INFO: task kworker/u4:1:11 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:1 state:D stack:22728 pid:11 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_write_slowpath+0x600/0x12e0 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write_common kernel/locking/rwsem.c:1302 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x1e8/0x220 kernel/locking/rwsem.c:1563
kernfs_remove_by_name_ns+0x89/0x120 fs/kernfs/dir.c:1657
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files+0x96/0x1c0 fs/sysfs/group.c:28
sysfs_remove_group+0x8b/0x170 fs/sysfs/group.c:288
sysfs_remove_groups fs/sysfs/group.c:312 [inline]
sysfs_remove_groups+0x60/0xa0 fs/sysfs/group.c:304
destroy_gid_attrs drivers/infiniband/core/sysfs.c:1189 [inline]
ib_free_port_attrs+0x277/0x490 drivers/infiniband/core/sysfs.c:1414
remove_one_compat_dev drivers/infiniband/core/device.c:1002 [inline]
rdma_dev_exit_net+0x2b4/0x5a0 drivers/infiniband/core/device.c:1140
ops_exit_list+0xb0/0x170 net/core/net_namespace.c:169
cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:606
process_one_work+0x9bf/0x1750 kernel/workqueue.c:2293
worker_thread+0x669/0x1090 kernel/workqueue.c:2440
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task udevd:4439 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:24616 pid:4439 ppid:1 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd6e492a5a4
RSP: 002b:00007ffc1fed3c48 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055d32411a280 RCX: 00007fd6e492a5a4
RDX: 0000000000090800 RSI: 000055d3241044a0 RDI: 00000000ffffff9c
RBP: 000055d324255e30 R08: 0000000000090800 R09: 000055d3241044a0
R10: 0000000000000000 R11: 0000000000000287 R12: 000055d3241044a0
R13: 00000000000000ff R14: 00007ffc1fed3ca0 R15: 0000000000000000
INFO: task syz-executor.0:5113 blocked for more than 144 seconds.
Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24336 pid:5113 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f794388bc38
RSP: 002b:00007ffce6d1cef0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000003fe RCX: 00007f794388bc38
RDX: 0000000000090800 RSI: 00007f79438e6bc8 RDI: 00000000ffffff9c
RBP: 00007ffce6d1cfbc R08: 0000000000090800 R09: 00007f79438e6bc8
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000a6966 R14: 000000000000001a R15: 00007ffce6d1d020
INFO: task syz-executor.3:5117 blocked for more than 145 seconds.
Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24232 pid:5117 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc04708bc38
RSP: 002b:00007ffe208f7cb0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000003cb RCX: 00007fc04708bc38
RDX: 0000000000090800 RSI: 00007fc0470e6bc8 RDI: 00000000ffffff9c
RBP: 00007ffe208f7d7c R08: 0000000000090800 R09: 00007fc0470e6bc8
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000a61c8 R14: 000000000000001a R15: 00007ffe208f7de0
INFO: task syz-executor.2:5118 blocked for more than 145 seconds.
Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:24520 pid:5118 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd525a8bc38
RSP: 002b:00007ffebe2162b0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000003d6 RCX: 00007fd525a8bc38
RDX: 0000000000090800 RSI: 00007fd525ae6bc8 RDI: 00000000ffffff9c
RBP: 00007ffebe21637c R08: 0000000000090800 R09: 00007fd525ae6bc8
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000a66ca R14: 0000000000000000 R15: 00007ffebe2163e0
INFO: task syz-executor.4:5119 blocked for more than 146 seconds.
Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24160 pid:5119 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f144908bc38
RSP: 002b:00007ffe1da544e0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000003b0 RCX: 00007f144908bc38
RDX: 0000000000090800 RSI: 00007f14490e6bc8 RDI: 00000000ffffff9c
RBP: 00007ffe1da545ac R08: 0000000000090800 R09: 00007f14490e6bc8
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000a64bb R14: 0000000000000003 R15: 00007ffe1da54610
INFO: task syz-executor.5:5123 blocked for more than 146 seconds.
Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:23936 pid:5123 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6f828bc38
RSP: 002b:00007ffed7332f90 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000429 RCX: 00007fa6f828bc38
RDX: 0000000000090800 RSI: 00007fa6f82e6bc8 RDI: 00000000ffffff9c
RBP: 00007ffed733305c R08: 0000000000090800 R09: 00007fa6f82e6bc8
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000a60c0 R14: 000000000000001a R15: 00007ffed73330c0
INFO: task kworker/1:3:5173 blocked for more than 147 seconds.
Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3 state:D stack:22736 pid:5173 ppid:2 flags:0x00004000
Workqueue: events usb_gadget_state_work
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_find_and_get_ns+0x73/0xc0 fs/kernfs/dir.c:891
kernfs_find_and_get include/linux/kernfs.h:597 [inline]
sysfs_notify+0x93/0xd0 fs/sysfs/file.c:190
usb_gadget_state_work+0x48/0x60 drivers/usb/gadget/udc/core.c:1041
process_one_work+0x9bf/0x1750 kernel/workqueue.c:2293
worker_thread+0x669/0x1090 kernel/workqueue.c:2440
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor.3:11957 blocked for more than 147 seconds.
Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24888 pid:11957 ppid:5117 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6754
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
cfg802154_pernet_exit+0x17/0xd0 net/ieee802154/core.c:327
ops_exit_list+0xb0/0x170 net/core/net_namespace.c:169
setup_net+0x9bd/0xe60 net/core/net_namespace.c:356
copy_net_ns+0x320/0x6b0 net/core/net_namespace.c:483
create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
copy_namespaces+0x410/0x500 kernel/nsproxy.c:179
copy_process+0x314a/0x7740 kernel/fork.c:2275
kernel_clone+0xeb/0x9a0 kernel/fork.c:2687
__do_sys_clone3+0x1cd/0x2e0 kernel/fork.c:2986
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc04708c0c9
RSP: 002b:00007fc047d4f038 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007fc0471abf80 RCX: 00007fc04708c0c9
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00007fc047d4f050
RBP: 00007fc0470e7ae9 R08: 0000000000000000 R09: 0000000000000058
R10: 00007fc047d4f050 R11: 0000000000000246 R12: 0000000000000058
R13: 00007ffe208f7abf R14: 00007fc047d4f300 R15: 0000000000022000
INFO: task syz-executor.4:11983 blocked for more than 148 seconds.
Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:25360 pid:11983 ppid:5119 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6754
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
ip_tunnel_delete_nets+0x94/0x3a0 net/ipv4/ip_tunnel.c:1121
ops_exit_list+0x125/0x170 net/core/net_namespace.c:174
setup_net+0x9bd/0xe60 net/core/net_namespace.c:356
copy_net_ns+0x320/0x6b0 net/core/net_namespace.c:483
create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
copy_namespaces+0x410/0x500 kernel/nsproxy.c:179
copy_process+0x314a/0x7740 kernel/fork.c:2275
kernel_clone+0xeb/0x9a0 kernel/fork.c:2687
__do_sys_clone+0xba/0x100 kernel/fork.c:2828
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f144908c0c9
RSP: 002b:00007f1449d77118 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f14491abf80 RCX: 00007f144908c0c9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000e9002000
RBP: 00007f14490e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffe1da542ef R14: 00007f1449d77300 R15: 0000000000022000
Showing all threads with locks held in the system:
task:kworker/u4:1 state:D stack:22728 pid:11 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_write_slowpath+0x600/0x12e0 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write_common kernel/locking/rwsem.c:1302 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x1e8/0x220 kernel/locking/rwsem.c:1563
kernfs_remove_by_name_ns+0x89/0x120 fs/kernfs/dir.c:1657
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files+0x96/0x1c0 fs/sysfs/group.c:28
sysfs_remove_group+0x8b/0x170 fs/sysfs/group.c:288
sysfs_remove_groups fs/sysfs/group.c:312 [inline]
sysfs_remove_groups+0x60/0xa0 fs/sysfs/group.c:304
destroy_gid_attrs drivers/infiniband/core/sysfs.c:1189 [inline]
ib_free_port_attrs+0x277/0x490 drivers/infiniband/core/sysfs.c:1414
remove_one_compat_dev drivers/infiniband/core/device.c:1002 [inline]
rdma_dev_exit_net+0x2b4/0x5a0 drivers/infiniband/core/device.c:1140
ops_exit_list+0xb0/0x170 net/core/net_namespace.c:169
cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:606
process_one_work+0x9bf/0x1750 kernel/workqueue.c:2293
worker_thread+0x669/0x1090 kernel/workqueue.c:2440
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
4 locks held by kworker/u4:1/11:
#0: ffff8880125df938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880125df938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880125df938 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8880125df938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff8880125df938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff8880125df938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x86d/0x1750 kernel/workqueue.c:2264
#1: ffffc90000107da8 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1750 kernel/workqueue.c:2268
#2: ffffffff8e0b2890 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9f/0xb10 net/core/net_namespace.c:568
#3: ffff888012473948 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_remove_by_name_ns+0x89/0x120 fs/kernfs/dir.c:1657
task:rcu_tasks_kthre state:I stack:29040 pid:12 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rcu_tasks_one_gp+0x484/0xcd0 kernel/rcu/tasks.h:517
rcu_tasks_kthread+0x77/0xa0 kernel/rcu/tasks.h:555
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c793470 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xcd0 kernel/rcu/tasks.h:510
task:rcu_tasks_trace state:I stack:29208 pid:13 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rcu_tasks_one_gp+0x484/0xcd0 kernel/rcu/tasks.h:517
rcu_tasks_kthread+0x77/0xa0 kernel/rcu/tasks.h:555
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c793170 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xcd0 kernel/rcu/tasks.h:510
task:udevd state:D stack:24616 pid:4439 ppid:1 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd6e492a5a4
RSP: 002b:00007ffc1fed3c48 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055d32411a280 RCX: 00007fd6e492a5a4
RDX: 0000000000090800 RSI: 000055d3241044a0 RDI: 00000000ffffff9c
RBP: 000055d324255e30 R08: 0000000000090800 R09: 000055d3241044a0
R10: 0000000000000000 R11: 0000000000000287 R12: 000055d3241044a0
R13: 00000000000000ff R14: 00007ffc1fed3ca0 R15: 0000000000000000
1 lock held by udevd/4439:
#0: ffff888012473948 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
task:getty state:S stack:23336 pid:4756 ppid:1 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
wait_woken+0x197/0x200 kernel/sched/wait.c:463
n_tty_read+0x1055/0x13e0 drivers/tty/n_tty.c:2243
iterate_tty_read drivers/tty/tty_io.c:852 [inline]
tty_read+0x30e/0x5a0 drivers/tty/tty_io.c:927
call_read_iter include/linux/fs.h:1846 [inline]
new_sync_read fs/read_write.c:389 [inline]
vfs_read+0x681/0x930 fs/read_write.c:470
ksys_read+0x12b/0x250 fs/read_write.c:613
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd2549708fe
RSP: 002b:00007ffda7afaae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055be9b4fc910 RCX: 00007fd2549708fe
RDX: 0000000000000001 RSI: 00007ffda7afab00 RDI: 0000000000000000
RBP: 000055be9b4fc970 R08: 0000000000000007 R09: 000055be9b4fdcd0
R10: 0000000000000063 R11: 0000000000000246 R12: 000055be9b4fc9ac
R13: 00007ffda7afab00 R14: 0000000000000000 R15: 000055be9b4fc9ac
2 locks held by getty/4756:
#0: ffff88814bce8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
task:syz-executor.0 state:D stack:24336 pid:5113 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f794388bc38
RSP: 002b:00007ffce6d1cef0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000003fe RCX: 00007f794388bc38
RDX: 0000000000090800 RSI: 00007f79438e6bc8 RDI: 00000000ffffff9c
RBP: 00007ffce6d1cfbc R08: 0000000000090800 R09: 00007f79438e6bc8
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000a6966 R14: 000000000000001a R15: 00007ffce6d1d020
1 lock held by syz-executor.0/5113:
#0: ffff888012473948 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
task:syz-executor.3 state:D stack:24232 pid:5117 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc04708bc38
RSP: 002b:00007ffe208f7cb0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000003cb RCX: 00007fc04708bc38
RDX: 0000000000090800 RSI: 00007fc0470e6bc8 RDI: 00000000ffffff9c
RBP: 00007ffe208f7d7c R08: 0000000000090800 R09: 00007fc0470e6bc8
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000a61c8 R14: 000000000000001a R15: 00007ffe208f7de0
1 lock held by syz-executor.3/5117:
#0: ffff888012473948 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
task:syz-executor.2 state:D stack:24520 pid:5118 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd525a8bc38
RSP: 002b:00007ffebe2162b0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000003d6 RCX: 00007fd525a8bc38
RDX: 0000000000090800 RSI: 00007fd525ae6bc8 RDI: 00000000ffffff9c
RBP: 00007ffebe21637c R08: 0000000000090800 R09: 00007fd525ae6bc8
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000a66ca R14: 0000000000000000 R15: 00007ffebe2163e0
1 lock held by syz-executor.2/5118:
#0: ffff888012473948 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
task:syz-executor.4 state:D stack:24160 pid:5119 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
do_inode_permission fs/namei.c:459 [inline]
inode_permission.part.0+0x3d6/0x670 fs/namei.c:526
inode_permission fs/namei.c:507 [inline]
may_lookup fs/namei.c:1716 [inline]
link_path_walk.part.0+0x81e/0xdf0 fs/namei.c:2263
link_path_walk fs/namei.c:2246 [inline]
path_openat+0x261/0x2b40 fs/namei.c:3711
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f144908bc38
RSP: 002b:00007ffe1da544e0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000003b0 RCX: 00007f144908bc38
RDX: 0000000000090800 RSI: 00007f14490e6bc8 RDI: 00000000ffffff9c
RBP: 00007ffe1da545ac R08: 0000000000090800 R09: 00007f14490e6bc8
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000a64bb R14: 0000000000000003 R15: 00007ffe1da54610
1 lock held by syz-executor.4/5119:
#0: ffff888012473948 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0xbc/0x120 fs/kernfs/inode.c:288
task:syz-executor.5 state:D stack:23936 pid:5123 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511