.923942][ T8036]  rtnetlink_rcv_msg+0x3c7/0xe00
[  551.929154][ T8036]  ? rtnl_fill_vf+0x4a0/0x4a0
[  551.934043][ T8036]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  551.940500][ T8036]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  551.946947][ T8036]  netlink_rcv_skb+0x16b/0x440
[  551.951820][ T8036]  ? rtnl_fill_vf+0x4a0/0x4a0
[  551.956509][ T8036]  ? netlink_ack+0x1380/0x1380
[  551.961283][ T8036]  ? lock_sync+0x190/0x190
[  551.965743][ T8036]  ? netlink_deliver_tap+0x1a0/0xd00
[  551.971236][ T8036]  ? _copy_from_iter+0x2c1/0x10f0
[  551.976724][ T8036]  netlink_unicast+0x53b/0x810
[  551.981693][ T8036]  ? netlink_attachskb+0x880/0x880
[  551.987683][ T8036]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  551.993962][ T8036]  ? __phys_addr_symbol+0x30/0x70
[  551.999108][ T8036]  ? __check_object_size+0x323/0x730
[  552.004468][ T8036]  netlink_sendmsg+0x93c/0xe40
[  552.009266][ T8036]  ? netlink_unicast+0x810/0x810
[  552.014279][ T8036]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  552.020185][ T8036]  ? netlink_unicast+0x810/0x810
[  552.025161][ T8036]  __sock_sendmsg+0xd5/0x180
[  552.030093][ T8036]  ____sys_sendmsg+0x6ac/0x940
[  552.034906][ T8036]  ? copy_msghdr_from_user+0x10b/0x160
[  552.040552][ T8036]  ? kernel_sendmsg+0x50/0x50
[  552.045500][ T8036]  ? hlock_class+0x4e/0x130
[  552.050276][ T8036]  ? __lock_acquire+0x14e0/0x3b10
[  552.055593][ T8036]  ___sys_sendmsg+0x135/0x1d0
[  552.060893][ T8036]  ? do_recvmmsg+0x740/0x740
[  552.065668][ T8036]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  552.072301][ T8036]  ? find_held_lock+0x2d/0x110
[  552.077362][ T8036]  ? __fget_light+0x1fc/0x260
[  552.082636][ T8036]  __sys_sendmsg+0x117/0x1e0
[  552.087506][ T8036]  ? __sys_sendmsg_sock+0x30/0x30
[  552.092583][ T8036]  ? xfd_validate_state+0x5d/0x180
[  552.097984][ T8036]  ? syscall_enter_from_user_mode+0x7f/0x120
[  552.104257][ T8036]  do_syscall_64+0x40/0x110
[  552.109343][ T8036]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  552.115340][ T8036] RIP: 0033:0x7fb700fd30b9
[  552.119866][ T8036] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  552.140464][ T8036] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  552.149088][ T8036] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  552.157416][ T8036] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  552.165747][ T8036] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  552.174414][ T8036] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  552.182835][ T8036] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  552.190827][ T8036]  </TASK>
[  552.195686][ T8036] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  552.261057][ T8037] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  552.271817][ T8037] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  552.281533][ T8037] CPU: 0 PID: 8037 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  552.291690][ T8037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  552.301924][ T8037] Call Trace:
[  552.305199][ T8037]  <TASK>
[  552.308133][ T8037]  dump_stack_lvl+0x125/0x1b0
[  552.312908][ T8037]  sysfs_warn_dup+0x7f/0xa0
[  552.317531][ T8037]  sysfs_create_dir_ns+0x249/0x2b0
[  552.322762][ T8037]  ? sysfs_create_mount_point+0xb0/0xb0
[  552.328342][ T8037]  ? spin_bug+0x1d0/0x1d0
[  552.332720][ T8037]  ? net_namespace+0x12/0x40
[  552.337431][ T8037]  ? device_namespace+0x8d/0xc0
[  552.342328][ T8037]  kobject_add_internal+0x2c8/0x970
[  552.347726][ T8037]  kobject_add+0x16f/0x240
[  552.352275][ T8037]  ? kset_create_and_add+0x190/0x190
[  552.357928][ T8037]  ? do_raw_spin_unlock+0x173/0x230
[  552.363661][ T8037]  ? kobject_put+0xbe/0x440
[  552.368413][ T8037]  ? device_add+0xc35/0x1aa0
[  552.373220][ T8037]  device_add+0x289/0x1aa0
[  552.377651][ T8037]  ? device_initialize+0x510/0x510
[  552.382785][ T8037]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  552.389946][ T8037]  ? __init_waitqueue_head+0xca/0x150
[  552.395513][ T8037]  netdev_register_kobject+0x183/0x3f0
[  552.401016][ T8037]  register_netdevice+0xbe6/0x14b0
[  552.406324][ T8037]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  552.412229][ T8037]  ? validate_linkmsg+0x6fc/0x9c0
[  552.417441][ T8037]  br_dev_newlink+0x27/0x110
[  552.422113][ T8037]  ? br_changelink+0x1760/0x1760
[  552.427311][ T8037]  __rtnl_newlink+0x1173/0x1930
[  552.432211][ T8037]  ? rtnl_link_unregister+0x260/0x260
[  552.437638][ T8037]  rtnl_newlink+0x67/0xa0
[  552.442109][ T8037]  ? __rtnl_newlink+0x1930/0x1930
[  552.447248][ T8037]  rtnetlink_rcv_msg+0x3c7/0xe00
[  552.452215][ T8037]  ? rtnl_fill_vf+0x4a0/0x4a0
[  552.457027][ T8037]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  552.463482][ T8037]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  552.469678][ T8037]  netlink_rcv_skb+0x16b/0x440
[  552.474461][ T8037]  ? rtnl_fill_vf+0x4a0/0x4a0
[  552.479261][ T8037]  ? netlink_ack+0x1380/0x1380
[  552.484076][ T8037]  ? lock_sync+0x190/0x190
[  552.488704][ T8037]  ? netlink_deliver_tap+0x1a0/0xd00
[  552.494702][ T8037]  ? _copy_from_iter+0x2c1/0x10f0
[  552.499963][ T8037]  netlink_unicast+0x53b/0x810
[  552.504847][ T8037]  ? netlink_attachskb+0x880/0x880
[  552.510162][ T8037]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  552.516850][ T8037]  ? __phys_addr_symbol+0x30/0x70
[  552.522227][ T8037]  ? __check_object_size+0x323/0x730
[  552.527797][ T8037]  netlink_sendmsg+0x93c/0xe40
[  552.532838][ T8037]  ? netlink_unicast+0x810/0x810
[  552.537879][ T8037]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  552.543309][ T8037]  ? netlink_unicast+0x810/0x810
[  552.548557][ T8037]  __sock_sendmsg+0xd5/0x180
[  552.553149][ T8037]  ____sys_sendmsg+0x6ac/0x940
[  552.557912][ T8037]  ? copy_msghdr_from_user+0x10b/0x160
[  552.563483][ T8037]  ? kernel_sendmsg+0x50/0x50
[  552.568439][ T8037]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  552.574704][ T8037]  ___sys_sendmsg+0x135/0x1d0
[  552.579662][ T8037]  ? do_recvmmsg+0x740/0x740
[  552.584259][ T8037]  ? find_held_lock+0x2d/0x110
[  552.589329][ T8037]  ? preempt_count_sub+0x160/0x160
[  552.594650][ T8037]  ? __fget_light+0x1fc/0x260
[  552.599687][ T8037]  __sys_sendmsg+0x117/0x1e0
[  552.604642][ T8037]  ? __sys_sendmsg_sock+0x30/0x30
[  552.610130][ T8037]  ? syscall_enter_from_user_mode+0x7f/0x120
[  552.616319][ T8037]  do_syscall_64+0x40/0x110
[  552.621002][ T8037]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  552.626940][ T8037] RIP: 0033:0x7fb700fd30b9
[  552.631535][ T8037] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  552.651860][ T8037] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  552.660721][ T8037] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  552.668960][ T8037] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  552.677057][ T8037] RBP: 0000000000086911 R08: 0000000000000000 R09: 0000000000000006
[  552.685127][ T8037] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  552.693470][ T8037] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  552.701686][ T8037]  </TASK>
[  552.705207][ T8037] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  552.746264][ T8037] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  552.756380][ T8037] CPU: 0 PID: 8037 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  552.767255][ T8037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  552.778290][ T8037] Call Trace:
[  552.781663][ T8037]  <TASK>
[  552.784850][ T8037]  dump_stack_lvl+0x125/0x1b0
[  552.789622][ T8037]  sysfs_warn_dup+0x7f/0xa0
[  552.794221][ T8037]  sysfs_create_dir_ns+0x249/0x2b0
[  552.799534][ T8037]  ? sysfs_create_mount_point+0xb0/0xb0
[  552.805534][ T8037]  ? spin_bug+0x1d0/0x1d0
[  552.809876][ T8037]  ? net_namespace+0x12/0x40
[  552.814560][ T8037]  ? device_namespace+0x8d/0xc0
[  552.819511][ T8037]  kobject_add_internal+0x2c8/0x970
[  552.825515][ T8037]  kobject_add+0x16f/0x240
[  552.830244][ T8037]  ? kset_create_and_add+0x190/0x190
[  552.835896][ T8037]  ? do_raw_spin_unlock+0x173/0x230
[  552.841901][ T8037]  ? kobject_put+0xbe/0x440
[  552.846524][ T8037]  ? device_add+0xc35/0x1aa0
[  552.851547][ T8037]  device_add+0x289/0x1aa0
[  552.856239][ T8037]  ? device_initialize+0x510/0x510
[  552.862071][ T8037]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  552.869480][ T8037]  ? __init_waitqueue_head+0xca/0x150
[  552.875663][ T8037]  netdev_register_kobject+0x183/0x3f0
[  552.882310][ T8037]  register_netdevice+0xbe6/0x14b0
[  552.888105][ T8037]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  552.894212][ T8037]  ? validate_linkmsg+0x6fc/0x9c0
[  552.899423][ T8037]  br_dev_newlink+0x27/0x110
[  552.904053][ T8037]  ? br_changelink+0x1760/0x1760
[  552.910066][ T8037]  __rtnl_newlink+0x1173/0x1930
[  552.916979][ T8037]  ? rtnl_link_unregister+0x260/0x260
[  552.922496][ T8037]  rtnl_newlink+0x67/0xa0
[  552.927170][ T8037]  ? __rtnl_newlink+0x1930/0x1930
[  552.932481][ T8037]  rtnetlink_rcv_msg+0x3c7/0xe00
[  552.938315][ T8037]  ? rtnl_fill_vf+0x4a0/0x4a0
[  552.943500][ T8037]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  552.949616][ T8037]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  552.955726][ T8037]  netlink_rcv_skb+0x16b/0x440
[  552.960947][ T8037]  ? rtnl_fill_vf+0x4a0/0x4a0
[  552.965853][ T8037]  ? netlink_ack+0x1380/0x1380
[  552.971250][ T8037]  ? lock_sync+0x190/0x190
[  552.975897][ T8037]  ? netlink_deliver_tap+0x1a0/0xd00
[  552.981282][ T8037]  ? _copy_from_iter+0x2c1/0x10f0
[  552.986422][ T8037]  netlink_unicast+0x53b/0x810
[  552.991292][ T8037]  ? netlink_attachskb+0x880/0x880
[  552.996757][ T8037]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  553.002757][ T8037]  ? __phys_addr_symbol+0x30/0x70
[  553.008159][ T8037]  ? __check_object_size+0x323/0x730
[  553.014334][ T8037]  netlink_sendmsg+0x93c/0xe40
[  553.019352][ T8037]  ? netlink_unicast+0x810/0x810
[  553.024493][ T8037]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  553.029895][ T8037]  ? netlink_unicast+0x810/0x810
[  553.034964][ T8037]  __sock_sendmsg+0xd5/0x180
[  553.039762][ T8037]  ____sys_sendmsg+0x6ac/0x940
[  553.044723][ T8037]  ? copy_msghdr_from_user+0x10b/0x160
[  553.050649][ T8037]  ? kernel_sendmsg+0x50/0x50
[  553.055427][ T8037]  ? hlock_class+0x4e/0x130
[  553.060214][ T8037]  ? __lock_acquire+0x14e0/0x3b10
[  553.065286][ T8037]  ___sys_sendmsg+0x135/0x1d0
[  553.070380][ T8037]  ? do_recvmmsg+0x740/0x740
[  553.075447][ T8037]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  553.081619][ T8037]  ? find_held_lock+0x2d/0x110
[  553.086602][ T8037]  ? __fget_light+0x1fc/0x260
[  553.091400][ T8037]  __sys_sendmsg+0x117/0x1e0
[  553.096131][ T8037]  ? __sys_sendmsg_sock+0x30/0x30
[  553.103404][ T8037]  ? __do_sys_rseq+0x750/0x750
[  553.108738][ T8037]  ? syscall_enter_from_user_mode+0x7f/0x120
[  553.115201][ T8037]  do_syscall_64+0x40/0x110
[  553.119915][ T8037]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  553.126191][ T8037] RIP: 0033:0x7fb700fd30b9
[  553.130889][ T8037] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  553.151164][ T8037] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  553.160211][ T8037] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  553.169011][ T8037] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  553.177726][ T8037] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  553.185960][ T8037] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  553.194290][ T8037] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  553.202556][ T8037]  </TASK>
[  553.206476][ T8037] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  553.260522][ T8038] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  553.271917][ T8038] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  553.281480][ T8038] CPU: 0 PID: 8038 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  553.292200][ T8038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  553.302621][ T8038] Call Trace:
[  553.306542][ T8038]  <TASK>
[  553.310782][ T8038]  dump_stack_lvl+0x125/0x1b0
[  553.316976][ T8038]  sysfs_warn_dup+0x7f/0xa0
[  553.325410][ T8038]  sysfs_create_dir_ns+0x249/0x2b0
[  553.331316][ T8038]  ? sysfs_create_mount_point+0xb0/0xb0
[  553.337967][ T8038]  ? spin_bug+0x1d0/0x1d0
[  553.342839][ T8038]  ? net_namespace+0x12/0x40
[  553.348412][ T8038]  ? device_namespace+0x8d/0xc0
[  553.353975][ T8038]  kobject_add_internal+0x2c8/0x970
[  553.359201][ T8038]  kobject_add+0x16f/0x240
[  553.364527][ T8038]  ? kset_create_and_add+0x190/0x190
[  553.370290][ T8038]  ? do_raw_spin_unlock+0x173/0x230
[  553.376119][ T8038]  ? kobject_put+0xbe/0x440
[  553.380653][ T8038]  ? device_add+0xc35/0x1aa0
[  553.385883][ T8038]  device_add+0x289/0x1aa0
[  553.390568][ T8038]  ? device_initialize+0x510/0x510
[  553.395736][ T8038]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  553.403047][ T8038]  ? __init_waitqueue_head+0xca/0x150
[  553.408786][ T8038]  netdev_register_kobject+0x183/0x3f0
[  553.414341][ T8038]  register_netdevice+0xbe6/0x14b0
[  553.421169][ T8038]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  553.427193][ T8038]  ? validate_linkmsg+0x6fc/0x9c0
[  553.432523][ T8038]  br_dev_newlink+0x27/0x110
[  553.437288][ T8038]  ? br_changelink+0x1760/0x1760
[  553.442422][ T8038]  __rtnl_newlink+0x1173/0x1930
[  553.447841][ T8038]  ? rtnl_link_unregister+0x260/0x260
[  553.453519][ T8038]  rtnl_newlink+0x67/0xa0
[  553.458046][ T8038]  ? __rtnl_newlink+0x1930/0x1930
[  553.463854][ T8038]  rtnetlink_rcv_msg+0x3c7/0xe00
[  553.469162][ T8038]  ? rtnl_fill_vf+0x4a0/0x4a0
[  553.474222][ T8038]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  553.480602][ T8038]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  553.487253][ T8038]  netlink_rcv_skb+0x16b/0x440
[  553.493268][ T8038]  ? rtnl_fill_vf+0x4a0/0x4a0
[  553.498432][ T8038]  ? netlink_ack+0x1380/0x1380
[  553.503345][ T8038]  ? lock_sync+0x190/0x190
[  553.507876][ T8038]  ? netlink_deliver_tap+0x1a0/0xd00
[  553.514151][ T8038]  ? _copy_from_iter+0x2c1/0x10f0
[  553.519895][ T8038]  netlink_unicast+0x53b/0x810
[  553.524872][ T8038]  ? netlink_attachskb+0x880/0x880
[  553.530585][ T8038]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  553.536935][ T8038]  ? __phys_addr_symbol+0x30/0x70
[  553.542639][ T8038]  ? __check_object_size+0x323/0x730
[  553.548880][ T8038]  netlink_sendmsg+0x93c/0xe40
[  553.555507][ T8038]  ? netlink_unicast+0x810/0x810
[  553.560866][ T8038]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  553.566453][ T8038]  ? netlink_unicast+0x810/0x810
[  553.571792][ T8038]  __sock_sendmsg+0xd5/0x180
[  553.576656][ T8038]  ____sys_sendmsg+0x6ac/0x940
[  553.582037][ T8038]  ? copy_msghdr_from_user+0x10b/0x160
[  553.587593][ T8038]  ? kernel_sendmsg+0x50/0x50
[  553.592297][ T8038]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  553.598553][ T8038]  ___sys_sendmsg+0x135/0x1d0
[  553.603418][ T8038]  ? do_recvmmsg+0x740/0x740
[  553.608320][ T8038]  ? find_held_lock+0x2d/0x110
[  553.613199][ T8038]  ? preempt_count_sub+0x160/0x160
[  553.618687][ T8038]  ? __fget_light+0x1fc/0x260
[  553.623575][ T8038]  __sys_sendmsg+0x117/0x1e0
[  553.628318][ T8038]  ? __sys_sendmsg_sock+0x30/0x30
[  553.633477][ T8038]  ? xfd_validate_state+0x5d/0x180
[  553.639759][ T8038]  ? syscall_enter_from_user_mode+0x7f/0x120
[  553.646027][ T8038]  do_syscall_64+0x40/0x110
[  553.650563][ T8038]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  553.656579][ T8038] RIP: 0033:0x7fb700fd30b9
[  553.661182][ T8038] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  553.681326][ T8038] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  553.690099][ T8038] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  553.698170][ T8038] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  553.706513][ T8038] RBP: 0000000000086d18 R08: 0000000000000000 R09: 0000000000000006
[  553.715376][ T8038] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  553.723978][ T8038] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  553.732781][ T8038]  </TASK>
[  553.737137][ T8038] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  553.806024][ T8038] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  553.816607][ T8038] CPU: 0 PID: 8038 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  553.828002][ T8038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  553.838610][ T8038] Call Trace:
[  553.842168][ T8038]  <TASK>
[  553.845205][ T8038]  dump_stack_lvl+0x125/0x1b0
[  553.850275][ T8038]  sysfs_warn_dup+0x7f/0xa0
[  553.856911][ T8038]  sysfs_create_dir_ns+0x249/0x2b0
[  553.862986][ T8038]  ? sysfs_create_mount_point+0xb0/0xb0
[  553.868826][ T8038]  ? spin_bug+0x1d0/0x1d0
[  553.873580][ T8038]  ? net_namespace+0x12/0x40
[  553.879039][ T8038]  ? device_namespace+0x8d/0xc0
[  553.885406][ T8038]  kobject_add_internal+0x2c8/0x970
[  553.895996][ T8038]  kobject_add+0x16f/0x240
[  553.901408][ T8038]  ? kset_create_and_add+0x190/0x190
[  553.907106][ T8038]  ? do_raw_spin_unlock+0x173/0x230
[  553.912526][ T8038]  ? kobject_put+0xbe/0x440
[  553.917763][ T8038]  ? device_add+0xc35/0x1aa0
[  553.922730][ T8038]  device_add+0x289/0x1aa0
[  553.927451][ T8038]  ? device_initialize+0x510/0x510
[  553.933655][ T8038]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  553.941085][ T8038]  ? __init_waitqueue_head+0xca/0x150
[  553.946682][ T8038]  netdev_register_kobject+0x183/0x3f0
[  553.952727][ T8038]  register_netdevice+0xbe6/0x14b0
[  553.958583][ T8038]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  553.965222][ T8038]  ? validate_linkmsg+0x6fc/0x9c0
[  553.971037][ T8038]  br_dev_newlink+0x27/0x110
[  553.975816][ T8038]  ? br_changelink+0x1760/0x1760
[  553.980970][ T8038]  __rtnl_newlink+0x1173/0x1930
[  553.985843][ T8038]  ? rtnl_link_unregister+0x260/0x260
[  553.991437][ T8038]  rtnl_newlink+0x67/0xa0
[  553.995862][ T8038]  ? __rtnl_newlink+0x1930/0x1930
[  554.001156][ T8038]  rtnetlink_rcv_msg+0x3c7/0xe00
[  554.006310][ T8038]  ? rtnl_fill_vf+0x4a0/0x4a0
[  554.011171][ T8038]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  554.017783][ T8038]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  554.024047][ T8038]  netlink_rcv_skb+0x16b/0x440
[  554.028986][ T8038]  ? rtnl_fill_vf+0x4a0/0x4a0
[  554.033856][ T8038]  ? netlink_ack+0x1380/0x1380
[  554.038721][ T8038]  ? lock_sync+0x190/0x190
[  554.043699][ T8038]  ? netlink_deliver_tap+0x1a0/0xd00
[  554.049092][ T8038]  ? _copy_from_iter+0x2c1/0x10f0
[  554.054488][ T8038]  netlink_unicast+0x53b/0x810
[  554.059351][ T8038]  ? netlink_attachskb+0x880/0x880
[  554.064559][ T8038]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  554.070685][ T8038]  ? __phys_addr_symbol+0x30/0x70
[  554.076067][ T8038]  ? __check_object_size+0x323/0x730
[  554.081710][ T8038]  netlink_sendmsg+0x93c/0xe40
[  554.086497][ T8038]  ? netlink_unicast+0x810/0x810
[  554.091536][ T8038]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  554.097008][ T8038]  ? netlink_unicast+0x810/0x810
[  554.102216][ T8038]  __sock_sendmsg+0xd5/0x180
[  554.106835][ T8038]  ____sys_sendmsg+0x6ac/0x940
[  554.111692][ T8038]  ? copy_msghdr_from_user+0x10b/0x160
[  554.118287][ T8038]  ? kernel_sendmsg+0x50/0x50
[  554.123061][ T8038]  ? hlock_class+0x4e/0x130
[  554.127790][ T8038]  ? __lock_acquire+0x14e0/0x3b10
[  554.133368][ T8038]  ___sys_sendmsg+0x135/0x1d0
[  554.138241][ T8038]  ? do_recvmmsg+0x740/0x740
[  554.142840][ T8038]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  554.149881][ T8038]  ? find_held_lock+0x2d/0x110
[  554.155095][ T8038]  ? __fget_light+0x1fc/0x260
[  554.160046][ T8038]  __sys_sendmsg+0x117/0x1e0
[  554.164738][ T8038]  ? __sys_sendmsg_sock+0x30/0x30
[  554.169936][ T8038]  ? __do_sys_rseq+0x750/0x750
[  554.174989][ T8038]  ? syscall_enter_from_user_mode+0x7f/0x120
[  554.181207][ T8038]  do_syscall_64+0x40/0x110
[  554.186067][ T8038]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  554.192069][ T8038] RIP: 0033:0x7fb700fd30b9
[  554.196484][ T8038] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  554.216625][ T8038] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  554.225653][ T8038] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  554.233986][ T8038] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  554.242570][ T8038] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  554.250972][ T8038] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  554.259301][ T8038] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  554.267548][ T8038]  </TASK>
[  554.271976][ T8038] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  554.342165][ T8039] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  554.352817][ T8039] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  554.363230][ T8039] CPU: 0 PID: 8039 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  554.373684][ T8039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  554.383938][ T8039] Call Trace:
[  554.387304][ T8039]  <TASK>
[  554.390260][ T8039]  dump_stack_lvl+0x125/0x1b0
[  554.395300][ T8039]  sysfs_warn_dup+0x7f/0xa0
[  554.399903][ T8039]  sysfs_create_dir_ns+0x249/0x2b0
[  554.405122][ T8039]  ? sysfs_create_mount_point+0xb0/0xb0
[  554.411208][ T8039]  ? spin_bug+0x1d0/0x1d0
[  554.415708][ T8039]  ? net_namespace+0x12/0x40
[  554.420488][ T8039]  ? device_namespace+0x8d/0xc0
[  554.425527][ T8039]  kobject_add_internal+0x2c8/0x970
[  554.430750][ T8039]  kobject_add+0x16f/0x240
[  554.435179][ T8039]  ? kset_create_and_add+0x190/0x190
[  554.440809][ T8039]  ? do_raw_spin_unlock+0x173/0x230
[  554.446396][ T8039]  ? kobject_put+0xbe/0x440
[  554.451297][ T8039]  ? device_add+0xc35/0x1aa0
[  554.456261][ T8039]  device_add+0x289/0x1aa0
[  554.460952][ T8039]  ? device_initialize+0x510/0x510
[  554.466165][ T8039]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  554.473136][ T8039]  ? __init_waitqueue_head+0xca/0x150
[  554.478996][ T8039]  netdev_register_kobject+0x183/0x3f0
[  554.484583][ T8039]  register_netdevice+0xbe6/0x14b0
[  554.489822][ T8039]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  554.495748][ T8039]  ? validate_linkmsg+0x6fc/0x9c0
[  554.500784][ T8039]  br_dev_newlink+0x27/0x110
[  554.505424][ T8039]  ? br_changelink+0x1760/0x1760
[  554.510955][ T8039]  __rtnl_newlink+0x1173/0x1930
[  554.515948][ T8039]  ? rtnl_link_unregister+0x260/0x260
[  554.521795][ T8039]  rtnl_newlink+0x67/0xa0
[  554.526310][ T8039]  ? __rtnl_newlink+0x1930/0x1930
[  554.531815][ T8039]  rtnetlink_rcv_msg+0x3c7/0xe00
[  554.537121][ T8039]  ? rtnl_fill_vf+0x4a0/0x4a0
[  554.542279][ T8039]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  554.548460][ T8039]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  554.554760][ T8039]  netlink_rcv_skb+0x16b/0x440
[  554.559550][ T8039]  ? rtnl_fill_vf+0x4a0/0x4a0
[  554.564434][ T8039]  ? netlink_ack+0x1380/0x1380
[  554.569929][ T8039]  ? lock_sync+0x190/0x190
[  554.574505][ T8039]  ? netlink_deliver_tap+0x1a0/0xd00
[  554.580296][ T8039]  ? _copy_from_iter+0x2c1/0x10f0
[  554.585466][ T8039]  netlink_unicast+0x53b/0x810
[  554.590344][ T8039]  ? netlink_attachskb+0x880/0x880
[  554.595666][ T8039]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  554.602447][ T8039]  ? __phys_addr_symbol+0x30/0x70
[  554.607491][ T8039]  ? __check_object_size+0x323/0x730
[  554.613325][ T8039]  netlink_sendmsg+0x93c/0xe40
[  554.618563][ T8039]  ? netlink_unicast+0x810/0x810
[  554.623835][ T8039]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  554.629310][ T8039]  ? netlink_unicast+0x810/0x810
[  554.634269][ T8039]  __sock_sendmsg+0xd5/0x180
[  554.638887][ T8039]  ____sys_sendmsg+0x6ac/0x940
[  554.643761][ T8039]  ? copy_msghdr_from_user+0x10b/0x160
[  554.649240][ T8039]  ? kernel_sendmsg+0x50/0x50
[  554.654729][ T8039]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  554.660848][ T8039]  ___sys_sendmsg+0x135/0x1d0
[  554.666265][ T8039]  ? do_recvmmsg+0x740/0x740
[  554.671165][ T8039]  ? find_held_lock+0x2d/0x110
[  554.676656][ T8039]  ? preempt_count_sub+0x160/0x160
[  554.681988][ T8039]  ? __fget_light+0x1fc/0x260
[  554.686930][ T8039]  __sys_sendmsg+0x117/0x1e0
[  554.691542][ T8039]  ? __sys_sendmsg_sock+0x30/0x30
[  554.696941][ T8039]  ? xfd_validate_state+0x5d/0x180
[  554.702091][ T8039]  ? syscall_enter_from_user_mode+0x7f/0x120
[  554.708122][ T8039]  do_syscall_64+0x40/0x110
[  554.713013][ T8039]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  554.719752][ T8039] RIP: 0033:0x7fb700fd30b9
[  554.724363][ T8039] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  554.745297][ T8039] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  554.753805][ T8039] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  554.762064][ T8039] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  554.770687][ T8039] RBP: 00000000000870ff R08: 0000000000000000 R09: 0000000000000006
[  554.779194][ T8039] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  554.788447][ T8039] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  554.797054][ T8039]  </TASK>
[  554.801838][ T8039] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  554.866055][ T8039] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  554.876245][ T8039] CPU: 1 PID: 8039 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  554.886680][ T8039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  554.898917][ T8039] Call Trace:
[  554.902821][ T8039]  <TASK>
[  554.905949][ T8039]  dump_stack_lvl+0x125/0x1b0
[  554.910750][ T8039]  sysfs_warn_dup+0x7f/0xa0
[  554.915740][ T8039]  sysfs_create_dir_ns+0x249/0x2b0
[  554.921937][ T8039]  ? sysfs_create_mount_point+0xb0/0xb0
[  554.927614][ T8039]  ? spin_bug+0x1d0/0x1d0
[  554.932515][ T8039]  ? net_namespace+0x12/0x40
[  554.938090][ T8039]  ? device_namespace+0x8d/0xc0
[  554.945060][ T8039]  kobject_add_internal+0x2c8/0x970
[  554.951116][ T8039]  kobject_add+0x16f/0x240
[  554.956097][ T8039]  ? kset_create_and_add+0x190/0x190
[  554.962313][ T8039]  ? do_raw_spin_unlock+0x173/0x230
[  554.968252][ T8039]  ? kobject_put+0xbe/0x440
[  554.973287][ T8039]  ? device_add+0xc35/0x1aa0
[  554.978496][ T8039]  device_add+0x289/0x1aa0
[  554.983299][ T8039]  ? device_initialize+0x510/0x510
[  554.989043][ T8039]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  554.996541][ T8039]  ? __init_waitqueue_head+0xca/0x150
[  555.002590][ T8039]  netdev_register_kobject+0x183/0x3f0
[  555.008876][ T8039]  register_netdevice+0xbe6/0x14b0
[  555.014374][ T8039]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  555.020744][ T8039]  ? validate_linkmsg+0x6fc/0x9c0
[  555.026181][ T8039]  br_dev_newlink+0x27/0x110
[  555.031289][ T8039]  ? br_changelink+0x1760/0x1760
[  555.036871][ T8039]  __rtnl_newlink+0x1173/0x1930
[  555.042044][ T8039]  ? rtnl_link_unregister+0x260/0x260
[  555.048116][ T8039]  rtnl_newlink+0x67/0xa0
[  555.053320][ T8039]  ? __rtnl_newlink+0x1930/0x1930
[  555.058715][ T8039]  rtnetlink_rcv_msg+0x3c7/0xe00
[  555.064566][ T8039]  ? rtnl_fill_vf+0x4a0/0x4a0
[  555.069260][ T8039]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  555.075521][ T8039]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  555.081870][ T8039]  netlink_rcv_skb+0x16b/0x440
[  555.086655][ T8039]  ? rtnl_fill_vf+0x4a0/0x4a0
[  555.091637][ T8039]  ? netlink_ack+0x1380/0x1380
[  555.097013][ T8039]  ? lock_sync+0x190/0x190
[  555.101769][ T8039]  ? netlink_deliver_tap+0x1a0/0xd00
[  555.107697][ T8039]  ? _copy_from_iter+0x2c1/0x10f0
[  555.113584][ T8039]  netlink_unicast+0x53b/0x810
[  555.118649][ T8039]  ? netlink_attachskb+0x880/0x880
[  555.124203][ T8039]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  555.131536][ T8039]  ? __phys_addr_symbol+0x30/0x70
[  555.136732][ T8039]  ? __check_object_size+0x323/0x730
[  555.142310][ T8039]  netlink_sendmsg+0x93c/0xe40
[  555.147451][ T8039]  ? netlink_unicast+0x810/0x810
[  555.152845][ T8039]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  555.158779][ T8039]  ? netlink_unicast+0x810/0x810
[  555.164356][ T8039]  __sock_sendmsg+0xd5/0x180
[  555.170139][ T8039]  ____sys_sendmsg+0x6ac/0x940
[  555.175508][ T8039]  ? copy_msghdr_from_user+0x10b/0x160
[  555.181475][ T8039]  ? kernel_sendmsg+0x50/0x50
[  555.186896][ T8039]  ? hlock_class+0x4e/0x130
[  555.192049][ T8039]  ? __lock_acquire+0x14e0/0x3b10
[  555.198590][ T8039]  ___sys_sendmsg+0x135/0x1d0
[  555.204064][ T8039]  ? do_recvmmsg+0x740/0x740
[  555.208864][ T8039]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  555.215087][ T8039]  ? find_held_lock+0x2d/0x110
[  555.220505][ T8039]  ? __fget_light+0x1fc/0x260
[  555.226464][ T8039]  __sys_sendmsg+0x117/0x1e0
[  555.231176][ T8039]  ? __sys_sendmsg_sock+0x30/0x30
[  555.236501][ T8039]  ? xfd_validate_state+0x5d/0x180
[  555.241827][ T8039]  ? syscall_enter_from_user_mode+0x7f/0x120
[  555.248278][ T8039]  do_syscall_64+0x40/0x110
[  555.252888][ T8039]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  555.259569][ T8039] RIP: 0033:0x7fb700fd30b9
[  555.264603][ T8039] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  555.287095][ T8039] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  555.295867][ T8039] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  555.303959][ T8039] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  555.312407][ T8039] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  555.320921][ T8039] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  555.329103][ T8039] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  555.337128][ T8039]  </TASK>
[  555.340875][ T8039] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  555.402336][ T8040] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  555.413311][ T8040] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  555.423637][ T8040] CPU: 1 PID: 8040 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  555.434435][ T8040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  555.444846][ T8040] Call Trace:
[  555.448144][ T8040]  <TASK>
[  555.451341][ T8040]  dump_stack_lvl+0x125/0x1b0
[  555.456265][ T8040]  sysfs_warn_dup+0x7f/0xa0
[  555.461398][ T8040]  sysfs_create_dir_ns+0x249/0x2b0
[  555.466742][ T8040]  ? sysfs_create_mount_point+0xb0/0xb0
[  555.472662][ T8040]  ? spin_bug+0x1d0/0x1d0
[  555.477187][ T8040]  ? net_namespace+0x12/0x40
[  555.481811][ T8040]  ? device_namespace+0x8d/0xc0
[  555.486898][ T8040]  kobject_add_internal+0x2c8/0x970
[  555.492323][ T8040]  kobject_add+0x16f/0x240
[  555.496775][ T8040]  ? kset_create_and_add+0x190/0x190
[  555.502522][ T8040]  ? do_raw_spin_unlock+0x173/0x230
[  555.509287][ T8040]  ? kobject_put+0xbe/0x440
[  555.514449][ T8040]  ? device_add+0xc35/0x1aa0
[  555.519742][ T8040]  device_add+0x289/0x1aa0
[  555.524999][ T8040]  ? device_initialize+0x510/0x510
[  555.530974][ T8040]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  555.538218][ T8040]  ? __init_waitqueue_head+0xca/0x150
[  555.544092][ T8040]  netdev_register_kobject+0x183/0x3f0
[  555.550039][ T8040]  register_netdevice+0xbe6/0x14b0
[  555.555363][ T8040]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  555.561842][ T8040]  ? validate_linkmsg+0x6fc/0x9c0
[  555.567063][ T8040]  br_dev_newlink+0x27/0x110
[  555.572124][ T8040]  ? br_changelink+0x1760/0x1760
[  555.577436][ T8040]  __rtnl_newlink+0x1173/0x1930
[  555.582328][ T8040]  ? rtnl_link_unregister+0x260/0x260
[  555.588022][ T8040]  rtnl_newlink+0x67/0xa0
[  555.592541][ T8040]  ? __rtnl_newlink+0x1930/0x1930
[  555.597918][ T8040]  rtnetlink_rcv_msg+0x3c7/0xe00
[  555.602982][ T8040]  ? rtnl_fill_vf+0x4a0/0x4a0
[  555.607914][ T8040]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  555.614292][ T8040]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  555.620440][ T8040]  netlink_rcv_skb+0x16b/0x440
[  555.625274][ T8040]  ? rtnl_fill_vf+0x4a0/0x4a0
[  555.630402][ T8040]  ? netlink_ack+0x1380/0x1380
[  555.635888][ T8040]  ? lock_sync+0x190/0x190
[  555.640429][ T8040]  ? netlink_deliver_tap+0x1a0/0xd00
[  555.645900][ T8040]  ? _copy_from_iter+0x2c1/0x10f0
[  555.651023][ T8040]  netlink_unicast+0x53b/0x810
[  555.656062][ T8040]  ? netlink_attachskb+0x880/0x880
[  555.661660][ T8040]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  555.667577][ T8040]  ? __phys_addr_symbol+0x30/0x70
[  555.672705][ T8040]  ? __check_object_size+0x323/0x730
[  555.678136][ T8040]  netlink_sendmsg+0x93c/0xe40
[  555.683094][ T8040]  ? netlink_unicast+0x810/0x810
[  555.688068][ T8040]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  555.693625][ T8040]  ? netlink_unicast+0x810/0x810
[  555.698844][ T8040]  __sock_sendmsg+0xd5/0x180
[  555.703795][ T8040]  ____sys_sendmsg+0x6ac/0x940
[  555.708930][ T8040]  ? copy_msghdr_from_user+0x10b/0x160
[  555.714933][ T8040]  ? kernel_sendmsg+0x50/0x50
[  555.720946][ T8040]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  555.728115][ T8040]  ___sys_sendmsg+0x135/0x1d0
[  555.732840][ T8040]  ? do_recvmmsg+0x740/0x740
[  555.737958][ T8040]  ? find_held_lock+0x2d/0x110
[  555.742872][ T8040]  ? preempt_count_sub+0x160/0x160
[  555.748644][ T8040]  ? __fget_light+0x1fc/0x260
[  555.753769][ T8040]  __sys_sendmsg+0x117/0x1e0
[  555.759602][ T8040]  ? __sys_sendmsg_sock+0x30/0x30
[  555.765299][ T8040]  ? syscall_enter_from_user_mode+0x7f/0x120
[  555.771671][ T8040]  do_syscall_64+0x40/0x110
[  555.776853][ T8040]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  555.783224][ T8040] RIP: 0033:0x7fb700fd30b9
[  555.787960][ T8040] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  555.809090][ T8040] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  555.818334][ T8040] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  555.827376][ T8040] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  555.837044][ T8040] RBP: 0000000000087539 R08: 0000000000000000 R09: 0000000000000006
[  555.845741][ T8040] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  555.854462][ T8040] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  555.863047][ T8040]  </TASK>
[  555.867028][ T8040] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  555.927185][ T8040] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  555.938409][ T8040] CPU: 0 PID: 8040 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  555.948948][ T8040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  555.959763][ T8040] Call Trace:
[  555.963140][ T8040]  <TASK>
[  555.966185][ T8040]  dump_stack_lvl+0x125/0x1b0
[  555.970978][ T8040]  sysfs_warn_dup+0x7f/0xa0
[  555.975837][ T8040]  sysfs_create_dir_ns+0x249/0x2b0
[  555.980988][ T8040]  ? sysfs_create_mount_point+0xb0/0xb0
[  555.986947][ T8040]  ? spin_bug+0x1d0/0x1d0
[  555.991834][ T8040]  ? net_namespace+0x12/0x40
[  555.996593][ T8040]  ? device_namespace+0x8d/0xc0
[  556.001552][ T8040]  kobject_add_internal+0x2c8/0x970
[  556.006891][ T8040]  kobject_add+0x16f/0x240
[  556.011688][ T8040]  ? kset_create_and_add+0x190/0x190
[  556.017022][ T8040]  ? do_raw_spin_unlock+0x173/0x230
[  556.022530][ T8040]  ? kobject_put+0xbe/0x440
[  556.027418][ T8040]  ? device_add+0xc35/0x1aa0
[  556.032307][ T8040]  device_add+0x289/0x1aa0
[  556.039031][ T8040]  ? device_initialize+0x510/0x510
[  556.044348][ T8040]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  556.051406][ T8040]  ? __init_waitqueue_head+0xca/0x150
[  556.057422][ T8040]  netdev_register_kobject+0x183/0x3f0
[  556.065100][ T8040]  register_netdevice+0xbe6/0x14b0
[  556.072689][ T8040]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  556.079552][ T8040]  ? validate_linkmsg+0x6fc/0x9c0
[  556.084708][ T8040]  br_dev_newlink+0x27/0x110
[  556.089924][ T8040]  ? br_changelink+0x1760/0x1760
[  556.095143][ T8040]  __rtnl_newlink+0x1173/0x1930
[  556.100926][ T8040]  ? rtnl_link_unregister+0x260/0x260
[  556.108015][ T8040]  rtnl_newlink+0x67/0xa0
[  556.114670][ T8040]  ? __rtnl_newlink+0x1930/0x1930
[  556.120940][ T8040]  rtnetlink_rcv_msg+0x3c7/0xe00
[  556.127056][ T8040]  ? rtnl_fill_vf+0x4a0/0x4a0
[  556.132134][ T8040]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  556.138427][ T8040]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  556.145057][ T8040]  netlink_rcv_skb+0x16b/0x440
[  556.150204][ T8040]  ? rtnl_fill_vf+0x4a0/0x4a0
[  556.155265][ T8040]  ? netlink_ack+0x1380/0x1380
[  556.160535][ T8040]  ? lock_sync+0x190/0x190
[  556.165771][ T8040]  ? netlink_deliver_tap+0x1a0/0xd00
[  556.171795][ T8040]  ? _copy_from_iter+0x2c1/0x10f0
[  556.177284][ T8040]  netlink_unicast+0x53b/0x810
[  556.182426][ T8040]  ? netlink_attachskb+0x880/0x880
[  556.187558][ T8040]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  556.193815][ T8040]  ? __phys_addr_symbol+0x30/0x70
[  556.199107][ T8040]  ? __check_object_size+0x323/0x730
[  556.204491][ T8040]  netlink_sendmsg+0x93c/0xe40
[  556.209553][ T8040]  ? netlink_unicast+0x810/0x810
[  556.216432][ T8040]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  556.222307][ T8040]  ? netlink_unicast+0x810/0x810
[  556.228249][ T8040]  __sock_sendmsg+0xd5/0x180
[  556.233912][ T8040]  ____sys_sendmsg+0x6ac/0x940
[  556.241312][ T8040]  ? copy_msghdr_from_user+0x10b/0x160
[  556.247401][ T8040]  ? kernel_sendmsg+0x50/0x50
[  556.252786][ T8040]  ? hlock_class+0x4e/0x130
[  556.257603][ T8040]  ? __lock_acquire+0x14e0/0x3b10
[  556.262918][ T8040]  ___sys_sendmsg+0x135/0x1d0
[  556.267805][ T8040]  ? do_recvmmsg+0x740/0x740
[  556.272579][ T8040]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  556.278685][ T8040]  ? find_held_lock+0x2d/0x110
[  556.283854][ T8040]  ? __fget_light+0x1fc/0x260
[  556.288953][ T8040]  __sys_sendmsg+0x117/0x1e0
[  556.293594][ T8040]  ? __sys_sendmsg_sock+0x30/0x30
[  556.300250][ T8040]  ? xfd_validate_state+0x5d/0x180
[  556.305418][ T8040]  ? syscall_enter_from_user_mode+0x7f/0x120
[  556.311578][ T8040]  do_syscall_64+0x40/0x110
[  556.316384][ T8040]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  556.323252][ T8040] RIP: 0033:0x7fb700fd30b9
[  556.327674][ T8040] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  556.348084][ T8040] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  556.357139][ T8040] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  556.366043][ T8040] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  556.374779][ T8040] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  556.383119][ T8040] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  556.391629][ T8040] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  556.399997][ T8040]  </TASK>
[  556.404625][ T8040] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  556.462228][ T8041] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  556.473943][ T8041] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  556.483436][ T8041] CPU: 1 PID: 8041 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  556.494773][ T8041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  556.506420][ T8041] Call Trace:
[  556.510447][ T8041]  <TASK>
[  556.514921][ T8041]  dump_stack_lvl+0x125/0x1b0
[  556.520077][ T8041]  sysfs_warn_dup+0x7f/0xa0
[  556.525053][ T8041]  sysfs_create_dir_ns+0x249/0x2b0
[  556.530201][ T8041]  ? sysfs_create_mount_point+0xb0/0xb0
[  556.535871][ T8041]  ? spin_bug+0x1d0/0x1d0
[  556.540405][ T8041]  ? net_namespace+0x12/0x40
[  556.545297][ T8041]  ? device_namespace+0x8d/0xc0
[  556.550643][ T8041]  kobject_add_internal+0x2c8/0x970
[  556.556144][ T8041]  kobject_add+0x16f/0x240
[  556.560687][ T8041]  ? kset_create_and_add+0x190/0x190
[  556.566375][ T8041]  ? do_raw_spin_unlock+0x173/0x230
[  556.572196][ T8041]  ? kobject_put+0xbe/0x440
[  556.576894][ T8041]  ? device_add+0xc35/0x1aa0
[  556.581672][ T8041]  device_add+0x289/0x1aa0
[  556.586211][ T8041]  ? device_initialize+0x510/0x510
[  556.591796][ T8041]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  556.603357][ T8041]  ? __init_waitqueue_head+0xca/0x150
[  556.608944][ T8041]  netdev_register_kobject+0x183/0x3f0
[  556.614975][ T8041]  register_netdevice+0xbe6/0x14b0
[  556.620184][ T8041]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  556.626138][ T8041]  ? validate_linkmsg+0x6fc/0x9c0
[  556.631174][ T8041]  br_dev_newlink+0x27/0x110
[  556.636050][ T8041]  ? br_changelink+0x1760/0x1760
[  556.641410][ T8041]  __rtnl_newlink+0x1173/0x1930
[  556.646814][ T8041]  ? rtnl_link_unregister+0x260/0x260
[  556.652232][ T8041]  rtnl_newlink+0x67/0xa0
[  556.656925][ T8041]  ? __rtnl_newlink+0x1930/0x1930
[  556.661978][ T8041]  rtnetlink_rcv_msg+0x3c7/0xe00
[  556.667118][ T8041]  ? rtnl_fill_vf+0x4a0/0x4a0
[  556.671938][ T8041]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  556.678745][ T8041]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  556.685454][ T8041]  netlink_rcv_skb+0x16b/0x440
[  556.690582][ T8041]  ? rtnl_fill_vf+0x4a0/0x4a0
[  556.695393][ T8041]  ? netlink_ack+0x1380/0x1380
[  556.700240][ T8041]  ? lock_sync+0x190/0x190
[  556.704871][ T8041]  ? netlink_deliver_tap+0x1a0/0xd00
[  556.710334][ T8041]  ? _copy_from_iter+0x2c1/0x10f0
[  556.715887][ T8041]  netlink_unicast+0x53b/0x810
[  556.720799][ T8041]  ? netlink_attachskb+0x880/0x880
[  556.725947][ T8041]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  556.732253][ T8041]  ? __phys_addr_symbol+0x30/0x70
[  556.737876][ T8041]  ? __check_object_size+0x323/0x730
[  556.743737][ T8041]  netlink_sendmsg+0x93c/0xe40
[  556.749500][ T8041]  ? netlink_unicast+0x810/0x810
[  556.754917][ T8041]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  556.760540][ T8041]  ? netlink_unicast+0x810/0x810
[  556.765865][ T8041]  __sock_sendmsg+0xd5/0x180
[  556.770724][ T8041]  ____sys_sendmsg+0x6ac/0x940
[  556.775759][ T8041]  ? copy_msghdr_from_user+0x10b/0x160
[  556.781223][ T8041]  ? kernel_sendmsg+0x50/0x50
[  556.786186][ T8041]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  556.792446][ T8041]  ___sys_sendmsg+0x135/0x1d0
[  556.797140][ T8041]  ? do_recvmmsg+0x740/0x740
[  556.802016][ T8041]  ? find_held_lock+0x2d/0x110
[  556.807622][ T8041]  ? preempt_count_sub+0x160/0x160
[  556.813733][ T8041]  ? __fget_light+0x1fc/0x260
[  556.818708][ T8041]  __sys_sendmsg+0x117/0x1e0
[  556.823686][ T8041]  ? __sys_sendmsg_sock+0x30/0x30
[  556.829324][ T8041]  ? xfd_validate_state+0x5d/0x180
[  556.834851][ T8041]  ? syscall_enter_from_user_mode+0x7f/0x120
[  556.841477][ T8041]  do_syscall_64+0x40/0x110
[  556.846359][ T8041]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  556.853757][ T8041] RIP: 0033:0x7fb700fd30b9
[  556.859669][ T8041] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  556.881433][ T8041] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  556.889861][ T8041] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  556.899070][ T8041] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  556.908469][ T8041] RBP: 000000000008795d R08: 0000000000000000 R09: 0000000000000006
[  556.917072][ T8041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  556.926456][ T8041] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  556.936356][ T8041]  </TASK>
[  556.942086][ T8041] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  557.005875][ T8041] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  557.015813][ T8041] CPU: 1 PID: 8041 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  557.026636][ T8041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  557.036703][ T8041] Call Trace:
[  557.040123][ T8041]  <TASK>
[  557.043169][ T8041]  dump_stack_lvl+0x125/0x1b0
[  557.048056][ T8041]  sysfs_warn_dup+0x7f/0xa0
[  557.052720][ T8041]  sysfs_create_dir_ns+0x249/0x2b0
[  557.057878][ T8041]  ? sysfs_create_mount_point+0xb0/0xb0
[  557.063790][ T8041]  ? spin_bug+0x1d0/0x1d0
[  557.068147][ T8041]  ? net_namespace+0x12/0x40
[  557.072976][ T8041]  ? device_namespace+0x8d/0xc0
[  557.077871][ T8041]  kobject_add_internal+0x2c8/0x970
[  557.083095][ T8041]  kobject_add+0x16f/0x240
[  557.087519][ T8041]  ? kset_create_and_add+0x190/0x190
[  557.093082][ T8041]  ? do_raw_spin_unlock+0x173/0x230
[  557.098743][ T8041]  ? kobject_put+0xbe/0x440
[  557.103313][ T8041]  ? device_add+0xc35/0x1aa0
[  557.108470][ T8041]  device_add+0x289/0x1aa0
[  557.113095][ T8041]  ? device_initialize+0x510/0x510
[  557.118629][ T8041]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  557.126433][ T8041]  ? __init_waitqueue_head+0xca/0x150
[  557.132205][ T8041]  netdev_register_kobject+0x183/0x3f0
[  557.138229][ T8041]  register_netdevice+0xbe6/0x14b0
[  557.143834][ T8041]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  557.150528][ T8041]  ? validate_linkmsg+0x6fc/0x9c0
[  557.156063][ T8041]  br_dev_newlink+0x27/0x110
[  557.161150][ T8041]  ? br_changelink+0x1760/0x1760
[  557.166367][ T8041]  __rtnl_newlink+0x1173/0x1930
[  557.171762][ T8041]  ? rtnl_link_unregister+0x260/0x260
[  557.177672][ T8041]  rtnl_newlink+0x67/0xa0
[  557.182324][ T8041]  ? __rtnl_newlink+0x1930/0x1930
[  557.187833][ T8041]  rtnetlink_rcv_msg+0x3c7/0xe00
[  557.192799][ T8041]  ? rtnl_fill_vf+0x4a0/0x4a0
[  557.197486][ T8041]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  557.203479][ T8041]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  557.210180][ T8041]  netlink_rcv_skb+0x16b/0x440
[  557.215253][ T8041]  ? rtnl_fill_vf+0x4a0/0x4a0
[  557.220231][ T8041]  ? netlink_ack+0x1380/0x1380
[  557.225195][ T8041]  ? lock_sync+0x190/0x190
[  557.229817][ T8041]  ? netlink_deliver_tap+0x1a0/0xd00
[  557.235559][ T8041]  ? _copy_from_iter+0x2c1/0x10f0
[  557.240821][ T8041]  netlink_unicast+0x53b/0x810
[  557.245701][ T8041]  ? netlink_attachskb+0x880/0x880
[  557.251061][ T8041]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  557.257327][ T8041]  ? __phys_addr_symbol+0x30/0x70
[  557.262709][ T8041]  ? __check_object_size+0x323/0x730
[  557.268110][ T8041]  netlink_sendmsg+0x93c/0xe40
[  557.273077][ T8041]  ? netlink_unicast+0x810/0x810
[  557.278116][ T8041]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  557.283430][ T8041]  ? netlink_unicast+0x810/0x810
[  557.288387][ T8041]  __sock_sendmsg+0xd5/0x180
[  557.293001][ T8041]  ____sys_sendmsg+0x6ac/0x940
[  557.297890][ T8041]  ? copy_msghdr_from_user+0x10b/0x160
[  557.303981][ T8041]  ? kernel_sendmsg+0x50/0x50
[  557.308725][ T8041]  ___sys_sendmsg+0x135/0x1d0
[  557.313465][ T8041]  ? do_recvmmsg+0x740/0x740
[  557.318393][ T8041]  ? find_held_lock+0x2d/0x110
[  557.323208][ T8041]  ? preempt_count_sub+0x160/0x160
[  557.328881][ T8041]  ? __fget_light+0x1fc/0x260
[  557.333574][ T8041]  __sys_sendmsg+0x117/0x1e0
[  557.338324][ T8041]  ? __sys_sendmsg_sock+0x30/0x30
[  557.343487][ T8041]  ? syscall_enter_from_user_mode+0x7f/0x120
[  557.349688][ T8041]  do_syscall_64+0x40/0x110
[  557.354409][ T8041]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  557.360510][ T8041] RIP: 0033:0x7fb700fd30b9
[  557.365042][ T8041] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  557.385993][ T8041] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  557.394765][ T8041] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  557.403354][ T8041] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  557.411615][ T8041] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  557.419969][ T8041] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  557.428426][ T8041] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  557.436701][ T8041]  </TASK>
[  557.441556][ T8041] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  557.501177][ T8042] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  557.512069][ T8042] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  557.521581][ T8042] CPU: 1 PID: 8042 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  557.532540][ T8042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  557.543115][ T8042] Call Trace:
[  557.547096][ T8042]  <TASK>
[  557.550126][ T8042]  dump_stack_lvl+0x125/0x1b0
[  557.554820][ T8042]  sysfs_warn_dup+0x7f/0xa0
[  557.559377][ T8042]  sysfs_create_dir_ns+0x249/0x2b0
[  557.564790][ T8042]  ? sysfs_create_mount_point+0xb0/0xb0
[  557.570478][ T8042]  ? spin_bug+0x1d0/0x1d0
[  557.575071][ T8042]  ? net_namespace+0x12/0x40
[  557.580166][ T8042]  ? device_namespace+0x8d/0xc0
[  557.585229][ T8042]  kobject_add_internal+0x2c8/0x970
[  557.591275][ T8042]  kobject_add+0x16f/0x240
[  557.595902][ T8042]  ? kset_create_and_add+0x190/0x190
[  557.602109][ T8042]  ? do_raw_spin_unlock+0x173/0x230
[  557.608296][ T8042]  ? kobject_put+0xbe/0x440
[  557.614028][ T8042]  ? device_add+0xc35/0x1aa0
[  557.618908][ T8042]  device_add+0x289/0x1aa0
[  557.623840][ T8042]  ? device_initialize+0x510/0x510
[  557.629950][ T8042]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  557.637177][ T8042]  ? __init_waitqueue_head+0xca/0x150
[  557.642831][ T8042]  netdev_register_kobject+0x183/0x3f0
[  557.648400][ T8042]  register_netdevice+0xbe6/0x14b0
[  557.653633][ T8042]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  557.659654][ T8042]  ? validate_linkmsg+0x6fc/0x9c0
[  557.664725][ T8042]  br_dev_newlink+0x27/0x110
[  557.669708][ T8042]  ? br_changelink+0x1760/0x1760
[  557.674929][ T8042]  __rtnl_newlink+0x1173/0x1930
[  557.679910][ T8042]  ? rtnl_link_unregister+0x260/0x260
[  557.685407][ T8042]  rtnl_newlink+0x67/0xa0
[  557.689768][ T8042]  ? __rtnl_newlink+0x1930/0x1930
[  557.695022][ T8042]  rtnetlink_rcv_msg+0x3c7/0xe00
[  557.700402][ T8042]  ? rtnl_fill_vf+0x4a0/0x4a0
[  557.705217][ T8042]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  557.711217][ T8042]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  557.717218][ T8042]  netlink_rcv_skb+0x16b/0x440
[  557.722181][ T8042]  ? rtnl_fill_vf+0x4a0/0x4a0
[  557.726867][ T8042]  ? netlink_ack+0x1380/0x1380
[  557.731676][ T8042]  ? lock_sync+0x190/0x190
[  557.736411][ T8042]  ? netlink_deliver_tap+0x1a0/0xd00
[  557.741799][ T8042]  ? _copy_from_iter+0x2c1/0x10f0
[  557.747802][ T8042]  netlink_unicast+0x53b/0x810
[  557.752890][ T8042]  ? netlink_attachskb+0x880/0x880
[  557.758302][ T8042]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  557.764695][ T8042]  ? __phys_addr_symbol+0x30/0x70
[  557.770004][ T8042]  ? __check_object_size+0x323/0x730
[  557.775843][ T8042]  netlink_sendmsg+0x93c/0xe40
[  557.781080][ T8042]  ? netlink_unicast+0x810/0x810
[  557.786330][ T8042]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  557.791776][ T8042]  ? netlink_unicast+0x810/0x810
[  557.797116][ T8042]  __sock_sendmsg+0xd5/0x180
[  557.801927][ T8042]  ____sys_sendmsg+0x6ac/0x940
[  557.807568][ T8042]  ? copy_msghdr_from_user+0x10b/0x160
[  557.813382][ T8042]  ? kernel_sendmsg+0x50/0x50
[  557.818538][ T8042]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  557.824948][ T8042]  ___sys_sendmsg+0x135/0x1d0
[  557.830028][ T8042]  ? do_recvmmsg+0x740/0x740
[  557.835622][ T8042]  ? find_held_lock+0x2d/0x110
[  557.840523][ T8042]  ? preempt_count_sub+0x160/0x160
[  557.845859][ T8042]  ? __fget_light+0x1fc/0x260
[  557.850995][ T8042]  __sys_sendmsg+0x117/0x1e0
[  557.855717][ T8042]  ? __sys_sendmsg_sock+0x30/0x30
[  557.861329][ T8042]  ? syscall_enter_from_user_mode+0x7f/0x120
[  557.867667][ T8042]  do_syscall_64+0x40/0x110
[  557.872441][ T8042]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  557.878553][ T8042] RIP: 0033:0x7fb700fd30b9
[  557.883622][ T8042] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  557.903717][ T8042] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  557.912973][ T8042] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  557.921051][ T8042] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  557.930878][ T8042] RBP: 0000000000087d81 R08: 0000000000000000 R09: 0000000000000006
[  557.942453][ T8042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  557.950987][ T8042] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  557.959167][ T8042]  </TASK>
[  557.964236][ T8042] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  558.016573][ T8042] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  558.026924][ T8042] CPU: 0 PID: 8042 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  558.039576][ T8042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  558.050148][ T8042] Call Trace:
[  558.053582][ T8042]  <TASK>
[  558.057046][ T8042]  dump_stack_lvl+0x125/0x1b0
[  558.062193][ T8042]  sysfs_warn_dup+0x7f/0xa0
[  558.066942][ T8042]  sysfs_create_dir_ns+0x249/0x2b0
[  558.073032][ T8042]  ? sysfs_create_mount_point+0xb0/0xb0
[  558.078690][ T8042]  ? spin_bug+0x1d0/0x1d0
[  558.083043][ T8042]  ? net_namespace+0x12/0x40
[  558.087674][ T8042]  ? device_namespace+0x8d/0xc0
[  558.092727][ T8042]  kobject_add_internal+0x2c8/0x970
[  558.097942][ T8042]  kobject_add+0x16f/0x240
[  558.102705][ T8042]  ? kset_create_and_add+0x190/0x190
[  558.108122][ T8042]  ? do_raw_spin_unlock+0x173/0x230
[  558.113646][ T8042]  ? kobject_put+0xbe/0x440
[  558.118333][ T8042]  ? device_add+0xc35/0x1aa0
[  558.124338][ T8042]  device_add+0x289/0x1aa0
[  558.129497][ T8042]  ? device_initialize+0x510/0x510
[  558.134807][ T8042]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  558.142025][ T8042]  ? __init_waitqueue_head+0xca/0x150
[  558.147687][ T8042]  netdev_register_kobject+0x183/0x3f0
[  558.153882][ T8042]  register_netdevice+0xbe6/0x14b0
[  558.159282][ T8042]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  558.165538][ T8042]  ? validate_linkmsg+0x6fc/0x9c0
[  558.170927][ T8042]  br_dev_newlink+0x27/0x110
[  558.175878][ T8042]  ? br_changelink+0x1760/0x1760
[  558.181003][ T8042]  __rtnl_newlink+0x1173/0x1930
[  558.186055][ T8042]  ? rtnl_link_unregister+0x260/0x260
[  558.191828][ T8042]  rtnl_newlink+0x67/0xa0
[  558.196200][ T8042]  ? __rtnl_newlink+0x1930/0x1930
[  558.201415][ T8042]  rtnetlink_rcv_msg+0x3c7/0xe00
[  558.206737][ T8042]  ? rtnl_fill_vf+0x4a0/0x4a0
[  558.211696][ T8042]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  558.218753][ T8042]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  558.225489][ T8042]  netlink_rcv_skb+0x16b/0x440
[  558.230891][ T8042]  ? rtnl_fill_vf+0x4a0/0x4a0
[  558.235959][ T8042]  ? netlink_ack+0x1380/0x1380
[  558.241101][ T8042]  ? lock_sync+0x190/0x190
[  558.245990][ T8042]  ? netlink_deliver_tap+0x1a0/0xd00
[  558.251424][ T8042]  ? _copy_from_iter+0x2c1/0x10f0
[  558.257377][ T8042]  netlink_unicast+0x53b/0x810
[  558.262656][ T8042]  ? netlink_attachskb+0x880/0x880
[  558.268072][ T8042]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  558.274552][ T8042]  ? __phys_addr_symbol+0x30/0x70
[  558.279720][ T8042]  ? __check_object_size+0x323/0x730
[  558.285104][ T8042]  netlink_sendmsg+0x93c/0xe40
[  558.290066][ T8042]  ? netlink_unicast+0x810/0x810
[  558.295544][ T8042]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  558.301636][ T8042]  ? netlink_unicast+0x810/0x810
[  558.308167][ T8042]  __sock_sendmsg+0xd5/0x180
[  558.313493][ T8042]  ____sys_sendmsg+0x6ac/0x940
[  558.318546][ T8042]  ? copy_msghdr_from_user+0x10b/0x160
[  558.324737][ T8042]  ? kernel_sendmsg+0x50/0x50
[  558.329437][ T8042]  ? hlock_class+0x4e/0x130
[  558.334152][ T8042]  ? __lock_acquire+0x14e0/0x3b10
[  558.339466][ T8042]  ___sys_sendmsg+0x135/0x1d0
[  558.345148][ T8042]  ? do_recvmmsg+0x740/0x740
[  558.350308][ T8042]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  558.356679][ T8042]  ? find_held_lock+0x2d/0x110
[  558.361929][ T8042]  ? __fget_light+0x1fc/0x260
[  558.366752][ T8042]  __sys_sendmsg+0x117/0x1e0
[  558.371967][ T8042]  ? __sys_sendmsg_sock+0x30/0x30
[  558.377086][ T8042]  ? xfd_validate_state+0x5d/0x180
[  558.382290][ T8042]  ? syscall_enter_from_user_mode+0x7f/0x120
[  558.388593][ T8042]  do_syscall_64+0x40/0x110
[  558.393309][ T8042]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  558.399468][ T8042] RIP: 0033:0x7fb700fd30b9
[  558.403905][ T8042] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  558.424733][ T8042] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  558.433265][ T8042] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  558.441419][ T8042] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  558.449939][ T8042] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  558.458364][ T8042] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  558.466427][ T8042] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  558.474966][ T8042]  </TASK>
[  558.479303][ T8042] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  558.541563][ T8043] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  558.553293][ T8043] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  558.563496][ T8043] CPU: 0 PID: 8043 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  558.573830][ T8043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  558.584624][ T8043] Call Trace:
[  558.588091][ T8043]  <TASK>
[  558.591138][ T8043]  dump_stack_lvl+0x125/0x1b0
[  558.596189][ T8043]  sysfs_warn_dup+0x7f/0xa0
[  558.601149][ T8043]  sysfs_create_dir_ns+0x249/0x2b0
[  558.606376][ T8043]  ? sysfs_create_mount_point+0xb0/0xb0
[  558.612027][ T8043]  ? spin_bug+0x1d0/0x1d0
[  558.616720][ T8043]  ? net_namespace+0x12/0x40
[  558.621494][ T8043]  ? device_namespace+0x8d/0xc0
[  558.626451][ T8043]  kobject_add_internal+0x2c8/0x970
[  558.631845][ T8043]  kobject_add+0x16f/0x240
[  558.636296][ T8043]  ? kset_create_and_add+0x190/0x190
[  558.641635][ T8043]  ? do_raw_spin_unlock+0x173/0x230
[  558.647048][ T8043]  ? kobject_put+0xbe/0x440
[  558.651580][ T8043]  ? device_add+0xc35/0x1aa0
[  558.656929][ T8043]  device_add+0x289/0x1aa0
[  558.661671][ T8043]  ? device_initialize+0x510/0x510
[  558.666879][ T8043]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  558.674555][ T8043]  ? __init_waitqueue_head+0xca/0x150
[  558.680032][ T8043]  netdev_register_kobject+0x183/0x3f0
[  558.685856][ T8043]  register_netdevice+0xbe6/0x14b0
[  558.691332][ T8043]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  558.697761][ T8043]  ? validate_linkmsg+0x6fc/0x9c0
[  558.702803][ T8043]  br_dev_newlink+0x27/0x110
[  558.707886][ T8043]  ? br_changelink+0x1760/0x1760
[  558.712951][ T8043]  __rtnl_newlink+0x1173/0x1930
[  558.718141][ T8043]  ? rtnl_link_unregister+0x260/0x260
[  558.723573][ T8043]  rtnl_newlink+0x67/0xa0
[  558.729398][ T8043]  ? __rtnl_newlink+0x1930/0x1930
[  558.734449][ T8043]  rtnetlink_rcv_msg+0x3c7/0xe00
[  558.739670][ T8043]  ? rtnl_fill_vf+0x4a0/0x4a0
[  558.744444][ T8043]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  558.750438][ T8043]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  558.756873][ T8043]  netlink_rcv_skb+0x16b/0x440
[  558.761652][ T8043]  ? rtnl_fill_vf+0x4a0/0x4a0
[  558.766363][ T8043]  ? netlink_ack+0x1380/0x1380
[  558.771156][ T8043]  ? lock_sync+0x190/0x190
[  558.775688][ T8043]  ? netlink_deliver_tap+0x1a0/0xd00
[  558.781317][ T8043]  ? _copy_from_iter+0x2c1/0x10f0
[  558.786358][ T8043]  netlink_unicast+0x53b/0x810
[  558.791149][ T8043]  ? netlink_attachskb+0x880/0x880
[  558.796536][ T8043]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  558.802543][ T8043]  ? __phys_addr_symbol+0x30/0x70
[  558.807812][ T8043]  ? __check_object_size+0x323/0x730
[  558.813595][ T8043]  netlink_sendmsg+0x93c/0xe40
[  558.818572][ T8043]  ? netlink_unicast+0x810/0x810
[  558.823550][ T8043]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  558.829405][ T8043]  ? netlink_unicast+0x810/0x810
[  558.834658][ T8043]  __sock_sendmsg+0xd5/0x180
[  558.839376][ T8043]  ____sys_sendmsg+0x6ac/0x940
[  558.844575][ T8043]  ? copy_msghdr_from_user+0x10b/0x160
[  558.850379][ T8043]  ? kernel_sendmsg+0x50/0x50
[  558.855352][ T8043]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  558.861699][ T8043]  ___sys_sendmsg+0x135/0x1d0
[  558.866582][ T8043]  ? do_recvmmsg+0x740/0x740
[  558.871281][ T8043]  ? find_held_lock+0x2d/0x110
[  558.876159][ T8043]  ? preempt_count_sub+0x160/0x160
[  558.881473][ T8043]  ? __fget_light+0x1fc/0x260
[  558.886351][ T8043]  __sys_sendmsg+0x117/0x1e0
[  558.891243][ T8043]  ? __sys_sendmsg_sock+0x30/0x30
[  558.896405][ T8043]  ? syscall_enter_from_user_mode+0x7f/0x120
[  558.902648][ T8043]  do_syscall_64+0x40/0x110
[  558.907179][ T8043]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  558.913127][ T8043] RIP: 0033:0x7fb700fd30b9
[  558.917729][ T8043] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  558.939096][ T8043] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  558.948159][ T8043] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  558.956420][ T8043] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  558.964844][ T8043] RBP: 0000000000088190 R08: 0000000000000000 R09: 0000000000000006
[  558.972989][ T8043] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  558.981047][ T8043] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  558.989210][ T8043]  </TASK>
[  558.992822][ T8043] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  559.047565][ T8043] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  559.056849][ T8043] CPU: 0 PID: 8043 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  559.067030][ T8043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  559.077627][ T8043] Call Trace:
[  559.080989][ T8043]  <TASK>
[  559.084794][ T8043]  dump_stack_lvl+0x125/0x1b0
[  559.089478][ T8043]  sysfs_warn_dup+0x7f/0xa0
[  559.094160][ T8043]  sysfs_create_dir_ns+0x249/0x2b0
[  559.099402][ T8043]  ? sysfs_create_mount_point+0xb0/0xb0
[  559.104958][ T8043]  ? spin_bug+0x1d0/0x1d0
[  559.109830][ T8043]  ? net_namespace+0x12/0x40
[  559.114615][ T8043]  ? device_namespace+0x8d/0xc0
[  559.121243][ T8043]  kobject_add_internal+0x2c8/0x970
[  559.127886][ T8043]  kobject_add+0x16f/0x240
[  559.132461][ T8043]  ? kset_create_and_add+0x190/0x190
[  559.138002][ T8043]  ? do_raw_spin_unlock+0x173/0x230
[  559.143579][ T8043]  ? kobject_put+0xbe/0x440
[  559.148508][ T8043]  ? device_add+0xc35/0x1aa0
[  559.153745][ T8043]  device_add+0x289/0x1aa0
[  559.158636][ T8043]  ? device_initialize+0x510/0x510
[  559.163961][ T8043]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  559.171117][ T8043]  ? __init_waitqueue_head+0xca/0x150
[  559.176683][ T8043]  netdev_register_kobject+0x183/0x3f0
[  559.182260][ T8043]  register_netdevice+0xbe6/0x14b0
[  559.187915][ T8043]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  559.194148][ T8043]  ? validate_linkmsg+0x6fc/0x9c0
[  559.199368][ T8043]  br_dev_newlink+0x27/0x110
[  559.203972][ T8043]  ? br_changelink+0x1760/0x1760
[  559.209187][ T8043]  __rtnl_newlink+0x1173/0x1930
[  559.214165][ T8043]  ? rtnl_link_unregister+0x260/0x260
[  559.220114][ T8043]  rtnl_newlink+0x67/0xa0
[  559.224987][ T8043]  ? __rtnl_newlink+0x1930/0x1930
[  559.230136][ T8043]  rtnetlink_rcv_msg+0x3c7/0xe00
[  559.235198][ T8043]  ? rtnl_fill_vf+0x4a0/0x4a0
[  559.240157][ T8043]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  559.246424][ T8043]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  559.252739][ T8043]  netlink_rcv_skb+0x16b/0x440
[  559.257658][ T8043]  ? rtnl_fill_vf+0x4a0/0x4a0
[  559.262579][ T8043]  ? netlink_ack+0x1380/0x1380
[  559.267490][ T8043]  ? lock_sync+0x190/0x190
[  559.272031][ T8043]  ? netlink_deliver_tap+0x1a0/0xd00
[  559.277508][ T8043]  ? _copy_from_iter+0x2c1/0x10f0
[  559.282635][ T8043]  netlink_unicast+0x53b/0x810
[  559.287702][ T8043]  ? netlink_attachskb+0x880/0x880
[  559.292909][ T8043]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  559.298826][ T8043]  ? __phys_addr_symbol+0x30/0x70
[  559.303861][ T8043]  ? __check_object_size+0x323/0x730
[  559.309247][ T8043]  netlink_sendmsg+0x93c/0xe40
[  559.314208][ T8043]  ? netlink_unicast+0x810/0x810
[  559.319467][ T8043]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  559.325142][ T8043]  ? netlink_unicast+0x810/0x810
[  559.330389][ T8043]  __sock_sendmsg+0xd5/0x180
[  559.335662][ T8043]  ____sys_sendmsg+0x6ac/0x940
[  559.340754][ T8043]  ? copy_msghdr_from_user+0x10b/0x160
[  559.346694][ T8043]  ? kernel_sendmsg+0x50/0x50
[  559.351398][ T8043]  ? hlock_class+0x4e/0x130
[  559.356401][ T8043]  ? __lock_acquire+0x14e0/0x3b10
[  559.361632][ T8043]  ___sys_sendmsg+0x135/0x1d0
[  559.366340][ T8043]  ? do_recvmmsg+0x740/0x740
[  559.371053][ T8043]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  559.377082][ T8043]  ? find_held_lock+0x2d/0x110
[  559.381986][ T8043]  ? __fget_light+0x1fc/0x260
[  559.386802][ T8043]  __sys_sendmsg+0x117/0x1e0
[  559.391506][ T8043]  ? __sys_sendmsg_sock+0x30/0x30
[  559.396628][ T8043]  ? xfd_validate_state+0x5d/0x180
[  559.401946][ T8043]  ? syscall_enter_from_user_mode+0x7f/0x120
[  559.407954][ T8043]  do_syscall_64+0x40/0x110
[  559.412673][ T8043]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  559.419002][ T8043] RIP: 0033:0x7fb700fd30b9
[  559.423627][ T8043] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  559.443874][ T8043] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  559.452387][ T8043] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  559.460598][ T8043] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  559.469488][ T8043] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  559.477726][ T8043] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  559.485982][ T8043] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  559.495042][ T8043]  </TASK>
[  559.499179][ T8043] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  559.571734][ T8044] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  559.582622][ T8044] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  559.592006][ T8044] CPU: 0 PID: 8044 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  559.602871][ T8044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  559.613588][ T8044] Call Trace:
[  559.617075][ T8044]  <TASK>
[  559.620218][ T8044]  dump_stack_lvl+0x125/0x1b0
[  559.625786][ T8044]  sysfs_warn_dup+0x7f/0xa0
[  559.631186][ T8044]  sysfs_create_dir_ns+0x249/0x2b0
[  559.637022][ T8044]  ? sysfs_create_mount_point+0xb0/0xb0
[  559.643109][ T8044]  ? spin_bug+0x1d0/0x1d0
[  559.647532][ T8044]  ? net_namespace+0x12/0x40
[  559.652403][ T8044]  ? device_namespace+0x8d/0xc0
[  559.657453][ T8044]  kobject_add_internal+0x2c8/0x970
[  559.663027][ T8044]  kobject_add+0x16f/0x240
[  559.667715][ T8044]  ? kset_create_and_add+0x190/0x190
[  559.673190][ T8044]  ? do_raw_spin_unlock+0x173/0x230
[  559.678591][ T8044]  ? kobject_put+0xbe/0x440
[  559.683306][ T8044]  ? device_add+0xc35/0x1aa0
[  559.688287][ T8044]  device_add+0x289/0x1aa0
[  559.692731][ T8044]  ? device_initialize+0x510/0x510
[  559.697875][ T8044]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  559.705389][ T8044]  ? __init_waitqueue_head+0xca/0x150
[  559.711423][ T8044]  netdev_register_kobject+0x183/0x3f0
[  559.717393][ T8044]  register_netdevice+0xbe6/0x14b0
[  559.722837][ T8044]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  559.729080][ T8044]  ? validate_linkmsg+0x6fc/0x9c0
[  559.734690][ T8044]  br_dev_newlink+0x27/0x110
[  559.739398][ T8044]  ? br_changelink+0x1760/0x1760
[  559.744560][ T8044]  __rtnl_newlink+0x1173/0x1930
[  559.749947][ T8044]  ? rtnl_link_unregister+0x260/0x260
[  559.755777][ T8044]  rtnl_newlink+0x67/0xa0
[  559.760458][ T8044]  ? __rtnl_newlink+0x1930/0x1930
[  559.765713][ T8044]  rtnetlink_rcv_msg+0x3c7/0xe00
[  559.771450][ T8044]  ? rtnl_fill_vf+0x4a0/0x4a0
[  559.776276][ T8044]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  559.782420][ T8044]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  559.789250][ T8044]  netlink_rcv_skb+0x16b/0x440
[  559.794247][ T8044]  ? rtnl_fill_vf+0x4a0/0x4a0
[  559.799398][ T8044]  ? netlink_ack+0x1380/0x1380
[  559.804790][ T8044]  ? lock_sync+0x190/0x190
[  559.809602][ T8044]  ? netlink_deliver_tap+0x1a0/0xd00
[  559.815219][ T8044]  ? _copy_from_iter+0x2c1/0x10f0
[  559.821065][ T8044]  netlink_unicast+0x53b/0x810
[  559.826771][ T8044]  ? netlink_attachskb+0x880/0x880
[  559.832629][ T8044]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  559.839312][ T8044]  ? __phys_addr_symbol+0x30/0x70
[  559.844635][ T8044]  ? __check_object_size+0x323/0x730
[  559.850059][ T8044]  netlink_sendmsg+0x93c/0xe40
[  559.855489][ T8044]  ? netlink_unicast+0x810/0x810
[  559.860504][ T8044]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  559.867857][ T8044]  ? netlink_unicast+0x810/0x810
[  559.873251][ T8044]  __sock_sendmsg+0xd5/0x180
[  559.878612][ T8044]  ____sys_sendmsg+0x6ac/0x940
[  559.883450][ T8044]  ? copy_msghdr_from_user+0x10b/0x160
[  559.889105][ T8044]  ? kernel_sendmsg+0x50/0x50
[  559.894166][ T8044]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  559.900382][ T8044]  ___sys_sendmsg+0x135/0x1d0
[  559.905266][ T8044]  ? do_recvmmsg+0x740/0x740
[  559.910164][ T8044]  ? find_held_lock+0x2d/0x110
[  559.915336][ T8044]  ? preempt_count_sub+0x160/0x160
[  559.920945][ T8044]  ? __fget_light+0x1fc/0x260
[  559.925723][ T8044]  __sys_sendmsg+0x117/0x1e0
[  559.930346][ T8044]  ? __sys_sendmsg_sock+0x30/0x30
[  559.936660][ T8044]  ? syscall_enter_from_user_mode+0x7f/0x120
[  559.943397][ T8044]  do_syscall_64+0x40/0x110
[  559.948378][ T8044]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  559.955963][ T8044] RIP: 0033:0x7fb700fd30b9
[  559.960484][ T8044] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  559.980897][ T8044] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  559.989579][ T8044] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  559.998198][ T8044] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  560.007246][ T8044] RBP: 00000000000885a0 R08: 0000000000000000 R09: 0000000000000006
[  560.015760][ T8044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  560.024097][ T8044] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  560.032474][ T8044]  </TASK>
[  560.037659][ T8044] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  560.106838][ T8044] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  560.116163][ T8044] CPU: 0 PID: 8044 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  560.126787][ T8044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  560.137405][ T8044] Call Trace:
[  560.140695][ T8044]  <TASK>
[  560.143870][ T8044]  dump_stack_lvl+0x125/0x1b0
[  560.148857][ T8044]  sysfs_warn_dup+0x7f/0xa0
[  560.153629][ T8044]  sysfs_create_dir_ns+0x249/0x2b0
[  560.158938][ T8044]  ? sysfs_create_mount_point+0xb0/0xb0
[  560.164679][ T8044]  ? spin_bug+0x1d0/0x1d0
[  560.169202][ T8044]  ? net_namespace+0x12/0x40
[  560.173976][ T8044]  ? device_namespace+0x8d/0xc0
[  560.178958][ T8044]  kobject_add_internal+0x2c8/0x970
[  560.184206][ T8044]  kobject_add+0x16f/0x240
[  560.188663][ T8044]  ? kset_create_and_add+0x190/0x190
[  560.194169][ T8044]  ? do_raw_spin_unlock+0x173/0x230
[  560.199780][ T8044]  ? kobject_put+0xbe/0x440
[  560.204446][ T8044]  ? device_add+0xc35/0x1aa0
[  560.209323][ T8044]  device_add+0x289/0x1aa0
[  560.213779][ T8044]  ? device_initialize+0x510/0x510
[  560.219134][ T8044]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  560.226350][ T8044]  ? __init_waitqueue_head+0xca/0x150
[  560.231871][ T8044]  netdev_register_kobject+0x183/0x3f0
[  560.237711][ T8044]  register_netdevice+0xbe6/0x14b0
[  560.243103][ T8044]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  560.249193][ T8044]  ? validate_linkmsg+0x6fc/0x9c0
[  560.254343][ T8044]  br_dev_newlink+0x27/0x110
[  560.259144][ T8044]  ? br_changelink+0x1760/0x1760
[  560.264216][ T8044]  __rtnl_newlink+0x1173/0x1930
[  560.269477][ T8044]  ? rtnl_link_unregister+0x260/0x260
[  560.275213][ T8044]  rtnl_newlink+0x67/0xa0
[  560.279655][ T8044]  ? __rtnl_newlink+0x1930/0x1930
[  560.284726][ T8044]  rtnetlink_rcv_msg+0x3c7/0xe00
[  560.289784][ T8044]  ? rtnl_fill_vf+0x4a0/0x4a0
[  560.294851][ T8044]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  560.301113][ T8044]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  560.307113][ T8044]  netlink_rcv_skb+0x16b/0x440
[  560.311900][ T8044]  ? rtnl_fill_vf+0x4a0/0x4a0
[  560.316945][ T8044]  ? netlink_ack+0x1380/0x1380
[  560.321719][ T8044]  ? lock_sync+0x190/0x190
[  560.326363][ T8044]  ? netlink_deliver_tap+0x1a0/0xd00
[  560.331923][ T8044]  ? _copy_from_iter+0x2c1/0x10f0
[  560.337439][ T8044]  netlink_unicast+0x53b/0x810
[  560.342245][ T8044]  ? netlink_attachskb+0x880/0x880
[  560.347549][ T8044]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  560.353491][ T8044]  ? __phys_addr_symbol+0x30/0x70
[  560.358552][ T8044]  ? __check_object_size+0x323/0x730
[  560.363896][ T8044]  netlink_sendmsg+0x93c/0xe40
[  560.368986][ T8044]  ? netlink_unicast+0x810/0x810
[  560.374088][ T8044]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  560.379418][ T8044]  ? netlink_unicast+0x810/0x810
[  560.384922][ T8044]  __sock_sendmsg+0xd5/0x180
[  560.389717][ T8044]  ____sys_sendmsg+0x6ac/0x940
[  560.394774][ T8044]  ? copy_msghdr_from_user+0x10b/0x160
[  560.400680][ T8044]  ? kernel_sendmsg+0x50/0x50
[  560.405493][ T8044]  ___sys_sendmsg+0x135/0x1d0
[  560.410182][ T8044]  ? do_recvmmsg+0x740/0x740
[  560.415043][ T8044]  ? find_held_lock+0x2d/0x110
[  560.419842][ T8044]  ? preempt_count_sub+0x160/0x160
[  560.425318][ T8044]  ? __fget_light+0x1fc/0x260
[  560.430010][ T8044]  __sys_sendmsg+0x117/0x1e0
[  560.434636][ T8044]  ? __sys_sendmsg_sock+0x30/0x30
[  560.439729][ T8044]  ? syscall_enter_from_user_mode+0x7f/0x120
[  560.445846][ T8044]  do_syscall_64+0x40/0x110
[  560.450373][ T8044]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  560.456659][ T8044] RIP: 0033:0x7fb700fd30b9
[  560.461348][ T8044] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  560.481605][ T8044] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  560.490392][ T8044] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  560.499060][ T8044] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  560.507489][ T8044] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  560.515810][ T8044] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  560.524138][ T8044] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  560.532138][ T8044]  </TASK>
[  560.537120][ T8044] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  560.590377][ T8045] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  560.601108][ T8045] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  560.610384][ T8045] CPU: 1 PID: 8045 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  560.620631][ T8045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  560.630959][ T8045] Call Trace:
[  560.634325][ T8045]  <TASK>
[  560.637262][ T8045]  dump_stack_lvl+0x125/0x1b0
[  560.642095][ T8045]  sysfs_warn_dup+0x7f/0xa0
[  560.646635][ T8045]  sysfs_create_dir_ns+0x249/0x2b0
[  560.651870][ T8045]  ? sysfs_create_mount_point+0xb0/0xb0
[  560.657610][ T8045]  ? spin_bug+0x1d0/0x1d0
[  560.661967][ T8045]  ? net_namespace+0x12/0x40
[  560.666665][ T8045]  ? device_namespace+0x8d/0xc0
[  560.671546][ T8045]  kobject_add_internal+0x2c8/0x970
[  560.676775][ T8045]  kobject_add+0x16f/0x240
[  560.681298][ T8045]  ? kset_create_and_add+0x190/0x190
[  560.686692][ T8045]  ? do_raw_spin_unlock+0x173/0x230
[  560.691986][ T8045]  ? kobject_put+0xbe/0x440
[  560.696519][ T8045]  ? device_add+0xc35/0x1aa0
[  560.701149][ T8045]  device_add+0x289/0x1aa0
[  560.705704][ T8045]  ? device_initialize+0x510/0x510
[  560.711030][ T8045]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  560.717901][ T8045]  ? __init_waitqueue_head+0xca/0x150
[  560.723300][ T8045]  netdev_register_kobject+0x183/0x3f0
[  560.728790][ T8045]  register_netdevice+0xbe6/0x14b0
[  560.734031][ T8045]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  560.740238][ T8045]  ? validate_linkmsg+0x6fc/0x9c0
[  560.745546][ T8045]  br_dev_newlink+0x27/0x110
[  560.750210][ T8045]  ? br_changelink+0x1760/0x1760
[  560.755310][ T8045]  __rtnl_newlink+0x1173/0x1930
[  560.760639][ T8045]  ? rtnl_link_unregister+0x260/0x260
[  560.766226][ T8045]  rtnl_newlink+0x67/0xa0
[  560.770764][ T8045]  ? __rtnl_newlink+0x1930/0x1930
[  560.776247][ T8045]  rtnetlink_rcv_msg+0x3c7/0xe00
[  560.781666][ T8045]  ? rtnl_fill_vf+0x4a0/0x4a0
[  560.786515][ T8045]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  560.793119][ T8045]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  560.799280][ T8045]  netlink_rcv_skb+0x16b/0x440
[  560.804408][ T8045]  ? rtnl_fill_vf+0x4a0/0x4a0
[  560.809365][ T8045]  ? netlink_ack+0x1380/0x1380
[  560.814143][ T8045]  ? lock_sync+0x190/0x190
[  560.818754][ T8045]  ? netlink_deliver_tap+0x1a0/0xd00
[  560.824065][ T8045]  ? _copy_from_iter+0x2c1/0x10f0
[  560.829126][ T8045]  netlink_unicast+0x53b/0x810
[  560.834107][ T8045]  ? netlink_attachskb+0x880/0x880
[  560.839337][ T8045]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  560.845345][ T8045]  ? __phys_addr_symbol+0x30/0x70
[  560.850405][ T8045]  ? __check_object_size+0x323/0x730
[  560.856322][ T8045]  netlink_sendmsg+0x93c/0xe40
[  560.861302][ T8045]  ? netlink_unicast+0x810/0x810
[  560.866425][ T8045]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  560.871819][ T8045]  ? netlink_unicast+0x810/0x810
[  560.876867][ T8045]  __sock_sendmsg+0xd5/0x180
[  560.881693][ T8045]  ____sys_sendmsg+0x6ac/0x940
[  560.886569][ T8045]  ? copy_msghdr_from_user+0x10b/0x160
[  560.892057][ T8045]  ? kernel_sendmsg+0x50/0x50
[  560.896855][ T8045]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  560.902939][ T8045]  ___sys_sendmsg+0x135/0x1d0
[  560.908757][ T8045]  ? do_recvmmsg+0x740/0x740
[  560.913448][ T8045]  ? find_held_lock+0x2d/0x110
[  560.918314][ T8045]  ? preempt_count_sub+0x160/0x160
[  560.923525][ T8045]  ? __fget_light+0x1fc/0x260
[  560.928381][ T8045]  __sys_sendmsg+0x117/0x1e0
[  560.932981][ T8045]  ? __sys_sendmsg_sock+0x30/0x30
[  560.938204][ T8045]  ? syscall_enter_from_user_mode+0x7f/0x120
[  560.944369][ T8045]  do_syscall_64+0x40/0x110
[  560.949073][ T8045]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  560.955351][ T8045] RIP: 0033:0x7fb700fd30b9
[  560.960651][ T8045] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  560.980800][ T8045] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  560.989305][ T8045] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  560.997284][ T8045] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  561.005432][ T8045] RBP: 00000000000889a7 R08: 0000000000000000 R09: 0000000000000006
[  561.013490][ T8045] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  561.021646][ T8045] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  561.030085][ T8045]  </TASK>
[  561.035117][ T8045] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  561.108530][ T8045] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  561.118045][ T8045] CPU: 1 PID: 8045 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  561.128500][ T8045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  561.138708][ T8045] Call Trace:
[  561.142191][ T8045]  <TASK>
[  561.145133][ T8045]  dump_stack_lvl+0x125/0x1b0
[  561.150356][ T8045]  sysfs_warn_dup+0x7f/0xa0
[  561.155314][ T8045]  sysfs_create_dir_ns+0x249/0x2b0
[  561.160528][ T8045]  ? sysfs_create_mount_point+0xb0/0xb0
[  561.166081][ T8045]  ? spin_bug+0x1d0/0x1d0
[  561.170508][ T8045]  ? net_namespace+0x12/0x40
[  561.175280][ T8045]  ? device_namespace+0x8d/0xc0
[  561.180233][ T8045]  kobject_add_internal+0x2c8/0x970
[  561.185761][ T8045]  kobject_add+0x16f/0x240
[  561.190235][ T8045]  ? kset_create_and_add+0x190/0x190
[  561.195542][ T8045]  ? do_raw_spin_unlock+0x173/0x230
[  561.200747][ T8045]  ? kobject_put+0xbe/0x440
[  561.205701][ T8045]  ? device_add+0xc35/0x1aa0
[  561.210325][ T8045]  device_add+0x289/0x1aa0
[  561.215117][ T8045]  ? device_initialize+0x510/0x510
[  561.220546][ T8045]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  561.227696][ T8045]  ? __init_waitqueue_head+0xca/0x150
[  561.233311][ T8045]  netdev_register_kobject+0x183/0x3f0
[  561.238888][ T8045]  register_netdevice+0xbe6/0x14b0
[  561.244399][ T8045]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  561.250475][ T8045]  ? validate_linkmsg+0x6fc/0x9c0
[  561.255689][ T8045]  br_dev_newlink+0x27/0x110
[  561.260394][ T8045]  ? br_changelink+0x1760/0x1760
[  561.265601][ T8045]  __rtnl_newlink+0x1173/0x1930
[  561.270644][ T8045]  ? rtnl_link_unregister+0x260/0x260
[  561.276144][ T8045]  rtnl_newlink+0x67/0xa0
[  561.280489][ T8045]  ? __rtnl_newlink+0x1930/0x1930
[  561.285695][ T8045]  rtnetlink_rcv_msg+0x3c7/0xe00
[  561.290664][ T8045]  ? rtnl_fill_vf+0x4a0/0x4a0
[  561.295355][ T8045]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  561.301529][ T8045]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  561.308222][ T8045]  netlink_rcv_skb+0x16b/0x440
[  561.313155][ T8045]  ? rtnl_fill_vf+0x4a0/0x4a0
[  561.318198][ T8045]  ? netlink_ack+0x1380/0x1380
[  561.323663][ T8045]  ? lock_sync+0x190/0x190
[  561.328223][ T8045]  ? netlink_deliver_tap+0x1a0/0xd00
[  561.334644][ T8045]  ? _copy_from_iter+0x2c1/0x10f0
[  561.340203][ T8045]  netlink_unicast+0x53b/0x810
[  561.345249][ T8045]  ? netlink_attachskb+0x880/0x880
[  561.350451][ T8045]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  561.357234][ T8045]  ? __phys_addr_symbol+0x30/0x70
[  561.362442][ T8045]  ? __check_object_size+0x323/0x730
[  561.367912][ T8045]  netlink_sendmsg+0x93c/0xe40
[  561.372694][ T8045]  ? netlink_unicast+0x810/0x810
[  561.377734][ T8045]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  561.383124][ T8045]  ? netlink_unicast+0x810/0x810
[  561.388174][ T8045]  __sock_sendmsg+0xd5/0x180
[  561.392808][ T8045]  ____sys_sendmsg+0x6ac/0x940
[  561.397678][ T8045]  ? copy_msghdr_from_user+0x10b/0x160
[  561.403156][ T8045]  ? kernel_sendmsg+0x50/0x50
[  561.407846][ T8045]  ? hlock_class+0x4e/0x130
[  561.412353][ T8045]  ? __lock_acquire+0x14e0/0x3b10
[  561.417671][ T8045]  ___sys_sendmsg+0x135/0x1d0
[  561.422672][ T8045]  ? do_recvmmsg+0x740/0x740
[  561.427294][ T8045]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  561.433424][ T8045]  ? find_held_lock+0x2d/0x110
[  561.438250][ T8045]  ? __fget_light+0x1fc/0x260
[  561.443296][ T8045]  __sys_sendmsg+0x117/0x1e0
[  561.447948][ T8045]  ? __sys_sendmsg_sock+0x30/0x30
[  561.452993][ T8045]  ? xfd_validate_state+0x5d/0x180
[  561.458654][ T8045]  ? syscall_enter_from_user_mode+0x7f/0x120
[  561.464687][ T8045]  do_syscall_64+0x40/0x110
[  561.469288][ T8045]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  561.475719][ T8045] RIP: 0033:0x7fb700fd30b9
[  561.480419][ T8045] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  561.500587][ T8045] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  561.509194][ T8045] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  561.517433][ T8045] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  561.526291][ T8045] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  561.534378][ T8045] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  561.542560][ T8045] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  561.550913][ T8045]  </TASK>
[  561.555501][ T8045] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  561.614312][ T8046] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  561.624965][ T8046] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  561.634133][ T8046] CPU: 1 PID: 8046 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  561.644562][ T8046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  561.654822][ T8046] Call Trace:
[  561.658284][ T8046]  <TASK>
[  561.661219][ T8046]  dump_stack_lvl+0x125/0x1b0
[  561.666015][ T8046]  sysfs_warn_dup+0x7f/0xa0
[  561.670548][ T8046]  sysfs_create_dir_ns+0x249/0x2b0
[  561.675781][ T8046]  ? sysfs_create_mount_point+0xb0/0xb0
[  561.681520][ T8046]  ? spin_bug+0x1d0/0x1d0
[  561.685915][ T8046]  ? net_namespace+0x12/0x40
[  561.690782][ T8046]  ? device_namespace+0x8d/0xc0
[  561.695766][ T8046]  kobject_add_internal+0x2c8/0x970
[  561.701245][ T8046]  kobject_add+0x16f/0x240
[  561.705795][ T8046]  ? kset_create_and_add+0x190/0x190
[  561.711099][ T8046]  ? do_raw_spin_unlock+0x173/0x230
[  561.716305][ T8046]  ? kobject_put+0xbe/0x440
[  561.720832][ T8046]  ? device_add+0xc35/0x1aa0
[  561.725732][ T8046]  device_add+0x289/0x1aa0
[  561.730355][ T8046]  ? device_initialize+0x510/0x510
[  561.735650][ T8046]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  561.742690][ T8046]  ? __init_waitqueue_head+0xca/0x150
[  561.748301][ T8046]  netdev_register_kobject+0x183/0x3f0
[  561.753885][ T8046]  register_netdevice+0xbe6/0x14b0
[  561.759739][ T8046]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  561.765927][ T8046]  ? validate_linkmsg+0x6fc/0x9c0
[  561.771167][ T8046]  br_dev_newlink+0x27/0x110
[  561.775781][ T8046]  ? br_changelink+0x1760/0x1760
[  561.780819][ T8046]  __rtnl_newlink+0x1173/0x1930
[  561.785703][ T8046]  ? rtnl_link_unregister+0x260/0x260
[  561.791281][ T8046]  rtnl_newlink+0x67/0xa0
[  561.795711][ T8046]  ? __rtnl_newlink+0x1930/0x1930
[  561.800827][ T8046]  rtnetlink_rcv_msg+0x3c7/0xe00
[  561.805893][ T8046]  ? rtnl_fill_vf+0x4a0/0x4a0
[  561.811142][ T8046]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  561.817260][ T8046]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  561.823349][ T8046]  netlink_rcv_skb+0x16b/0x440
[  561.828312][ T8046]  ? rtnl_fill_vf+0x4a0/0x4a0
[  561.833257][ T8046]  ? netlink_ack+0x1380/0x1380
[  561.838388][ T8046]  ? lock_sync+0x190/0x190
[  561.843007][ T8046]  ? netlink_deliver_tap+0x1a0/0xd00
[  561.848481][ T8046]  ? _copy_from_iter+0x2c1/0x10f0
[  561.853693][ T8046]  netlink_unicast+0x53b/0x810
[  561.858816][ T8046]  ? netlink_attachskb+0x880/0x880
[  561.863936][ T8046]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  561.870019][ T8046]  ? __phys_addr_symbol+0x30/0x70
[  561.875245][ T8046]  ? __check_object_size+0x323/0x730
[  561.880543][ T8046]  netlink_sendmsg+0x93c/0xe40
[  561.885673][ T8046]  ? netlink_unicast+0x810/0x810
[  561.890626][ T8046]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  561.896008][ T8046]  ? netlink_unicast+0x810/0x810
[  561.901165][ T8046]  __sock_sendmsg+0xd5/0x180
[  561.905791][ T8046]  ____sys_sendmsg+0x6ac/0x940
[  561.911028][ T8046]  ? copy_msghdr_from_user+0x10b/0x160
[  561.916621][ T8046]  ? kernel_sendmsg+0x50/0x50
[  561.921505][ T8046]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  561.927665][ T8046]  ___sys_sendmsg+0x135/0x1d0
[  561.932392][ T8046]  ? do_recvmmsg+0x740/0x740
[  561.937188][ T8046]  ? find_held_lock+0x2d/0x110
[  561.941986][ T8046]  ? preempt_count_sub+0x160/0x160
[  561.947568][ T8046]  ? __fget_light+0x1fc/0x260
[  561.952329][ T8046]  __sys_sendmsg+0x117/0x1e0
[  561.957035][ T8046]  ? __sys_sendmsg_sock+0x30/0x30
[  561.962186][ T8046]  ? syscall_enter_from_user_mode+0x7f/0x120
[  561.968193][ T8046]  do_syscall_64+0x40/0x110
[  561.972764][ T8046]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  561.979569][ T8046] RIP: 0033:0x7fb700fd30b9
[  561.984448][ T8046] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  562.005041][ T8046] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  562.013558][ T8046] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  562.021631][ T8046] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  562.029896][ T8046] RBP: 0000000000088da1 R08: 0000000000000000 R09: 0000000000000006
[  562.038042][ T8046] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  562.046206][ T8046] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  562.054391][ T8046]  </TASK>
[  562.057938][ T8046] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  562.115832][ T8046] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  562.125139][ T8046] CPU: 0 PID: 8046 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  562.135412][ T8046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  562.146025][ T8046] Call Trace:
[  562.149344][ T8046]  <TASK>
[  562.152473][ T8046]  dump_stack_lvl+0x125/0x1b0
[  562.157802][ T8046]  sysfs_warn_dup+0x7f/0xa0
[  562.162321][ T8046]  sysfs_create_dir_ns+0x249/0x2b0
[  562.167548][ T8046]  ? sysfs_create_mount_point+0xb0/0xb0
[  562.173206][ T8046]  ? spin_bug+0x1d0/0x1d0
[  562.177733][ T8046]  ? net_namespace+0x12/0x40
[  562.182588][ T8046]  ? device_namespace+0x8d/0xc0
[  562.187496][ T8046]  kobject_add_internal+0x2c8/0x970
[  562.192841][ T8046]  kobject_add+0x16f/0x240
[  562.197885][ T8046]  ? kset_create_and_add+0x190/0x190
[  562.203379][ T8046]  ? do_raw_spin_unlock+0x173/0x230
[  562.208772][ T8046]  ? kobject_put+0xbe/0x440
[  562.213560][ T8046]  ? device_add+0xc35/0x1aa0
[  562.218617][ T8046]  device_add+0x289/0x1aa0
[  562.223310][ T8046]  ? device_initialize+0x510/0x510
[  562.228540][ T8046]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  562.235765][ T8046]  ? __init_waitqueue_head+0xca/0x150
[  562.241258][ T8046]  netdev_register_kobject+0x183/0x3f0
[  562.247003][ T8046]  register_netdevice+0xbe6/0x14b0
[  562.252345][ T8046]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  562.258550][ T8046]  ? validate_linkmsg+0x6fc/0x9c0
[  562.264031][ T8046]  br_dev_newlink+0x27/0x110
[  562.268913][ T8046]  ? br_changelink+0x1760/0x1760
[  562.273958][ T8046]  __rtnl_newlink+0x1173/0x1930
[  562.278998][ T8046]  ? rtnl_link_unregister+0x260/0x260
[  562.284568][ T8046]  rtnl_newlink+0x67/0xa0
[  562.288947][ T8046]  ? __rtnl_newlink+0x1930/0x1930
[  562.294443][ T8046]  rtnetlink_rcv_msg+0x3c7/0xe00
[  562.299422][ T8046]  ? rtnl_fill_vf+0x4a0/0x4a0
[  562.304400][ T8046]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  562.310738][ T8046]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  562.316906][ T8046]  netlink_rcv_skb+0x16b/0x440
[  562.322252][ T8046]  ? rtnl_fill_vf+0x4a0/0x4a0
[  562.327098][ T8046]  ? netlink_ack+0x1380/0x1380
[  562.331977][ T8046]  ? lock_sync+0x190/0x190
[  562.336549][ T8046]  ? netlink_deliver_tap+0x1a0/0xd00
[  562.342124][ T8046]  ? _copy_from_iter+0x2c1/0x10f0
[  562.347261][ T8046]  netlink_unicast+0x53b/0x810
[  562.352055][ T8046]  ? netlink_attachskb+0x880/0x880
[  562.357318][ T8046]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  562.363575][ T8046]  ? __phys_addr_symbol+0x30/0x70
[  562.368668][ T8046]  ? __check_object_size+0x323/0x730
[  562.374150][ T8046]  netlink_sendmsg+0x93c/0xe40
[  562.379288][ T8046]  ? netlink_unicast+0x810/0x810
[  562.384608][ T8046]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  562.390091][ T8046]  ? netlink_unicast+0x810/0x810
[  562.395075][ T8046]  __sock_sendmsg+0xd5/0x180
[  562.399763][ T8046]  ____sys_sendmsg+0x6ac/0x940
[  562.404533][ T8046]  ? copy_msghdr_from_user+0x10b/0x160
[  562.410078][ T8046]  ? kernel_sendmsg+0x50/0x50
[  562.414845][ T8046]  ? hlock_class+0x4e/0x130
[  562.419348][ T8046]  ? __lock_acquire+0x14e0/0x3b10
[  562.424556][ T8046]  ___sys_sendmsg+0x135/0x1d0
[  562.429681][ T8046]  ? do_recvmmsg+0x740/0x740
[  562.434286][ T8046]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  562.440290][ T8046]  ? find_held_lock+0x2d/0x110
[  562.445190][ T8046]  ? __fget_light+0x1fc/0x260
[  562.449883][ T8046]  __sys_sendmsg+0x117/0x1e0
[  562.454667][ T8046]  ? __sys_sendmsg_sock+0x30/0x30
[  562.459723][ T8046]  ? __do_sys_rseq+0x750/0x750
[  562.464776][ T8046]  ? syscall_enter_from_user_mode+0x7f/0x120
[  562.470786][ T8046]  do_syscall_64+0x40/0x110
[  562.475567][ T8046]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  562.481473][ T8046] RIP: 0033:0x7fb700fd30b9
[  562.485884][ T8046] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  562.505668][ T8046] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  562.514254][ T8046] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  562.522231][ T8046] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  562.530613][ T8046] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  562.539113][ T8046] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  562.547091][ T8046] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  562.555197][ T8046]  </TASK>
[  562.559159][ T8046] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  562.623194][ T8047] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  562.633631][ T8047] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  562.643947][ T8047] CPU: 0 PID: 8047 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  562.654453][ T8047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  562.664614][ T8047] Call Trace:
[  562.668193][ T8047]  <TASK>
[  562.671136][ T8047]  dump_stack_lvl+0x125/0x1b0
[  562.676197][ T8047]  sysfs_warn_dup+0x7f/0xa0
[  562.680804][ T8047]  sysfs_create_dir_ns+0x249/0x2b0
[  562.686191][ T8047]  ? sysfs_create_mount_point+0xb0/0xb0
[  562.691753][ T8047]  ? spin_bug+0x1d0/0x1d0
[  562.696318][ T8047]  ? net_namespace+0x12/0x40
[  562.700926][ T8047]  ? device_namespace+0x8d/0xc0
[  562.706226][ T8047]  kobject_add_internal+0x2c8/0x970
[  562.711528][ T8047]  kobject_add+0x16f/0x240
[  562.716046][ T8047]  ? kset_create_and_add+0x190/0x190
[  562.721345][ T8047]  ? do_raw_spin_unlock+0x173/0x230
[  562.726545][ T8047]  ? kobject_put+0xbe/0x440
[  562.731148][ T8047]  ? device_add+0xc35/0x1aa0
[  562.735860][ T8047]  device_add+0x289/0x1aa0
[  562.740633][ T8047]  ? device_initialize+0x510/0x510
[  562.745757][ T8047]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  562.752669][ T8047]  ? __init_waitqueue_head+0xca/0x150
[  562.758346][ T8047]  netdev_register_kobject+0x183/0x3f0
[  562.764098][ T8047]  register_netdevice+0xbe6/0x14b0
[  562.770977][ T8047]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  562.777083][ T8047]  ? validate_linkmsg+0x6fc/0x9c0
[  562.782202][ T8047]  br_dev_newlink+0x27/0x110
[  562.786885][ T8047]  ? br_changelink+0x1760/0x1760
[  562.792065][ T8047]  __rtnl_newlink+0x1173/0x1930
[  562.797057][ T8047]  ? rtnl_link_unregister+0x260/0x260
[  562.802462][ T8047]  rtnl_newlink+0x67/0xa0
[  562.806812][ T8047]  ? __rtnl_newlink+0x1930/0x1930
[  562.811999][ T8047]  rtnetlink_rcv_msg+0x3c7/0xe00
[  562.817743][ T8047]  ? rtnl_fill_vf+0x4a0/0x4a0
[  562.823069][ T8047]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  562.830159][ T8047]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  562.836818][ T8047]  netlink_rcv_skb+0x16b/0x440
[  562.842197][ T8047]  ? rtnl_fill_vf+0x4a0/0x4a0
[  562.847509][ T8047]  ? netlink_ack+0x1380/0x1380
[  562.852644][ T8047]  ? lock_sync+0x190/0x190
[  562.857146][ T8047]  ? netlink_deliver_tap+0x1a0/0xd00
[  562.862972][ T8047]  ? _copy_from_iter+0x2c1/0x10f0
[  562.868209][ T8047]  netlink_unicast+0x53b/0x810
[  562.874481][ T8047]  ? netlink_attachskb+0x880/0x880
[  562.880239][ T8047]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  562.886246][ T8047]  ? __phys_addr_symbol+0x30/0x70
[  562.891393][ T8047]  ? __check_object_size+0x323/0x730
[  562.896964][ T8047]  netlink_sendmsg+0x93c/0xe40
[  562.901846][ T8047]  ? netlink_unicast+0x810/0x810
[  562.908083][ T8047]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  562.913409][ T8047]  ? netlink_unicast+0x810/0x810
[  562.918819][ T8047]  __sock_sendmsg+0xd5/0x180
[  562.923800][ T8047]  ____sys_sendmsg+0x6ac/0x940
[  562.928837][ T8047]  ? copy_msghdr_from_user+0x10b/0x160
[  562.934323][ T8047]  ? kernel_sendmsg+0x50/0x50
[  562.939371][ T8047]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  562.945802][ T8047]  ___sys_sendmsg+0x135/0x1d0
[  562.951014][ T8047]  ? do_recvmmsg+0x740/0x740
[  562.956193][ T8047]  ? find_held_lock+0x2d/0x110
[  562.961034][ T8047]  ? preempt_count_sub+0x160/0x160
[  562.966578][ T8047]  ? __fget_light+0x1fc/0x260
[  562.972162][ T8047]  __sys_sendmsg+0x117/0x1e0
[  562.977328][ T8047]  ? __sys_sendmsg_sock+0x30/0x30
[  562.984569][ T8047]  ? syscall_enter_from_user_mode+0x7f/0x120
[  562.991035][ T8047]  do_syscall_64+0x40/0x110
[  562.996235][ T8047]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  563.002278][ T8047] RIP: 0033:0x7fb700fd30b9
[  563.007131][ T8047] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  563.027460][ T8047] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  563.037106][ T8047] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  563.045117][ T8047] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  563.053177][ T8047] RBP: 00000000000891a1 R08: 0000000000000000 R09: 0000000000000006
[  563.061253][ T8047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  563.069417][ T8047] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  563.077517][ T8047]  </TASK>
[  563.081197][ T8047] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  563.135963][ T8047] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  563.146434][ T8047] CPU: 0 PID: 8047 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  563.156866][ T8047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  563.167786][ T8047] Call Trace:
[  563.171379][ T8047]  <TASK>
[  563.174530][ T8047]  dump_stack_lvl+0x125/0x1b0
[  563.179515][ T8047]  sysfs_warn_dup+0x7f/0xa0
[  563.185620][ T8047]  sysfs_create_dir_ns+0x249/0x2b0
[  563.191966][ T8047]  ? sysfs_create_mount_point+0xb0/0xb0
[  563.198165][ T8047]  ? spin_bug+0x1d0/0x1d0
[  563.202733][ T8047]  ? net_namespace+0x12/0x40
[  563.207459][ T8047]  ? device_namespace+0x8d/0xc0
[  563.212450][ T8047]  kobject_add_internal+0x2c8/0x970
[  563.217950][ T8047]  kobject_add+0x16f/0x240
[  563.222815][ T8047]  ? kset_create_and_add+0x190/0x190
[  563.228419][ T8047]  ? do_raw_spin_unlock+0x173/0x230
[  563.233819][ T8047]  ? kobject_put+0xbe/0x440
[  563.238629][ T8047]  ? device_add+0xc35/0x1aa0
[  563.243287][ T8047]  device_add+0x289/0x1aa0
[  563.248054][ T8047]  ? device_initialize+0x510/0x510
[  563.253182][ T8047]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  563.260315][ T8047]  ? __init_waitqueue_head+0xca/0x150
[  563.266346][ T8047]  netdev_register_kobject+0x183/0x3f0
[  563.272016][ T8047]  register_netdevice+0xbe6/0x14b0
[  563.277185][ T8047]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  563.283266][ T8047]  ? validate_linkmsg+0x6fc/0x9c0
[  563.288389][ T8047]  br_dev_newlink+0x27/0x110
[  563.293169][ T8047]  ? br_changelink+0x1760/0x1760
[  563.298403][ T8047]  __rtnl_newlink+0x1173/0x1930
[  563.303436][ T8047]  ? rtnl_link_unregister+0x260/0x260
[  563.308952][ T8047]  rtnl_newlink+0x67/0xa0
[  563.313321][ T8047]  ? __rtnl_newlink+0x1930/0x1930
[  563.318551][ T8047]  rtnetlink_rcv_msg+0x3c7/0xe00
[  563.323599][ T8047]  ? rtnl_fill_vf+0x4a0/0x4a0
[  563.328669][ T8047]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  563.335426][ T8047]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  563.341700][ T8047]  netlink_rcv_skb+0x16b/0x440
[  563.346675][ T8047]  ? rtnl_fill_vf+0x4a0/0x4a0
[  563.351380][ T8047]  ? netlink_ack+0x1380/0x1380
[  563.356277][ T8047]  ? lock_sync+0x190/0x190
[  563.360945][ T8047]  ? netlink_deliver_tap+0x1a0/0xd00
[  563.366448][ T8047]  ? _copy_from_iter+0x2c1/0x10f0
[  563.371503][ T8047]  netlink_unicast+0x53b/0x810
[  563.376393][ T8047]  ? netlink_attachskb+0x880/0x880
[  563.381548][ T8047]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  563.387605][ T8047]  ? __phys_addr_symbol+0x30/0x70
[  563.392823][ T8047]  ? __check_object_size+0x323/0x730
[  563.398298][ T8047]  netlink_sendmsg+0x93c/0xe40
[  563.403196][ T8047]  ? netlink_unicast+0x810/0x810
[  563.408160][ T8047]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  563.413562][ T8047]  ? netlink_unicast+0x810/0x810
[  563.418537][ T8047]  __sock_sendmsg+0xd5/0x180
[  563.423603][ T8047]  ____sys_sendmsg+0x6ac/0x940
[  563.428420][ T8047]  ? copy_msghdr_from_user+0x10b/0x160
[  563.434115][ T8047]  ? kernel_sendmsg+0x50/0x50
[  563.438991][ T8047]  ? hlock_class+0x4e/0x130
[  563.443684][ T8047]  ? __lock_acquire+0x14e0/0x3b10
[  563.448905][ T8047]  ___sys_sendmsg+0x135/0x1d0
[  563.453813][ T8047]  ? do_recvmmsg+0x740/0x740
[  563.458807][ T8047]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  563.465029][ T8047]  ? find_held_lock+0x2d/0x110
[  563.470143][ T8047]  ? __fget_light+0x1fc/0x260
[  563.474853][ T8047]  __sys_sendmsg+0x117/0x1e0
[  563.479580][ T8047]  ? __sys_sendmsg_sock+0x30/0x30
[  563.484712][ T8047]  ? __do_sys_rseq+0x750/0x750
[  563.489964][ T8047]  ? syscall_enter_from_user_mode+0x7f/0x120
[  563.496239][ T8047]  do_syscall_64+0x40/0x110
[  563.500908][ T8047]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  563.507742][ T8047] RIP: 0033:0x7fb700fd30b9
[  563.512787][ T8047] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  563.532758][ T8047] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  563.541444][ T8047] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  563.550050][ T8047] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  563.559648][ T8047] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  563.568312][ T8047] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  563.576559][ T8047] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  563.585017][ T8047]  </TASK>
[  563.613099][ T1229] ieee802154 phy0 wpan0: encryption failed: -22
[  563.613875][ T8047] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  563.620356][ T1229] ieee802154 phy1 wpan1: encryption failed: -22
[  563.693557][ T8048] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  563.704285][ T8048] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  563.715891][ T8048] CPU: 1 PID: 8048 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  563.727292][ T8048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  563.738154][ T8048] Call Trace:
[  563.741969][ T8048]  <TASK>
[  563.745010][ T8048]  dump_stack_lvl+0x125/0x1b0
[  563.749980][ T8048]  sysfs_warn_dup+0x7f/0xa0
[  563.754582][ T8048]  sysfs_create_dir_ns+0x249/0x2b0
[  563.759725][ T8048]  ? sysfs_create_mount_point+0xb0/0xb0
[  563.765365][ T8048]  ? spin_bug+0x1d0/0x1d0
[  563.769910][ T8048]  ? net_namespace+0x12/0x40
[  563.774624][ T8048]  ? device_namespace+0x8d/0xc0
[  563.779975][ T8048]  kobject_add_internal+0x2c8/0x970
[  563.785473][ T8048]  kobject_add+0x16f/0x240
[  563.790124][ T8048]  ? kset_create_and_add+0x190/0x190
[  563.795545][ T8048]  ? do_raw_spin_unlock+0x173/0x230
[  563.800874][ T8048]  ? kobject_put+0xbe/0x440
[  563.805403][ T8048]  ? device_add+0xc35/0x1aa0
[  563.810289][ T8048]  device_add+0x289/0x1aa0
[  563.814840][ T8048]  ? device_initialize+0x510/0x510
[  563.820267][ T8048]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  563.827864][ T8048]  ? __init_waitqueue_head+0xca/0x150
[  563.833370][ T8048]  netdev_register_kobject+0x183/0x3f0
[  563.839026][ T8048]  register_netdevice+0xbe6/0x14b0
[  563.844452][ T8048]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  563.850830][ T8048]  ? validate_linkmsg+0x6fc/0x9c0
[  563.856077][ T8048]  br_dev_newlink+0x27/0x110
[  563.860825][ T8048]  ? br_changelink+0x1760/0x1760
[  563.865789][ T8048]  __rtnl_newlink+0x1173/0x1930
[  563.870851][ T8048]  ? rtnl_link_unregister+0x260/0x260
[  563.876493][ T8048]  rtnl_newlink+0x67/0xa0
[  563.881963][ T8048]  ? __rtnl_newlink+0x1930/0x1930
[  563.887410][ T8048]  rtnetlink_rcv_msg+0x3c7/0xe00
[  563.892539][ T8048]  ? rtnl_fill_vf+0x4a0/0x4a0
[  563.897230][ T8048]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  563.903884][ T8048]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  563.911141][ T8048]  netlink_rcv_skb+0x16b/0x440
[  563.916289][ T8048]  ? rtnl_fill_vf+0x4a0/0x4a0
[  563.921000][ T8048]  ? netlink_ack+0x1380/0x1380
[  563.925891][ T8048]  ? lock_sync+0x190/0x190
[  563.931221][ T8048]  ? netlink_deliver_tap+0x1a0/0xd00
[  563.936928][ T8048]  ? _copy_from_iter+0x2c1/0x10f0
[  563.942421][ T8048]  netlink_unicast+0x53b/0x810
[  563.947352][ T8048]  ? netlink_attachskb+0x880/0x880
[  563.953387][ T8048]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  563.959903][ T8048]  ? __phys_addr_symbol+0x30/0x70
[  563.965375][ T8048]  ? __check_object_size+0x323/0x730
[  563.971158][ T8048]  netlink_sendmsg+0x93c/0xe40
[  563.976155][ T8048]  ? netlink_unicast+0x810/0x810
[  563.981297][ T8048]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  563.987078][ T8048]  ? netlink_unicast+0x810/0x810
[  563.992227][ T8048]  __sock_sendmsg+0xd5/0x180
[  563.997009][ T8048]  ____sys_sendmsg+0x6ac/0x940
[  564.001780][ T8048]  ? copy_msghdr_from_user+0x10b/0x160
[  564.007252][ T8048]  ? kernel_sendmsg+0x50/0x50
[  564.012125][ T8048]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  564.018239][ T8048]  ___sys_sendmsg+0x135/0x1d0
[  564.023143][ T8048]  ? do_recvmmsg+0x740/0x740
[  564.028119][ T8048]  ? find_held_lock+0x2d/0x110
[  564.033155][ T8048]  ? preempt_count_sub+0x160/0x160
[  564.038617][ T8048]  ? __fget_light+0x1fc/0x260
[  564.043670][ T8048]  __sys_sendmsg+0x117/0x1e0
[  564.048543][ T8048]  ? __sys_sendmsg_sock+0x30/0x30
[  564.053851][ T8048]  ? xfd_validate_state+0x5d/0x180
[  564.059455][ T8048]  ? syscall_enter_from_user_mode+0x7f/0x120
[  564.065628][ T8048]  do_syscall_64+0x40/0x110
[  564.070160][ T8048]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  564.076080][ T8048] RIP: 0033:0x7fb700fd30b9
[  564.080586][ T8048] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  564.100759][ T8048] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  564.109279][ T8048] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  564.117558][ T8048] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  564.126511][ T8048] RBP: 0000000000089592 R08: 0000000000000000 R09: 0000000000000006
[  564.134670][ T8048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  564.144217][ T8048] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  564.154056][ T8048]  </TASK>
[  564.157583][ T8048] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  564.216555][ T8048] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  564.227674][ T8048] CPU: 0 PID: 8048 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  564.238184][ T8048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  564.248798][ T8048] Call Trace:
[  564.252365][ T8048]  <TASK>
[  564.255490][ T8048]  dump_stack_lvl+0x125/0x1b0
[  564.260719][ T8048]  sysfs_warn_dup+0x7f/0xa0
[  564.265354][ T8048]  sysfs_create_dir_ns+0x249/0x2b0
[  564.270969][ T8048]  ? sysfs_create_mount_point+0xb0/0xb0
[  564.276533][ T8048]  ? spin_bug+0x1d0/0x1d0
[  564.281059][ T8048]  ? net_namespace+0x12/0x40
[  564.285677][ T8048]  ? device_namespace+0x8d/0xc0
[  564.290715][ T8048]  kobject_add_internal+0x2c8/0x970
[  564.296198][ T8048]  kobject_add+0x16f/0x240
[  564.300637][ T8048]  ? kset_create_and_add+0x190/0x190
[  564.306025][ T8048]  ? do_raw_spin_unlock+0x173/0x230
[  564.311589][ T8048]  ? kobject_put+0xbe/0x440
[  564.316285][ T8048]  ? device_add+0xc35/0x1aa0
[  564.321332][ T8048]  device_add+0x289/0x1aa0
[  564.326511][ T8048]  ? device_initialize+0x510/0x510
[  564.332335][ T8048]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  564.339845][ T8048]  ? __init_waitqueue_head+0xca/0x150
[  564.345680][ T8048]  netdev_register_kobject+0x183/0x3f0
[  564.351434][ T8048]  register_netdevice+0xbe6/0x14b0
[  564.356820][ T8048]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  564.362981][ T8048]  ? validate_linkmsg+0x6fc/0x9c0
[  564.368187][ T8048]  br_dev_newlink+0x27/0x110
[  564.373016][ T8048]  ? br_changelink+0x1760/0x1760
[  564.378101][ T8048]  __rtnl_newlink+0x1173/0x1930
[  564.383679][ T8048]  ? rtnl_link_unregister+0x260/0x260
[  564.389617][ T8048]  rtnl_newlink+0x67/0xa0
[  564.394075][ T8048]  ? __rtnl_newlink+0x1930/0x1930
[  564.399386][ T8048]  rtnetlink_rcv_msg+0x3c7/0xe00
[  564.404448][ T8048]  ? rtnl_fill_vf+0x4a0/0x4a0
[  564.409424][ T8048]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  564.415902][ T8048]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  564.422022][ T8048]  netlink_rcv_skb+0x16b/0x440
[  564.426998][ T8048]  ? rtnl_fill_vf+0x4a0/0x4a0
[  564.431705][ T8048]  ? netlink_ack+0x1380/0x1380
[  564.436642][ T8048]  ? lock_sync+0x190/0x190
[  564.441523][ T8048]  ? netlink_deliver_tap+0x1a0/0xd00
[  564.449093][ T8048]  ? _copy_from_iter+0x2c1/0x10f0
[  564.455365][ T8048]  netlink_unicast+0x53b/0x810
[  564.460440][ T8048]  ? netlink_attachskb+0x880/0x880
[  564.465842][ T8048]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  564.472391][ T8048]  ? __phys_addr_symbol+0x30/0x70
[  564.477706][ T8048]  ? __check_object_size+0x323/0x730
[  564.483392][ T8048]  netlink_sendmsg+0x93c/0xe40
[  564.488515][ T8048]  ? netlink_unicast+0x810/0x810
[  564.493673][ T8048]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  564.499333][ T8048]  ? netlink_unicast+0x810/0x810
[  564.504677][ T8048]  __sock_sendmsg+0xd5/0x180
[  564.510013][ T8048]  ____sys_sendmsg+0x6ac/0x940
[  564.515012][ T8048]  ? copy_msghdr_from_user+0x10b/0x160
[  564.520507][ T8048]  ? kernel_sendmsg+0x50/0x50
[  564.525461][ T8048]  ? hlock_class+0x4e/0x130
[  564.530211][ T8048]  ? __lock_acquire+0x14e0/0x3b10
[  564.535608][ T8048]  ___sys_sendmsg+0x135/0x1d0
[  564.540691][ T8048]  ? do_recvmmsg+0x740/0x740
[  564.545870][ T8048]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  564.552329][ T8048]  ? find_held_lock+0x2d/0x110
[  564.557356][ T8048]  ? __fget_light+0x1fc/0x260
[  564.562773][ T8048]  __sys_sendmsg+0x117/0x1e0
[  564.567717][ T8048]  ? __sys_sendmsg_sock+0x30/0x30
[  564.573097][ T8048]  ? __do_sys_rseq+0x750/0x750
[  564.578074][ T8048]  ? syscall_enter_from_user_mode+0x7f/0x120
[  564.584602][ T8048]  do_syscall_64+0x40/0x110
[  564.589297][ T8048]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  564.595628][ T8048] RIP: 0033:0x7fb700fd30b9
[  564.600434][ T8048] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  564.621381][ T8048] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  564.629872][ T8048] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  564.638916][ T8048] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  564.647182][ T8048] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  564.655668][ T8048] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  564.664020][ T8048] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  564.672703][ T8048]  </TASK>
[  564.676311][ T8048] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  564.722442][ T8049] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  564.733543][ T8049] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  564.744082][ T8049] CPU: 0 PID: 8049 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  564.755085][ T8049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  564.766364][ T8049] Call Trace:
[  564.769912][ T8049]  <TASK>
[  564.772936][ T8049]  dump_stack_lvl+0x125/0x1b0
[  564.777988][ T8049]  sysfs_warn_dup+0x7f/0xa0
[  564.783027][ T8049]  sysfs_create_dir_ns+0x249/0x2b0
[  564.788629][ T8049]  ? sysfs_create_mount_point+0xb0/0xb0
[  564.794193][ T8049]  ? spin_bug+0x1d0/0x1d0
[  564.798834][ T8049]  ? net_namespace+0x12/0x40
[  564.803722][ T8049]  ? device_namespace+0x8d/0xc0
[  564.808782][ T8049]  kobject_add_internal+0x2c8/0x970
[  564.814194][ T8049]  kobject_add+0x16f/0x240
[  564.818802][ T8049]  ? kset_create_and_add+0x190/0x190
[  564.824544][ T8049]  ? do_raw_spin_unlock+0x173/0x230
[  564.829938][ T8049]  ? kobject_put+0xbe/0x440
[  564.834456][ T8049]  ? device_add+0xc35/0x1aa0
[  564.839078][ T8049]  device_add+0x289/0x1aa0
[  564.843566][ T8049]  ? device_initialize+0x510/0x510
[  564.849075][ T8049]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  564.856489][ T8049]  ? __init_waitqueue_head+0xca/0x150
[  564.862115][ T8049]  netdev_register_kobject+0x183/0x3f0
[  564.869015][ T8049]  register_netdevice+0xbe6/0x14b0
[  564.874327][ T8049]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  564.880417][ T8049]  ? validate_linkmsg+0x6fc/0x9c0
[  564.885842][ T8049]  br_dev_newlink+0x27/0x110
[  564.890456][ T8049]  ? br_changelink+0x1760/0x1760
[  564.895400][ T8049]  __rtnl_newlink+0x1173/0x1930
[  564.900288][ T8049]  ? rtnl_link_unregister+0x260/0x260
[  564.905782][ T8049]  rtnl_newlink+0x67/0xa0
[  564.910294][ T8049]  ? __rtnl_newlink+0x1930/0x1930
[  564.915767][ T8049]  rtnetlink_rcv_msg+0x3c7/0xe00
[  564.920911][ T8049]  ? rtnl_fill_vf+0x4a0/0x4a0
[  564.926317][ T8049]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  564.932673][ T8049]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  564.939028][ T8049]  netlink_rcv_skb+0x16b/0x440
[  564.943991][ T8049]  ? rtnl_fill_vf+0x4a0/0x4a0
[  564.948763][ T8049]  ? netlink_ack+0x1380/0x1380
[  564.953805][ T8049]  ? lock_sync+0x190/0x190
[  564.958332][ T8049]  ? netlink_deliver_tap+0x1a0/0xd00
[  564.963625][ T8049]  ? _copy_from_iter+0x2c1/0x10f0
[  564.968753][ T8049]  netlink_unicast+0x53b/0x810
[  564.973794][ T8049]  ? netlink_attachskb+0x880/0x880
[  564.979007][ T8049]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  564.985091][ T8049]  ? __phys_addr_symbol+0x30/0x70
[  564.990130][ T8049]  ? __check_object_size+0x323/0x730
[  564.995430][ T8049]  netlink_sendmsg+0x93c/0xe40
[  565.000298][ T8049]  ? netlink_unicast+0x810/0x810
[  565.005425][ T8049]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  565.010917][ T8049]  ? netlink_unicast+0x810/0x810
[  565.015885][ T8049]  __sock_sendmsg+0xd5/0x180
[  565.020605][ T8049]  ____sys_sendmsg+0x6ac/0x940
[  565.025631][ T8049]  ? copy_msghdr_from_user+0x10b/0x160
[  565.031141][ T8049]  ? kernel_sendmsg+0x50/0x50
[  565.035847][ T8049]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  565.041877][ T8049]  ___sys_sendmsg+0x135/0x1d0
[  565.046788][ T8049]  ? do_recvmmsg+0x740/0x740
[  565.051759][ T8049]  ? find_held_lock+0x2d/0x110
[  565.056811][ T8049]  ? preempt_count_sub+0x160/0x160
[  565.062115][ T8049]  ? __fget_light+0x1fc/0x260
[  565.066887][ T8049]  __sys_sendmsg+0x117/0x1e0
[  565.071841][ T8049]  ? __sys_sendmsg_sock+0x30/0x30
[  565.076887][ T8049]  ? xfd_validate_state+0x5d/0x180
[  565.082286][ T8049]  ? syscall_enter_from_user_mode+0x7f/0x120
[  565.088553][ T8049]  do_syscall_64+0x40/0x110
[  565.093083][ T8049]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  565.099358][ T8049] RIP: 0033:0x7fb700fd30b9
[  565.104055][ T8049] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  565.124737][ T8049] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  565.133688][ T8049] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  565.141865][ T8049] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  565.150900][ T8049] RBP: 00000000000899c0 R08: 0000000000000000 R09: 0000000000000006
[  565.158987][ T8049] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  565.167591][ T8049] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  565.175779][ T8049]  </TASK>
[  565.180674][ T8049] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  565.246128][ T8049] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  565.255849][ T8049] CPU: 0 PID: 8049 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  565.266236][ T8049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  565.276563][ T8049] Call Trace:
[  565.280045][ T8049]  <TASK>
[  565.283149][ T8049]  dump_stack_lvl+0x125/0x1b0
[  565.288449][ T8049]  sysfs_warn_dup+0x7f/0xa0
[  565.293127][ T8049]  sysfs_create_dir_ns+0x249/0x2b0
[  565.298257][ T8049]  ? sysfs_create_mount_point+0xb0/0xb0
[  565.303986][ T8049]  ? spin_bug+0x1d0/0x1d0
[  565.309118][ T8049]  ? net_namespace+0x12/0x40
[  565.314021][ T8049]  ? device_namespace+0x8d/0xc0
[  565.318902][ T8049]  kobject_add_internal+0x2c8/0x970
[  565.324260][ T8049]  kobject_add+0x16f/0x240
[  565.329141][ T8049]  ? kset_create_and_add+0x190/0x190
[  565.334785][ T8049]  ? do_raw_spin_unlock+0x173/0x230
[  565.339988][ T8049]  ? kobject_put+0xbe/0x440
[  565.344695][ T8049]  ? device_add+0xc35/0x1aa0
[  565.349466][ T8049]  device_add+0x289/0x1aa0
[  565.354344][ T8049]  ? device_initialize+0x510/0x510
[  565.360118][ T8049]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  565.367122][ T8049]  ? __init_waitqueue_head+0xca/0x150
[  565.372823][ T8049]  netdev_register_kobject+0x183/0x3f0
[  565.378578][ T8049]  register_netdevice+0xbe6/0x14b0
[  565.383793][ T8049]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  565.390049][ T8049]  ? validate_linkmsg+0x6fc/0x9c0
[  565.395179][ T8049]  br_dev_newlink+0x27/0x110
[  565.399976][ T8049]  ? br_changelink+0x1760/0x1760
[  565.405039][ T8049]  __rtnl_newlink+0x1173/0x1930
[  565.409941][ T8049]  ? rtnl_link_unregister+0x260/0x260
[  565.415778][ T8049]  rtnl_newlink+0x67/0xa0
[  565.420324][ T8049]  ? __rtnl_newlink+0x1930/0x1930
[  565.425482][ T8049]  rtnetlink_rcv_msg+0x3c7/0xe00
[  565.430709][ T8049]  ? rtnl_fill_vf+0x4a0/0x4a0
[  565.435580][ T8049]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  565.441696][ T8049]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  565.447803][ T8049]  netlink_rcv_skb+0x16b/0x440
[  565.452852][ T8049]  ? rtnl_fill_vf+0x4a0/0x4a0
[  565.457984][ T8049]  ? netlink_ack+0x1380/0x1380
[  565.462943][ T8049]  ? lock_sync+0x190/0x190
[  565.468174][ T8049]  ? netlink_deliver_tap+0x1a0/0xd00
[  565.473731][ T8049]  ? _copy_from_iter+0x2c1/0x10f0
[  565.478953][ T8049]  netlink_unicast+0x53b/0x810
[  565.483880][ T8049]  ? netlink_attachskb+0x880/0x880
[  565.489197][ T8049]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  565.495273][ T8049]  ? __phys_addr_symbol+0x30/0x70
[  565.500408][ T8049]  ? __check_object_size+0x323/0x730
[  565.507006][ T8049]  netlink_sendmsg+0x93c/0xe40
[  565.512000][ T8049]  ? netlink_unicast+0x810/0x810
[  565.517424][ T8049]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  565.523436][ T8049]  ? netlink_unicast+0x810/0x810
[  565.528963][ T8049]  __sock_sendmsg+0xd5/0x180
[  565.533948][ T8049]  ____sys_sendmsg+0x6ac/0x940
[  565.538727][ T8049]  ? copy_msghdr_from_user+0x10b/0x160
[  565.544551][ T8049]  ? kernel_sendmsg+0x50/0x50
[  565.549474][ T8049]  ___sys_sendmsg+0x135/0x1d0
[  565.554690][ T8049]  ? do_recvmmsg+0x740/0x740
[  565.559760][ T8049]  ? find_held_lock+0x2d/0x110
[  565.565505][ T8049]  ? preempt_count_sub+0x160/0x160
[  565.571000][ T8049]  ? __fget_light+0x1fc/0x260
[  565.575688][ T8049]  __sys_sendmsg+0x117/0x1e0
[  565.580485][ T8049]  ? __sys_sendmsg_sock+0x30/0x30
[  565.585721][ T8049]  ? syscall_enter_from_user_mode+0x7f/0x120
[  565.592174][ T8049]  do_syscall_64+0x40/0x110
[  565.596972][ T8049]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  565.603514][ T8049] RIP: 0033:0x7fb700fd30b9
[  565.608145][ T8049] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  565.628223][ T8049] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  565.637574][ T8049] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  565.645700][ T8049] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  565.653980][ T8049] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  565.662271][ T8049] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  565.670542][ T8049] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  565.678573][ T8049]  </TASK>
[  565.682142][ T8049] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  565.730899][ T8050] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  565.742056][ T8050] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  565.751731][ T8050] CPU: 1 PID: 8050 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  565.762695][ T8050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  565.774422][ T8050] Call Trace:
[  565.777724][ T8050]  <TASK>
[  565.780838][ T8050]  dump_stack_lvl+0x125/0x1b0
[  565.785667][ T8050]  sysfs_warn_dup+0x7f/0xa0
[  565.790364][ T8050]  sysfs_create_dir_ns+0x249/0x2b0
[  565.795685][ T8050]  ? sysfs_create_mount_point+0xb0/0xb0
[  565.801667][ T8050]  ? spin_bug+0x1d0/0x1d0
[  565.806292][ T8050]  ? net_namespace+0x12/0x40
[  565.811039][ T8050]  ? device_namespace+0x8d/0xc0
[  565.816204][ T8050]  kobject_add_internal+0x2c8/0x970
[  565.821977][ T8050]  kobject_add+0x16f/0x240
[  565.826697][ T8050]  ? kset_create_and_add+0x190/0x190
[  565.832275][ T8050]  ? do_raw_spin_unlock+0x173/0x230
[  565.838039][ T8050]  ? kobject_put+0xbe/0x440
[  565.842897][ T8050]  ? device_add+0xc35/0x1aa0
[  565.847648][ T8050]  device_add+0x289/0x1aa0
[  565.852107][ T8050]  ? device_initialize+0x510/0x510
[  565.857427][ T8050]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  565.864301][ T8050]  ? __init_waitqueue_head+0xca/0x150
[  565.869962][ T8050]  netdev_register_kobject+0x183/0x3f0
[  565.875830][ T8050]  register_netdevice+0xbe6/0x14b0
[  565.881488][ T8050]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  565.888020][ T8050]  ? validate_linkmsg+0x6fc/0x9c0
[  565.893160][ T8050]  br_dev_newlink+0x27/0x110
[  565.897859][ T8050]  ? br_changelink+0x1760/0x1760
[  565.903030][ T8050]  __rtnl_newlink+0x1173/0x1930
[  565.907934][ T8050]  ? rtnl_link_unregister+0x260/0x260
[  565.913506][ T8050]  rtnl_newlink+0x67/0xa0
[  565.918468][ T8050]  ? __rtnl_newlink+0x1930/0x1930
[  565.923700][ T8050]  rtnetlink_rcv_msg+0x3c7/0xe00
[  565.928973][ T8050]  ? rtnl_fill_vf+0x4a0/0x4a0
[  565.933883][ T8050]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  565.939889][ T8050]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  565.946206][ T8050]  netlink_rcv_skb+0x16b/0x440
[  565.951102][ T8050]  ? rtnl_fill_vf+0x4a0/0x4a0
[  565.955857][ T8050]  ? netlink_ack+0x1380/0x1380
[  565.960909][ T8050]  ? lock_sync+0x190/0x190
[  565.965472][ T8050]  ? netlink_deliver_tap+0x1a0/0xd00
[  565.970837][ T8050]  ? _copy_from_iter+0x2c1/0x10f0
[  565.975894][ T8050]  netlink_unicast+0x53b/0x810
[  565.980704][ T8050]  ? netlink_attachskb+0x880/0x880
[  565.986061][ T8050]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  565.992165][ T8050]  ? __phys_addr_symbol+0x30/0x70
[  565.997308][ T8050]  ? __check_object_size+0x323/0x730
[  566.002633][ T8050]  netlink_sendmsg+0x93c/0xe40
[  566.007692][ T8050]  ? netlink_unicast+0x810/0x810
[  566.012764][ T8050]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  566.018117][ T8050]  ? netlink_unicast+0x810/0x810
[  566.023349][ T8050]  __sock_sendmsg+0xd5/0x180
[  566.028048][ T8050]  ____sys_sendmsg+0x6ac/0x940
[  566.033181][ T8050]  ? copy_msghdr_from_user+0x10b/0x160
[  566.038842][ T8050]  ? kernel_sendmsg+0x50/0x50
[  566.043665][ T8050]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  566.049857][ T8050]  ___sys_sendmsg+0x135/0x1d0
[  566.054665][ T8050]  ? do_recvmmsg+0x740/0x740
[  566.059599][ T8050]  ? find_held_lock+0x2d/0x110
[  566.064479][ T8050]  ? preempt_count_sub+0x160/0x160
[  566.069786][ T8050]  ? __fget_light+0x1fc/0x260
[  566.074562][ T8050]  __sys_sendmsg+0x117/0x1e0
[  566.079536][ T8050]  ? __sys_sendmsg_sock+0x30/0x30
[  566.084780][ T8050]  ? xfd_validate_state+0x5d/0x180
[  566.090569][ T8050]  ? syscall_enter_from_user_mode+0x7f/0x120
[  566.096867][ T8050]  do_syscall_64+0x40/0x110
[  566.101653][ T8050]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  566.108219][ T8050] RIP: 0033:0x7fb700fd30b9
[  566.113344][ T8050] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  566.134920][ T8050] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  566.143717][ T8050] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  566.152775][ T8050] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  566.161547][ T8050] RBP: 0000000000089dc5 R08: 0000000000000000 R09: 0000000000000006
[  566.170985][ T8050] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  566.179715][ T8050] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  566.187876][ T8050]  </TASK>
[  566.194478][ T8050] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  566.256484][ T8050] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  566.266348][ T8050] CPU: 1 PID: 8050 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  566.277108][ T8050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  566.287274][ T8050] Call Trace:
[  566.290832][ T8050]  <TASK>
[  566.294115][ T8050]  dump_stack_lvl+0x125/0x1b0
[  566.299079][ T8050]  sysfs_warn_dup+0x7f/0xa0
[  566.303855][ T8050]  sysfs_create_dir_ns+0x249/0x2b0
[  566.309156][ T8050]  ? sysfs_create_mount_point+0xb0/0xb0
[  566.314818][ T8050]  ? spin_bug+0x1d0/0x1d0
[  566.319396][ T8050]  ? net_namespace+0x12/0x40
[  566.323999][ T8050]  ? device_namespace+0x8d/0xc0
[  566.329220][ T8050]  kobject_add_internal+0x2c8/0x970
[  566.334531][ T8050]  kobject_add+0x16f/0x240
[  566.339075][ T8050]  ? kset_create_and_add+0x190/0x190
[  566.344650][ T8050]  ? do_raw_spin_unlock+0x173/0x230
[  566.349972][ T8050]  ? kobject_put+0xbe/0x440
[  566.354583][ T8050]  ? device_add+0xc35/0x1aa0
[  566.359903][ T8050]  device_add+0x289/0x1aa0
[  566.364371][ T8050]  ? device_initialize+0x510/0x510
[  566.369676][ T8050]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  566.376732][ T8050]  ? __init_waitqueue_head+0xca/0x150
[  566.382199][ T8050]  netdev_register_kobject+0x183/0x3f0
[  566.388075][ T8050]  register_netdevice+0xbe6/0x14b0
[  566.393401][ T8050]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  566.399699][ T8050]  ? validate_linkmsg+0x6fc/0x9c0
[  566.404864][ T8050]  br_dev_newlink+0x27/0x110
[  566.409755][ T8050]  ? br_changelink+0x1760/0x1760
[  566.414983][ T8050]  __rtnl_newlink+0x1173/0x1930
[  566.419991][ T8050]  ? rtnl_link_unregister+0x260/0x260
[  566.425853][ T8050]  rtnl_newlink+0x67/0xa0
[  566.430431][ T8050]  ? __rtnl_newlink+0x1930/0x1930
[  566.435772][ T8050]  rtnetlink_rcv_msg+0x3c7/0xe00
[  566.440935][ T8050]  ? rtnl_fill_vf+0x4a0/0x4a0
[  566.445638][ T8050]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  566.452012][ T8050]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  566.459385][ T8050]  netlink_rcv_skb+0x16b/0x440
[  566.464350][ T8050]  ? rtnl_fill_vf+0x4a0/0x4a0
[  566.469786][ T8050]  ? netlink_ack+0x1380/0x1380
[  566.475643][ T8050]  ? lock_sync+0x190/0x190
[  566.480581][ T8050]  ? netlink_deliver_tap+0x1a0/0xd00
[  566.486186][ T8050]  ? _copy_from_iter+0x2c1/0x10f0
[  566.491675][ T8050]  netlink_unicast+0x53b/0x810
[  566.496648][ T8050]  ? netlink_attachskb+0x880/0x880
[  566.501892][ T8050]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  566.508184][ T8050]  ? __phys_addr_symbol+0x30/0x70
[  566.513767][ T8050]  ? __check_object_size+0x323/0x730
[  566.519742][ T8050]  netlink_sendmsg+0x93c/0xe40
[  566.524559][ T8050]  ? netlink_unicast+0x810/0x810
[  566.530226][ T8050]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  566.536263][ T8050]  ? netlink_unicast+0x810/0x810
[  566.542208][ T8050]  __sock_sendmsg+0xd5/0x180
[  566.547080][ T8050]  ____sys_sendmsg+0x6ac/0x940
[  566.552568][ T8050]  ? copy_msghdr_from_user+0x10b/0x160
[  566.558796][ T8050]  ? kernel_sendmsg+0x50/0x50
[  566.564132][ T8050]  ? hlock_class+0x4e/0x130
[  566.569377][ T8050]  ? __lock_acquire+0x14e0/0x3b10
[  566.574874][ T8050]  ___sys_sendmsg+0x135/0x1d0
[  566.580908][ T8050]  ? do_recvmmsg+0x740/0x740
[  566.585705][ T8050]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  566.591808][ T8050]  ? find_held_lock+0x2d/0x110
[  566.597085][ T8050]  ? __fget_light+0x1fc/0x260
[  566.602167][ T8050]  __sys_sendmsg+0x117/0x1e0
[  566.607066][ T8050]  ? __sys_sendmsg_sock+0x30/0x30
[  566.612193][ T8050]  ? xfd_validate_state+0x5d/0x180
[  566.617354][ T8050]  ? syscall_enter_from_user_mode+0x7f/0x120
[  566.623465][ T8050]  do_syscall_64+0x40/0x110
[  566.630439][ T8050]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  566.636478][ T8050] RIP: 0033:0x7fb700fd30b9
[  566.640993][ T8050] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  566.661508][ T8050] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  566.670126][ T8050] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  566.678401][ T8050] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  566.686574][ T8050] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  566.694660][ T8050] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  566.702812][ T8050] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  566.710974][ T8050]  </TASK>
[  566.714481][ T8050] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  566.772186][ T8051] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  566.784113][ T8051] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  566.793838][ T8051] CPU: 0 PID: 8051 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  566.806273][ T8051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  566.816958][ T8051] Call Trace:
[  566.820336][ T8051]  <TASK>
[  566.823860][ T8051]  dump_stack_lvl+0x125/0x1b0
[  566.828604][ T8051]  sysfs_warn_dup+0x7f/0xa0
[  566.833225][ T8051]  sysfs_create_dir_ns+0x249/0x2b0
[  566.838713][ T8051]  ? sysfs_create_mount_point+0xb0/0xb0
[  566.844715][ T8051]  ? spin_bug+0x1d0/0x1d0
[  566.849853][ T8051]  ? net_namespace+0x12/0x40
[  566.854922][ T8051]  ? device_namespace+0x8d/0xc0
[  566.859805][ T8051]  kobject_add_internal+0x2c8/0x970
[  566.865165][ T8051]  kobject_add+0x16f/0x240
[  566.870871][ T8051]  ? kset_create_and_add+0x190/0x190
[  566.876593][ T8051]  ? do_raw_spin_unlock+0x173/0x230
[  566.881988][ T8051]  ? kobject_put+0xbe/0x440
[  566.887083][ T8051]  ? device_add+0xc35/0x1aa0
[  566.891804][ T8051]  device_add+0x289/0x1aa0
[  566.896260][ T8051]  ? device_initialize+0x510/0x510
[  566.901385][ T8051]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  566.908607][ T8051]  ? __init_waitqueue_head+0xca/0x150
[  566.914411][ T8051]  netdev_register_kobject+0x183/0x3f0
[  566.921019][ T8051]  register_netdevice+0xbe6/0x14b0
[  566.926873][ T8051]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  566.933556][ T8051]  ? validate_linkmsg+0x6fc/0x9c0
[  566.941695][ T8051]  br_dev_newlink+0x27/0x110
[  566.947387][ T8051]  ? br_changelink+0x1760/0x1760
[  566.952612][ T8051]  __rtnl_newlink+0x1173/0x1930
[  566.958020][ T8051]  ? rtnl_link_unregister+0x260/0x260
[  566.964135][ T8051]  rtnl_newlink+0x67/0xa0
[  566.969236][ T8051]  ? __rtnl_newlink+0x1930/0x1930
[  566.975368][ T8051]  rtnetlink_rcv_msg+0x3c7/0xe00
[  566.980774][ T8051]  ? rtnl_fill_vf+0x4a0/0x4a0
[  566.985723][ T8051]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  566.992620][ T8051]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  566.998826][ T8051]  netlink_rcv_skb+0x16b/0x440
[  567.003816][ T8051]  ? rtnl_fill_vf+0x4a0/0x4a0
[  567.008761][ T8051]  ? netlink_ack+0x1380/0x1380
[  567.013905][ T8051]  ? lock_sync+0x190/0x190
[  567.018905][ T8051]  ? netlink_deliver_tap+0x1a0/0xd00
[  567.024459][ T8051]  ? _copy_from_iter+0x2c1/0x10f0
[  567.029708][ T8051]  netlink_unicast+0x53b/0x810
[  567.034595][ T8051]  ? netlink_attachskb+0x880/0x880
[  567.040258][ T8051]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  567.046166][ T8051]  ? __phys_addr_symbol+0x30/0x70
[  567.051820][ T8051]  ? __check_object_size+0x323/0x730
[  567.057501][ T8051]  netlink_sendmsg+0x93c/0xe40
[  567.062408][ T8051]  ? netlink_unicast+0x810/0x810
[  567.067725][ T8051]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  567.074320][ T8051]  ? netlink_unicast+0x810/0x810
[  567.079530][ T8051]  __sock_sendmsg+0xd5/0x180
[  567.084505][ T8051]  ____sys_sendmsg+0x6ac/0x940
[  567.089387][ T8051]  ? copy_msghdr_from_user+0x10b/0x160
[  567.095452][ T8051]  ? kernel_sendmsg+0x50/0x50
[  567.100499][ T8051]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  567.106607][ T8051]  ___sys_sendmsg+0x135/0x1d0
[  567.111328][ T8051]  ? do_recvmmsg+0x740/0x740
[  567.115949][ T8051]  ? find_held_lock+0x2d/0x110
[  567.121024][ T8051]  ? preempt_count_sub+0x160/0x160
[  567.126601][ T8051]  ? __fget_light+0x1fc/0x260
[  567.131804][ T8051]  __sys_sendmsg+0x117/0x1e0
[  567.137023][ T8051]  ? __sys_sendmsg_sock+0x30/0x30
[  567.142517][ T8051]  ? xfd_validate_state+0x5d/0x180
[  567.147944][ T8051]  ? syscall_enter_from_user_mode+0x7f/0x120
[  567.154380][ T8051]  do_syscall_64+0x40/0x110
[  567.159196][ T8051]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  567.165617][ T8051] RIP: 0033:0x7fb700fd30b9
[  567.170321][ T8051] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  567.190546][ T8051] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  567.199261][ T8051] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  567.207596][ T8051] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  567.216378][ T8051] RBP: 000000000008a1b5 R08: 0000000000000000 R09: 0000000000000006
[  567.225400][ T8051] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  567.234069][ T8051] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  567.242761][ T8051]  </TASK>
[  567.248536][ T8051] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  567.316118][ T8051] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  567.325812][ T8051] CPU: 0 PID: 8051 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  567.336248][ T8051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  567.347090][ T8051] Call Trace:
[  567.350454][ T8051]  <TASK>
[  567.353546][ T8051]  dump_stack_lvl+0x125/0x1b0
[  567.358681][ T8051]  sysfs_warn_dup+0x7f/0xa0
[  567.363313][ T8051]  sysfs_create_dir_ns+0x249/0x2b0
[  567.368958][ T8051]  ? sysfs_create_mount_point+0xb0/0xb0
[  567.374791][ T8051]  ? spin_bug+0x1d0/0x1d0
[  567.379136][ T8051]  ? net_namespace+0x12/0x40
[  567.383824][ T8051]  ? device_namespace+0x8d/0xc0
[  567.388876][ T8051]  kobject_add_internal+0x2c8/0x970
[  567.394257][ T8051]  kobject_add+0x16f/0x240
[  567.398883][ T8051]  ? kset_create_and_add+0x190/0x190
[  567.404200][ T8051]  ? do_raw_spin_unlock+0x173/0x230
[  567.409692][ T8051]  ? kobject_put+0xbe/0x440
[  567.414394][ T8051]  ? device_add+0xc35/0x1aa0
[  567.420165][ T8051]  device_add+0x289/0x1aa0
[  567.425061][ T8051]  ? device_initialize+0x510/0x510
[  567.430285][ T8051]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  567.437524][ T8051]  ? __init_waitqueue_head+0xca/0x150
[  567.442943][ T8051]  netdev_register_kobject+0x183/0x3f0
[  567.448612][ T8051]  register_netdevice+0xbe6/0x14b0
[  567.454263][ T8051]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  567.460835][ T8051]  ? validate_linkmsg+0x6fc/0x9c0
[  567.466199][ T8051]  br_dev_newlink+0x27/0x110
[  567.470989][ T8051]  ? br_changelink+0x1760/0x1760
[  567.476253][ T8051]  __rtnl_newlink+0x1173/0x1930
[  567.481595][ T8051]  ? rtnl_link_unregister+0x260/0x260
[  567.487234][ T8051]  rtnl_newlink+0x67/0xa0
[  567.491766][ T8051]  ? __rtnl_newlink+0x1930/0x1930
[  567.497156][ T8051]  rtnetlink_rcv_msg+0x3c7/0xe00
[  567.502422][ T8051]  ? rtnl_fill_vf+0x4a0/0x4a0
[  567.507983][ T8051]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  567.514532][ T8051]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  567.520985][ T8051]  netlink_rcv_skb+0x16b/0x440
[  567.525776][ T8051]  ? rtnl_fill_vf+0x4a0/0x4a0
[  567.530852][ T8051]  ? netlink_ack+0x1380/0x1380
[  567.536051][ T8051]  ? lock_sync+0x190/0x190
[  567.540976][ T8051]  ? netlink_deliver_tap+0x1a0/0xd00
[  567.546408][ T8051]  ? _copy_from_iter+0x2c1/0x10f0
[  567.552111][ T8051]  netlink_unicast+0x53b/0x810
[  567.557187][ T8051]  ? netlink_attachskb+0x880/0x880
[  567.562483][ T8051]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  567.569172][ T8051]  ? __phys_addr_symbol+0x30/0x70
[  567.574561][ T8051]  ? __check_object_size+0x323/0x730
[  567.580238][ T8051]  netlink_sendmsg+0x93c/0xe40
[  567.585114][ T8051]  ? netlink_unicast+0x810/0x810
[  567.590371][ T8051]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  567.596670][ T8051]  ? netlink_unicast+0x810/0x810
[  567.601996][ T8051]  __sock_sendmsg+0xd5/0x180
[  567.606752][ T8051]  ____sys_sendmsg+0x6ac/0x940
[  567.611836][ T8051]  ? copy_msghdr_from_user+0x10b/0x160
[  567.617680][ T8051]  ? kernel_sendmsg+0x50/0x50
[  567.622484][ T8051]  ? hlock_class+0x4e/0x130
[  567.627268][ T8051]  ? __lock_acquire+0x14e0/0x3b10
[  567.632417][ T8051]  ___sys_sendmsg+0x135/0x1d0
[  567.637345][ T8051]  ? do_recvmmsg+0x740/0x740
[  567.642486][ T8051]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  567.648489][ T8051]  ? find_held_lock+0x2d/0x110
[  567.653373][ T8051]  ? __fget_light+0x1fc/0x260
[  567.658218][ T8051]  __sys_sendmsg+0x117/0x1e0
[  567.662821][ T8051]  ? __sys_sendmsg_sock+0x30/0x30
[  567.667978][ T8051]  ? xfd_validate_state+0x5d/0x180
[  567.673115][ T8051]  ? syscall_enter_from_user_mode+0x7f/0x120
[  567.679312][ T8051]  do_syscall_64+0x40/0x110
[  567.684014][ T8051]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  567.690553][ T8051] RIP: 0033:0x7fb700fd30b9
[  567.695058][ T8051] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  567.714949][ T8051] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  567.723648][ T8051] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  567.732042][ T8051] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  567.740693][ T8051] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  567.753897][ T8051] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  567.762221][ T8051] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  567.771039][ T8051]  </TASK>
[  567.775775][ T8051] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  567.832343][ T8052] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  567.843596][ T8052] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  567.853339][ T8052] CPU: 1 PID: 8052 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  567.863616][ T8052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  567.874041][ T8052] Call Trace:
[  567.877586][ T8052]  <TASK>
[  567.880523][ T8052]  dump_stack_lvl+0x125/0x1b0
[  567.885464][ T8052]  sysfs_warn_dup+0x7f/0xa0
[  567.890346][ T8052]  sysfs_create_dir_ns+0x249/0x2b0
[  567.895733][ T8052]  ? sysfs_create_mount_point+0xb0/0xb0
[  567.901475][ T8052]  ? spin_bug+0x1d0/0x1d0
[  567.906001][ T8052]  ? net_namespace+0x12/0x40
[  567.910718][ T8052]  ? device_namespace+0x8d/0xc0
[  567.915706][ T8052]  kobject_add_internal+0x2c8/0x970
[  567.921476][ T8052]  kobject_add+0x16f/0x240
[  567.926032][ T8052]  ? kset_create_and_add+0x190/0x190
[  567.931483][ T8052]  ? do_raw_spin_unlock+0x173/0x230
[  567.937165][ T8052]  ? kobject_put+0xbe/0x440
[  567.941990][ T8052]  ? device_add+0xc35/0x1aa0
[  567.947147][ T8052]  device_add+0x289/0x1aa0
[  567.951663][ T8052]  ? device_initialize+0x510/0x510
[  567.957081][ T8052]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  567.964144][ T8052]  ? __init_waitqueue_head+0xca/0x150
[  567.969741][ T8052]  netdev_register_kobject+0x183/0x3f0
[  567.975232][ T8052]  register_netdevice+0xbe6/0x14b0
[  567.980371][ T8052]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  567.986475][ T8052]  ? validate_linkmsg+0x6fc/0x9c0
[  567.991506][ T8052]  br_dev_newlink+0x27/0x110
[  567.996904][ T8052]  ? br_changelink+0x1760/0x1760
[  568.002209][ T8052]  __rtnl_newlink+0x1173/0x1930
[  568.007193][ T8052]  ? rtnl_link_unregister+0x260/0x260
[  568.012875][ T8052]  rtnl_newlink+0x67/0xa0
[  568.017218][ T8052]  ? __rtnl_newlink+0x1930/0x1930
[  568.022435][ T8052]  rtnetlink_rcv_msg+0x3c7/0xe00
[  568.027580][ T8052]  ? rtnl_fill_vf+0x4a0/0x4a0
[  568.032884][ T8052]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  568.038908][ T8052]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  568.045330][ T8052]  netlink_rcv_skb+0x16b/0x440
[  568.050220][ T8052]  ? rtnl_fill_vf+0x4a0/0x4a0
[  568.055091][ T8052]  ? netlink_ack+0x1380/0x1380
[  568.060125][ T8052]  ? lock_sync+0x190/0x190
[  568.065093][ T8052]  ? netlink_deliver_tap+0x1a0/0xd00
[  568.070765][ T8052]  ? _copy_from_iter+0x2c1/0x10f0
[  568.077214][ T8052]  netlink_unicast+0x53b/0x810
[  568.083597][ T8052]  ? netlink_attachskb+0x880/0x880
[  568.090632][ T8052]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  568.097078][ T8052]  ? __phys_addr_symbol+0x30/0x70
[  568.102502][ T8052]  ? __check_object_size+0x323/0x730
[  568.108484][ T8052]  netlink_sendmsg+0x93c/0xe40
[  568.114669][ T8052]  ? netlink_unicast+0x810/0x810
[  568.121387][ T8052]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  568.127559][ T8052]  ? netlink_unicast+0x810/0x810
[  568.133053][ T8052]  __sock_sendmsg+0xd5/0x180
[  568.137945][ T8052]  ____sys_sendmsg+0x6ac/0x940
[  568.143273][ T8052]  ? copy_msghdr_from_user+0x10b/0x160
[  568.148976][ T8052]  ? kernel_sendmsg+0x50/0x50
[  568.154082][ T8052]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  568.160392][ T8052]  ___sys_sendmsg+0x135/0x1d0
[  568.165190][ T8052]  ? do_recvmmsg+0x740/0x740
[  568.169802][ T8052]  ? find_held_lock+0x2d/0x110
[  568.174857][ T8052]  ? preempt_count_sub+0x160/0x160
[  568.180324][ T8052]  ? __fget_light+0x1fc/0x260
[  568.185117][ T8052]  __sys_sendmsg+0x117/0x1e0
[  568.189825][ T8052]  ? __sys_sendmsg_sock+0x30/0x30
[  568.195786][ T8052]  ? xfd_validate_state+0x5d/0x180
[  568.201438][ T8052]  ? syscall_enter_from_user_mode+0x7f/0x120
[  568.207971][ T8052]  do_syscall_64+0x40/0x110
[  568.212959][ T8052]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  568.219238][ T8052] RIP: 0033:0x7fb700fd30b9
[  568.224024][ T8052] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  568.245131][ T8052] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  568.254703][ T8052] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  568.263478][ T8052] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  568.271639][ T8052] RBP: 000000000008a5c7 R08: 0000000000000000 R09: 0000000000000006
[  568.279879][ T8052] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  568.287944][ T8052] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  568.296109][ T8052]  </TASK>
[  568.300524][ T8052] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  568.366361][ T8052] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  568.378472][ T8052] CPU: 0 PID: 8052 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  568.388758][ T8052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  568.400050][ T8052] Call Trace:
[  568.403519][ T8052]  <TASK>
[  568.406475][ T8052]  dump_stack_lvl+0x125/0x1b0
[  568.411242][ T8052]  sysfs_warn_dup+0x7f/0xa0
[  568.415967][ T8052]  sysfs_create_dir_ns+0x249/0x2b0
[  568.421452][ T8052]  ? sysfs_create_mount_point+0xb0/0xb0
[  568.427591][ T8052]  ? spin_bug+0x1d0/0x1d0
[  568.431957][ T8052]  ? net_namespace+0x12/0x40
[  568.436980][ T8052]  ? device_namespace+0x8d/0xc0
[  568.442311][ T8052]  kobject_add_internal+0x2c8/0x970
[  568.447796][ T8052]  kobject_add+0x16f/0x240
[  568.452380][ T8052]  ? kset_create_and_add+0x190/0x190
[  568.458485][ T8052]  ? do_raw_spin_unlock+0x173/0x230
[  568.463789][ T8052]  ? kobject_put+0xbe/0x440
[  568.468428][ T8052]  ? device_add+0xc35/0x1aa0
[  568.473339][ T8052]  device_add+0x289/0x1aa0
[  568.477979][ T8052]  ? device_initialize+0x510/0x510
[  568.483467][ T8052]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  568.491233][ T8052]  ? __init_waitqueue_head+0xca/0x150
[  568.496998][ T8052]  netdev_register_kobject+0x183/0x3f0
[  568.502773][ T8052]  register_netdevice+0xbe6/0x14b0
[  568.510637][ T8052]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  568.517202][ T8052]  ? validate_linkmsg+0x6fc/0x9c0
[  568.522278][ T8052]  br_dev_newlink+0x27/0x110
[  568.526968][ T8052]  ? br_changelink+0x1760/0x1760
[  568.532171][ T8052]  __rtnl_newlink+0x1173/0x1930
[  568.537596][ T8052]  ? rtnl_link_unregister+0x260/0x260
[  568.543440][ T8052]  rtnl_newlink+0x67/0xa0
[  568.548435][ T8052]  ? __rtnl_newlink+0x1930/0x1930
[  568.554183][ T8052]  rtnetlink_rcv_msg+0x3c7/0xe00
[  568.560922][ T8052]  ? rtnl_fill_vf+0x4a0/0x4a0
[  568.565985][ T8052]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  568.572437][ T8052]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  568.578706][ T8052]  netlink_rcv_skb+0x16b/0x440
[  568.583615][ T8052]  ? rtnl_fill_vf+0x4a0/0x4a0
[  568.589016][ T8052]  ? netlink_ack+0x1380/0x1380
[  568.593915][ T8052]  ? lock_sync+0x190/0x190
[  568.598549][ T8052]  ? netlink_deliver_tap+0x1a0/0xd00
[  568.604591][ T8052]  ? _copy_from_iter+0x2c1/0x10f0
[  568.609672][ T8052]  netlink_unicast+0x53b/0x810
[  568.614894][ T8052]  ? netlink_attachskb+0x880/0x880
[  568.620443][ T8052]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  568.626740][ T8052]  ? __phys_addr_symbol+0x30/0x70
[  568.632324][ T8052]  ? __check_object_size+0x323/0x730
[  568.637929][ T8052]  netlink_sendmsg+0x93c/0xe40
[  568.643463][ T8052]  ? netlink_unicast+0x810/0x810
[  568.648528][ T8052]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  568.654043][ T8052]  ? netlink_unicast+0x810/0x810
[  568.659298][ T8052]  __sock_sendmsg+0xd5/0x180
[  568.664402][ T8052]  ____sys_sendmsg+0x6ac/0x940
[  568.669888][ T8052]  ? copy_msghdr_from_user+0x10b/0x160
[  568.675853][ T8052]  ? kernel_sendmsg+0x50/0x50
[  568.680674][ T8052]  ? hlock_class+0x4e/0x130
[  568.685872][ T8052]  ? __lock_acquire+0x14e0/0x3b10
[  568.691886][ T8052]  ___sys_sendmsg+0x135/0x1d0
[  568.697681][ T8052]  ? do_recvmmsg+0x740/0x740
[  568.702406][ T8052]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  568.709039][ T8052]  ? find_held_lock+0x2d/0x110
[  568.715283][ T8052]  ? __fget_light+0x1fc/0x260
[  568.720251][ T8052]  __sys_sendmsg+0x117/0x1e0
[  568.725490][ T8052]  ? __sys_sendmsg_sock+0x30/0x30
[  568.731258][ T8052]  ? __do_sys_rseq+0x750/0x750
[  568.736827][ T8052]  ? syscall_enter_from_user_mode+0x7f/0x120
[  568.744109][ T8052]  do_syscall_64+0x40/0x110
[  568.749331][ T8052]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  568.757264][ T8052] RIP: 0033:0x7fb700fd30b9
[  568.762269][ T8052] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  568.783493][ T8052] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  568.793411][ T8052] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  568.802325][ T8052] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  568.810850][ T8052] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  568.819432][ T8052] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  568.828041][ T8052] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  568.836607][ T8052]  </TASK>
[  568.841128][ T8052] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  568.902572][ T8053] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  568.915248][ T8053] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  568.925325][ T8053] CPU: 0 PID: 8053 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  568.936761][ T8053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  568.947569][ T8053] Call Trace:
[  568.951368][ T8053]  <TASK>
[  568.954546][ T8053]  dump_stack_lvl+0x125/0x1b0
[  568.959316][ T8053]  sysfs_warn_dup+0x7f/0xa0
[  568.964117][ T8053]  sysfs_create_dir_ns+0x249/0x2b0
[  568.969696][ T8053]  ? sysfs_create_mount_point+0xb0/0xb0
[  568.975786][ T8053]  ? spin_bug+0x1d0/0x1d0
[  568.980215][ T8053]  ? net_namespace+0x12/0x40
[  568.984816][ T8053]  ? device_namespace+0x8d/0xc0
[  568.989697][ T8053]  kobject_add_internal+0x2c8/0x970
[  568.995027][ T8053]  kobject_add+0x16f/0x240
[  568.999513][ T8053]  ? kset_create_and_add+0x190/0x190
[  569.005352][ T8053]  ? do_raw_spin_unlock+0x173/0x230
[  569.010745][ T8053]  ? kobject_put+0xbe/0x440
[  569.015273][ T8053]  ? device_add+0xc35/0x1aa0
[  569.019877][ T8053]  device_add+0x289/0x1aa0
[  569.024312][ T8053]  ? device_initialize+0x510/0x510
[  569.029785][ T8053]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  569.036747][ T8053]  ? __init_waitqueue_head+0xca/0x150
[  569.042320][ T8053]  netdev_register_kobject+0x183/0x3f0
[  569.047979][ T8053]  register_netdevice+0xbe6/0x14b0
[  569.053411][ T8053]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  569.059461][ T8053]  ? validate_linkmsg+0x6fc/0x9c0
[  569.064691][ T8053]  br_dev_newlink+0x27/0x110
[  569.069999][ T8053]  ? br_changelink+0x1760/0x1760
[  569.074951][ T8053]  __rtnl_newlink+0x1173/0x1930
[  569.080725][ T8053]  ? rtnl_link_unregister+0x260/0x260
[  569.086150][ T8053]  rtnl_newlink+0x67/0xa0
[  569.091200][ T8053]  ? __rtnl_newlink+0x1930/0x1930
[  569.096866][ T8053]  rtnetlink_rcv_msg+0x3c7/0xe00
[  569.101938][ T8053]  ? rtnl_fill_vf+0x4a0/0x4a0
[  569.106915][ T8053]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  569.113015][ T8053]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  569.119367][ T8053]  netlink_rcv_skb+0x16b/0x440
[  569.124419][ T8053]  ? rtnl_fill_vf+0x4a0/0x4a0
[  569.130159][ T8053]  ? netlink_ack+0x1380/0x1380
[  569.135328][ T8053]  ? lock_sync+0x190/0x190
[  569.140302][ T8053]  ? netlink_deliver_tap+0x1a0/0xd00
[  569.146212][ T8053]  ? _copy_from_iter+0x2c1/0x10f0
[  569.151345][ T8053]  netlink_unicast+0x53b/0x810
[  569.156785][ T8053]  ? netlink_attachskb+0x880/0x880
[  569.162132][ T8053]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  569.168912][ T8053]  ? __phys_addr_symbol+0x30/0x70
[  569.174058][ T8053]  ? __check_object_size+0x323/0x730
[  569.180170][ T8053]  netlink_sendmsg+0x93c/0xe40
[  569.185185][ T8053]  ? netlink_unicast+0x810/0x810
[  569.190334][ T8053]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  569.195720][ T8053]  ? netlink_unicast+0x810/0x810
[  569.200874][ T8053]  __sock_sendmsg+0xd5/0x180
[  569.205583][ T8053]  ____sys_sendmsg+0x6ac/0x940
[  569.210378][ T8053]  ? copy_msghdr_from_user+0x10b/0x160
[  569.216083][ T8053]  ? kernel_sendmsg+0x50/0x50
[  569.220807][ T8053]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  569.227042][ T8053]  ___sys_sendmsg+0x135/0x1d0
[  569.231827][ T8053]  ? do_recvmmsg+0x740/0x740
[  569.237490][ T8053]  ? find_held_lock+0x2d/0x110
[  569.243100][ T8053]  ? preempt_count_sub+0x160/0x160
[  569.248700][ T8053]  ? __fget_light+0x1fc/0x260
[  569.253670][ T8053]  __sys_sendmsg+0x117/0x1e0
[  569.258412][ T8053]  ? __sys_sendmsg_sock+0x30/0x30
[  569.263659][ T8053]  ? syscall_enter_from_user_mode+0x7f/0x120
[  569.270306][ T8053]  do_syscall_64+0x40/0x110
[  569.274871][ T8053]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  569.281554][ T8053] RIP: 0033:0x7fb700fd30b9
[  569.285996][ T8053] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  569.306677][ T8053] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  569.316172][ T8053] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  569.324358][ T8053] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  569.334644][ T8053] RBP: 000000000008a9eb R08: 0000000000000000 R09: 0000000000000006
[  569.344411][ T8053] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  569.353607][ T8053] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  569.362919][ T8053]  </TASK>
[  569.366574][ T8053] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  569.446025][ T8053] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  569.456831][ T8053] CPU: 0 PID: 8053 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  569.467692][ T8053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  569.479672][ T8053] Call Trace:
[  569.483163][ T8053]  <TASK>
[  569.486523][ T8053]  dump_stack_lvl+0x125/0x1b0
[  569.492468][ T8053]  sysfs_warn_dup+0x7f/0xa0
[  569.498385][ T8053]  sysfs_create_dir_ns+0x249/0x2b0
[  569.504869][ T8053]  ? sysfs_create_mount_point+0xb0/0xb0
[  569.514301][ T8053]  ? spin_bug+0x1d0/0x1d0
[  569.521277][ T8053]  ? net_namespace+0x12/0x40
[  569.529839][ T8053]  ? device_namespace+0x8d/0xc0
[  569.535770][ T8053]  kobject_add_internal+0x2c8/0x970
[  569.542881][ T8053]  kobject_add+0x16f/0x240
[  569.548637][ T8053]  ? kset_create_and_add+0x190/0x190
[  569.554957][ T8053]  ? do_raw_spin_unlock+0x173/0x230
[  569.561084][ T8053]  ? kobject_put+0xbe/0x440
[  569.566839][ T8053]  ? device_add+0xc35/0x1aa0
[  569.572928][ T8053]  device_add+0x289/0x1aa0
[  569.577434][ T8053]  ? device_initialize+0x510/0x510
[  569.583277][ T8053]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  569.591838][ T8053]  ? __init_waitqueue_head+0xca/0x150
[  569.598949][ T8053]  netdev_register_kobject+0x183/0x3f0
[  569.606356][ T8053]  register_netdevice+0xbe6/0x14b0
[  569.612988][ T8053]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  569.620645][ T8053]  ? validate_linkmsg+0x6fc/0x9c0
[  569.626140][ T8053]  br_dev_newlink+0x27/0x110
[  569.632196][ T8053]  ? br_changelink+0x1760/0x1760
[  569.641203][ T8053]  __rtnl_newlink+0x1173/0x1930
[  569.647206][ T8053]  ? rtnl_link_unregister+0x260/0x260
[  569.653747][ T8053]  rtnl_newlink+0x67/0xa0
[  569.658755][ T8053]  ? __rtnl_newlink+0x1930/0x1930
[  569.664415][ T8053]  rtnetlink_rcv_msg+0x3c7/0xe00
[  569.669660][ T8053]  ? rtnl_fill_vf+0x4a0/0x4a0
[  569.674872][ T8053]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  569.682216][ T8053]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  569.689655][ T8053]  netlink_rcv_skb+0x16b/0x440
[  569.695423][ T8053]  ? rtnl_fill_vf+0x4a0/0x4a0
[  569.700414][ T8053]  ? netlink_ack+0x1380/0x1380
[  569.705819][ T8053]  ? lock_sync+0x190/0x190
[  569.711007][ T8053]  ? netlink_deliver_tap+0x1a0/0xd00
[  569.718511][ T8053]  ? _copy_from_iter+0x2c1/0x10f0
[  569.724200][ T8053]  netlink_unicast+0x53b/0x810
[  569.730164][ T8053]  ? netlink_attachskb+0x880/0x880
[  569.736034][ T8053]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  569.743632][ T8053]  ? __phys_addr_symbol+0x30/0x70
[  569.749736][ T8053]  ? __check_object_size+0x323/0x730
[  569.755783][ T8053]  netlink_sendmsg+0x93c/0xe40
[  569.761810][ T8053]  ? netlink_unicast+0x810/0x810
[  569.768902][ T8053]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  569.774832][ T8053]  ? netlink_unicast+0x810/0x810
[  569.779959][ T8053]  __sock_sendmsg+0xd5/0x180
[  569.784895][ T8053]  ____sys_sendmsg+0x6ac/0x940
[  569.790059][ T8053]  ? copy_msghdr_from_user+0x10b/0x160
[  569.796778][ T8053]  ? kernel_sendmsg+0x50/0x50
[  569.803220][ T8053]  ? hlock_class+0x4e/0x130
[  569.810709][ T8053]  ? __lock_acquire+0x14e0/0x3b10
[  569.817392][ T8053]  ___sys_sendmsg+0x135/0x1d0
[  569.823933][ T8053]  ? do_recvmmsg+0x740/0x740
[  569.831460][ T8053]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  569.839734][ T8053]  ? find_held_lock+0x2d/0x110
[  569.845308][ T8053]  ? __fget_light+0x1fc/0x260
[  569.850453][ T8053]  __sys_sendmsg+0x117/0x1e0
[  569.855487][ T8053]  ? __sys_sendmsg_sock+0x30/0x30
[  569.861513][ T8053]  ? __do_sys_rseq+0x750/0x750
[  569.867515][ T8053]  ? syscall_enter_from_user_mode+0x7f/0x120
[  569.876592][ T8053]  do_syscall_64+0x40/0x110
[  569.883755][ T8053]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  569.891995][ T8053] RIP: 0033:0x7fb700fd30b9
[  569.897328][ T8053] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  569.921574][ T8053] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  569.934334][ T8053] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  569.947499][ T8053] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  569.958646][ T8053] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  569.968107][ T8053] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  569.978752][ T8053] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  569.987765][ T8053]  </TASK>
[  569.991618][ T8053] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  570.052545][ T8054] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  570.063880][ T8054] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  570.075978][ T8054] CPU: 1 PID: 8054 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  570.087457][ T8054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  570.099474][ T8054] Call Trace:
[  570.103219][ T8054]  <TASK>
[  570.107066][ T8054]  dump_stack_lvl+0x125/0x1b0
[  570.112411][ T8054]  sysfs_warn_dup+0x7f/0xa0
[  570.117128][ T8054]  sysfs_create_dir_ns+0x249/0x2b0
[  570.123180][ T8054]  ? sysfs_create_mount_point+0xb0/0xb0
[  570.129425][ T8054]  ? spin_bug+0x1d0/0x1d0
[  570.134436][ T8054]  ? net_namespace+0x12/0x40
[  570.139539][ T8054]  ? device_namespace+0x8d/0xc0
[  570.145615][ T8054]  kobject_add_internal+0x2c8/0x970
[  570.151304][ T8054]  kobject_add+0x16f/0x240
[  570.156042][ T8054]  ? kset_create_and_add+0x190/0x190
[  570.161455][ T8054]  ? do_raw_spin_unlock+0x173/0x230
[  570.166719][ T8054]  ? kobject_put+0xbe/0x440
[  570.171873][ T8054]  ? device_add+0xc35/0x1aa0
[  570.176678][ T8054]  device_add+0x289/0x1aa0
[  570.181383][ T8054]  ? device_initialize+0x510/0x510
[  570.187168][ T8054]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  570.194329][ T8054]  ? __init_waitqueue_head+0xca/0x150
[  570.199941][ T8054]  netdev_register_kobject+0x183/0x3f0
[  570.206156][ T8054]  register_netdevice+0xbe6/0x14b0
[  570.211695][ T8054]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  570.218228][ T8054]  ? validate_linkmsg+0x6fc/0x9c0
[  570.223637][ T8054]  br_dev_newlink+0x27/0x110
[  570.228588][ T8054]  ? br_changelink+0x1760/0x1760
[  570.233806][ T8054]  __rtnl_newlink+0x1173/0x1930
[  570.238951][ T8054]  ? rtnl_link_unregister+0x260/0x260
[  570.244618][ T8054]  rtnl_newlink+0x67/0xa0
[  570.249508][ T8054]  ? __rtnl_newlink+0x1930/0x1930
[  570.255103][ T8054]  rtnetlink_rcv_msg+0x3c7/0xe00
[  570.261101][ T8054]  ? rtnl_fill_vf+0x4a0/0x4a0
[  570.266107][ T8054]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  570.272128][ T8054]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  570.278511][ T8054]  netlink_rcv_skb+0x16b/0x440
[  570.283769][ T8054]  ? rtnl_fill_vf+0x4a0/0x4a0
[  570.289387][ T8054]  ? netlink_ack+0x1380/0x1380
[  570.294562][ T8054]  ? lock_sync+0x190/0x190
[  570.299545][ T8054]  ? netlink_deliver_tap+0x1a0/0xd00
[  570.305126][ T8054]  ? _copy_from_iter+0x2c1/0x10f0
[  570.310631][ T8054]  netlink_unicast+0x53b/0x810
[  570.315535][ T8054]  ? netlink_attachskb+0x880/0x880
[  570.320758][ T8054]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  570.326952][ T8054]  ? __phys_addr_symbol+0x30/0x70
[  570.332200][ T8054]  ? __check_object_size+0x323/0x730
[  570.337715][ T8054]  netlink_sendmsg+0x93c/0xe40
[  570.342892][ T8054]  ? netlink_unicast+0x810/0x810
[  570.348037][ T8054]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  570.353592][ T8054]  ? netlink_unicast+0x810/0x810
[  570.359002][ T8054]  __sock_sendmsg+0xd5/0x180
[  570.364260][ T8054]  ____sys_sendmsg+0x6ac/0x940
[  570.369629][ T8054]  ? copy_msghdr_from_user+0x10b/0x160
[  570.375375][ T8054]  ? kernel_sendmsg+0x50/0x50
[  570.380420][ T8054]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  570.386972][ T8054]  ___sys_sendmsg+0x135/0x1d0
[  570.391877][ T8054]  ? do_recvmmsg+0x740/0x740
[  570.396816][ T8054]  ? find_held_lock+0x2d/0x110
[  570.401670][ T8054]  ? preempt_count_sub+0x160/0x160
[  570.407174][ T8054]  ? __fget_light+0x1fc/0x260
[  570.413521][ T8054]  __sys_sendmsg+0x117/0x1e0
[  570.418596][ T8054]  ? __sys_sendmsg_sock+0x30/0x30
[  570.424708][ T8054]  ? xfd_validate_state+0x5d/0x180
[  570.430546][ T8054]  ? syscall_enter_from_user_mode+0x7f/0x120
[  570.437079][ T8054]  do_syscall_64+0x40/0x110
[  570.442542][ T8054]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  570.449997][ T8054] RIP: 0033:0x7fb700fd30b9
[  570.454721][ T8054] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  570.475485][ T8054] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  570.484096][ T8054] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  570.492780][ T8054] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  570.502527][ T8054] RBP: 000000000008ae18 R08: 0000000000000000 R09: 0000000000000006
[  570.511750][ T8054] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  570.519839][ T8054] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  570.528164][ T8054]  </TASK>
[  570.531697][ T8054] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  570.596289][ T8054] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  570.605797][ T8054] CPU: 1 PID: 8054 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  570.616255][ T8054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  570.626675][ T8054] Call Trace:
[  570.630014][ T8054]  <TASK>
[  570.632963][ T8054]  dump_stack_lvl+0x125/0x1b0
[  570.637764][ T8054]  sysfs_warn_dup+0x7f/0xa0
[  570.642390][ T8054]  sysfs_create_dir_ns+0x249/0x2b0
[  570.647780][ T8054]  ? sysfs_create_mount_point+0xb0/0xb0
[  570.653449][ T8054]  ? spin_bug+0x1d0/0x1d0
[  570.657910][ T8054]  ? net_namespace+0x12/0x40
[  570.662530][ T8054]  ? device_namespace+0x8d/0xc0
[  570.667431][ T8054]  kobject_add_internal+0x2c8/0x970
[  570.672658][ T8054]  kobject_add+0x16f/0x240
[  570.677124][ T8054]  ? kset_create_and_add+0x190/0x190
[  570.682451][ T8054]  ? do_raw_spin_unlock+0x173/0x230
[  570.687865][ T8054]  ? kobject_put+0xbe/0x440
[  570.692392][ T8054]  ? device_add+0xc35/0x1aa0
[  570.697519][ T8054]  device_add+0x289/0x1aa0
[  570.702152][ T8054]  ? device_initialize+0x510/0x510
[  570.707562][ T8054]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  570.714833][ T8054]  ? __init_waitqueue_head+0xca/0x150
[  570.720351][ T8054]  netdev_register_kobject+0x183/0x3f0
[  570.725855][ T8054]  register_netdevice+0xbe6/0x14b0
[  570.731023][ T8054]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  570.739022][ T8054]  ? validate_linkmsg+0x6fc/0x9c0
[  570.744178][ T8054]  br_dev_newlink+0x27/0x110
[  570.748893][ T8054]  ? br_changelink+0x1760/0x1760
[  570.754544][ T8054]  __rtnl_newlink+0x1173/0x1930
[  570.760199][ T8054]  ? rtnl_link_unregister+0x260/0x260
[  570.765995][ T8054]  rtnl_newlink+0x67/0xa0
[  570.771069][ T8054]  ? __rtnl_newlink+0x1930/0x1930
[  570.776408][ T8054]  rtnetlink_rcv_msg+0x3c7/0xe00
[  570.781649][ T8054]  ? rtnl_fill_vf+0x4a0/0x4a0
[  570.786721][ T8054]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  570.793980][ T8054]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  570.800459][ T8054]  netlink_rcv_skb+0x16b/0x440
[  570.805830][ T8054]  ? rtnl_fill_vf+0x4a0/0x4a0
[  570.811339][ T8054]  ? netlink_ack+0x1380/0x1380
[  570.816745][ T8054]  ? lock_sync+0x190/0x190
[  570.822193][ T8054]  ? netlink_deliver_tap+0x1a0/0xd00
[  570.827899][ T8054]  ? _copy_from_iter+0x2c1/0x10f0
[  570.833563][ T8054]  netlink_unicast+0x53b/0x810
[  570.838627][ T8054]  ? netlink_attachskb+0x880/0x880
[  570.843921][ T8054]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  570.850446][ T8054]  ? __phys_addr_symbol+0x30/0x70
[  570.855922][ T8054]  ? __check_object_size+0x323/0x730
[  570.861404][ T8054]  netlink_sendmsg+0x93c/0xe40
[  570.866535][ T8054]  ? netlink_unicast+0x810/0x810
[  570.873192][ T8054]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  570.879234][ T8054]  ? netlink_unicast+0x810/0x810
[  570.884493][ T8054]  __sock_sendmsg+0xd5/0x180
[  570.889102][ T8054]  ____sys_sendmsg+0x6ac/0x940
[  570.894585][ T8054]  ? copy_msghdr_from_user+0x10b/0x160
[  570.900953][ T8054]  ? kernel_sendmsg+0x50/0x50
[  570.905920][ T8054]  ___sys_sendmsg+0x135/0x1d0
[  570.911458][ T8054]  ? do_recvmmsg+0x740/0x740
[  570.916146][ T8054]  ? find_held_lock+0x2d/0x110
[  570.921117][ T8054]  ? preempt_count_sub+0x160/0x160
[  570.926595][ T8054]  ? __fget_light+0x1fc/0x260
[  570.931545][ T8054]  __sys_sendmsg+0x117/0x1e0
[  570.936157][ T8054]  ? __sys_sendmsg_sock+0x30/0x30
[  570.941834][ T8054]  ? syscall_enter_from_user_mode+0x7f/0x120
[  570.948277][ T8054]  do_syscall_64+0x40/0x110
[  570.953365][ T8054]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  570.960189][ T8054] RIP: 0033:0x7fb700fd30b9
[  570.964726][ T8054] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  570.985505][ T8054] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  570.994106][ T8054] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  571.002529][ T8054] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  571.012931][ T8054] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  571.021357][ T8054] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  571.031361][ T8054] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  571.039795][ T8054]  </TASK>
[  571.043264][ T8054] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  571.111768][ T8055] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  571.123762][ T8055] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  571.133624][ T8055] CPU: 0 PID: 8055 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  571.144575][ T8055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  571.154629][ T8055] Call Trace:
[  571.157991][ T8055]  <TASK>
[  571.160912][ T8055]  dump_stack_lvl+0x125/0x1b0
[  571.165787][ T8055]  sysfs_warn_dup+0x7f/0xa0
[  571.170298][ T8055]  sysfs_create_dir_ns+0x249/0x2b0
[  571.175408][ T8055]  ? sysfs_create_mount_point+0xb0/0xb0
[  571.180949][ T8055]  ? spin_bug+0x1d0/0x1d0
[  571.185705][ T8055]  ? net_namespace+0x12/0x40
[  571.190289][ T8055]  ? device_namespace+0x8d/0xc0
[  571.195501][ T8055]  kobject_add_internal+0x2c8/0x970
[  571.200889][ T8055]  kobject_add+0x16f/0x240
[  571.205334][ T8055]  ? kset_create_and_add+0x190/0x190
[  571.210638][ T8055]  ? do_raw_spin_unlock+0x173/0x230
[  571.216381][ T8055]  ? kobject_put+0xbe/0x440
[  571.221343][ T8055]  ? device_add+0xc35/0x1aa0
[  571.226124][ T8055]  device_add+0x289/0x1aa0
[  571.230637][ T8055]  ? device_initialize+0x510/0x510
[  571.235915][ T8055]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  571.242845][ T8055]  ? __init_waitqueue_head+0xca/0x150
[  571.248304][ T8055]  netdev_register_kobject+0x183/0x3f0
[  571.253978][ T8055]  register_netdevice+0xbe6/0x14b0
[  571.259412][ T8055]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  571.265853][ T8055]  ? validate_linkmsg+0x6fc/0x9c0
[  571.271972][ T8055]  br_dev_newlink+0x27/0x110
[  571.276663][ T8055]  ? br_changelink+0x1760/0x1760
[  571.281853][ T8055]  __rtnl_newlink+0x1173/0x1930
[  571.286710][ T8055]  ? rtnl_link_unregister+0x260/0x260
[  571.292637][ T8055]  rtnl_newlink+0x67/0xa0
[  571.296965][ T8055]  ? __rtnl_newlink+0x1930/0x1930
[  571.302115][ T8055]  rtnetlink_rcv_msg+0x3c7/0xe00
[  571.307949][ T8055]  ? rtnl_fill_vf+0x4a0/0x4a0
[  571.312662][ T8055]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  571.319964][ T8055]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  571.326129][ T8055]  netlink_rcv_skb+0x16b/0x440
[  571.331036][ T8055]  ? rtnl_fill_vf+0x4a0/0x4a0
[  571.335940][ T8055]  ? netlink_ack+0x1380/0x1380
[  571.340710][ T8055]  ? lock_sync+0x190/0x190
[  571.345182][ T8055]  ? netlink_deliver_tap+0x1a0/0xd00
[  571.350578][ T8055]  ? _copy_from_iter+0x2c1/0x10f0
[  571.355614][ T8055]  netlink_unicast+0x53b/0x810
[  571.360611][ T8055]  ? netlink_attachskb+0x880/0x880
[  571.365735][ T8055]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  571.371998][ T8055]  ? __phys_addr_symbol+0x30/0x70
[  571.377298][ T8055]  ? __check_object_size+0x323/0x730
[  571.382590][ T8055]  netlink_sendmsg+0x93c/0xe40
[  571.387410][ T8055]  ? netlink_unicast+0x810/0x810
[  571.392462][ T8055]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  571.397786][ T8055]  ? netlink_unicast+0x810/0x810
[  571.403072][ T8055]  __sock_sendmsg+0xd5/0x180
[  571.407919][ T8055]  ____sys_sendmsg+0x6ac/0x940
[  571.412779][ T8055]  ? copy_msghdr_from_user+0x10b/0x160
[  571.418433][ T8055]  ? kernel_sendmsg+0x50/0x50
[  571.423294][ T8055]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  571.429628][ T8055]  ___sys_sendmsg+0x135/0x1d0
[  571.434780][ T8055]  ? do_recvmmsg+0x740/0x740
[  571.440203][ T8055]  ? find_held_lock+0x2d/0x110
[  571.445562][ T8055]  ? preempt_count_sub+0x160/0x160
[  571.451236][ T8055]  ? __fget_light+0x1fc/0x260
[  571.456819][ T8055]  __sys_sendmsg+0x117/0x1e0
[  571.461506][ T8055]  ? __sys_sendmsg_sock+0x30/0x30
[  571.466907][ T8055]  ? xfd_validate_state+0x5d/0x180
[  571.472219][ T8055]  ? syscall_enter_from_user_mode+0x7f/0x120
[  571.478577][ T8055]  do_syscall_64+0x40/0x110
[  571.483239][ T8055]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  571.489227][ T8055] RIP: 0033:0x7fb700fd30b9
[  571.493647][ T8055] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  571.514941][ T8055] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  571.523624][ T8055] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  571.532153][ T8055] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  571.540310][ T8055] RBP: 000000000008b297 R08: 0000000000000000 R09: 0000000000000006
[  571.548414][ T8055] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  571.556567][ T8055] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  571.564826][ T8055]  </TASK>
[  571.570569][ T8055] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  571.626191][ T8055] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  571.635774][ T8055] CPU: 0 PID: 8055 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  571.647523][ T8055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  571.657830][ T8055] Call Trace:
[  571.661300][ T8055]  <TASK>
[  571.664225][ T8055]  dump_stack_lvl+0x125/0x1b0
[  571.669274][ T8055]  sysfs_warn_dup+0x7f/0xa0
[  571.673965][ T8055]  sysfs_create_dir_ns+0x249/0x2b0
[  571.679266][ T8055]  ? sysfs_create_mount_point+0xb0/0xb0
[  571.684921][ T8055]  ? spin_bug+0x1d0/0x1d0
[  571.689350][ T8055]  ? net_namespace+0x12/0x40
[  571.693994][ T8055]  ? device_namespace+0x8d/0xc0
[  571.698956][ T8055]  kobject_add_internal+0x2c8/0x970
[  571.704539][ T8055]  kobject_add+0x16f/0x240
[  571.708991][ T8055]  ? kset_create_and_add+0x190/0x190
[  571.715239][ T8055]  ? do_raw_spin_unlock+0x173/0x230
[  571.720731][ T8055]  ? kobject_put+0xbe/0x440
[  571.725278][ T8055]  ? device_add+0xc35/0x1aa0
[  571.730092][ T8055]  device_add+0x289/0x1aa0
[  571.734842][ T8055]  ? device_initialize+0x510/0x510
[  571.740161][ T8055]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  571.747305][ T8055]  ? __init_waitqueue_head+0xca/0x150
[  571.752843][ T8055]  netdev_register_kobject+0x183/0x3f0
[  571.758507][ T8055]  register_netdevice+0xbe6/0x14b0
[  571.764032][ T8055]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  571.769939][ T8055]  ? validate_linkmsg+0x6fc/0x9c0
[  571.775525][ T8055]  br_dev_newlink+0x27/0x110
[  571.780646][ T8055]  ? br_changelink+0x1760/0x1760
[  571.786492][ T8055]  __rtnl_newlink+0x1173/0x1930
[  571.791697][ T8055]  ? rtnl_link_unregister+0x260/0x260
[  571.797212][ T8055]  rtnl_newlink+0x67/0xa0
[  571.801662][ T8055]  ? __rtnl_newlink+0x1930/0x1930
[  571.807068][ T8055]  rtnetlink_rcv_msg+0x3c7/0xe00
[  571.812565][ T8055]  ? rtnl_fill_vf+0x4a0/0x4a0
[  571.817473][ T8055]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  571.823478][ T8055]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  571.830804][ T8055]  netlink_rcv_skb+0x16b/0x440
[  571.835865][ T8055]  ? rtnl_fill_vf+0x4a0/0x4a0
[  571.841339][ T8055]  ? netlink_ack+0x1380/0x1380
[  571.846847][ T8055]  ? lock_sync+0x190/0x190
[  571.851589][ T8055]  ? netlink_deliver_tap+0x1a0/0xd00
[  571.857516][ T8055]  ? _copy_from_iter+0x2c1/0x10f0
[  571.863519][ T8055]  netlink_unicast+0x53b/0x810
[  571.869054][ T8055]  ? netlink_attachskb+0x880/0x880
[  571.874538][ T8055]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  571.880572][ T8055]  ? __phys_addr_symbol+0x30/0x70
[  571.885975][ T8055]  ? __check_object_size+0x323/0x730
[  571.891813][ T8055]  netlink_sendmsg+0x93c/0xe40
[  571.897345][ T8055]  ? netlink_unicast+0x810/0x810
[  571.903118][ T8055]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  571.908425][ T8055]  ? netlink_unicast+0x810/0x810
[  571.913586][ T8055]  __sock_sendmsg+0xd5/0x180
[  571.918367][ T8055]  ____sys_sendmsg+0x6ac/0x940
[  571.923325][ T8055]  ? copy_msghdr_from_user+0x10b/0x160
[  571.929144][ T8055]  ? kernel_sendmsg+0x50/0x50
[  571.933944][ T8055]  ? hlock_class+0x4e/0x130
[  571.938808][ T8055]  ? __lock_acquire+0x14e0/0x3b10
[  571.944119][ T8055]  ___sys_sendmsg+0x135/0x1d0
[  571.948812][ T8055]  ? do_recvmmsg+0x740/0x740
[  571.953692][ T8055]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  571.959781][ T8055]  ? find_held_lock+0x2d/0x110
[  571.964688][ T8055]  ? __fget_light+0x1fc/0x260
[  571.969400][ T8055]  __sys_sendmsg+0x117/0x1e0
[  571.974283][ T8055]  ? __sys_sendmsg_sock+0x30/0x30
[  571.979435][ T8055]  ? __do_sys_rseq+0x750/0x750
[  571.984483][ T8055]  ? syscall_enter_from_user_mode+0x7f/0x120
[  571.990652][ T8055]  do_syscall_64+0x40/0x110
[  571.996057][ T8055]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  572.003009][ T8055] RIP: 0033:0x7fb700fd30b9
[  572.007622][ T8055] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  572.028043][ T8055] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  572.037166][ T8055] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  572.046043][ T8055] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  572.054655][ T8055] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  572.063257][ T8055] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  572.072441][ T8055] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  572.082023][ T8055]  </TASK>
[  572.086780][ T8055] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  572.154335][ T8056] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  572.164995][ T8056] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  572.174197][ T8056] CPU: 1 PID: 8056 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  572.184903][ T8056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  572.195233][ T8056] Call Trace:
[  572.198526][ T8056]  <TASK>
[  572.201662][ T8056]  dump_stack_lvl+0x125/0x1b0
[  572.206645][ T8056]  sysfs_warn_dup+0x7f/0xa0
[  572.211537][ T8056]  sysfs_create_dir_ns+0x249/0x2b0
[  572.217032][ T8056]  ? sysfs_create_mount_point+0xb0/0xb0
[  572.223261][ T8056]  ? spin_bug+0x1d0/0x1d0
[  572.227899][ T8056]  ? net_namespace+0x12/0x40
[  572.232855][ T8056]  ? device_namespace+0x8d/0xc0
[  572.237795][ T8056]  kobject_add_internal+0x2c8/0x970
[  572.243896][ T8056]  kobject_add+0x16f/0x240
[  572.248966][ T8056]  ? kset_create_and_add+0x190/0x190
[  572.254515][ T8056]  ? do_raw_spin_unlock+0x173/0x230
[  572.260694][ T8056]  ? kobject_put+0xbe/0x440
[  572.266081][ T8056]  ? device_add+0xc35/0x1aa0
[  572.270686][ T8056]  device_add+0x289/0x1aa0
[  572.275464][ T8056]  ? device_initialize+0x510/0x510
[  572.280587][ T8056]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  572.287637][ T8056]  ? __init_waitqueue_head+0xca/0x150
[  572.293163][ T8056]  netdev_register_kobject+0x183/0x3f0
[  572.299040][ T8056]  register_netdevice+0xbe6/0x14b0
[  572.304582][ T8056]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  572.310934][ T8056]  ? validate_linkmsg+0x6fc/0x9c0
[  572.316301][ T8056]  br_dev_newlink+0x27/0x110
[  572.321286][ T8056]  ? br_changelink+0x1760/0x1760
[  572.326747][ T8056]  __rtnl_newlink+0x1173/0x1930
[  572.332035][ T8056]  ? rtnl_link_unregister+0x260/0x260
[  572.337824][ T8056]  rtnl_newlink+0x67/0xa0
[  572.343336][ T8056]  ? __rtnl_newlink+0x1930/0x1930
[  572.349202][ T8056]  rtnetlink_rcv_msg+0x3c7/0xe00
[  572.354307][ T8056]  ? rtnl_fill_vf+0x4a0/0x4a0
[  572.359872][ T8056]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  572.366601][ T8056]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  572.372715][ T8056]  netlink_rcv_skb+0x16b/0x440
[  572.377721][ T8056]  ? rtnl_fill_vf+0x4a0/0x4a0
[  572.382541][ T8056]  ? netlink_ack+0x1380/0x1380
[  572.387445][ T8056]  ? lock_sync+0x190/0x190
[  572.392298][ T8056]  ? netlink_deliver_tap+0x1a0/0xd00
[  572.397620][ T8056]  ? _copy_from_iter+0x2c1/0x10f0
[  572.402703][ T8056]  netlink_unicast+0x53b/0x810
[  572.407514][ T8056]  ? netlink_attachskb+0x880/0x880
[  572.412724][ T8056]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  572.418802][ T8056]  ? __phys_addr_symbol+0x30/0x70
[  572.423903][ T8056]  ? __check_object_size+0x323/0x730
[  572.429380][ T8056]  netlink_sendmsg+0x93c/0xe40
[  572.436448][ T8056]  ? netlink_unicast+0x810/0x810
[  572.442210][ T8056]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  572.448057][ T8056]  ? netlink_unicast+0x810/0x810
[  572.453580][ T8056]  __sock_sendmsg+0xd5/0x180
[  572.458904][ T8056]  ____sys_sendmsg+0x6ac/0x940
[  572.463982][ T8056]  ? copy_msghdr_from_user+0x10b/0x160
[  572.469629][ T8056]  ? kernel_sendmsg+0x50/0x50
[  572.474407][ T8056]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  572.480918][ T8056]  ___sys_sendmsg+0x135/0x1d0
[  572.486059][ T8056]  ? do_recvmmsg+0x740/0x740
[  572.491825][ T8056]  ? find_held_lock+0x2d/0x110
[  572.498230][ T8056]  ? preempt_count_sub+0x160/0x160
[  572.503812][ T8056]  ? __fget_light+0x1fc/0x260
[  572.508700][ T8056]  __sys_sendmsg+0x117/0x1e0
[  572.513326][ T8056]  ? __sys_sendmsg_sock+0x30/0x30
[  572.518469][ T8056]  ? xfd_validate_state+0x5d/0x180
[  572.523893][ T8056]  ? syscall_enter_from_user_mode+0x7f/0x120
[  572.530078][ T8056]  do_syscall_64+0x40/0x110
[  572.534781][ T8056]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  572.541034][ T8056] RIP: 0033:0x7fb700fd30b9
[  572.545713][ T8056] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  572.565731][ T8056] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  572.574529][ T8056] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  572.583134][ T8056] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  572.591460][ T8056] RBP: 000000000008b6ba R08: 0000000000000000 R09: 0000000000000006
[  572.600017][ T8056] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  572.608259][ T8056] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  572.616627][ T8056]  </TASK>
[  572.620041][ T8056] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  572.677537][ T8056] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  572.687218][ T8056] CPU: 1 PID: 8056 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  572.697394][ T8056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  572.707900][ T8056] Call Trace:
[  572.711248][ T8056]  <TASK>
[  572.714299][ T8056]  dump_stack_lvl+0x125/0x1b0
[  572.719015][ T8056]  sysfs_warn_dup+0x7f/0xa0
[  572.723569][ T8056]  sysfs_create_dir_ns+0x249/0x2b0
[  572.728689][ T8056]  ? sysfs_create_mount_point+0xb0/0xb0
[  572.734504][ T8056]  ? spin_bug+0x1d0/0x1d0
[  572.738835][ T8056]  ? net_namespace+0x12/0x40
[  572.743694][ T8056]  ? device_namespace+0x8d/0xc0
[  572.748658][ T8056]  kobject_add_internal+0x2c8/0x970
[  572.754328][ T8056]  kobject_add+0x16f/0x240
[  572.758769][ T8056]  ? kset_create_and_add+0x190/0x190
[  572.764154][ T8056]  ? do_raw_spin_unlock+0x173/0x230
[  572.770429][ T8056]  ? kobject_put+0xbe/0x440
[  572.775239][ T8056]  ? device_add+0xc35/0x1aa0
[  572.779865][ T8056]  device_add+0x289/0x1aa0
[  572.784307][ T8056]  ? device_initialize+0x510/0x510
[  572.789435][ T8056]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  572.796410][ T8056]  ? __init_waitqueue_head+0xca/0x150
[  572.801850][ T8056]  netdev_register_kobject+0x183/0x3f0
[  572.807742][ T8056]  register_netdevice+0xbe6/0x14b0
[  572.813145][ T8056]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  572.819095][ T8056]  ? validate_linkmsg+0x6fc/0x9c0
[  572.824406][ T8056]  br_dev_newlink+0x27/0x110
[  572.829486][ T8056]  ? br_changelink+0x1760/0x1760
[  572.835593][ T8056]  __rtnl_newlink+0x1173/0x1930
[  572.840854][ T8056]  ? rtnl_link_unregister+0x260/0x260
[  572.847303][ T8056]  rtnl_newlink+0x67/0xa0
[  572.851686][ T8056]  ? __rtnl_newlink+0x1930/0x1930
[  572.856893][ T8056]  rtnetlink_rcv_msg+0x3c7/0xe00
[  572.861856][ T8056]  ? rtnl_fill_vf+0x4a0/0x4a0
[  572.866653][ T8056]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  572.872833][ T8056]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  572.879027][ T8056]  netlink_rcv_skb+0x16b/0x440
[  572.883822][ T8056]  ? rtnl_fill_vf+0x4a0/0x4a0
[  572.889204][ T8056]  ? netlink_ack+0x1380/0x1380
[  572.893977][ T8056]  ? lock_sync+0x190/0x190
[  572.898517][ T8056]  ? netlink_deliver_tap+0x1a0/0xd00
[  572.903814][ T8056]  ? _copy_from_iter+0x2c1/0x10f0
[  572.909004][ T8056]  netlink_unicast+0x53b/0x810
[  572.914103][ T8056]  ? netlink_attachskb+0x880/0x880
[  572.919571][ T8056]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  572.925985][ T8056]  ? __phys_addr_symbol+0x30/0x70
[  572.931706][ T8056]  ? __check_object_size+0x323/0x730
[  572.937858][ T8056]  netlink_sendmsg+0x93c/0xe40
[  572.943641][ T8056]  ? netlink_unicast+0x810/0x810
[  572.949398][ T8056]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  572.956121][ T8056]  ? netlink_unicast+0x810/0x810
[  572.962041][ T8056]  __sock_sendmsg+0xd5/0x180
[  572.967312][ T8056]  ____sys_sendmsg+0x6ac/0x940
[  572.972750][ T8056]  ? copy_msghdr_from_user+0x10b/0x160
[  572.978537][ T8056]  ? kernel_sendmsg+0x50/0x50
[  572.983343][ T8056]  ? hlock_class+0x4e/0x130
[  572.988133][ T8056]  ? __lock_acquire+0x14e0/0x3b10
[  572.993280][ T8056]  ___sys_sendmsg+0x135/0x1d0
[  572.998078][ T8056]  ? do_recvmmsg+0x740/0x740
[  573.002934][ T8056]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  573.009410][ T8056]  ? find_held_lock+0x2d/0x110
[  573.014581][ T8056]  ? __fget_light+0x1fc/0x260
[  573.019440][ T8056]  __sys_sendmsg+0x117/0x1e0
[  573.024053][ T8056]  ? __sys_sendmsg_sock+0x30/0x30
[  573.029716][ T8056]  ? xfd_validate_state+0x5d/0x180
[  573.035133][ T8056]  ? syscall_enter_from_user_mode+0x7f/0x120
[  573.041221][ T8056]  do_syscall_64+0x40/0x110
[  573.045910][ T8056]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  573.052347][ T8056] RIP: 0033:0x7fb700fd30b9
[  573.056938][ T8056] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  573.077184][ T8056] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  573.086059][ T8056] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  573.094207][ T8056] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  573.102631][ T8056] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  573.111165][ T8056] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  573.119717][ T8056] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  573.128255][ T8056]  </TASK>
[  573.131669][ T8056] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  573.182207][ T8057] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  573.193299][ T8057] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  573.202612][ T8057] CPU: 1 PID: 8057 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  573.213581][ T8057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  573.224114][ T8057] Call Trace:
[  573.227506][ T8057]  <TASK>
[  573.230455][ T8057]  dump_stack_lvl+0x125/0x1b0
[  573.235240][ T8057]  sysfs_warn_dup+0x7f/0xa0
[  573.239766][ T8057]  sysfs_create_dir_ns+0x249/0x2b0
[  573.245088][ T8057]  ? sysfs_create_mount_point+0xb0/0xb0
[  573.250838][ T8057]  ? spin_bug+0x1d0/0x1d0
[  573.255192][ T8057]  ? net_namespace+0x12/0x40
[  573.260067][ T8057]  ? device_namespace+0x8d/0xc0
[  573.264985][ T8057]  kobject_add_internal+0x2c8/0x970
[  573.270235][ T8057]  kobject_add+0x16f/0x240
[  573.274764][ T8057]  ? kset_create_and_add+0x190/0x190
[  573.280169][ T8057]  ? do_raw_spin_unlock+0x173/0x230
[  573.285860][ T8057]  ? kobject_put+0xbe/0x440
[  573.290749][ T8057]  ? device_add+0xc35/0x1aa0
[  573.295724][ T8057]  device_add+0x289/0x1aa0
[  573.300414][ T8057]  ? device_initialize+0x510/0x510
[  573.305729][ T8057]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  573.313672][ T8057]  ? __init_waitqueue_head+0xca/0x150
[  573.319185][ T8057]  netdev_register_kobject+0x183/0x3f0
[  573.325477][ T8057]  register_netdevice+0xbe6/0x14b0
[  573.331066][ T8057]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  573.337439][ T8057]  ? validate_linkmsg+0x6fc/0x9c0
[  573.342668][ T8057]  br_dev_newlink+0x27/0x110
[  573.347705][ T8057]  ? br_changelink+0x1760/0x1760
[  573.352765][ T8057]  __rtnl_newlink+0x1173/0x1930
[  573.357783][ T8057]  ? rtnl_link_unregister+0x260/0x260
[  573.363261][ T8057]  rtnl_newlink+0x67/0xa0
[  573.367697][ T8057]  ? __rtnl_newlink+0x1930/0x1930
[  573.372737][ T8057]  rtnetlink_rcv_msg+0x3c7/0xe00
[  573.378092][ T8057]  ? rtnl_fill_vf+0x4a0/0x4a0
[  573.382794][ T8057]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  573.389230][ T8057]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  573.395253][ T8057]  netlink_rcv_skb+0x16b/0x440
[  573.400079][ T8057]  ? rtnl_fill_vf+0x4a0/0x4a0
[  573.404796][ T8057]  ? netlink_ack+0x1380/0x1380
[  573.409746][ T8057]  ? lock_sync+0x190/0x190
[  573.414218][ T8057]  ? netlink_deliver_tap+0x1a0/0xd00
[  573.419627][ T8057]  ? _copy_from_iter+0x2c1/0x10f0
[  573.424720][ T8057]  netlink_unicast+0x53b/0x810
[  573.429733][ T8057]  ? netlink_attachskb+0x880/0x880
[  573.435057][ T8057]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  573.441174][ T8057]  ? __phys_addr_symbol+0x30/0x70
[  573.446391][ T8057]  ? __check_object_size+0x323/0x730
[  573.451756][ T8057]  netlink_sendmsg+0x93c/0xe40
[  573.456756][ T8057]  ? netlink_unicast+0x810/0x810
[  573.461949][ T8057]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  573.467261][ T8057]  ? netlink_unicast+0x810/0x810
[  573.472307][ T8057]  __sock_sendmsg+0xd5/0x180
[  573.477187][ T8057]  ____sys_sendmsg+0x6ac/0x940
[  573.482865][ T8057]  ? copy_msghdr_from_user+0x10b/0x160
[  573.488711][ T8057]  ? kernel_sendmsg+0x50/0x50
[  573.493941][ T8057]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  573.500324][ T8057]  ___sys_sendmsg+0x135/0x1d0
[  573.505421][ T8057]  ? do_recvmmsg+0x740/0x740
[  573.510504][ T8057]  ? find_held_lock+0x2d/0x110
[  573.515515][ T8057]  ? preempt_count_sub+0x160/0x160
[  573.521028][ T8057]  ? __fget_light+0x1fc/0x260
[  573.525823][ T8057]  __sys_sendmsg+0x117/0x1e0
[  573.530518][ T8057]  ? __sys_sendmsg_sock+0x30/0x30
[  573.535553][ T8057]  ? xfd_validate_state+0x5d/0x180
[  573.540796][ T8057]  ? syscall_enter_from_user_mode+0x7f/0x120
[  573.547488][ T8057]  do_syscall_64+0x40/0x110
[  573.552100][ T8057]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  573.558005][ T8057] RIP: 0033:0x7fb700fd30b9
[  573.562697][ T8057] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  573.582502][ T8057] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  573.592511][ T8057] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  573.600912][ T8057] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  573.609437][ T8057] RBP: 000000000008bacd R08: 0000000000000000 R09: 0000000000000006
[  573.618030][ T8057] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  573.626781][ T8057] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  573.635060][ T8057]  </TASK>
[  573.638803][ T8057] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  573.716447][ T8057] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  573.726227][ T8057] CPU: 1 PID: 8057 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  573.736531][ T8057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  573.746784][ T8057] Call Trace:
[  573.750415][ T8057]  <TASK>
[  573.753701][ T8057]  dump_stack_lvl+0x125/0x1b0
[  573.758596][ T8057]  sysfs_warn_dup+0x7f/0xa0
[  573.763385][ T8057]  sysfs_create_dir_ns+0x249/0x2b0
[  573.769046][ T8057]  ? sysfs_create_mount_point+0xb0/0xb0
[  573.774618][ T8057]  ? spin_bug+0x1d0/0x1d0
[  573.779429][ T8057]  ? net_namespace+0x12/0x40
[  573.784295][ T8057]  ? device_namespace+0x8d/0xc0
[  573.789166][ T8057]  kobject_add_internal+0x2c8/0x970
[  573.794557][ T8057]  kobject_add+0x16f/0x240
[  573.799174][ T8057]  ? kset_create_and_add+0x190/0x190
[  573.804500][ T8057]  ? do_raw_spin_unlock+0x173/0x230
[  573.810010][ T8057]  ? kobject_put+0xbe/0x440
[  573.814745][ T8057]  ? device_add+0xc35/0x1aa0
[  573.819713][ T8057]  device_add+0x289/0x1aa0
[  573.824349][ T8057]  ? device_initialize+0x510/0x510
[  573.830114][ T8057]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  573.837457][ T8057]  ? __init_waitqueue_head+0xca/0x150
[  573.843571][ T8057]  netdev_register_kobject+0x183/0x3f0
[  573.849193][ T8057]  register_netdevice+0xbe6/0x14b0
[  573.854633][ T8057]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  573.860978][ T8057]  ? validate_linkmsg+0x6fc/0x9c0
[  573.866130][ T8057]  br_dev_newlink+0x27/0x110
[  573.870904][ T8057]  ? br_changelink+0x1760/0x1760
[  573.876065][ T8057]  __rtnl_newlink+0x1173/0x1930
[  573.881301][ T8057]  ? rtnl_link_unregister+0x260/0x260
[  573.886887][ T8057]  rtnl_newlink+0x67/0xa0
[  573.891227][ T8057]  ? __rtnl_newlink+0x1930/0x1930
[  573.896437][ T8057]  rtnetlink_rcv_msg+0x3c7/0xe00
[  573.901506][ T8057]  ? rtnl_fill_vf+0x4a0/0x4a0
[  573.906201][ T8057]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  573.912375][ T8057]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  573.918736][ T8057]  netlink_rcv_skb+0x16b/0x440
[  573.923616][ T8057]  ? rtnl_fill_vf+0x4a0/0x4a0
[  573.928314][ T8057]  ? netlink_ack+0x1380/0x1380
[  573.933094][ T8057]  ? lock_sync+0x190/0x190
[  573.937725][ T8057]  ? netlink_deliver_tap+0x1a0/0xd00
[  573.943904][ T8057]  ? _copy_from_iter+0x2c1/0x10f0
[  573.949824][ T8057]  netlink_unicast+0x53b/0x810
[  573.955045][ T8057]  ? netlink_attachskb+0x880/0x880
[  573.960341][ T8057]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  573.968016][ T8057]  ? __phys_addr_symbol+0x30/0x70
[  573.973255][ T8057]  ? __check_object_size+0x323/0x730
[  573.978835][ T8057]  netlink_sendmsg+0x93c/0xe40
[  573.983986][ T8057]  ? netlink_unicast+0x810/0x810
[  573.988942][ T8057]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  573.994247][ T8057]  ? netlink_unicast+0x810/0x810
[  573.999285][ T8057]  __sock_sendmsg+0xd5/0x180
[  574.003998][ T8057]  ____sys_sendmsg+0x6ac/0x940
[  574.008872][ T8057]  ? copy_msghdr_from_user+0x10b/0x160
[  574.014448][ T8057]  ? kernel_sendmsg+0x50/0x50
[  574.019147][ T8057]  ? hlock_class+0x4e/0x130
[  574.023675][ T8057]  ? __lock_acquire+0x14e0/0x3b10
[  574.028745][ T8057]  ___sys_sendmsg+0x135/0x1d0
[  574.033456][ T8057]  ? do_recvmmsg+0x740/0x740
[  574.038407][ T8057]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  574.044571][ T8057]  ? find_held_lock+0x2d/0x110
[  574.049374][ T8057]  ? __fget_light+0x1fc/0x260
[  574.054077][ T8057]  __sys_sendmsg+0x117/0x1e0
[  574.058698][ T8057]  ? __sys_sendmsg_sock+0x30/0x30
[  574.063780][ T8057]  ? xfd_validate_state+0x5d/0x180
[  574.069379][ T8057]  ? syscall_enter_from_user_mode+0x7f/0x120
[  574.075949][ T8057]  do_syscall_64+0x40/0x110
[  574.080559][ T8057]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  574.086481][ T8057] RIP: 0033:0x7fb700fd30b9
[  574.090919][ T8057] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  574.111791][ T8057] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  574.120398][ T8057] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  574.128834][ T8057] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  574.136983][ T8057] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  574.145130][ T8057] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  574.153366][ T8057] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  574.161368][ T8057]  </TASK>
[  574.165329][ T8057] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  574.224981][ T8058] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  574.236835][ T8058] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  574.248638][ T8058] CPU: 0 PID: 8058 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  574.259544][ T8058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  574.269705][ T8058] Call Trace:
[  574.273379][ T8058]  <TASK>
[  574.276409][ T8058]  dump_stack_lvl+0x125/0x1b0
[  574.281112][ T8058]  sysfs_warn_dup+0x7f/0xa0
[  574.285678][ T8058]  sysfs_create_dir_ns+0x249/0x2b0
[  574.290830][ T8058]  ? sysfs_create_mount_point+0xb0/0xb0
[  574.296411][ T8058]  ? spin_bug+0x1d0/0x1d0
[  574.301110][ T8058]  ? net_namespace+0x12/0x40
[  574.305815][ T8058]  ? device_namespace+0x8d/0xc0
[  574.310876][ T8058]  kobject_add_internal+0x2c8/0x970
[  574.316287][ T8058]  kobject_add+0x16f/0x240
[  574.320742][ T8058]  ? kset_create_and_add+0x190/0x190
[  574.326056][ T8058]  ? do_raw_spin_unlock+0x173/0x230
[  574.331457][ T8058]  ? kobject_put+0xbe/0x440
[  574.336442][ T8058]  ? device_add+0xc35/0x1aa0
[  574.341270][ T8058]  device_add+0x289/0x1aa0
[  574.345726][ T8058]  ? device_initialize+0x510/0x510
[  574.350960][ T8058]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  574.358195][ T8058]  ? __init_waitqueue_head+0xca/0x150
[  574.363610][ T8058]  netdev_register_kobject+0x183/0x3f0
[  574.369114][ T8058]  register_netdevice+0xbe6/0x14b0
[  574.374266][ T8058]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  574.380187][ T8058]  ? validate_linkmsg+0x6fc/0x9c0
[  574.386217][ T8058]  br_dev_newlink+0x27/0x110
[  574.390917][ T8058]  ? br_changelink+0x1760/0x1760
[  574.395961][ T8058]  __rtnl_newlink+0x1173/0x1930
[  574.400852][ T8058]  ? rtnl_link_unregister+0x260/0x260
[  574.406381][ T8058]  rtnl_newlink+0x67/0xa0
[  574.410734][ T8058]  ? __rtnl_newlink+0x1930/0x1930
[  574.415955][ T8058]  rtnetlink_rcv_msg+0x3c7/0xe00
[  574.421011][ T8058]  ? rtnl_fill_vf+0x4a0/0x4a0
[  574.425887][ T8058]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  574.432069][ T8058]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  574.438093][ T8058]  netlink_rcv_skb+0x16b/0x440
[  574.442971][ T8058]  ? rtnl_fill_vf+0x4a0/0x4a0
[  574.447812][ T8058]  ? netlink_ack+0x1380/0x1380
[  574.452714][ T8058]  ? lock_sync+0x190/0x190
[  574.457192][ T8058]  ? netlink_deliver_tap+0x1a0/0xd00
[  574.462611][ T8058]  ? _copy_from_iter+0x2c1/0x10f0
[  574.467791][ T8058]  netlink_unicast+0x53b/0x810
[  574.472671][ T8058]  ? netlink_attachskb+0x880/0x880
[  574.478443][ T8058]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  574.484721][ T8058]  ? __phys_addr_symbol+0x30/0x70
[  574.490414][ T8058]  ? __check_object_size+0x323/0x730
[  574.496069][ T8058]  netlink_sendmsg+0x93c/0xe40
[  574.501077][ T8058]  ? netlink_unicast+0x810/0x810
[  574.506715][ T8058]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  574.512328][ T8058]  ? netlink_unicast+0x810/0x810
[  574.518527][ T8058]  __sock_sendmsg+0xd5/0x180
[  574.523635][ T8058]  ____sys_sendmsg+0x6ac/0x940
[  574.528633][ T8058]  ? copy_msghdr_from_user+0x10b/0x160
[  574.534492][ T8058]  ? kernel_sendmsg+0x50/0x50
[  574.539401][ T8058]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  574.546312][ T8058]  ___sys_sendmsg+0x135/0x1d0
[  574.551456][ T8058]  ? do_recvmmsg+0x740/0x740
[  574.560253][ T8058]  ? find_held_lock+0x2d/0x110
[  574.565518][ T8058]  ? preempt_count_sub+0x160/0x160
[  574.570943][ T8058]  ? __fget_light+0x1fc/0x260
[  574.576362][ T8058]  __sys_sendmsg+0x117/0x1e0
[  574.581544][ T8058]  ? __sys_sendmsg_sock+0x30/0x30
[  574.587021][ T8058]  ? syscall_enter_from_user_mode+0x7f/0x120
[  574.594164][ T8058]  do_syscall_64+0x40/0x110
[  574.599071][ T8058]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  574.605706][ T8058] RIP: 0033:0x7fb700fd30b9
[  574.610161][ T8058] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  574.630170][ T8058] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  574.638577][ T8058] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  574.646713][ T8058] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  574.654718][ T8058] RBP: 000000000008bed1 R08: 0000000000000000 R09: 0000000000000006
[  574.662794][ T8058] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  574.670985][ T8058] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  574.679479][ T8058]  </TASK>
[  574.684322][ T8058] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  574.776526][ T8058] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  574.786381][ T8058] CPU: 0 PID: 8058 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  574.796790][ T8058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  574.807063][ T8058] Call Trace:
[  574.810428][ T8058]  <TASK>
[  574.813470][ T8058]  dump_stack_lvl+0x125/0x1b0
[  574.818414][ T8058]  sysfs_warn_dup+0x7f/0xa0
[  574.823031][ T8058]  sysfs_create_dir_ns+0x249/0x2b0
[  574.828373][ T8058]  ? sysfs_create_mount_point+0xb0/0xb0
[  574.834045][ T8058]  ? spin_bug+0x1d0/0x1d0
[  574.838564][ T8058]  ? net_namespace+0x12/0x40
[  574.843355][ T8058]  ? device_namespace+0x8d/0xc0
[  574.848612][ T8058]  kobject_add_internal+0x2c8/0x970
[  574.854058][ T8058]  kobject_add+0x16f/0x240
[  574.858936][ T8058]  ? kset_create_and_add+0x190/0x190
[  574.864236][ T8058]  ? do_raw_spin_unlock+0x173/0x230
[  574.869539][ T8058]  ? kobject_put+0xbe/0x440
[  574.874411][ T8058]  ? device_add+0xc35/0x1aa0
[  574.879023][ T8058]  device_add+0x289/0x1aa0
[  574.883446][ T8058]  ? device_initialize+0x510/0x510
[  574.888644][ T8058]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  574.895515][ T8058]  ? __init_waitqueue_head+0xca/0x150
[  574.900927][ T8058]  netdev_register_kobject+0x183/0x3f0
[  574.906592][ T8058]  register_netdevice+0xbe6/0x14b0
[  574.912181][ T8058]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  574.918717][ T8058]  ? validate_linkmsg+0x6fc/0x9c0
[  574.924214][ T8058]  br_dev_newlink+0x27/0x110
[  574.929123][ T8058]  ? br_changelink+0x1760/0x1760
[  574.934826][ T8058]  __rtnl_newlink+0x1173/0x1930
[  574.940065][ T8058]  ? rtnl_link_unregister+0x260/0x260
[  574.945559][ T8058]  rtnl_newlink+0x67/0xa0
[  574.950531][ T8058]  ? __rtnl_newlink+0x1930/0x1930
[  574.955822][ T8058]  rtnetlink_rcv_msg+0x3c7/0xe00
[  574.960971][ T8058]  ? rtnl_fill_vf+0x4a0/0x4a0
[  574.965840][ T8058]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  574.972369][ T8058]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  574.978819][ T8058]  netlink_rcv_skb+0x16b/0x440
[  574.983804][ T8058]  ? rtnl_fill_vf+0x4a0/0x4a0
[  574.988588][ T8058]  ? netlink_ack+0x1380/0x1380
[  574.993544][ T8058]  ? lock_sync+0x190/0x190
[  574.998093][ T8058]  ? netlink_deliver_tap+0x1a0/0xd00
[  575.003385][ T8058]  ? _copy_from_iter+0x2c1/0x10f0
[  575.008432][ T8058]  netlink_unicast+0x53b/0x810
[  575.013365][ T8058]  ? netlink_attachskb+0x880/0x880
[  575.018565][ T8058]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  575.024659][ T8058]  ? __phys_addr_symbol+0x30/0x70
[  575.029689][ T8058]  ? __check_object_size+0x323/0x730
[  575.035244][ T8058]  netlink_sendmsg+0x93c/0xe40
[  575.040134][ T8058]  ? netlink_unicast+0x810/0x810
[  575.045258][ T8058]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  575.050722][ T8058]  ? netlink_unicast+0x810/0x810
[  575.055666][ T8058]  __sock_sendmsg+0xd5/0x180
[  575.060356][ T8058]  ____sys_sendmsg+0x6ac/0x940
[  575.065316][ T8058]  ? copy_msghdr_from_user+0x10b/0x160
[  575.071449][ T8058]  ? kernel_sendmsg+0x50/0x50
[  575.076149][ T8058]  ? hlock_class+0x4e/0x130
[  575.080761][ T8058]  ? __lock_acquire+0x14e0/0x3b10
[  575.086081][ T8058]  ___sys_sendmsg+0x135/0x1d0
[  575.090779][ T8058]  ? do_recvmmsg+0x740/0x740
[  575.095377][ T8058]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  575.101683][ T8058]  ? find_held_lock+0x2d/0x110
[  575.106523][ T8058]  ? __fget_light+0x1fc/0x260
[  575.111647][ T8058]  __sys_sendmsg+0x117/0x1e0
[  575.116565][ T8058]  ? __sys_sendmsg_sock+0x30/0x30
[  575.121963][ T8058]  ? __do_sys_rseq+0x750/0x750
[  575.127453][ T8058]  ? syscall_enter_from_user_mode+0x7f/0x120
[  575.133852][ T8058]  do_syscall_64+0x40/0x110
[  575.138474][ T8058]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  575.144656][ T8058] RIP: 0033:0x7fb700fd30b9
[  575.149532][ T8058] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  575.169597][ T8058] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  575.178274][ T8058] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  575.186686][ T8058] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  575.194850][ T8058] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  575.203170][ T8058] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  575.211333][ T8058] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  575.219577][ T8058]  </TASK>
[  575.223672][ T8058] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  575.271306][ T8059] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  575.281799][ T8059] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  575.291401][ T8059] CPU: 1 PID: 8059 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  575.301863][ T8059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  575.311935][ T8059] Call Trace:
[  575.315214][ T8059]  <TASK>
[  575.318143][ T8059]  dump_stack_lvl+0x125/0x1b0
[  575.322841][ T8059]  sysfs_warn_dup+0x7f/0xa0
[  575.327391][ T8059]  sysfs_create_dir_ns+0x249/0x2b0
[  575.332691][ T8059]  ? sysfs_create_mount_point+0xb0/0xb0
[  575.338609][ T8059]  ? spin_bug+0x1d0/0x1d0
[  575.343042][ T8059]  ? net_namespace+0x12/0x40
[  575.348018][ T8059]  ? device_namespace+0x8d/0xc0
[  575.352985][ T8059]  kobject_add_internal+0x2c8/0x970
[  575.358374][ T8059]  kobject_add+0x16f/0x240
[  575.363062][ T8059]  ? kset_create_and_add+0x190/0x190
[  575.368620][ T8059]  ? do_raw_spin_unlock+0x173/0x230
[  575.373912][ T8059]  ? kobject_put+0xbe/0x440
[  575.378770][ T8059]  ? device_add+0xc35/0x1aa0
[  575.383455][ T8059]  device_add+0x289/0x1aa0
[  575.387878][ T8059]  ? device_initialize+0x510/0x510
[  575.392990][ T8059]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  575.399933][ T8059]  ? __init_waitqueue_head+0xca/0x150
[  575.405336][ T8059]  netdev_register_kobject+0x183/0x3f0
[  575.410920][ T8059]  register_netdevice+0xbe6/0x14b0
[  575.416173][ T8059]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  575.422182][ T8059]  ? validate_linkmsg+0x6fc/0x9c0
[  575.427250][ T8059]  br_dev_newlink+0x27/0x110
[  575.432217][ T8059]  ? br_changelink+0x1760/0x1760
[  575.437189][ T8059]  __rtnl_newlink+0x1173/0x1930
[  575.442078][ T8059]  ? rtnl_link_unregister+0x260/0x260
[  575.447579][ T8059]  rtnl_newlink+0x67/0xa0
[  575.451916][ T8059]  ? __rtnl_newlink+0x1930/0x1930
[  575.457341][ T8059]  rtnetlink_rcv_msg+0x3c7/0xe00
[  575.462335][ T8059]  ? rtnl_fill_vf+0x4a0/0x4a0
[  575.467023][ T8059]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  575.473025][ T8059]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  575.479019][ T8059]  netlink_rcv_skb+0x16b/0x440
[  575.483885][ T8059]  ? rtnl_fill_vf+0x4a0/0x4a0
[  575.488754][ T8059]  ? netlink_ack+0x1380/0x1380
[  575.493671][ T8059]  ? lock_sync+0x190/0x190
[  575.498298][ T8059]  ? netlink_deliver_tap+0x1a0/0xd00
[  575.503778][ T8059]  ? _copy_from_iter+0x2c1/0x10f0
[  575.509269][ T8059]  netlink_unicast+0x53b/0x810
[  575.514592][ T8059]  ? netlink_attachskb+0x880/0x880
[  575.519736][ T8059]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  575.526725][ T8059]  ? __phys_addr_symbol+0x30/0x70
[  575.531875][ T8059]  ? __check_object_size+0x323/0x730
[  575.537515][ T8059]  netlink_sendmsg+0x93c/0xe40
[  575.542578][ T8059]  ? netlink_unicast+0x810/0x810
[  575.548103][ T8059]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  575.553675][ T8059]  ? netlink_unicast+0x810/0x810
[  575.558791][ T8059]  __sock_sendmsg+0xd5/0x180
[  575.563496][ T8059]  ____sys_sendmsg+0x6ac/0x940
[  575.568462][ T8059]  ? copy_msghdr_from_user+0x10b/0x160
[  575.574118][ T8059]  ? kernel_sendmsg+0x50/0x50
[  575.578829][ T8059]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  575.585030][ T8059]  ___sys_sendmsg+0x135/0x1d0
[  575.589734][ T8059]  ? do_recvmmsg+0x740/0x740
[  575.594337][ T8059]  ? find_held_lock+0x2d/0x110
[  575.599126][ T8059]  ? preempt_count_sub+0x160/0x160
[  575.604426][ T8059]  ? __fget_light+0x1fc/0x260
[  575.609231][ T8059]  __sys_sendmsg+0x117/0x1e0
[  575.614355][ T8059]  ? __sys_sendmsg_sock+0x30/0x30
[  575.619621][ T8059]  ? syscall_enter_from_user_mode+0x7f/0x120
[  575.625620][ T8059]  do_syscall_64+0x40/0x110
[  575.630135][ T8059]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  575.636041][ T8059] RIP: 0033:0x7fb700fd30b9
[  575.640635][ T8059] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  575.660510][ T8059] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  575.669212][ T8059] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  575.677207][ T8059] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  575.685364][ T8059] RBP: 000000000008c2e1 R08: 0000000000000000 R09: 0000000000000006
[  575.693448][ T8059] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  575.701888][ T8059] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  575.710050][ T8059]  </TASK>
[  575.715100][ T8059] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  575.787095][ T8059] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  575.796790][ T8059] CPU: 1 PID: 8059 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  575.807404][ T8059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  575.818326][ T8059] Call Trace:
[  575.821699][ T8059]  <TASK>
[  575.825209][ T8059]  dump_stack_lvl+0x125/0x1b0
[  575.830072][ T8059]  sysfs_warn_dup+0x7f/0xa0
[  575.835194][ T8059]  sysfs_create_dir_ns+0x249/0x2b0
[  575.840641][ T8059]  ? sysfs_create_mount_point+0xb0/0xb0
[  575.846891][ T8059]  ? spin_bug+0x1d0/0x1d0
[  575.851494][ T8059]  ? net_namespace+0x12/0x40
[  575.856179][ T8059]  ? device_namespace+0x8d/0xc0
[  575.861137][ T8059]  kobject_add_internal+0x2c8/0x970
[  575.866453][ T8059]  kobject_add+0x16f/0x240
[  575.870924][ T8059]  ? kset_create_and_add+0x190/0x190
[  575.876403][ T8059]  ? do_raw_spin_unlock+0x173/0x230
[  575.881612][ T8059]  ? kobject_put+0xbe/0x440
[  575.886143][ T8059]  ? device_add+0xc35/0x1aa0
[  575.890765][ T8059]  device_add+0x289/0x1aa0
[  575.895291][ T8059]  ? device_initialize+0x510/0x510
[  575.900502][ T8059]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  575.907458][ T8059]  ? __init_waitqueue_head+0xca/0x150
[  575.913110][ T8059]  netdev_register_kobject+0x183/0x3f0
[  575.918769][ T8059]  register_netdevice+0xbe6/0x14b0
[  575.924076][ T8059]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  575.930228][ T8059]  ? validate_linkmsg+0x6fc/0x9c0
[  575.935890][ T8059]  br_dev_newlink+0x27/0x110
[  575.940847][ T8059]  ? br_changelink+0x1760/0x1760
[  575.945965][ T8059]  __rtnl_newlink+0x1173/0x1930
[  575.951070][ T8059]  ? rtnl_link_unregister+0x260/0x260
[  575.956755][ T8059]  rtnl_newlink+0x67/0xa0
[  575.961094][ T8059]  ? __rtnl_newlink+0x1930/0x1930
[  575.966309][ T8059]  rtnetlink_rcv_msg+0x3c7/0xe00
[  575.971259][ T8059]  ? rtnl_fill_vf+0x4a0/0x4a0
[  575.976131][ T8059]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  575.982225][ T8059]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  575.988225][ T8059]  netlink_rcv_skb+0x16b/0x440
[  575.993096][ T8059]  ? rtnl_fill_vf+0x4a0/0x4a0
[  575.997983][ T8059]  ? netlink_ack+0x1380/0x1380
[  576.002882][ T8059]  ? lock_sync+0x190/0x190
[  576.007424][ T8059]  ? netlink_deliver_tap+0x1a0/0xd00
[  576.012986][ T8059]  ? _copy_from_iter+0x2c1/0x10f0
[  576.018384][ T8059]  netlink_unicast+0x53b/0x810
[  576.023250][ T8059]  ? netlink_attachskb+0x880/0x880
[  576.028443][ T8059]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  576.034353][ T8059]  ? __phys_addr_symbol+0x30/0x70
[  576.039591][ T8059]  ? __check_object_size+0x323/0x730
[  576.045073][ T8059]  netlink_sendmsg+0x93c/0xe40
[  576.050033][ T8059]  ? netlink_unicast+0x810/0x810
[  576.055082][ T8059]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  576.060473][ T8059]  ? netlink_unicast+0x810/0x810
[  576.065621][ T8059]  __sock_sendmsg+0xd5/0x180
[  576.070515][ T8059]  ____sys_sendmsg+0x6ac/0x940
[  576.075674][ T8059]  ? copy_msghdr_from_user+0x10b/0x160
[  576.081342][ T8059]  ? kernel_sendmsg+0x50/0x50
[  576.086074][ T8059]  ? hlock_class+0x4e/0x130
[  576.090610][ T8059]  ? __lock_acquire+0x14e0/0x3b10
[  576.095660][ T8059]  ___sys_sendmsg+0x135/0x1d0
[  576.100447][ T8059]  ? do_recvmmsg+0x740/0x740
[  576.105079][ T8059]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  576.111188][ T8059]  ? find_held_lock+0x2d/0x110
[  576.116505][ T8059]  ? __fget_light+0x1fc/0x260
[  576.121481][ T8059]  __sys_sendmsg+0x117/0x1e0
[  576.126115][ T8059]  ? __sys_sendmsg_sock+0x30/0x30
[  576.131162][ T8059]  ? xfd_validate_state+0x5d/0x180
[  576.136415][ T8059]  ? syscall_enter_from_user_mode+0x7f/0x120
[  576.142933][ T8059]  do_syscall_64+0x40/0x110
[  576.147553][ T8059]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  576.153761][ T8059] RIP: 0033:0x7fb700fd30b9
[  576.158441][ T8059] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  576.178484][ T8059] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  576.186900][ T8059] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  576.194960][ T8059] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  576.202940][ T8059] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  576.211084][ T8059] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  576.219055][ T8059] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  576.227128][ T8059]  </TASK>
[  576.230627][ T8059] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  576.297023][ T8060] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  576.307596][ T8060] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  576.316934][ T8060] CPU: 1 PID: 8060 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  576.327189][ T8060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  576.337465][ T8060] Call Trace:
[  576.340855][ T8060]  <TASK>
[  576.343891][ T8060]  dump_stack_lvl+0x125/0x1b0
[  576.348593][ T8060]  sysfs_warn_dup+0x7f/0xa0
[  576.353481][ T8060]  sysfs_create_dir_ns+0x249/0x2b0
[  576.358621][ T8060]  ? sysfs_create_mount_point+0xb0/0xb0
[  576.364616][ T8060]  ? spin_bug+0x1d0/0x1d0
[  576.368964][ T8060]  ? net_namespace+0x12/0x40
[  576.373647][ T8060]  ? device_namespace+0x8d/0xc0
[  576.378690][ T8060]  kobject_add_internal+0x2c8/0x970
[  576.384083][ T8060]  kobject_add+0x16f/0x240
[  576.388609][ T8060]  ? kset_create_and_add+0x190/0x190
[  576.394339][ T8060]  ? do_raw_spin_unlock+0x173/0x230
[  576.399832][ T8060]  ? kobject_put+0xbe/0x440
[  576.404447][ T8060]  ? device_add+0xc35/0x1aa0
[  576.409094][ T8060]  device_add+0x289/0x1aa0
[  576.413887][ T8060]  ? device_initialize+0x510/0x510
[  576.419350][ T8060]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  576.426921][ T8060]  ? __init_waitqueue_head+0xca/0x150
[  576.432764][ T8060]  netdev_register_kobject+0x183/0x3f0
[  576.438384][ T8060]  register_netdevice+0xbe6/0x14b0
[  576.443510][ T8060]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  576.449429][ T8060]  ? validate_linkmsg+0x6fc/0x9c0
[  576.454587][ T8060]  br_dev_newlink+0x27/0x110
[  576.459711][ T8060]  ? br_changelink+0x1760/0x1760
[  576.464747][ T8060]  __rtnl_newlink+0x1173/0x1930
[  576.469620][ T8060]  ? rtnl_link_unregister+0x260/0x260
[  576.475258][ T8060]  rtnl_newlink+0x67/0xa0
[  576.479821][ T8060]  ? __rtnl_newlink+0x1930/0x1930
[  576.485545][ T8060]  rtnetlink_rcv_msg+0x3c7/0xe00
[  576.490541][ T8060]  ? rtnl_fill_vf+0x4a0/0x4a0
[  576.495490][ T8060]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  576.501509][ T8060]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  576.507515][ T8060]  netlink_rcv_skb+0x16b/0x440
[  576.512297][ T8060]  ? rtnl_fill_vf+0x4a0/0x4a0
[  576.517028][ T8060]  ? netlink_ack+0x1380/0x1380
[  576.521926][ T8060]  ? lock_sync+0x190/0x190
[  576.526475][ T8060]  ? netlink_deliver_tap+0x1a0/0xd00
[  576.531787][ T8060]  ? _copy_from_iter+0x2c1/0x10f0
[  576.536916][ T8060]  netlink_unicast+0x53b/0x810
[  576.543014][ T8060]  ? netlink_attachskb+0x880/0x880
[  576.548311][ T8060]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  576.554226][ T8060]  ? __phys_addr_symbol+0x30/0x70
[  576.559303][ T8060]  ? __check_object_size+0x323/0x730
[  576.564801][ T8060]  netlink_sendmsg+0x93c/0xe40
[  576.569963][ T8060]  ? netlink_unicast+0x810/0x810
[  576.575092][ T8060]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  576.580569][ T8060]  ? netlink_unicast+0x810/0x810
[  576.585613][ T8060]  __sock_sendmsg+0xd5/0x180
[  576.590589][ T8060]  ____sys_sendmsg+0x6ac/0x940
[  576.595361][ T8060]  ? copy_msghdr_from_user+0x10b/0x160
[  576.600923][ T8060]  ? kernel_sendmsg+0x50/0x50
[  576.605877][ T8060]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  576.612410][ T8060]  ___sys_sendmsg+0x135/0x1d0
[  576.617105][ T8060]  ? do_recvmmsg+0x740/0x740
[  576.621917][ T8060]  ? find_held_lock+0x2d/0x110
[  576.626968][ T8060]  ? preempt_count_sub+0x160/0x160
[  576.632278][ T8060]  ? __fget_light+0x1fc/0x260
[  576.637574][ T8060]  __sys_sendmsg+0x117/0x1e0
[  576.642352][ T8060]  ? __sys_sendmsg_sock+0x30/0x30
[  576.647502][ T8060]  ? syscall_enter_from_user_mode+0x7f/0x120
[  576.653846][ T8060]  do_syscall_64+0x40/0x110
[  576.658402][ T8060]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  576.664354][ T8060] RIP: 0033:0x7fb700fd30b9
[  576.668953][ T8060] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  576.689103][ T8060] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  576.698251][ T8060] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  576.706413][ T8060] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  576.714386][ T8060] RBP: 000000000008c6fa R08: 0000000000000000 R09: 0000000000000006
[  576.722572][ T8060] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  576.730649][ T8060] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  576.738840][ T8060]  </TASK>
[  576.742416][ T8060] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  576.817152][ T8060] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  576.827144][ T8060] CPU: 1 PID: 8060 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  576.837860][ T8060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  576.850079][ T8060] Call Trace:
[  576.853472][ T8060]  <TASK>
[  576.856502][ T8060]  dump_stack_lvl+0x125/0x1b0
[  576.861287][ T8060]  sysfs_warn_dup+0x7f/0xa0
[  576.865887][ T8060]  sysfs_create_dir_ns+0x249/0x2b0
[  576.871088][ T8060]  ? sysfs_create_mount_point+0xb0/0xb0
[  576.876914][ T8060]  ? spin_bug+0x1d0/0x1d0
[  576.881248][ T8060]  ? net_namespace+0x12/0x40
[  576.885866][ T8060]  ? device_namespace+0x8d/0xc0
[  576.890904][ T8060]  kobject_add_internal+0x2c8/0x970
[  576.896132][ T8060]  kobject_add+0x16f/0x240
[  576.900859][ T8060]  ? kset_create_and_add+0x190/0x190
[  576.906175][ T8060]  ? do_raw_spin_unlock+0x173/0x230
[  576.911707][ T8060]  ? kobject_put+0xbe/0x440
[  576.916583][ T8060]  ? device_add+0xc35/0x1aa0
[  576.921963][ T8060]  device_add+0x289/0x1aa0
[  576.926593][ T8060]  ? device_initialize+0x510/0x510
[  576.932235][ T8060]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  576.939627][ T8060]  ? __init_waitqueue_head+0xca/0x150
[  576.945217][ T8060]  netdev_register_kobject+0x183/0x3f0
[  576.951130][ T8060]  register_netdevice+0xbe6/0x14b0
[  576.956460][ T8060]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  576.962640][ T8060]  ? validate_linkmsg+0x6fc/0x9c0
[  576.967765][ T8060]  br_dev_newlink+0x27/0x110
[  576.972538][ T8060]  ? br_changelink+0x1760/0x1760
[  576.977662][ T8060]  __rtnl_newlink+0x1173/0x1930
[  576.982708][ T8060]  ? rtnl_link_unregister+0x260/0x260
[  576.988461][ T8060]  rtnl_newlink+0x67/0xa0
[  576.992873][ T8060]  ? __rtnl_newlink+0x1930/0x1930
[  576.998050][ T8060]  rtnetlink_rcv_msg+0x3c7/0xe00
[  577.003260][ T8060]  ? rtnl_fill_vf+0x4a0/0x4a0
[  577.007944][ T8060]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  577.014202][ T8060]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  577.020285][ T8060]  netlink_rcv_skb+0x16b/0x440
[  577.025149][ T8060]  ? rtnl_fill_vf+0x4a0/0x4a0
[  577.031496][ T8060]  ? netlink_ack+0x1380/0x1380
[  577.036646][ T8060]  ? lock_sync+0x190/0x190
[  577.041844][ T8060]  ? netlink_deliver_tap+0x1a0/0xd00
[  577.047227][ T8060]  ? _copy_from_iter+0x2c1/0x10f0
[  577.052614][ T8060]  netlink_unicast+0x53b/0x810
[  577.057567][ T8060]  ? netlink_attachskb+0x880/0x880
[  577.062695][ T8060]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  577.068690][ T8060]  ? __phys_addr_symbol+0x30/0x70
[  577.074329][ T8060]  ? __check_object_size+0x323/0x730
[  577.079626][ T8060]  netlink_sendmsg+0x93c/0xe40
[  577.084549][ T8060]  ? netlink_unicast+0x810/0x810
[  577.089676][ T8060]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  577.095227][ T8060]  ? netlink_unicast+0x810/0x810
[  577.100182][ T8060]  __sock_sendmsg+0xd5/0x180
[  577.104954][ T8060]  ____sys_sendmsg+0x6ac/0x940
[  577.110113][ T8060]  ? copy_msghdr_from_user+0x10b/0x160
[  577.115671][ T8060]  ? kernel_sendmsg+0x50/0x50
[  577.120804][ T8060]  ? hlock_class+0x4e/0x130
[  577.125316][ T8060]  ? __lock_acquire+0x14e0/0x3b10
[  577.130447][ T8060]  ___sys_sendmsg+0x135/0x1d0
[  577.135327][ T8060]  ? do_recvmmsg+0x740/0x740
[  577.140209][ T8060]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  577.146531][ T8060]  ? find_held_lock+0x2d/0x110
[  577.151516][ T8060]  ? __fget_light+0x1fc/0x260
[  577.156465][ T8060]  __sys_sendmsg+0x117/0x1e0
[  577.161068][ T8060]  ? __sys_sendmsg_sock+0x30/0x30
[  577.166103][ T8060]  ? xfd_validate_state+0x5d/0x180
[  577.171330][ T8060]  ? syscall_enter_from_user_mode+0x7f/0x120
[  577.177410][ T8060]  do_syscall_64+0x40/0x110
[  577.181925][ T8060]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  577.187919][ T8060] RIP: 0033:0x7fb700fd30b9
[  577.192336][ T8060] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  577.212398][ T8060] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  577.220825][ T8060] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  577.228972][ T8060] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  577.236942][ T8060] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  577.245005][ T8060] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  577.253160][ T8060] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  577.261323][ T8060]  </TASK>
[  577.264754][ T8060] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  577.311749][ T8061] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  577.322145][ T8061] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  577.331615][ T8061] CPU: 1 PID: 8061 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  577.341967][ T8061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  577.352471][ T8061] Call Trace:
[  577.356016][ T8061]  <TASK>
[  577.359046][ T8061]  dump_stack_lvl+0x125/0x1b0
[  577.364095][ T8061]  sysfs_warn_dup+0x7f/0xa0
[  577.368616][ T8061]  sysfs_create_dir_ns+0x249/0x2b0
[  577.373736][ T8061]  ? sysfs_create_mount_point+0xb0/0xb0
[  577.379394][ T8061]  ? spin_bug+0x1d0/0x1d0
[  577.383814][ T8061]  ? net_namespace+0x12/0x40
[  577.389218][ T8061]  ? device_namespace+0x8d/0xc0
[  577.394185][ T8061]  kobject_add_internal+0x2c8/0x970
[  577.399576][ T8061]  kobject_add+0x16f/0x240
[  577.404016][ T8061]  ? kset_create_and_add+0x190/0x190
[  577.409771][ T8061]  ? do_raw_spin_unlock+0x173/0x230
[  577.415525][ T8061]  ? kobject_put+0xbe/0x440
[  577.420231][ T8061]  ? device_add+0xc35/0x1aa0
[  577.424921][ T8061]  device_add+0x289/0x1aa0
[  577.429692][ T8061]  ? device_initialize+0x510/0x510
[  577.435087][ T8061]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  577.441961][ T8061]  ? __init_waitqueue_head+0xca/0x150
[  577.447436][ T8061]  netdev_register_kobject+0x183/0x3f0
[  577.453034][ T8061]  register_netdevice+0xbe6/0x14b0
[  577.458193][ T8061]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  577.464207][ T8061]  ? validate_linkmsg+0x6fc/0x9c0
[  577.471692][ T8061]  br_dev_newlink+0x27/0x110
[  577.476412][ T8061]  ? br_changelink+0x1760/0x1760
[  577.481647][ T8061]  __rtnl_newlink+0x1173/0x1930
[  577.486795][ T8061]  ? rtnl_link_unregister+0x260/0x260
[  577.493292][ T8061]  rtnl_newlink+0x67/0xa0
[  577.498068][ T8061]  ? __rtnl_newlink+0x1930/0x1930
[  577.503384][ T8061]  rtnetlink_rcv_msg+0x3c7/0xe00
[  577.508508][ T8061]  ? rtnl_fill_vf+0x4a0/0x4a0
[  577.513196][ T8061]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  577.519362][ T8061]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  577.525500][ T8061]  netlink_rcv_skb+0x16b/0x440
[  577.530374][ T8061]  ? rtnl_fill_vf+0x4a0/0x4a0
[  577.535412][ T8061]  ? netlink_ack+0x1380/0x1380
[  577.540194][ T8061]  ? lock_sync+0x190/0x190
[  577.544749][ T8061]  ? netlink_deliver_tap+0x1a0/0xd00
[  577.550317][ T8061]  ? _copy_from_iter+0x2c1/0x10f0
[  577.555450][ T8061]  netlink_unicast+0x53b/0x810
[  577.560318][ T8061]  ? netlink_attachskb+0x880/0x880
[  577.565967][ T8061]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  577.571893][ T8061]  ? __phys_addr_symbol+0x30/0x70
[  577.577102][ T8061]  ? __check_object_size+0x323/0x730
[  577.582424][ T8061]  netlink_sendmsg+0x93c/0xe40
[  577.587296][ T8061]  ? netlink_unicast+0x810/0x810
[  577.592260][ T8061]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  577.597558][ T8061]  ? netlink_unicast+0x810/0x810
[  577.602776][ T8061]  __sock_sendmsg+0xd5/0x180
[  577.607419][ T8061]  ____sys_sendmsg+0x6ac/0x940
[  577.612426][ T8061]  ? copy_msghdr_from_user+0x10b/0x160
[  577.617945][ T8061]  ? kernel_sendmsg+0x50/0x50
[  577.622753][ T8061]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  577.628754][ T8061]  ___sys_sendmsg+0x135/0x1d0
[  577.633446][ T8061]  ? do_recvmmsg+0x740/0x740
[  577.638078][ T8061]  ? find_held_lock+0x2d/0x110
[  577.642950][ T8061]  ? preempt_count_sub+0x160/0x160
[  577.648165][ T8061]  ? __fget_light+0x1fc/0x260
[  577.652851][ T8061]  __sys_sendmsg+0x117/0x1e0
[  577.657626][ T8061]  ? __sys_sendmsg_sock+0x30/0x30
[  577.662771][ T8061]  ? syscall_enter_from_user_mode+0x7f/0x120
[  577.668772][ T8061]  do_syscall_64+0x40/0x110
[  577.673382][ T8061]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  577.679753][ T8061] RIP: 0033:0x7fb700fd30b9
[  577.684404][ T8061] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  577.704727][ T8061] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  577.713145][ T8061] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  577.721226][ T8061] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  577.729283][ T8061] RBP: 000000000008cafc R08: 0000000000000000 R09: 0000000000000006
[  577.737348][ T8061] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  577.745495][ T8061] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  577.753657][ T8061]  </TASK>
[  577.758556][ T8061] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  577.828481][ T8061] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  577.838035][ T8061] CPU: 1 PID: 8061 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  577.848262][ T8061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  577.858600][ T8061] Call Trace:
[  577.863354][ T8061]  <TASK>
[  577.866284][ T8061]  dump_stack_lvl+0x125/0x1b0
[  577.870960][ T8061]  sysfs_warn_dup+0x7f/0xa0
[  577.875464][ T8061]  sysfs_create_dir_ns+0x249/0x2b0
[  577.880580][ T8061]  ? sysfs_create_mount_point+0xb0/0xb0
[  577.886128][ T8061]  ? spin_bug+0x1d0/0x1d0
[  577.890750][ T8061]  ? net_namespace+0x12/0x40
[  577.895464][ T8061]  ? device_namespace+0x8d/0xc0
[  577.900516][ T8061]  kobject_add_internal+0x2c8/0x970
[  577.905749][ T8061]  kobject_add+0x16f/0x240
[  577.910510][ T8061]  ? kset_create_and_add+0x190/0x190
[  577.915978][ T8061]  ? do_raw_spin_unlock+0x173/0x230
[  577.921622][ T8061]  ? kobject_put+0xbe/0x440
[  577.926398][ T8061]  ? device_add+0xc35/0x1aa0
[  577.931436][ T8061]  device_add+0x289/0x1aa0
[  577.935883][ T8061]  ? device_initialize+0x510/0x510
[  577.941624][ T8061]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  577.948848][ T8061]  ? __init_waitqueue_head+0xca/0x150
[  577.954963][ T8061]  netdev_register_kobject+0x183/0x3f0
[  577.960614][ T8061]  register_netdevice+0xbe6/0x14b0
[  577.965840][ T8061]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  577.971918][ T8061]  ? validate_linkmsg+0x6fc/0x9c0
[  577.977049][ T8061]  br_dev_newlink+0x27/0x110
[  577.981850][ T8061]  ? br_changelink+0x1760/0x1760
[  577.986984][ T8061]  __rtnl_newlink+0x1173/0x1930
[  577.992926][ T8061]  ? rtnl_link_unregister+0x260/0x260
[  577.998961][ T8061]  rtnl_newlink+0x67/0xa0
[  578.003582][ T8061]  ? __rtnl_newlink+0x1930/0x1930
[  578.009186][ T8061]  rtnetlink_rcv_msg+0x3c7/0xe00
[  578.014572][ T8061]  ? rtnl_fill_vf+0x4a0/0x4a0
[  578.019285][ T8061]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  578.025476][ T8061]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  578.031915][ T8061]  netlink_rcv_skb+0x16b/0x440
[  578.036969][ T8061]  ? rtnl_fill_vf+0x4a0/0x4a0
[  578.041655][ T8061]  ? netlink_ack+0x1380/0x1380
[  578.046455][ T8061]  ? lock_sync+0x190/0x190
[  578.050895][ T8061]  ? netlink_deliver_tap+0x1a0/0xd00
[  578.056573][ T8061]  ? _copy_from_iter+0x2c1/0x10f0
[  578.061620][ T8061]  netlink_unicast+0x53b/0x810
[  578.066486][ T8061]  ? netlink_attachskb+0x880/0x880
[  578.071727][ T8061]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  578.077807][ T8061]  ? __phys_addr_symbol+0x30/0x70
[  578.082942][ T8061]  ? __check_object_size+0x323/0x730
[  578.088325][ T8061]  netlink_sendmsg+0x93c/0xe40
[  578.093116][ T8061]  ? netlink_unicast+0x810/0x810
[  578.098330][ T8061]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  578.103801][ T8061]  ? netlink_unicast+0x810/0x810
[  578.108895][ T8061]  __sock_sendmsg+0xd5/0x180
[  578.113669][ T8061]  ____sys_sendmsg+0x6ac/0x940
[  578.118729][ T8061]  ? copy_msghdr_from_user+0x10b/0x160
[  578.124457][ T8061]  ? kernel_sendmsg+0x50/0x50
[  578.129227][ T8061]  ? hlock_class+0x4e/0x130
[  578.133911][ T8061]  ? __lock_acquire+0x14e0/0x3b10
[  578.139037][ T8061]  ___sys_sendmsg+0x135/0x1d0
[  578.144263][ T8061]  ? do_recvmmsg+0x740/0x740
[  578.149124][ T8061]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  578.155205][ T8061]  ? find_held_lock+0x2d/0x110
[  578.160124][ T8061]  ? __fget_light+0x1fc/0x260
[  578.164834][ T8061]  __sys_sendmsg+0x117/0x1e0
[  578.169535][ T8061]  ? __sys_sendmsg_sock+0x30/0x30
[  578.174830][ T8061]  ? xfd_validate_state+0x5d/0x180
[  578.180060][ T8061]  ? syscall_enter_from_user_mode+0x7f/0x120
[  578.186637][ T8061]  do_syscall_64+0x40/0x110
[  578.191321][ T8061]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  578.197584][ T8061] RIP: 0033:0x7fb700fd30b9
[  578.202085][ T8061] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  578.222047][ T8061] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  578.231509][ T8061] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  578.239661][ T8061] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  578.247898][ T8061] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  578.256302][ T8061] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  578.264976][ T8061] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  578.273319][ T8061]  </TASK>
[  578.278114][ T8061] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  578.341056][ T8062] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  578.351781][ T8062] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  578.361131][ T8062] CPU: 1 PID: 8062 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  578.372003][ T8062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  578.382441][ T8062] Call Trace:
[  578.385915][ T8062]  <TASK>
[  578.389031][ T8062]  dump_stack_lvl+0x125/0x1b0
[  578.393820][ T8062]  sysfs_warn_dup+0x7f/0xa0
[  578.398680][ T8062]  sysfs_create_dir_ns+0x249/0x2b0
[  578.403805][ T8062]  ? sysfs_create_mount_point+0xb0/0xb0
[  578.409575][ T8062]  ? spin_bug+0x1d0/0x1d0
[  578.413992][ T8062]  ? net_namespace+0x12/0x40
[  578.418715][ T8062]  ? device_namespace+0x8d/0xc0
[  578.424176][ T8062]  kobject_add_internal+0x2c8/0x970
[  578.429486][ T8062]  kobject_add+0x16f/0x240
[  578.434084][ T8062]  ? kset_create_and_add+0x190/0x190
[  578.439502][ T8062]  ? do_raw_spin_unlock+0x173/0x230
[  578.444997][ T8062]  ? kobject_put+0xbe/0x440
[  578.449598][ T8062]  ? device_add+0xc35/0x1aa0
[  578.454282][ T8062]  device_add+0x289/0x1aa0
[  578.458698][ T8062]  ? device_initialize+0x510/0x510
[  578.463806][ T8062]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  578.471562][ T8062]  ? __init_waitqueue_head+0xca/0x150
[  578.477497][ T8062]  netdev_register_kobject+0x183/0x3f0
[  578.483228][ T8062]  register_netdevice+0xbe6/0x14b0
[  578.488545][ T8062]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  578.494449][ T8062]  ? validate_linkmsg+0x6fc/0x9c0
[  578.499492][ T8062]  br_dev_newlink+0x27/0x110
[  578.504170][ T8062]  ? br_changelink+0x1760/0x1760
[  578.509112][ T8062]  __rtnl_newlink+0x1173/0x1930
[  578.513974][ T8062]  ? rtnl_link_unregister+0x260/0x260
[  578.519626][ T8062]  rtnl_newlink+0x67/0xa0
[  578.524060][ T8062]  ? __rtnl_newlink+0x1930/0x1930
[  578.529125][ T8062]  rtnetlink_rcv_msg+0x3c7/0xe00
[  578.534281][ T8062]  ? rtnl_fill_vf+0x4a0/0x4a0
[  578.539087][ T8062]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  578.545173][ T8062]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  578.551277][ T8062]  netlink_rcv_skb+0x16b/0x440
[  578.556250][ T8062]  ? rtnl_fill_vf+0x4a0/0x4a0
[  578.560945][ T8062]  ? netlink_ack+0x1380/0x1380
[  578.565819][ T8062]  ? lock_sync+0x190/0x190
[  578.570544][ T8062]  ? netlink_deliver_tap+0x1a0/0xd00
[  578.575888][ T8062]  ? _copy_from_iter+0x2c1/0x10f0
[  578.581037][ T8062]  netlink_unicast+0x53b/0x810
[  578.586018][ T8062]  ? netlink_attachskb+0x880/0x880
[  578.591504][ T8062]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  578.597950][ T8062]  ? __phys_addr_symbol+0x30/0x70
[  578.603176][ T8062]  ? __check_object_size+0x323/0x730
[  578.608496][ T8062]  netlink_sendmsg+0x93c/0xe40
[  578.613275][ T8062]  ? netlink_unicast+0x810/0x810
[  578.618217][ T8062]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  578.623502][ T8062]  ? netlink_unicast+0x810/0x810
[  578.628442][ T8062]  __sock_sendmsg+0xd5/0x180
[  578.633033][ T8062]  ____sys_sendmsg+0x6ac/0x940
[  578.637794][ T8062]  ? copy_msghdr_from_user+0x10b/0x160
[  578.643275][ T8062]  ? kernel_sendmsg+0x50/0x50
[  578.647974][ T8062]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  578.653987][ T8062]  ___sys_sendmsg+0x135/0x1d0
[  578.658700][ T8062]  ? do_recvmmsg+0x740/0x740
[  578.663460][ T8062]  ? find_held_lock+0x2d/0x110
[  578.668253][ T8062]  ? preempt_count_sub+0x160/0x160
[  578.673377][ T8062]  ? __fget_light+0x1fc/0x260
[  578.678072][ T8062]  __sys_sendmsg+0x117/0x1e0
[  578.683037][ T8062]  ? __sys_sendmsg_sock+0x30/0x30
[  578.688079][ T8062]  ? xfd_validate_state+0x5d/0x180
[  578.693408][ T8062]  ? syscall_enter_from_user_mode+0x7f/0x120
[  578.699510][ T8062]  do_syscall_64+0x40/0x110
[  578.704111][ T8062]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  578.710016][ T8062] RIP: 0033:0x7fb700fd30b9
[  578.714441][ T8062] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  578.734496][ T8062] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  578.743253][ T8062] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  578.751247][ T8062] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  578.759581][ T8062] RBP: 000000000008cef3 R08: 0000000000000000 R09: 0000000000000006
[  578.768006][ T8062] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  578.776020][ T8062] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  578.784171][ T8062]  </TASK>
[  578.790467][ T8062] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  578.856138][ T8062] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  578.866119][ T8062] CPU: 0 PID: 8062 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  578.876209][ T8062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  578.886528][ T8062] Call Trace:
[  578.889801][ T8062]  <TASK>
[  578.892908][ T8062]  dump_stack_lvl+0x125/0x1b0
[  578.897702][ T8062]  sysfs_warn_dup+0x7f/0xa0
[  578.902202][ T8062]  sysfs_create_dir_ns+0x249/0x2b0
[  578.907584][ T8062]  ? sysfs_create_mount_point+0xb0/0xb0
[  578.913508][ T8062]  ? spin_bug+0x1d0/0x1d0
[  578.918635][ T8062]  ? net_namespace+0x12/0x40
[  578.923229][ T8062]  ? device_namespace+0x8d/0xc0
[  578.928255][ T8062]  kobject_add_internal+0x2c8/0x970
[  578.933760][ T8062]  kobject_add+0x16f/0x240
[  578.938366][ T8062]  ? kset_create_and_add+0x190/0x190
[  578.943746][ T8062]  ? do_raw_spin_unlock+0x173/0x230
[  578.949736][ T8062]  ? kobject_put+0xbe/0x440
[  578.954678][ T8062]  ? device_add+0xc35/0x1aa0
[  578.959266][ T8062]  device_add+0x289/0x1aa0
[  578.964123][ T8062]  ? device_initialize+0x510/0x510
[  578.969341][ T8062]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  578.976195][ T8062]  ? __init_waitqueue_head+0xca/0x150
[  578.981566][ T8062]  netdev_register_kobject+0x183/0x3f0
[  578.987041][ T8062]  register_netdevice+0xbe6/0x14b0
[  578.992425][ T8062]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  578.998489][ T8062]  ? validate_linkmsg+0x6fc/0x9c0
[  579.003961][ T8062]  br_dev_newlink+0x27/0x110
[  579.008737][ T8062]  ? br_changelink+0x1760/0x1760
[  579.013753][ T8062]  __rtnl_newlink+0x1173/0x1930
[  579.018617][ T8062]  ? rtnl_link_unregister+0x260/0x260
[  579.024006][ T8062]  rtnl_newlink+0x67/0xa0
[  579.028421][ T8062]  ? __rtnl_newlink+0x1930/0x1930
[  579.033530][ T8062]  rtnetlink_rcv_msg+0x3c7/0xe00
[  579.038554][ T8062]  ? rtnl_fill_vf+0x4a0/0x4a0
[  579.043225][ T8062]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  579.049290][ T8062]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  579.055374][ T8062]  netlink_rcv_skb+0x16b/0x440
[  579.060318][ T8062]  ? rtnl_fill_vf+0x4a0/0x4a0
[  579.064991][ T8062]  ? netlink_ack+0x1380/0x1380
[  579.069886][ T8062]  ? lock_sync+0x190/0x190
[  579.074400][ T8062]  ? netlink_deliver_tap+0x1a0/0xd00
[  579.079850][ T8062]  ? _copy_from_iter+0x2c1/0x10f0
[  579.084961][ T8062]  netlink_unicast+0x53b/0x810
[  579.090072][ T8062]  ? netlink_attachskb+0x880/0x880
[  579.095548][ T8062]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  579.101698][ T8062]  ? __phys_addr_symbol+0x30/0x70
[  579.106722][ T8062]  ? __check_object_size+0x323/0x730
[  579.112011][ T8062]  netlink_sendmsg+0x93c/0xe40
[  579.116908][ T8062]  ? netlink_unicast+0x810/0x810
[  579.122900][ T8062]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  579.128362][ T8062]  ? netlink_unicast+0x810/0x810
[  579.133303][ T8062]  __sock_sendmsg+0xd5/0x180
[  579.137885][ T8062]  ____sys_sendmsg+0x6ac/0x940
[  579.142662][ T8062]  ? copy_msghdr_from_user+0x10b/0x160
[  579.148134][ T8062]  ? kernel_sendmsg+0x50/0x50
[  579.152805][ T8062]  ? hlock_class+0x4e/0x130
[  579.157393][ T8062]  ? __lock_acquire+0x14e0/0x3b10
[  579.162438][ T8062]  ___sys_sendmsg+0x135/0x1d0
[  579.167116][ T8062]  ? do_recvmmsg+0x740/0x740
[  579.171713][ T8062]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  579.177784][ T8062]  ? find_held_lock+0x2d/0x110
[  579.182764][ T8062]  ? __fget_light+0x1fc/0x260
[  579.187575][ T8062]  __sys_sendmsg+0x117/0x1e0
[  579.192191][ T8062]  ? __sys_sendmsg_sock+0x30/0x30
[  579.197501][ T8062]  ? __do_sys_rseq+0x750/0x750
[  579.202670][ T8062]  ? syscall_enter_from_user_mode+0x7f/0x120
[  579.208787][ T8062]  do_syscall_64+0x40/0x110
[  579.213329][ T8062]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  579.219257][ T8062] RIP: 0033:0x7fb700fd30b9
[  579.224560][ T8062] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  579.245358][ T8062] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  579.253980][ T8062] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  579.261943][ T8062] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  579.270181][ T8062] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  579.278148][ T8062] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  579.286865][ T8062] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  579.295027][ T8062]  </TASK>
[  579.299044][ T8062] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  579.360713][ T8063] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  579.373349][ T8063] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  579.382727][ T8063] CPU: 1 PID: 8063 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  579.392988][ T8063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  579.403146][ T8063] Call Trace:
[  579.406505][ T8063]  <TASK>
[  579.409448][ T8063]  dump_stack_lvl+0x125/0x1b0
[  579.414496][ T8063]  sysfs_warn_dup+0x7f/0xa0
[  579.419099][ T8063]  sysfs_create_dir_ns+0x249/0x2b0
[  579.424309][ T8063]  ? sysfs_create_mount_point+0xb0/0xb0
[  579.429948][ T8063]  ? spin_bug+0x1d0/0x1d0
[  579.434383][ T8063]  ? net_namespace+0x12/0x40
[  579.439331][ T8063]  ? device_namespace+0x8d/0xc0
[  579.444350][ T8063]  kobject_add_internal+0x2c8/0x970
[  579.449609][ T8063]  kobject_add+0x16f/0x240
[  579.454149][ T8063]  ? kset_create_and_add+0x190/0x190
[  579.459711][ T8063]  ? do_raw_spin_unlock+0x173/0x230
[  579.465090][ T8063]  ? kobject_put+0xbe/0x440
[  579.469960][ T8063]  ? device_add+0xc35/0x1aa0
[  579.474657][ T8063]  device_add+0x289/0x1aa0
[  579.479436][ T8063]  ? device_initialize+0x510/0x510
[  579.484639][ T8063]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  579.492068][ T8063]  ? __init_waitqueue_head+0xca/0x150
[  579.497671][ T8063]  netdev_register_kobject+0x183/0x3f0
[  579.503316][ T8063]  register_netdevice+0xbe6/0x14b0
[  579.509236][ T8063]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  579.515135][ T8063]  ? validate_linkmsg+0x6fc/0x9c0
[  579.520405][ T8063]  br_dev_newlink+0x27/0x110
[  579.525101][ T8063]  ? br_changelink+0x1760/0x1760
[  579.530346][ T8063]  __rtnl_newlink+0x1173/0x1930
[  579.535658][ T8063]  ? rtnl_link_unregister+0x260/0x260
[  579.541642][ T8063]  rtnl_newlink+0x67/0xa0
[  579.546006][ T8063]  ? __rtnl_newlink+0x1930/0x1930
[  579.551238][ T8063]  rtnetlink_rcv_msg+0x3c7/0xe00
[  579.557330][ T8063]  ? rtnl_fill_vf+0x4a0/0x4a0
[  579.562005][ T8063]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  579.568261][ T8063]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  579.574345][ T8063]  netlink_rcv_skb+0x16b/0x440
[  579.579201][ T8063]  ? rtnl_fill_vf+0x4a0/0x4a0
[  579.584054][ T8063]  ? netlink_ack+0x1380/0x1380
[  579.588837][ T8063]  ? lock_sync+0x190/0x190
[  579.593349][ T8063]  ? netlink_deliver_tap+0x1a0/0xd00
[  579.598637][ T8063]  ? _copy_from_iter+0x2c1/0x10f0
[  579.603755][ T8063]  netlink_unicast+0x53b/0x810
[  579.608703][ T8063]  ? netlink_attachskb+0x880/0x880
[  579.614073][ T8063]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  579.620072][ T8063]  ? __phys_addr_symbol+0x30/0x70
[  579.625450][ T8063]  ? __check_object_size+0x323/0x730
[  579.631031][ T8063]  netlink_sendmsg+0x93c/0xe40
[  579.636093][ T8063]  ? netlink_unicast+0x810/0x810
[  579.641140][ T8063]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  579.646631][ T8063]  ? netlink_unicast+0x810/0x810
[  579.651785][ T8063]  __sock_sendmsg+0xd5/0x180
[  579.656583][ T8063]  ____sys_sendmsg+0x6ac/0x940
[  579.661476][ T8063]  ? copy_msghdr_from_user+0x10b/0x160
[  579.667553][ T8063]  ? kernel_sendmsg+0x50/0x50
[  579.672500][ T8063]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  579.678486][ T8063]  ___sys_sendmsg+0x135/0x1d0
[  579.683455][ T8063]  ? do_recvmmsg+0x740/0x740
[  579.688255][ T8063]  ? find_held_lock+0x2d/0x110
[  579.693460][ T8063]  ? preempt_count_sub+0x160/0x160
[  579.698598][ T8063]  ? __fget_light+0x1fc/0x260
[  579.703357][ T8063]  __sys_sendmsg+0x117/0x1e0
[  579.708328][ T8063]  ? __sys_sendmsg_sock+0x30/0x30
[  579.713407][ T8063]  ? xfd_validate_state+0x5d/0x180
[  579.718628][ T8063]  ? syscall_enter_from_user_mode+0x7f/0x120
[  579.724629][ T8063]  do_syscall_64+0x40/0x110
[  579.729232][ T8063]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  579.735486][ T8063] RIP: 0033:0x7fb700fd30b9
[  579.739897][ T8063] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  579.759813][ T8063] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  579.769205][ T8063] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  579.777783][ T8063] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  579.786036][ T8063] RBP: 000000000008d2f8 R08: 0000000000000000 R09: 0000000000000006
[  579.794363][ T8063] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  579.802712][ T8063] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  579.812416][ T8063]  </TASK>
[  579.819845][ T8063] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  579.885875][ T8063] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  579.895379][ T8063] CPU: 1 PID: 8063 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  579.905649][ T8063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  579.917063][ T8063] Call Trace:
[  579.921435][ T8063]  <TASK>
[  579.925273][ T8063]  dump_stack_lvl+0x125/0x1b0
[  579.930583][ T8063]  sysfs_warn_dup+0x7f/0xa0
[  579.935558][ T8063]  sysfs_create_dir_ns+0x249/0x2b0
[  579.941227][ T8063]  ? sysfs_create_mount_point+0xb0/0xb0
[  579.947296][ T8063]  ? spin_bug+0x1d0/0x1d0
[  579.952258][ T8063]  ? net_namespace+0x12/0x40
[  579.957007][ T8063]  ? device_namespace+0x8d/0xc0
[  579.961893][ T8063]  kobject_add_internal+0x2c8/0x970
[  579.969127][ T8063]  kobject_add+0x16f/0x240
[  579.974166][ T8063]  ? kset_create_and_add+0x190/0x190
[  579.979813][ T8063]  ? do_raw_spin_unlock+0x173/0x230
[  579.985291][ T8063]  ? kobject_put+0xbe/0x440
[  579.989831][ T8063]  ? device_add+0xc35/0x1aa0
[  579.994429][ T8063]  device_add+0x289/0x1aa0
[  579.998848][ T8063]  ? device_initialize+0x510/0x510
[  580.003961][ T8063]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  580.011139][ T8063]  ? __init_waitqueue_head+0xca/0x150
[  580.016620][ T8063]  netdev_register_kobject+0x183/0x3f0
[  580.022145][ T8063]  register_netdevice+0xbe6/0x14b0
[  580.027801][ T8063]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  580.033911][ T8063]  ? validate_linkmsg+0x6fc/0x9c0
[  580.039015][ T8063]  br_dev_newlink+0x27/0x110
[  580.043802][ T8063]  ? br_changelink+0x1760/0x1760
[  580.049512][ T8063]  __rtnl_newlink+0x1173/0x1930
[  580.054537][ T8063]  ? rtnl_link_unregister+0x260/0x260
[  580.060217][ T8063]  rtnl_newlink+0x67/0xa0
[  580.064739][ T8063]  ? __rtnl_newlink+0x1930/0x1930
[  580.070199][ T8063]  rtnetlink_rcv_msg+0x3c7/0xe00
[  580.075168][ T8063]  ? rtnl_fill_vf+0x4a0/0x4a0
[  580.079948][ T8063]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  580.086304][ T8063]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  580.092666][ T8063]  netlink_rcv_skb+0x16b/0x440
[  580.097480][ T8063]  ? rtnl_fill_vf+0x4a0/0x4a0
[  580.102347][ T8063]  ? netlink_ack+0x1380/0x1380
[  580.107317][ T8063]  ? lock_sync+0x190/0x190
[  580.111868][ T8063]  ? netlink_deliver_tap+0x1a0/0xd00
[  580.117354][ T8063]  ? _copy_from_iter+0x2c1/0x10f0
[  580.123026][ T8063]  netlink_unicast+0x53b/0x810
[  580.127810][ T8063]  ? netlink_attachskb+0x880/0x880
[  580.132931][ T8063]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  580.139118][ T8063]  ? __phys_addr_symbol+0x30/0x70
[  580.144763][ T8063]  ? __check_object_size+0x323/0x730
[  580.150146][ T8063]  netlink_sendmsg+0x93c/0xe40
[  580.155042][ T8063]  ? netlink_unicast+0x810/0x810
[  580.160266][ T8063]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  580.165677][ T8063]  ? netlink_unicast+0x810/0x810
[  580.170747][ T8063]  __sock_sendmsg+0xd5/0x180
[  580.175435][ T8063]  ____sys_sendmsg+0x6ac/0x940
[  580.180379][ T8063]  ? copy_msghdr_from_user+0x10b/0x160
[  580.186118][ T8063]  ? kernel_sendmsg+0x50/0x50
[  580.190815][ T8063]  ___sys_sendmsg+0x135/0x1d0
[  580.196215][ T8063]  ? do_recvmmsg+0x740/0x740
[  580.201768][ T8063]  ? find_held_lock+0x2d/0x110
[  580.207248][ T8063]  ? preempt_count_sub+0x160/0x160
[  580.212474][ T8063]  ? __fget_light+0x1fc/0x260
[  580.217329][ T8063]  __sys_sendmsg+0x117/0x1e0
[  580.222201][ T8063]  ? __sys_sendmsg_sock+0x30/0x30
[  580.227701][ T8063]  ? syscall_enter_from_user_mode+0x7f/0x120
[  580.233981][ T8063]  do_syscall_64+0x40/0x110
[  580.238604][ T8063]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  580.244694][ T8063] RIP: 0033:0x7fb700fd30b9
[  580.249291][ T8063] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  580.269422][ T8063] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  580.277921][ T8063] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  580.286255][ T8063] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  580.294450][ T8063] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  580.303126][ T8063] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  580.311450][ T8063] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  580.319977][ T8063]  </TASK>
[  580.324928][ T8063] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  580.380959][ T8064] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  580.391377][ T8064] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  580.400736][ T8064] CPU: 1 PID: 8064 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  580.410974][ T8064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  580.421209][ T8064] Call Trace:
[  580.424490][ T8064]  <TASK>
[  580.427709][ T8064]  dump_stack_lvl+0x125/0x1b0
[  580.432539][ T8064]  sysfs_warn_dup+0x7f/0xa0
[  580.437167][ T8064]  sysfs_create_dir_ns+0x249/0x2b0
[  580.442670][ T8064]  ? sysfs_create_mount_point+0xb0/0xb0
[  580.448249][ T8064]  ? spin_bug+0x1d0/0x1d0
[  580.452685][ T8064]  ? net_namespace+0x12/0x40
[  580.457391][ T8064]  ? device_namespace+0x8d/0xc0
[  580.462438][ T8064]  kobject_add_internal+0x2c8/0x970
[  580.467780][ T8064]  kobject_add+0x16f/0x240
[  580.472668][ T8064]  ? kset_create_and_add+0x190/0x190
[  580.478172][ T8064]  ? do_raw_spin_unlock+0x173/0x230
[  580.483492][ T8064]  ? kobject_put+0xbe/0x440
[  580.488293][ T8064]  ? device_add+0xc35/0x1aa0
[  580.493214][ T8064]  device_add+0x289/0x1aa0
[  580.499396][ T8064]  ? device_initialize+0x510/0x510
[  580.504692][ T8064]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  580.512184][ T8064]  ? __init_waitqueue_head+0xca/0x150
[  580.517755][ T8064]  netdev_register_kobject+0x183/0x3f0
[  580.523319][ T8064]  register_netdevice+0xbe6/0x14b0
[  580.528445][ T8064]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  580.534612][ T8064]  ? validate_linkmsg+0x6fc/0x9c0
[  580.540260][ T8064]  br_dev_newlink+0x27/0x110
[  580.544897][ T8064]  ? br_changelink+0x1760/0x1760
[  580.549942][ T8064]  __rtnl_newlink+0x1173/0x1930
[  580.554836][ T8064]  ? rtnl_link_unregister+0x260/0x260
[  580.560352][ T8064]  rtnl_newlink+0x67/0xa0
[  580.564694][ T8064]  ? __rtnl_newlink+0x1930/0x1930
[  580.569730][ T8064]  rtnetlink_rcv_msg+0x3c7/0xe00
[  580.574848][ T8064]  ? rtnl_fill_vf+0x4a0/0x4a0
[  580.579706][ T8064]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  580.585870][ T8064]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  580.591868][ T8064]  netlink_rcv_skb+0x16b/0x440
[  580.596641][ T8064]  ? rtnl_fill_vf+0x4a0/0x4a0
[  580.601328][ T8064]  ? netlink_ack+0x1380/0x1380
[  580.606105][ T8064]  ? lock_sync+0x190/0x190
[  580.610583][ T8064]  ? netlink_deliver_tap+0x1a0/0xd00
[  580.615961][ T8064]  ? _copy_from_iter+0x2c1/0x10f0
[  580.621435][ T8064]  netlink_unicast+0x53b/0x810
[  580.626302][ T8064]  ? netlink_attachskb+0x880/0x880
[  580.631423][ T8064]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  580.637595][ T8064]  ? __phys_addr_symbol+0x30/0x70
[  580.642926][ T8064]  ? __check_object_size+0x323/0x730
[  580.648506][ T8064]  netlink_sendmsg+0x93c/0xe40
[  580.653375][ T8064]  ? netlink_unicast+0x810/0x810
[  580.658327][ T8064]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  580.663618][ T8064]  ? netlink_unicast+0x810/0x810
[  580.668763][ T8064]  __sock_sendmsg+0xd5/0x180
[  580.673561][ T8064]  ____sys_sendmsg+0x6ac/0x940
[  580.678338][ T8064]  ? copy_msghdr_from_user+0x10b/0x160
[  580.683816][ T8064]  ? kernel_sendmsg+0x50/0x50
[  580.689201][ T8064]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  580.695289][ T8064]  ___sys_sendmsg+0x135/0x1d0
[  580.700000][ T8064]  ? do_recvmmsg+0x740/0x740
[  580.704774][ T8064]  ? find_held_lock+0x2d/0x110
[  580.709561][ T8064]  ? preempt_count_sub+0x160/0x160
[  580.714685][ T8064]  ? __fget_light+0x1fc/0x260
[  580.719546][ T8064]  __sys_sendmsg+0x117/0x1e0
[  580.724408][ T8064]  ? __sys_sendmsg_sock+0x30/0x30
[  580.729562][ T8064]  ? syscall_enter_from_user_mode+0x7f/0x120
[  580.735733][ T8064]  do_syscall_64+0x40/0x110
[  580.740251][ T8064]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  580.746503][ T8064] RIP: 0033:0x7fb700fd30b9
[  580.751091][ T8064] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  580.771238][ T8064] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  580.779830][ T8064] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  580.787800][ T8064] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  580.796836][ T8064] RBP: 000000000008d6f3 R08: 0000000000000000 R09: 0000000000000006
[  580.804835][ T8064] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  580.813260][ T8064] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  580.821435][ T8064]  </TASK>
[  580.825151][ T8064] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  580.866477][ T8064] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  580.875904][ T8064] CPU: 1 PID: 8064 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  580.885991][ T8064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  580.896388][ T8064] Call Trace:
[  580.899771][ T8064]  <TASK>
[  580.902702][ T8064]  dump_stack_lvl+0x125/0x1b0
[  580.907846][ T8064]  sysfs_warn_dup+0x7f/0xa0
[  580.912344][ T8064]  sysfs_create_dir_ns+0x249/0x2b0
[  580.917824][ T8064]  ? sysfs_create_mount_point+0xb0/0xb0
[  580.924066][ T8064]  ? spin_bug+0x1d0/0x1d0
[  580.928867][ T8064]  ? net_namespace+0x12/0x40
[  580.933557][ T8064]  ? device_namespace+0x8d/0xc0
[  580.939144][ T8064]  kobject_add_internal+0x2c8/0x970
[  580.945192][ T8064]  kobject_add+0x16f/0x240
[  580.949891][ T8064]  ? kset_create_and_add+0x190/0x190
[  580.955726][ T8064]  ? do_raw_spin_unlock+0x173/0x230
[  580.961097][ T8064]  ? kobject_put+0xbe/0x440
[  580.965690][ T8064]  ? device_add+0xc35/0x1aa0
[  580.970543][ T8064]  device_add+0x289/0x1aa0
[  580.974972][ T8064]  ? device_initialize+0x510/0x510
[  580.981041][ T8064]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  580.988067][ T8064]  ? __init_waitqueue_head+0xca/0x150
[  580.993555][ T8064]  netdev_register_kobject+0x183/0x3f0
[  580.999041][ T8064]  register_netdevice+0xbe6/0x14b0
[  581.004258][ T8064]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  581.010249][ T8064]  ? validate_linkmsg+0x6fc/0x9c0
[  581.015375][ T8064]  br_dev_newlink+0x27/0x110
[  581.019990][ T8064]  ? br_changelink+0x1760/0x1760
[  581.024939][ T8064]  __rtnl_newlink+0x1173/0x1930
[  581.029947][ T8064]  ? rtnl_link_unregister+0x260/0x260
[  581.035370][ T8064]  rtnl_newlink+0x67/0xa0
[  581.039800][ T8064]  ? __rtnl_newlink+0x1930/0x1930
[  581.044835][ T8064]  rtnetlink_rcv_msg+0x3c7/0xe00
[  581.049842][ T8064]  ? rtnl_fill_vf+0x4a0/0x4a0
[  581.054618][ T8064]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  581.060614][ T8064]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  581.066709][ T8064]  netlink_rcv_skb+0x16b/0x440
[  581.071581][ T8064]  ? rtnl_fill_vf+0x4a0/0x4a0
[  581.077066][ T8064]  ? netlink_ack+0x1380/0x1380
[  581.081926][ T8064]  ? lock_sync+0x190/0x190
[  581.086374][ T8064]  ? netlink_deliver_tap+0x1a0/0xd00
[  581.091769][ T8064]  ? _copy_from_iter+0x2c1/0x10f0
[  581.096899][ T8064]  netlink_unicast+0x53b/0x810
[  581.101803][ T8064]  ? netlink_attachskb+0x880/0x880
[  581.106931][ T8064]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  581.113193][ T8064]  ? __phys_addr_symbol+0x30/0x70
[  581.118317][ T8064]  ? __check_object_size+0x323/0x730
[  581.124058][ T8064]  netlink_sendmsg+0x93c/0xe40
[  581.128956][ T8064]  ? netlink_unicast+0x810/0x810
[  581.133973][ T8064]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  581.139527][ T8064]  ? netlink_unicast+0x810/0x810
[  581.144604][ T8064]  __sock_sendmsg+0xd5/0x180
[  581.149561][ T8064]  ____sys_sendmsg+0x6ac/0x940
[  581.154334][ T8064]  ? copy_msghdr_from_user+0x10b/0x160
[  581.159986][ T8064]  ? kernel_sendmsg+0x50/0x50
[  581.165217][ T8064]  ___sys_sendmsg+0x135/0x1d0
[  581.169909][ T8064]  ? do_recvmmsg+0x740/0x740
[  581.174506][ T8064]  ? find_held_lock+0x2d/0x110
[  581.179295][ T8064]  ? preempt_count_sub+0x160/0x160
[  581.185205][ T8064]  ? __fget_light+0x1fc/0x260
[  581.189896][ T8064]  __sys_sendmsg+0x117/0x1e0
[  581.194670][ T8064]  ? __sys_sendmsg_sock+0x30/0x30
[  581.199800][ T8064]  ? syscall_enter_from_user_mode+0x7f/0x120
[  581.206072][ T8064]  do_syscall_64+0x40/0x110
[  581.210580][ T8064]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  581.216583][ T8064] RIP: 0033:0x7fb700fd30b9
[  581.221175][ T8064] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  581.241065][ T8064] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  581.249656][ T8064] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  581.258000][ T8064] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  581.266195][ T8064] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  581.274349][ T8064] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  581.282333][ T8064] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  581.290599][ T8064]  </TASK>
[  581.294007][ T8064] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  581.361656][ T8065] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  581.372135][ T8065] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  581.381771][ T8065] CPU: 0 PID: 8065 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  581.392364][ T8065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  581.402415][ T8065] Call Trace:
[  581.405692][ T8065]  <TASK>
[  581.408723][ T8065]  dump_stack_lvl+0x125/0x1b0
[  581.413498][ T8065]  sysfs_warn_dup+0x7f/0xa0
[  581.418176][ T8065]  sysfs_create_dir_ns+0x249/0x2b0
[  581.423513][ T8065]  ? sysfs_create_mount_point+0xb0/0xb0
[  581.429435][ T8065]  ? spin_bug+0x1d0/0x1d0
[  581.433785][ T8065]  ? net_namespace+0x12/0x40
[  581.438417][ T8065]  ? device_namespace+0x8d/0xc0
[  581.443356][ T8065]  kobject_add_internal+0x2c8/0x970
[  581.448564][ T8065]  kobject_add+0x16f/0x240
[  581.453277][ T8065]  ? kset_create_and_add+0x190/0x190
[  581.458904][ T8065]  ? do_raw_spin_unlock+0x173/0x230
[  581.464660][ T8065]  ? kobject_put+0xbe/0x440
[  581.469340][ T8065]  ? device_add+0xc35/0x1aa0
[  581.474380][ T8065]  device_add+0x289/0x1aa0
[  581.478831][ T8065]  ? device_initialize+0x510/0x510
[  581.483966][ T8065]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  581.490995][ T8065]  ? __init_waitqueue_head+0xca/0x150
[  581.496603][ T8065]  netdev_register_kobject+0x183/0x3f0
[  581.502133][ T8065]  register_netdevice+0xbe6/0x14b0
[  581.507874][ T8065]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  581.514137][ T8065]  ? validate_linkmsg+0x6fc/0x9c0
[  581.519248][ T8065]  br_dev_newlink+0x27/0x110
[  581.524012][ T8065]  ? br_changelink+0x1760/0x1760
[  581.529050][ T8065]  __rtnl_newlink+0x1173/0x1930
[  581.533929][ T8065]  ? rtnl_link_unregister+0x260/0x260
[  581.539446][ T8065]  rtnl_newlink+0x67/0xa0
[  581.543964][ T8065]  ? __rtnl_newlink+0x1930/0x1930
[  581.549109][ T8065]  rtnetlink_rcv_msg+0x3c7/0xe00
[  581.554104][ T8065]  ? rtnl_fill_vf+0x4a0/0x4a0
[  581.558777][ T8065]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  581.564758][ T8065]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  581.570933][ T8065]  netlink_rcv_skb+0x16b/0x440
[  581.575714][ T8065]  ? rtnl_fill_vf+0x4a0/0x4a0
[  581.580491][ T8065]  ? netlink_ack+0x1380/0x1380
[  581.585361][ T8065]  ? lock_sync+0x190/0x190
[  581.589793][ T8065]  ? netlink_deliver_tap+0x1a0/0xd00
[  581.595163][ T8065]  ? _copy_from_iter+0x2c1/0x10f0
[  581.600188][ T8065]  netlink_unicast+0x53b/0x810
[  581.605046][ T8065]  ? netlink_attachskb+0x880/0x880
[  581.610269][ T8065]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  581.616165][ T8065]  ? __phys_addr_symbol+0x30/0x70
[  581.621184][ T8065]  ? __check_object_size+0x323/0x730
[  581.626582][ T8065]  netlink_sendmsg+0x93c/0xe40
[  581.631439][ T8065]  ? netlink_unicast+0x810/0x810
[  581.636385][ T8065]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  581.641752][ T8065]  ? netlink_unicast+0x810/0x810
[  581.646689][ T8065]  __sock_sendmsg+0xd5/0x180
[  581.651275][ T8065]  ____sys_sendmsg+0x6ac/0x940
[  581.656119][ T8065]  ? copy_msghdr_from_user+0x10b/0x160
[  581.661657][ T8065]  ? kernel_sendmsg+0x50/0x50
[  581.666337][ T8065]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  581.672496][ T8065]  ___sys_sendmsg+0x135/0x1d0
[  581.677270][ T8065]  ? do_recvmmsg+0x740/0x740
[  581.682066][ T8065]  ? find_held_lock+0x2d/0x110
[  581.687107][ T8065]  ? preempt_count_sub+0x160/0x160
[  581.692304][ T8065]  ? __fget_light+0x1fc/0x260
[  581.697144][ T8065]  __sys_sendmsg+0x117/0x1e0
[  581.701773][ T8065]  ? __sys_sendmsg_sock+0x30/0x30
[  581.706803][ T8065]  ? xfd_validate_state+0x5d/0x180
[  581.712044][ T8065]  ? syscall_enter_from_user_mode+0x7f/0x120
[  581.718090][ T8065]  do_syscall_64+0x40/0x110
[  581.722691][ T8065]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  581.728713][ T8065] RIP: 0033:0x7fb700fd30b9
[  581.733206][ T8065] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  581.754284][ T8065] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  581.763298][ T8065] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  581.771479][ T8065] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  581.779636][ T8065] RBP: 000000000008daf0 R08: 0000000000000000 R09: 0000000000000006
[  581.787892][ T8065] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  581.796265][ T8065] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  581.804687][ T8065]  </TASK>
[  581.809546][ T8065] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  581.866136][ T8065] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  581.875702][ T8065] CPU: 0 PID: 8065 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  581.885875][ T8065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  581.896226][ T8065] Call Trace:
[  581.899852][ T8065]  <TASK>
[  581.902813][ T8065]  dump_stack_lvl+0x125/0x1b0
[  581.907602][ T8065]  sysfs_warn_dup+0x7f/0xa0
[  581.912377][ T8065]  sysfs_create_dir_ns+0x249/0x2b0
[  581.917527][ T8065]  ? sysfs_create_mount_point+0xb0/0xb0
[  581.923544][ T8065]  ? spin_bug+0x1d0/0x1d0
[  581.928149][ T8065]  ? net_namespace+0x12/0x40
[  581.932922][ T8065]  ? device_namespace+0x8d/0xc0
[  581.938070][ T8065]  kobject_add_internal+0x2c8/0x970
[  581.943401][ T8065]  kobject_add+0x16f/0x240
[  581.947925][ T8065]  ? kset_create_and_add+0x190/0x190
[  581.953319][ T8065]  ? do_raw_spin_unlock+0x173/0x230
[  581.958610][ T8065]  ? kobject_put+0xbe/0x440
[  581.963217][ T8065]  ? device_add+0xc35/0x1aa0
[  581.967904][ T8065]  device_add+0x289/0x1aa0
[  581.972440][ T8065]  ? device_initialize+0x510/0x510
[  581.977774][ T8065]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  581.984840][ T8065]  ? __init_waitqueue_head+0xca/0x150
[  581.990321][ T8065]  netdev_register_kobject+0x183/0x3f0
[  581.996063][ T8065]  register_netdevice+0xbe6/0x14b0
[  582.001284][ T8065]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  582.007198][ T8065]  ? validate_linkmsg+0x6fc/0x9c0
[  582.012363][ T8065]  br_dev_newlink+0x27/0x110
[  582.017585][ T8065]  ? br_changelink+0x1760/0x1760
[  582.022629][ T8065]  __rtnl_newlink+0x1173/0x1930
[  582.027508][ T8065]  ? rtnl_link_unregister+0x260/0x260
[  582.032969][ T8065]  rtnl_newlink+0x67/0xa0
[  582.037328][ T8065]  ? __rtnl_newlink+0x1930/0x1930
[  582.042564][ T8065]  rtnetlink_rcv_msg+0x3c7/0xe00
[  582.047643][ T8065]  ? rtnl_fill_vf+0x4a0/0x4a0
[  582.052328][ T8065]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  582.058420][ T8065]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  582.064422][ T8065]  netlink_rcv_skb+0x16b/0x440
[  582.069201][ T8065]  ? rtnl_fill_vf+0x4a0/0x4a0
[  582.074001][ T8065]  ? netlink_ack+0x1380/0x1380
[  582.078983][ T8065]  ? lock_sync+0x190/0x190
[  582.083595][ T8065]  ? netlink_deliver_tap+0x1a0/0xd00
[  582.089148][ T8065]  ? _copy_from_iter+0x2c1/0x10f0
[  582.094190][ T8065]  netlink_unicast+0x53b/0x810
[  582.098970][ T8065]  ? netlink_attachskb+0x880/0x880
[  582.104293][ T8065]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  582.110828][ T8065]  ? __phys_addr_symbol+0x30/0x70
[  582.115881][ T8065]  ? __check_object_size+0x323/0x730
[  582.121269][ T8065]  netlink_sendmsg+0x93c/0xe40
[  582.126051][ T8065]  ? netlink_unicast+0x810/0x810
[  582.131104][ T8065]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  582.136408][ T8065]  ? netlink_unicast+0x810/0x810
[  582.141530][ T8065]  __sock_sendmsg+0xd5/0x180
[  582.146591][ T8065]  ____sys_sendmsg+0x6ac/0x940
[  582.151449][ T8065]  ? copy_msghdr_from_user+0x10b/0x160
[  582.157036][ T8065]  ? kernel_sendmsg+0x50/0x50
[  582.161858][ T8065]  ? hlock_class+0x4e/0x130
[  582.166650][ T8065]  ? __lock_acquire+0x14e0/0x3b10
[  582.171802][ T8065]  ___sys_sendmsg+0x135/0x1d0
[  582.176875][ T8065]  ? do_recvmmsg+0x740/0x740
[  582.181665][ T8065]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  582.187662][ T8065]  ? find_held_lock+0x2d/0x110
[  582.192462][ T8065]  ? __fget_light+0x1fc/0x260
[  582.198362][ T8065]  __sys_sendmsg+0x117/0x1e0
[  582.202974][ T8065]  ? __sys_sendmsg_sock+0x30/0x30
[  582.208011][ T8065]  ? __do_sys_rseq+0x750/0x750
[  582.213246][ T8065]  ? syscall_enter_from_user_mode+0x7f/0x120
[  582.219540][ T8065]  do_syscall_64+0x40/0x110
[  582.224607][ T8065]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  582.230696][ T8065] RIP: 0033:0x7fb700fd30b9
[  582.235493][ T8065] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  582.256822][ T8065] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  582.265484][ T8065] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  582.273585][ T8065] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  582.281740][ T8065] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  582.289888][ T8065] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  582.298644][ T8065] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  582.307332][ T8065]  </TASK>
[  582.311226][ T8065] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  582.370497][ T8066] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  582.381036][ T8066] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  582.390510][ T8066] CPU: 0 PID: 8066 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  582.400861][ T8066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  582.411286][ T8066] Call Trace:
[  582.414574][ T8066]  <TASK>
[  582.417497][ T8066]  dump_stack_lvl+0x125/0x1b0
[  582.422566][ T8066]  sysfs_warn_dup+0x7f/0xa0
[  582.427543][ T8066]  sysfs_create_dir_ns+0x249/0x2b0
[  582.432983][ T8066]  ? sysfs_create_mount_point+0xb0/0xb0
[  582.438946][ T8066]  ? spin_bug+0x1d0/0x1d0
[  582.443478][ T8066]  ? net_namespace+0x12/0x40
[  582.448474][ T8066]  ? device_namespace+0x8d/0xc0
[  582.453356][ T8066]  kobject_add_internal+0x2c8/0x970
[  582.458836][ T8066]  kobject_add+0x16f/0x240
[  582.463525][ T8066]  ? kset_create_and_add+0x190/0x190
[  582.469173][ T8066]  ? do_raw_spin_unlock+0x173/0x230
[  582.474432][ T8066]  ? kobject_put+0xbe/0x440
[  582.479290][ T8066]  ? device_add+0xc35/0x1aa0
[  582.484187][ T8066]  device_add+0x289/0x1aa0
[  582.488728][ T8066]  ? device_initialize+0x510/0x510
[  582.493864][ T8066]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  582.500920][ T8066]  ? __init_waitqueue_head+0xca/0x150
[  582.506597][ T8066]  netdev_register_kobject+0x183/0x3f0
[  582.512197][ T8066]  register_netdevice+0xbe6/0x14b0
[  582.517332][ T8066]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  582.523347][ T8066]  ? validate_linkmsg+0x6fc/0x9c0
[  582.528841][ T8066]  br_dev_newlink+0x27/0x110
[  582.533728][ T8066]  ? br_changelink+0x1760/0x1760
[  582.538759][ T8066]  __rtnl_newlink+0x1173/0x1930
[  582.543631][ T8066]  ? rtnl_link_unregister+0x260/0x260
[  582.549559][ T8066]  rtnl_newlink+0x67/0xa0
[  582.554107][ T8066]  ? __rtnl_newlink+0x1930/0x1930
[  582.559223][ T8066]  rtnetlink_rcv_msg+0x3c7/0xe00
[  582.564255][ T8066]  ? rtnl_fill_vf+0x4a0/0x4a0
[  582.569023][ T8066]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  582.575196][ T8066]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  582.581304][ T8066]  netlink_rcv_skb+0x16b/0x440
[  582.586362][ T8066]  ? rtnl_fill_vf+0x4a0/0x4a0
[  582.591073][ T8066]  ? netlink_ack+0x1380/0x1380
[  582.596286][ T8066]  ? lock_sync+0x190/0x190
[  582.600741][ T8066]  ? netlink_deliver_tap+0x1a0/0xd00
[  582.606098][ T8066]  ? _copy_from_iter+0x2c1/0x10f0
[  582.611150][ T8066]  netlink_unicast+0x53b/0x810
[  582.615940][ T8066]  ? netlink_attachskb+0x880/0x880
[  582.621444][ T8066]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  582.627349][ T8066]  ? __phys_addr_symbol+0x30/0x70
[  582.632667][ T8066]  ? __check_object_size+0x323/0x730
[  582.637963][ T8066]  netlink_sendmsg+0x93c/0xe40
[  582.642745][ T8066]  ? netlink_unicast+0x810/0x810
[  582.647793][ T8066]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  582.653172][ T8066]  ? netlink_unicast+0x810/0x810
[  582.658138][ T8066]  __sock_sendmsg+0xd5/0x180
[  582.662914][ T8066]  ____sys_sendmsg+0x6ac/0x940
[  582.667778][ T8066]  ? copy_msghdr_from_user+0x10b/0x160
[  582.673266][ T8066]  ? kernel_sendmsg+0x50/0x50
[  582.678255][ T8066]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  582.684542][ T8066]  ___sys_sendmsg+0x135/0x1d0
[  582.689337][ T8066]  ? do_recvmmsg+0x740/0x740
[  582.694030][ T8066]  ? find_held_lock+0x2d/0x110
[  582.699075][ T8066]  ? preempt_count_sub+0x160/0x160
[  582.704478][ T8066]  ? __fget_light+0x1fc/0x260
[  582.709267][ T8066]  __sys_sendmsg+0x117/0x1e0
[  582.713982][ T8066]  ? __sys_sendmsg_sock+0x30/0x30
[  582.719039][ T8066]  ? xfd_validate_state+0x5d/0x180
[  582.724203][ T8066]  ? syscall_enter_from_user_mode+0x7f/0x120
[  582.730463][ T8066]  do_syscall_64+0x40/0x110
[  582.735061][ T8066]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  582.741064][ T8066] RIP: 0033:0x7fb700fd30b9
[  582.745769][ T8066] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  582.766517][ T8066] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  582.775879][ T8066] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  582.785079][ T8066] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  582.794271][ T8066] RBP: 000000000008dec4 R08: 0000000000000000 R09: 0000000000000006
[  582.802945][ T8066] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  582.811108][ T8066] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  582.819468][ T8066]  </TASK>
[  582.824316][ T8066] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  582.885888][ T8066] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  582.895633][ T8066] CPU: 1 PID: 8066 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  582.905807][ T8066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  582.916476][ T8066] Call Trace:
[  582.919993][ T8066]  <TASK>
[  582.923387][ T8066]  dump_stack_lvl+0x125/0x1b0
[  582.929379][ T8066]  sysfs_warn_dup+0x7f/0xa0
[  582.934167][ T8066]  sysfs_create_dir_ns+0x249/0x2b0
[  582.940368][ T8066]  ? sysfs_create_mount_point+0xb0/0xb0
[  582.946042][ T8066]  ? spin_bug+0x1d0/0x1d0
[  582.950539][ T8066]  ? net_namespace+0x12/0x40
[  582.955224][ T8066]  ? device_namespace+0x8d/0xc0
[  582.960538][ T8066]  kobject_add_internal+0x2c8/0x970
[  582.966104][ T8066]  kobject_add+0x16f/0x240
[  582.970756][ T8066]  ? kset_create_and_add+0x190/0x190
[  582.977662][ T8066]  ? do_raw_spin_unlock+0x173/0x230
[  582.983232][ T8066]  ? kobject_put+0xbe/0x440
[  582.987958][ T8066]  ? device_add+0xc35/0x1aa0
[  582.992754][ T8066]  device_add+0x289/0x1aa0
[  582.997650][ T8066]  ? device_initialize+0x510/0x510
[  583.003208][ T8066]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  583.010259][ T8066]  ? __init_waitqueue_head+0xca/0x150
[  583.015872][ T8066]  netdev_register_kobject+0x183/0x3f0
[  583.021558][ T8066]  register_netdevice+0xbe6/0x14b0
[  583.026957][ T8066]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  583.033393][ T8066]  ? validate_linkmsg+0x6fc/0x9c0
[  583.038690][ T8066]  br_dev_newlink+0x27/0x110
[  583.043292][ T8066]  ? br_changelink+0x1760/0x1760
[  583.048338][ T8066]  __rtnl_newlink+0x1173/0x1930
[  583.053474][ T8066]  ? rtnl_link_unregister+0x260/0x260
[  583.058970][ T8066]  rtnl_newlink+0x67/0xa0
[  583.063406][ T8066]  ? __rtnl_newlink+0x1930/0x1930
[  583.068537][ T8066]  rtnetlink_rcv_msg+0x3c7/0xe00
[  583.073486][ T8066]  ? rtnl_fill_vf+0x4a0/0x4a0
[  583.078432][ T8066]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  583.084949][ T8066]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  583.091126][ T8066]  netlink_rcv_skb+0x16b/0x440
[  583.096076][ T8066]  ? rtnl_fill_vf+0x4a0/0x4a0
[  583.100962][ T8066]  ? netlink_ack+0x1380/0x1380
[  583.106035][ T8066]  ? lock_sync+0x190/0x190
[  583.110577][ T8066]  ? netlink_deliver_tap+0x1a0/0xd00
[  583.115874][ T8066]  ? _copy_from_iter+0x2c1/0x10f0
[  583.120919][ T8066]  netlink_unicast+0x53b/0x810
[  583.125805][ T8066]  ? netlink_attachskb+0x880/0x880
[  583.131126][ T8066]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  583.137320][ T8066]  ? __phys_addr_symbol+0x30/0x70
[  583.142361][ T8066]  ? __check_object_size+0x323/0x730
[  583.147756][ T8066]  netlink_sendmsg+0x93c/0xe40
[  583.152643][ T8066]  ? netlink_unicast+0x810/0x810
[  583.157691][ T8066]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  583.163181][ T8066]  ? netlink_unicast+0x810/0x810
[  583.168306][ T8066]  __sock_sendmsg+0xd5/0x180
[  583.173185][ T8066]  ____sys_sendmsg+0x6ac/0x940
[  583.178130][ T8066]  ? copy_msghdr_from_user+0x10b/0x160
[  583.184468][ T8066]  ? kernel_sendmsg+0x50/0x50
[  583.189168][ T8066]  ___sys_sendmsg+0x135/0x1d0
[  583.193867][ T8066]  ? do_recvmmsg+0x740/0x740
[  583.198469][ T8066]  ? find_held_lock+0x2d/0x110
[  583.203448][ T8066]  ? preempt_count_sub+0x160/0x160
[  583.208945][ T8066]  ? __fget_light+0x1fc/0x260
[  583.214183][ T8066]  __sys_sendmsg+0x117/0x1e0
[  583.219484][ T8066]  ? __sys_sendmsg_sock+0x30/0x30
[  583.226013][ T8066]  ? syscall_enter_from_user_mode+0x7f/0x120
[  583.233083][ T8066]  do_syscall_64+0x40/0x110
[  583.238524][ T8066]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  583.245859][ T8066] RIP: 0033:0x7fb700fd30b9
[  583.250464][ T8066] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  583.270442][ T8066] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  583.279224][ T8066] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  583.287487][ T8066] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  583.296517][ T8066] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  583.305377][ T8066] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  583.313373][ T8066] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  583.321806][ T8066]  </TASK>
[  583.326641][ T8066] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  583.381441][ T8067] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  583.392954][ T8067] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  583.402108][ T8067] CPU: 0 PID: 8067 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  583.412714][ T8067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  583.423027][ T8067] Call Trace:
[  583.426398][ T8067]  <TASK>
[  583.429328][ T8067]  dump_stack_lvl+0x125/0x1b0
[  583.434044][ T8067]  sysfs_warn_dup+0x7f/0xa0
[  583.438679][ T8067]  sysfs_create_dir_ns+0x249/0x2b0
[  583.443910][ T8067]  ? sysfs_create_mount_point+0xb0/0xb0
[  583.449736][ T8067]  ? spin_bug+0x1d0/0x1d0
[  583.454190][ T8067]  ? net_namespace+0x12/0x40
[  583.458793][ T8067]  ? device_namespace+0x8d/0xc0
[  583.463652][ T8067]  kobject_add_internal+0x2c8/0x970
[  583.468948][ T8067]  kobject_add+0x16f/0x240
[  583.473512][ T8067]  ? kset_create_and_add+0x190/0x190
[  583.479083][ T8067]  ? do_raw_spin_unlock+0x173/0x230
[  583.484648][ T8067]  ? kobject_put+0xbe/0x440
[  583.489356][ T8067]  ? device_add+0xc35/0x1aa0
[  583.494152][ T8067]  device_add+0x289/0x1aa0
[  583.498669][ T8067]  ? device_initialize+0x510/0x510
[  583.503817][ T8067]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  583.510968][ T8067]  ? __init_waitqueue_head+0xca/0x150
[  583.516632][ T8067]  netdev_register_kobject+0x183/0x3f0
[  583.522906][ T8067]  register_netdevice+0xbe6/0x14b0
[  583.528124][ T8067]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  583.534116][ T8067]  ? validate_linkmsg+0x6fc/0x9c0
[  583.539247][ T8067]  br_dev_newlink+0x27/0x110
[  583.543854][ T8067]  ? br_changelink+0x1760/0x1760
[  583.549093][ T8067]  __rtnl_newlink+0x1173/0x1930
[  583.554324][ T8067]  ? rtnl_link_unregister+0x260/0x260
[  583.559831][ T8067]  rtnl_newlink+0x67/0xa0
[  583.564168][ T8067]  ? __rtnl_newlink+0x1930/0x1930
[  583.569491][ T8067]  rtnetlink_rcv_msg+0x3c7/0xe00
[  583.574888][ T8067]  ? rtnl_fill_vf+0x4a0/0x4a0
[  583.580090][ T8067]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  583.586166][ T8067]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  583.593226][ T8067]  netlink_rcv_skb+0x16b/0x440
[  583.598270][ T8067]  ? rtnl_fill_vf+0x4a0/0x4a0
[  583.603138][ T8067]  ? netlink_ack+0x1380/0x1380
[  583.607911][ T8067]  ? lock_sync+0x190/0x190
[  583.612434][ T8067]  ? netlink_deliver_tap+0x1a0/0xd00
[  583.617750][ T8067]  ? _copy_from_iter+0x2c1/0x10f0
[  583.622996][ T8067]  netlink_unicast+0x53b/0x810
[  583.627800][ T8067]  ? netlink_attachskb+0x880/0x880
[  583.633049][ T8067]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  583.639121][ T8067]  ? __phys_addr_symbol+0x30/0x70
[  583.644522][ T8067]  ? __check_object_size+0x323/0x730
[  583.649820][ T8067]  netlink_sendmsg+0x93c/0xe40
[  583.655198][ T8067]  ? netlink_unicast+0x810/0x810
[  583.660366][ T8067]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  583.665672][ T8067]  ? netlink_unicast+0x810/0x810
[  583.670797][ T8067]  __sock_sendmsg+0xd5/0x180
[  583.675595][ T8067]  ____sys_sendmsg+0x6ac/0x940
[  583.680470][ T8067]  ? copy_msghdr_from_user+0x10b/0x160
[  583.686319][ T8067]  ? kernel_sendmsg+0x50/0x50
[  583.691284][ T8067]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  583.698356][ T8067]  ___sys_sendmsg+0x135/0x1d0
[  583.703230][ T8067]  ? do_recvmmsg+0x740/0x740
[  583.708271][ T8067]  ? find_held_lock+0x2d/0x110
[  583.713383][ T8067]  ? preempt_count_sub+0x160/0x160
[  583.718968][ T8067]  ? __fget_light+0x1fc/0x260
[  583.724019][ T8067]  __sys_sendmsg+0x117/0x1e0
[  583.728901][ T8067]  ? __sys_sendmsg_sock+0x30/0x30
[  583.733947][ T8067]  ? xfd_validate_state+0x5d/0x180
[  583.739176][ T8067]  ? syscall_enter_from_user_mode+0x7f/0x120
[  583.745437][ T8067]  do_syscall_64+0x40/0x110
[  583.750037][ T8067]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  583.756284][ T8067] RIP: 0033:0x7fb700fd30b9
[  583.760782][ T8067] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  583.781412][ T8067] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  583.790109][ T8067] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  583.798127][ T8067] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  583.806736][ T8067] RBP: 000000000008e2b5 R08: 0000000000000000 R09: 0000000000000006
[  583.814808][ T8067] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  583.822904][ T8067] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  583.831244][ T8067]  </TASK>
[  583.834767][ T8067] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  583.905857][ T8067] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  583.915533][ T8067] CPU: 1 PID: 8067 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  583.925740][ T8067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  583.936152][ T8067] Call Trace:
[  583.939528][ T8067]  <TASK>
[  583.942474][ T8067]  dump_stack_lvl+0x125/0x1b0
[  583.947273][ T8067]  sysfs_warn_dup+0x7f/0xa0
[  583.951964][ T8067]  sysfs_create_dir_ns+0x249/0x2b0
[  583.957526][ T8067]  ? sysfs_create_mount_point+0xb0/0xb0
[  583.963207][ T8067]  ? spin_bug+0x1d0/0x1d0
[  583.967629][ T8067]  ? net_namespace+0x12/0x40
[  583.972229][ T8067]  ? device_namespace+0x8d/0xc0
[  583.977268][ T8067]  kobject_add_internal+0x2c8/0x970
[  583.982488][ T8067]  kobject_add+0x16f/0x240
[  583.987261][ T8067]  ? kset_create_and_add+0x190/0x190
[  583.992923][ T8067]  ? do_raw_spin_unlock+0x173/0x230
[  583.998303][ T8067]  ? kobject_put+0xbe/0x440
[  584.003164][ T8067]  ? device_add+0xc35/0x1aa0
[  584.007851][ T8067]  device_add+0x289/0x1aa0
[  584.012628][ T8067]  ? device_initialize+0x510/0x510
[  584.017926][ T8067]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  584.024978][ T8067]  ? __init_waitqueue_head+0xca/0x150
[  584.030669][ T8067]  netdev_register_kobject+0x183/0x3f0
[  584.036363][ T8067]  register_netdevice+0xbe6/0x14b0
[  584.041593][ T8067]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  584.047518][ T8067]  ? validate_linkmsg+0x6fc/0x9c0
[  584.052905][ T8067]  br_dev_newlink+0x27/0x110
[  584.057616][ T8067]  ? br_changelink+0x1760/0x1760
[  584.062763][ T8067]  __rtnl_newlink+0x1173/0x1930
[  584.067725][ T8067]  ? rtnl_link_unregister+0x260/0x260
[  584.073136][ T8067]  rtnl_newlink+0x67/0xa0
[  584.078096][ T8067]  ? __rtnl_newlink+0x1930/0x1930
[  584.083126][ T8067]  rtnetlink_rcv_msg+0x3c7/0xe00
[  584.088073][ T8067]  ? rtnl_fill_vf+0x4a0/0x4a0
[  584.092761][ T8067]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  584.098800][ T8067]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  584.105078][ T8067]  netlink_rcv_skb+0x16b/0x440
[  584.110639][ T8067]  ? rtnl_fill_vf+0x4a0/0x4a0
[  584.115456][ T8067]  ? netlink_ack+0x1380/0x1380
[  584.120442][ T8067]  ? lock_sync+0x190/0x190
[  584.125021][ T8067]  ? netlink_deliver_tap+0x1a0/0xd00
[  584.130765][ T8067]  ? _copy_from_iter+0x2c1/0x10f0
[  584.135893][ T8067]  netlink_unicast+0x53b/0x810
[  584.140934][ T8067]  ? netlink_attachskb+0x880/0x880
[  584.146231][ T8067]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  584.152501][ T8067]  ? __phys_addr_symbol+0x30/0x70
[  584.157768][ T8067]  ? __check_object_size+0x323/0x730
[  584.163161][ T8067]  netlink_sendmsg+0x93c/0xe40
[  584.167977][ T8067]  ? netlink_unicast+0x810/0x810
[  584.173104][ T8067]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  584.178800][ T8067]  ? netlink_unicast+0x810/0x810
[  584.183835][ T8067]  __sock_sendmsg+0xd5/0x180
[  584.188521][ T8067]  ____sys_sendmsg+0x6ac/0x940
[  584.193380][ T8067]  ? copy_msghdr_from_user+0x10b/0x160
[  584.198933][ T8067]  ? kernel_sendmsg+0x50/0x50
[  584.203640][ T8067]  ___sys_sendmsg+0x135/0x1d0
[  584.208512][ T8067]  ? do_recvmmsg+0x740/0x740
[  584.213456][ T8067]  ? find_held_lock+0x2d/0x110
[  584.218251][ T8067]  ? preempt_count_sub+0x160/0x160
[  584.223490][ T8067]  ? __fget_light+0x1fc/0x260
[  584.228464][ T8067]  __sys_sendmsg+0x117/0x1e0
[  584.233280][ T8067]  ? __sys_sendmsg_sock+0x30/0x30
[  584.238425][ T8067]  ? syscall_enter_from_user_mode+0x7f/0x120
[  584.244621][ T8067]  do_syscall_64+0x40/0x110
[  584.249224][ T8067]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  584.255589][ T8067] RIP: 0033:0x7fb700fd30b9
[  584.260710][ T8067] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  584.281111][ T8067] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  584.289622][ T8067] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  584.297878][ T8067] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  584.306118][ T8067] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  584.314308][ T8067] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  584.322467][ T8067] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  584.330806][ T8067]  </TASK>
[  584.334735][ T8067] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  584.401557][ T8068] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  584.412433][ T8068] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  584.421824][ T8068] CPU: 1 PID: 8068 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  584.432002][ T8068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  584.442564][ T8068] Call Trace:
[  584.446030][ T8068]  <TASK>
[  584.449422][ T8068]  dump_stack_lvl+0x125/0x1b0
[  584.454114][ T8068]  sysfs_warn_dup+0x7f/0xa0
[  584.458712][ T8068]  sysfs_create_dir_ns+0x249/0x2b0
[  584.463831][ T8068]  ? sysfs_create_mount_point+0xb0/0xb0
[  584.469469][ T8068]  ? spin_bug+0x1d0/0x1d0
[  584.474066][ T8068]  ? net_namespace+0x12/0x40
[  584.478800][ T8068]  ? device_namespace+0x8d/0xc0
[  584.483863][ T8068]  kobject_add_internal+0x2c8/0x970
[  584.489337][ T8068]  kobject_add+0x16f/0x240
[  584.494442][ T8068]  ? kset_create_and_add+0x190/0x190
[  584.499997][ T8068]  ? do_raw_spin_unlock+0x173/0x230
[  584.505465][ T8068]  ? kobject_put+0xbe/0x440
[  584.510301][ T8068]  ? device_add+0xc35/0x1aa0
[  584.515280][ T8068]  device_add+0x289/0x1aa0
[  584.520148][ T8068]  ? device_initialize+0x510/0x510
[  584.525739][ T8068]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  584.532722][ T8068]  ? __init_waitqueue_head+0xca/0x150
[  584.538758][ T8068]  netdev_register_kobject+0x183/0x3f0
[  584.544250][ T8068]  register_netdevice+0xbe6/0x14b0
[  584.549485][ T8068]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  584.555399][ T8068]  ? validate_linkmsg+0x6fc/0x9c0
[  584.560467][ T8068]  br_dev_newlink+0x27/0x110
[  584.565356][ T8068]  ? br_changelink+0x1760/0x1760
[  584.570825][ T8068]  __rtnl_newlink+0x1173/0x1930
[  584.575896][ T8068]  ? rtnl_link_unregister+0x260/0x260
[  584.581842][ T8068]  rtnl_newlink+0x67/0xa0
[  584.586267][ T8068]  ? __rtnl_newlink+0x1930/0x1930
[  584.591580][ T8068]  rtnetlink_rcv_msg+0x3c7/0xe00
[  584.596598][ T8068]  ? rtnl_fill_vf+0x4a0/0x4a0
[  584.601577][ T8068]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  584.607794][ T8068]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  584.614588][ T8068]  netlink_rcv_skb+0x16b/0x440
[  584.619390][ T8068]  ? rtnl_fill_vf+0x4a0/0x4a0
[  584.624286][ T8068]  ? netlink_ack+0x1380/0x1380
[  584.629179][ T8068]  ? lock_sync+0x190/0x190
[  584.633733][ T8068]  ? netlink_deliver_tap+0x1a0/0xd00
[  584.639309][ T8068]  ? _copy_from_iter+0x2c1/0x10f0
[  584.644565][ T8068]  netlink_unicast+0x53b/0x810
[  584.649347][ T8068]  ? netlink_attachskb+0x880/0x880
[  584.654819][ T8068]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  584.661160][ T8068]  ? __phys_addr_symbol+0x30/0x70
[  584.666197][ T8068]  ? __check_object_size+0x323/0x730
[  584.671504][ T8068]  netlink_sendmsg+0x93c/0xe40
[  584.676309][ T8068]  ? netlink_unicast+0x810/0x810
[  584.681354][ T8068]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  584.686744][ T8068]  ? netlink_unicast+0x810/0x810
[  584.692037][ T8068]  __sock_sendmsg+0xd5/0x180
[  584.696642][ T8068]  ____sys_sendmsg+0x6ac/0x940
[  584.701456][ T8068]  ? copy_msghdr_from_user+0x10b/0x160
[  584.706950][ T8068]  ? kernel_sendmsg+0x50/0x50
[  584.711664][ T8068]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  584.718314][ T8068]  ___sys_sendmsg+0x135/0x1d0
[  584.723125][ T8068]  ? do_recvmmsg+0x740/0x740
[  584.727851][ T8068]  ? find_held_lock+0x2d/0x110
[  584.732656][ T8068]  ? preempt_count_sub+0x160/0x160
[  584.737796][ T8068]  ? __fget_light+0x1fc/0x260
[  584.742570][ T8068]  __sys_sendmsg+0x117/0x1e0
[  584.747354][ T8068]  ? __sys_sendmsg_sock+0x30/0x30
[  584.752453][ T8068]  ? syscall_enter_from_user_mode+0x7f/0x120
[  584.758559][ T8068]  do_syscall_64+0x40/0x110
[  584.763279][ T8068]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  584.769840][ T8068] RIP: 0033:0x7fb700fd30b9
[  584.774475][ T8068] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  584.795411][ T8068] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  584.804204][ T8068] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  584.813954][ T8068] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  584.822425][ T8068] RBP: 000000000008e6a8 R08: 0000000000000000 R09: 0000000000000006
[  584.831650][ T8068] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  584.839744][ T8068] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  584.848018][ T8068]  </TASK>
[  584.852938][ T8068] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  584.908098][ T8068] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  584.917400][ T8068] CPU: 1 PID: 8068 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  584.928477][ T8068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  584.940643][ T8068] Call Trace:
[  584.944117][ T8068]  <TASK>
[  584.947244][ T8068]  dump_stack_lvl+0x125/0x1b0
[  584.952044][ T8068]  sysfs_warn_dup+0x7f/0xa0
[  584.956670][ T8068]  sysfs_create_dir_ns+0x249/0x2b0
[  584.962493][ T8068]  ? sysfs_create_mount_point+0xb0/0xb0
[  584.968777][ T8068]  ? spin_bug+0x1d0/0x1d0
[  584.973131][ T8068]  ? net_namespace+0x12/0x40
[  584.978017][ T8068]  ? device_namespace+0x8d/0xc0
[  584.983145][ T8068]  kobject_add_internal+0x2c8/0x970
[  584.988629][ T8068]  kobject_add+0x16f/0x240
[  584.993155][ T8068]  ? kset_create_and_add+0x190/0x190
[  584.998452][ T8068]  ? do_raw_spin_unlock+0x173/0x230
[  585.003743][ T8068]  ? kobject_put+0xbe/0x440
[  585.008254][ T8068]  ? device_add+0xc35/0x1aa0
[  585.013029][ T8068]  device_add+0x289/0x1aa0
[  585.017541][ T8068]  ? device_initialize+0x510/0x510
[  585.023019][ T8068]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  585.030005][ T8068]  ? __init_waitqueue_head+0xca/0x150
[  585.036090][ T8068]  netdev_register_kobject+0x183/0x3f0
[  585.041831][ T8068]  register_netdevice+0xbe6/0x14b0
[  585.047048][ T8068]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  585.053040][ T8068]  ? validate_linkmsg+0x6fc/0x9c0
[  585.058076][ T8068]  br_dev_newlink+0x27/0x110
[  585.062677][ T8068]  ? br_changelink+0x1760/0x1760
[  585.067710][ T8068]  __rtnl_newlink+0x1173/0x1930
[  585.072604][ T8068]  ? rtnl_link_unregister+0x260/0x260
[  585.078102][ T8068]  rtnl_newlink+0x67/0xa0
[  585.082621][ T8068]  ? __rtnl_newlink+0x1930/0x1930
[  585.087833][ T8068]  rtnetlink_rcv_msg+0x3c7/0xe00
[  585.092874][ T8068]  ? rtnl_fill_vf+0x4a0/0x4a0
[  585.097770][ T8068]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  585.104144][ T8068]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  585.110160][ T8068]  netlink_rcv_skb+0x16b/0x440
[  585.115383][ T8068]  ? rtnl_fill_vf+0x4a0/0x4a0
[  585.120167][ T8068]  ? netlink_ack+0x1380/0x1380
[  585.124941][ T8068]  ? lock_sync+0x190/0x190
[  585.129470][ T8068]  ? netlink_deliver_tap+0x1a0/0xd00
[  585.134780][ T8068]  ? _copy_from_iter+0x2c1/0x10f0
[  585.139997][ T8068]  netlink_unicast+0x53b/0x810
[  585.144962][ T8068]  ? netlink_attachskb+0x880/0x880
[  585.150096][ T8068]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  585.156348][ T8068]  ? __phys_addr_symbol+0x30/0x70
[  585.161730][ T8068]  ? __check_object_size+0x323/0x730
[  585.167116][ T8068]  netlink_sendmsg+0x93c/0xe40
[  585.171928][ T8068]  ? netlink_unicast+0x810/0x810
[  585.176930][ T8068]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  585.182263][ T8068]  ? netlink_unicast+0x810/0x810
[  585.187303][ T8068]  __sock_sendmsg+0xd5/0x180
[  585.191936][ T8068]  ____sys_sendmsg+0x6ac/0x940
[  585.197233][ T8068]  ? copy_msghdr_from_user+0x10b/0x160
[  585.202707][ T8068]  ? kernel_sendmsg+0x50/0x50
[  585.207407][ T8068]  ? hlock_class+0x4e/0x130
[  585.212277][ T8068]  ? __lock_acquire+0x14e0/0x3b10
[  585.217668][ T8068]  ___sys_sendmsg+0x135/0x1d0
[  585.222359][ T8068]  ? do_recvmmsg+0x740/0x740
[  585.227063][ T8068]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  585.233091][ T8068]  ? find_held_lock+0x2d/0x110
[  585.238048][ T8068]  ? __fget_light+0x1fc/0x260
[  585.242765][ T8068]  __sys_sendmsg+0x117/0x1e0
[  585.247563][ T8068]  ? __sys_sendmsg_sock+0x30/0x30
[  585.252905][ T8068]  ? __do_sys_rseq+0x750/0x750
[  585.257798][ T8068]  ? syscall_enter_from_user_mode+0x7f/0x120
[  585.263904][ T8068]  do_syscall_64+0x40/0x110
[  585.268871][ T8068]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  585.275135][ T8068] RIP: 0033:0x7fb700fd30b9
[  585.279810][ T8068] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  585.299856][ T8068] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  585.308548][ T8068] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  585.317055][ T8068] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  585.325305][ T8068] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  585.333974][ T8068] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  585.342319][ T8068] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  585.350670][ T8068]  </TASK>
[  585.354114][ T8068] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  585.411167][ T8069] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  585.421787][ T8069] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  585.431253][ T8069] CPU: 1 PID: 8069 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  585.441859][ T8069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  585.452143][ T8069] Call Trace:
[  585.455836][ T8069]  <TASK>
[  585.458791][ T8069]  dump_stack_lvl+0x125/0x1b0
[  585.463585][ T8069]  sysfs_warn_dup+0x7f/0xa0
[  585.468226][ T8069]  sysfs_create_dir_ns+0x249/0x2b0
[  585.473456][ T8069]  ? sysfs_create_mount_point+0xb0/0xb0
[  585.479414][ T8069]  ? spin_bug+0x1d0/0x1d0
[  585.484041][ T8069]  ? net_namespace+0x12/0x40
[  585.489018][ T8069]  ? device_namespace+0x8d/0xc0
[  585.494270][ T8069]  kobject_add_internal+0x2c8/0x970
[  585.499605][ T8069]  kobject_add+0x16f/0x240
[  585.504135][ T8069]  ? kset_create_and_add+0x190/0x190
[  585.509521][ T8069]  ? do_raw_spin_unlock+0x173/0x230
[  585.514905][ T8069]  ? kobject_put+0xbe/0x440
[  585.519690][ T8069]  ? device_add+0xc35/0x1aa0
[  585.524463][ T8069]  device_add+0x289/0x1aa0
[  585.528989][ T8069]  ? device_initialize+0x510/0x510
[  585.534212][ T8069]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  585.541284][ T8069]  ? __init_waitqueue_head+0xca/0x150
[  585.547237][ T8069]  netdev_register_kobject+0x183/0x3f0
[  585.553134][ T8069]  register_netdevice+0xbe6/0x14b0
[  585.558539][ T8069]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  585.565233][ T8069]  ? validate_linkmsg+0x6fc/0x9c0
[  585.570626][ T8069]  br_dev_newlink+0x27/0x110
[  585.575314][ T8069]  ? br_changelink+0x1760/0x1760
[  585.580278][ T8069]  __rtnl_newlink+0x1173/0x1930
[  585.585273][ T8069]  ? rtnl_link_unregister+0x260/0x260
[  585.590720][ T8069]  rtnl_newlink+0x67/0xa0
[  585.595250][ T8069]  ? __rtnl_newlink+0x1930/0x1930
[  585.600828][ T8069]  rtnetlink_rcv_msg+0x3c7/0xe00
[  585.605809][ T8069]  ? rtnl_fill_vf+0x4a0/0x4a0
[  585.610583][ T8069]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  585.616968][ T8069]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  585.623060][ T8069]  netlink_rcv_skb+0x16b/0x440
[  585.627931][ T8069]  ? rtnl_fill_vf+0x4a0/0x4a0
[  585.632725][ T8069]  ? netlink_ack+0x1380/0x1380
[  585.637675][ T8069]  ? lock_sync+0x190/0x190
[  585.642467][ T8069]  ? netlink_deliver_tap+0x1a0/0xd00
[  585.648460][ T8069]  ? _copy_from_iter+0x2c1/0x10f0
[  585.653771][ T8069]  netlink_unicast+0x53b/0x810
[  585.659900][ T8069]  ? netlink_attachskb+0x880/0x880
[  585.665311][ T8069]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  585.671317][ T8069]  ? __phys_addr_symbol+0x30/0x70
[  585.676810][ T8069]  ? __check_object_size+0x323/0x730
[  585.682172][ T8069]  netlink_sendmsg+0x93c/0xe40
[  585.687105][ T8069]  ? netlink_unicast+0x810/0x810
[  585.692245][ T8069]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  585.700404][ T8069]  ? netlink_unicast+0x810/0x810
[  585.705702][ T8069]  __sock_sendmsg+0xd5/0x180
[  585.710477][ T8069]  ____sys_sendmsg+0x6ac/0x940
[  585.715251][ T8069]  ? copy_msghdr_from_user+0x10b/0x160
[  585.721069][ T8069]  ? kernel_sendmsg+0x50/0x50
[  585.725848][ T8069]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  585.732394][ T8069]  ___sys_sendmsg+0x135/0x1d0
[  585.737729][ T8069]  ? do_recvmmsg+0x740/0x740
[  585.742535][ T8069]  ? find_held_lock+0x2d/0x110
[  585.747732][ T8069]  ? preempt_count_sub+0x160/0x160
[  585.752981][ T8069]  ? __fget_light+0x1fc/0x260
[  585.758384][ T8069]  __sys_sendmsg+0x117/0x1e0
[  585.762995][ T8069]  ? __sys_sendmsg_sock+0x30/0x30
[  585.768050][ T8069]  ? syscall_enter_from_user_mode+0x7f/0x120
[  585.774413][ T8069]  do_syscall_64+0x40/0x110
[  585.779206][ T8069]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  585.785516][ T8069] RIP: 0033:0x7fb700fd30b9
[  585.790140][ T8069] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  585.811091][ T8069] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  585.820057][ T8069] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  585.828409][ T8069] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  585.836419][ T8069] RBP: 000000000008eaa4 R08: 0000000000000000 R09: 0000000000000006
[  585.844689][ T8069] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  585.853314][ T8069] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  585.861722][ T8069]  </TASK>
[  585.865257][ T8069] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  585.916285][ T8069] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  585.925931][ T8069] CPU: 0 PID: 8069 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  585.936053][ T8069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  585.946375][ T8069] Call Trace:
[  585.949805][ T8069]  <TASK>
[  585.952995][ T8069]  dump_stack_lvl+0x125/0x1b0
[  585.957708][ T8069]  sysfs_warn_dup+0x7f/0xa0
[  585.962617][ T8069]  sysfs_create_dir_ns+0x249/0x2b0
[  585.967935][ T8069]  ? sysfs_create_mount_point+0xb0/0xb0
[  585.973594][ T8069]  ? spin_bug+0x1d0/0x1d0
[  585.977961][ T8069]  ? net_namespace+0x12/0x40
[  585.982580][ T8069]  ? device_namespace+0x8d/0xc0
[  585.987460][ T8069]  kobject_add_internal+0x2c8/0x970
[  585.992777][ T8069]  kobject_add+0x16f/0x240
[  585.997200][ T8069]  ? kset_create_and_add+0x190/0x190
[  586.002510][ T8069]  ? do_raw_spin_unlock+0x173/0x230
[  586.007708][ T8069]  ? kobject_put+0xbe/0x440
[  586.012211][ T8069]  ? device_add+0xc35/0x1aa0
[  586.017063][ T8069]  device_add+0x289/0x1aa0
[  586.021568][ T8069]  ? device_initialize+0x510/0x510
[  586.026765][ T8069]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  586.033705][ T8069]  ? __init_waitqueue_head+0xca/0x150
[  586.039167][ T8069]  netdev_register_kobject+0x183/0x3f0
[  586.044738][ T8069]  register_netdevice+0xbe6/0x14b0
[  586.049958][ T8069]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  586.055906][ T8069]  ? validate_linkmsg+0x6fc/0x9c0
[  586.060944][ T8069]  br_dev_newlink+0x27/0x110
[  586.065615][ T8069]  ? br_changelink+0x1760/0x1760
[  586.070668][ T8069]  __rtnl_newlink+0x1173/0x1930
[  586.076525][ T8069]  ? rtnl_link_unregister+0x260/0x260
[  586.082133][ T8069]  rtnl_newlink+0x67/0xa0
[  586.087007][ T8069]  ? __rtnl_newlink+0x1930/0x1930
[  586.092220][ T8069]  rtnetlink_rcv_msg+0x3c7/0xe00
[  586.097553][ T8069]  ? rtnl_fill_vf+0x4a0/0x4a0
[  586.103990][ T8069]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  586.110467][ T8069]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  586.116821][ T8069]  netlink_rcv_skb+0x16b/0x440
[  586.122043][ T8069]  ? rtnl_fill_vf+0x4a0/0x4a0
[  586.127176][ T8069]  ? netlink_ack+0x1380/0x1380
[  586.132493][ T8069]  ? lock_sync+0x190/0x190
[  586.137210][ T8069]  ? netlink_deliver_tap+0x1a0/0xd00
[  586.143053][ T8069]  ? _copy_from_iter+0x2c1/0x10f0
[  586.148650][ T8069]  netlink_unicast+0x53b/0x810
[  586.153644][ T8069]  ? netlink_attachskb+0x880/0x880
[  586.159128][ T8069]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  586.165379][ T8069]  ? __phys_addr_symbol+0x30/0x70
[  586.170795][ T8069]  ? __check_object_size+0x323/0x730
[  586.176461][ T8069]  netlink_sendmsg+0x93c/0xe40
[  586.181454][ T8069]  ? netlink_unicast+0x810/0x810
[  586.187125][ T8069]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  586.192875][ T8069]  ? netlink_unicast+0x810/0x810
[  586.197926][ T8069]  __sock_sendmsg+0xd5/0x180
[  586.203339][ T8069]  ____sys_sendmsg+0x6ac/0x940
[  586.208296][ T8069]  ? copy_msghdr_from_user+0x10b/0x160
[  586.214201][ T8069]  ? kernel_sendmsg+0x50/0x50
[  586.220040][ T8069]  ___sys_sendmsg+0x135/0x1d0
[  586.225181][ T8069]  ? do_recvmmsg+0x740/0x740
[  586.230239][ T8069]  ? find_held_lock+0x2d/0x110
[  586.235126][ T8069]  ? preempt_count_sub+0x160/0x160
[  586.240415][ T8069]  ? __fget_light+0x1fc/0x260
[  586.245742][ T8069]  __sys_sendmsg+0x117/0x1e0
[  586.250596][ T8069]  ? __sys_sendmsg_sock+0x30/0x30
[  586.256182][ T8069]  ? syscall_enter_from_user_mode+0x7f/0x120
[  586.262307][ T8069]  do_syscall_64+0x40/0x110
[  586.267271][ T8069]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  586.273413][ T8069] RIP: 0033:0x7fb700fd30b9
[  586.278642][ T8069] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  586.299580][ T8069] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  586.308359][ T8069] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  586.316745][ T8069] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  586.324987][ T8069] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  586.333152][ T8069] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  586.341725][ T8069] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  586.349887][ T8069]  </TASK>
[  586.353773][ T8069] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  586.411521][ T8070] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  586.422375][ T8070] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  586.432750][ T8070] CPU: 0 PID: 8070 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  586.443458][ T8070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  586.454918][ T8070] Call Trace:
[  586.458485][ T8070]  <TASK>
[  586.461537][ T8070]  dump_stack_lvl+0x125/0x1b0
[  586.466407][ T8070]  sysfs_warn_dup+0x7f/0xa0
[  586.471193][ T8070]  sysfs_create_dir_ns+0x249/0x2b0
[  586.476600][ T8070]  ? sysfs_create_mount_point+0xb0/0xb0
[  586.482377][ T8070]  ? spin_bug+0x1d0/0x1d0
[  586.486916][ T8070]  ? net_namespace+0x12/0x40
[  586.491651][ T8070]  ? device_namespace+0x8d/0xc0
[  586.496701][ T8070]  kobject_add_internal+0x2c8/0x970
[  586.502167][ T8070]  kobject_add+0x16f/0x240
[  586.506863][ T8070]  ? kset_create_and_add+0x190/0x190
[  586.512374][ T8070]  ? do_raw_spin_unlock+0x173/0x230
[  586.518188][ T8070]  ? kobject_put+0xbe/0x440
[  586.522980][ T8070]  ? device_add+0xc35/0x1aa0
[  586.527689][ T8070]  device_add+0x289/0x1aa0
[  586.532118][ T8070]  ? device_initialize+0x510/0x510
[  586.537703][ T8070]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  586.545837][ T8070]  ? __init_waitqueue_head+0xca/0x150
[  586.551582][ T8070]  netdev_register_kobject+0x183/0x3f0
[  586.557245][ T8070]  register_netdevice+0xbe6/0x14b0
[  586.562551][ T8070]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  586.568622][ T8070]  ? validate_linkmsg+0x6fc/0x9c0
[  586.573818][ T8070]  br_dev_newlink+0x27/0x110
[  586.578404][ T8070]  ? br_changelink+0x1760/0x1760
[  586.584034][ T8070]  __rtnl_newlink+0x1173/0x1930
[  586.588890][ T8070]  ? rtnl_link_unregister+0x260/0x260
[  586.594597][ T8070]  rtnl_newlink+0x67/0xa0
[  586.599245][ T8070]  ? __rtnl_newlink+0x1930/0x1930
[  586.604453][ T8070]  rtnetlink_rcv_msg+0x3c7/0xe00
[  586.609556][ T8070]  ? rtnl_fill_vf+0x4a0/0x4a0
[  586.614343][ T8070]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  586.620430][ T8070]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  586.626511][ T8070]  netlink_rcv_skb+0x16b/0x440
[  586.631766][ T8070]  ? rtnl_fill_vf+0x4a0/0x4a0
[  586.636511][ T8070]  ? netlink_ack+0x1380/0x1380
[  586.641385][ T8070]  ? lock_sync+0x190/0x190
[  586.645846][ T8070]  ? netlink_deliver_tap+0x1a0/0xd00
[  586.651152][ T8070]  ? _copy_from_iter+0x2c1/0x10f0
[  586.656204][ T8070]  netlink_unicast+0x53b/0x810
[  586.661257][ T8070]  ? netlink_attachskb+0x880/0x880
[  586.666576][ T8070]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  586.672659][ T8070]  ? __phys_addr_symbol+0x30/0x70
[  586.677800][ T8070]  ? __check_object_size+0x323/0x730
[  586.683470][ T8070]  netlink_sendmsg+0x93c/0xe40
[  586.688378][ T8070]  ? netlink_unicast+0x810/0x810
[  586.693531][ T8070]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  586.698937][ T8070]  ? netlink_unicast+0x810/0x810
[  586.703887][ T8070]  __sock_sendmsg+0xd5/0x180
[  586.708483][ T8070]  ____sys_sendmsg+0x6ac/0x940
[  586.713277][ T8070]  ? copy_msghdr_from_user+0x10b/0x160
[  586.718940][ T8070]  ? kernel_sendmsg+0x50/0x50
[  586.723744][ T8070]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  586.730294][ T8070]  ___sys_sendmsg+0x135/0x1d0
[  586.735104][ T8070]  ? do_recvmmsg+0x740/0x740
[  586.739890][ T8070]  ? find_held_lock+0x2d/0x110
[  586.744783][ T8070]  ? preempt_count_sub+0x160/0x160
[  586.750255][ T8070]  ? __fget_light+0x1fc/0x260
[  586.755475][ T8070]  __sys_sendmsg+0x117/0x1e0
[  586.760161][ T8070]  ? __sys_sendmsg_sock+0x30/0x30
[  586.765576][ T8070]  ? xfd_validate_state+0x5d/0x180
[  586.770876][ T8070]  ? syscall_enter_from_user_mode+0x7f/0x120
[  586.776859][ T8070]  do_syscall_64+0x40/0x110
[  586.781585][ T8070]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  586.787593][ T8070] RIP: 0033:0x7fb700fd30b9
[  586.792541][ T8070] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  586.813723][ T8070] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  586.822688][ T8070] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  586.831728][ T8070] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  586.841046][ T8070] RBP: 000000000008ee96 R08: 0000000000000000 R09: 0000000000000006
[  586.850714][ T8070] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  586.859487][ T8070] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  586.868180][ T8070]  </TASK>
[  586.874243][ T8070] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  586.965939][ T8070] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  586.975911][ T8070] CPU: 0 PID: 8070 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  586.986765][ T8070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  586.997472][ T8070] Call Trace:
[  587.000938][ T8070]  <TASK>
[  587.003896][ T8070]  dump_stack_lvl+0x125/0x1b0
[  587.008678][ T8070]  sysfs_warn_dup+0x7f/0xa0
[  587.013192][ T8070]  sysfs_create_dir_ns+0x249/0x2b0
[  587.018415][ T8070]  ? sysfs_create_mount_point+0xb0/0xb0
[  587.023996][ T8070]  ? spin_bug+0x1d0/0x1d0
[  587.028337][ T8070]  ? net_namespace+0x12/0x40
[  587.033124][ T8070]  ? device_namespace+0x8d/0xc0
[  587.038187][ T8070]  kobject_add_internal+0x2c8/0x970
[  587.043406][ T8070]  kobject_add+0x16f/0x240
[  587.047926][ T8070]  ? kset_create_and_add+0x190/0x190
[  587.053489][ T8070]  ? do_raw_spin_unlock+0x173/0x230
[  587.058778][ T8070]  ? kobject_put+0xbe/0x440
[  587.063554][ T8070]  ? device_add+0xc35/0x1aa0
[  587.068241][ T8070]  device_add+0x289/0x1aa0
[  587.072749][ T8070]  ? device_initialize+0x510/0x510
[  587.078129][ T8070]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  587.084998][ T8070]  ? __init_waitqueue_head+0xca/0x150
[  587.090453][ T8070]  netdev_register_kobject+0x183/0x3f0
[  587.096188][ T8070]  register_netdevice+0xbe6/0x14b0
[  587.101519][ T8070]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  587.107727][ T8070]  ? validate_linkmsg+0x6fc/0x9c0
[  587.113336][ T8070]  br_dev_newlink+0x27/0x110
[  587.117950][ T8070]  ? br_changelink+0x1760/0x1760
[  587.122986][ T8070]  __rtnl_newlink+0x1173/0x1930
[  587.128080][ T8070]  ? rtnl_link_unregister+0x260/0x260
[  587.133958][ T8070]  rtnl_newlink+0x67/0xa0
[  587.138398][ T8070]  ? __rtnl_newlink+0x1930/0x1930
[  587.143529][ T8070]  rtnetlink_rcv_msg+0x3c7/0xe00
[  587.148652][ T8070]  ? rtnl_fill_vf+0x4a0/0x4a0
[  587.153547][ T8070]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  587.160164][ T8070]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  587.166863][ T8070]  netlink_rcv_skb+0x16b/0x440
[  587.171995][ T8070]  ? rtnl_fill_vf+0x4a0/0x4a0
[  587.176770][ T8070]  ? netlink_ack+0x1380/0x1380
[  587.181806][ T8070]  ? lock_sync+0x190/0x190
[  587.186349][ T8070]  ? netlink_deliver_tap+0x1a0/0xd00
[  587.191748][ T8070]  ? _copy_from_iter+0x2c1/0x10f0
[  587.197138][ T8070]  netlink_unicast+0x53b/0x810
[  587.202116][ T8070]  ? netlink_attachskb+0x880/0x880
[  587.207445][ T8070]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  587.213899][ T8070]  ? __phys_addr_symbol+0x30/0x70
[  587.219033][ T8070]  ? __check_object_size+0x323/0x730
[  587.224442][ T8070]  netlink_sendmsg+0x93c/0xe40
[  587.229505][ T8070]  ? netlink_unicast+0x810/0x810
[  587.235155][ T8070]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  587.240453][ T8070]  ? netlink_unicast+0x810/0x810
[  587.245489][ T8070]  __sock_sendmsg+0xd5/0x180
[  587.250185][ T8070]  ____sys_sendmsg+0x6ac/0x940
[  587.255019][ T8070]  ? copy_msghdr_from_user+0x10b/0x160
[  587.260929][ T8070]  ? kernel_sendmsg+0x50/0x50
[  587.265923][ T8070]  ? hlock_class+0x4e/0x130
[  587.270541][ T8070]  ? __lock_acquire+0x14e0/0x3b10
[  587.275948][ T8070]  ___sys_sendmsg+0x135/0x1d0
[  587.280645][ T8070]  ? do_recvmmsg+0x740/0x740
[  587.285426][ T8070]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  587.291533][ T8070]  ? find_held_lock+0x2d/0x110
[  587.296546][ T8070]  ? __fget_light+0x1fc/0x260
[  587.301373][ T8070]  __sys_sendmsg+0x117/0x1e0
[  587.306097][ T8070]  ? __sys_sendmsg_sock+0x30/0x30
[  587.311359][ T8070]  ? __do_sys_rseq+0x750/0x750
[  587.316329][ T8070]  ? syscall_enter_from_user_mode+0x7f/0x120
[  587.322774][ T8070]  do_syscall_64+0x40/0x110
[  587.327303][ T8070]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  587.333648][ T8070] RIP: 0033:0x7fb700fd30b9
[  587.338189][ T8070] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  587.359465][ T8070] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  587.368527][ T8070] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  587.376679][ T8070] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  587.385175][ T8070] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  587.393318][ T8070] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  587.401291][ T8070] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  587.409367][ T8070]  </TASK>
[  587.413697][ T8070] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  587.473640][ T8071] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  587.484669][ T8071] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  587.494376][ T8071] CPU: 0 PID: 8071 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  587.508644][ T8071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  587.519349][ T8071] Call Trace:
[  587.522654][ T8071]  <TASK>
[  587.525767][ T8071]  dump_stack_lvl+0x125/0x1b0
[  587.530724][ T8071]  sysfs_warn_dup+0x7f/0xa0
[  587.535335][ T8071]  sysfs_create_dir_ns+0x249/0x2b0
[  587.540640][ T8071]  ? sysfs_create_mount_point+0xb0/0xb0
[  587.546636][ T8071]  ? spin_bug+0x1d0/0x1d0
[  587.550977][ T8071]  ? net_namespace+0x12/0x40
[  587.555589][ T8071]  ? device_namespace+0x8d/0xc0
[  587.560561][ T8071]  kobject_add_internal+0x2c8/0x970
[  587.566046][ T8071]  kobject_add+0x16f/0x240
[  587.570830][ T8071]  ? kset_create_and_add+0x190/0x190
[  587.576213][ T8071]  ? do_raw_spin_unlock+0x173/0x230
[  587.582169][ T8071]  ? kobject_put+0xbe/0x440
[  587.586805][ T8071]  ? device_add+0xc35/0x1aa0
[  587.591684][ T8071]  device_add+0x289/0x1aa0
[  587.596135][ T8071]  ? device_initialize+0x510/0x510
[  587.601286][ T8071]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  587.608256][ T8071]  ? __init_waitqueue_head+0xca/0x150
[  587.613830][ T8071]  netdev_register_kobject+0x183/0x3f0
[  587.619400][ T8071]  register_netdevice+0xbe6/0x14b0
[  587.624880][ T8071]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  587.631132][ T8071]  ? validate_linkmsg+0x6fc/0x9c0
[  587.636601][ T8071]  br_dev_newlink+0x27/0x110
[  587.641809][ T8071]  ? br_changelink+0x1760/0x1760
[  587.646761][ T8071]  __rtnl_newlink+0x1173/0x1930
[  587.651831][ T8071]  ? rtnl_link_unregister+0x260/0x260
[  587.657351][ T8071]  rtnl_newlink+0x67/0xa0
[  587.662316][ T8071]  ? __rtnl_newlink+0x1930/0x1930
[  587.668058][ T8071]  rtnetlink_rcv_msg+0x3c7/0xe00
[  587.673123][ T8071]  ? rtnl_fill_vf+0x4a0/0x4a0
[  587.677987][ T8071]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  587.684247][ T8071]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  587.690337][ T8071]  netlink_rcv_skb+0x16b/0x440
[  587.695226][ T8071]  ? rtnl_fill_vf+0x4a0/0x4a0
[  587.700349][ T8071]  ? netlink_ack+0x1380/0x1380
[  587.705243][ T8071]  ? lock_sync+0x190/0x190
[  587.709715][ T8071]  ? netlink_deliver_tap+0x1a0/0xd00
[  587.715129][ T8071]  ? _copy_from_iter+0x2c1/0x10f0
[  587.720217][ T8071]  netlink_unicast+0x53b/0x810
[  587.725041][ T8071]  ? netlink_attachskb+0x880/0x880
[  587.730171][ T8071]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  587.736342][ T8071]  ? __phys_addr_symbol+0x30/0x70
[  587.741469][ T8071]  ? __check_object_size+0x323/0x730
[  587.746868][ T8071]  netlink_sendmsg+0x93c/0xe40
[  587.751743][ T8071]  ? netlink_unicast+0x810/0x810
[  587.756965][ T8071]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  587.762352][ T8071]  ? netlink_unicast+0x810/0x810
[  587.767457][ T8071]  __sock_sendmsg+0xd5/0x180
[  587.772315][ T8071]  ____sys_sendmsg+0x6ac/0x940
[  587.777529][ T8071]  ? copy_msghdr_from_user+0x10b/0x160
[  587.783355][ T8071]  ? kernel_sendmsg+0x50/0x50
[  587.788130][ T8071]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  587.794310][ T8071]  ___sys_sendmsg+0x135/0x1d0
[  587.799095][ T8071]  ? do_recvmmsg+0x740/0x740
[  587.803692][ T8071]  ? find_held_lock+0x2d/0x110
[  587.808561][ T8071]  ? preempt_count_sub+0x160/0x160
[  587.814041][ T8071]  ? __fget_light+0x1fc/0x260
[  587.819072][ T8071]  __sys_sendmsg+0x117/0x1e0
[  587.824537][ T8071]  ? __sys_sendmsg_sock+0x30/0x30
[  587.829966][ T8071]  ? xfd_validate_state+0x5d/0x180
[  587.835573][ T8071]  ? syscall_enter_from_user_mode+0x7f/0x120
[  587.841614][ T8071]  do_syscall_64+0x40/0x110
[  587.846247][ T8071]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  587.852273][ T8071] RIP: 0033:0x7fb700fd30b9
[  587.856716][ T8071] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  587.876781][ T8071] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  587.885572][ T8071] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  587.894004][ T8071] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  587.902094][ T8071] RBP: 000000000008f27d R08: 0000000000000000 R09: 0000000000000006
[  587.910463][ T8071] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  587.918793][ T8071] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  587.927104][ T8071]  </TASK>
[  587.932183][ T8071] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  587.986430][ T8071] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  587.996091][ T8071] CPU: 0 PID: 8071 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  588.006667][ T8071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  588.018202][ T8071] Call Trace:
[  588.021596][ T8071]  <TASK>
[  588.024631][ T8071]  dump_stack_lvl+0x125/0x1b0
[  588.029617][ T8071]  sysfs_warn_dup+0x7f/0xa0
[  588.034199][ T8071]  sysfs_create_dir_ns+0x249/0x2b0
[  588.039330][ T8071]  ? sysfs_create_mount_point+0xb0/0xb0
[  588.045072][ T8071]  ? spin_bug+0x1d0/0x1d0
[  588.049423][ T8071]  ? net_namespace+0x12/0x40
[  588.054299][ T8071]  ? device_namespace+0x8d/0xc0
[  588.059270][ T8071]  kobject_add_internal+0x2c8/0x970
[  588.064507][ T8071]  kobject_add+0x16f/0x240
[  588.069817][ T8071]  ? kset_create_and_add+0x190/0x190
[  588.075390][ T8071]  ? do_raw_spin_unlock+0x173/0x230
[  588.080683][ T8071]  ? kobject_put+0xbe/0x440
[  588.085370][ T8071]  ? device_add+0xc35/0x1aa0
[  588.090080][ T8071]  device_add+0x289/0x1aa0
[  588.094766][ T8071]  ? device_initialize+0x510/0x510
[  588.100098][ T8071]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  588.107051][ T8071]  ? __init_waitqueue_head+0xca/0x150
[  588.112441][ T8071]  netdev_register_kobject+0x183/0x3f0
[  588.118188][ T8071]  register_netdevice+0xbe6/0x14b0
[  588.123489][ T8071]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  588.130038][ T8071]  ? validate_linkmsg+0x6fc/0x9c0
[  588.135335][ T8071]  br_dev_newlink+0x27/0x110
[  588.140140][ T8071]  ? br_changelink+0x1760/0x1760
[  588.145205][ T8071]  __rtnl_newlink+0x1173/0x1930
[  588.150168][ T8071]  ? rtnl_link_unregister+0x260/0x260
[  588.155694][ T8071]  rtnl_newlink+0x67/0xa0
[  588.160228][ T8071]  ? __rtnl_newlink+0x1930/0x1930
[  588.165445][ T8071]  rtnetlink_rcv_msg+0x3c7/0xe00
[  588.170488][ T8071]  ? rtnl_fill_vf+0x4a0/0x4a0
[  588.175454][ T8071]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  588.181540][ T8071]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  588.188060][ T8071]  netlink_rcv_skb+0x16b/0x440
[  588.193013][ T8071]  ? rtnl_fill_vf+0x4a0/0x4a0
[  588.197895][ T8071]  ? netlink_ack+0x1380/0x1380
[  588.202846][ T8071]  ? lock_sync+0x190/0x190
[  588.207462][ T8071]  ? netlink_deliver_tap+0x1a0/0xd00
[  588.212855][ T8071]  ? _copy_from_iter+0x2c1/0x10f0
[  588.218080][ T8071]  netlink_unicast+0x53b/0x810
[  588.223229][ T8071]  ? netlink_attachskb+0x880/0x880
[  588.228523][ T8071]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  588.234858][ T8071]  ? __phys_addr_symbol+0x30/0x70
[  588.240683][ T8071]  ? __check_object_size+0x323/0x730
[  588.246071][ T8071]  netlink_sendmsg+0x93c/0xe40
[  588.250856][ T8071]  ? netlink_unicast+0x810/0x810
[  588.255902][ T8071]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  588.261467][ T8071]  ? netlink_unicast+0x810/0x810
[  588.266602][ T8071]  __sock_sendmsg+0xd5/0x180
[  588.271291][ T8071]  ____sys_sendmsg+0x6ac/0x940
[  588.276525][ T8071]  ? copy_msghdr_from_user+0x10b/0x160
[  588.282267][ T8071]  ? kernel_sendmsg+0x50/0x50
[  588.286953][ T8071]  ? hlock_class+0x4e/0x130
[  588.291554][ T8071]  ? __lock_acquire+0x14e0/0x3b10
[  588.296861][ T8071]  ___sys_sendmsg+0x135/0x1d0
[  588.301754][ T8071]  ? do_recvmmsg+0x740/0x740
[  588.306524][ T8071]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  588.312602][ T8071]  ? find_held_lock+0x2d/0x110
[  588.317431][ T8071]  ? __fget_light+0x1fc/0x260
[  588.322727][ T8071]  __sys_sendmsg+0x117/0x1e0
[  588.327675][ T8071]  ? __sys_sendmsg_sock+0x30/0x30
[  588.332912][ T8071]  ? __do_sys_rseq+0x750/0x750
[  588.337999][ T8071]  ? syscall_enter_from_user_mode+0x7f/0x120
[  588.344116][ T8071]  do_syscall_64+0x40/0x110
[  588.348706][ T8071]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  588.354618][ T8071] RIP: 0033:0x7fb700fd30b9
[  588.359038][ T8071] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  588.378911][ T8071] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  588.387524][ T8071] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  588.395670][ T8071] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  588.403639][ T8071] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  588.411611][ T8071] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  588.419752][ T8071] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  588.428006][ T8071]  </TASK>
[  588.431512][ T8071] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  588.490880][ T8072] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  588.501390][ T8072] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  588.510773][ T8072] CPU: 0 PID: 8072 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  588.520849][ T8072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  588.531263][ T8072] Call Trace:
[  588.534644][ T8072]  <TASK>
[  588.537587][ T8072]  dump_stack_lvl+0x125/0x1b0
[  588.542453][ T8072]  sysfs_warn_dup+0x7f/0xa0
[  588.547147][ T8072]  sysfs_create_dir_ns+0x249/0x2b0
[  588.552443][ T8072]  ? sysfs_create_mount_point+0xb0/0xb0
[  588.558471][ T8072]  ? spin_bug+0x1d0/0x1d0
[  588.563002][ T8072]  ? net_namespace+0x12/0x40
[  588.567882][ T8072]  ? device_namespace+0x8d/0xc0
[  588.572935][ T8072]  kobject_add_internal+0x2c8/0x970
[  588.578505][ T8072]  kobject_add+0x16f/0x240
[  588.583211][ T8072]  ? kset_create_and_add+0x190/0x190
[  588.588962][ T8072]  ? do_raw_spin_unlock+0x173/0x230
[  588.594233][ T8072]  ? kobject_put+0xbe/0x440
[  588.599135][ T8072]  ? device_add+0xc35/0x1aa0
[  588.603762][ T8072]  device_add+0x289/0x1aa0
[  588.608359][ T8072]  ? device_initialize+0x510/0x510
[  588.613727][ T8072]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  588.620718][ T8072]  ? __init_waitqueue_head+0xca/0x150
[  588.626661][ T8072]  netdev_register_kobject+0x183/0x3f0
[  588.632709][ T8072]  register_netdevice+0xbe6/0x14b0
[  588.637931][ T8072]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  588.644025][ T8072]  ? validate_linkmsg+0x6fc/0x9c0
[  588.649437][ T8072]  br_dev_newlink+0x27/0x110
[  588.654261][ T8072]  ? br_changelink+0x1760/0x1760
[  588.659551][ T8072]  __rtnl_newlink+0x1173/0x1930
[  588.664427][ T8072]  ? rtnl_link_unregister+0x260/0x260
[  588.669925][ T8072]  rtnl_newlink+0x67/0xa0
[  588.674268][ T8072]  ? __rtnl_newlink+0x1930/0x1930
[  588.679390][ T8072]  rtnetlink_rcv_msg+0x3c7/0xe00
[  588.684374][ T8072]  ? rtnl_fill_vf+0x4a0/0x4a0
[  588.689152][ T8072]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  588.695236][ T8072]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  588.701361][ T8072]  netlink_rcv_skb+0x16b/0x440
[  588.706668][ T8072]  ? rtnl_fill_vf+0x4a0/0x4a0
[  588.711445][ T8072]  ? netlink_ack+0x1380/0x1380
[  588.716236][ T8072]  ? lock_sync+0x190/0x190
[  588.720768][ T8072]  ? netlink_deliver_tap+0x1a0/0xd00
[  588.726240][ T8072]  ? _copy_from_iter+0x2c1/0x10f0
[  588.731745][ T8072]  netlink_unicast+0x53b/0x810
[  588.737251][ T8072]  ? netlink_attachskb+0x880/0x880
[  588.742676][ T8072]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  588.748714][ T8072]  ? __phys_addr_symbol+0x30/0x70
[  588.754232][ T8072]  ? __check_object_size+0x323/0x730
[  588.759882][ T8072]  netlink_sendmsg+0x93c/0xe40
[  588.764882][ T8072]  ? netlink_unicast+0x810/0x810
[  588.770445][ T8072]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  588.775836][ T8072]  ? netlink_unicast+0x810/0x810
[  588.780811][ T8072]  __sock_sendmsg+0xd5/0x180
[  588.785762][ T8072]  ____sys_sendmsg+0x6ac/0x940
[  588.790799][ T8072]  ? copy_msghdr_from_user+0x10b/0x160
[  588.796617][ T8072]  ? kernel_sendmsg+0x50/0x50
[  588.801485][ T8072]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  588.807656][ T8072]  ___sys_sendmsg+0x135/0x1d0
[  588.813389][ T8072]  ? do_recvmmsg+0x740/0x740
[  588.818466][ T8072]  ? find_held_lock+0x2d/0x110
[  588.824002][ T8072]  ? preempt_count_sub+0x160/0x160
[  588.829546][ T8072]  ? __fget_light+0x1fc/0x260
[  588.834960][ T8072]  __sys_sendmsg+0x117/0x1e0
[  588.839602][ T8072]  ? __sys_sendmsg_sock+0x30/0x30
[  588.845188][ T8072]  ? syscall_enter_from_user_mode+0x7f/0x120
[  588.851278][ T8072]  do_syscall_64+0x40/0x110
[  588.855892][ T8072]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  588.862013][ T8072] RIP: 0033:0x7fb700fd30b9
[  588.866716][ T8072] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  588.887214][ T8072] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  588.895809][ T8072] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  588.903787][ T8072] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  588.911952][ T8072] RBP: 000000000008f6a4 R08: 0000000000000000 R09: 0000000000000006
[  588.920146][ T8072] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  588.928164][ T8072] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  588.936454][ T8072]  </TASK>
[  588.940144][ T8072] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  588.986683][ T8072] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  588.995911][ T8072] CPU: 1 PID: 8072 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  589.006253][ T8072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  589.016585][ T8072] Call Trace:
[  589.019957][ T8072]  <TASK>
[  589.023001][ T8072]  dump_stack_lvl+0x125/0x1b0
[  589.028090][ T8072]  sysfs_warn_dup+0x7f/0xa0
[  589.032617][ T8072]  sysfs_create_dir_ns+0x249/0x2b0
[  589.038373][ T8072]  ? sysfs_create_mount_point+0xb0/0xb0
[  589.044207][ T8072]  ? spin_bug+0x1d0/0x1d0
[  589.048548][ T8072]  ? net_namespace+0x12/0x40
[  589.053239][ T8072]  ? device_namespace+0x8d/0xc0
[  589.058105][ T8072]  kobject_add_internal+0x2c8/0x970
[  589.063326][ T8072]  kobject_add+0x16f/0x240
[  589.068023][ T8072]  ? kset_create_and_add+0x190/0x190
[  589.073432][ T8072]  ? do_raw_spin_unlock+0x173/0x230
[  589.078990][ T8072]  ? kobject_put+0xbe/0x440
[  589.083514][ T8072]  ? device_add+0xc35/0x1aa0
[  589.088231][ T8072]  device_add+0x289/0x1aa0
[  589.093018][ T8072]  ? device_initialize+0x510/0x510
[  589.098240][ T8072]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  589.105207][ T8072]  ? __init_waitqueue_head+0xca/0x150
[  589.110599][ T8072]  netdev_register_kobject+0x183/0x3f0
[  589.116076][ T8072]  register_netdevice+0xbe6/0x14b0
[  589.121567][ T8072]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  589.127831][ T8072]  ? validate_linkmsg+0x6fc/0x9c0
[  589.132962][ T8072]  br_dev_newlink+0x27/0x110
[  589.137647][ T8072]  ? br_changelink+0x1760/0x1760
[  589.142682][ T8072]  __rtnl_newlink+0x1173/0x1930
[  589.147584][ T8072]  ? rtnl_link_unregister+0x260/0x260
[  589.153028][ T8072]  rtnl_newlink+0x67/0xa0
[  589.157477][ T8072]  ? __rtnl_newlink+0x1930/0x1930
[  589.162700][ T8072]  rtnetlink_rcv_msg+0x3c7/0xe00
[  589.167772][ T8072]  ? rtnl_fill_vf+0x4a0/0x4a0
[  589.172824][ T8072]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  589.179115][ T8072]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  589.185310][ T8072]  netlink_rcv_skb+0x16b/0x440
[  589.190138][ T8072]  ? rtnl_fill_vf+0x4a0/0x4a0
[  589.194837][ T8072]  ? netlink_ack+0x1380/0x1380
[  589.199972][ T8072]  ? lock_sync+0x190/0x190
[  589.204533][ T8072]  ? netlink_deliver_tap+0x1a0/0xd00
[  589.210454][ T8072]  ? _copy_from_iter+0x2c1/0x10f0
[  589.215764][ T8072]  netlink_unicast+0x53b/0x810
[  589.220559][ T8072]  ? netlink_attachskb+0x880/0x880
[  589.225869][ T8072]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  589.232045][ T8072]  ? __phys_addr_symbol+0x30/0x70
[  589.237867][ T8072]  ? __check_object_size+0x323/0x730
[  589.243166][ T8072]  netlink_sendmsg+0x93c/0xe40
[  589.248122][ T8072]  ? netlink_unicast+0x810/0x810
[  589.253248][ T8072]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  589.258717][ T8072]  ? netlink_unicast+0x810/0x810
[  589.263754][ T8072]  __sock_sendmsg+0xd5/0x180
[  589.268361][ T8072]  ____sys_sendmsg+0x6ac/0x940
[  589.273157][ T8072]  ? copy_msghdr_from_user+0x10b/0x160
[  589.279070][ T8072]  ? kernel_sendmsg+0x50/0x50
[  589.283763][ T8072]  ? hlock_class+0x4e/0x130
[  589.288705][ T8072]  ? __lock_acquire+0x14e0/0x3b10
[  589.294368][ T8072]  ___sys_sendmsg+0x135/0x1d0
[  589.299323][ T8072]  ? do_recvmmsg+0x740/0x740
[  589.304037][ T8072]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  589.310215][ T8072]  ? find_held_lock+0x2d/0x110
[  589.315490][ T8072]  ? __fget_light+0x1fc/0x260
[  589.320339][ T8072]  __sys_sendmsg+0x117/0x1e0
[  589.325412][ T8072]  ? __sys_sendmsg_sock+0x30/0x30
[  589.331270][ T8072]  ? __do_sys_rseq+0x750/0x750
[  589.336404][ T8072]  ? syscall_enter_from_user_mode+0x7f/0x120
[  589.342401][ T8072]  do_syscall_64+0x40/0x110
[  589.347107][ T8072]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  589.353239][ T8072] RIP: 0033:0x7fb700fd30b9
[  589.357860][ T8072] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  589.377842][ T8072] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  589.387297][ T8072] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  589.395553][ T8072] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  589.404067][ T8072] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  589.412298][ T8072] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  589.420624][ T8072] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  589.428975][ T8072]  </TASK>
[  589.433921][ T8072] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  589.492103][ T8073] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  589.504030][ T8073] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  589.514684][ T8073] CPU: 1 PID: 8073 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  589.525394][ T8073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  589.535988][ T8073] Call Trace:
[  589.539378][ T8073]  <TASK>
[  589.542592][ T8073]  dump_stack_lvl+0x125/0x1b0
[  589.547569][ T8073]  sysfs_warn_dup+0x7f/0xa0
[  589.552185][ T8073]  sysfs_create_dir_ns+0x249/0x2b0
[  589.557503][ T8073]  ? sysfs_create_mount_point+0xb0/0xb0
[  589.563171][ T8073]  ? spin_bug+0x1d0/0x1d0
[  589.567825][ T8073]  ? net_namespace+0x12/0x40
[  589.572475][ T8073]  ? device_namespace+0x8d/0xc0
[  589.577356][ T8073]  kobject_add_internal+0x2c8/0x970
[  589.582604][ T8073]  kobject_add+0x16f/0x240
[  589.587389][ T8073]  ? kset_create_and_add+0x190/0x190
[  589.593443][ T8073]  ? do_raw_spin_unlock+0x173/0x230
[  589.598893][ T8073]  ? kobject_put+0xbe/0x440
[  589.603546][ T8073]  ? device_add+0xc35/0x1aa0
[  589.608612][ T8073]  device_add+0x289/0x1aa0
[  589.613043][ T8073]  ? device_initialize+0x510/0x510
[  589.618262][ T8073]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  589.625136][ T8073]  ? __init_waitqueue_head+0xca/0x150
[  589.630531][ T8073]  netdev_register_kobject+0x183/0x3f0
[  589.636214][ T8073]  register_netdevice+0xbe6/0x14b0
[  589.641705][ T8073]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  589.648012][ T8073]  ? validate_linkmsg+0x6fc/0x9c0
[  589.653052][ T8073]  br_dev_newlink+0x27/0x110
[  589.657653][ T8073]  ? br_changelink+0x1760/0x1760
[  589.662685][ T8073]  __rtnl_newlink+0x1173/0x1930
[  589.667684][ T8073]  ? rtnl_link_unregister+0x260/0x260
[  589.674086][ T8073]  rtnl_newlink+0x67/0xa0
[  589.678528][ T8073]  ? __rtnl_newlink+0x1930/0x1930
[  589.683740][ T8073]  rtnetlink_rcv_msg+0x3c7/0xe00
[  589.688784][ T8073]  ? rtnl_fill_vf+0x4a0/0x4a0
[  589.693758][ T8073]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  589.700028][ T8073]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  589.706224][ T8073]  netlink_rcv_skb+0x16b/0x440
[  589.711116][ T8073]  ? rtnl_fill_vf+0x4a0/0x4a0
[  589.716102][ T8073]  ? netlink_ack+0x1380/0x1380
[  589.721061][ T8073]  ? lock_sync+0x190/0x190
[  589.725506][ T8073]  ? netlink_deliver_tap+0x1a0/0xd00
[  589.730801][ T8073]  ? _copy_from_iter+0x2c1/0x10f0
[  589.736040][ T8073]  netlink_unicast+0x53b/0x810
[  589.741293][ T8073]  ? netlink_attachskb+0x880/0x880
[  589.746702][ T8073]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  589.753765][ T8073]  ? __phys_addr_symbol+0x30/0x70
[  589.759426][ T8073]  ? __check_object_size+0x323/0x730
[  589.765393][ T8073]  netlink_sendmsg+0x93c/0xe40
[  589.770941][ T8073]  ? netlink_unicast+0x810/0x810
[  589.776087][ T8073]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  589.782025][ T8073]  ? netlink_unicast+0x810/0x810
[  589.787244][ T8073]  __sock_sendmsg+0xd5/0x180
[  589.792220][ T8073]  ____sys_sendmsg+0x6ac/0x940
[  589.797186][ T8073]  ? copy_msghdr_from_user+0x10b/0x160
[  589.805534][ T8073]  ? kernel_sendmsg+0x50/0x50
[  589.811025][ T8073]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  589.817962][ T8073]  ___sys_sendmsg+0x135/0x1d0
[  589.823233][ T8073]  ? do_recvmmsg+0x740/0x740
[  589.828765][ T8073]  ? find_held_lock+0x2d/0x110
[  589.833576][ T8073]  ? preempt_count_sub+0x160/0x160
[  589.838945][ T8073]  ? __fget_light+0x1fc/0x260
[  589.843779][ T8073]  __sys_sendmsg+0x117/0x1e0
[  589.848401][ T8073]  ? __sys_sendmsg_sock+0x30/0x30
[  589.853744][ T8073]  ? syscall_enter_from_user_mode+0x7f/0x120
[  589.859956][ T8073]  do_syscall_64+0x40/0x110
[  589.864584][ T8073]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  589.870674][ T8073] RIP: 0033:0x7fb700fd30b9
[  589.875189][ T8073] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  589.895882][ T8073] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  589.904505][ T8073] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  589.912748][ T8073] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  589.921113][ T8073] RBP: 000000000008fa9e R08: 0000000000000000 R09: 0000000000000006
[  589.929356][ T8073] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  589.937623][ T8073] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  589.945982][ T8073]  </TASK>
[  589.950325][ T8073] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  590.026075][ T8073] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  590.035382][ T8073] CPU: 1 PID: 8073 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  590.046107][ T8073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  590.056436][ T8073] Call Trace:
[  590.059813][ T8073]  <TASK>
[  590.062838][ T8073]  dump_stack_lvl+0x125/0x1b0
[  590.067625][ T8073]  sysfs_warn_dup+0x7f/0xa0
[  590.072156][ T8073]  sysfs_create_dir_ns+0x249/0x2b0
[  590.077272][ T8073]  ? sysfs_create_mount_point+0xb0/0xb0
[  590.083032][ T8073]  ? spin_bug+0x1d0/0x1d0
[  590.087448][ T8073]  ? net_namespace+0x12/0x40
[  590.092047][ T8073]  ? device_namespace+0x8d/0xc0
[  590.097078][ T8073]  kobject_add_internal+0x2c8/0x970
[  590.102409][ T8073]  kobject_add+0x16f/0x240
[  590.106861][ T8073]  ? kset_create_and_add+0x190/0x190
[  590.112599][ T8073]  ? do_raw_spin_unlock+0x173/0x230
[  590.118154][ T8073]  ? kobject_put+0xbe/0x440
[  590.122936][ T8073]  ? device_add+0xc35/0x1aa0
[  590.127701][ T8073]  device_add+0x289/0x1aa0
[  590.132127][ T8073]  ? device_initialize+0x510/0x510
[  590.137258][ T8073]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  590.144222][ T8073]  ? __init_waitqueue_head+0xca/0x150
[  590.149620][ T8073]  netdev_register_kobject+0x183/0x3f0
[  590.155220][ T8073]  register_netdevice+0xbe6/0x14b0
[  590.160446][ T8073]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  590.166534][ T8073]  ? validate_linkmsg+0x6fc/0x9c0
[  590.172096][ T8073]  br_dev_newlink+0x27/0x110
[  590.176871][ T8073]  ? br_changelink+0x1760/0x1760
[  590.182263][ T8073]  __rtnl_newlink+0x1173/0x1930
[  590.187309][ T8073]  ? rtnl_link_unregister+0x260/0x260
[  590.192736][ T8073]  rtnl_newlink+0x67/0xa0
[  590.197140][ T8073]  ? __rtnl_newlink+0x1930/0x1930
[  590.202408][ T8073]  rtnetlink_rcv_msg+0x3c7/0xe00
[  590.207724][ T8073]  ? rtnl_fill_vf+0x4a0/0x4a0
[  590.212547][ T8073]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  590.218996][ T8073]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  590.225293][ T8073]  netlink_rcv_skb+0x16b/0x440
[  590.230157][ T8073]  ? rtnl_fill_vf+0x4a0/0x4a0
[  590.234872][ T8073]  ? netlink_ack+0x1380/0x1380
[  590.239647][ T8073]  ? lock_sync+0x190/0x190
[  590.244301][ T8073]  ? netlink_deliver_tap+0x1a0/0xd00
[  590.249615][ T8073]  ? _copy_from_iter+0x2c1/0x10f0
[  590.254835][ T8073]  netlink_unicast+0x53b/0x810
[  590.259801][ T8073]  ? netlink_attachskb+0x880/0x880
[  590.264930][ T8073]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  590.270828][ T8073]  ? __phys_addr_symbol+0x30/0x70
[  590.275885][ T8073]  ? __check_object_size+0x323/0x730
[  590.281275][ T8073]  netlink_sendmsg+0x93c/0xe40
[  590.286071][ T8073]  ? netlink_unicast+0x810/0x810
[  590.291472][ T8073]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  590.296951][ T8073]  ? netlink_unicast+0x810/0x810
[  590.302189][ T8073]  __sock_sendmsg+0xd5/0x180
[  590.307107][ T8073]  ____sys_sendmsg+0x6ac/0x940
[  590.312148][ T8073]  ? copy_msghdr_from_user+0x10b/0x160
[  590.317883][ T8073]  ? kernel_sendmsg+0x50/0x50
[  590.322603][ T8073]  ? hlock_class+0x4e/0x130
[  590.327467][ T8073]  ? __lock_acquire+0x14e0/0x3b10
[  590.332709][ T8073]  ___sys_sendmsg+0x135/0x1d0
[  590.338044][ T8073]  ? do_recvmmsg+0x740/0x740
[  590.342653][ T8073]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  590.348754][ T8073]  ? find_held_lock+0x2d/0x110
[  590.353555][ T8073]  ? __fget_light+0x1fc/0x260
[  590.358322][ T8073]  __sys_sendmsg+0x117/0x1e0
[  590.363279][ T8073]  ? __sys_sendmsg_sock+0x30/0x30
[  590.368402][ T8073]  ? __do_sys_rseq+0x750/0x750
[  590.373464][ T8073]  ? syscall_enter_from_user_mode+0x7f/0x120
[  590.379563][ T8073]  do_syscall_64+0x40/0x110
[  590.384170][ T8073]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  590.390162][ T8073] RIP: 0033:0x7fb700fd30b9
[  590.394587][ T8073] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  590.414727][ T8073] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  590.423426][ T8073] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  590.431414][ T8073] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  590.439540][ T8073] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  590.447861][ T8073] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  590.456203][ T8073] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  590.464411][ T8073]  </TASK>
[  590.468578][ T8073] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  590.541833][ T8074] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  590.553448][ T8074] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  590.562824][ T8074] CPU: 0 PID: 8074 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  590.573181][ T8074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  590.583418][ T8074] Call Trace:
[  590.587017][ T8074]  <TASK>
[  590.589955][ T8074]  dump_stack_lvl+0x125/0x1b0
[  590.594991][ T8074]  sysfs_warn_dup+0x7f/0xa0
[  590.599665][ T8074]  sysfs_create_dir_ns+0x249/0x2b0
[  590.604981][ T8074]  ? sysfs_create_mount_point+0xb0/0xb0
[  590.610799][ T8074]  ? spin_bug+0x1d0/0x1d0
[  590.615130][ T8074]  ? net_namespace+0x12/0x40
[  590.619897][ T8074]  ? device_namespace+0x8d/0xc0
[  590.625027][ T8074]  kobject_add_internal+0x2c8/0x970
[  590.630680][ T8074]  kobject_add+0x16f/0x240
[  590.635189][ T8074]  ? kset_create_and_add+0x190/0x190
[  590.640570][ T8074]  ? do_raw_spin_unlock+0x173/0x230
[  590.645946][ T8074]  ? kobject_put+0xbe/0x440
[  590.650675][ T8074]  ? device_add+0xc35/0x1aa0
[  590.655281][ T8074]  device_add+0x289/0x1aa0
[  590.659705][ T8074]  ? device_initialize+0x510/0x510
[  590.664846][ T8074]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  590.671711][ T8074]  ? __init_waitqueue_head+0xca/0x150
[  590.677191][ T8074]  netdev_register_kobject+0x183/0x3f0
[  590.682758][ T8074]  register_netdevice+0xbe6/0x14b0
[  590.687981][ T8074]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  590.693980][ T8074]  ? validate_linkmsg+0x6fc/0x9c0
[  590.699103][ T8074]  br_dev_newlink+0x27/0x110
[  590.703879][ T8074]  ? br_changelink+0x1760/0x1760
[  590.708832][ T8074]  __rtnl_newlink+0x1173/0x1930
[  590.713901][ T8074]  ? rtnl_link_unregister+0x260/0x260
[  590.719423][ T8074]  rtnl_newlink+0x67/0xa0
[  590.723912][ T8074]  ? __rtnl_newlink+0x1930/0x1930
[  590.728981][ T8074]  rtnetlink_rcv_msg+0x3c7/0xe00
[  590.733945][ T8074]  ? rtnl_fill_vf+0x4a0/0x4a0
[  590.738744][ T8074]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  590.744917][ T8074]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  590.751185][ T8074]  netlink_rcv_skb+0x16b/0x440
[  590.756230][ T8074]  ? rtnl_fill_vf+0x4a0/0x4a0
[  590.760918][ T8074]  ? netlink_ack+0x1380/0x1380
[  590.765887][ T8074]  ? lock_sync+0x190/0x190
[  590.770423][ T8074]  ? netlink_deliver_tap+0x1a0/0xd00
[  590.775795][ T8074]  ? _copy_from_iter+0x2c1/0x10f0
[  590.780843][ T8074]  netlink_unicast+0x53b/0x810
[  590.785844][ T8074]  ? netlink_attachskb+0x880/0x880
[  590.791771][ T8074]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  590.797849][ T8074]  ? __phys_addr_symbol+0x30/0x70
[  590.802928][ T8074]  ? __check_object_size+0x323/0x730
[  590.808395][ T8074]  netlink_sendmsg+0x93c/0xe40
[  590.813354][ T8074]  ? netlink_unicast+0x810/0x810
[  590.818484][ T8074]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  590.823793][ T8074]  ? netlink_unicast+0x810/0x810
[  590.828828][ T8074]  __sock_sendmsg+0xd5/0x180
[  590.833517][ T8074]  ____sys_sendmsg+0x6ac/0x940
[  590.838547][ T8074]  ? copy_msghdr_from_user+0x10b/0x160
[  590.844279][ T8074]  ? kernel_sendmsg+0x50/0x50
[  590.850195][ T8074]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  590.856291][ T8074]  ___sys_sendmsg+0x135/0x1d0
[  590.860978][ T8074]  ? do_recvmmsg+0x740/0x740
[  590.865773][ T8074]  ? find_held_lock+0x2d/0x110
[  590.870555][ T8074]  ? preempt_count_sub+0x160/0x160
[  590.875859][ T8074]  ? __fget_light+0x1fc/0x260
[  590.880716][ T8074]  __sys_sendmsg+0x117/0x1e0
[  590.885317][ T8074]  ? __sys_sendmsg_sock+0x30/0x30
[  590.890462][ T8074]  ? syscall_enter_from_user_mode+0x7f/0x120
[  590.896463][ T8074]  do_syscall_64+0x40/0x110
[  590.901843][ T8074]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  590.908120][ T8074] RIP: 0033:0x7fb700fd30b9
[  590.913339][ T8074] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  590.933231][ T8074] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  590.941839][ T8074] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  590.949899][ T8074] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  590.958303][ T8074] RBP: 000000000008fe87 R08: 0000000000000000 R09: 0000000000000006
[  590.966713][ T8074] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  590.975493][ T8074] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  590.983485][ T8074]  </TASK>
[  590.987639][ T8074] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  591.045078][ T8074] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  591.055045][ T8074] CPU: 0 PID: 8074 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  591.065227][ T8074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  591.075723][ T8074] Call Trace:
[  591.079032][ T8074]  <TASK>
[  591.081955][ T8074]  dump_stack_lvl+0x125/0x1b0
[  591.086647][ T8074]  sysfs_warn_dup+0x7f/0xa0
[  591.091185][ T8074]  sysfs_create_dir_ns+0x249/0x2b0
[  591.096468][ T8074]  ? sysfs_create_mount_point+0xb0/0xb0
[  591.102323][ T8074]  ? spin_bug+0x1d0/0x1d0
[  591.106685][ T8074]  ? net_namespace+0x12/0x40
[  591.111384][ T8074]  ? device_namespace+0x8d/0xc0
[  591.116342][ T8074]  kobject_add_internal+0x2c8/0x970
[  591.121643][ T8074]  kobject_add+0x16f/0x240
[  591.126076][ T8074]  ? kset_create_and_add+0x190/0x190
[  591.131368][ T8074]  ? do_raw_spin_unlock+0x173/0x230
[  591.136827][ T8074]  ? kobject_put+0xbe/0x440
[  591.141430][ T8074]  ? device_add+0xc35/0x1aa0
[  591.146044][ T8074]  device_add+0x289/0x1aa0
[  591.150465][ T8074]  ? device_initialize+0x510/0x510
[  591.155589][ T8074]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  591.162733][ T8074]  ? __init_waitqueue_head+0xca/0x150
[  591.168597][ T8074]  netdev_register_kobject+0x183/0x3f0
[  591.174175][ T8074]  register_netdevice+0xbe6/0x14b0
[  591.179576][ T8074]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  591.186396][ T8074]  ? validate_linkmsg+0x6fc/0x9c0
[  591.191433][ T8074]  br_dev_newlink+0x27/0x110
[  591.196211][ T8074]  ? br_changelink+0x1760/0x1760
[  591.201607][ T8074]  __rtnl_newlink+0x1173/0x1930
[  591.206803][ T8074]  ? rtnl_link_unregister+0x260/0x260
[  591.212399][ T8074]  rtnl_newlink+0x67/0xa0
[  591.217091][ T8074]  ? __rtnl_newlink+0x1930/0x1930
[  591.222305][ T8074]  rtnetlink_rcv_msg+0x3c7/0xe00
[  591.227457][ T8074]  ? rtnl_fill_vf+0x4a0/0x4a0
[  591.232232][ T8074]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  591.238313][ T8074]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  591.244316][ T8074]  netlink_rcv_skb+0x16b/0x440
[  591.249177][ T8074]  ? rtnl_fill_vf+0x4a0/0x4a0
[  591.254035][ T8074]  ? netlink_ack+0x1380/0x1380
[  591.259614][ T8074]  ? lock_sync+0x190/0x190
[  591.264191][ T8074]  ? netlink_deliver_tap+0x1a0/0xd00
[  591.269505][ T8074]  ? _copy_from_iter+0x2c1/0x10f0
[  591.274821][ T8074]  netlink_unicast+0x53b/0x810
[  591.279630][ T8074]  ? netlink_attachskb+0x880/0x880
[  591.284787][ T8074]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  591.290799][ T8074]  ? __phys_addr_symbol+0x30/0x70
[  591.295937][ T8074]  ? __check_object_size+0x323/0x730
[  591.301352][ T8074]  netlink_sendmsg+0x93c/0xe40
[  591.306141][ T8074]  ? netlink_unicast+0x810/0x810
[  591.311120][ T8074]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  591.316592][ T8074]  ? netlink_unicast+0x810/0x810
[  591.321719][ T8074]  __sock_sendmsg+0xd5/0x180
[  591.326499][ T8074]  ____sys_sendmsg+0x6ac/0x940
[  591.331448][ T8074]  ? copy_msghdr_from_user+0x10b/0x160
[  591.337038][ T8074]  ? kernel_sendmsg+0x50/0x50
[  591.341911][ T8074]  ___sys_sendmsg+0x135/0x1d0
[  591.346778][ T8074]  ? do_recvmmsg+0x740/0x740
[  591.351549][ T8074]  ? find_held_lock+0x2d/0x110
[  591.356431][ T8074]  ? preempt_count_sub+0x160/0x160
[  591.361913][ T8074]  ? __fget_light+0x1fc/0x260
[  591.366599][ T8074]  __sys_sendmsg+0x117/0x1e0
[  591.371297][ T8074]  ? __sys_sendmsg_sock+0x30/0x30
[  591.377042][ T8074]  ? syscall_enter_from_user_mode+0x7f/0x120
[  591.383309][ T8074]  do_syscall_64+0x40/0x110
[  591.387861][ T8074]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  591.393764][ T8074] RIP: 0033:0x7fb700fd30b9
[  591.398306][ T8074] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  591.418967][ T8074] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  591.427567][ T8074] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  591.435981][ T8074] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  591.443958][ T8074] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  591.452019][ T8074] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  591.460291][ T8074] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  591.468454][ T8074]  </TASK>
[  591.472208][ T8074] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  591.541103][ T8075] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  591.551820][ T8075] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  591.561739][ T8075] CPU: 0 PID: 8075 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  591.572047][ T8075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  591.582637][ T8075] Call Trace:
[  591.586297][ T8075]  <TASK>
[  591.589665][ T8075]  dump_stack_lvl+0x125/0x1b0
[  591.594791][ T8075]  sysfs_warn_dup+0x7f/0xa0
[  591.599398][ T8075]  sysfs_create_dir_ns+0x249/0x2b0
[  591.604521][ T8075]  ? sysfs_create_mount_point+0xb0/0xb0
[  591.610246][ T8075]  ? spin_bug+0x1d0/0x1d0
[  591.614577][ T8075]  ? net_namespace+0x12/0x40
[  591.619268][ T8075]  ? device_namespace+0x8d/0xc0
[  591.624146][ T8075]  kobject_add_internal+0x2c8/0x970
[  591.629534][ T8075]  kobject_add+0x16f/0x240
[  591.634344][ T8075]  ? kset_create_and_add+0x190/0x190
[  591.639746][ T8075]  ? do_raw_spin_unlock+0x173/0x230
[  591.645139][ T8075]  ? kobject_put+0xbe/0x440
[  591.650641][ T8075]  ? device_add+0xc35/0x1aa0
[  591.655423][ T8075]  device_add+0x289/0x1aa0
[  591.660046][ T8075]  ? device_initialize+0x510/0x510
[  591.665357][ T8075]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  591.673217][ T8075]  ? __init_waitqueue_head+0xca/0x150
[  591.679001][ T8075]  netdev_register_kobject+0x183/0x3f0
[  591.684749][ T8075]  register_netdevice+0xbe6/0x14b0
[  591.689972][ T8075]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  591.696249][ T8075]  ? validate_linkmsg+0x6fc/0x9c0
[  591.701362][ T8075]  br_dev_newlink+0x27/0x110
[  591.706051][ T8075]  ? br_changelink+0x1760/0x1760
[  591.711165][ T8075]  __rtnl_newlink+0x1173/0x1930
[  591.716295][ T8075]  ? rtnl_link_unregister+0x260/0x260
[  591.721873][ T8075]  rtnl_newlink+0x67/0xa0
[  591.726212][ T8075]  ? __rtnl_newlink+0x1930/0x1930
[  591.731567][ T8075]  rtnetlink_rcv_msg+0x3c7/0xe00
[  591.736711][ T8075]  ? rtnl_fill_vf+0x4a0/0x4a0
[  591.741428][ T8075]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  591.747532][ T8075]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  591.754023][ T8075]  netlink_rcv_skb+0x16b/0x440
[  591.759179][ T8075]  ? rtnl_fill_vf+0x4a0/0x4a0
[  591.764076][ T8075]  ? netlink_ack+0x1380/0x1380
[  591.769031][ T8075]  ? lock_sync+0x190/0x190
[  591.773849][ T8075]  ? netlink_deliver_tap+0x1a0/0xd00
[  591.779404][ T8075]  ? _copy_from_iter+0x2c1/0x10f0
[  591.784462][ T8075]  netlink_unicast+0x53b/0x810
[  591.789252][ T8075]  ? netlink_attachskb+0x880/0x880
[  591.794554][ T8075]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  591.800725][ T8075]  ? __phys_addr_symbol+0x30/0x70
[  591.806016][ T8075]  ? __check_object_size+0x323/0x730
[  591.811394][ T8075]  netlink_sendmsg+0x93c/0xe40
[  591.816435][ T8075]  ? netlink_unicast+0x810/0x810
[  591.821669][ T8075]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  591.827049][ T8075]  ? netlink_unicast+0x810/0x810
[  591.832087][ T8075]  __sock_sendmsg+0xd5/0x180
[  591.836694][ T8075]  ____sys_sendmsg+0x6ac/0x940
[  591.841769][ T8075]  ? copy_msghdr_from_user+0x10b/0x160
[  591.847239][ T8075]  ? kernel_sendmsg+0x50/0x50
[  591.852182][ T8075]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  591.858187][ T8075]  ___sys_sendmsg+0x135/0x1d0
[  591.862877][ T8075]  ? do_recvmmsg+0x740/0x740
[  591.867783][ T8075]  ? find_held_lock+0x2d/0x110
[  591.872660][ T8075]  ? preempt_count_sub+0x160/0x160
[  591.877963][ T8075]  ? __fget_light+0x1fc/0x260
[  591.882816][ T8075]  __sys_sendmsg+0x117/0x1e0
[  591.887512][ T8075]  ? __sys_sendmsg_sock+0x30/0x30
[  591.892547][ T8075]  ? xfd_validate_state+0x5d/0x180
[  591.897952][ T8075]  ? syscall_enter_from_user_mode+0x7f/0x120
[  591.904220][ T8075]  do_syscall_64+0x40/0x110
[  591.909190][ T8075]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  591.915384][ T8075] RIP: 0033:0x7fb700fd30b9
[  591.919943][ T8075] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  591.941422][ T8075] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  591.950726][ T8075] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  591.958901][ T8075] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  591.966876][ T8075] RBP: 00000000000902a1 R08: 0000000000000000 R09: 0000000000000006
[  591.975238][ T8075] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  591.983313][ T8075] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  591.991495][ T8075]  </TASK>
[  591.997065][ T8075] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  592.057320][ T8075] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  592.066704][ T8075] CPU: 0 PID: 8075 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  592.077125][ T8075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  592.087704][ T8075] Call Trace:
[  592.090978][ T8075]  <TASK>
[  592.093904][ T8075]  dump_stack_lvl+0x125/0x1b0
[  592.098599][ T8075]  sysfs_warn_dup+0x7f/0xa0
[  592.103125][ T8075]  sysfs_create_dir_ns+0x249/0x2b0
[  592.108365][ T8075]  ? sysfs_create_mount_point+0xb0/0xb0
[  592.113962][ T8075]  ? spin_bug+0x1d0/0x1d0
[  592.118327][ T8075]  ? net_namespace+0x12/0x40
[  592.122932][ T8075]  ? device_namespace+0x8d/0xc0
[  592.127841][ T8075]  kobject_add_internal+0x2c8/0x970
[  592.133576][ T8075]  kobject_add+0x16f/0x240
[  592.137998][ T8075]  ? kset_create_and_add+0x190/0x190
[  592.143411][ T8075]  ? do_raw_spin_unlock+0x173/0x230
[  592.148612][ T8075]  ? kobject_put+0xbe/0x440
[  592.153226][ T8075]  ? device_add+0xc35/0x1aa0
[  592.158389][ T8075]  device_add+0x289/0x1aa0
[  592.162998][ T8075]  ? device_initialize+0x510/0x510
[  592.168834][ T8075]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  592.176144][ T8075]  ? __init_waitqueue_head+0xca/0x150
[  592.181556][ T8075]  netdev_register_kobject+0x183/0x3f0
[  592.187146][ T8075]  register_netdevice+0xbe6/0x14b0
[  592.192366][ T8075]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  592.198405][ T8075]  ? validate_linkmsg+0x6fc/0x9c0
[  592.203618][ T8075]  br_dev_newlink+0x27/0x110
[  592.208398][ T8075]  ? br_changelink+0x1760/0x1760
[  592.213534][ T8075]  __rtnl_newlink+0x1173/0x1930
[  592.218488][ T8075]  ? rtnl_link_unregister+0x260/0x260
[  592.223986][ T8075]  rtnl_newlink+0x67/0xa0
[  592.228526][ T8075]  ? __rtnl_newlink+0x1930/0x1930
[  592.233735][ T8075]  rtnetlink_rcv_msg+0x3c7/0xe00
[  592.238684][ T8075]  ? rtnl_fill_vf+0x4a0/0x4a0
[  592.243454][ T8075]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  592.249624][ T8075]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  592.255884][ T8075]  netlink_rcv_skb+0x16b/0x440
[  592.260745][ T8075]  ? rtnl_fill_vf+0x4a0/0x4a0
[  592.265629][ T8075]  ? netlink_ack+0x1380/0x1380
[  592.270661][ T8075]  ? lock_sync+0x190/0x190
[  592.275187][ T8075]  ? netlink_deliver_tap+0x1a0/0xd00
[  592.280653][ T8075]  ? _copy_from_iter+0x2c1/0x10f0
[  592.286047][ T8075]  netlink_unicast+0x53b/0x810
[  592.290979][ T8075]  ? netlink_attachskb+0x880/0x880
[  592.296190][ T8075]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  592.302386][ T8075]  ? __phys_addr_symbol+0x30/0x70
[  592.307417][ T8075]  ? __check_object_size+0x323/0x730
[  592.313234][ T8075]  netlink_sendmsg+0x93c/0xe40
[  592.318114][ T8075]  ? netlink_unicast+0x810/0x810
[  592.323413][ T8075]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  592.329227][ T8075]  ? netlink_unicast+0x810/0x810
[  592.334174][ T8075]  __sock_sendmsg+0xd5/0x180
[  592.338859][ T8075]  ____sys_sendmsg+0x6ac/0x940
[  592.343667][ T8075]  ? copy_msghdr_from_user+0x10b/0x160
[  592.349237][ T8075]  ? kernel_sendmsg+0x50/0x50
[  592.354096][ T8075]  ? hlock_class+0x4e/0x130
[  592.358606][ T8075]  ? __lock_acquire+0x14e0/0x3b10
[  592.363738][ T8075]  ___sys_sendmsg+0x135/0x1d0
[  592.368544][ T8075]  ? do_recvmmsg+0x740/0x740
[  592.373206][ T8075]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  592.379294][ T8075]  ? find_held_lock+0x2d/0x110
[  592.384278][ T8075]  ? __fget_light+0x1fc/0x260
[  592.389243][ T8075]  __sys_sendmsg+0x117/0x1e0
[  592.394016][ T8075]  ? __sys_sendmsg_sock+0x30/0x30
[  592.399043][ T8075]  ? xfd_validate_state+0x5d/0x180
[  592.404452][ T8075]  ? syscall_enter_from_user_mode+0x7f/0x120
[  592.410534][ T8075]  do_syscall_64+0x40/0x110
[  592.415414][ T8075]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  592.421500][ T8075] RIP: 0033:0x7fb700fd30b9
[  592.425944][ T8075] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  592.446512][ T8075] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  592.455623][ T8075] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  592.463858][ T8075] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  592.472003][ T8075] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  592.480060][ T8075] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  592.488224][ T8075] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  592.497438][ T8075]  </TASK>
[  592.502215][ T8075] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  592.561485][ T8076] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  592.571859][ T8076] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  592.581173][ T8076] CPU: 0 PID: 8076 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  592.591348][ T8076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  592.601688][ T8076] Call Trace:
[  592.605227][ T8076]  <TASK>
[  592.608172][ T8076]  dump_stack_lvl+0x125/0x1b0
[  592.613307][ T8076]  sysfs_warn_dup+0x7f/0xa0
[  592.618050][ T8076]  sysfs_create_dir_ns+0x249/0x2b0
[  592.623280][ T8076]  ? sysfs_create_mount_point+0xb0/0xb0
[  592.628953][ T8076]  ? spin_bug+0x1d0/0x1d0
[  592.633292][ T8076]  ? net_namespace+0x12/0x40
[  592.637898][ T8076]  ? device_namespace+0x8d/0xc0
[  592.642769][ T8076]  kobject_add_internal+0x2c8/0x970
[  592.647988][ T8076]  kobject_add+0x16f/0x240
[  592.652511][ T8076]  ? kset_create_and_add+0x190/0x190
[  592.657818][ T8076]  ? do_raw_spin_unlock+0x173/0x230
[  592.663026][ T8076]  ? kobject_put+0xbe/0x440
[  592.667713][ T8076]  ? device_add+0xc35/0x1aa0
[  592.672396][ T8076]  device_add+0x289/0x1aa0
[  592.676907][ T8076]  ? device_initialize+0x510/0x510
[  592.682110][ T8076]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  592.689151][ T8076]  ? __init_waitqueue_head+0xca/0x150
[  592.694853][ T8076]  netdev_register_kobject+0x183/0x3f0
[  592.700800][ T8076]  register_netdevice+0xbe6/0x14b0
[  592.705962][ T8076]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  592.711899][ T8076]  ? validate_linkmsg+0x6fc/0x9c0
[  592.716973][ T8076]  br_dev_newlink+0x27/0x110
[  592.721840][ T8076]  ? br_changelink+0x1760/0x1760
[  592.726794][ T8076]  __rtnl_newlink+0x1173/0x1930
[  592.731782][ T8076]  ? rtnl_link_unregister+0x260/0x260
[  592.737297][ T8076]  rtnl_newlink+0x67/0xa0
[  592.741952][ T8076]  ? __rtnl_newlink+0x1930/0x1930
[  592.747275][ T8076]  rtnetlink_rcv_msg+0x3c7/0xe00
[  592.752783][ T8076]  ? rtnl_fill_vf+0x4a0/0x4a0
[  592.757738][ T8076]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  592.764058][ T8076]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  592.770061][ T8076]  netlink_rcv_skb+0x16b/0x440
[  592.775013][ T8076]  ? rtnl_fill_vf+0x4a0/0x4a0
[  592.779698][ T8076]  ? netlink_ack+0x1380/0x1380
[  592.784647][ T8076]  ? lock_sync+0x190/0x190
[  592.789092][ T8076]  ? netlink_deliver_tap+0x1a0/0xd00
[  592.794735][ T8076]  ? _copy_from_iter+0x2c1/0x10f0
[  592.799958][ T8076]  netlink_unicast+0x53b/0x810
[  592.805014][ T8076]  ? netlink_attachskb+0x880/0x880
[  592.810488][ T8076]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  592.816410][ T8076]  ? __phys_addr_symbol+0x30/0x70
[  592.821975][ T8076]  ? __check_object_size+0x323/0x730
[  592.827654][ T8076]  netlink_sendmsg+0x93c/0xe40
[  592.833061][ T8076]  ? netlink_unicast+0x810/0x810
[  592.838201][ T8076]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  592.843676][ T8076]  ? netlink_unicast+0x810/0x810
[  592.848800][ T8076]  __sock_sendmsg+0xd5/0x180
[  592.853576][ T8076]  ____sys_sendmsg+0x6ac/0x940
[  592.858528][ T8076]  ? copy_msghdr_from_user+0x10b/0x160
[  592.864956][ T8076]  ? kernel_sendmsg+0x50/0x50
[  592.870176][ T8076]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  592.876368][ T8076]  ___sys_sendmsg+0x135/0x1d0
[  592.881166][ T8076]  ? do_recvmmsg+0x740/0x740
[  592.885783][ T8076]  ? find_held_lock+0x2d/0x110
[  592.890998][ T8076]  ? preempt_count_sub+0x160/0x160
[  592.896145][ T8076]  ? __fget_light+0x1fc/0x260
[  592.901010][ T8076]  __sys_sendmsg+0x117/0x1e0
[  592.905814][ T8076]  ? __sys_sendmsg_sock+0x30/0x30
[  592.910865][ T8076]  ? syscall_enter_from_user_mode+0x7f/0x120
[  592.917123][ T8076]  do_syscall_64+0x40/0x110
[  592.921815][ T8076]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  592.927896][ T8076] RIP: 0033:0x7fb700fd30b9
[  592.932406][ T8076] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  592.952569][ T8076] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  592.961862][ T8076] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  592.970748][ T8076] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  592.978735][ T8076] RBP: 0000000000090688 R08: 0000000000000000 R09: 0000000000000006
[  592.986895][ T8076] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  592.994957][ T8076] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  593.005226][ T8076]  </TASK>
[  593.008644][ T8076] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  593.084939][ T8076] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  593.094546][ T8076] CPU: 0 PID: 8076 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  593.104744][ T8076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  593.115042][ T8076] Call Trace:
[  593.118418][ T8076]  <TASK>
[  593.121363][ T8076]  dump_stack_lvl+0x125/0x1b0
[  593.126575][ T8076]  sysfs_warn_dup+0x7f/0xa0
[  593.131260][ T8076]  sysfs_create_dir_ns+0x249/0x2b0
[  593.136467][ T8076]  ? sysfs_create_mount_point+0xb0/0xb0
[  593.142212][ T8076]  ? spin_bug+0x1d0/0x1d0
[  593.146578][ T8076]  ? net_namespace+0x12/0x40
[  593.151271][ T8076]  ? device_namespace+0x8d/0xc0
[  593.156403][ T8076]  kobject_add_internal+0x2c8/0x970
[  593.161698][ T8076]  kobject_add+0x16f/0x240
[  593.166314][ T8076]  ? kset_create_and_add+0x190/0x190
[  593.171625][ T8076]  ? do_raw_spin_unlock+0x173/0x230
[  593.176915][ T8076]  ? kobject_put+0xbe/0x440
[  593.181688][ T8076]  ? device_add+0xc35/0x1aa0
[  593.186468][ T8076]  device_add+0x289/0x1aa0
[  593.190923][ T8076]  ? device_initialize+0x510/0x510
[  593.196137][ T8076]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  593.203099][ T8076]  ? __init_waitqueue_head+0xca/0x150
[  593.208576][ T8076]  netdev_register_kobject+0x183/0x3f0
[  593.214235][ T8076]  register_netdevice+0xbe6/0x14b0
[  593.219560][ T8076]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  593.225860][ T8076]  ? validate_linkmsg+0x6fc/0x9c0
[  593.230998][ T8076]  br_dev_newlink+0x27/0x110
[  593.235738][ T8076]  ? br_changelink+0x1760/0x1760
[  593.240689][ T8076]  __rtnl_newlink+0x1173/0x1930
[  593.245660][ T8076]  ? rtnl_link_unregister+0x260/0x260
[  593.251166][ T8076]  rtnl_newlink+0x67/0xa0
[  593.255650][ T8076]  ? __rtnl_newlink+0x1930/0x1930
[  593.260790][ T8076]  rtnetlink_rcv_msg+0x3c7/0xe00
[  593.265874][ T8076]  ? rtnl_fill_vf+0x4a0/0x4a0
[  593.270573][ T8076]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  593.276837][ T8076]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  593.282894][ T8076]  netlink_rcv_skb+0x16b/0x440
[  593.288011][ T8076]  ? rtnl_fill_vf+0x4a0/0x4a0
[  593.292810][ T8076]  ? netlink_ack+0x1380/0x1380
[  593.297584][ T8076]  ? lock_sync+0x190/0x190
[  593.302111][ T8076]  ? netlink_deliver_tap+0x1a0/0xd00
[  593.307730][ T8076]  ? _copy_from_iter+0x2c1/0x10f0
[  593.313050][ T8076]  netlink_unicast+0x53b/0x810
[  593.317861][ T8076]  ? netlink_attachskb+0x880/0x880
[  593.323075][ T8076]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  593.329159][ T8076]  ? __phys_addr_symbol+0x30/0x70
[  593.334551][ T8076]  ? __check_object_size+0x323/0x730
[  593.340113][ T8076]  netlink_sendmsg+0x93c/0xe40
[  593.345594][ T8076]  ? netlink_unicast+0x810/0x810
[  593.350735][ T8076]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  593.356600][ T8076]  ? netlink_unicast+0x810/0x810
[  593.361571][ T8076]  __sock_sendmsg+0xd5/0x180
[  593.366360][ T8076]  ____sys_sendmsg+0x6ac/0x940
[  593.371417][ T8076]  ? copy_msghdr_from_user+0x10b/0x160
[  593.376988][ T8076]  ? kernel_sendmsg+0x50/0x50
[  593.381802][ T8076]  ___sys_sendmsg+0x135/0x1d0
[  593.386496][ T8076]  ? do_recvmmsg+0x740/0x740
[  593.391103][ T8076]  ? find_held_lock+0x2d/0x110
[  593.395975][ T8076]  ? preempt_count_sub+0x160/0x160
[  593.401104][ T8076]  ? __fget_light+0x1fc/0x260
[  593.406005][ T8076]  __sys_sendmsg+0x117/0x1e0
[  593.410781][ T8076]  ? __sys_sendmsg_sock+0x30/0x30
[  593.415827][ T8076]  ? syscall_enter_from_user_mode+0x7f/0x120
[  593.421830][ T8076]  do_syscall_64+0x40/0x110
[  593.426612][ T8076]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  593.432536][ T8076] RIP: 0033:0x7fb700fd30b9
[  593.437382][ T8076] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  593.457520][ T8076] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  593.466389][ T8076] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  593.474388][ T8076] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  593.482713][ T8076] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  593.491032][ T8076] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  593.499263][ T8076] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  593.507246][ T8076]  </TASK>
[  593.510959][ T8076] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  593.582827][ T8077] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  593.593603][ T8077] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  593.604051][ T8077] CPU: 0 PID: 8077 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  593.614136][ T8077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  593.624376][ T8077] Call Trace:
[  593.627655][ T8077]  <TASK>
[  593.630673][ T8077]  dump_stack_lvl+0x125/0x1b0
[  593.635531][ T8077]  sysfs_warn_dup+0x7f/0xa0
[  593.640379][ T8077]  sysfs_create_dir_ns+0x249/0x2b0
[  593.645503][ T8077]  ? sysfs_create_mount_point+0xb0/0xb0
[  593.651318][ T8077]  ? spin_bug+0x1d0/0x1d0
[  593.655770][ T8077]  ? net_namespace+0x12/0x40
[  593.660456][ T8077]  ? device_namespace+0x8d/0xc0
[  593.665318][ T8077]  kobject_add_internal+0x2c8/0x970
[  593.670518][ T8077]  kobject_add+0x16f/0x240
[  593.674932][ T8077]  ? kset_create_and_add+0x190/0x190
[  593.680215][ T8077]  ? do_raw_spin_unlock+0x173/0x230
[  593.685416][ T8077]  ? kobject_put+0xbe/0x440
[  593.689937][ T8077]  ? device_add+0xc35/0x1aa0
[  593.694713][ T8077]  device_add+0x289/0x1aa0
[  593.699136][ T8077]  ? device_initialize+0x510/0x510
[  593.704416][ T8077]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  593.711447][ T8077]  ? __init_waitqueue_head+0xca/0x150
[  593.717013][ T8077]  netdev_register_kobject+0x183/0x3f0
[  593.722618][ T8077]  register_netdevice+0xbe6/0x14b0
[  593.727865][ T8077]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  593.733776][ T8077]  ? validate_linkmsg+0x6fc/0x9c0
[  593.738842][ T8077]  br_dev_newlink+0x27/0x110
[  593.743629][ T8077]  ? br_changelink+0x1760/0x1760
[  593.748570][ T8077]  __rtnl_newlink+0x1173/0x1930
[  593.753628][ T8077]  ? rtnl_link_unregister+0x260/0x260
[  593.759208][ T8077]  rtnl_newlink+0x67/0xa0
[  593.763547][ T8077]  ? __rtnl_newlink+0x1930/0x1930
[  593.768577][ T8077]  rtnetlink_rcv_msg+0x3c7/0xe00
[  593.773716][ T8077]  ? rtnl_fill_vf+0x4a0/0x4a0
[  593.778528][ T8077]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  593.784997][ T8077]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  593.791519][ T8077]  netlink_rcv_skb+0x16b/0x440
[  593.796393][ T8077]  ? rtnl_fill_vf+0x4a0/0x4a0
[  593.801084][ T8077]  ? netlink_ack+0x1380/0x1380
[  593.805943][ T8077]  ? lock_sync+0x190/0x190
[  593.810672][ T8077]  ? netlink_deliver_tap+0x1a0/0xd00
[  593.816043][ T8077]  ? _copy_from_iter+0x2c1/0x10f0
[  593.821430][ T8077]  netlink_unicast+0x53b/0x810
[  593.826307][ T8077]  ? netlink_attachskb+0x880/0x880
[  593.831791][ T8077]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  593.837977][ T8077]  ? __phys_addr_symbol+0x30/0x70
[  593.843193][ T8077]  ? __check_object_size+0x323/0x730
[  593.848663][ T8077]  netlink_sendmsg+0x93c/0xe40
[  593.853898][ T8077]  ? netlink_unicast+0x810/0x810
[  593.858837][ T8077]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  593.864383][ T8077]  ? netlink_unicast+0x810/0x810
[  593.869505][ T8077]  __sock_sendmsg+0xd5/0x180
[  593.874200][ T8077]  ____sys_sendmsg+0x6ac/0x940
[  593.879056][ T8077]  ? copy_msghdr_from_user+0x10b/0x160
[  593.884519][ T8077]  ? kernel_sendmsg+0x50/0x50
[  593.889390][ T8077]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  593.895393][ T8077]  ___sys_sendmsg+0x135/0x1d0
[  593.900082][ T8077]  ? do_recvmmsg+0x740/0x740
[  593.904786][ T8077]  ? find_held_lock+0x2d/0x110
[  593.909743][ T8077]  ? preempt_count_sub+0x160/0x160
[  593.914858][ T8077]  ? __fget_light+0x1fc/0x260
[  593.919534][ T8077]  __sys_sendmsg+0x117/0x1e0
[  593.924320][ T8077]  ? __sys_sendmsg_sock+0x30/0x30
[  593.929442][ T8077]  ? syscall_enter_from_user_mode+0x7f/0x120
[  593.935512][ T8077]  do_syscall_64+0x40/0x110
[  593.940101][ T8077]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  593.946348][ T8077] RIP: 0033:0x7fb700fd30b9
[  593.951307][ T8077] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  593.971343][ T8077] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  593.979940][ T8077] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  593.988177][ T8077] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  593.996765][ T8077] RBP: 0000000000090a84 R08: 0000000000000000 R09: 0000000000000006
[  594.004831][ T8077] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  594.012923][ T8077] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  594.021422][ T8077]  </TASK>
[  594.025183][ T8077] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  594.095905][ T8077] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  594.105238][ T8077] CPU: 1 PID: 8077 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  594.116285][ T8077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  594.126426][ T8077] Call Trace:
[  594.129810][ T8077]  <TASK>
[  594.132921][ T8077]  dump_stack_lvl+0x125/0x1b0
[  594.137689][ T8077]  sysfs_warn_dup+0x7f/0xa0
[  594.142275][ T8077]  sysfs_create_dir_ns+0x249/0x2b0
[  594.147472][ T8077]  ? sysfs_create_mount_point+0xb0/0xb0
[  594.153328][ T8077]  ? spin_bug+0x1d0/0x1d0
[  594.157760][ T8077]  ? net_namespace+0x12/0x40
[  594.162622][ T8077]  ? device_namespace+0x8d/0xc0
[  594.167845][ T8077]  kobject_add_internal+0x2c8/0x970
[  594.173235][ T8077]  kobject_add+0x16f/0x240
[  594.177679][ T8077]  ? kset_create_and_add+0x190/0x190
[  594.183112][ T8077]  ? do_raw_spin_unlock+0x173/0x230
[  594.188422][ T8077]  ? kobject_put+0xbe/0x440
[  594.193033][ T8077]  ? device_add+0xc35/0x1aa0
[  594.198502][ T8077]  device_add+0x289/0x1aa0
[  594.202927][ T8077]  ? device_initialize+0x510/0x510
[  594.208686][ T8077]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  594.215549][ T8077]  ? __init_waitqueue_head+0xca/0x150
[  594.221402][ T8077]  netdev_register_kobject+0x183/0x3f0
[  594.226965][ T8077]  register_netdevice+0xbe6/0x14b0
[  594.233495][ T8077]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  594.239576][ T8077]  ? validate_linkmsg+0x6fc/0x9c0
[  594.244872][ T8077]  br_dev_newlink+0x27/0x110
[  594.249912][ T8077]  ? br_changelink+0x1760/0x1760
[  594.254946][ T8077]  __rtnl_newlink+0x1173/0x1930
[  594.260001][ T8077]  ? rtnl_link_unregister+0x260/0x260
[  594.265625][ T8077]  rtnl_newlink+0x67/0xa0
[  594.270065][ T8077]  ? __rtnl_newlink+0x1930/0x1930
[  594.275187][ T8077]  rtnetlink_rcv_msg+0x3c7/0xe00
[  594.280340][ T8077]  ? rtnl_fill_vf+0x4a0/0x4a0
[  594.285026][ T8077]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  594.291287][ T8077]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  594.297673][ T8077]  netlink_rcv_skb+0x16b/0x440
[  594.302472][ T8077]  ? rtnl_fill_vf+0x4a0/0x4a0
[  594.307161][ T8077]  ? netlink_ack+0x1380/0x1380
[  594.312651][ T8077]  ? lock_sync+0x190/0x190
[  594.317530][ T8077]  ? netlink_deliver_tap+0x1a0/0xd00
[  594.322913][ T8077]  ? _copy_from_iter+0x2c1/0x10f0
[  594.328039][ T8077]  netlink_unicast+0x53b/0x810
[  594.333163][ T8077]  ? netlink_attachskb+0x880/0x880
[  594.338573][ T8077]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  594.344477][ T8077]  ? __phys_addr_symbol+0x30/0x70
[  594.349688][ T8077]  ? __check_object_size+0x323/0x730
[  594.354982][ T8077]  netlink_sendmsg+0x93c/0xe40
[  594.359763][ T8077]  ? netlink_unicast+0x810/0x810
[  594.364731][ T8077]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  594.370039][ T8077]  ? netlink_unicast+0x810/0x810
[  594.375080][ T8077]  __sock_sendmsg+0xd5/0x180
[  594.379686][ T8077]  ____sys_sendmsg+0x6ac/0x940
[  594.384453][ T8077]  ? copy_msghdr_from_user+0x10b/0x160
[  594.389937][ T8077]  ? kernel_sendmsg+0x50/0x50
[  594.395588][ T8077]  ___sys_sendmsg+0x135/0x1d0
[  594.400374][ T8077]  ? do_recvmmsg+0x740/0x740
[  594.405148][ T8077]  ? find_held_lock+0x2d/0x110
[  594.409935][ T8077]  ? preempt_count_sub+0x160/0x160
[  594.415061][ T8077]  ? __fget_light+0x1fc/0x260
[  594.419798][ T8077]  __sys_sendmsg+0x117/0x1e0
[  594.424402][ T8077]  ? __sys_sendmsg_sock+0x30/0x30
[  594.429626][ T8077]  ? syscall_enter_from_user_mode+0x7f/0x120
[  594.435751][ T8077]  do_syscall_64+0x40/0x110
[  594.440353][ T8077]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  594.446518][ T8077] RIP: 0033:0x7fb700fd30b9
[  594.450931][ T8077] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  594.470651][ T8077] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  594.479601][ T8077] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  594.487849][ T8077] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  594.496277][ T8077] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  594.504379][ T8077] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  594.512354][ T8077] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  594.520873][ T8077]  </TASK>
[  594.527380][ T8077] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  594.615398][ T8078] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  594.625966][ T8078] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  594.635784][ T8078] CPU: 0 PID: 8078 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  594.645962][ T8078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  594.656801][ T8078] Call Trace:
[  594.660165][ T8078]  <TASK>
[  594.663091][ T8078]  dump_stack_lvl+0x125/0x1b0
[  594.667917][ T8078]  sysfs_warn_dup+0x7f/0xa0
[  594.672435][ T8078]  sysfs_create_dir_ns+0x249/0x2b0
[  594.678064][ T8078]  ? sysfs_create_mount_point+0xb0/0xb0
[  594.683649][ T8078]  ? spin_bug+0x1d0/0x1d0
[  594.688230][ T8078]  ? net_namespace+0x12/0x40
[  594.692821][ T8078]  ? device_namespace+0x8d/0xc0
[  594.697798][ T8078]  kobject_add_internal+0x2c8/0x970
[  594.703085][ T8078]  kobject_add+0x16f/0x240
[  594.707867][ T8078]  ? kset_create_and_add+0x190/0x190
[  594.713205][ T8078]  ? do_raw_spin_unlock+0x173/0x230
[  594.718639][ T8078]  ? kobject_put+0xbe/0x440
[  594.723241][ T8078]  ? device_add+0xc35/0x1aa0
[  594.728009][ T8078]  device_add+0x289/0x1aa0
[  594.732426][ T8078]  ? device_initialize+0x510/0x510
[  594.737563][ T8078]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  594.744608][ T8078]  ? __init_waitqueue_head+0xca/0x150
[  594.750006][ T8078]  netdev_register_kobject+0x183/0x3f0
[  594.755707][ T8078]  register_netdevice+0xbe6/0x14b0
[  594.761118][ T8078]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  594.767276][ T8078]  ? validate_linkmsg+0x6fc/0x9c0
[  594.772477][ T8078]  br_dev_newlink+0x27/0x110
[  594.777156][ T8078]  ? br_changelink+0x1760/0x1760
[  594.782098][ T8078]  __rtnl_newlink+0x1173/0x1930
[  594.787462][ T8078]  ? rtnl_link_unregister+0x260/0x260
[  594.793121][ T8078]  rtnl_newlink+0x67/0xa0
[  594.797478][ T8078]  ? __rtnl_newlink+0x1930/0x1930
[  594.802678][ T8078]  rtnetlink_rcv_msg+0x3c7/0xe00
[  594.808130][ T8078]  ? rtnl_fill_vf+0x4a0/0x4a0
[  594.812825][ T8078]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  594.819012][ T8078]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  594.825137][ T8078]  netlink_rcv_skb+0x16b/0x440
[  594.830265][ T8078]  ? rtnl_fill_vf+0x4a0/0x4a0
[  594.835029][ T8078]  ? netlink_ack+0x1380/0x1380
[  594.839878][ T8078]  ? lock_sync+0x190/0x190
[  594.844765][ T8078]  ? netlink_deliver_tap+0x1a0/0xd00
[  594.850526][ T8078]  ? _copy_from_iter+0x2c1/0x10f0
[  594.855772][ T8078]  netlink_unicast+0x53b/0x810
[  594.860738][ T8078]  ? netlink_attachskb+0x880/0x880
[  594.865936][ T8078]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  594.872191][ T8078]  ? __phys_addr_symbol+0x30/0x70
[  594.877236][ T8078]  ? __check_object_size+0x323/0x730
[  594.882537][ T8078]  netlink_sendmsg+0x93c/0xe40
[  594.887449][ T8078]  ? netlink_unicast+0x810/0x810
[  594.892509][ T8078]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  594.897802][ T8078]  ? netlink_unicast+0x810/0x810
[  594.902748][ T8078]  __sock_sendmsg+0xd5/0x180
[  594.907352][ T8078]  ____sys_sendmsg+0x6ac/0x940
[  594.912146][ T8078]  ? copy_msghdr_from_user+0x10b/0x160
[  594.917733][ T8078]  ? kernel_sendmsg+0x50/0x50
[  594.922519][ T8078]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  594.928834][ T8078]  ___sys_sendmsg+0x135/0x1d0
[  594.933556][ T8078]  ? do_recvmmsg+0x740/0x740
[  594.938240][ T8078]  ? find_held_lock+0x2d/0x110
[  594.943102][ T8078]  ? preempt_count_sub+0x160/0x160
[  594.948302][ T8078]  ? __fget_light+0x1fc/0x260
[  594.953150][ T8078]  __sys_sendmsg+0x117/0x1e0
[  594.958106][ T8078]  ? __sys_sendmsg_sock+0x30/0x30
[  594.963248][ T8078]  ? syscall_enter_from_user_mode+0x7f/0x120
[  594.969341][ T8078]  do_syscall_64+0x40/0x110
[  594.973968][ T8078]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  594.980599][ T8078] RIP: 0033:0x7fb700fd30b9
[  594.985138][ T8078] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  595.006250][ T8078] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  595.014852][ T8078] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  595.023273][ T8078] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  595.031660][ T8078] RBP: 0000000000090e82 R08: 0000000000000000 R09: 0000000000000006
[  595.039779][ T8078] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  595.048099][ T8078] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  595.056333][ T8078]  </TASK>
[  595.062798][ T8078] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  595.117286][ T8078] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  595.126955][ T8078] CPU: 0 PID: 8078 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  595.137426][ T8078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  595.147667][ T8078] Call Trace:
[  595.151031][ T8078]  <TASK>
[  595.154131][ T8078]  dump_stack_lvl+0x125/0x1b0
[  595.158910][ T8078]  sysfs_warn_dup+0x7f/0xa0
[  595.163494][ T8078]  sysfs_create_dir_ns+0x249/0x2b0
[  595.168717][ T8078]  ? sysfs_create_mount_point+0xb0/0xb0
[  595.174549][ T8078]  ? spin_bug+0x1d0/0x1d0
[  595.179418][ T8078]  ? net_namespace+0x12/0x40
[  595.184455][ T8078]  ? device_namespace+0x8d/0xc0
[  595.189322][ T8078]  kobject_add_internal+0x2c8/0x970
[  595.194710][ T8078]  kobject_add+0x16f/0x240
[  595.199341][ T8078]  ? kset_create_and_add+0x190/0x190
[  595.204893][ T8078]  ? do_raw_spin_unlock+0x173/0x230
[  595.210090][ T8078]  ? kobject_put+0xbe/0x440
[  595.214620][ T8078]  ? device_add+0xc35/0x1aa0
[  595.219211][ T8078]  device_add+0x289/0x1aa0
[  595.223662][ T8078]  ? device_initialize+0x510/0x510
[  595.228861][ T8078]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  595.235888][ T8078]  ? __init_waitqueue_head+0xca/0x150
[  595.241363][ T8078]  netdev_register_kobject+0x183/0x3f0
[  595.247465][ T8078]  register_netdevice+0xbe6/0x14b0
[  595.252622][ T8078]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  595.258825][ T8078]  ? validate_linkmsg+0x6fc/0x9c0
[  595.264068][ T8078]  br_dev_newlink+0x27/0x110
[  595.268847][ T8078]  ? br_changelink+0x1760/0x1760
[  595.276928][ T8078]  __rtnl_newlink+0x1173/0x1930
[  595.281900][ T8078]  ? rtnl_link_unregister+0x260/0x260
[  595.287516][ T8078]  rtnl_newlink+0x67/0xa0
[  595.291998][ T8078]  ? __rtnl_newlink+0x1930/0x1930
[  595.297413][ T8078]  rtnetlink_rcv_msg+0x3c7/0xe00
[  595.302575][ T8078]  ? rtnl_fill_vf+0x4a0/0x4a0
[  595.307620][ T8078]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  595.313837][ T8078]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  595.320111][ T8078]  netlink_rcv_skb+0x16b/0x440
[  595.325081][ T8078]  ? rtnl_fill_vf+0x4a0/0x4a0
[  595.330225][ T8078]  ? netlink_ack+0x1380/0x1380
[  595.335032][ T8078]  ? lock_sync+0x190/0x190
[  595.339669][ T8078]  ? netlink_deliver_tap+0x1a0/0xd00
[  595.345260][ T8078]  ? _copy_from_iter+0x2c1/0x10f0
[  595.350431][ T8078]  netlink_unicast+0x53b/0x810
[  595.355218][ T8078]  ? netlink_attachskb+0x880/0x880
[  595.360510][ T8078]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  595.367113][ T8078]  ? __phys_addr_symbol+0x30/0x70
[  595.372511][ T8078]  ? __check_object_size+0x323/0x730
[  595.377992][ T8078]  netlink_sendmsg+0x93c/0xe40
[  595.382861][ T8078]  ? netlink_unicast+0x810/0x810
[  595.387812][ T8078]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  595.393109][ T8078]  ? netlink_unicast+0x810/0x810
[  595.398077][ T8078]  __sock_sendmsg+0xd5/0x180
[  595.403560][ T8078]  ____sys_sendmsg+0x6ac/0x940
[  595.408535][ T8078]  ? copy_msghdr_from_user+0x10b/0x160
[  595.414443][ T8078]  ? kernel_sendmsg+0x50/0x50
[  595.419263][ T8078]  ? hlock_class+0x4e/0x130
[  595.424213][ T8078]  ? __lock_acquire+0x14e0/0x3b10
[  595.429301][ T8078]  ___sys_sendmsg+0x135/0x1d0
[  595.434316][ T8078]  ? do_recvmmsg+0x740/0x740
[  595.438917][ T8078]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  595.445008][ T8078]  ? find_held_lock+0x2d/0x110
[  595.449903][ T8078]  ? __fget_light+0x1fc/0x260
[  595.454753][ T8078]  __sys_sendmsg+0x117/0x1e0
[  595.459362][ T8078]  ? __sys_sendmsg_sock+0x30/0x30
[  595.464499][ T8078]  ? __do_sys_rseq+0x750/0x750
[  595.469716][ T8078]  ? syscall_enter_from_user_mode+0x7f/0x120
[  595.476151][ T8078]  do_syscall_64+0x40/0x110
[  595.480837][ T8078]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  595.486860][ T8078] RIP: 0033:0x7fb700fd30b9
[  595.491469][ T8078] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  595.512669][ T8078] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  595.521288][ T8078] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  595.529648][ T8078] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  595.538155][ T8078] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  595.546221][ T8078] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  595.554419][ T8078] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  595.562869][ T8078]  </TASK>
[  595.566749][ T8078] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  595.620932][ T8079] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  595.631269][ T8079] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  595.640505][ T8079] CPU: 0 PID: 8079 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  595.651212][ T8079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  595.661361][ T8079] Call Trace:
[  595.664901][ T8079]  <TASK>
[  595.667835][ T8079]  dump_stack_lvl+0x125/0x1b0
[  595.672616][ T8079]  sysfs_warn_dup+0x7f/0xa0
[  595.677163][ T8079]  sysfs_create_dir_ns+0x249/0x2b0
[  595.682470][ T8079]  ? sysfs_create_mount_point+0xb0/0xb0
[  595.688117][ T8079]  ? spin_bug+0x1d0/0x1d0
[  595.692550][ T8079]  ? net_namespace+0x12/0x40
[  595.697254][ T8079]  ? device_namespace+0x8d/0xc0
[  595.702216][ T8079]  kobject_add_internal+0x2c8/0x970
[  595.707443][ T8079]  kobject_add+0x16f/0x240
[  595.711899][ T8079]  ? kset_create_and_add+0x190/0x190
[  595.717202][ T8079]  ? do_raw_spin_unlock+0x173/0x230
[  595.722615][ T8079]  ? kobject_put+0xbe/0x440
[  595.727765][ T8079]  ? device_add+0xc35/0x1aa0
[  595.732428][ T8079]  device_add+0x289/0x1aa0
[  595.736872][ T8079]  ? device_initialize+0x510/0x510
[  595.742074][ T8079]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  595.749654][ T8079]  ? __init_waitqueue_head+0xca/0x150
[  595.755371][ T8079]  netdev_register_kobject+0x183/0x3f0
[  595.761140][ T8079]  register_netdevice+0xbe6/0x14b0
[  595.766362][ T8079]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  595.772685][ T8079]  ? validate_linkmsg+0x6fc/0x9c0
[  595.778004][ T8079]  br_dev_newlink+0x27/0x110
[  595.783889][ T8079]  ? br_changelink+0x1760/0x1760
[  595.789383][ T8079]  __rtnl_newlink+0x1173/0x1930
[  595.794615][ T8079]  ? rtnl_link_unregister+0x260/0x260
[  595.800226][ T8079]  rtnl_newlink+0x67/0xa0
[  595.807648][ T8079]  ? __rtnl_newlink+0x1930/0x1930
[  595.812882][ T8079]  rtnetlink_rcv_msg+0x3c7/0xe00
[  595.817938][ T8079]  ? rtnl_fill_vf+0x4a0/0x4a0
[  595.822733][ T8079]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  595.829599][ T8079]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  595.836015][ T8079]  netlink_rcv_skb+0x16b/0x440
[  595.841587][ T8079]  ? rtnl_fill_vf+0x4a0/0x4a0
[  595.846549][ T8079]  ? netlink_ack+0x1380/0x1380
[  595.851410][ T8079]  ? lock_sync+0x190/0x190
[  595.856024][ T8079]  ? netlink_deliver_tap+0x1a0/0xd00
[  595.861769][ T8079]  ? _copy_from_iter+0x2c1/0x10f0
[  595.866910][ T8079]  netlink_unicast+0x53b/0x810
[  595.871914][ T8079]  ? netlink_attachskb+0x880/0x880
[  595.877130][ T8079]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  595.883208][ T8079]  ? __phys_addr_symbol+0x30/0x70
[  595.888329][ T8079]  ? __check_object_size+0x323/0x730
[  595.893640][ T8079]  netlink_sendmsg+0x93c/0xe40
[  595.899145][ T8079]  ? netlink_unicast+0x810/0x810
[  595.904399][ T8079]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  595.910175][ T8079]  ? netlink_unicast+0x810/0x810
[  595.915306][ T8079]  __sock_sendmsg+0xd5/0x180
[  595.920170][ T8079]  ____sys_sendmsg+0x6ac/0x940
[  595.925202][ T8079]  ? copy_msghdr_from_user+0x10b/0x160
[  595.930762][ T8079]  ? kernel_sendmsg+0x50/0x50
[  595.935739][ T8079]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  595.942199][ T8079]  ___sys_sendmsg+0x135/0x1d0
[  595.947087][ T8079]  ? do_recvmmsg+0x740/0x740
[  595.952047][ T8079]  ? find_held_lock+0x2d/0x110
[  595.957096][ T8079]  ? preempt_count_sub+0x160/0x160
[  595.962243][ T8079]  ? __fget_light+0x1fc/0x260
[  595.967221][ T8079]  __sys_sendmsg+0x117/0x1e0
[  595.971939][ T8079]  ? __sys_sendmsg_sock+0x30/0x30
[  595.977393][ T8079]  ? syscall_enter_from_user_mode+0x7f/0x120
[  595.983564][ T8079]  do_syscall_64+0x40/0x110
[  595.988082][ T8079]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  595.994093][ T8079] RIP: 0033:0x7fb700fd30b9
[  595.998862][ T8079] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  596.019432][ T8079] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  596.027870][ T8079] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  596.036218][ T8079] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  596.044722][ T8079] RBP: 0000000000091287 R08: 0000000000000000 R09: 0000000000000006
[  596.053241][ T8079] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  596.061480][ T8079] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  596.070018][ T8079]  </TASK>
[  596.073708][ T8079] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  596.146210][ T8079] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  596.155900][ T8079] CPU: 0 PID: 8079 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  596.166693][ T8079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  596.177010][ T8079] Call Trace:
[  596.180460][ T8079]  <TASK>
[  596.183472][ T8079]  dump_stack_lvl+0x125/0x1b0
[  596.188325][ T8079]  sysfs_warn_dup+0x7f/0xa0
[  596.193784][ T8079]  sysfs_create_dir_ns+0x249/0x2b0
[  596.198990][ T8079]  ? sysfs_create_mount_point+0xb0/0xb0
[  596.204539][ T8079]  ? spin_bug+0x1d0/0x1d0
[  596.208884][ T8079]  ? net_namespace+0x12/0x40
[  596.213654][ T8079]  ? device_namespace+0x8d/0xc0
[  596.218607][ T8079]  kobject_add_internal+0x2c8/0x970
[  596.224168][ T8079]  kobject_add+0x16f/0x240
[  596.228682][ T8079]  ? kset_create_and_add+0x190/0x190
[  596.233998][ T8079]  ? do_raw_spin_unlock+0x173/0x230
[  596.239554][ T8079]  ? kobject_put+0xbe/0x440
[  596.244260][ T8079]  ? device_add+0xc35/0x1aa0
[  596.248870][ T8079]  device_add+0x289/0x1aa0
[  596.253987][ T8079]  ? device_initialize+0x510/0x510
[  596.259717][ T8079]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  596.266674][ T8079]  ? __init_waitqueue_head+0xca/0x150
[  596.272096][ T8079]  netdev_register_kobject+0x183/0x3f0
[  596.277832][ T8079]  register_netdevice+0xbe6/0x14b0
[  596.282961][ T8079]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  596.289154][ T8079]  ? validate_linkmsg+0x6fc/0x9c0
[  596.294270][ T8079]  br_dev_newlink+0x27/0x110
[  596.298959][ T8079]  ? br_changelink+0x1760/0x1760
[  596.303900][ T8079]  __rtnl_newlink+0x1173/0x1930
[  596.308766][ T8079]  ? rtnl_link_unregister+0x260/0x260
[  596.314257][ T8079]  rtnl_newlink+0x67/0xa0
[  596.318598][ T8079]  ? __rtnl_newlink+0x1930/0x1930
[  596.323737][ T8079]  rtnetlink_rcv_msg+0x3c7/0xe00
[  596.328781][ T8079]  ? rtnl_fill_vf+0x4a0/0x4a0
[  596.333466][ T8079]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  596.339556][ T8079]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  596.345658][ T8079]  netlink_rcv_skb+0x16b/0x440
[  596.350882][ T8079]  ? rtnl_fill_vf+0x4a0/0x4a0
[  596.355836][ T8079]  ? netlink_ack+0x1380/0x1380
[  596.360608][ T8079]  ? lock_sync+0x190/0x190
[  596.365314][ T8079]  ? netlink_deliver_tap+0x1a0/0xd00
[  596.370784][ T8079]  ? _copy_from_iter+0x2c1/0x10f0
[  596.375938][ T8079]  netlink_unicast+0x53b/0x810
[  596.381064][ T8079]  ? netlink_attachskb+0x880/0x880
[  596.386273][ T8079]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  596.392175][ T8079]  ? __phys_addr_symbol+0x30/0x70
[  596.397291][ T8079]  ? __check_object_size+0x323/0x730
[  596.402676][ T8079]  netlink_sendmsg+0x93c/0xe40
[  596.407562][ T8079]  ? netlink_unicast+0x810/0x810
[  596.412524][ T8079]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  596.417925][ T8079]  ? netlink_unicast+0x810/0x810
[  596.422974][ T8079]  __sock_sendmsg+0xd5/0x180
[  596.427685][ T8079]  ____sys_sendmsg+0x6ac/0x940
[  596.433084][ T8079]  ? copy_msghdr_from_user+0x10b/0x160
[  596.439082][ T8079]  ? kernel_sendmsg+0x50/0x50
[  596.443789][ T8079]  ___sys_sendmsg+0x135/0x1d0
[  596.448509][ T8079]  ? do_recvmmsg+0x740/0x740
[  596.453196][ T8079]  ? find_held_lock+0x2d/0x110
[  596.458154][ T8079]  ? preempt_count_sub+0x160/0x160
[  596.463461][ T8079]  ? __fget_light+0x1fc/0x260
[  596.468232][ T8079]  __sys_sendmsg+0x117/0x1e0
[  596.472833][ T8079]  ? __sys_sendmsg_sock+0x30/0x30
[  596.478269][ T8079]  ? syscall_enter_from_user_mode+0x7f/0x120
[  596.484560][ T8079]  do_syscall_64+0x40/0x110
[  596.489857][ T8079]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  596.495853][ T8079] RIP: 0033:0x7fb700fd30b9
[  596.500441][ T8079] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  596.520835][ T8079] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  596.529348][ T8079] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  596.537766][ T8079] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  596.546003][ T8079] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  596.554145][ T8079] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  596.562218][ T8079] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  596.570467][ T8079]  </TASK>
[  596.575205][ T8079] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  596.631671][ T8080] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  596.642230][ T8080] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  596.651519][ T8080] CPU: 0 PID: 8080 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  596.661949][ T8080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  596.672450][ T8080] Call Trace:
[  596.675741][ T8080]  <TASK>
[  596.678677][ T8080]  dump_stack_lvl+0x125/0x1b0
[  596.683564][ T8080]  sysfs_warn_dup+0x7f/0xa0
[  596.688094][ T8080]  sysfs_create_dir_ns+0x249/0x2b0
[  596.693227][ T8080]  ? sysfs_create_mount_point+0xb0/0xb0
[  596.698950][ T8080]  ? spin_bug+0x1d0/0x1d0
[  596.703292][ T8080]  ? net_namespace+0x12/0x40
[  596.707997][ T8080]  ? device_namespace+0x8d/0xc0
[  596.712866][ T8080]  kobject_add_internal+0x2c8/0x970
[  596.718084][ T8080]  kobject_add+0x16f/0x240
[  596.722512][ T8080]  ? kset_create_and_add+0x190/0x190
[  596.727806][ T8080]  ? do_raw_spin_unlock+0x173/0x230
[  596.733023][ T8080]  ? kobject_put+0xbe/0x440
[  596.737678][ T8080]  ? device_add+0xc35/0x1aa0
[  596.742299][ T8080]  device_add+0x289/0x1aa0
[  596.747487][ T8080]  ? device_initialize+0x510/0x510
[  596.752631][ T8080]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  596.759772][ T8080]  ? __init_waitqueue_head+0xca/0x150
[  596.765164][ T8080]  netdev_register_kobject+0x183/0x3f0
[  596.770745][ T8080]  register_netdevice+0xbe6/0x14b0
[  596.776058][ T8080]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  596.781974][ T8080]  ? validate_linkmsg+0x6fc/0x9c0
[  596.787171][ T8080]  br_dev_newlink+0x27/0x110
[  596.791899][ T8080]  ? br_changelink+0x1760/0x1760
[  596.797147][ T8080]  __rtnl_newlink+0x1173/0x1930
[  596.802419][ T8080]  ? rtnl_link_unregister+0x260/0x260
[  596.808017][ T8080]  rtnl_newlink+0x67/0xa0
[  596.812623][ T8080]  ? __rtnl_newlink+0x1930/0x1930
[  596.818047][ T8080]  rtnetlink_rcv_msg+0x3c7/0xe00
[  596.823278][ T8080]  ? rtnl_fill_vf+0x4a0/0x4a0
[  596.827994][ T8080]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  596.834358][ T8080]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  596.840645][ T8080]  netlink_rcv_skb+0x16b/0x440
[  596.845707][ T8080]  ? rtnl_fill_vf+0x4a0/0x4a0
[  596.850586][ T8080]  ? netlink_ack+0x1380/0x1380
[  596.855364][ T8080]  ? lock_sync+0x190/0x190
[  596.859909][ T8080]  ? netlink_deliver_tap+0x1a0/0xd00
[  596.865750][ T8080]  ? _copy_from_iter+0x2c1/0x10f0
[  596.872265][ T8080]  netlink_unicast+0x53b/0x810
[  596.877407][ T8080]  ? netlink_attachskb+0x880/0x880
[  596.882530][ T8080]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  596.889127][ T8080]  ? __phys_addr_symbol+0x30/0x70
[  596.894420][ T8080]  ? __check_object_size+0x323/0x730
[  596.899977][ T8080]  netlink_sendmsg+0x93c/0xe40
[  596.905023][ T8080]  ? netlink_unicast+0x810/0x810
[  596.910722][ T8080]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  596.916889][ T8080]  ? netlink_unicast+0x810/0x810
[  596.921928][ T8080]  __sock_sendmsg+0xd5/0x180
[  596.926621][ T8080]  ____sys_sendmsg+0x6ac/0x940
[  596.931480][ T8080]  ? copy_msghdr_from_user+0x10b/0x160
[  596.937051][ T8080]  ? kernel_sendmsg+0x50/0x50
[  596.941830][ T8080]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  596.948270][ T8080]  ___sys_sendmsg+0x135/0x1d0
[  596.953503][ T8080]  ? do_recvmmsg+0x740/0x740
[  596.958718][ T8080]  ? find_held_lock+0x2d/0x110
[  596.963787][ T8080]  ? preempt_count_sub+0x160/0x160
[  596.969177][ T8080]  ? __fget_light+0x1fc/0x260
[  596.973965][ T8080]  __sys_sendmsg+0x117/0x1e0
[  596.978656][ T8080]  ? __sys_sendmsg_sock+0x30/0x30
[  596.983708][ T8080]  ? syscall_enter_from_user_mode+0x7f/0x120
[  596.990079][ T8080]  do_syscall_64+0x40/0x110
[  596.994864][ T8080]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  597.001118][ T8080] RIP: 0033:0x7fb700fd30b9
[  597.005536][ T8080] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  597.026054][ T8080] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  597.034649][ T8080] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  597.043076][ T8080] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  597.051687][ T8080] RBP: 0000000000091678 R08: 0000000000000000 R09: 0000000000000006
[  597.060313][ T8080] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  597.068542][ T8080] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  597.077092][ T8080]  </TASK>
[  597.081047][ T8080] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  597.136033][ T8080] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  597.145844][ T8080] CPU: 1 PID: 8080 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  597.156005][ T8080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  597.166879][ T8080] Call Trace:
[  597.170364][ T8080]  <TASK>
[  597.173379][ T8080]  dump_stack_lvl+0x125/0x1b0
[  597.178150][ T8080]  sysfs_warn_dup+0x7f/0xa0
[  597.182852][ T8080]  sysfs_create_dir_ns+0x249/0x2b0
[  597.188398][ T8080]  ? sysfs_create_mount_point+0xb0/0xb0
[  597.194077][ T8080]  ? spin_bug+0x1d0/0x1d0
[  597.198590][ T8080]  ? net_namespace+0x12/0x40
[  597.203226][ T8080]  ? device_namespace+0x8d/0xc0
[  597.208115][ T8080]  kobject_add_internal+0x2c8/0x970
[  597.213438][ T8080]  kobject_add+0x16f/0x240
[  597.218332][ T8080]  ? kset_create_and_add+0x190/0x190
[  597.223633][ T8080]  ? do_raw_spin_unlock+0x173/0x230
[  597.229022][ T8080]  ? kobject_put+0xbe/0x440
[  597.233548][ T8080]  ? device_add+0xc35/0x1aa0
[  597.238334][ T8080]  device_add+0x289/0x1aa0
[  597.243205][ T8080]  ? device_initialize+0x510/0x510
[  597.248601][ T8080]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  597.255580][ T8080]  ? __init_waitqueue_head+0xca/0x150
[  597.261061][ T8080]  netdev_register_kobject+0x183/0x3f0
[  597.267250][ T8080]  register_netdevice+0xbe6/0x14b0
[  597.272775][ T8080]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  597.278709][ T8080]  ? validate_linkmsg+0x6fc/0x9c0
[  597.283932][ T8080]  br_dev_newlink+0x27/0x110
[  597.288545][ T8080]  ? br_changelink+0x1760/0x1760
[  597.294213][ T8080]  __rtnl_newlink+0x1173/0x1930
[  597.299165][ T8080]  ? rtnl_link_unregister+0x260/0x260
[  597.304668][ T8080]  rtnl_newlink+0x67/0xa0
[  597.309099][ T8080]  ? __rtnl_newlink+0x1930/0x1930
[  597.314200][ T8080]  rtnetlink_rcv_msg+0x3c7/0xe00
[  597.319266][ T8080]  ? rtnl_fill_vf+0x4a0/0x4a0
[  597.324043][ T8080]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  597.330036][ T8080]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  597.336244][ T8080]  netlink_rcv_skb+0x16b/0x440
[  597.341291][ T8080]  ? rtnl_fill_vf+0x4a0/0x4a0
[  597.346079][ T8080]  ? netlink_ack+0x1380/0x1380
[  597.350961][ T8080]  ? lock_sync+0x190/0x190
[  597.355576][ T8080]  ? netlink_deliver_tap+0x1a0/0xd00
[  597.360893][ T8080]  ? _copy_from_iter+0x2c1/0x10f0
[  597.366216][ T8080]  netlink_unicast+0x53b/0x810
[  597.371364][ T8080]  ? netlink_attachskb+0x880/0x880
[  597.376580][ T8080]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  597.382570][ T8080]  ? __phys_addr_symbol+0x30/0x70
[  597.387743][ T8080]  ? __check_object_size+0x323/0x730
[  597.393135][ T8080]  netlink_sendmsg+0x93c/0xe40
[  597.398466][ T8080]  ? netlink_unicast+0x810/0x810
[  597.403679][ T8080]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  597.408975][ T8080]  ? netlink_unicast+0x810/0x810
[  597.414010][ T8080]  __sock_sendmsg+0xd5/0x180
[  597.418694][ T8080]  ____sys_sendmsg+0x6ac/0x940
[  597.423645][ T8080]  ? copy_msghdr_from_user+0x10b/0x160
[  597.429481][ T8080]  ? kernel_sendmsg+0x50/0x50
[  597.434644][ T8080]  ? hlock_class+0x4e/0x130
[  597.439329][ T8080]  ? __lock_acquire+0x14e0/0x3b10
[  597.444460][ T8080]  ___sys_sendmsg+0x135/0x1d0
[  597.449406][ T8080]  ? do_recvmmsg+0x740/0x740
[  597.454032][ T8080]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  597.460104][ T8080]  ? find_held_lock+0x2d/0x110
[  597.465088][ T8080]  ? __fget_light+0x1fc/0x260
[  597.469779][ T8080]  __sys_sendmsg+0x117/0x1e0
[  597.474511][ T8080]  ? __sys_sendmsg_sock+0x30/0x30
[  597.479641][ T8080]  ? xfd_validate_state+0x5d/0x180
[  597.484889][ T8080]  ? syscall_enter_from_user_mode+0x7f/0x120
[  597.491333][ T8080]  do_syscall_64+0x40/0x110
[  597.496035][ T8080]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  597.502572][ T8080] RIP: 0033:0x7fb700fd30b9
[  597.507354][ T8080] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  597.527323][ T8080] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  597.535749][ T8080] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  597.543915][ T8080] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  597.552456][ T8080] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  597.560618][ T8080] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  597.568704][ T8080] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  597.576686][ T8080]  </TASK>
[  597.580031][ T8080] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  597.641537][ T8081] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  597.652244][ T8081] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  597.662341][ T8081] CPU: 1 PID: 8081 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  597.672616][ T8081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  597.682867][ T8081] Call Trace:
[  597.686324][ T8081]  <TASK>
[  597.689513][ T8081]  dump_stack_lvl+0x125/0x1b0
[  597.694209][ T8081]  sysfs_warn_dup+0x7f/0xa0
[  597.698732][ T8081]  sysfs_create_dir_ns+0x249/0x2b0
[  597.704039][ T8081]  ? sysfs_create_mount_point+0xb0/0xb0
[  597.709626][ T8081]  ? spin_bug+0x1d0/0x1d0
[  597.713984][ T8081]  ? net_namespace+0x12/0x40
[  597.718579][ T8081]  ? device_namespace+0x8d/0xc0
[  597.723453][ T8081]  kobject_add_internal+0x2c8/0x970
[  597.729013][ T8081]  kobject_add+0x16f/0x240
[  597.733437][ T8081]  ? kset_create_and_add+0x190/0x190
[  597.739714][ T8081]  ? do_raw_spin_unlock+0x173/0x230
[  597.745105][ T8081]  ? kobject_put+0xbe/0x440
[  597.749712][ T8081]  ? device_add+0xc35/0x1aa0
[  597.754435][ T8081]  device_add+0x289/0x1aa0
[  597.759083][ T8081]  ? device_initialize+0x510/0x510
[  597.764393][ T8081]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  597.771432][ T8081]  ? __init_waitqueue_head+0xca/0x150
[  597.776834][ T8081]  netdev_register_kobject+0x183/0x3f0
[  597.782745][ T8081]  register_netdevice+0xbe6/0x14b0
[  597.788754][ T8081]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  597.794747][ T8081]  ? validate_linkmsg+0x6fc/0x9c0
[  597.799961][ T8081]  br_dev_newlink+0x27/0x110
[  597.805695][ T8081]  ? br_changelink+0x1760/0x1760
[  597.811488][ T8081]  __rtnl_newlink+0x1173/0x1930
[  597.816557][ T8081]  ? rtnl_link_unregister+0x260/0x260
[  597.822163][ T8081]  rtnl_newlink+0x67/0xa0
[  597.826523][ T8081]  ? __rtnl_newlink+0x1930/0x1930
[  597.832106][ T8081]  rtnetlink_rcv_msg+0x3c7/0xe00
[  597.837278][ T8081]  ? rtnl_fill_vf+0x4a0/0x4a0
[  597.842230][ T8081]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  597.848225][ T8081]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  597.854666][ T8081]  netlink_rcv_skb+0x16b/0x440
[  597.859617][ T8081]  ? rtnl_fill_vf+0x4a0/0x4a0
[  597.864301][ T8081]  ? netlink_ack+0x1380/0x1380
[  597.869367][ T8081]  ? lock_sync+0x190/0x190
[  597.873894][ T8081]  ? netlink_deliver_tap+0x1a0/0xd00
[  597.879278][ T8081]  ? _copy_from_iter+0x2c1/0x10f0
[  597.884426][ T8081]  netlink_unicast+0x53b/0x810
[  597.889487][ T8081]  ? netlink_attachskb+0x880/0x880
[  597.894633][ T8081]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  597.900547][ T8081]  ? __phys_addr_symbol+0x30/0x70
[  597.905583][ T8081]  ? __check_object_size+0x323/0x730
[  597.910994][ T8081]  netlink_sendmsg+0x93c/0xe40
[  597.916053][ T8081]  ? netlink_unicast+0x810/0x810
[  597.921281][ T8081]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  597.926751][ T8081]  ? netlink_unicast+0x810/0x810
[  597.932077][ T8081]  __sock_sendmsg+0xd5/0x180
[  597.936772][ T8081]  ____sys_sendmsg+0x6ac/0x940
[  597.942001][ T8081]  ? copy_msghdr_from_user+0x10b/0x160
[  597.947849][ T8081]  ? kernel_sendmsg+0x50/0x50
[  597.952548][ T8081]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  597.958544][ T8081]  ___sys_sendmsg+0x135/0x1d0
[  597.963668][ T8081]  ? do_recvmmsg+0x740/0x740
[  597.968440][ T8081]  ? find_held_lock+0x2d/0x110
[  597.973224][ T8081]  ? preempt_count_sub+0x160/0x160
[  597.978625][ T8081]  ? __fget_light+0x1fc/0x260
[  597.983767][ T8081]  __sys_sendmsg+0x117/0x1e0
[  597.988475][ T8081]  ? __sys_sendmsg_sock+0x30/0x30
[  597.993609][ T8081]  ? syscall_enter_from_user_mode+0x7f/0x120
[  597.999612][ T8081]  do_syscall_64+0x40/0x110
[  598.004317][ T8081]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  598.011038][ T8081] RIP: 0033:0x7fb700fd30b9
[  598.015476][ T8081] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  598.035804][ T8081] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  598.044310][ T8081] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  598.053241][ T8081] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  598.061651][ T8081] RBP: 0000000000091a6a R08: 0000000000000000 R09: 0000000000000006
[  598.070073][ T8081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  598.078932][ T8081] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  598.087109][ T8081]  </TASK>
[  598.092151][ T8081] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  598.149241][ T8081] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  598.159026][ T8081] CPU: 1 PID: 8081 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  598.169302][ T8081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  598.179544][ T8081] Call Trace:
[  598.183085][ T8081]  <TASK>
[  598.186104][ T8081]  dump_stack_lvl+0x125/0x1b0
[  598.190877][ T8081]  sysfs_warn_dup+0x7f/0xa0
[  598.195394][ T8081]  sysfs_create_dir_ns+0x249/0x2b0
[  598.200615][ T8081]  ? sysfs_create_mount_point+0xb0/0xb0
[  598.206290][ T8081]  ? spin_bug+0x1d0/0x1d0
[  598.210715][ T8081]  ? net_namespace+0x12/0x40
[  598.215760][ T8081]  ? device_namespace+0x8d/0xc0
[  598.220647][ T8081]  kobject_add_internal+0x2c8/0x970
[  598.225951][ T8081]  kobject_add+0x16f/0x240
[  598.230634][ T8081]  ? kset_create_and_add+0x190/0x190
[  598.235930][ T8081]  ? do_raw_spin_unlock+0x173/0x230
[  598.241216][ T8081]  ? kobject_put+0xbe/0x440
[  598.245932][ T8081]  ? device_add+0xc35/0x1aa0
[  598.250730][ T8081]  device_add+0x289/0x1aa0
[  598.255213][ T8081]  ? device_initialize+0x510/0x510
[  598.260328][ T8081]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  598.267366][ T8081]  ? __init_waitqueue_head+0xca/0x150
[  598.273277][ T8081]  netdev_register_kobject+0x183/0x3f0
[  598.278753][ T8081]  register_netdevice+0xbe6/0x14b0
[  598.284190][ T8081]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  598.290177][ T8081]  ? validate_linkmsg+0x6fc/0x9c0
[  598.295566][ T8081]  br_dev_newlink+0x27/0x110
[  598.300169][ T8081]  ? br_changelink+0x1760/0x1760
[  598.305195][ T8081]  __rtnl_newlink+0x1173/0x1930
[  598.310247][ T8081]  ? rtnl_link_unregister+0x260/0x260
[  598.316012][ T8081]  rtnl_newlink+0x67/0xa0
[  598.320988][ T8081]  ? __rtnl_newlink+0x1930/0x1930
[  598.326553][ T8081]  rtnetlink_rcv_msg+0x3c7/0xe00
[  598.331612][ T8081]  ? rtnl_fill_vf+0x4a0/0x4a0
[  598.336493][ T8081]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  598.342893][ T8081]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  598.349165][ T8081]  netlink_rcv_skb+0x16b/0x440
[  598.354119][ T8081]  ? rtnl_fill_vf+0x4a0/0x4a0
[  598.358893][ T8081]  ? netlink_ack+0x1380/0x1380
[  598.363943][ T8081]  ? lock_sync+0x190/0x190
[  598.368472][ T8081]  ? netlink_deliver_tap+0x1a0/0xd00
[  598.374198][ T8081]  ? _copy_from_iter+0x2c1/0x10f0
[  598.379415][ T8081]  netlink_unicast+0x53b/0x810
[  598.384453][ T8081]  ? netlink_attachskb+0x880/0x880
[  598.389590][ T8081]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  598.395576][ T8081]  ? __phys_addr_symbol+0x30/0x70
[  598.400701][ T8081]  ? __check_object_size+0x323/0x730
[  598.406086][ T8081]  netlink_sendmsg+0x93c/0xe40
[  598.410869][ T8081]  ? netlink_unicast+0x810/0x810
[  598.416352][ T8081]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  598.422471][ T8081]  ? netlink_unicast+0x810/0x810
[  598.427521][ T8081]  __sock_sendmsg+0xd5/0x180
[  598.432131][ T8081]  ____sys_sendmsg+0x6ac/0x940
[  598.437167][ T8081]  ? copy_msghdr_from_user+0x10b/0x160
[  598.442724][ T8081]  ? kernel_sendmsg+0x50/0x50
[  598.447583][ T8081]  ? hlock_class+0x4e/0x130
[  598.452114][ T8081]  ? __lock_acquire+0x14e0/0x3b10
[  598.458266][ T8081]  ___sys_sendmsg+0x135/0x1d0
[  598.463076][ T8081]  ? do_recvmmsg+0x740/0x740
[  598.467853][ T8081]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  598.474333][ T8081]  ? find_held_lock+0x2d/0x110
[  598.479143][ T8081]  ? __fget_light+0x1fc/0x260
[  598.484450][ T8081]  __sys_sendmsg+0x117/0x1e0
[  598.489103][ T8081]  ? __sys_sendmsg_sock+0x30/0x30
[  598.494806][ T8081]  ? xfd_validate_state+0x5d/0x180
[  598.500129][ T8081]  ? syscall_enter_from_user_mode+0x7f/0x120
[  598.506242][ T8081]  do_syscall_64+0x40/0x110
[  598.510979][ T8081]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  598.517101][ T8081] RIP: 0033:0x7fb700fd30b9
[  598.521556][ T8081] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  598.541452][ T8081] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  598.550060][ T8081] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  598.558488][ T8081] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  598.566898][ T8081] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  598.574881][ T8081] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  598.583393][ T8081] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  598.591610][ T8081]  </TASK>
[  598.596862][ T8081] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  598.692333][ T8082] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  598.704830][ T8082] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  598.715334][ T8082] CPU: 0 PID: 8082 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  598.725575][ T8082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  598.735819][ T8082] Call Trace:
[  598.739443][ T8082]  <TASK>
[  598.742532][ T8082]  dump_stack_lvl+0x125/0x1b0
[  598.747317][ T8082]  sysfs_warn_dup+0x7f/0xa0
[  598.751871][ T8082]  sysfs_create_dir_ns+0x249/0x2b0
[  598.757114][ T8082]  ? sysfs_create_mount_point+0xb0/0xb0
[  598.763120][ T8082]  ? spin_bug+0x1d0/0x1d0
[  598.767554][ T8082]  ? net_namespace+0x12/0x40
[  598.772525][ T8082]  ? device_namespace+0x8d/0xc0
[  598.777568][ T8082]  kobject_add_internal+0x2c8/0x970
[  598.782802][ T8082]  kobject_add+0x16f/0x240
[  598.787449][ T8082]  ? kset_create_and_add+0x190/0x190
[  598.792771][ T8082]  ? do_raw_spin_unlock+0x173/0x230
[  598.798268][ T8082]  ? kobject_put+0xbe/0x440
[  598.803225][ T8082]  ? device_add+0xc35/0x1aa0
[  598.807943][ T8082]  device_add+0x289/0x1aa0
[  598.812920][ T8082]  ? device_initialize+0x510/0x510
[  598.818057][ T8082]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  598.825291][ T8082]  ? __init_waitqueue_head+0xca/0x150
[  598.830695][ T8082]  netdev_register_kobject+0x183/0x3f0
[  598.836429][ T8082]  register_netdevice+0xbe6/0x14b0
[  598.841825][ T8082]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  598.847732][ T8082]  ? validate_linkmsg+0x6fc/0x9c0
[  598.852777][ T8082]  br_dev_newlink+0x27/0x110
[  598.857454][ T8082]  ? br_changelink+0x1760/0x1760
[  598.862587][ T8082]  __rtnl_newlink+0x1173/0x1930
[  598.867560][ T8082]  ? rtnl_link_unregister+0x260/0x260
[  598.873318][ T8082]  rtnl_newlink+0x67/0xa0
[  598.878305][ T8082]  ? __rtnl_newlink+0x1930/0x1930
[  598.883622][ T8082]  rtnetlink_rcv_msg+0x3c7/0xe00
[  598.888572][ T8082]  ? rtnl_fill_vf+0x4a0/0x4a0
[  598.893425][ T8082]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  598.899511][ T8082]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  598.905784][ T8082]  netlink_rcv_skb+0x16b/0x440
[  598.910849][ T8082]  ? rtnl_fill_vf+0x4a0/0x4a0
[  598.915736][ T8082]  ? netlink_ack+0x1380/0x1380
[  598.920886][ T8082]  ? lock_sync+0x190/0x190
[  598.925613][ T8082]  ? netlink_deliver_tap+0x1a0/0xd00
[  598.931175][ T8082]  ? _copy_from_iter+0x2c1/0x10f0
[  598.936361][ T8082]  netlink_unicast+0x53b/0x810
[  598.941154][ T8082]  ? netlink_attachskb+0x880/0x880
[  598.946567][ T8082]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  598.952565][ T8082]  ? __phys_addr_symbol+0x30/0x70
[  598.957686][ T8082]  ? __check_object_size+0x323/0x730
[  598.963308][ T8082]  netlink_sendmsg+0x93c/0xe40
[  598.968216][ T8082]  ? netlink_unicast+0x810/0x810
[  598.973272][ T8082]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  598.978595][ T8082]  ? netlink_unicast+0x810/0x810
[  598.983643][ T8082]  __sock_sendmsg+0xd5/0x180
[  598.988250][ T8082]  ____sys_sendmsg+0x6ac/0x940
[  598.993076][ T8082]  ? copy_msghdr_from_user+0x10b/0x160
[  598.998541][ T8082]  ? kernel_sendmsg+0x50/0x50
[  599.003290][ T8082]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  599.009308][ T8082]  ___sys_sendmsg+0x135/0x1d0
[  599.014018][ T8082]  ? do_recvmmsg+0x740/0x740
[  599.018912][ T8082]  ? find_held_lock+0x2d/0x110
[  599.023727][ T8082]  ? preempt_count_sub+0x160/0x160
[  599.028883][ T8082]  ? __fget_light+0x1fc/0x260
[  599.033592][ T8082]  __sys_sendmsg+0x117/0x1e0
[  599.038218][ T8082]  ? __sys_sendmsg_sock+0x30/0x30
[  599.043272][ T8082]  ? xfd_validate_state+0x5d/0x180
[  599.048441][ T8082]  ? syscall_enter_from_user_mode+0x7f/0x120
[  599.054549][ T8082]  do_syscall_64+0x40/0x110
[  599.059152][ T8082]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  599.065246][ T8082] RIP: 0033:0x7fb700fd30b9
[  599.069770][ T8082] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  599.089825][ T8082] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  599.098712][ T8082] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  599.106884][ T8082] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  599.115229][ T8082] RBP: 0000000000091e5c R08: 0000000000000000 R09: 0000000000000006
[  599.123475][ T8082] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  599.131529][ T8082] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  599.141330][ T8082]  </TASK>
[  599.144810][ T8082] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  599.196144][ T8082] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  599.207028][ T8082] CPU: 0 PID: 8082 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  599.218099][ T8082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  599.228507][ T8082] Call Trace:
[  599.231961][ T8082]  <TASK>
[  599.234903][ T8082]  dump_stack_lvl+0x125/0x1b0
[  599.239685][ T8082]  sysfs_warn_dup+0x7f/0xa0
[  599.244282][ T8082]  sysfs_create_dir_ns+0x249/0x2b0
[  599.249500][ T8082]  ? sysfs_create_mount_point+0xb0/0xb0
[  599.255329][ T8082]  ? spin_bug+0x1d0/0x1d0
[  599.259765][ T8082]  ? net_namespace+0x12/0x40
[  599.264545][ T8082]  ? device_namespace+0x8d/0xc0
[  599.269515][ T8082]  kobject_add_internal+0x2c8/0x970
[  599.274839][ T8082]  kobject_add+0x16f/0x240
[  599.279268][ T8082]  ? kset_create_and_add+0x190/0x190
[  599.284662][ T8082]  ? do_raw_spin_unlock+0x173/0x230
[  599.289986][ T8082]  ? kobject_put+0xbe/0x440
[  599.294596][ T8082]  ? device_add+0xc35/0x1aa0
[  599.299220][ T8082]  device_add+0x289/0x1aa0
[  599.303958][ T8082]  ? device_initialize+0x510/0x510
[  599.309441][ T8082]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  599.316501][ T8082]  ? __init_waitqueue_head+0xca/0x150
[  599.322166][ T8082]  netdev_register_kobject+0x183/0x3f0
[  599.327842][ T8082]  register_netdevice+0xbe6/0x14b0
[  599.333341][ T8082]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  599.339787][ T8082]  ? validate_linkmsg+0x6fc/0x9c0
[  599.345180][ T8082]  br_dev_newlink+0x27/0x110
[  599.350223][ T8082]  ? br_changelink+0x1760/0x1760
[  599.355280][ T8082]  __rtnl_newlink+0x1173/0x1930
[  599.360212][ T8082]  ? rtnl_link_unregister+0x260/0x260
[  599.365648][ T8082]  rtnl_newlink+0x67/0xa0
[  599.370285][ T8082]  ? __rtnl_newlink+0x1930/0x1930
[  599.376011][ T8082]  rtnetlink_rcv_msg+0x3c7/0xe00
[  599.380965][ T8082]  ? rtnl_fill_vf+0x4a0/0x4a0
[  599.385678][ T8082]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  599.392030][ T8082]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  599.398123][ T8082]  netlink_rcv_skb+0x16b/0x440
[  599.402995][ T8082]  ? rtnl_fill_vf+0x4a0/0x4a0
[  599.407716][ T8082]  ? netlink_ack+0x1380/0x1380
[  599.412882][ T8082]  ? lock_sync+0x190/0x190
[  599.417707][ T8082]  ? netlink_deliver_tap+0x1a0/0xd00
[  599.423025][ T8082]  ? _copy_from_iter+0x2c1/0x10f0
[  599.428160][ T8082]  netlink_unicast+0x53b/0x810
[  599.433396][ T8082]  ? netlink_attachskb+0x880/0x880
[  599.438776][ T8082]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  599.446177][ T8082]  ? __phys_addr_symbol+0x30/0x70
[  599.451736][ T8082]  ? __check_object_size+0x323/0x730
[  599.457250][ T8082]  netlink_sendmsg+0x93c/0xe40
[  599.462641][ T8082]  ? netlink_unicast+0x810/0x810
[  599.467977][ T8082]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  599.473554][ T8082]  ? netlink_unicast+0x810/0x810
[  599.478895][ T8082]  __sock_sendmsg+0xd5/0x180
[  599.488903][ T8082]  ____sys_sendmsg+0x6ac/0x940
[  599.493784][ T8082]  ? copy_msghdr_from_user+0x10b/0x160
[  599.499918][ T8082]  ? kernel_sendmsg+0x50/0x50
[  599.504696][ T8082]  ? hlock_class+0x4e/0x130
[  599.509319][ T8082]  ? __lock_acquire+0x14e0/0x3b10
[  599.514644][ T8082]  ___sys_sendmsg+0x135/0x1d0
[  599.519606][ T8082]  ? do_recvmmsg+0x740/0x740
[  599.524585][ T8082]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  599.531822][ T8082]  ? find_held_lock+0x2d/0x110
[  599.537103][ T8082]  ? __fget_light+0x1fc/0x260
[  599.541857][ T8082]  __sys_sendmsg+0x117/0x1e0
[  599.546576][ T8082]  ? __sys_sendmsg_sock+0x30/0x30
[  599.551969][ T8082]  ? xfd_validate_state+0x5d/0x180
[  599.557644][ T8082]  ? syscall_enter_from_user_mode+0x7f/0x120
[  599.563663][ T8082]  do_syscall_64+0x40/0x110
[  599.568546][ T8082]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  599.574905][ T8082] RIP: 0033:0x7fb700fd30b9
[  599.579320][ T8082] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  599.599793][ T8082] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  599.609432][ T8082] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  599.617587][ T8082] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  599.625856][ T8082] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  599.634018][ T8082] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  599.642166][ T8082] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  599.650141][ T8082]  </TASK>
[  599.660751][ T8082] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  599.721787][ T8083] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  599.733141][ T8083] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  599.742382][ T8083] CPU: 0 PID: 8083 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  599.752974][ T8083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  599.764524][ T8083] Call Trace:
[  599.768007][ T8083]  <TASK>
[  599.771037][ T8083]  dump_stack_lvl+0x125/0x1b0
[  599.775919][ T8083]  sysfs_warn_dup+0x7f/0xa0
[  599.780553][ T8083]  sysfs_create_dir_ns+0x249/0x2b0
[  599.785858][ T8083]  ? sysfs_create_mount_point+0xb0/0xb0
[  599.791762][ T8083]  ? spin_bug+0x1d0/0x1d0
[  599.796235][ T8083]  ? net_namespace+0x12/0x40
[  599.801434][ T8083]  ? device_namespace+0x8d/0xc0
[  599.807185][ T8083]  kobject_add_internal+0x2c8/0x970
[  599.813148][ T8083]  kobject_add+0x16f/0x240
[  599.818466][ T8083]  ? kset_create_and_add+0x190/0x190
[  599.824050][ T8083]  ? do_raw_spin_unlock+0x173/0x230
[  599.829612][ T8083]  ? kobject_put+0xbe/0x440
[  599.834173][ T8083]  ? device_add+0xc35/0x1aa0
[  599.838886][ T8083]  device_add+0x289/0x1aa0
[  599.843682][ T8083]  ? device_initialize+0x510/0x510
[  599.849182][ T8083]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  599.856607][ T8083]  ? __init_waitqueue_head+0xca/0x150
[  599.862242][ T8083]  netdev_register_kobject+0x183/0x3f0
[  599.867853][ T8083]  register_netdevice+0xbe6/0x14b0
[  599.873267][ T8083]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  599.879892][ T8083]  ? validate_linkmsg+0x6fc/0x9c0
[  599.884941][ T8083]  br_dev_newlink+0x27/0x110
[  599.889584][ T8083]  ? br_changelink+0x1760/0x1760
[  599.895241][ T8083]  __rtnl_newlink+0x1173/0x1930
[  599.900552][ T8083]  ? rtnl_link_unregister+0x260/0x260
[  599.906314][ T8083]  rtnl_newlink+0x67/0xa0
[  599.911375][ T8083]  ? __rtnl_newlink+0x1930/0x1930
[  599.916519][ T8083]  rtnetlink_rcv_msg+0x3c7/0xe00
[  599.921509][ T8083]  ? rtnl_fill_vf+0x4a0/0x4a0
[  599.926428][ T8083]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  599.932463][ T8083]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  599.938846][ T8083]  netlink_rcv_skb+0x16b/0x440
[  599.943660][ T8083]  ? rtnl_fill_vf+0x4a0/0x4a0
[  599.948926][ T8083]  ? netlink_ack+0x1380/0x1380
[  599.953913][ T8083]  ? lock_sync+0x190/0x190
[  599.958980][ T8083]  ? netlink_deliver_tap+0x1a0/0xd00
[  599.964713][ T8083]  ? _copy_from_iter+0x2c1/0x10f0
[  599.970445][ T8083]  netlink_unicast+0x53b/0x810
[  599.975339][ T8083]  ? netlink_attachskb+0x880/0x880
[  599.980767][ T8083]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  599.987384][ T8083]  ? __phys_addr_symbol+0x30/0x70
[  599.992608][ T8083]  ? __check_object_size+0x323/0x730
[  599.998107][ T8083]  netlink_sendmsg+0x93c/0xe40
[  600.005450][ T8083]  ? netlink_unicast+0x810/0x810
[  600.011220][ T8083]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  600.016911][ T8083]  ? netlink_unicast+0x810/0x810
[  600.022173][ T8083]  __sock_sendmsg+0xd5/0x180
[  600.026788][ T8083]  ____sys_sendmsg+0x6ac/0x940
[  600.031562][ T8083]  ? copy_msghdr_from_user+0x10b/0x160
[  600.037187][ T8083]  ? kernel_sendmsg+0x50/0x50
[  600.041879][ T8083]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  600.048310][ T8083]  ___sys_sendmsg+0x135/0x1d0
[  600.053085][ T8083]  ? do_recvmmsg+0x740/0x740
[  600.057788][ T8083]  ? find_held_lock+0x2d/0x110
[  600.062570][ T8083]  ? preempt_count_sub+0x160/0x160
[  600.067873][ T8083]  ? __fget_light+0x1fc/0x260
[  600.072603][ T8083]  __sys_sendmsg+0x117/0x1e0
[  600.077397][ T8083]  ? __sys_sendmsg_sock+0x30/0x30
[  600.083061][ T8083]  ? syscall_enter_from_user_mode+0x7f/0x120
[  600.089062][ T8083]  do_syscall_64+0x40/0x110
[  600.093855][ T8083]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  600.099848][ T8083] RIP: 0033:0x7fb700fd30b9
[  600.104375][ T8083] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  600.125728][ T8083] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  600.134330][ T8083] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  600.142654][ T8083] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  600.152292][ T8083] RBP: 0000000000092277 R08: 0000000000000000 R09: 0000000000000006
[  600.160611][ T8083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  600.168842][ T8083] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  600.177126][ T8083]  </TASK>
[  600.181765][ T8083] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  600.246076][ T8083] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  600.256294][ T8083] CPU: 0 PID: 8083 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  600.266461][ T8083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  600.276694][ T8083] Call Trace:
[  600.280413][ T8083]  <TASK>
[  600.283443][ T8083]  dump_stack_lvl+0x125/0x1b0
[  600.288247][ T8083]  sysfs_warn_dup+0x7f/0xa0
[  600.292859][ T8083]  sysfs_create_dir_ns+0x249/0x2b0
[  600.298165][ T8083]  ? sysfs_create_mount_point+0xb0/0xb0
[  600.303974][ T8083]  ? spin_bug+0x1d0/0x1d0
[  600.308400][ T8083]  ? net_namespace+0x12/0x40
[  600.313441][ T8083]  ? device_namespace+0x8d/0xc0
[  600.318405][ T8083]  kobject_add_internal+0x2c8/0x970
[  600.323825][ T8083]  kobject_add+0x16f/0x240
[  600.328617][ T8083]  ? kset_create_and_add+0x190/0x190
[  600.334108][ T8083]  ? do_raw_spin_unlock+0x173/0x230
[  600.339322][ T8083]  ? kobject_put+0xbe/0x440
[  600.344024][ T8083]  ? device_add+0xc35/0x1aa0
[  600.348911][ T8083]  device_add+0x289/0x1aa0
[  600.353606][ T8083]  ? device_initialize+0x510/0x510
[  600.358736][ T8083]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  600.365705][ T8083]  ? __init_waitqueue_head+0xca/0x150
[  600.371128][ T8083]  netdev_register_kobject+0x183/0x3f0
[  600.376950][ T8083]  register_netdevice+0xbe6/0x14b0
[  600.382160][ T8083]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  600.388240][ T8083]  ? validate_linkmsg+0x6fc/0x9c0
[  600.393534][ T8083]  br_dev_newlink+0x27/0x110
[  600.398302][ T8083]  ? br_changelink+0x1760/0x1760
[  600.403330][ T8083]  __rtnl_newlink+0x1173/0x1930
[  600.408559][ T8083]  ? rtnl_link_unregister+0x260/0x260
[  600.414051][ T8083]  rtnl_newlink+0x67/0xa0
[  600.418580][ T8083]  ? __rtnl_newlink+0x1930/0x1930
[  600.424020][ T8083]  rtnetlink_rcv_msg+0x3c7/0xe00
[  600.428976][ T8083]  ? rtnl_fill_vf+0x4a0/0x4a0
[  600.433835][ T8083]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  600.440520][ T8083]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  600.446606][ T8083]  netlink_rcv_skb+0x16b/0x440
[  600.451447][ T8083]  ? rtnl_fill_vf+0x4a0/0x4a0
[  600.456138][ T8083]  ? netlink_ack+0x1380/0x1380
[  600.461116][ T8083]  ? lock_sync+0x190/0x190
[  600.465661][ T8083]  ? netlink_deliver_tap+0x1a0/0xd00
[  600.471150][ T8083]  ? _copy_from_iter+0x2c1/0x10f0
[  600.477431][ T8083]  netlink_unicast+0x53b/0x810
[  600.482411][ T8083]  ? netlink_attachskb+0x880/0x880
[  600.487632][ T8083]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  600.493823][ T8083]  ? __phys_addr_symbol+0x30/0x70
[  600.499222][ T8083]  ? __check_object_size+0x323/0x730
[  600.504713][ T8083]  netlink_sendmsg+0x93c/0xe40
[  600.509696][ T8083]  ? netlink_unicast+0x810/0x810
[  600.515033][ T8083]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  600.520601][ T8083]  ? netlink_unicast+0x810/0x810
[  600.525773][ T8083]  __sock_sendmsg+0xd5/0x180
[  600.530559][ T8083]  ____sys_sendmsg+0x6ac/0x940
[  600.535503][ T8083]  ? copy_msghdr_from_user+0x10b/0x160
[  600.541159][ T8083]  ? kernel_sendmsg+0x50/0x50
[  600.546303][ T8083]  ? hlock_class+0x4e/0x130
[  600.551323][ T8083]  ? __lock_acquire+0x14e0/0x3b10
[  600.556641][ T8083]  ___sys_sendmsg+0x135/0x1d0
[  600.561706][ T8083]  ? do_recvmmsg+0x740/0x740
[  600.566401][ T8083]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  600.572479][ T8083]  ? find_held_lock+0x2d/0x110
[  600.577365][ T8083]  ? __fget_light+0x1fc/0x260
[  600.582131][ T8083]  __sys_sendmsg+0x117/0x1e0
[  600.586906][ T8083]  ? __sys_sendmsg_sock+0x30/0x30
[  600.591939][ T8083]  ? __do_sys_rseq+0x750/0x750
[  600.596810][ T8083]  ? syscall_enter_from_user_mode+0x7f/0x120
[  600.603090][ T8083]  do_syscall_64+0x40/0x110
[  600.610655][ T8083]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  600.616838][ T8083] RIP: 0033:0x7fb700fd30b9
[  600.621602][ T8083] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  600.642005][ T8083] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  600.650789][ T8083] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  600.659055][ T8083] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  600.667620][ T8083] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  600.676228][ T8083] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  600.684552][ T8083] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  600.692862][ T8083]  </TASK>
[  600.696534][ T8083] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  600.752180][ T8084] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  600.763331][ T8084] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  600.773306][ T8084] CPU: 1 PID: 8084 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  600.783832][ T8084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  600.794461][ T8084] Call Trace:
[  600.797738][ T8084]  <TASK>
[  600.800661][ T8084]  dump_stack_lvl+0x125/0x1b0
[  600.805427][ T8084]  sysfs_warn_dup+0x7f/0xa0
[  600.810138][ T8084]  sysfs_create_dir_ns+0x249/0x2b0
[  600.815341][ T8084]  ? sysfs_create_mount_point+0xb0/0xb0
[  600.820976][ T8084]  ? spin_bug+0x1d0/0x1d0
[  600.825395][ T8084]  ? net_namespace+0x12/0x40
[  600.830098][ T8084]  ? device_namespace+0x8d/0xc0
[  600.835165][ T8084]  kobject_add_internal+0x2c8/0x970
[  600.840561][ T8084]  kobject_add+0x16f/0x240
[  600.844994][ T8084]  ? kset_create_and_add+0x190/0x190
[  600.850284][ T8084]  ? do_raw_spin_unlock+0x173/0x230
[  600.855592][ T8084]  ? kobject_put+0xbe/0x440
[  600.860110][ T8084]  ? device_add+0xc35/0x1aa0
[  600.864701][ T8084]  device_add+0x289/0x1aa0
[  600.869206][ T8084]  ? device_initialize+0x510/0x510
[  600.874333][ T8084]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  600.881536][ T8084]  ? __init_waitqueue_head+0xca/0x150
[  600.886916][ T8084]  netdev_register_kobject+0x183/0x3f0
[  600.892567][ T8084]  register_netdevice+0xbe6/0x14b0
[  600.897951][ T8084]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  600.904203][ T8084]  ? validate_linkmsg+0x6fc/0x9c0
[  600.909839][ T8084]  br_dev_newlink+0x27/0x110
[  600.914625][ T8084]  ? br_changelink+0x1760/0x1760
[  600.919570][ T8084]  __rtnl_newlink+0x1173/0x1930
[  600.924539][ T8084]  ? rtnl_link_unregister+0x260/0x260
[  600.930308][ T8084]  rtnl_newlink+0x67/0xa0
[  600.935076][ T8084]  ? __rtnl_newlink+0x1930/0x1930
[  600.940285][ T8084]  rtnetlink_rcv_msg+0x3c7/0xe00
[  600.945228][ T8084]  ? rtnl_fill_vf+0x4a0/0x4a0
[  600.950363][ T8084]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  600.956647][ T8084]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  600.962745][ T8084]  netlink_rcv_skb+0x16b/0x440
[  600.967526][ T8084]  ? rtnl_fill_vf+0x4a0/0x4a0
[  600.972210][ T8084]  ? netlink_ack+0x1380/0x1380
[  600.977156][ T8084]  ? lock_sync+0x190/0x190
[  600.981677][ T8084]  ? netlink_deliver_tap+0x1a0/0xd00
[  600.986968][ T8084]  ? _copy_from_iter+0x2c1/0x10f0
[  600.992001][ T8084]  netlink_unicast+0x53b/0x810
[  600.996776][ T8084]  ? netlink_attachskb+0x880/0x880
[  601.002073][ T8084]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  601.008149][ T8084]  ? __phys_addr_symbol+0x30/0x70
[  601.013260][ T8084]  ? __check_object_size+0x323/0x730
[  601.018680][ T8084]  netlink_sendmsg+0x93c/0xe40
[  601.023472][ T8084]  ? netlink_unicast+0x810/0x810
[  601.028429][ T8084]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  601.033736][ T8084]  ? netlink_unicast+0x810/0x810
[  601.038785][ T8084]  __sock_sendmsg+0xd5/0x180
[  601.043471][ T8084]  ____sys_sendmsg+0x6ac/0x940
[  601.048486][ T8084]  ? copy_msghdr_from_user+0x10b/0x160
[  601.054120][ T8084]  ? kernel_sendmsg+0x50/0x50
[  601.058906][ T8084]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  601.064915][ T8084]  ___sys_sendmsg+0x135/0x1d0
[  601.069799][ T8084]  ? do_recvmmsg+0x740/0x740
[  601.074483][ T8084]  ? find_held_lock+0x2d/0x110
[  601.079443][ T8084]  ? preempt_count_sub+0x160/0x160
[  601.084743][ T8084]  ? __fget_light+0x1fc/0x260
[  601.089770][ T8084]  __sys_sendmsg+0x117/0x1e0
[  601.094949][ T8084]  ? __sys_sendmsg_sock+0x30/0x30
[  601.100455][ T8084]  ? xfd_validate_state+0x5d/0x180
[  601.105870][ T8084]  ? syscall_enter_from_user_mode+0x7f/0x120
[  601.112498][ T8084]  do_syscall_64+0x40/0x110
[  601.117638][ T8084]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  601.123747][ T8084] RIP: 0033:0x7fb700fd30b9
[  601.128506][ T8084] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  601.150039][ T8084] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  601.159073][ T8084] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  601.167413][ T8084] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  601.175393][ T8084] RBP: 000000000009267c R08: 0000000000000000 R09: 0000000000000006
[  601.183561][ T8084] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  601.191671][ T8084] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  601.199825][ T8084]  </TASK>
[  601.205499][ T8084] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  601.258294][ T8084] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  601.267696][ T8084] CPU: 0 PID: 8084 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  601.277894][ T8084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  601.287949][ T8084] Call Trace:
[  601.291222][ T8084]  <TASK>
[  601.294322][ T8084]  dump_stack_lvl+0x125/0x1b0
[  601.299109][ T8084]  sysfs_warn_dup+0x7f/0xa0
[  601.303709][ T8084]  sysfs_create_dir_ns+0x249/0x2b0
[  601.308959][ T8084]  ? sysfs_create_mount_point+0xb0/0xb0
[  601.314696][ T8084]  ? spin_bug+0x1d0/0x1d0
[  601.320262][ T8084]  ? net_namespace+0x12/0x40
[  601.324915][ T8084]  ? device_namespace+0x8d/0xc0
[  601.329953][ T8084]  kobject_add_internal+0x2c8/0x970
[  601.335243][ T8084]  kobject_add+0x16f/0x240
[  601.340019][ T8084]  ? kset_create_and_add+0x190/0x190
[  601.345565][ T8084]  ? do_raw_spin_unlock+0x173/0x230
[  601.350944][ T8084]  ? kobject_put+0xbe/0x440
[  601.355467][ T8084]  ? device_add+0xc35/0x1aa0
[  601.360089][ T8084]  device_add+0x289/0x1aa0
[  601.364504][ T8084]  ? device_initialize+0x510/0x510
[  601.369744][ T8084]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  601.376768][ T8084]  ? __init_waitqueue_head+0xca/0x150
[  601.382341][ T8084]  netdev_register_kobject+0x183/0x3f0
[  601.388267][ T8084]  register_netdevice+0xbe6/0x14b0
[  601.393470][ T8084]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  601.399449][ T8084]  ? validate_linkmsg+0x6fc/0x9c0
[  601.404837][ T8084]  br_dev_newlink+0x27/0x110
[  601.409528][ T8084]  ? br_changelink+0x1760/0x1760
[  601.414549][ T8084]  __rtnl_newlink+0x1173/0x1930
[  601.419495][ T8084]  ? rtnl_link_unregister+0x260/0x260
[  601.424979][ T8084]  rtnl_newlink+0x67/0xa0
[  601.429579][ T8084]  ? __rtnl_newlink+0x1930/0x1930
[  601.434687][ T8084]  rtnetlink_rcv_msg+0x3c7/0xe00
[  601.439700][ T8084]  ? rtnl_fill_vf+0x4a0/0x4a0
[  601.444413][ T8084]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  601.451252][ T8084]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  601.457652][ T8084]  netlink_rcv_skb+0x16b/0x440
[  601.462580][ T8084]  ? rtnl_fill_vf+0x4a0/0x4a0
[  601.467560][ T8084]  ? netlink_ack+0x1380/0x1380
[  601.472594][ T8084]  ? lock_sync+0x190/0x190
[  601.477297][ T8084]  ? netlink_deliver_tap+0x1a0/0xd00
[  601.482583][ T8084]  ? _copy_from_iter+0x2c1/0x10f0
[  601.487725][ T8084]  netlink_unicast+0x53b/0x810
[  601.492517][ T8084]  ? netlink_attachskb+0x880/0x880
[  601.497978][ T8084]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  601.503912][ T8084]  ? __phys_addr_symbol+0x30/0x70
[  601.509122][ T8084]  ? __check_object_size+0x323/0x730
[  601.515021][ T8084]  netlink_sendmsg+0x93c/0xe40
[  601.519886][ T8084]  ? netlink_unicast+0x810/0x810
[  601.525193][ T8084]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  601.530488][ T8084]  ? netlink_unicast+0x810/0x810
[  601.535894][ T8084]  __sock_sendmsg+0xd5/0x180
[  601.540959][ T8084]  ____sys_sendmsg+0x6ac/0x940
[  601.545894][ T8084]  ? copy_msghdr_from_user+0x10b/0x160
[  601.551746][ T8084]  ? kernel_sendmsg+0x50/0x50
[  601.556532][ T8084]  ___sys_sendmsg+0x135/0x1d0
[  601.561997][ T8084]  ? do_recvmmsg+0x740/0x740
[  601.568702][ T8084]  ? find_held_lock+0x2d/0x110
[  601.573574][ T8084]  ? preempt_count_sub+0x160/0x160
[  601.578775][ T8084]  ? __fget_light+0x1fc/0x260
[  601.583913][ T8084]  __sys_sendmsg+0x117/0x1e0
[  601.588506][ T8084]  ? __sys_sendmsg_sock+0x30/0x30
[  601.593535][ T8084]  ? syscall_enter_from_user_mode+0x7f/0x120
[  601.599629][ T8084]  do_syscall_64+0x40/0x110
[  601.604184][ T8084]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  601.610283][ T8084] RIP: 0033:0x7fb700fd30b9
[  601.614722][ T8084] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  601.635278][ T8084] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  601.644565][ T8084] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  601.652740][ T8084] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  601.660822][ T8084] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  601.669167][ T8084] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  601.677166][ T8084] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  601.685380][ T8084]  </TASK>
[  601.689030][ T8084] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  601.770487][ T8085] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  601.781588][ T8085] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  601.790892][ T8085] CPU: 1 PID: 8085 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  601.801281][ T8085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  601.812054][ T8085] Call Trace:
[  601.815341][ T8085]  <TASK>
[  601.818269][ T8085]  dump_stack_lvl+0x125/0x1b0
[  601.823079][ T8085]  sysfs_warn_dup+0x7f/0xa0
[  601.828235][ T8085]  sysfs_create_dir_ns+0x249/0x2b0
[  601.833529][ T8085]  ? sysfs_create_mount_point+0xb0/0xb0
[  601.839083][ T8085]  ? spin_bug+0x1d0/0x1d0
[  601.843855][ T8085]  ? net_namespace+0x12/0x40
[  601.848806][ T8085]  ? device_namespace+0x8d/0xc0
[  601.853767][ T8085]  kobject_add_internal+0x2c8/0x970
[  601.859010][ T8085]  kobject_add+0x16f/0x240
[  601.863448][ T8085]  ? kset_create_and_add+0x190/0x190
[  601.868737][ T8085]  ? do_raw_spin_unlock+0x173/0x230
[  601.874024][ T8085]  ? kobject_put+0xbe/0x440
[  601.878531][ T8085]  ? device_add+0xc35/0x1aa0
[  601.883319][ T8085]  device_add+0x289/0x1aa0
[  601.887736][ T8085]  ? device_initialize+0x510/0x510
[  601.892977][ T8085]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  601.899973][ T8085]  ? __init_waitqueue_head+0xca/0x150
[  601.905477][ T8085]  netdev_register_kobject+0x183/0x3f0
[  601.911344][ T8085]  register_netdevice+0xbe6/0x14b0
[  601.916667][ T8085]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  601.922581][ T8085]  ? validate_linkmsg+0x6fc/0x9c0
[  601.927616][ T8085]  br_dev_newlink+0x27/0x110
[  601.932303][ T8085]  ? br_changelink+0x1760/0x1760
[  601.937340][ T8085]  __rtnl_newlink+0x1173/0x1930
[  601.942300][ T8085]  ? rtnl_link_unregister+0x260/0x260
[  601.947703][ T8085]  rtnl_newlink+0x67/0xa0
[  601.952222][ T8085]  ? __rtnl_newlink+0x1930/0x1930
[  601.957436][ T8085]  rtnetlink_rcv_msg+0x3c7/0xe00
[  601.962589][ T8085]  ? rtnl_fill_vf+0x4a0/0x4a0
[  601.967372][ T8085]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  601.973452][ T8085]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  601.979653][ T8085]  netlink_rcv_skb+0x16b/0x440
[  601.984513][ T8085]  ? rtnl_fill_vf+0x4a0/0x4a0
[  601.989198][ T8085]  ? netlink_ack+0x1380/0x1380
[  601.994051][ T8085]  ? lock_sync+0x190/0x190
[  601.998492][ T8085]  ? netlink_deliver_tap+0x1a0/0xd00
[  602.003811][ T8085]  ? _copy_from_iter+0x2c1/0x10f0
[  602.008848][ T8085]  netlink_unicast+0x53b/0x810
[  602.013630][ T8085]  ? netlink_attachskb+0x880/0x880
[  602.018745][ T8085]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  602.025006][ T8085]  ? __phys_addr_symbol+0x30/0x70
[  602.030603][ T8085]  ? __check_object_size+0x323/0x730
[  602.036080][ T8085]  netlink_sendmsg+0x93c/0xe40
[  602.041227][ T8085]  ? netlink_unicast+0x810/0x810
[  602.047077][ T8085]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  602.053794][ T8085]  ? netlink_unicast+0x810/0x810
[  602.059109][ T8085]  __sock_sendmsg+0xd5/0x180
[  602.064189][ T8085]  ____sys_sendmsg+0x6ac/0x940
[  602.069673][ T8085]  ? copy_msghdr_from_user+0x10b/0x160
[  602.075592][ T8085]  ? kernel_sendmsg+0x50/0x50
[  602.080653][ T8085]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  602.087201][ T8085]  ___sys_sendmsg+0x135/0x1d0
[  602.091913][ T8085]  ? do_recvmmsg+0x740/0x740
[  602.096726][ T8085]  ? find_held_lock+0x2d/0x110
[  602.102061][ T8085]  ? preempt_count_sub+0x160/0x160
[  602.107712][ T8085]  ? __fget_light+0x1fc/0x260
[  602.113036][ T8085]  __sys_sendmsg+0x117/0x1e0
[  602.118685][ T8085]  ? __sys_sendmsg_sock+0x30/0x30
[  602.124518][ T8085]  ? xfd_validate_state+0x5d/0x180
[  602.129661][ T8085]  ? syscall_enter_from_user_mode+0x7f/0x120
[  602.135844][ T8085]  do_syscall_64+0x40/0x110
[  602.140471][ T8085]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  602.146924][ T8085] RIP: 0033:0x7fb700fd30b9
[  602.151354][ T8085] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  602.171325][ T8085] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  602.180373][ T8085] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  602.188531][ T8085] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  602.197032][ T8085] RBP: 0000000000092a83 R08: 0000000000000000 R09: 0000000000000006
[  602.205275][ T8085] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  602.214159][ T8085] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  602.222937][ T8085]  </TASK>
[  602.227899][ T8085] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  602.296845][ T8085] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  602.306166][ T8085] CPU: 0 PID: 8085 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  602.317236][ T8085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  602.327312][ T8085] Call Trace:
[  602.330701][ T8085]  <TASK>
[  602.333900][ T8085]  dump_stack_lvl+0x125/0x1b0
[  602.338756][ T8085]  sysfs_warn_dup+0x7f/0xa0
[  602.344509][ T8085]  sysfs_create_dir_ns+0x249/0x2b0
[  602.349751][ T8085]  ? sysfs_create_mount_point+0xb0/0xb0
[  602.355532][ T8085]  ? spin_bug+0x1d0/0x1d0
[  602.359995][ T8085]  ? net_namespace+0x12/0x40
[  602.364870][ T8085]  ? device_namespace+0x8d/0xc0
[  602.369933][ T8085]  kobject_add_internal+0x2c8/0x970
[  602.375409][ T8085]  kobject_add+0x16f/0x240
[  602.379934][ T8085]  ? kset_create_and_add+0x190/0x190
[  602.385419][ T8085]  ? do_raw_spin_unlock+0x173/0x230
[  602.390921][ T8085]  ? kobject_put+0xbe/0x440
[  602.395437][ T8085]  ? device_add+0xc35/0x1aa0
[  602.400160][ T8085]  device_add+0x289/0x1aa0
[  602.404881][ T8085]  ? device_initialize+0x510/0x510
[  602.410019][ T8085]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  602.416982][ T8085]  ? __init_waitqueue_head+0xca/0x150
[  602.422383][ T8085]  netdev_register_kobject+0x183/0x3f0
[  602.428699][ T8085]  register_netdevice+0xbe6/0x14b0
[  602.434102][ T8085]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  602.440087][ T8085]  ? validate_linkmsg+0x6fc/0x9c0
[  602.445129][ T8085]  br_dev_newlink+0x27/0x110
[  602.449926][ T8085]  ? br_changelink+0x1760/0x1760
[  602.455134][ T8085]  __rtnl_newlink+0x1173/0x1930
[  602.460295][ T8085]  ? rtnl_link_unregister+0x260/0x260
[  602.465955][ T8085]  rtnl_newlink+0x67/0xa0
[  602.470507][ T8085]  ? __rtnl_newlink+0x1930/0x1930
[  602.475897][ T8085]  rtnetlink_rcv_msg+0x3c7/0xe00
[  602.480950][ T8085]  ? rtnl_fill_vf+0x4a0/0x4a0
[  602.485732][ T8085]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  602.491819][ T8085]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  602.497993][ T8085]  netlink_rcv_skb+0x16b/0x440
[  602.502927][ T8085]  ? rtnl_fill_vf+0x4a0/0x4a0
[  602.507757][ T8085]  ? netlink_ack+0x1380/0x1380
[  602.512618][ T8085]  ? lock_sync+0x190/0x190
[  602.517076][ T8085]  ? netlink_deliver_tap+0x1a0/0xd00
[  602.522736][ T8085]  ? _copy_from_iter+0x2c1/0x10f0
[  602.528045][ T8085]  netlink_unicast+0x53b/0x810
[  602.532826][ T8085]  ? netlink_attachskb+0x880/0x880
[  602.538374][ T8085]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  602.544458][ T8085]  ? __phys_addr_symbol+0x30/0x70
[  602.550006][ T8085]  ? __check_object_size+0x323/0x730
[  602.555557][ T8085]  netlink_sendmsg+0x93c/0xe40
[  602.560330][ T8085]  ? netlink_unicast+0x810/0x810
[  602.566254][ T8085]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  602.571652][ T8085]  ? netlink_unicast+0x810/0x810
[  602.576954][ T8085]  __sock_sendmsg+0xd5/0x180
[  602.581981][ T8085]  ____sys_sendmsg+0x6ac/0x940
[  602.586754][ T8085]  ? copy_msghdr_from_user+0x10b/0x160
[  602.592562][ T8085]  ? kernel_sendmsg+0x50/0x50
[  602.597426][ T8085]  ___sys_sendmsg+0x135/0x1d0
[  602.602288][ T8085]  ? do_recvmmsg+0x740/0x740
[  602.607165][ T8085]  ? find_held_lock+0x2d/0x110
[  602.612117][ T8085]  ? preempt_count_sub+0x160/0x160
[  602.617464][ T8085]  ? __fget_light+0x1fc/0x260
[  602.622328][ T8085]  __sys_sendmsg+0x117/0x1e0
[  602.626929][ T8085]  ? __sys_sendmsg_sock+0x30/0x30
[  602.631980][ T8085]  ? syscall_enter_from_user_mode+0x7f/0x120
[  602.637965][ T8085]  do_syscall_64+0x40/0x110
[  602.642477][ T8085]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  602.648462][ T8085] RIP: 0033:0x7fb700fd30b9
[  602.652870][ T8085] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  602.672753][ T8085] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  602.681624][ T8085] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  602.689723][ T8085] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  602.697986][ T8085] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  602.706418][ T8085] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  602.714487][ T8085] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  602.722666][ T8085]  </TASK>
[  602.726901][ T8085] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  602.780978][ T8086] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  602.792326][ T8086] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  602.801689][ T8086] CPU: 0 PID: 8086 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  602.812251][ T8086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  602.823008][ T8086] Call Trace:
[  602.826373][ T8086]  <TASK>
[  602.829561][ T8086]  dump_stack_lvl+0x125/0x1b0
[  602.834248][ T8086]  sysfs_warn_dup+0x7f/0xa0
[  602.839134][ T8086]  sysfs_create_dir_ns+0x249/0x2b0
[  602.844525][ T8086]  ? sysfs_create_mount_point+0xb0/0xb0
[  602.850196][ T8086]  ? spin_bug+0x1d0/0x1d0
[  602.854540][ T8086]  ? net_namespace+0x12/0x40
[  602.859584][ T8086]  ? device_namespace+0x8d/0xc0
[  602.864634][ T8086]  kobject_add_internal+0x2c8/0x970
[  602.869857][ T8086]  kobject_add+0x16f/0x240
[  602.874488][ T8086]  ? kset_create_and_add+0x190/0x190
[  602.879785][ T8086]  ? do_raw_spin_unlock+0x173/0x230
[  602.885041][ T8086]  ? kobject_put+0xbe/0x440
[  602.889727][ T8086]  ? device_add+0xc35/0x1aa0
[  602.894408][ T8086]  device_add+0x289/0x1aa0
[  602.898927][ T8086]  ? device_initialize+0x510/0x510
[  602.904400][ T8086]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  602.911444][ T8086]  ? __init_waitqueue_head+0xca/0x150
[  602.917747][ T8086]  netdev_register_kobject+0x183/0x3f0
[  602.923517][ T8086]  register_netdevice+0xbe6/0x14b0
[  602.929006][ T8086]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  602.935942][ T8086]  ? validate_linkmsg+0x6fc/0x9c0
[  602.941347][ T8086]  br_dev_newlink+0x27/0x110
[  602.946318][ T8086]  ? br_changelink+0x1760/0x1760
[  602.951939][ T8086]  __rtnl_newlink+0x1173/0x1930
[  602.957621][ T8086]  ? rtnl_link_unregister+0x260/0x260
[  602.964082][ T8086]  rtnl_newlink+0x67/0xa0
[  602.969000][ T8086]  ? __rtnl_newlink+0x1930/0x1930
[  602.974310][ T8086]  rtnetlink_rcv_msg+0x3c7/0xe00
[  602.979511][ T8086]  ? rtnl_fill_vf+0x4a0/0x4a0
[  602.984299][ T8086]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  602.991185][ T8086]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  602.997957][ T8086]  netlink_rcv_skb+0x16b/0x440
[  603.003199][ T8086]  ? rtnl_fill_vf+0x4a0/0x4a0
[  603.007920][ T8086]  ? netlink_ack+0x1380/0x1380
[  603.012697][ T8086]  ? lock_sync+0x190/0x190
[  603.017209][ T8086]  ? netlink_deliver_tap+0x1a0/0xd00
[  603.022681][ T8086]  ? _copy_from_iter+0x2c1/0x10f0
[  603.027903][ T8086]  netlink_unicast+0x53b/0x810
[  603.032773][ T8086]  ? netlink_attachskb+0x880/0x880
[  603.037976][ T8086]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  603.044731][ T8086]  ? __phys_addr_symbol+0x30/0x70
[  603.049791][ T8086]  ? __check_object_size+0x323/0x730
[  603.055477][ T8086]  netlink_sendmsg+0x93c/0xe40
[  603.060263][ T8086]  ? netlink_unicast+0x810/0x810
[  603.065391][ T8086]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  603.070952][ T8086]  ? netlink_unicast+0x810/0x810
[  603.076007][ T8086]  __sock_sendmsg+0xd5/0x180
[  603.080617][ T8086]  ____sys_sendmsg+0x6ac/0x940
[  603.085395][ T8086]  ? copy_msghdr_from_user+0x10b/0x160
[  603.091493][ T8086]  ? kernel_sendmsg+0x50/0x50
[  603.096700][ T8086]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  603.102879][ T8086]  ___sys_sendmsg+0x135/0x1d0
[  603.108045][ T8086]  ? do_recvmmsg+0x740/0x740
[  603.112823][ T8086]  ? find_held_lock+0x2d/0x110
[  603.117743][ T8086]  ? preempt_count_sub+0x160/0x160
[  603.122872][ T8086]  ? __fget_light+0x1fc/0x260
[  603.127658][ T8086]  __sys_sendmsg+0x117/0x1e0
[  603.132280][ T8086]  ? __sys_sendmsg_sock+0x30/0x30
[  603.137339][ T8086]  ? xfd_validate_state+0x5d/0x180
[  603.142929][ T8086]  ? syscall_enter_from_user_mode+0x7f/0x120
[  603.149110][ T8086]  do_syscall_64+0x40/0x110
[  603.153908][ T8086]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  603.159913][ T8086] RIP: 0033:0x7fb700fd30b9
[  603.164528][ T8086] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  603.184601][ T8086] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  603.193013][ T8086] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  603.201164][ T8086] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  603.209831][ T8086] RBP: 0000000000092e7d R08: 0000000000000000 R09: 0000000000000006
[  603.217895][ T8086] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  603.226048][ T8086] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  603.234047][ T8086]  </TASK>
[  603.237739][ T8086] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  603.296197][ T8086] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  603.305513][ T8086] CPU: 0 PID: 8086 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  603.315840][ T8086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  603.326069][ T8086] Call Trace:
[  603.329372][ T8086]  <TASK>
[  603.332695][ T8086]  dump_stack_lvl+0x125/0x1b0
[  603.337502][ T8086]  sysfs_warn_dup+0x7f/0xa0
[  603.342547][ T8086]  sysfs_create_dir_ns+0x249/0x2b0
[  603.347712][ T8086]  ? sysfs_create_mount_point+0xb0/0xb0
[  603.353708][ T8086]  ? spin_bug+0x1d0/0x1d0
[  603.358126][ T8086]  ? net_namespace+0x12/0x40
[  603.363172][ T8086]  ? device_namespace+0x8d/0xc0
[  603.368080][ T8086]  kobject_add_internal+0x2c8/0x970
[  603.373557][ T8086]  kobject_add+0x16f/0x240
[  603.378238][ T8086]  ? kset_create_and_add+0x190/0x190
[  603.383842][ T8086]  ? do_raw_spin_unlock+0x173/0x230
[  603.389039][ T8086]  ? kobject_put+0xbe/0x440
[  603.393808][ T8086]  ? device_add+0xc35/0x1aa0
[  603.398421][ T8086]  device_add+0x289/0x1aa0
[  603.402954][ T8086]  ? device_initialize+0x510/0x510
[  603.408192][ T8086]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  603.415080][ T8086]  ? __init_waitqueue_head+0xca/0x150
[  603.420482][ T8086]  netdev_register_kobject+0x183/0x3f0
[  603.426050][ T8086]  register_netdevice+0xbe6/0x14b0
[  603.431367][ T8086]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  603.437279][ T8086]  ? validate_linkmsg+0x6fc/0x9c0
[  603.442428][ T8086]  br_dev_newlink+0x27/0x110
[  603.447096][ T8086]  ? br_changelink+0x1760/0x1760
[  603.452398][ T8086]  __rtnl_newlink+0x1173/0x1930
[  603.457353][ T8086]  ? rtnl_link_unregister+0x260/0x260
[  603.463092][ T8086]  rtnl_newlink+0x67/0xa0
[  603.467598][ T8086]  ? __rtnl_newlink+0x1930/0x1930
[  603.472803][ T8086]  rtnetlink_rcv_msg+0x3c7/0xe00
[  603.477841][ T8086]  ? rtnl_fill_vf+0x4a0/0x4a0
[  603.482717][ T8086]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  603.488704][ T8086]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  603.494789][ T8086]  netlink_rcv_skb+0x16b/0x440
[  603.499804][ T8086]  ? rtnl_fill_vf+0x4a0/0x4a0
[  603.504572][ T8086]  ? netlink_ack+0x1380/0x1380
[  603.509515][ T8086]  ? lock_sync+0x190/0x190
[  603.514051][ T8086]  ? netlink_deliver_tap+0x1a0/0xd00
[  603.519460][ T8086]  ? _copy_from_iter+0x2c1/0x10f0
[  603.524577][ T8086]  netlink_unicast+0x53b/0x810
[  603.529542][ T8086]  ? netlink_attachskb+0x880/0x880
[  603.534796][ T8086]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  603.540794][ T8086]  ? __phys_addr_symbol+0x30/0x70
[  603.545862][ T8086]  ? __check_object_size+0x323/0x730
[  603.551799][ T8086]  netlink_sendmsg+0x93c/0xe40
[  603.557243][ T8086]  ? netlink_unicast+0x810/0x810
[  603.562216][ T8086]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  603.567800][ T8086]  ? netlink_unicast+0x810/0x810
[  603.573197][ T8086]  __sock_sendmsg+0xd5/0x180
[  603.577804][ T8086]  ____sys_sendmsg+0x6ac/0x940
[  603.582583][ T8086]  ? copy_msghdr_from_user+0x10b/0x160
[  603.588135][ T8086]  ? kernel_sendmsg+0x50/0x50
[  603.592906][ T8086]  ? hlock_class+0x4e/0x130
[  603.597421][ T8086]  ? __lock_acquire+0x14e0/0x3b10
[  603.602562][ T8086]  ___sys_sendmsg+0x135/0x1d0
[  603.607514][ T8086]  ? do_recvmmsg+0x740/0x740
[  603.612127][ T8086]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  603.618331][ T8086]  ? find_held_lock+0x2d/0x110
[  603.623522][ T8086]  ? __fget_light+0x1fc/0x260
[  603.628478][ T8086]  __sys_sendmsg+0x117/0x1e0
[  603.633080][ T8086]  ? __sys_sendmsg_sock+0x30/0x30
[  603.638392][ T8086]  ? __do_sys_rseq+0x750/0x750
[  603.643183][ T8086]  ? syscall_enter_from_user_mode+0x7f/0x120
[  603.649627][ T8086]  do_syscall_64+0x40/0x110
[  603.654681][ T8086]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  603.660599][ T8086] RIP: 0033:0x7fb700fd30b9
[  603.665109][ T8086] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  603.685160][ T8086] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  603.693670][ T8086] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  603.702079][ T8086] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  603.710313][ T8086] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  603.718463][ T8086] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  603.726872][ T8086] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  603.735045][ T8086]  </TASK>
[  603.738577][ T8086] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  603.803375][ T8087] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  603.814528][ T8087] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  603.824313][ T8087] CPU: 0 PID: 8087 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  603.835289][ T8087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  603.846311][ T8087] Call Trace:
[  603.849712][ T8087]  <TASK>
[  603.852732][ T8087]  dump_stack_lvl+0x125/0x1b0
[  603.857766][ T8087]  sysfs_warn_dup+0x7f/0xa0
[  603.862712][ T8087]  sysfs_create_dir_ns+0x249/0x2b0
[  603.868090][ T8087]  ? sysfs_create_mount_point+0xb0/0xb0
[  603.874146][ T8087]  ? spin_bug+0x1d0/0x1d0
[  603.878612][ T8087]  ? net_namespace+0x12/0x40
[  603.883629][ T8087]  ? device_namespace+0x8d/0xc0
[  603.888780][ T8087]  kobject_add_internal+0x2c8/0x970
[  603.894194][ T8087]  kobject_add+0x16f/0x240
[  603.898722][ T8087]  ? kset_create_and_add+0x190/0x190
[  603.904121][ T8087]  ? do_raw_spin_unlock+0x173/0x230
[  603.909802][ T8087]  ? kobject_put+0xbe/0x440
[  603.914882][ T8087]  ? device_add+0xc35/0x1aa0
[  603.919798][ T8087]  device_add+0x289/0x1aa0
[  603.924555][ T8087]  ? device_initialize+0x510/0x510
[  603.929940][ T8087]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  603.937722][ T8087]  ? __init_waitqueue_head+0xca/0x150
[  603.943480][ T8087]  netdev_register_kobject+0x183/0x3f0
[  603.950068][ T8087]  register_netdevice+0xbe6/0x14b0
[  603.955384][ T8087]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  603.961315][ T8087]  ? validate_linkmsg+0x6fc/0x9c0
[  603.966572][ T8087]  br_dev_newlink+0x27/0x110
[  603.971199][ T8087]  ? br_changelink+0x1760/0x1760
[  603.976377][ T8087]  __rtnl_newlink+0x1173/0x1930
[  603.981620][ T8087]  ? rtnl_link_unregister+0x260/0x260
[  603.987143][ T8087]  rtnl_newlink+0x67/0xa0
[  603.991553][ T8087]  ? __rtnl_newlink+0x1930/0x1930
[  603.996673][ T8087]  rtnetlink_rcv_msg+0x3c7/0xe00
[  604.001876][ T8087]  ? rtnl_fill_vf+0x4a0/0x4a0
[  604.006777][ T8087]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  604.013324][ T8087]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  604.019429][ T8087]  netlink_rcv_skb+0x16b/0x440
[  604.024310][ T8087]  ? rtnl_fill_vf+0x4a0/0x4a0
[  604.029095][ T8087]  ? netlink_ack+0x1380/0x1380
[  604.034060][ T8087]  ? lock_sync+0x190/0x190
[  604.038781][ T8087]  ? netlink_deliver_tap+0x1a0/0xd00
[  604.044230][ T8087]  ? _copy_from_iter+0x2c1/0x10f0
[  604.049624][ T8087]  netlink_unicast+0x53b/0x810
[  604.054559][ T8087]  ? netlink_attachskb+0x880/0x880
[  604.059776][ T8087]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  604.065757][ T8087]  ? __phys_addr_symbol+0x30/0x70
[  604.070880][ T8087]  ? __check_object_size+0x323/0x730
[  604.076275][ T8087]  netlink_sendmsg+0x93c/0xe40
[  604.081147][ T8087]  ? netlink_unicast+0x810/0x810
[  604.086499][ T8087]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  604.091982][ T8087]  ? netlink_unicast+0x810/0x810
[  604.097304][ T8087]  __sock_sendmsg+0xd5/0x180
[  604.102175][ T8087]  ____sys_sendmsg+0x6ac/0x940
[  604.107249][ T8087]  ? copy_msghdr_from_user+0x10b/0x160
[  604.113014][ T8087]  ? kernel_sendmsg+0x50/0x50
[  604.118084][ T8087]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  604.124351][ T8087]  ___sys_sendmsg+0x135/0x1d0
[  604.135742][ T8087]  ? do_recvmmsg+0x740/0x740
[  604.140649][ T8087]  ? find_held_lock+0x2d/0x110
[  604.145870][ T8087]  ? preempt_count_sub+0x160/0x160
[  604.150993][ T8087]  ? __fget_light+0x1fc/0x260
[  604.156040][ T8087]  __sys_sendmsg+0x117/0x1e0
[  604.161077][ T8087]  ? __sys_sendmsg_sock+0x30/0x30
[  604.166127][ T8087]  ? syscall_enter_from_user_mode+0x7f/0x120
[  604.172224][ T8087]  do_syscall_64+0x40/0x110
[  604.177205][ T8087]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  604.183307][ T8087] RIP: 0033:0x7fb700fd30b9
[  604.187846][ T8087] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  604.208512][ T8087] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  604.217387][ T8087] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  604.226527][ T8087] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  604.235433][ T8087] RBP: 0000000000093270 R08: 0000000000000000 R09: 0000000000000006
[  604.243592][ T8087] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  604.252117][ T8087] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  604.260650][ T8087]  </TASK>
[  604.266710][ T8087] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  604.326095][ T8087] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  604.335715][ T8087] CPU: 1 PID: 8087 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  604.346405][ T8087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  604.356941][ T8087] Call Trace:
[  604.360393][ T8087]  <TASK>
[  604.363326][ T8087]  dump_stack_lvl+0x125/0x1b0
[  604.368303][ T8087]  sysfs_warn_dup+0x7f/0xa0
[  604.372820][ T8087]  sysfs_create_dir_ns+0x249/0x2b0
[  604.378048][ T8087]  ? sysfs_create_mount_point+0xb0/0xb0
[  604.383705][ T8087]  ? spin_bug+0x1d0/0x1d0
[  604.388131][ T8087]  ? net_namespace+0x12/0x40
[  604.392901][ T8087]  ? device_namespace+0x8d/0xc0
[  604.397766][ T8087]  kobject_add_internal+0x2c8/0x970
[  604.403067][ T8087]  kobject_add+0x16f/0x240
[  604.407663][ T8087]  ? kset_create_and_add+0x190/0x190
[  604.412957][ T8087]  ? do_raw_spin_unlock+0x173/0x230
[  604.418167][ T8087]  ? kobject_put+0xbe/0x440
[  604.422774][ T8087]  ? device_add+0xc35/0x1aa0
[  604.427460][ T8087]  device_add+0x289/0x1aa0
[  604.432141][ T8087]  ? device_initialize+0x510/0x510
[  604.438122][ T8087]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  604.445688][ T8087]  ? __init_waitqueue_head+0xca/0x150
[  604.451439][ T8087]  netdev_register_kobject+0x183/0x3f0
[  604.456926][ T8087]  register_netdevice+0xbe6/0x14b0
[  604.462486][ T8087]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  604.469180][ T8087]  ? validate_linkmsg+0x6fc/0x9c0
[  604.474411][ T8087]  br_dev_newlink+0x27/0x110
[  604.480077][ T8087]  ? br_changelink+0x1760/0x1760
[  604.485307][ T8087]  __rtnl_newlink+0x1173/0x1930
[  604.491090][ T8087]  ? rtnl_link_unregister+0x260/0x260
[  604.497529][ T8087]  rtnl_newlink+0x67/0xa0
[  604.501993][ T8087]  ? __rtnl_newlink+0x1930/0x1930
[  604.507995][ T8087]  rtnetlink_rcv_msg+0x3c7/0xe00
[  604.513409][ T8087]  ? rtnl_fill_vf+0x4a0/0x4a0
[  604.518371][ T8087]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  604.524542][ T8087]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  604.530879][ T8087]  netlink_rcv_skb+0x16b/0x440
[  604.536200][ T8087]  ? rtnl_fill_vf+0x4a0/0x4a0
[  604.541774][ T8087]  ? netlink_ack+0x1380/0x1380
[  604.547788][ T8087]  ? lock_sync+0x190/0x190
[  604.552438][ T8087]  ? netlink_deliver_tap+0x1a0/0xd00
[  604.558373][ T8087]  ? _copy_from_iter+0x2c1/0x10f0
[  604.564274][ T8087]  netlink_unicast+0x53b/0x810
[  604.569338][ T8087]  ? netlink_attachskb+0x880/0x880
[  604.574701][ T8087]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  604.580952][ T8087]  ? __phys_addr_symbol+0x30/0x70
[  604.586246][ T8087]  ? __check_object_size+0x323/0x730
[  604.591996][ T8087]  netlink_sendmsg+0x93c/0xe40
[  604.596974][ T8087]  ? netlink_unicast+0x810/0x810
[  604.602331][ T8087]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  604.607914][ T8087]  ? netlink_unicast+0x810/0x810
[  604.613151][ T8087]  __sock_sendmsg+0xd5/0x180
[  604.618398][ T8087]  ____sys_sendmsg+0x6ac/0x940
[  604.624241][ T8087]  ? copy_msghdr_from_user+0x10b/0x160
[  604.629722][ T8087]  ? kernel_sendmsg+0x50/0x50
[  604.634459][ T8087]  ? hlock_class+0x4e/0x130
[  604.638972][ T8087]  ? __lock_acquire+0x14e0/0x3b10
[  604.644098][ T8087]  ___sys_sendmsg+0x135/0x1d0
[  604.648961][ T8087]  ? do_recvmmsg+0x740/0x740
[  604.653646][ T8087]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  604.659808][ T8087]  ? find_held_lock+0x2d/0x110
[  604.664798][ T8087]  ? __fget_light+0x1fc/0x260
[  604.669515][ T8087]  __sys_sendmsg+0x117/0x1e0
[  604.674489][ T8087]  ? __sys_sendmsg_sock+0x30/0x30
[  604.679716][ T8087]  ? xfd_validate_state+0x5d/0x180
[  604.685030][ T8087]  ? syscall_enter_from_user_mode+0x7f/0x120
[  604.691152][ T8087]  do_syscall_64+0x40/0x110
[  604.695925][ T8087]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  604.701933][ T8087] RIP: 0033:0x7fb700fd30b9
[  604.706539][ T8087] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  604.727384][ T8087] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  604.735820][ T8087] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  604.744422][ T8087] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  604.752935][ T8087] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  604.762102][ T8087] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  604.770722][ T8087] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  604.778994][ T8087]  </TASK>
[  604.793324][ T8087] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  604.862095][ T8088] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  604.873303][ T8088] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  604.882606][ T8088] CPU: 1 PID: 8088 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  604.893215][ T8088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  604.903714][ T8088] Call Trace:
[  604.906997][ T8088]  <TASK>
[  604.909932][ T8088]  dump_stack_lvl+0x125/0x1b0
[  604.914791][ T8088]  sysfs_warn_dup+0x7f/0xa0
[  604.919487][ T8088]  sysfs_create_dir_ns+0x249/0x2b0
[  604.924871][ T8088]  ? sysfs_create_mount_point+0xb0/0xb0
[  604.930512][ T8088]  ? spin_bug+0x1d0/0x1d0
[  604.934955][ T8088]  ? net_namespace+0x12/0x40
[  604.940371][ T8088]  ? device_namespace+0x8d/0xc0
[  604.945252][ T8088]  kobject_add_internal+0x2c8/0x970
[  604.950480][ T8088]  kobject_add+0x16f/0x240
[  604.955340][ T8088]  ? kset_create_and_add+0x190/0x190
[  604.960900][ T8088]  ? do_raw_spin_unlock+0x173/0x230
[  604.966108][ T8088]  ? kobject_put+0xbe/0x440
[  604.970889][ T8088]  ? device_add+0xc35/0x1aa0
[  604.975516][ T8088]  device_add+0x289/0x1aa0
[  604.979949][ T8088]  ? device_initialize+0x510/0x510
[  604.985152][ T8088]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  604.992279][ T8088]  ? __init_waitqueue_head+0xca/0x150
[  604.997769][ T8088]  netdev_register_kobject+0x183/0x3f0
[  605.003250][ T8088]  register_netdevice+0xbe6/0x14b0
[  605.008546][ T8088]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  605.014893][ T8088]  ? validate_linkmsg+0x6fc/0x9c0
[  605.020286][ T8088]  br_dev_newlink+0x27/0x110
[  605.025902][ T8088]  ? br_changelink+0x1760/0x1760
[  605.031041][ T8088]  __rtnl_newlink+0x1173/0x1930
[  605.036110][ T8088]  ? rtnl_link_unregister+0x260/0x260
[  605.041530][ T8088]  rtnl_newlink+0x67/0xa0
[  605.045952][ T8088]  ? __rtnl_newlink+0x1930/0x1930
[  605.050987][ T8088]  rtnetlink_rcv_msg+0x3c7/0xe00
[  605.055936][ T8088]  ? rtnl_fill_vf+0x4a0/0x4a0
[  605.060795][ T8088]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  605.066822][ T8088]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  605.072824][ T8088]  netlink_rcv_skb+0x16b/0x440
[  605.077945][ T8088]  ? rtnl_fill_vf+0x4a0/0x4a0
[  605.082816][ T8088]  ? netlink_ack+0x1380/0x1380
[  605.087765][ T8088]  ? lock_sync+0x190/0x190
[  605.092299][ T8088]  ? netlink_deliver_tap+0x1a0/0xd00
[  605.097766][ T8088]  ? _copy_from_iter+0x2c1/0x10f0
[  605.103068][ T8088]  netlink_unicast+0x53b/0x810
[  605.107957][ T8088]  ? netlink_attachskb+0x880/0x880
[  605.113192][ T8088]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  605.119105][ T8088]  ? __phys_addr_symbol+0x30/0x70
[  605.124313][ T8088]  ? __check_object_size+0x323/0x730
[  605.129796][ T8088]  netlink_sendmsg+0x93c/0xe40
[  605.134666][ T8088]  ? netlink_unicast+0x810/0x810
[  605.139876][ T8088]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  605.145227][ T8088]  ? netlink_unicast+0x810/0x810
[  605.150315][ T8088]  __sock_sendmsg+0xd5/0x180
[  605.154924][ T8088]  ____sys_sendmsg+0x6ac/0x940
[  605.159784][ T8088]  ? copy_msghdr_from_user+0x10b/0x160
[  605.165276][ T8088]  ? kernel_sendmsg+0x50/0x50
[  605.169977][ T8088]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  605.175972][ T8088]  ___sys_sendmsg+0x135/0x1d0
[  605.180747][ T8088]  ? do_recvmmsg+0x740/0x740
[  605.185433][ T8088]  ? find_held_lock+0x2d/0x110
[  605.190396][ T8088]  ? preempt_count_sub+0x160/0x160
[  605.195558][ T8088]  ? __fget_light+0x1fc/0x260
[  605.200524][ T8088]  __sys_sendmsg+0x117/0x1e0
[  605.205157][ T8088]  ? __sys_sendmsg_sock+0x30/0x30
[  605.210819][ T8088]  ? syscall_enter_from_user_mode+0x7f/0x120
[  605.217099][ T8088]  do_syscall_64+0x40/0x110
[  605.221799][ T8088]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  605.227995][ T8088] RIP: 0033:0x7fb700fd30b9
[  605.232529][ T8088] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  605.252795][ T8088] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  605.261829][ T8088] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  605.270065][ T8088] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  605.278243][ T8088] RBP: 000000000009366e R08: 0000000000000000 R09: 0000000000000006
[  605.286282][ T8088] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  605.294437][ T8088] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  605.302616][ T8088]  </TASK>
[  605.306336][ T8088] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  605.375884][ T8088] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  605.385136][ T8088] CPU: 0 PID: 8088 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  605.395234][ T8088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  605.405563][ T8088] Call Trace:
[  605.408909][ T8088]  <TASK>
[  605.411861][ T8088]  dump_stack_lvl+0x125/0x1b0
[  605.416646][ T8088]  sysfs_warn_dup+0x7f/0xa0
[  605.421179][ T8088]  sysfs_create_dir_ns+0x249/0x2b0
[  605.426492][ T8088]  ? sysfs_create_mount_point+0xb0/0xb0
[  605.432235][ T8088]  ? spin_bug+0x1d0/0x1d0
[  605.436669][ T8088]  ? net_namespace+0x12/0x40
[  605.441263][ T8088]  ? device_namespace+0x8d/0xc0
[  605.446329][ T8088]  kobject_add_internal+0x2c8/0x970
[  605.451812][ T8088]  kobject_add+0x16f/0x240
[  605.456417][ T8088]  ? kset_create_and_add+0x190/0x190
[  605.461871][ T8088]  ? do_raw_spin_unlock+0x173/0x230
[  605.467431][ T8088]  ? kobject_put+0xbe/0x440
[  605.472301][ T8088]  ? device_add+0xc35/0x1aa0
[  605.476999][ T8088]  device_add+0x289/0x1aa0
[  605.481611][ T8088]  ? device_initialize+0x510/0x510
[  605.486995][ T8088]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  605.495260][ T8088]  ? __init_waitqueue_head+0xca/0x150
[  605.500840][ T8088]  netdev_register_kobject+0x183/0x3f0
[  605.506515][ T8088]  register_netdevice+0xbe6/0x14b0
[  605.512432][ T8088]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  605.518897][ T8088]  ? validate_linkmsg+0x6fc/0x9c0
[  605.524036][ T8088]  br_dev_newlink+0x27/0x110
[  605.528889][ T8088]  ? br_changelink+0x1760/0x1760
[  605.534636][ T8088]  __rtnl_newlink+0x1173/0x1930
[  605.539614][ T8088]  ? rtnl_link_unregister+0x260/0x260
[  605.545100][ T8088]  rtnl_newlink+0x67/0xa0
[  605.549613][ T8088]  ? __rtnl_newlink+0x1930/0x1930
[  605.554938][ T8088]  rtnetlink_rcv_msg+0x3c7/0xe00
[  605.559969][ T8088]  ? rtnl_fill_vf+0x4a0/0x4a0
[  605.564831][ T8088]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  605.571000][ T8088]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  605.577361][ T8088]  netlink_rcv_skb+0x16b/0x440
[  605.582414][ T8088]  ? rtnl_fill_vf+0x4a0/0x4a0
[  605.587117][ T8088]  ? netlink_ack+0x1380/0x1380
[  605.592071][ T8088]  ? lock_sync+0x190/0x190
[  605.597391][ T8088]  ? netlink_deliver_tap+0x1a0/0xd00
[  605.603043][ T8088]  ? _copy_from_iter+0x2c1/0x10f0
[  605.608080][ T8088]  netlink_unicast+0x53b/0x810
[  605.613395][ T8088]  ? netlink_attachskb+0x880/0x880
[  605.618627][ T8088]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  605.624723][ T8088]  ? __phys_addr_symbol+0x30/0x70
[  605.629759][ T8088]  ? __check_object_size+0x323/0x730
[  605.635219][ T8088]  netlink_sendmsg+0x93c/0xe40
[  605.640116][ T8088]  ? netlink_unicast+0x810/0x810
[  605.645079][ T8088]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  605.650588][ T8088]  ? netlink_unicast+0x810/0x810
[  605.655649][ T8088]  __sock_sendmsg+0xd5/0x180
[  605.660456][ T8088]  ____sys_sendmsg+0x6ac/0x940
[  605.665684][ T8088]  ? copy_msghdr_from_user+0x10b/0x160
[  605.671252][ T8088]  ? kernel_sendmsg+0x50/0x50
[  605.675940][ T8088]  ? hlock_class+0x4e/0x130
[  605.680537][ T8088]  ? __lock_acquire+0x14e0/0x3b10
[  605.685590][ T8088]  ___sys_sendmsg+0x135/0x1d0
[  605.690471][ T8088]  ? do_recvmmsg+0x740/0x740
[  605.695338][ T8088]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  605.702116][ T8088]  ? find_held_lock+0x2d/0x110
[  605.707009][ T8088]  ? __fget_light+0x1fc/0x260
[  605.711973][ T8088]  __sys_sendmsg+0x117/0x1e0
[  605.716804][ T8088]  ? __sys_sendmsg_sock+0x30/0x30
[  605.722103][ T8088]  ? __do_sys_rseq+0x750/0x750
[  605.726877][ T8088]  ? syscall_enter_from_user_mode+0x7f/0x120
[  605.732964][ T8088]  do_syscall_64+0x40/0x110
[  605.737482][ T8088]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  605.743674][ T8088] RIP: 0033:0x7fb700fd30b9
[  605.748194][ T8088] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  605.768679][ T8088] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  605.777094][ T8088] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  605.785495][ T8088] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  605.793734][ T8088] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  605.801801][ T8088] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  605.810324][ T8088] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  605.818656][ T8088]  </TASK>
[  605.822318][ T8088] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  605.881136][ T8089] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  605.892014][ T8089] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  605.901650][ T8089] CPU: 0 PID: 8089 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  605.911995][ T8089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  605.922602][ T8089] Call Trace:
[  605.926072][ T8089]  <TASK>
[  605.929031][ T8089]  dump_stack_lvl+0x125/0x1b0
[  605.933807][ T8089]  sysfs_warn_dup+0x7f/0xa0
[  605.938421][ T8089]  sysfs_create_dir_ns+0x249/0x2b0
[  605.943728][ T8089]  ? sysfs_create_mount_point+0xb0/0xb0
[  605.949375][ T8089]  ? spin_bug+0x1d0/0x1d0
[  605.953716][ T8089]  ? net_namespace+0x12/0x40
[  605.958316][ T8089]  ? device_namespace+0x8d/0xc0
[  605.963202][ T8089]  kobject_add_internal+0x2c8/0x970
[  605.968430][ T8089]  kobject_add+0x16f/0x240
[  605.972955][ T8089]  ? kset_create_and_add+0x190/0x190
[  605.978355][ T8089]  ? do_raw_spin_unlock+0x173/0x230
[  605.984098][ T8089]  ? kobject_put+0xbe/0x440
[  605.988874][ T8089]  ? device_add+0xc35/0x1aa0
[  605.993747][ T8089]  device_add+0x289/0x1aa0
[  605.998320][ T8089]  ? device_initialize+0x510/0x510
[  606.003715][ T8089]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  606.010696][ T8089]  ? __init_waitqueue_head+0xca/0x150
[  606.016100][ T8089]  netdev_register_kobject+0x183/0x3f0
[  606.021841][ T8089]  register_netdevice+0xbe6/0x14b0
[  606.027402][ T8089]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  606.033399][ T8089]  ? validate_linkmsg+0x6fc/0x9c0
[  606.038518][ T8089]  br_dev_newlink+0x27/0x110
[  606.043117][ T8089]  ? br_changelink+0x1760/0x1760
[  606.048255][ T8089]  __rtnl_newlink+0x1173/0x1930
[  606.053389][ T8089]  ? rtnl_link_unregister+0x260/0x260
[  606.059032][ T8089]  rtnl_newlink+0x67/0xa0
[  606.063646][ T8089]  ? __rtnl_newlink+0x1930/0x1930
[  606.068770][ T8089]  rtnetlink_rcv_msg+0x3c7/0xe00
[  606.073862][ T8089]  ? rtnl_fill_vf+0x4a0/0x4a0
[  606.078896][ T8089]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  606.085150][ T8089]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  606.091695][ T8089]  netlink_rcv_skb+0x16b/0x440
[  606.097002][ T8089]  ? rtnl_fill_vf+0x4a0/0x4a0
[  606.102124][ T8089]  ? netlink_ack+0x1380/0x1380
[  606.107706][ T8089]  ? lock_sync+0x190/0x190
[  606.112250][ T8089]  ? netlink_deliver_tap+0x1a0/0xd00
[  606.117905][ T8089]  ? _copy_from_iter+0x2c1/0x10f0
[  606.123467][ T8089]  netlink_unicast+0x53b/0x810
[  606.129835][ T8089]  ? netlink_attachskb+0x880/0x880
[  606.135130][ T8089]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  606.142070][ T8089]  ? __phys_addr_symbol+0x30/0x70
[  606.147636][ T8089]  ? __check_object_size+0x323/0x730
[  606.153194][ T8089]  netlink_sendmsg+0x93c/0xe40
[  606.158334][ T8089]  ? netlink_unicast+0x810/0x810
[  606.163553][ T8089]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  606.168983][ T8089]  ? netlink_unicast+0x810/0x810
[  606.174025][ T8089]  __sock_sendmsg+0xd5/0x180
[  606.178634][ T8089]  ____sys_sendmsg+0x6ac/0x940
[  606.183842][ T8089]  ? copy_msghdr_from_user+0x10b/0x160
[  606.189311][ T8089]  ? kernel_sendmsg+0x50/0x50
[  606.194269][ T8089]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  606.200277][ T8089]  ___sys_sendmsg+0x135/0x1d0
[  606.204969][ T8089]  ? do_recvmmsg+0x740/0x740
[  606.209678][ T8089]  ? find_held_lock+0x2d/0x110
[  606.214851][ T8089]  ? preempt_count_sub+0x160/0x160
[  606.220451][ T8089]  ? __fget_light+0x1fc/0x260
[  606.225356][ T8089]  __sys_sendmsg+0x117/0x1e0
[  606.230497][ T8089]  ? __sys_sendmsg_sock+0x30/0x30
[  606.236008][ T8089]  ? syscall_enter_from_user_mode+0x7f/0x120
[  606.242387][ T8089]  do_syscall_64+0x40/0x110
[  606.248008][ T8089]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  606.254250][ T8089] RIP: 0033:0x7fb700fd30b9
[  606.258888][ T8089] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  606.279054][ T8089] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  606.287945][ T8089] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  606.296186][ T8089] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  606.304328][ T8089] RBP: 0000000000093a91 R08: 0000000000000000 R09: 0000000000000006
[  606.312385][ T8089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  606.320749][ T8089] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  606.329451][ T8089]  </TASK>
[  606.333248][ T8089] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  606.395883][ T8089] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  606.405438][ T8089] CPU: 1 PID: 8089 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  606.416053][ T8089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  606.426364][ T8089] Call Trace:
[  606.429905][ T8089]  <TASK>
[  606.432971][ T8089]  dump_stack_lvl+0x125/0x1b0
[  606.437760][ T8089]  sysfs_warn_dup+0x7f/0xa0
[  606.442411][ T8089]  sysfs_create_dir_ns+0x249/0x2b0
[  606.447895][ T8089]  ? sysfs_create_mount_point+0xb0/0xb0
[  606.453474][ T8089]  ? spin_bug+0x1d0/0x1d0
[  606.458277][ T8089]  ? net_namespace+0x12/0x40
[  606.463415][ T8089]  ? device_namespace+0x8d/0xc0
[  606.468809][ T8089]  kobject_add_internal+0x2c8/0x970
[  606.474210][ T8089]  kobject_add+0x16f/0x240
[  606.479005][ T8089]  ? kset_create_and_add+0x190/0x190
[  606.484663][ T8089]  ? do_raw_spin_unlock+0x173/0x230
[  606.489990][ T8089]  ? kobject_put+0xbe/0x440
[  606.495170][ T8089]  ? device_add+0xc35/0x1aa0
[  606.500543][ T8089]  device_add+0x289/0x1aa0
[  606.505860][ T8089]  ? device_initialize+0x510/0x510
[  606.511186][ T8089]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  606.518380][ T8089]  ? __init_waitqueue_head+0xca/0x150
[  606.524027][ T8089]  netdev_register_kobject+0x183/0x3f0
[  606.529702][ T8089]  register_netdevice+0xbe6/0x14b0
[  606.534947][ T8089]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  606.541046][ T8089]  ? validate_linkmsg+0x6fc/0x9c0
[  606.546137][ T8089]  br_dev_newlink+0x27/0x110
[  606.551625][ T8089]  ? br_changelink+0x1760/0x1760
[  606.556774][ T8089]  __rtnl_newlink+0x1173/0x1930
[  606.562747][ T8089]  ? rtnl_link_unregister+0x260/0x260
[  606.568314][ T8089]  rtnl_newlink+0x67/0xa0
[  606.573272][ T8089]  ? __rtnl_newlink+0x1930/0x1930
[  606.578416][ T8089]  rtnetlink_rcv_msg+0x3c7/0xe00
[  606.583821][ T8089]  ? rtnl_fill_vf+0x4a0/0x4a0
[  606.589745][ T8089]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  606.595988][ T8089]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  606.602014][ T8089]  netlink_rcv_skb+0x16b/0x440
[  606.606976][ T8089]  ? rtnl_fill_vf+0x4a0/0x4a0
[  606.612005][ T8089]  ? netlink_ack+0x1380/0x1380
[  606.617112][ T8089]  ? lock_sync+0x190/0x190
[  606.621543][ T8089]  ? netlink_deliver_tap+0x1a0/0xd00
[  606.626917][ T8089]  ? _copy_from_iter+0x2c1/0x10f0
[  606.632075][ T8089]  netlink_unicast+0x53b/0x810
[  606.637066][ T8089]  ? netlink_attachskb+0x880/0x880
[  606.642433][ T8089]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  606.648533][ T8089]  ? __phys_addr_symbol+0x30/0x70
[  606.653692][ T8089]  ? __check_object_size+0x323/0x730
[  606.658988][ T8089]  netlink_sendmsg+0x93c/0xe40
[  606.664139][ T8089]  ? netlink_unicast+0x810/0x810
[  606.669360][ T8089]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  606.675005][ T8089]  ? netlink_unicast+0x810/0x810
[  606.679951][ T8089]  __sock_sendmsg+0xd5/0x180
[  606.684555][ T8089]  ____sys_sendmsg+0x6ac/0x940
[  606.689647][ T8089]  ? copy_msghdr_from_user+0x10b/0x160
[  606.695111][ T8089]  ? kernel_sendmsg+0x50/0x50
[  606.699960][ T8089]  ___sys_sendmsg+0x135/0x1d0
[  606.704722][ T8089]  ? do_recvmmsg+0x740/0x740
[  606.709451][ T8089]  ? find_held_lock+0x2d/0x110
[  606.715103][ T8089]  ? preempt_count_sub+0x160/0x160
[  606.720322][ T8089]  ? __fget_light+0x1fc/0x260
[  606.724998][ T8089]  __sys_sendmsg+0x117/0x1e0
[  606.729599][ T8089]  ? __sys_sendmsg_sock+0x30/0x30
[  606.734634][ T8089]  ? syscall_enter_from_user_mode+0x7f/0x120
[  606.740795][ T8089]  do_syscall_64+0x40/0x110
[  606.745293][ T8089]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  606.751274][ T8089] RIP: 0033:0x7fb700fd30b9
[  606.755681][ T8089] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  606.777976][ T8089] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  606.788598][ T8089] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  606.796829][ T8089] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  606.804977][ T8089] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  606.813123][ T8089] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  606.821302][ T8089] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  606.829716][ T8089]  </TASK>
[  606.833071][ T8089] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  606.902295][ T8090] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  606.913204][ T8090] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  606.924246][ T8090] CPU: 1 PID: 8090 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  606.934505][ T8090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  606.944998][ T8090] Call Trace:
[  606.948296][ T8090]  <TASK>
[  606.951399][ T8090]  dump_stack_lvl+0x125/0x1b0
[  606.956322][ T8090]  sysfs_warn_dup+0x7f/0xa0
[  606.961123][ T8090]  sysfs_create_dir_ns+0x249/0x2b0
[  606.966539][ T8090]  ? sysfs_create_mount_point+0xb0/0xb0
[  606.972276][ T8090]  ? spin_bug+0x1d0/0x1d0
[  606.976720][ T8090]  ? net_namespace+0x12/0x40
[  606.981327][ T8090]  ? device_namespace+0x8d/0xc0
[  606.986303][ T8090]  kobject_add_internal+0x2c8/0x970
[  606.991623][ T8090]  kobject_add+0x16f/0x240
[  606.996049][ T8090]  ? kset_create_and_add+0x190/0x190
[  607.001438][ T8090]  ? do_raw_spin_unlock+0x173/0x230
[  607.006729][ T8090]  ? kobject_put+0xbe/0x440
[  607.011235][ T8090]  ? device_add+0xc35/0x1aa0
[  607.016174][ T8090]  device_add+0x289/0x1aa0
[  607.020764][ T8090]  ? device_initialize+0x510/0x510
[  607.026227][ T8090]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  607.033533][ T8090]  ? __init_waitqueue_head+0xca/0x150
[  607.039458][ T8090]  netdev_register_kobject+0x183/0x3f0
[  607.045015][ T8090]  register_netdevice+0xbe6/0x14b0
[  607.050263][ T8090]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  607.056253][ T8090]  ? validate_linkmsg+0x6fc/0x9c0
[  607.061368][ T8090]  br_dev_newlink+0x27/0x110
[  607.065961][ T8090]  ? br_changelink+0x1760/0x1760
[  607.070918][ T8090]  __rtnl_newlink+0x1173/0x1930
[  607.076040][ T8090]  ? rtnl_link_unregister+0x260/0x260
[  607.081432][ T8090]  rtnl_newlink+0x67/0xa0
[  607.085766][ T8090]  ? __rtnl_newlink+0x1930/0x1930
[  607.090881][ T8090]  rtnetlink_rcv_msg+0x3c7/0xe00
[  607.096010][ T8090]  ? rtnl_fill_vf+0x4a0/0x4a0
[  607.101209][ T8090]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  607.107207][ T8090]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  607.113297][ T8090]  netlink_rcv_skb+0x16b/0x440
[  607.118503][ T8090]  ? rtnl_fill_vf+0x4a0/0x4a0
[  607.123205][ T8090]  ? netlink_ack+0x1380/0x1380
[  607.128073][ T8090]  ? lock_sync+0x190/0x190
[  607.132590][ T8090]  ? netlink_deliver_tap+0x1a0/0xd00
[  607.137897][ T8090]  ? _copy_from_iter+0x2c1/0x10f0
[  607.142940][ T8090]  netlink_unicast+0x53b/0x810
[  607.147734][ T8090]  ? netlink_attachskb+0x880/0x880
[  607.152950][ T8090]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  607.158956][ T8090]  ? __phys_addr_symbol+0x30/0x70
[  607.164156][ T8090]  ? __check_object_size+0x323/0x730
[  607.169584][ T8090]  netlink_sendmsg+0x93c/0xe40
[  607.174484][ T8090]  ? netlink_unicast+0x810/0x810
[  607.179617][ T8090]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  607.185256][ T8090]  ? netlink_unicast+0x810/0x810
[  607.190376][ T8090]  __sock_sendmsg+0xd5/0x180
[  607.195159][ T8090]  ____sys_sendmsg+0x6ac/0x940
[  607.200090][ T8090]  ? copy_msghdr_from_user+0x10b/0x160
[  607.205650][ T8090]  ? kernel_sendmsg+0x50/0x50
[  607.210694][ T8090]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  607.216857][ T8090]  ___sys_sendmsg+0x135/0x1d0
[  607.222009][ T8090]  ? do_recvmmsg+0x740/0x740
[  607.227323][ T8090]  ? find_held_lock+0x2d/0x110
[  607.233030][ T8090]  ? preempt_count_sub+0x160/0x160
[  607.238273][ T8090]  ? __fget_light+0x1fc/0x260
[  607.242966][ T8090]  __sys_sendmsg+0x117/0x1e0
[  607.247670][ T8090]  ? __sys_sendmsg_sock+0x30/0x30
[  607.252965][ T8090]  ? xfd_validate_state+0x5d/0x180
[  607.258256][ T8090]  ? syscall_enter_from_user_mode+0x7f/0x120
[  607.264365][ T8090]  do_syscall_64+0x40/0x110
[  607.269215][ T8090]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  607.275320][ T8090] RIP: 0033:0x7fb700fd30b9
[  607.281048][ T8090] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  607.301459][ T8090] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  607.310332][ T8090] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  607.318762][ T8090] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  607.326930][ T8090] RBP: 0000000000093e8c R08: 0000000000000000 R09: 0000000000000006
[  607.338083][ T8090] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  607.346389][ T8090] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  607.354551][ T8090]  </TASK>
[  607.359966][ T8090] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  607.436481][ T8090] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  607.446132][ T8090] CPU: 0 PID: 8090 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  607.456563][ T8090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  607.467318][ T8090] Call Trace:
[  607.470707][ T8090]  <TASK>
[  607.473756][ T8090]  dump_stack_lvl+0x125/0x1b0
[  607.478740][ T8090]  sysfs_warn_dup+0x7f/0xa0
[  607.483644][ T8090]  sysfs_create_dir_ns+0x249/0x2b0
[  607.488865][ T8090]  ? sysfs_create_mount_point+0xb0/0xb0
[  607.494694][ T8090]  ? spin_bug+0x1d0/0x1d0
[  607.500180][ T8090]  ? net_namespace+0x12/0x40
[  607.505079][ T8090]  ? device_namespace+0x8d/0xc0
[  607.510299][ T8090]  kobject_add_internal+0x2c8/0x970
[  607.515821][ T8090]  kobject_add+0x16f/0x240
[  607.520771][ T8090]  ? kset_create_and_add+0x190/0x190
[  607.526107][ T8090]  ? do_raw_spin_unlock+0x173/0x230
[  607.532024][ T8090]  ? kobject_put+0xbe/0x440
[  607.536693][ T8090]  ? device_add+0xc35/0x1aa0
[  607.541647][ T8090]  device_add+0x289/0x1aa0
[  607.546295][ T8090]  ? device_initialize+0x510/0x510
[  607.551496][ T8090]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  607.558491][ T8090]  ? __init_waitqueue_head+0xca/0x150
[  607.564257][ T8090]  netdev_register_kobject+0x183/0x3f0
[  607.570119][ T8090]  register_netdevice+0xbe6/0x14b0
[  607.575526][ T8090]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  607.581609][ T8090]  ? validate_linkmsg+0x6fc/0x9c0
[  607.586792][ T8090]  br_dev_newlink+0x27/0x110
[  607.591496][ T8090]  ? br_changelink+0x1760/0x1760
[  607.596620][ T8090]  __rtnl_newlink+0x1173/0x1930
[  607.601757][ T8090]  ? rtnl_link_unregister+0x260/0x260
[  607.607257][ T8090]  rtnl_newlink+0x67/0xa0
[  607.612058][ T8090]  ? __rtnl_newlink+0x1930/0x1930
[  607.617722][ T8090]  rtnetlink_rcv_msg+0x3c7/0xe00
[  607.623288][ T8090]  ? rtnl_fill_vf+0x4a0/0x4a0
[  607.628250][ T8090]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  607.634811][ T8090]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  607.641102][ T8090]  netlink_rcv_skb+0x16b/0x440
[  607.646071][ T8090]  ? rtnl_fill_vf+0x4a0/0x4a0
[  607.651017][ T8090]  ? netlink_ack+0x1380/0x1380
[  607.656163][ T8090]  ? lock_sync+0x190/0x190
[  607.660655][ T8090]  ? netlink_deliver_tap+0x1a0/0xd00
[  607.666133][ T8090]  ? _copy_from_iter+0x2c1/0x10f0
[  607.671405][ T8090]  netlink_unicast+0x53b/0x810
[  607.676311][ T8090]  ? netlink_attachskb+0x880/0x880
[  607.681531][ T8090]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  607.687613][ T8090]  ? __phys_addr_symbol+0x30/0x70
[  607.692738][ T8090]  ? __check_object_size+0x323/0x730
[  607.698295][ T8090]  netlink_sendmsg+0x93c/0xe40
[  607.703092][ T8090]  ? netlink_unicast+0x810/0x810
[  607.708051][ T8090]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  607.713341][ T8090]  ? netlink_unicast+0x810/0x810
[  607.718489][ T8090]  __sock_sendmsg+0xd5/0x180
[  607.723105][ T8090]  ____sys_sendmsg+0x6ac/0x940
[  607.727895][ T8090]  ? copy_msghdr_from_user+0x10b/0x160
[  607.733460][ T8090]  ? kernel_sendmsg+0x50/0x50
[  607.738155][ T8090]  ___sys_sendmsg+0x135/0x1d0
[  607.742856][ T8090]  ? do_recvmmsg+0x740/0x740
[  607.747577][ T8090]  ? find_held_lock+0x2d/0x110
[  607.752362][ T8090]  ? preempt_count_sub+0x160/0x160
[  607.757848][ T8090]  ? __fget_light+0x1fc/0x260
[  607.763056][ T8090]  __sys_sendmsg+0x117/0x1e0
[  607.767841][ T8090]  ? __sys_sendmsg_sock+0x30/0x30
[  607.773061][ T8090]  ? syscall_enter_from_user_mode+0x7f/0x120
[  607.779149][ T8090]  do_syscall_64+0x40/0x110
[  607.783836][ T8090]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  607.790097][ T8090] RIP: 0033:0x7fb700fd30b9
[  607.794688][ T8090] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  607.814563][ T8090] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  607.823255][ T8090] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  607.832195][ T8090] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  607.840274][ T8090] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  607.848391][ T8090] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  607.856841][ T8090] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  607.865433][ T8090]  </TASK>
[  607.870511][ T8090] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  607.930821][ T8091] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  607.941854][ T8091] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  607.952809][ T8091] CPU: 0 PID: 8091 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  607.963181][ T8091] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  607.973602][ T8091] Call Trace:
[  607.976987][ T8091]  <TASK>
[  607.980113][ T8091]  dump_stack_lvl+0x125/0x1b0
[  607.984918][ T8091]  sysfs_warn_dup+0x7f/0xa0
[  607.989802][ T8091]  sysfs_create_dir_ns+0x249/0x2b0
[  607.995566][ T8091]  ? sysfs_create_mount_point+0xb0/0xb0
[  608.001708][ T8091]  ? spin_bug+0x1d0/0x1d0
[  608.006586][ T8091]  ? net_namespace+0x12/0x40
[  608.011463][ T8091]  ? device_namespace+0x8d/0xc0
[  608.016354][ T8091]  kobject_add_internal+0x2c8/0x970
[  608.021748][ T8091]  kobject_add+0x16f/0x240
[  608.026177][ T8091]  ? kset_create_and_add+0x190/0x190
[  608.031642][ T8091]  ? do_raw_spin_unlock+0x173/0x230
[  608.036842][ T8091]  ? kobject_put+0xbe/0x440
[  608.041374][ T8091]  ? device_add+0xc35/0x1aa0
[  608.045976][ T8091]  device_add+0x289/0x1aa0
[  608.050483][ T8091]  ? device_initialize+0x510/0x510
[  608.055792][ T8091]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  608.062857][ T8091]  ? __init_waitqueue_head+0xca/0x150
[  608.068628][ T8091]  netdev_register_kobject+0x183/0x3f0
[  608.074303][ T8091]  register_netdevice+0xbe6/0x14b0
[  608.079688][ T8091]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  608.085873][ T8091]  ? validate_linkmsg+0x6fc/0x9c0
[  608.091439][ T8091]  br_dev_newlink+0x27/0x110
[  608.096131][ T8091]  ? br_changelink+0x1760/0x1760
[  608.101073][ T8091]  __rtnl_newlink+0x1173/0x1930
[  608.106119][ T8091]  ? rtnl_link_unregister+0x260/0x260
[  608.111698][ T8091]  rtnl_newlink+0x67/0xa0
[  608.116142][ T8091]  ? __rtnl_newlink+0x1930/0x1930
[  608.121463][ T8091]  rtnetlink_rcv_msg+0x3c7/0xe00
[  608.126517][ T8091]  ? rtnl_fill_vf+0x4a0/0x4a0
[  608.131321][ T8091]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  608.137575][ T8091]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  608.143756][ T8091]  netlink_rcv_skb+0x16b/0x440
[  608.148792][ T8091]  ? rtnl_fill_vf+0x4a0/0x4a0
[  608.154387][ T8091]  ? netlink_ack+0x1380/0x1380
[  608.159373][ T8091]  ? lock_sync+0x190/0x190
[  608.163902][ T8091]  ? netlink_deliver_tap+0x1a0/0xd00
[  608.169285][ T8091]  ? _copy_from_iter+0x2c1/0x10f0
[  608.174588][ T8091]  netlink_unicast+0x53b/0x810
[  608.179410][ T8091]  ? netlink_attachskb+0x880/0x880
[  608.184724][ T8091]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  608.190807][ T8091]  ? __phys_addr_symbol+0x30/0x70
[  608.195961][ T8091]  ? __check_object_size+0x323/0x730
[  608.201448][ T8091]  netlink_sendmsg+0x93c/0xe40
[  608.206591][ T8091]  ? netlink_unicast+0x810/0x810
[  608.211934][ T8091]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  608.217436][ T8091]  ? netlink_unicast+0x810/0x810
[  608.222602][ T8091]  __sock_sendmsg+0xd5/0x180
[  608.227761][ T8091]  ____sys_sendmsg+0x6ac/0x940
[  608.232728][ T8091]  ? copy_msghdr_from_user+0x10b/0x160
[  608.238552][ T8091]  ? kernel_sendmsg+0x50/0x50
[  608.243391][ T8091]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  608.249473][ T8091]  ___sys_sendmsg+0x135/0x1d0
[  608.254370][ T8091]  ? do_recvmmsg+0x740/0x740
[  608.259007][ T8091]  ? find_held_lock+0x2d/0x110
[  608.263824][ T8091]  ? preempt_count_sub+0x160/0x160
[  608.269152][ T8091]  ? __fget_light+0x1fc/0x260
[  608.273841][ T8091]  __sys_sendmsg+0x117/0x1e0
[  608.278562][ T8091]  ? __sys_sendmsg_sock+0x30/0x30
[  608.283707][ T8091]  ? xfd_validate_state+0x5d/0x180
[  608.289079][ T8091]  ? syscall_enter_from_user_mode+0x7f/0x120
[  608.295607][ T8091]  do_syscall_64+0x40/0x110
[  608.300322][ T8091]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  608.306578][ T8091] RIP: 0033:0x7fb700fd30b9
[  608.311083][ T8091] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  608.331396][ T8091] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  608.340097][ T8091] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  608.348337][ T8091] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  608.356597][ T8091] RBP: 0000000000094289 R08: 0000000000000000 R09: 0000000000000006
[  608.364838][ T8091] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  608.372816][ T8091] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  608.380955][ T8091]  </TASK>
[  608.384421][ T8091] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  608.435878][ T8091] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  608.445659][ T8091] CPU: 0 PID: 8091 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  608.456039][ T8091] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  608.466446][ T8091] Call Trace:
[  608.469820][ T8091]  <TASK>
[  608.473099][ T8091]  dump_stack_lvl+0x125/0x1b0
[  608.477882][ T8091]  sysfs_warn_dup+0x7f/0xa0
[  608.482568][ T8091]  sysfs_create_dir_ns+0x249/0x2b0
[  608.487858][ T8091]  ? sysfs_create_mount_point+0xb0/0xb0
[  608.493590][ T8091]  ? spin_bug+0x1d0/0x1d0
[  608.498105][ T8091]  ? net_namespace+0x12/0x40
[  608.502891][ T8091]  ? device_namespace+0x8d/0xc0
[  608.507971][ T8091]  kobject_add_internal+0x2c8/0x970
[  608.513734][ T8091]  kobject_add+0x16f/0x240
[  608.518277][ T8091]  ? kset_create_and_add+0x190/0x190
[  608.523833][ T8091]  ? do_raw_spin_unlock+0x173/0x230
[  608.529133][ T8091]  ? kobject_put+0xbe/0x440
[  608.533648][ T8091]  ? device_add+0xc35/0x1aa0
[  608.538601][ T8091]  device_add+0x289/0x1aa0
[  608.543201][ T8091]  ? device_initialize+0x510/0x510
[  608.548316][ T8091]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  608.555354][ T8091]  ? __init_waitqueue_head+0xca/0x150
[  608.560765][ T8091]  netdev_register_kobject+0x183/0x3f0
[  608.566421][ T8091]  register_netdevice+0xbe6/0x14b0
[  608.571805][ T8091]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  608.577708][ T8091]  ? validate_linkmsg+0x6fc/0x9c0
[  608.582747][ T8091]  br_dev_newlink+0x27/0x110
[  608.587435][ T8091]  ? br_changelink+0x1760/0x1760
[  608.593194][ T8091]  __rtnl_newlink+0x1173/0x1930
[  608.598338][ T8091]  ? rtnl_link_unregister+0x260/0x260
[  608.603768][ T8091]  rtnl_newlink+0x67/0xa0
[  608.608582][ T8091]  ? __rtnl_newlink+0x1930/0x1930
[  608.613743][ T8091]  rtnetlink_rcv_msg+0x3c7/0xe00
[  608.618871][ T8091]  ? rtnl_fill_vf+0x4a0/0x4a0
[  608.623668][ T8091]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  608.629764][ T8091]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  608.635855][ T8091]  netlink_rcv_skb+0x16b/0x440
[  608.640812][ T8091]  ? rtnl_fill_vf+0x4a0/0x4a0
[  608.645505][ T8091]  ? netlink_ack+0x1380/0x1380
[  608.650283][ T8091]  ? lock_sync+0x190/0x190
[  608.654899][ T8091]  ? netlink_deliver_tap+0x1a0/0xd00
[  608.660724][ T8091]  ? _copy_from_iter+0x2c1/0x10f0
[  608.666148][ T8091]  netlink_unicast+0x53b/0x810
[  608.671020][ T8091]  ? netlink_attachskb+0x880/0x880
[  608.676342][ T8091]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  608.682244][ T8091]  ? __phys_addr_symbol+0x30/0x70
[  608.687397][ T8091]  ? __check_object_size+0x323/0x730
[  608.692868][ T8091]  netlink_sendmsg+0x93c/0xe40
[  608.697674][ T8091]  ? netlink_unicast+0x810/0x810
[  608.702734][ T8091]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  608.708322][ T8091]  ? netlink_unicast+0x810/0x810
[  608.713273][ T8091]  __sock_sendmsg+0xd5/0x180
[  608.717881][ T8091]  ____sys_sendmsg+0x6ac/0x940
[  608.722683][ T8091]  ? copy_msghdr_from_user+0x10b/0x160
[  608.728328][ T8091]  ? kernel_sendmsg+0x50/0x50
[  608.733145][ T8091]  ? hlock_class+0x4e/0x130
[  608.737735][ T8091]  ? __lock_acquire+0x14e0/0x3b10
[  608.743009][ T8091]  ___sys_sendmsg+0x135/0x1d0
[  608.747728][ T8091]  ? do_recvmmsg+0x740/0x740
[  608.752792][ T8091]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  608.759171][ T8091]  ? find_held_lock+0x2d/0x110
[  608.764018][ T8091]  ? __fget_light+0x1fc/0x260
[  608.768878][ T8091]  __sys_sendmsg+0x117/0x1e0
[  608.773650][ T8091]  ? __sys_sendmsg_sock+0x30/0x30
[  608.778688][ T8091]  ? __do_sys_rseq+0x750/0x750
[  608.783822][ T8091]  ? syscall_enter_from_user_mode+0x7f/0x120
[  608.790506][ T8091]  do_syscall_64+0x40/0x110
[  608.795487][ T8091]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  608.801676][ T8091] RIP: 0033:0x7fb700fd30b9
[  608.806449][ T8091] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  608.826867][ T8091] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  608.835576][ T8091] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  608.843991][ T8091] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  608.852227][ T8091] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  608.860203][ T8091] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  608.868178][ T8091] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  608.876168][ T8091]  </TASK>
[  608.879479][ T8091] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  608.961236][ T8092] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  608.971856][ T8092] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  608.981342][ T8092] CPU: 0 PID: 8092 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  608.992119][ T8092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  609.002365][ T8092] Call Trace:
[  609.005732][ T8092]  <TASK>
[  609.008669][ T8092]  dump_stack_lvl+0x125/0x1b0
[  609.013438][ T8092]  sysfs_warn_dup+0x7f/0xa0
[  609.018036][ T8092]  sysfs_create_dir_ns+0x249/0x2b0
[  609.023574][ T8092]  ? sysfs_create_mount_point+0xb0/0xb0
[  609.029475][ T8092]  ? spin_bug+0x1d0/0x1d0
[  609.034079][ T8092]  ? net_namespace+0x12/0x40
[  609.038769][ T8092]  ? device_namespace+0x8d/0xc0
[  609.044083][ T8092]  kobject_add_internal+0x2c8/0x970
[  609.049308][ T8092]  kobject_add+0x16f/0x240
[  609.053756][ T8092]  ? kset_create_and_add+0x190/0x190
[  609.059052][ T8092]  ? do_raw_spin_unlock+0x173/0x230
[  609.064549][ T8092]  ? kobject_put+0xbe/0x440
[  609.069243][ T8092]  ? device_add+0xc35/0x1aa0
[  609.073842][ T8092]  device_add+0x289/0x1aa0
[  609.078268][ T8092]  ? device_initialize+0x510/0x510
[  609.083470][ T8092]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  609.090693][ T8092]  ? __init_waitqueue_head+0xca/0x150
[  609.096525][ T8092]  netdev_register_kobject+0x183/0x3f0
[  609.102791][ T8092]  register_netdevice+0xbe6/0x14b0
[  609.108042][ T8092]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  609.114410][ T8092]  ? validate_linkmsg+0x6fc/0x9c0
[  609.119547][ T8092]  br_dev_newlink+0x27/0x110
[  609.124148][ T8092]  ? br_changelink+0x1760/0x1760
[  609.129263][ T8092]  __rtnl_newlink+0x1173/0x1930
[  609.134174][ T8092]  ? rtnl_link_unregister+0x260/0x260
[  609.139892][ T8092]  rtnl_newlink+0x67/0xa0
[  609.144502][ T8092]  ? __rtnl_newlink+0x1930/0x1930
[  609.149535][ T8092]  rtnetlink_rcv_msg+0x3c7/0xe00
[  609.154599][ T8092]  ? rtnl_fill_vf+0x4a0/0x4a0
[  609.159507][ T8092]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  609.165608][ T8092]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  609.171629][ T8092]  netlink_rcv_skb+0x16b/0x440
[  609.176419][ T8092]  ? rtnl_fill_vf+0x4a0/0x4a0
[  609.181457][ T8092]  ? netlink_ack+0x1380/0x1380
[  609.186227][ T8092]  ? lock_sync+0x190/0x190
[  609.190840][ T8092]  ? netlink_deliver_tap+0x1a0/0xd00
[  609.196447][ T8092]  ? _copy_from_iter+0x2c1/0x10f0
[  609.201662][ T8092]  netlink_unicast+0x53b/0x810
[  609.206440][ T8092]  ? netlink_attachskb+0x880/0x880
[  609.211836][ T8092]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  609.218212][ T8092]  ? __phys_addr_symbol+0x30/0x70
[  609.223425][ T8092]  ? __check_object_size+0x323/0x730
[  609.229015][ T8092]  netlink_sendmsg+0x93c/0xe40
[  609.234090][ T8092]  ? netlink_unicast+0x810/0x810
[  609.239574][ T8092]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  609.244958][ T8092]  ? netlink_unicast+0x810/0x810
[  609.250086][ T8092]  __sock_sendmsg+0xd5/0x180
[  609.255301][ T8092]  ____sys_sendmsg+0x6ac/0x940
[  609.260358][ T8092]  ? copy_msghdr_from_user+0x10b/0x160
[  609.265854][ T8092]  ? kernel_sendmsg+0x50/0x50
[  609.270643][ T8092]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  609.276881][ T8092]  ___sys_sendmsg+0x135/0x1d0
[  609.282020][ T8092]  ? do_recvmmsg+0x740/0x740
[  609.286624][ T8092]  ? find_held_lock+0x2d/0x110
[  609.291446][ T8092]  ? preempt_count_sub+0x160/0x160
[  609.296837][ T8092]  ? __fget_light+0x1fc/0x260
[  609.301522][ T8092]  __sys_sendmsg+0x117/0x1e0
[  609.307166][ T8092]  ? __sys_sendmsg_sock+0x30/0x30
[  609.312390][ T8092]  ? syscall_enter_from_user_mode+0x7f/0x120
[  609.318400][ T8092]  do_syscall_64+0x40/0x110
[  609.323028][ T8092]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  609.329469][ T8092] RIP: 0033:0x7fb700fd30b9
[  609.333974][ T8092] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  609.353963][ T8092] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  609.362660][ T8092] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  609.371002][ T8092] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  609.379079][ T8092] RBP: 000000000009468d R08: 0000000000000000 R09: 0000000000000006
[  609.387165][ T8092] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  609.395450][ T8092] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  609.404066][ T8092]  </TASK>
[  609.407498][ T8092] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  609.455119][ T8092] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  609.464721][ T8092] CPU: 0 PID: 8092 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  609.475714][ T8092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  609.486376][ T8092] Call Trace:
[  609.489757][ T8092]  <TASK>
[  609.492877][ T8092]  dump_stack_lvl+0x125/0x1b0
[  609.499184][ T8092]  sysfs_warn_dup+0x7f/0xa0
[  609.503885][ T8092]  sysfs_create_dir_ns+0x249/0x2b0
[  609.509806][ T8092]  ? sysfs_create_mount_point+0xb0/0xb0
[  609.516279][ T8092]  ? spin_bug+0x1d0/0x1d0
[  609.521240][ T8092]  ? net_namespace+0x12/0x40
[  609.526019][ T8092]  ? device_namespace+0x8d/0xc0
[  609.531056][ T8092]  kobject_add_internal+0x2c8/0x970
[  609.536525][ T8092]  kobject_add+0x16f/0x240
[  609.541218][ T8092]  ? kset_create_and_add+0x190/0x190
[  609.546796][ T8092]  ? do_raw_spin_unlock+0x173/0x230
[  609.552281][ T8092]  ? kobject_put+0xbe/0x440
[  609.557083][ T8092]  ? device_add+0xc35/0x1aa0
[  609.562820][ T8092]  device_add+0x289/0x1aa0
[  609.567473][ T8092]  ? device_initialize+0x510/0x510
[  609.572887][ T8092]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  609.581472][ T8092]  ? __init_waitqueue_head+0xca/0x150
[  609.586860][ T8092]  netdev_register_kobject+0x183/0x3f0
[  609.592662][ T8092]  register_netdevice+0xbe6/0x14b0
[  609.597909][ T8092]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  609.603900][ T8092]  ? validate_linkmsg+0x6fc/0x9c0
[  609.608920][ T8092]  br_dev_newlink+0x27/0x110
[  609.613628][ T8092]  ? br_changelink+0x1760/0x1760
[  609.618762][ T8092]  __rtnl_newlink+0x1173/0x1930
[  609.623654][ T8092]  ? rtnl_link_unregister+0x260/0x260
[  609.629183][ T8092]  rtnl_newlink+0x67/0xa0
[  609.633702][ T8092]  ? __rtnl_newlink+0x1930/0x1930
[  609.638899][ T8092]  rtnetlink_rcv_msg+0x3c7/0xe00
[  609.644095][ T8092]  ? rtnl_fill_vf+0x4a0/0x4a0
[  609.649391][ T8092]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  609.655405][ T8092]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  609.661390][ T8092]  netlink_rcv_skb+0x16b/0x440
[  609.666545][ T8092]  ? rtnl_fill_vf+0x4a0/0x4a0
[  609.671347][ T8092]  ? netlink_ack+0x1380/0x1380
[  609.676486][ T8092]  ? lock_sync+0x190/0x190
[  609.680917][ T8092]  ? netlink_deliver_tap+0x1a0/0xd00
[  609.686402][ T8092]  ? _copy_from_iter+0x2c1/0x10f0
[  609.691521][ T8092]  netlink_unicast+0x53b/0x810
[  609.696452][ T8092]  ? netlink_attachskb+0x880/0x880
[  609.701599][ T8092]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  609.707699][ T8092]  ? __phys_addr_symbol+0x30/0x70
[  609.712916][ T8092]  ? __check_object_size+0x323/0x730
[  609.718493][ T8092]  netlink_sendmsg+0x93c/0xe40
[  609.724943][ T8092]  ? netlink_unicast+0x810/0x810
[  609.730236][ T8092]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  609.736179][ T8092]  ? netlink_unicast+0x810/0x810
[  609.741761][ T8092]  __sock_sendmsg+0xd5/0x180
[  609.747012][ T8092]  ____sys_sendmsg+0x6ac/0x940
[  609.752640][ T8092]  ? copy_msghdr_from_user+0x10b/0x160
[  609.758394][ T8092]  ? kernel_sendmsg+0x50/0x50
[  609.764229][ T8092]  ___sys_sendmsg+0x135/0x1d0
[  609.769143][ T8092]  ? do_recvmmsg+0x740/0x740
[  609.774205][ T8092]  ? find_held_lock+0x2d/0x110
[  609.779431][ T8092]  ? preempt_count_sub+0x160/0x160
[  609.784661][ T8092]  ? __fget_light+0x1fc/0x260
[  609.789388][ T8092]  __sys_sendmsg+0x117/0x1e0
[  609.794171][ T8092]  ? __sys_sendmsg_sock+0x30/0x30
[  609.799392][ T8092]  ? syscall_enter_from_user_mode+0x7f/0x120
[  609.808481][ T8092]  do_syscall_64+0x40/0x110
[  609.815964][ T8092]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  609.822920][ T8092] RIP: 0033:0x7fb700fd30b9
[  609.827617][ T8092] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  609.851542][ T8092] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  609.860225][ T8092] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  609.868726][ T8092] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  609.877777][ T8092] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  609.886082][ T8092] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  609.894593][ T8092] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  609.903031][ T8092]  </TASK>
[  609.909905][ T8092] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  609.982045][ T8093] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  609.992982][ T8093] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  610.002368][ T8093] CPU: 0 PID: 8093 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  610.012953][ T8093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  610.024428][ T8093] Call Trace:
[  610.027706][ T8093]  <TASK>
[  610.030657][ T8093]  dump_stack_lvl+0x125/0x1b0
[  610.035335][ T8093]  sysfs_warn_dup+0x7f/0xa0
[  610.040732][ T8093]  sysfs_create_dir_ns+0x249/0x2b0
[  610.045953][ T8093]  ? sysfs_create_mount_point+0xb0/0xb0
[  610.051532][ T8093]  ? spin_bug+0x1d0/0x1d0
[  610.056039][ T8093]  ? net_namespace+0x12/0x40
[  610.060804][ T8093]  ? device_namespace+0x8d/0xc0
[  610.065831][ T8093]  kobject_add_internal+0x2c8/0x970
[  610.071134][ T8093]  kobject_add+0x16f/0x240
[  610.075550][ T8093]  ? kset_create_and_add+0x190/0x190
[  610.081267][ T8093]  ? do_raw_spin_unlock+0x173/0x230
[  610.086807][ T8093]  ? kobject_put+0xbe/0x440
[  610.091580][ T8093]  ? device_add+0xc35/0x1aa0
[  610.096176][ T8093]  device_add+0x289/0x1aa0
[  610.100957][ T8093]  ? device_initialize+0x510/0x510
[  610.106103][ T8093]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  610.113397][ T8093]  ? __init_waitqueue_head+0xca/0x150
[  610.118785][ T8093]  netdev_register_kobject+0x183/0x3f0
[  610.124344][ T8093]  register_netdevice+0xbe6/0x14b0
[  610.129839][ T8093]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  610.135844][ T8093]  ? validate_linkmsg+0x6fc/0x9c0
[  610.141070][ T8093]  br_dev_newlink+0x27/0x110
[  610.146044][ T8093]  ? br_changelink+0x1760/0x1760
[  610.151014][ T8093]  __rtnl_newlink+0x1173/0x1930
[  610.155963][ T8093]  ? rtnl_link_unregister+0x260/0x260
[  610.161437][ T8093]  rtnl_newlink+0x67/0xa0
[  610.165940][ T8093]  ? __rtnl_newlink+0x1930/0x1930
[  610.170959][ T8093]  rtnetlink_rcv_msg+0x3c7/0xe00
[  610.176418][ T8093]  ? rtnl_fill_vf+0x4a0/0x4a0
[  610.181108][ T8093]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  610.187179][ T8093]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  610.193446][ T8093]  netlink_rcv_skb+0x16b/0x440
[  610.198238][ T8093]  ? rtnl_fill_vf+0x4a0/0x4a0
[  610.202911][ T8093]  ? netlink_ack+0x1380/0x1380
[  610.208139][ T8093]  ? lock_sync+0x190/0x190
[  610.212587][ T8093]  ? netlink_deliver_tap+0x1a0/0xd00
[  610.217972][ T8093]  ? _copy_from_iter+0x2c1/0x10f0
[  610.223098][ T8093]  netlink_unicast+0x53b/0x810
[  610.228238][ T8093]  ? netlink_attachskb+0x880/0x880
[  610.233700][ T8093]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  610.239961][ T8093]  ? __phys_addr_symbol+0x30/0x70
[  610.245010][ T8093]  ? __check_object_size+0x323/0x730
[  610.250322][ T8093]  netlink_sendmsg+0x93c/0xe40
[  610.255273][ T8093]  ? netlink_unicast+0x810/0x810
[  610.260298][ T8093]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  610.265788][ T8093]  ? netlink_unicast+0x810/0x810
[  610.270929][ T8093]  __sock_sendmsg+0xd5/0x180
[  610.275607][ T8093]  ____sys_sendmsg+0x6ac/0x940
[  610.280622][ T8093]  ? copy_msghdr_from_user+0x10b/0x160
[  610.286166][ T8093]  ? kernel_sendmsg+0x50/0x50
[  610.290864][ T8093]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  610.297122][ T8093]  ___sys_sendmsg+0x135/0x1d0
[  610.301886][ T8093]  ? do_recvmmsg+0x740/0x740
[  610.306565][ T8093]  ? find_held_lock+0x2d/0x110
[  610.311507][ T8093]  ? preempt_count_sub+0x160/0x160
[  610.316622][ T8093]  ? __fget_light+0x1fc/0x260
[  610.321384][ T8093]  __sys_sendmsg+0x117/0x1e0
[  610.326125][ T8093]  ? __sys_sendmsg_sock+0x30/0x30
[  610.331320][ T8093]  ? xfd_validate_state+0x5d/0x180
[  610.336526][ T8093]  ? syscall_enter_from_user_mode+0x7f/0x120
[  610.342718][ T8093]  do_syscall_64+0x40/0x110
[  610.347408][ T8093]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  610.353312][ T8093] RIP: 0033:0x7fb700fd30b9
[  610.357727][ T8093] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  610.378300][ T8093] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  610.387416][ T8093] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  610.395744][ T8093] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  610.403806][ T8093] RBP: 0000000000094a94 R08: 0000000000000000 R09: 0000000000000006
[  610.411954][ T8093] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  610.420287][ T8093] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  610.428448][ T8093]  </TASK>
[  610.432987][ T8093] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  610.497018][ T8093] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  610.506663][ T8093] CPU: 0 PID: 8093 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  610.517389][ T8093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  610.527662][ T8093] Call Trace:
[  610.531035][ T8093]  <TASK>
[  610.534233][ T8093]  dump_stack_lvl+0x125/0x1b0
[  610.539085][ T8093]  sysfs_warn_dup+0x7f/0xa0
[  610.544019][ T8093]  sysfs_create_dir_ns+0x249/0x2b0
[  610.549425][ T8093]  ? sysfs_create_mount_point+0xb0/0xb0
[  610.555038][ T8093]  ? spin_bug+0x1d0/0x1d0
[  610.560882][ T8093]  ? net_namespace+0x12/0x40
[  610.565757][ T8093]  ? device_namespace+0x8d/0xc0
[  610.570641][ T8093]  kobject_add_internal+0x2c8/0x970
[  610.576065][ T8093]  kobject_add+0x16f/0x240
[  610.580612][ T8093]  ? kset_create_and_add+0x190/0x190
[  610.586349][ T8093]  ? do_raw_spin_unlock+0x173/0x230
[  610.592420][ T8093]  ? kobject_put+0xbe/0x440
[  610.597113][ T8093]  ? device_add+0xc35/0x1aa0
[  610.602162][ T8093]  device_add+0x289/0x1aa0
[  610.606590][ T8093]  ? device_initialize+0x510/0x510
[  610.611981][ T8093]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  610.619060][ T8093]  ? __init_waitqueue_head+0xca/0x150
[  610.624562][ T8093]  netdev_register_kobject+0x183/0x3f0
[  610.630227][ T8093]  register_netdevice+0xbe6/0x14b0
[  610.635608][ T8093]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  610.641517][ T8093]  ? validate_linkmsg+0x6fc/0x9c0
[  610.646568][ T8093]  br_dev_newlink+0x27/0x110
[  610.651241][ T8093]  ? br_changelink+0x1760/0x1760
[  610.656191][ T8093]  __rtnl_newlink+0x1173/0x1930
[  610.661271][ T8093]  ? rtnl_link_unregister+0x260/0x260
[  610.666672][ T8093]  rtnl_newlink+0x67/0xa0
[  610.671257][ T8093]  ? __rtnl_newlink+0x1930/0x1930
[  610.676637][ T8093]  rtnetlink_rcv_msg+0x3c7/0xe00
[  610.681605][ T8093]  ? rtnl_fill_vf+0x4a0/0x4a0
[  610.686290][ T8093]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  610.692283][ T8093]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  610.698385][ T8093]  netlink_rcv_skb+0x16b/0x440
[  610.703185][ T8093]  ? rtnl_fill_vf+0x4a0/0x4a0
[  610.707919][ T8093]  ? netlink_ack+0x1380/0x1380
[  610.713081][ T8093]  ? lock_sync+0x190/0x190
[  610.717649][ T8093]  ? netlink_deliver_tap+0x1a0/0xd00
[  610.723135][ T8093]  ? _copy_from_iter+0x2c1/0x10f0
[  610.728432][ T8093]  netlink_unicast+0x53b/0x810
[  610.733386][ T8093]  ? netlink_attachskb+0x880/0x880
[  610.738594][ T8093]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  610.744586][ T8093]  ? __phys_addr_symbol+0x30/0x70
[  610.751011][ T8093]  ? __check_object_size+0x323/0x730
[  610.756572][ T8093]  netlink_sendmsg+0x93c/0xe40
[  610.761900][ T8093]  ? netlink_unicast+0x810/0x810
[  610.767490][ T8093]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  610.772824][ T8093]  ? netlink_unicast+0x810/0x810
[  610.777978][ T8093]  __sock_sendmsg+0xd5/0x180
[  610.782758][ T8093]  ____sys_sendmsg+0x6ac/0x940
[  610.787849][ T8093]  ? copy_msghdr_from_user+0x10b/0x160
[  610.793524][ T8093]  ? kernel_sendmsg+0x50/0x50
[  610.798464][ T8093]  ? hlock_class+0x4e/0x130
[  610.803176][ T8093]  ? __lock_acquire+0x14e0/0x3b10
[  610.808953][ T8093]  ___sys_sendmsg+0x135/0x1d0
[  610.814695][ T8093]  ? do_recvmmsg+0x740/0x740
[  610.819660][ T8093]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  610.825687][ T8093]  ? find_held_lock+0x2d/0x110
[  610.830787][ T8093]  ? __fget_light+0x1fc/0x260
[  610.835480][ T8093]  __sys_sendmsg+0x117/0x1e0
[  610.840351][ T8093]  ? __sys_sendmsg_sock+0x30/0x30
[  610.845385][ T8093]  ? xfd_validate_state+0x5d/0x180
[  610.850805][ T8093]  ? syscall_enter_from_user_mode+0x7f/0x120
[  610.857076][ T8093]  do_syscall_64+0x40/0x110
[  610.861624][ T8093]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  610.867552][ T8093] RIP: 0033:0x7fb700fd30b9
[  610.872246][ T8093] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  610.892559][ T8093] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  610.901105][ T8093] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  610.909097][ T8093] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  610.917169][ T8093] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  610.925492][ T8093] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  610.933952][ T8093] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  610.942119][ T8093]  </TASK>
[  610.945609][ T8093] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  611.010873][ T8094] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  611.024783][ T8094] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  611.033944][ T8094] CPU: 0 PID: 8094 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  611.044286][ T8094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  611.054446][ T8094] Call Trace:
[  611.057738][ T8094]  <TASK>
[  611.060676][ T8094]  dump_stack_lvl+0x125/0x1b0
[  611.065461][ T8094]  sysfs_warn_dup+0x7f/0xa0
[  611.070412][ T8094]  sysfs_create_dir_ns+0x249/0x2b0
[  611.075970][ T8094]  ? sysfs_create_mount_point+0xb0/0xb0
[  611.081547][ T8094]  ? spin_bug+0x1d0/0x1d0
[  611.086244][ T8094]  ? net_namespace+0x12/0x40
[  611.091185][ T8094]  ? device_namespace+0x8d/0xc0
[  611.096492][ T8094]  kobject_add_internal+0x2c8/0x970
[  611.101884][ T8094]  kobject_add+0x16f/0x240
[  611.106926][ T8094]  ? kset_create_and_add+0x190/0x190
[  611.112502][ T8094]  ? do_raw_spin_unlock+0x173/0x230
[  611.117895][ T8094]  ? kobject_put+0xbe/0x440
[  611.122773][ T8094]  ? device_add+0xc35/0x1aa0
[  611.127569][ T8094]  device_add+0x289/0x1aa0
[  611.132087][ T8094]  ? device_initialize+0x510/0x510
[  611.137373][ T8094]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  611.144556][ T8094]  ? __init_waitqueue_head+0xca/0x150
[  611.150320][ T8094]  netdev_register_kobject+0x183/0x3f0
[  611.156169][ T8094]  register_netdevice+0xbe6/0x14b0
[  611.162092][ T8094]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  611.168357][ T8094]  ? validate_linkmsg+0x6fc/0x9c0
[  611.173653][ T8094]  br_dev_newlink+0x27/0x110
[  611.178348][ T8094]  ? br_changelink+0x1760/0x1760
[  611.183638][ T8094]  __rtnl_newlink+0x1173/0x1930
[  611.188598][ T8094]  ? rtnl_link_unregister+0x260/0x260
[  611.194115][ T8094]  rtnl_newlink+0x67/0xa0
[  611.198471][ T8094]  ? __rtnl_newlink+0x1930/0x1930
[  611.203522][ T8094]  rtnetlink_rcv_msg+0x3c7/0xe00
[  611.208565][ T8094]  ? rtnl_fill_vf+0x4a0/0x4a0
[  611.213334][ T8094]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  611.219508][ T8094]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  611.225595][ T8094]  netlink_rcv_skb+0x16b/0x440
[  611.230460][ T8094]  ? rtnl_fill_vf+0x4a0/0x4a0
[  611.235241][ T8094]  ? netlink_ack+0x1380/0x1380
[  611.240361][ T8094]  ? lock_sync+0x190/0x190
[  611.245328][ T8094]  ? netlink_deliver_tap+0x1a0/0xd00
[  611.250717][ T8094]  ? _copy_from_iter+0x2c1/0x10f0
[  611.256021][ T8094]  netlink_unicast+0x53b/0x810
[  611.260800][ T8094]  ? netlink_attachskb+0x880/0x880
[  611.266220][ T8094]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  611.272753][ T8094]  ? __phys_addr_symbol+0x30/0x70
[  611.277889][ T8094]  ? __check_object_size+0x323/0x730
[  611.283301][ T8094]  netlink_sendmsg+0x93c/0xe40
[  611.288177][ T8094]  ? netlink_unicast+0x810/0x810
[  611.293218][ T8094]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  611.298510][ T8094]  ? netlink_unicast+0x810/0x810
[  611.303464][ T8094]  __sock_sendmsg+0xd5/0x180
[  611.308079][ T8094]  ____sys_sendmsg+0x6ac/0x940
[  611.312950][ T8094]  ? copy_msghdr_from_user+0x10b/0x160
[  611.318445][ T8094]  ? kernel_sendmsg+0x50/0x50
[  611.323156][ T8094]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  611.329157][ T8094]  ___sys_sendmsg+0x135/0x1d0
[  611.333853][ T8094]  ? do_recvmmsg+0x740/0x740
[  611.338450][ T8094]  ? find_held_lock+0x2d/0x110
[  611.343238][ T8094]  ? preempt_count_sub+0x160/0x160
[  611.348366][ T8094]  ? __fget_light+0x1fc/0x260
[  611.353260][ T8094]  __sys_sendmsg+0x117/0x1e0
[  611.358052][ T8094]  ? __sys_sendmsg_sock+0x30/0x30
[  611.363186][ T8094]  ? syscall_enter_from_user_mode+0x7f/0x120
[  611.369371][ T8094]  do_syscall_64+0x40/0x110
[  611.374164][ T8094]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  611.380504][ T8094] RIP: 0033:0x7fb700fd30b9
[  611.385180][ T8094] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  611.405224][ T8094] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  611.413942][ T8094] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  611.422088][ T8094] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  611.430324][ T8094] RBP: 0000000000094e91 R08: 0000000000000000 R09: 0000000000000006
[  611.438340][ T8094] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  611.446487][ T8094] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  611.454477][ T8094]  </TASK>
[  611.458060][ T8094] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  611.525874][ T8094] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  611.536258][ T8094] CPU: 0 PID: 8094 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  611.547315][ T8094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  611.557625][ T8094] Call Trace:
[  611.561075][ T8094]  <TASK>
[  611.564013][ T8094]  dump_stack_lvl+0x125/0x1b0
[  611.568859][ T8094]  sysfs_warn_dup+0x7f/0xa0
[  611.573357][ T8094]  sysfs_create_dir_ns+0x249/0x2b0
[  611.578726][ T8094]  ? sysfs_create_mount_point+0xb0/0xb0
[  611.584286][ T8094]  ? spin_bug+0x1d0/0x1d0
[  611.588795][ T8094]  ? net_namespace+0x12/0x40
[  611.593659][ T8094]  ? device_namespace+0x8d/0xc0
[  611.598616][ T8094]  kobject_add_internal+0x2c8/0x970
[  611.603830][ T8094]  kobject_add+0x16f/0x240
[  611.608340][ T8094]  ? kset_create_and_add+0x190/0x190
[  611.613815][ T8094]  ? do_raw_spin_unlock+0x173/0x230
[  611.619014][ T8094]  ? kobject_put+0xbe/0x440
[  611.623958][ T8094]  ? device_add+0xc35/0x1aa0
[  611.628561][ T8094]  device_add+0x289/0x1aa0
[  611.633162][ T8094]  ? device_initialize+0x510/0x510
[  611.638363][ T8094]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  611.645504][ T8094]  ? __init_waitqueue_head+0xca/0x150
[  611.651116][ T8094]  netdev_register_kobject+0x183/0x3f0
[  611.656955][ T8094]  register_netdevice+0xbe6/0x14b0
[  611.662186][ T8094]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  611.668115][ T8094]  ? validate_linkmsg+0x6fc/0x9c0
[  611.673150][ T8094]  br_dev_newlink+0x27/0x110
[  611.677847][ T8094]  ? br_changelink+0x1760/0x1760
[  611.683310][ T8094]  __rtnl_newlink+0x1173/0x1930
[  611.688192][ T8094]  ? rtnl_link_unregister+0x260/0x260
[  611.694391][ T8094]  rtnl_newlink+0x67/0xa0
[  611.698915][ T8094]  ? __rtnl_newlink+0x1930/0x1930
[  611.704069][ T8094]  rtnetlink_rcv_msg+0x3c7/0xe00
[  611.709045][ T8094]  ? rtnl_fill_vf+0x4a0/0x4a0
[  611.714713][ T8094]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  611.720986][ T8094]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  611.726986][ T8094]  netlink_rcv_skb+0x16b/0x440
[  611.731790][ T8094]  ? rtnl_fill_vf+0x4a0/0x4a0
[  611.736659][ T8094]  ? netlink_ack+0x1380/0x1380
[  611.741431][ T8094]  ? lock_sync+0x190/0x190
[  611.745964][ T8094]  ? netlink_deliver_tap+0x1a0/0xd00
[  611.751438][ T8094]  ? _copy_from_iter+0x2c1/0x10f0
[  611.756736][ T8094]  netlink_unicast+0x53b/0x810
[  611.761778][ T8094]  ? netlink_attachskb+0x880/0x880
[  611.766992][ T8094]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  611.772997][ T8094]  ? __phys_addr_symbol+0x30/0x70
[  611.778128][ T8094]  ? __check_object_size+0x323/0x730
[  611.783608][ T8094]  netlink_sendmsg+0x93c/0xe40
[  611.788477][ T8094]  ? netlink_unicast+0x810/0x810
[  611.793696][ T8094]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  611.799082][ T8094]  ? netlink_unicast+0x810/0x810
[  611.804039][ T8094]  __sock_sendmsg+0xd5/0x180
[  611.808817][ T8094]  ____sys_sendmsg+0x6ac/0x940
[  611.813759][ T8094]  ? copy_msghdr_from_user+0x10b/0x160
[  611.819226][ T8094]  ? kernel_sendmsg+0x50/0x50
[  611.824095][ T8094]  ___sys_sendmsg+0x135/0x1d0
[  611.828792][ T8094]  ? do_recvmmsg+0x740/0x740
[  611.833411][ T8094]  ? find_held_lock+0x2d/0x110
[  611.838215][ T8094]  ? preempt_count_sub+0x160/0x160
[  611.843368][ T8094]  ? __fget_light+0x1fc/0x260
[  611.848760][ T8094]  __sys_sendmsg+0x117/0x1e0
[  611.853541][ T8094]  ? __sys_sendmsg_sock+0x30/0x30
[  611.858626][ T8094]  ? syscall_enter_from_user_mode+0x7f/0x120
[  611.864818][ T8094]  do_syscall_64+0x40/0x110
[  611.869341][ T8094]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  611.876028][ T8094] RIP: 0033:0x7fb700fd30b9
[  611.880456][ T8094] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  611.900262][ T8094] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  611.909223][ T8094] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  611.917372][ T8094] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  611.925448][ T8094] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  611.933693][ T8094] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  611.941839][ T8094] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  611.949838][ T8094]  </TASK>
[  611.953100][ T8094] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  612.001945][ T8095] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  612.012847][ T8095] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  612.022174][ T8095] CPU: 0 PID: 8095 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  612.032337][ T8095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  612.042761][ T8095] Call Trace:
[  612.046083][ T8095]  <TASK>
[  612.049022][ T8095]  dump_stack_lvl+0x125/0x1b0
[  612.053901][ T8095]  sysfs_warn_dup+0x7f/0xa0
[  612.058506][ T8095]  sysfs_create_dir_ns+0x249/0x2b0
[  612.064166][ T8095]  ? sysfs_create_mount_point+0xb0/0xb0
[  612.069954][ T8095]  ? spin_bug+0x1d0/0x1d0
[  612.074316][ T8095]  ? net_namespace+0x12/0x40
[  612.079460][ T8095]  ? device_namespace+0x8d/0xc0
[  612.084522][ T8095]  kobject_add_internal+0x2c8/0x970
[  612.089770][ T8095]  kobject_add+0x16f/0x240
[  612.095741][ T8095]  ? kset_create_and_add+0x190/0x190
[  612.102002][ T8095]  ? do_raw_spin_unlock+0x173/0x230
[  612.107392][ T8095]  ? kobject_put+0xbe/0x440
[  612.112834][ T8095]  ? device_add+0xc35/0x1aa0
[  612.117700][ T8095]  device_add+0x289/0x1aa0
[  612.122209][ T8095]  ? device_initialize+0x510/0x510
[  612.127325][ T8095]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  612.134204][ T8095]  ? __init_waitqueue_head+0xca/0x150
[  612.139594][ T8095]  netdev_register_kobject+0x183/0x3f0
[  612.145250][ T8095]  register_netdevice+0xbe6/0x14b0
[  612.150789][ T8095]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  612.157740][ T8095]  ? validate_linkmsg+0x6fc/0x9c0
[  612.163307][ T8095]  br_dev_newlink+0x27/0x110
[  612.168085][ T8095]  ? br_changelink+0x1760/0x1760
[  612.173373][ T8095]  __rtnl_newlink+0x1173/0x1930
[  612.178331][ T8095]  ? rtnl_link_unregister+0x260/0x260
[  612.183860][ T8095]  rtnl_newlink+0x67/0xa0
[  612.188220][ T8095]  ? __rtnl_newlink+0x1930/0x1930
[  612.193254][ T8095]  rtnetlink_rcv_msg+0x3c7/0xe00
[  612.198206][ T8095]  ? rtnl_fill_vf+0x4a0/0x4a0
[  612.202983][ T8095]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  612.209284][ T8095]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  612.215577][ T8095]  netlink_rcv_skb+0x16b/0x440
[  612.220561][ T8095]  ? rtnl_fill_vf+0x4a0/0x4a0
[  612.225882][ T8095]  ? netlink_ack+0x1380/0x1380
[  612.231116][ T8095]  ? lock_sync+0x190/0x190
[  612.235597][ T8095]  ? netlink_deliver_tap+0x1a0/0xd00
[  612.241185][ T8095]  ? _copy_from_iter+0x2c1/0x10f0
[  612.246328][ T8095]  netlink_unicast+0x53b/0x810
[  612.251230][ T8095]  ? netlink_attachskb+0x880/0x880
[  612.256444][ T8095]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  612.262348][ T8095]  ? __phys_addr_symbol+0x30/0x70
[  612.267384][ T8095]  ? __check_object_size+0x323/0x730
[  612.272769][ T8095]  netlink_sendmsg+0x93c/0xe40
[  612.277642][ T8095]  ? netlink_unicast+0x810/0x810
[  612.282594][ T8095]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  612.287976][ T8095]  ? netlink_unicast+0x810/0x810
[  612.293100][ T8095]  __sock_sendmsg+0xd5/0x180
[  612.297703][ T8095]  ____sys_sendmsg+0x6ac/0x940
[  612.302561][ T8095]  ? copy_msghdr_from_user+0x10b/0x160
[  612.308056][ T8095]  ? kernel_sendmsg+0x50/0x50
[  612.312851][ T8095]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  612.318978][ T8095]  ___sys_sendmsg+0x135/0x1d0
[  612.323764][ T8095]  ? do_recvmmsg+0x740/0x740
[  612.328361][ T8095]  ? find_held_lock+0x2d/0x110
[  612.333756][ T8095]  ? preempt_count_sub+0x160/0x160
[  612.339077][ T8095]  ? __fget_light+0x1fc/0x260
[  612.343957][ T8095]  __sys_sendmsg+0x117/0x1e0
[  612.349457][ T8095]  ? __sys_sendmsg_sock+0x30/0x30
[  612.355099][ T8095]  ? xfd_validate_state+0x5d/0x180
[  612.360252][ T8095]  ? syscall_enter_from_user_mode+0x7f/0x120
[  612.366709][ T8095]  do_syscall_64+0x40/0x110
[  612.371753][ T8095]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  612.378482][ T8095] RIP: 0033:0x7fb700fd30b9
[  612.383002][ T8095] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  612.402847][ T8095] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  612.411277][ T8095] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  612.419955][ T8095] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  612.427953][ T8095] RBP: 0000000000095296 R08: 0000000000000000 R09: 0000000000000006
[  612.436013][ T8095] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  612.444171][ T8095] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  612.452428][ T8095]  </TASK>
[  612.456446][ T8095] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  612.525890][ T8095] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  612.535311][ T8095] CPU: 0 PID: 8095 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  612.545670][ T8095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  612.555914][ T8095] Call Trace:
[  612.559188][ T8095]  <TASK>
[  612.562109][ T8095]  dump_stack_lvl+0x125/0x1b0
[  612.566887][ T8095]  sysfs_warn_dup+0x7f/0xa0
[  612.571574][ T8095]  sysfs_create_dir_ns+0x249/0x2b0
[  612.576690][ T8095]  ? sysfs_create_mount_point+0xb0/0xb0
[  612.582420][ T8095]  ? spin_bug+0x1d0/0x1d0
[  612.586847][ T8095]  ? net_namespace+0x12/0x40
[  612.592931][ T8095]  ? device_namespace+0x8d/0xc0
[  612.597982][ T8095]  kobject_add_internal+0x2c8/0x970
[  612.603197][ T8095]  kobject_add+0x16f/0x240
[  612.607709][ T8095]  ? kset_create_and_add+0x190/0x190
[  612.613004][ T8095]  ? do_raw_spin_unlock+0x173/0x230
[  612.618203][ T8095]  ? kobject_put+0xbe/0x440
[  612.622828][ T8095]  ? device_add+0xc35/0x1aa0
[  612.627540][ T8095]  device_add+0x289/0x1aa0
[  612.632234][ T8095]  ? device_initialize+0x510/0x510
[  612.637421][ T8095]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  612.644395][ T8095]  ? __init_waitqueue_head+0xca/0x150
[  612.649780][ T8095]  netdev_register_kobject+0x183/0x3f0
[  612.655340][ T8095]  register_netdevice+0xbe6/0x14b0
[  612.660550][ T8095]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  612.666739][ T8095]  ? validate_linkmsg+0x6fc/0x9c0
[  612.671801][ T8095]  br_dev_newlink+0x27/0x110
[  612.676501][ T8095]  ? br_changelink+0x1760/0x1760
[  612.681530][ T8095]  __rtnl_newlink+0x1173/0x1930
[  612.686661][ T8095]  ? rtnl_link_unregister+0x260/0x260
[  612.692154][ T8095]  rtnl_newlink+0x67/0xa0
[  612.696609][ T8095]  ? __rtnl_newlink+0x1930/0x1930
[  612.701643][ T8095]  rtnetlink_rcv_msg+0x3c7/0xe00
[  612.706598][ T8095]  ? rtnl_fill_vf+0x4a0/0x4a0
[  612.711715][ T8095]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  612.717707][ T8095]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  612.723706][ T8095]  netlink_rcv_skb+0x16b/0x440
[  612.728506][ T8095]  ? rtnl_fill_vf+0x4a0/0x4a0
[  612.733727][ T8095]  ? netlink_ack+0x1380/0x1380
[  612.738690][ T8095]  ? lock_sync+0x190/0x190
[  612.743136][ T8095]  ? netlink_deliver_tap+0x1a0/0xd00
[  612.748664][ T8095]  ? _copy_from_iter+0x2c1/0x10f0
[  612.753719][ T8095]  netlink_unicast+0x53b/0x810
[  612.758768][ T8095]  ? netlink_attachskb+0x880/0x880
[  612.763900][ T8095]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  612.770149][ T8095]  ? __phys_addr_symbol+0x30/0x70
[  612.776069][ T8095]  ? __check_object_size+0x323/0x730
[  612.781540][ T8095]  netlink_sendmsg+0x93c/0xe40
[  612.786407][ T8095]  ? netlink_unicast+0x810/0x810
[  612.791534][ T8095]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  612.797448][ T8095]  ? netlink_unicast+0x810/0x810
[  612.802485][ T8095]  __sock_sendmsg+0xd5/0x180
[  612.807964][ T8095]  ____sys_sendmsg+0x6ac/0x940
[  612.813122][ T8095]  ? copy_msghdr_from_user+0x10b/0x160
[  612.819308][ T8095]  ? kernel_sendmsg+0x50/0x50
[  612.824212][ T8095]  ___sys_sendmsg+0x135/0x1d0
[  612.829376][ T8095]  ? do_recvmmsg+0x740/0x740
[  612.834173][ T8095]  ? find_held_lock+0x2d/0x110
[  612.839252][ T8095]  ? preempt_count_sub+0x160/0x160
[  612.844659][ T8095]  ? __fget_light+0x1fc/0x260
[  612.849531][ T8095]  __sys_sendmsg+0x117/0x1e0
[  612.854396][ T8095]  ? __sys_sendmsg_sock+0x30/0x30
[  612.860842][ T8095]  ? syscall_enter_from_user_mode+0x7f/0x120
[  612.867048][ T8095]  do_syscall_64+0x40/0x110
[  612.871744][ T8095]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  612.877739][ T8095] RIP: 0033:0x7fb700fd30b9
[  612.882241][ T8095] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  612.903509][ T8095] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  612.912643][ T8095] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  612.920910][ T8095] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  612.928997][ T8095] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  612.938057][ T8095] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  612.946406][ T8095] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  612.954487][ T8095]  </TASK>
[  612.958473][ T8095] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  613.020819][ T8096] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  613.033485][ T8096] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  613.043855][ T8096] CPU: 0 PID: 8096 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  613.054805][ T8096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  613.065736][ T8096] Call Trace:
[  613.069019][ T8096]  <TASK>
[  613.071950][ T8096]  dump_stack_lvl+0x125/0x1b0
[  613.076726][ T8096]  sysfs_warn_dup+0x7f/0xa0
[  613.081238][ T8096]  sysfs_create_dir_ns+0x249/0x2b0
[  613.086559][ T8096]  ? sysfs_create_mount_point+0xb0/0xb0
[  613.092385][ T8096]  ? spin_bug+0x1d0/0x1d0
[  613.096907][ T8096]  ? net_namespace+0x12/0x40
[  613.101766][ T8096]  ? device_namespace+0x8d/0xc0
[  613.107001][ T8096]  kobject_add_internal+0x2c8/0x970
[  613.112217][ T8096]  kobject_add+0x16f/0x240
[  613.116927][ T8096]  ? kset_create_and_add+0x190/0x190
[  613.122319][ T8096]  ? do_raw_spin_unlock+0x173/0x230
[  613.128046][ T8096]  ? kobject_put+0xbe/0x440
[  613.132822][ T8096]  ? device_add+0xc35/0x1aa0
[  613.137689][ T8096]  device_add+0x289/0x1aa0
[  613.142227][ T8096]  ? device_initialize+0x510/0x510
[  613.147343][ T8096]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  613.154384][ T8096]  ? __init_waitqueue_head+0xca/0x150
[  613.160205][ T8096]  netdev_register_kobject+0x183/0x3f0
[  613.165775][ T8096]  register_netdevice+0xbe6/0x14b0
[  613.171016][ T8096]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  613.177300][ T8096]  ? validate_linkmsg+0x6fc/0x9c0
[  613.182426][ T8096]  br_dev_newlink+0x27/0x110
[  613.187028][ T8096]  ? br_changelink+0x1760/0x1760
[  613.192083][ T8096]  __rtnl_newlink+0x1173/0x1930
[  613.196953][ T8096]  ? rtnl_link_unregister+0x260/0x260
[  613.202356][ T8096]  rtnl_newlink+0x67/0xa0
[  613.206865][ T8096]  ? __rtnl_newlink+0x1930/0x1930
[  613.211983][ T8096]  rtnetlink_rcv_msg+0x3c7/0xe00
[  613.217112][ T8096]  ? rtnl_fill_vf+0x4a0/0x4a0
[  613.221891][ T8096]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  613.228066][ T8096]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  613.234153][ T8096]  netlink_rcv_skb+0x16b/0x440
[  613.239389][ T8096]  ? rtnl_fill_vf+0x4a0/0x4a0
[  613.244317][ T8096]  ? netlink_ack+0x1380/0x1380
[  613.249365][ T8096]  ? lock_sync+0x190/0x190
[  613.253989][ T8096]  ? netlink_deliver_tap+0x1a0/0xd00
[  613.259281][ T8096]  ? _copy_from_iter+0x2c1/0x10f0
[  613.264589][ T8096]  netlink_unicast+0x53b/0x810
[  613.269985][ T8096]  ? netlink_attachskb+0x880/0x880
[  613.275304][ T8096]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  613.281767][ T8096]  ? __phys_addr_symbol+0x30/0x70
[  613.287250][ T8096]  ? __check_object_size+0x323/0x730
[  613.293028][ T8096]  netlink_sendmsg+0x93c/0xe40
[  613.298072][ T8096]  ? netlink_unicast+0x810/0x810
[  613.303230][ T8096]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  613.308613][ T8096]  ? netlink_unicast+0x810/0x810
[  613.313745][ T8096]  __sock_sendmsg+0xd5/0x180
[  613.318644][ T8096]  ____sys_sendmsg+0x6ac/0x940
[  613.323601][ T8096]  ? copy_msghdr_from_user+0x10b/0x160
[  613.329247][ T8096]  ? kernel_sendmsg+0x50/0x50
[  613.334199][ T8096]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  613.340690][ T8096]  ___sys_sendmsg+0x135/0x1d0
[  613.346020][ T8096]  ? do_recvmmsg+0x740/0x740
[  613.350709][ T8096]  ? find_held_lock+0x2d/0x110
[  613.355769][ T8096]  ? preempt_count_sub+0x160/0x160
[  613.360913][ T8096]  ? __fget_light+0x1fc/0x260
[  613.365768][ T8096]  __sys_sendmsg+0x117/0x1e0
[  613.370464][ T8096]  ? __sys_sendmsg_sock+0x30/0x30
[  613.375510][ T8096]  ? xfd_validate_state+0x5d/0x180
[  613.380904][ T8096]  ? syscall_enter_from_user_mode+0x7f/0x120
[  613.386908][ T8096]  do_syscall_64+0x40/0x110
[  613.391527][ T8096]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  613.397713][ T8096] RIP: 0033:0x7fb700fd30b9
[  613.402162][ T8096] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  613.423095][ T8096] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  613.431540][ T8096] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  613.439887][ T8096] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  613.448198][ T8096] RBP: 0000000000095675 R08: 0000000000000000 R09: 0000000000000006
[  613.456575][ T8096] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  613.465589][ T8096] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  613.474023][ T8096]  </TASK>
[  613.478907][ T8096] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  613.538569][ T8096] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  613.548650][ T8096] CPU: 1 PID: 8096 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  613.559232][ T8096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  613.570080][ T8096] Call Trace:
[  613.573375][ T8096]  <TASK>
[  613.576371][ T8096]  dump_stack_lvl+0x125/0x1b0
[  613.581305][ T8096]  sysfs_warn_dup+0x7f/0xa0
[  613.586012][ T8096]  sysfs_create_dir_ns+0x249/0x2b0
[  613.591679][ T8096]  ? sysfs_create_mount_point+0xb0/0xb0
[  613.597351][ T8096]  ? spin_bug+0x1d0/0x1d0
[  613.601947][ T8096]  ? net_namespace+0x12/0x40
[  613.606853][ T8096]  ? device_namespace+0x8d/0xc0
[  613.612091][ T8096]  kobject_add_internal+0x2c8/0x970
[  613.617417][ T8096]  kobject_add+0x16f/0x240
[  613.621859][ T8096]  ? kset_create_and_add+0x190/0x190
[  613.627264][ T8096]  ? do_raw_spin_unlock+0x173/0x230
[  613.632506][ T8096]  ? kobject_put+0xbe/0x440
[  613.638252][ T8096]  ? device_add+0xc35/0x1aa0
[  613.642939][ T8096]  device_add+0x289/0x1aa0
[  613.647355][ T8096]  ? device_initialize+0x510/0x510
[  613.652847][ T8096]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  613.659800][ T8096]  ? __init_waitqueue_head+0xca/0x150
[  613.665290][ T8096]  netdev_register_kobject+0x183/0x3f0
[  613.671039][ T8096]  register_netdevice+0xbe6/0x14b0
[  613.676540][ T8096]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  613.685072][ T8096]  ? validate_linkmsg+0x6fc/0x9c0
[  613.690454][ T8096]  br_dev_newlink+0x27/0x110
[  613.695143][ T8096]  ? br_changelink+0x1760/0x1760
[  613.700276][ T8096]  __rtnl_newlink+0x1173/0x1930
[  613.705163][ T8096]  ? rtnl_link_unregister+0x260/0x260
[  613.710673][ T8096]  rtnl_newlink+0x67/0xa0
[  613.715755][ T8096]  ? __rtnl_newlink+0x1930/0x1930
[  613.721011][ T8096]  rtnetlink_rcv_msg+0x3c7/0xe00
[  613.725966][ T8096]  ? rtnl_fill_vf+0x4a0/0x4a0
[  613.731169][ T8096]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  613.737355][ T8096]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  613.743616][ T8096]  netlink_rcv_skb+0x16b/0x440
[  613.748382][ T8096]  ? rtnl_fill_vf+0x4a0/0x4a0
[  613.753058][ T8096]  ? netlink_ack+0x1380/0x1380
[  613.758448][ T8096]  ? lock_sync+0x190/0x190
[  613.762991][ T8096]  ? netlink_deliver_tap+0x1a0/0xd00
[  613.768663][ T8096]  ? _copy_from_iter+0x2c1/0x10f0
[  613.774232][ T8096]  netlink_unicast+0x53b/0x810
[  613.779105][ T8096]  ? netlink_attachskb+0x880/0x880
[  613.784956][ T8096]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  613.790847][ T8096]  ? __phys_addr_symbol+0x30/0x70
[  613.796999][ T8096]  ? __check_object_size+0x323/0x730
[  613.802469][ T8096]  netlink_sendmsg+0x93c/0xe40
[  613.807677][ T8096]  ? netlink_unicast+0x810/0x810
[  613.812887][ T8096]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  613.818679][ T8096]  ? netlink_unicast+0x810/0x810
[  613.823855][ T8096]  __sock_sendmsg+0xd5/0x180
[  613.828845][ T8096]  ____sys_sendmsg+0x6ac/0x940
[  613.833977][ T8096]  ? copy_msghdr_from_user+0x10b/0x160
[  613.839543][ T8096]  ? kernel_sendmsg+0x50/0x50
[  613.844660][ T8096]  ? hlock_class+0x4e/0x130
[  613.849426][ T8096]  ? __lock_acquire+0x14e0/0x3b10
[  613.855097][ T8096]  ___sys_sendmsg+0x135/0x1d0
[  613.860346][ T8096]  ? do_recvmmsg+0x740/0x740
[  613.865401][ T8096]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  613.871573][ T8096]  ? find_held_lock+0x2d/0x110
[  613.876618][ T8096]  ? __fget_light+0x1fc/0x260
[  613.881401][ T8096]  __sys_sendmsg+0x117/0x1e0
[  613.886256][ T8096]  ? __sys_sendmsg_sock+0x30/0x30
[  613.891555][ T8096]  ? xfd_validate_state+0x5d/0x180
[  613.896929][ T8096]  ? syscall_enter_from_user_mode+0x7f/0x120
[  613.903376][ T8096]  do_syscall_64+0x40/0x110
[  613.907879][ T8096]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  613.914946][ T8096] RIP: 0033:0x7fb700fd30b9
[  613.919715][ T8096] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  613.940031][ T8096] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  613.949169][ T8096] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  613.958012][ T8096] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  613.966408][ T8096] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  613.974378][ T8096] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  613.983309][ T8096] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  613.992012][ T8096]  </TASK>
[  613.997068][ T8096] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  614.082189][ T8097] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  614.093803][ T8097] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  614.104707][ T8097] CPU: 1 PID: 8097 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  614.116208][ T8097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  614.127234][ T8097] Call Trace:
[  614.130820][ T8097]  <TASK>
[  614.133868][ T8097]  dump_stack_lvl+0x125/0x1b0
[  614.138902][ T8097]  sysfs_warn_dup+0x7f/0xa0
[  614.143940][ T8097]  sysfs_create_dir_ns+0x249/0x2b0
[  614.149082][ T8097]  ? sysfs_create_mount_point+0xb0/0xb0
[  614.155156][ T8097]  ? spin_bug+0x1d0/0x1d0
[  614.159491][ T8097]  ? net_namespace+0x12/0x40
[  614.164361][ T8097]  ? device_namespace+0x8d/0xc0
[  614.169662][ T8097]  kobject_add_internal+0x2c8/0x970
[  614.175324][ T8097]  kobject_add+0x16f/0x240
[  614.180017][ T8097]  ? kset_create_and_add+0x190/0x190
[  614.185590][ T8097]  ? do_raw_spin_unlock+0x173/0x230
[  614.191315][ T8097]  ? kobject_put+0xbe/0x440
[  614.195934][ T8097]  ? device_add+0xc35/0x1aa0
[  614.200541][ T8097]  device_add+0x289/0x1aa0
[  614.205166][ T8097]  ? device_initialize+0x510/0x510
[  614.211177][ T8097]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  614.219628][ T8097]  ? __init_waitqueue_head+0xca/0x150
[  614.225301][ T8097]  netdev_register_kobject+0x183/0x3f0
[  614.231176][ T8097]  register_netdevice+0xbe6/0x14b0
[  614.236753][ T8097]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  614.243012][ T8097]  ? validate_linkmsg+0x6fc/0x9c0
[  614.248043][ T8097]  br_dev_newlink+0x27/0x110
[  614.252824][ T8097]  ? br_changelink+0x1760/0x1760
[  614.257860][ T8097]  __rtnl_newlink+0x1173/0x1930
[  614.263697][ T8097]  ? rtnl_link_unregister+0x260/0x260
[  614.270757][ T8097]  rtnl_newlink+0x67/0xa0
[  614.275100][ T8097]  ? __rtnl_newlink+0x1930/0x1930
[  614.280415][ T8097]  rtnetlink_rcv_msg+0x3c7/0xe00
[  614.285572][ T8097]  ? rtnl_fill_vf+0x4a0/0x4a0
[  614.290562][ T8097]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  614.296934][ T8097]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  614.303126][ T8097]  netlink_rcv_skb+0x16b/0x440
[  614.308272][ T8097]  ? rtnl_fill_vf+0x4a0/0x4a0
[  614.313581][ T8097]  ? netlink_ack+0x1380/0x1380
[  614.318650][ T8097]  ? lock_sync+0x190/0x190
[  614.323492][ T8097]  ? netlink_deliver_tap+0x1a0/0xd00
[  614.329863][ T8097]  ? _copy_from_iter+0x2c1/0x10f0
[  614.334999][ T8097]  netlink_unicast+0x53b/0x810
[  614.339787][ T8097]  ? netlink_attachskb+0x880/0x880
[  614.345455][ T8097]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  614.351543][ T8097]  ? __phys_addr_symbol+0x30/0x70
[  614.356612][ T8097]  ? __check_object_size+0x323/0x730
[  614.362080][ T8097]  netlink_sendmsg+0x93c/0xe40
[  614.366964][ T8097]  ? netlink_unicast+0x810/0x810
[  614.372473][ T8097]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  614.377871][ T8097]  ? netlink_unicast+0x810/0x810
[  614.383094][ T8097]  __sock_sendmsg+0xd5/0x180
[  614.387728][ T8097]  ____sys_sendmsg+0x6ac/0x940
[  614.392595][ T8097]  ? copy_msghdr_from_user+0x10b/0x160
[  614.398167][ T8097]  ? kernel_sendmsg+0x50/0x50
[  614.402880][ T8097]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  614.409377][ T8097]  ___sys_sendmsg+0x135/0x1d0
[  614.414083][ T8097]  ? do_recvmmsg+0x740/0x740
[  614.419065][ T8097]  ? find_held_lock+0x2d/0x110
[  614.424130][ T8097]  ? preempt_count_sub+0x160/0x160
[  614.429371][ T8097]  ? __fget_light+0x1fc/0x260
[  614.434149][ T8097]  __sys_sendmsg+0x117/0x1e0
[  614.438930][ T8097]  ? __sys_sendmsg_sock+0x30/0x30
[  614.444064][ T8097]  ? xfd_validate_state+0x5d/0x180
[  614.449307][ T8097]  ? syscall_enter_from_user_mode+0x7f/0x120
[  614.455889][ T8097]  do_syscall_64+0x40/0x110
[  614.460585][ T8097]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  614.467184][ T8097] RIP: 0033:0x7fb700fd30b9
[  614.471808][ T8097] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  614.492833][ T8097] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  614.501863][ T8097] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  614.510699][ T8097] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  614.519262][ T8097] RBP: 0000000000095a6f R08: 0000000000000000 R09: 0000000000000006
[  614.527415][ T8097] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  614.535745][ T8097] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  614.544979][ T8097]  </TASK>
[  614.550510][ T8097] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  614.615681][ T8097] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  614.626077][ T8097] CPU: 1 PID: 8097 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  614.636775][ T8097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  614.647021][ T8097] Call Trace:
[  614.650297][ T8097]  <TASK>
[  614.653594][ T8097]  dump_stack_lvl+0x125/0x1b0
[  614.658292][ T8097]  sysfs_warn_dup+0x7f/0xa0
[  614.662901][ T8097]  sysfs_create_dir_ns+0x249/0x2b0
[  614.668133][ T8097]  ? sysfs_create_mount_point+0xb0/0xb0
[  614.673796][ T8097]  ? spin_bug+0x1d0/0x1d0
[  614.678329][ T8097]  ? net_namespace+0x12/0x40
[  614.683025][ T8097]  ? device_namespace+0x8d/0xc0
[  614.687895][ T8097]  kobject_add_internal+0x2c8/0x970
[  614.693292][ T8097]  kobject_add+0x16f/0x240
[  614.698077][ T8097]  ? kset_create_and_add+0x190/0x190
[  614.703469][ T8097]  ? do_raw_spin_unlock+0x173/0x230
[  614.708699][ T8097]  ? kobject_put+0xbe/0x440
[  614.713424][ T8097]  ? device_add+0xc35/0x1aa0
[  614.718325][ T8097]  device_add+0x289/0x1aa0
[  614.722938][ T8097]  ? device_initialize+0x510/0x510
[  614.728148][ T8097]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  614.735724][ T8097]  ? __init_waitqueue_head+0xca/0x150
[  614.741212][ T8097]  netdev_register_kobject+0x183/0x3f0
[  614.747420][ T8097]  register_netdevice+0xbe6/0x14b0
[  614.753188][ T8097]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  614.759538][ T8097]  ? validate_linkmsg+0x6fc/0x9c0
[  614.765035][ T8097]  br_dev_newlink+0x27/0x110
[  614.769685][ T8097]  ? br_changelink+0x1760/0x1760
[  614.774758][ T8097]  __rtnl_newlink+0x1173/0x1930
[  614.779756][ T8097]  ? rtnl_link_unregister+0x260/0x260
[  614.785372][ T8097]  rtnl_newlink+0x67/0xa0
[  614.789895][ T8097]  ? __rtnl_newlink+0x1930/0x1930
[  614.795389][ T8097]  rtnetlink_rcv_msg+0x3c7/0xe00
[  614.800776][ T8097]  ? rtnl_fill_vf+0x4a0/0x4a0
[  614.805464][ T8097]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  614.812343][ T8097]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  614.819510][ T8097]  netlink_rcv_skb+0x16b/0x440
[  614.824408][ T8097]  ? rtnl_fill_vf+0x4a0/0x4a0
[  614.829319][ T8097]  ? netlink_ack+0x1380/0x1380
[  614.834371][ T8097]  ? lock_sync+0x190/0x190
[  614.839015][ T8097]  ? netlink_deliver_tap+0x1a0/0xd00
[  614.844776][ T8097]  ? _copy_from_iter+0x2c1/0x10f0
[  614.850042][ T8097]  netlink_unicast+0x53b/0x810
[  614.855296][ T8097]  ? netlink_attachskb+0x880/0x880
[  614.860682][ T8097]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  614.866586][ T8097]  ? __phys_addr_symbol+0x30/0x70
[  614.871792][ T8097]  ? __check_object_size+0x323/0x730
[  614.877089][ T8097]  netlink_sendmsg+0x93c/0xe40
[  614.881877][ T8097]  ? netlink_unicast+0x810/0x810
[  614.887041][ T8097]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  614.892435][ T8097]  ? netlink_unicast+0x810/0x810
[  614.897919][ T8097]  __sock_sendmsg+0xd5/0x180
[  614.902923][ T8097]  ____sys_sendmsg+0x6ac/0x940
[  614.907714][ T8097]  ? copy_msghdr_from_user+0x10b/0x160
[  614.913636][ T8097]  ? kernel_sendmsg+0x50/0x50
[  614.918595][ T8097]  ___sys_sendmsg+0x135/0x1d0
[  614.923496][ T8097]  ? do_recvmmsg+0x740/0x740
[  614.928271][ T8097]  ? find_held_lock+0x2d/0x110
[  614.933317][ T8097]  ? preempt_count_sub+0x160/0x160
[  614.938879][ T8097]  ? __fget_light+0x1fc/0x260
[  614.943967][ T8097]  __sys_sendmsg+0x117/0x1e0
[  614.948569][ T8097]  ? __sys_sendmsg_sock+0x30/0x30
[  614.953972][ T8097]  ? syscall_enter_from_user_mode+0x7f/0x120
[  614.960620][ T8097]  do_syscall_64+0x40/0x110
[  614.965244][ T8097]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  614.971439][ T8097] RIP: 0033:0x7fb700fd30b9
[  614.975956][ T8097] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  614.996189][ T8097] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  615.004870][ T8097] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  615.013197][ T8097] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  615.021789][ T8097] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  615.029953][ T8097] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  615.038803][ T8097] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  615.047574][ T8097]  </TASK>
[  615.055908][ T8097] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  615.131123][ T8098] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  615.145277][ T8098] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  615.154735][ T8098] CPU: 1 PID: 8098 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  615.165270][ T8098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  615.175598][ T8098] Call Trace:
[  615.179149][ T8098]  <TASK>
[  615.182150][ T8098]  dump_stack_lvl+0x125/0x1b0
[  615.186935][ T8098]  sysfs_warn_dup+0x7f/0xa0
[  615.191566][ T8098]  sysfs_create_dir_ns+0x249/0x2b0
[  615.196722][ T8098]  ? sysfs_create_mount_point+0xb0/0xb0
[  615.202742][ T8098]  ? spin_bug+0x1d0/0x1d0
[  615.207102][ T8098]  ? net_namespace+0x12/0x40
[  615.211790][ T8098]  ? device_namespace+0x8d/0xc0
[  615.216767][ T8098]  kobject_add_internal+0x2c8/0x970
[  615.222089][ T8098]  kobject_add+0x16f/0x240
[  615.226523][ T8098]  ? kset_create_and_add+0x190/0x190
[  615.231815][ T8098]  ? do_raw_spin_unlock+0x173/0x230
[  615.237098][ T8098]  ? kobject_put+0xbe/0x440
[  615.241867][ T8098]  ? device_add+0xc35/0x1aa0
[  615.246475][ T8098]  device_add+0x289/0x1aa0
[  615.250896][ T8098]  ? device_initialize+0x510/0x510
[  615.256031][ T8098]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  615.263080][ T8098]  ? __init_waitqueue_head+0xca/0x150
[  615.268842][ T8098]  netdev_register_kobject+0x183/0x3f0
[  615.274528][ T8098]  register_netdevice+0xbe6/0x14b0
[  615.279926][ T8098]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  615.286054][ T8098]  ? validate_linkmsg+0x6fc/0x9c0
[  615.291708][ T8098]  br_dev_newlink+0x27/0x110
[  615.296446][ T8098]  ? br_changelink+0x1760/0x1760
[  615.302096][ T8098]  __rtnl_newlink+0x1173/0x1930
[  615.307618][ T8098]  ? rtnl_link_unregister+0x260/0x260
[  615.313245][ T8098]  rtnl_newlink+0x67/0xa0
[  615.317790][ T8098]  ? __rtnl_newlink+0x1930/0x1930
[  615.322914][ T8098]  rtnetlink_rcv_msg+0x3c7/0xe00
[  615.328191][ T8098]  ? rtnl_fill_vf+0x4a0/0x4a0
[  615.332966][ T8098]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  615.339912][ T8098]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  615.345924][ T8098]  netlink_rcv_skb+0x16b/0x440
[  615.351039][ T8098]  ? rtnl_fill_vf+0x4a0/0x4a0
[  615.356210][ T8098]  ? netlink_ack+0x1380/0x1380
[  615.361161][ T8098]  ? lock_sync+0x190/0x190
[  615.365952][ T8098]  ? netlink_deliver_tap+0x1a0/0xd00
[  615.371637][ T8098]  ? _copy_from_iter+0x2c1/0x10f0
[  615.376781][ T8098]  netlink_unicast+0x53b/0x810
[  615.381852][ T8098]  ? netlink_attachskb+0x880/0x880
[  615.387091][ T8098]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  615.393081][ T8098]  ? __phys_addr_symbol+0x30/0x70
[  615.398368][ T8098]  ? __check_object_size+0x323/0x730
[  615.403859][ T8098]  netlink_sendmsg+0x93c/0xe40
[  615.408829][ T8098]  ? netlink_unicast+0x810/0x810
[  615.413966][ T8098]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  615.419350][ T8098]  ? netlink_unicast+0x810/0x810
[  615.424390][ T8098]  __sock_sendmsg+0xd5/0x180
[  615.428986][ T8098]  ____sys_sendmsg+0x6ac/0x940
[  615.433940][ T8098]  ? copy_msghdr_from_user+0x10b/0x160
[  615.440712][ T8098]  ? kernel_sendmsg+0x50/0x50
[  615.445450][ T8098]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  615.451889][ T8098]  ___sys_sendmsg+0x135/0x1d0
[  615.456610][ T8098]  ? do_recvmmsg+0x740/0x740
[  615.461642][ T8098]  ? find_held_lock+0x2d/0x110
[  615.466869][ T8098]  ? preempt_count_sub+0x160/0x160
[  615.472489][ T8098]  ? __fget_light+0x1fc/0x260
[  615.477723][ T8098]  __sys_sendmsg+0x117/0x1e0
[  615.482440][ T8098]  ? __sys_sendmsg_sock+0x30/0x30
[  615.487746][ T8098]  ? xfd_validate_state+0x5d/0x180
[  615.493407][ T8098]  ? syscall_enter_from_user_mode+0x7f/0x120
[  615.499757][ T8098]  do_syscall_64+0x40/0x110
[  615.504510][ T8098]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  615.510696][ T8098] RIP: 0033:0x7fb700fd30b9
[  615.515669][ T8098] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  615.536890][ T8098] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  615.546809][ T8098] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  615.554918][ T8098] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  615.563612][ T8098] RBP: 0000000000095e93 R08: 0000000000000000 R09: 0000000000000006
[  615.571792][ T8098] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  615.580022][ T8098] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  615.588279][ T8098]  </TASK>
[  615.591670][ T8098] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  615.656122][ T8098] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  615.665965][ T8098] CPU: 1 PID: 8098 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  615.676482][ T8098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  615.687277][ T8098] Call Trace:
[  615.690750][ T8098]  <TASK>
[  615.693780][ T8098]  dump_stack_lvl+0x125/0x1b0
[  615.698754][ T8098]  sysfs_warn_dup+0x7f/0xa0
[  615.703308][ T8098]  sysfs_create_dir_ns+0x249/0x2b0
[  615.708608][ T8098]  ? sysfs_create_mount_point+0xb0/0xb0
[  615.714255][ T8098]  ? spin_bug+0x1d0/0x1d0
[  615.718716][ T8098]  ? net_namespace+0x12/0x40
[  615.723408][ T8098]  ? device_namespace+0x8d/0xc0
[  615.728277][ T8098]  kobject_add_internal+0x2c8/0x970
[  615.733491][ T8098]  kobject_add+0x16f/0x240
[  615.737918][ T8098]  ? kset_create_and_add+0x190/0x190
[  615.743215][ T8098]  ? do_raw_spin_unlock+0x173/0x230
[  615.748507][ T8098]  ? kobject_put+0xbe/0x440
[  615.753243][ T8098]  ? device_add+0xc35/0x1aa0
[  615.759185][ T8098]  device_add+0x289/0x1aa0
[  615.763900][ T8098]  ? device_initialize+0x510/0x510
[  615.769052][ T8098]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  615.776241][ T8098]  ? __init_waitqueue_head+0xca/0x150
[  615.782338][ T8098]  netdev_register_kobject+0x183/0x3f0
[  615.787941][ T8098]  register_netdevice+0xbe6/0x14b0
[  615.793250][ T8098]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  615.800032][ T8098]  ? validate_linkmsg+0x6fc/0x9c0
[  615.805424][ T8098]  br_dev_newlink+0x27/0x110
[  615.810285][ T8098]  ? br_changelink+0x1760/0x1760
[  615.815488][ T8098]  __rtnl_newlink+0x1173/0x1930
[  615.820530][ T8098]  ? rtnl_link_unregister+0x260/0x260
[  615.826151][ T8098]  rtnl_newlink+0x67/0xa0
[  615.830575][ T8098]  ? __rtnl_newlink+0x1930/0x1930
[  615.835701][ T8098]  rtnetlink_rcv_msg+0x3c7/0xe00
[  615.840835][ T8098]  ? rtnl_fill_vf+0x4a0/0x4a0
[  615.845696][ T8098]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  615.853015][ T8098]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  615.859301][ T8098]  netlink_rcv_skb+0x16b/0x440
[  615.864275][ T8098]  ? rtnl_fill_vf+0x4a0/0x4a0
[  615.869146][ T8098]  ? netlink_ack+0x1380/0x1380
[  615.873920][ T8098]  ? lock_sync+0x190/0x190
[  615.878708][ T8098]  ? netlink_deliver_tap+0x1a0/0xd00
[  615.884003][ T8098]  ? _copy_from_iter+0x2c1/0x10f0
[  615.889131][ T8098]  netlink_unicast+0x53b/0x810
[  615.894103][ T8098]  ? netlink_attachskb+0x880/0x880
[  615.899341][ T8098]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  615.905552][ T8098]  ? __phys_addr_symbol+0x30/0x70
[  615.911116][ T8098]  ? __check_object_size+0x323/0x730
[  615.916677][ T8098]  netlink_sendmsg+0x93c/0xe40
[  615.921546][ T8098]  ? netlink_unicast+0x810/0x810
[  615.926938][ T8098]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  615.932404][ T8098]  ? netlink_unicast+0x810/0x810
[  615.937977][ T8098]  __sock_sendmsg+0xd5/0x180
[  615.943306][ T8098]  ____sys_sendmsg+0x6ac/0x940
[  615.948284][ T8098]  ? copy_msghdr_from_user+0x10b/0x160
[  615.953960][ T8098]  ? kernel_sendmsg+0x50/0x50
[  615.959191][ T8098]  ? hlock_class+0x4e/0x130
[  615.963810][ T8098]  ? __lock_acquire+0x14e0/0x3b10
[  615.969028][ T8098]  ___sys_sendmsg+0x135/0x1d0
[  615.974119][ T8098]  ? do_recvmmsg+0x740/0x740
[  615.978803][ T8098]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  615.985368][ T8098]  ? find_held_lock+0x2d/0x110
[  615.990195][ T8098]  ? __fget_light+0x1fc/0x260
[  615.994912][ T8098]  __sys_sendmsg+0x117/0x1e0
[  615.999717][ T8098]  ? __sys_sendmsg_sock+0x30/0x30
[  616.005013][ T8098]  ? xfd_validate_state+0x5d/0x180
[  616.010391][ T8098]  ? syscall_enter_from_user_mode+0x7f/0x120
[  616.016480][ T8098]  do_syscall_64+0x40/0x110
[  616.021046][ T8098]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  616.027147][ T8098] RIP: 0033:0x7fb700fd30b9
[  616.031789][ T8098] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  616.052127][ T8098] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  616.061071][ T8098] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  616.069047][ T8098] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  616.077224][ T8098] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  616.085377][ T8098] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  616.093781][ T8098] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  616.102206][ T8098]  </TASK>
[  616.107339][ T8098] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  616.170618][ T8099] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  616.181179][ T8099] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  616.191156][ T8099] CPU: 1 PID: 8099 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  616.202116][ T8099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  616.213138][ T8099] Call Trace:
[  616.216432][ T8099]  <TASK>
[  616.219362][ T8099]  dump_stack_lvl+0x125/0x1b0
[  616.224069][ T8099]  sysfs_warn_dup+0x7f/0xa0
[  616.228933][ T8099]  sysfs_create_dir_ns+0x249/0x2b0
[  616.234256][ T8099]  ? sysfs_create_mount_point+0xb0/0xb0
[  616.240354][ T8099]  ? spin_bug+0x1d0/0x1d0
[  616.245040][ T8099]  ? net_namespace+0x12/0x40
[  616.249978][ T8099]  ? device_namespace+0x8d/0xc0
[  616.254933][ T8099]  kobject_add_internal+0x2c8/0x970
[  616.260154][ T8099]  kobject_add+0x16f/0x240
[  616.264758][ T8099]  ? kset_create_and_add+0x190/0x190
[  616.270142][ T8099]  ? do_raw_spin_unlock+0x173/0x230
[  616.275792][ T8099]  ? kobject_put+0xbe/0x440
[  616.280311][ T8099]  ? device_add+0xc35/0x1aa0
[  616.285003][ T8099]  device_add+0x289/0x1aa0
[  616.289532][ T8099]  ? device_initialize+0x510/0x510
[  616.294993][ T8099]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  616.302111][ T8099]  ? __init_waitqueue_head+0xca/0x150
[  616.307587][ T8099]  netdev_register_kobject+0x183/0x3f0
[  616.313242][ T8099]  register_netdevice+0xbe6/0x14b0
[  616.318728][ T8099]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  616.324985][ T8099]  ? validate_linkmsg+0x6fc/0x9c0
[  616.330459][ T8099]  br_dev_newlink+0x27/0x110
[  616.335070][ T8099]  ? br_changelink+0x1760/0x1760
[  616.340577][ T8099]  __rtnl_newlink+0x1173/0x1930
[  616.345806][ T8099]  ? rtnl_link_unregister+0x260/0x260
[  616.351670][ T8099]  rtnl_newlink+0x67/0xa0
[  616.356355][ T8099]  ? __rtnl_newlink+0x1930/0x1930
[  616.361484][ T8099]  rtnetlink_rcv_msg+0x3c7/0xe00
[  616.366873][ T8099]  ? rtnl_fill_vf+0x4a0/0x4a0
[  616.372519][ T8099]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  616.378616][ T8099]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  616.384746][ T8099]  netlink_rcv_skb+0x16b/0x440
[  616.389894][ T8099]  ? rtnl_fill_vf+0x4a0/0x4a0
[  616.394593][ T8099]  ? netlink_ack+0x1380/0x1380
[  616.399425][ T8099]  ? lock_sync+0x190/0x190
[  616.404085][ T8099]  ? netlink_deliver_tap+0x1a0/0xd00
[  616.409728][ T8099]  ? _copy_from_iter+0x2c1/0x10f0
[  616.414869][ T8099]  netlink_unicast+0x53b/0x810
[  616.420175][ T8099]  ? netlink_attachskb+0x880/0x880
[  616.425662][ T8099]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  616.431581][ T8099]  ? __phys_addr_symbol+0x30/0x70
[  616.436706][ T8099]  ? __check_object_size+0x323/0x730
[  616.442097][ T8099]  netlink_sendmsg+0x93c/0xe40
[  616.446967][ T8099]  ? netlink_unicast+0x810/0x810
[  616.452008][ T8099]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  616.457438][ T8099]  ? netlink_unicast+0x810/0x810
[  616.462695][ T8099]  __sock_sendmsg+0xd5/0x180
[  616.467332][ T8099]  ____sys_sendmsg+0x6ac/0x940
[  616.472301][ T8099]  ? copy_msghdr_from_user+0x10b/0x160
[  616.477799][ T8099]  ? kernel_sendmsg+0x50/0x50
[  616.482951][ T8099]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  616.489160][ T8099]  ___sys_sendmsg+0x135/0x1d0
[  616.494417][ T8099]  ? do_recvmmsg+0x740/0x740
[  616.499145][ T8099]  ? find_held_lock+0x2d/0x110
[  616.504316][ T8099]  ? preempt_count_sub+0x160/0x160
[  616.509835][ T8099]  ? __fget_light+0x1fc/0x260
[  616.514712][ T8099]  __sys_sendmsg+0x117/0x1e0
[  616.519603][ T8099]  ? __sys_sendmsg_sock+0x30/0x30
[  616.524842][ T8099]  ? syscall_enter_from_user_mode+0x7f/0x120
[  616.531101][ T8099]  do_syscall_64+0x40/0x110
[  616.535792][ T8099]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  616.541805][ T8099] RIP: 0033:0x7fb700fd30b9
[  616.546311][ T8099] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  616.566365][ T8099] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  616.574956][ T8099] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  616.583188][ T8099] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  616.591590][ T8099] RBP: 00000000000962ae R08: 0000000000000000 R09: 0000000000000006
[  616.600078][ T8099] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  616.608398][ T8099] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  616.616667][ T8099]  </TASK>
[  616.621510][ T8099] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  616.676517][ T8099] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  616.685818][ T8099] CPU: 1 PID: 8099 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  616.696550][ T8099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  616.706699][ T8099] Call Trace:
[  616.709979][ T8099]  <TASK>
[  616.712918][ T8099]  dump_stack_lvl+0x125/0x1b0
[  616.717621][ T8099]  sysfs_warn_dup+0x7f/0xa0
[  616.722325][ T8099]  sysfs_create_dir_ns+0x249/0x2b0
[  616.727549][ T8099]  ? sysfs_create_mount_point+0xb0/0xb0
[  616.733198][ T8099]  ? spin_bug+0x1d0/0x1d0
[  616.737537][ T8099]  ? net_namespace+0x12/0x40
[  616.742322][ T8099]  ? device_namespace+0x8d/0xc0
[  616.747387][ T8099]  kobject_add_internal+0x2c8/0x970
[  616.753153][ T8099]  kobject_add+0x16f/0x240
[  616.758629][ T8099]  ? kset_create_and_add+0x190/0x190
[  616.764553][ T8099]  ? do_raw_spin_unlock+0x173/0x230
[  616.770102][ T8099]  ? kobject_put+0xbe/0x440
[  616.774627][ T8099]  ? device_add+0xc35/0x1aa0
[  616.779593][ T8099]  device_add+0x289/0x1aa0
[  616.784530][ T8099]  ? device_initialize+0x510/0x510
[  616.789736][ T8099]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  616.796782][ T8099]  ? __init_waitqueue_head+0xca/0x150
[  616.802347][ T8099]  netdev_register_kobject+0x183/0x3f0
[  616.807867][ T8099]  register_netdevice+0xbe6/0x14b0
[  616.813250][ T8099]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  616.819388][ T8099]  ? validate_linkmsg+0x6fc/0x9c0
[  616.824723][ T8099]  br_dev_newlink+0x27/0x110
[  616.829448][ T8099]  ? br_changelink+0x1760/0x1760
[  616.834943][ T8099]  __rtnl_newlink+0x1173/0x1930
[  616.840222][ T8099]  ? rtnl_link_unregister+0x260/0x260
[  616.845918][ T8099]  rtnl_newlink+0x67/0xa0
[  616.850495][ T8099]  ? __rtnl_newlink+0x1930/0x1930
[  616.855808][ T8099]  rtnetlink_rcv_msg+0x3c7/0xe00
[  616.861217][ T8099]  ? rtnl_fill_vf+0x4a0/0x4a0
[  616.866061][ T8099]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  616.872428][ T8099]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  616.878714][ T8099]  netlink_rcv_skb+0x16b/0x440
[  616.883774][ T8099]  ? rtnl_fill_vf+0x4a0/0x4a0
[  616.888644][ T8099]  ? netlink_ack+0x1380/0x1380
[  616.893688][ T8099]  ? lock_sync+0x190/0x190
[  616.898387][ T8099]  ? netlink_deliver_tap+0x1a0/0xd00
[  616.903709][ T8099]  ? _copy_from_iter+0x2c1/0x10f0
[  616.909311][ T8099]  netlink_unicast+0x53b/0x810
[  616.914195][ T8099]  ? netlink_attachskb+0x880/0x880
[  616.919426][ T8099]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  616.925530][ T8099]  ? __phys_addr_symbol+0x30/0x70
[  616.930739][ T8099]  ? __check_object_size+0x323/0x730
[  616.936302][ T8099]  netlink_sendmsg+0x93c/0xe40
[  616.941259][ T8099]  ? netlink_unicast+0x810/0x810
[  616.946793][ T8099]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  616.952355][ T8099]  ? netlink_unicast+0x810/0x810
[  616.957324][ T8099]  __sock_sendmsg+0xd5/0x180
[  616.961928][ T8099]  ____sys_sendmsg+0x6ac/0x940
[  616.966707][ T8099]  ? copy_msghdr_from_user+0x10b/0x160
[  616.972268][ T8099]  ? kernel_sendmsg+0x50/0x50
[  616.977062][ T8099]  ? hlock_class+0x4e/0x130
[  616.981575][ T8099]  ? __lock_acquire+0x14e0/0x3b10
[  616.986970][ T8099]  ___sys_sendmsg+0x135/0x1d0
[  616.991776][ T8099]  ? do_recvmmsg+0x740/0x740
[  616.996409][ T8099]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  617.002518][ T8099]  ? find_held_lock+0x2d/0x110
[  617.007417][ T8099]  ? __fget_light+0x1fc/0x260
[  617.012189][ T8099]  __sys_sendmsg+0x117/0x1e0
[  617.016880][ T8099]  ? __sys_sendmsg_sock+0x30/0x30
[  617.022006][ T8099]  ? __do_sys_rseq+0x750/0x750
[  617.026795][ T8099]  ? syscall_enter_from_user_mode+0x7f/0x120
[  617.032798][ T8099]  do_syscall_64+0x40/0x110
[  617.037572][ T8099]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  617.043497][ T8099] RIP: 0033:0x7fb700fd30b9
[  617.047960][ T8099] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  617.067796][ T8099] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  617.076404][ T8099] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  617.084899][ T8099] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  617.093304][ T8099] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  617.101365][ T8099] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  617.109488][ T8099] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  617.117913][ T8099]  </TASK>
[  617.123006][ T8099] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  617.182359][ T8100] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  617.193110][ T8100] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  617.202233][ T8100] CPU: 1 PID: 8100 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  617.212739][ T8100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  617.223233][ T8100] Call Trace:
[  617.226512][ T8100]  <TASK>
[  617.229443][ T8100]  dump_stack_lvl+0x125/0x1b0
[  617.234536][ T8100]  sysfs_warn_dup+0x7f/0xa0
[  617.239341][ T8100]  sysfs_create_dir_ns+0x249/0x2b0
[  617.244561][ T8100]  ? sysfs_create_mount_point+0xb0/0xb0
[  617.250357][ T8100]  ? spin_bug+0x1d0/0x1d0
[  617.254826][ T8100]  ? net_namespace+0x12/0x40
[  617.259424][ T8100]  ? device_namespace+0x8d/0xc0
[  617.264725][ T8100]  kobject_add_internal+0x2c8/0x970
[  617.269939][ T8100]  kobject_add+0x16f/0x240
[  617.274538][ T8100]  ? kset_create_and_add+0x190/0x190
[  617.280020][ T8100]  ? do_raw_spin_unlock+0x173/0x230
[  617.285405][ T8100]  ? kobject_put+0xbe/0x440
[  617.290065][ T8100]  ? device_add+0xc35/0x1aa0
[  617.294665][ T8100]  device_add+0x289/0x1aa0
[  617.299266][ T8100]  ? device_initialize+0x510/0x510
[  617.304595][ T8100]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  617.311721][ T8100]  ? __init_waitqueue_head+0xca/0x150
[  617.317654][ T8100]  netdev_register_kobject+0x183/0x3f0
[  617.323219][ T8100]  register_netdevice+0xbe6/0x14b0
[  617.328351][ T8100]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  617.334257][ T8100]  ? validate_linkmsg+0x6fc/0x9c0
[  617.339481][ T8100]  br_dev_newlink+0x27/0x110
[  617.344165][ T8100]  ? br_changelink+0x1760/0x1760
[  617.349106][ T8100]  __rtnl_newlink+0x1173/0x1930
[  617.354086][ T8100]  ? rtnl_link_unregister+0x260/0x260
[  617.359712][ T8100]  rtnl_newlink+0x67/0xa0
[  617.364169][ T8100]  ? __rtnl_newlink+0x1930/0x1930
[  617.369299][ T8100]  rtnetlink_rcv_msg+0x3c7/0xe00
[  617.375586][ T8100]  ? rtnl_fill_vf+0x4a0/0x4a0
[  617.380286][ T8100]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  617.386298][ T8100]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  617.392389][ T8100]  netlink_rcv_skb+0x16b/0x440
[  617.397256][ T8100]  ? rtnl_fill_vf+0x4a0/0x4a0
[  617.402028][ T8100]  ? netlink_ack+0x1380/0x1380
[  617.406898][ T8100]  ? lock_sync+0x190/0x190
[  617.411398][ T8100]  ? netlink_deliver_tap+0x1a0/0xd00
[  617.417278][ T8100]  ? _copy_from_iter+0x2c1/0x10f0
[  617.422405][ T8100]  netlink_unicast+0x53b/0x810
[  617.427186][ T8100]  ? netlink_attachskb+0x880/0x880
[  617.432306][ T8100]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  617.438873][ T8100]  ? __phys_addr_symbol+0x30/0x70
[  617.444082][ T8100]  ? __check_object_size+0x323/0x730
[  617.449388][ T8100]  netlink_sendmsg+0x93c/0xe40
[  617.454194][ T8100]  ? netlink_unicast+0x810/0x810
[  617.459277][ T8100]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  617.464659][ T8100]  ? netlink_unicast+0x810/0x810
[  617.470130][ T8100]  __sock_sendmsg+0xd5/0x180
[  617.474813][ T8100]  ____sys_sendmsg+0x6ac/0x940
[  617.479786][ T8100]  ? copy_msghdr_from_user+0x10b/0x160
[  617.485387][ T8100]  ? kernel_sendmsg+0x50/0x50
[  617.490093][ T8100]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  617.496338][ T8100]  ___sys_sendmsg+0x135/0x1d0
[  617.501033][ T8100]  ? do_recvmmsg+0x740/0x740
[  617.505818][ T8100]  ? find_held_lock+0x2d/0x110
[  617.510947][ T8100]  ? preempt_count_sub+0x160/0x160
[  617.516345][ T8100]  ? __fget_light+0x1fc/0x260
[  617.521032][ T8100]  __sys_sendmsg+0x117/0x1e0
[  617.525728][ T8100]  ? __sys_sendmsg_sock+0x30/0x30
[  617.530863][ T8100]  ? syscall_enter_from_user_mode+0x7f/0x120
[  617.537256][ T8100]  do_syscall_64+0x40/0x110
[  617.541857][ T8100]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  617.548320][ T8100] RIP: 0033:0x7fb700fd30b9
[  617.552851][ T8100] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  617.573848][ T8100] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  617.583021][ T8100] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  617.591108][ T8100] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  617.599432][ T8100] RBP: 00000000000966be R08: 0000000000000000 R09: 0000000000000006
[  617.608460][ T8100] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  617.616868][ T8100] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  617.624942][ T8100]  </TASK>
[  617.629927][ T8100] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  617.695658][ T8100] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  617.705639][ T8100] CPU: 0 PID: 8100 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  617.715823][ T8100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  617.726068][ T8100] Call Trace:
[  617.729370][ T8100]  <TASK>
[  617.732299][ T8100]  dump_stack_lvl+0x125/0x1b0
[  617.737159][ T8100]  sysfs_warn_dup+0x7f/0xa0
[  617.741683][ T8100]  sysfs_create_dir_ns+0x249/0x2b0
[  617.746914][ T8100]  ? sysfs_create_mount_point+0xb0/0xb0
[  617.752463][ T8100]  ? spin_bug+0x1d0/0x1d0
[  617.758810][ T8100]  ? net_namespace+0x12/0x40
[  617.763860][ T8100]  ? device_namespace+0x8d/0xc0
[  617.769253][ T8100]  kobject_add_internal+0x2c8/0x970
[  617.774747][ T8100]  kobject_add+0x16f/0x240
[  617.779496][ T8100]  ? kset_create_and_add+0x190/0x190
[  617.785048][ T8100]  ? do_raw_spin_unlock+0x173/0x230
[  617.790405][ T8100]  ? kobject_put+0xbe/0x440
[  617.794929][ T8100]  ? device_add+0xc35/0x1aa0
[  617.799546][ T8100]  device_add+0x289/0x1aa0
[  617.803984][ T8100]  ? device_initialize+0x510/0x510
[  617.809296][ T8100]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  617.816627][ T8100]  ? __init_waitqueue_head+0xca/0x150
[  617.822182][ T8100]  netdev_register_kobject+0x183/0x3f0
[  617.827994][ T8100]  register_netdevice+0xbe6/0x14b0
[  617.834068][ T8100]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  617.841440][ T8100]  ? validate_linkmsg+0x6fc/0x9c0
[  617.846897][ T8100]  br_dev_newlink+0x27/0x110
[  617.852123][ T8100]  ? br_changelink+0x1760/0x1760
[  617.857143][ T8100]  __rtnl_newlink+0x1173/0x1930
[  617.862524][ T8100]  ? rtnl_link_unregister+0x260/0x260
[  617.868021][ T8100]  rtnl_newlink+0x67/0xa0
[  617.872374][ T8100]  ? __rtnl_newlink+0x1930/0x1930
[  617.877419][ T8100]  rtnetlink_rcv_msg+0x3c7/0xe00
[  617.882822][ T8100]  ? rtnl_fill_vf+0x4a0/0x4a0
[  617.887686][ T8100]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  617.894474][ T8100]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  617.900695][ T8100]  netlink_rcv_skb+0x16b/0x440
[  617.905583][ T8100]  ? rtnl_fill_vf+0x4a0/0x4a0
[  617.910620][ T8100]  ? netlink_ack+0x1380/0x1380
[  617.915777][ T8100]  ? lock_sync+0x190/0x190
[  617.920502][ T8100]  ? netlink_deliver_tap+0x1a0/0xd00
[  617.926414][ T8100]  ? _copy_from_iter+0x2c1/0x10f0
[  617.932251][ T8100]  netlink_unicast+0x53b/0x810
[  617.937321][ T8100]  ? netlink_attachskb+0x880/0x880
[  617.942669][ T8100]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  617.948828][ T8100]  ? __phys_addr_symbol+0x30/0x70
[  617.954727][ T8100]  ? __check_object_size+0x323/0x730
[  617.960112][ T8100]  netlink_sendmsg+0x93c/0xe40
[  617.965332][ T8100]  ? netlink_unicast+0x810/0x810
[  617.970382][ T8100]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  617.975722][ T8100]  ? netlink_unicast+0x810/0x810
[  617.981032][ T8100]  __sock_sendmsg+0xd5/0x180
[  617.985813][ T8100]  ____sys_sendmsg+0x6ac/0x940
[  617.990666][ T8100]  ? copy_msghdr_from_user+0x10b/0x160
[  617.996405][ T8100]  ? kernel_sendmsg+0x50/0x50
[  618.001080][ T8100]  ? hlock_class+0x4e/0x130
[  618.005790][ T8100]  ? __lock_acquire+0x14e0/0x3b10
[  618.010901][ T8100]  ___sys_sendmsg+0x135/0x1d0
[  618.015581][ T8100]  ? do_recvmmsg+0x740/0x740
[  618.020426][ T8100]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  618.026667][ T8100]  ? find_held_lock+0x2d/0x110
[  618.031452][ T8100]  ? __fget_light+0x1fc/0x260
[  618.036126][ T8100]  __sys_sendmsg+0x117/0x1e0
[  618.040935][ T8100]  ? __sys_sendmsg_sock+0x30/0x30
[  618.045988][ T8100]  ? xfd_validate_state+0x5d/0x180
[  618.051117][ T8100]  ? syscall_enter_from_user_mode+0x7f/0x120
[  618.057472][ T8100]  do_syscall_64+0x40/0x110
[  618.062085][ T8100]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  618.068273][ T8100] RIP: 0033:0x7fb700fd30b9
[  618.072884][ T8100] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  618.093562][ T8100] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  618.102427][ T8100] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  618.111196][ T8100] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  618.119906][ T8100] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  618.128228][ T8100] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  618.136659][ T8100] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  618.145345][ T8100]  </TASK>
[  618.148828][ T8100] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  618.211477][ T8101] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  618.222042][ T8101] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  618.231648][ T8101] CPU: 1 PID: 8101 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  618.242176][ T8101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  618.252764][ T8101] Call Trace:
[  618.256170][ T8101]  <TASK>
[  618.259115][ T8101]  dump_stack_lvl+0x125/0x1b0
[  618.263843][ T8101]  sysfs_warn_dup+0x7f/0xa0
[  618.268628][ T8101]  sysfs_create_dir_ns+0x249/0x2b0
[  618.274031][ T8101]  ? sysfs_create_mount_point+0xb0/0xb0
[  618.279729][ T8101]  ? spin_bug+0x1d0/0x1d0
[  618.284465][ T8101]  ? net_namespace+0x12/0x40
[  618.289630][ T8101]  ? device_namespace+0x8d/0xc0
[  618.295193][ T8101]  kobject_add_internal+0x2c8/0x970
[  618.300762][ T8101]  kobject_add+0x16f/0x240
[  618.305452][ T8101]  ? kset_create_and_add+0x190/0x190
[  618.310771][ T8101]  ? do_raw_spin_unlock+0x173/0x230
[  618.316075][ T8101]  ? kobject_put+0xbe/0x440
[  618.320757][ T8101]  ? device_add+0xc35/0x1aa0
[  618.325648][ T8101]  device_add+0x289/0x1aa0
[  618.330347][ T8101]  ? device_initialize+0x510/0x510
[  618.335811][ T8101]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  618.342845][ T8101]  ? __init_waitqueue_head+0xca/0x150
[  618.348429][ T8101]  netdev_register_kobject+0x183/0x3f0
[  618.353920][ T8101]  register_netdevice+0xbe6/0x14b0
[  618.359053][ T8101]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  618.365021][ T8101]  ? validate_linkmsg+0x6fc/0x9c0
[  618.370074][ T8101]  br_dev_newlink+0x27/0x110
[  618.374932][ T8101]  ? br_changelink+0x1760/0x1760
[  618.379893][ T8101]  __rtnl_newlink+0x1173/0x1930
[  618.384933][ T8101]  ? rtnl_link_unregister+0x260/0x260
[  618.390430][ T8101]  rtnl_newlink+0x67/0xa0
[  618.394937][ T8101]  ? __rtnl_newlink+0x1930/0x1930
[  618.400412][ T8101]  rtnetlink_rcv_msg+0x3c7/0xe00
[  618.405362][ T8101]  ? rtnl_fill_vf+0x4a0/0x4a0
[  618.410048][ T8101]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  618.416252][ T8101]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  618.422439][ T8101]  netlink_rcv_skb+0x16b/0x440
[  618.427475][ T8101]  ? rtnl_fill_vf+0x4a0/0x4a0
[  618.432333][ T8101]  ? netlink_ack+0x1380/0x1380
[  618.437122][ T8101]  ? lock_sync+0x190/0x190
[  618.441573][ T8101]  ? netlink_deliver_tap+0x1a0/0xd00
[  618.447046][ T8101]  ? _copy_from_iter+0x2c1/0x10f0
[  618.452430][ T8101]  netlink_unicast+0x53b/0x810
[  618.457441][ T8101]  ? netlink_attachskb+0x880/0x880
[  618.462914][ T8101]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  618.469424][ T8101]  ? __phys_addr_symbol+0x30/0x70
[  618.474549][ T8101]  ? __check_object_size+0x323/0x730
[  618.480019][ T8101]  netlink_sendmsg+0x93c/0xe40
[  618.485060][ T8101]  ? netlink_unicast+0x810/0x810
[  618.490114][ T8101]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  618.495527][ T8101]  ? netlink_unicast+0x810/0x810
[  618.500592][ T8101]  __sock_sendmsg+0xd5/0x180
[  618.505350][ T8101]  ____sys_sendmsg+0x6ac/0x940
[  618.510297][ T8101]  ? copy_msghdr_from_user+0x10b/0x160
[  618.516157][ T8101]  ? kernel_sendmsg+0x50/0x50
[  618.521133][ T8101]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  618.527314][ T8101]  ___sys_sendmsg+0x135/0x1d0
[  618.532200][ T8101]  ? do_recvmmsg+0x740/0x740
[  618.536917][ T8101]  ? find_held_lock+0x2d/0x110
[  618.542138][ T8101]  ? preempt_count_sub+0x160/0x160
[  618.547936][ T8101]  ? __fget_light+0x1fc/0x260
[  618.554386][ T8101]  __sys_sendmsg+0x117/0x1e0
[  618.559131][ T8101]  ? __sys_sendmsg_sock+0x30/0x30
[  618.564426][ T8101]  ? xfd_validate_state+0x5d/0x180
[  618.569659][ T8101]  ? syscall_enter_from_user_mode+0x7f/0x120
[  618.576090][ T8101]  do_syscall_64+0x40/0x110
[  618.580799][ T8101]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  618.587159][ T8101] RIP: 0033:0x7fb700fd30b9
[  618.592131][ T8101] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  618.613561][ T8101] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  618.622809][ T8101] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  618.631754][ T8101] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  618.640024][ T8101] RBP: 0000000000096ab1 R08: 0000000000000000 R09: 0000000000000006
[  618.648109][ T8101] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  618.656530][ T8101] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  618.664726][ T8101]  </TASK>
[  618.669701][ T8101] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  618.735984][ T8101] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  618.746152][ T8101] CPU: 0 PID: 8101 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  618.756491][ T8101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  618.767249][ T8101] Call Trace:
[  618.770543][ T8101]  <TASK>
[  618.773477][ T8101]  dump_stack_lvl+0x125/0x1b0
[  618.778372][ T8101]  sysfs_warn_dup+0x7f/0xa0
[  618.782965][ T8101]  sysfs_create_dir_ns+0x249/0x2b0
[  618.788274][ T8101]  ? sysfs_create_mount_point+0xb0/0xb0
[  618.793992][ T8101]  ? spin_bug+0x1d0/0x1d0
[  618.798589][ T8101]  ? net_namespace+0x12/0x40
[  618.803275][ T8101]  ? device_namespace+0x8d/0xc0
[  618.808543][ T8101]  kobject_add_internal+0x2c8/0x970
[  618.813877][ T8101]  kobject_add+0x16f/0x240
[  618.818412][ T8101]  ? kset_create_and_add+0x190/0x190
[  618.824244][ T8101]  ? do_raw_spin_unlock+0x173/0x230
[  618.829821][ T8101]  ? kobject_put+0xbe/0x440
[  618.834460][ T8101]  ? device_add+0xc35/0x1aa0
[  618.839433][ T8101]  device_add+0x289/0x1aa0
[  618.843866][ T8101]  ? device_initialize+0x510/0x510
[  618.848981][ T8101]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  618.856217][ T8101]  ? __init_waitqueue_head+0xca/0x150
[  618.863220][ T8101]  netdev_register_kobject+0x183/0x3f0
[  618.869824][ T8101]  register_netdevice+0xbe6/0x14b0
[  618.876266][ T8101]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  618.882458][ T8101]  ? validate_linkmsg+0x6fc/0x9c0
[  618.887630][ T8101]  br_dev_newlink+0x27/0x110
[  618.892351][ T8101]  ? br_changelink+0x1760/0x1760
[  618.897425][ T8101]  __rtnl_newlink+0x1173/0x1930
[  618.902663][ T8101]  ? rtnl_link_unregister+0x260/0x260
[  618.908369][ T8101]  rtnl_newlink+0x67/0xa0
[  618.912890][ T8101]  ? __rtnl_newlink+0x1930/0x1930
[  618.918616][ T8101]  rtnetlink_rcv_msg+0x3c7/0xe00
[  618.924356][ T8101]  ? rtnl_fill_vf+0x4a0/0x4a0
[  618.929040][ T8101]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  618.935327][ T8101]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  618.941799][ T8101]  netlink_rcv_skb+0x16b/0x440
[  618.947377][ T8101]  ? rtnl_fill_vf+0x4a0/0x4a0
[  618.952237][ T8101]  ? netlink_ack+0x1380/0x1380
[  618.957013][ T8101]  ? lock_sync+0x190/0x190
[  618.961629][ T8101]  ? netlink_deliver_tap+0x1a0/0xd00
[  618.967012][ T8101]  ? _copy_from_iter+0x2c1/0x10f0
[  618.972063][ T8101]  netlink_unicast+0x53b/0x810
[  618.976940][ T8101]  ? netlink_attachskb+0x880/0x880
[  618.982156][ T8101]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  618.988321][ T8101]  ? __phys_addr_symbol+0x30/0x70
[  618.993450][ T8101]  ? __check_object_size+0x323/0x730
[  619.000064][ T8101]  netlink_sendmsg+0x93c/0xe40
[  619.004948][ T8101]  ? netlink_unicast+0x810/0x810
[  619.009911][ T8101]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  619.015221][ T8101]  ? netlink_unicast+0x810/0x810
[  619.020258][ T8101]  __sock_sendmsg+0xd5/0x180
[  619.025222][ T8101]  ____sys_sendmsg+0x6ac/0x940
[  619.030094][ T8101]  ? copy_msghdr_from_user+0x10b/0x160
[  619.035849][ T8101]  ? kernel_sendmsg+0x50/0x50
[  619.040546][ T8101]  ? hlock_class+0x4e/0x130
[  619.045064][ T8101]  ? __lock_acquire+0x14e0/0x3b10
[  619.050204][ T8101]  ___sys_sendmsg+0x135/0x1d0
[  619.054987][ T8101]  ? do_recvmmsg+0x740/0x740
[  619.059766][ T8101]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  619.066371][ T8101]  ? find_held_lock+0x2d/0x110
[  619.071173][ T8101]  ? __fget_light+0x1fc/0x260
[  619.075854][ T8101]  __sys_sendmsg+0x117/0x1e0
[  619.080453][ T8101]  ? __sys_sendmsg_sock+0x30/0x30
[  619.085483][ T8101]  ? xfd_validate_state+0x5d/0x180
[  619.090900][ T8101]  ? syscall_enter_from_user_mode+0x7f/0x120
[  619.097201][ T8101]  do_syscall_64+0x40/0x110
[  619.102089][ T8101]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  619.108369][ T8101] RIP: 0033:0x7fb700fd30b9
[  619.113235][ T8101] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  619.133820][ T8101] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  619.142506][ T8101] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  619.150920][ T8101] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
[  619.158992][ T8101] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  619.167491][ T8101] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  619.175759][ T8101] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  619.183949][ T8101]  </TASK>
[  619.188319][ T8101] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory.
[  619.252174][ T8102] netlink: 20 bytes leftover after parsing attributes in process `syz-executor772'.
[  619.263929][ T8102] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000'
[  619.273480][ T8102] CPU: 1 PID: 8102 Comm: syz-executor772 Not tainted 6.6.0-syzkaller-15859-g89cdf9d55601 #0
[  619.283755][ T8102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  619.295250][ T8102] Call Trace:
[  619.298567][ T8102]  <TASK>
[  619.301610][ T8102]  dump_stack_lvl+0x125/0x1b0
[  619.306401][ T8102]  sysfs_warn_dup+0x7f/0xa0
[  619.311175][ T8102]  sysfs_create_dir_ns+0x249/0x2b0
[  619.316460][ T8102]  ? sysfs_create_mount_point+0xb0/0xb0
[  619.322104][ T8102]  ? spin_bug+0x1d0/0x1d0
[  619.326987][ T8102]  ? net_namespace+0x12/0x40
[  619.331623][ T8102]  ? device_namespace+0x8d/0xc0
[  619.336788][ T8102]  kobject_add_internal+0x2c8/0x970
[  619.342277][ T8102]  kobject_add+0x16f/0x240
[  619.346794][ T8102]  ? kset_create_and_add+0x190/0x190
[  619.352368][ T8102]  ? do_raw_spin_unlock+0x173/0x230
[  619.357672][ T8102]  ? kobject_put+0xbe/0x440
[  619.362222][ T8102]  ? device_add+0xc35/0x1aa0
[  619.367093][ T8102]  device_add+0x289/0x1aa0
[  619.371540][ T8102]  ? device_initialize+0x510/0x510
[  619.376858][ T8102]  ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270
[  619.383730][ T8102]  ? __init_waitqueue_head+0xca/0x150
[  619.389128][ T8102]  netdev_register_kobject+0x183/0x3f0
[  619.394876][ T8102]  register_netdevice+0xbe6/0x14b0
[  619.400085][ T8102]  ? unregister_netdevice_queue+0x3d0/0x3d0
[  619.406013][ T8102]  ? validate_linkmsg+0x6fc/0x9c0
[  619.411176][ T8102]  br_dev_newlink+0x27/0x110
[  619.415865][ T8102]  ? br_changelink+0x1760/0x1760
[  619.420846][ T8102]  __rtnl_newlink+0x1173/0x1930
[  619.425730][ T8102]  ? rtnl_link_unregister+0x260/0x260
[  619.431483][ T8102]  rtnl_newlink+0x67/0xa0
[  619.435831][ T8102]  ? __rtnl_newlink+0x1930/0x1930
[  619.440953][ T8102]  rtnetlink_rcv_msg+0x3c7/0xe00
[  619.446100][ T8102]  ? rtnl_fill_vf+0x4a0/0x4a0
[  619.450793][ T8102]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  619.456872][ T8102]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  619.463398][ T8102]  netlink_rcv_skb+0x16b/0x440
[  619.468669][ T8102]  ? rtnl_fill_vf+0x4a0/0x4a0
[  619.473737][ T8102]  ? netlink_ack+0x1380/0x1380
[  619.479270][ T8102]  ? lock_sync+0x190/0x190
[  619.483927][ T8102]  ? netlink_deliver_tap+0x1a0/0xd00
[  619.489508][ T8102]  ? _copy_from_iter+0x2c1/0x10f0
[  619.495539][ T8102]  netlink_unicast+0x53b/0x810
[  619.500587][ T8102]  ? netlink_attachskb+0x880/0x880
[  619.505811][ T8102]  ? __sanitizer_cov_trace_switch+0x54/0x90
[  619.511991][ T8102]  ? __phys_addr_symbol+0x30/0x70
[  619.517161][ T8102]  ? __check_object_size+0x323/0x730
[  619.522675][ T8102]  netlink_sendmsg+0x93c/0xe40
[  619.527738][ T8102]  ? netlink_unicast+0x810/0x810
[  619.532712][ T8102]  ? bpf_lsm_socket_sendmsg+0x9/0x10
[  619.540072][ T8102]  ? netlink_unicast+0x810/0x810
[  619.545584][ T8102]  __sock_sendmsg+0xd5/0x180
[  619.550867][ T8102]  ____sys_sendmsg+0x6ac/0x940
[  619.555816][ T8102]  ? copy_msghdr_from_user+0x10b/0x160
[  619.561560][ T8102]  ? kernel_sendmsg+0x50/0x50
[  619.566267][ T8102]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  619.572432][ T8102]  ___sys_sendmsg+0x135/0x1d0
[  619.577219][ T8102]  ? do_recvmmsg+0x740/0x740
[  619.581823][ T8102]  ? find_held_lock+0x2d/0x110
[  619.586613][ T8102]  ? preempt_count_sub+0x160/0x160
[  619.592453][ T8102]  ? __fget_light+0x1fc/0x260
[  619.597392][ T8102]  __sys_sendmsg+0x117/0x1e0
[  619.602238][ T8102]  ? __sys_sendmsg_sock+0x30/0x30
[  619.609815][ T8102]  ? syscall_enter_from_user_mode+0x7f/0x120
[  619.616345][ T8102]  do_syscall_64+0x40/0x110
[  619.621259][ T8102]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  619.627358][ T8102] RIP: 0033:0x7fb700fd30b9
[  619.631813][ T8102] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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
[  619.652042][ T8102] RSP: 002b:00007ffc5993aa98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  619.660994][ T8102] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb700fd30b9
[  619.668988][ T8102] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
[  619.677139][ T8102] RBP: 0000000000096eb6 R08: 0000000000000000 R09: 0000000000000006
[  619.685376][ T8102] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5993aaac
[  619.693924][ T8102] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001