INFO: task syz-executor:9089 blocked for more than 143 seconds.
Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:20992 pid:9089 tgid:9089 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5264 [inline]
__schedule+0x1893/0x4b50 kernel/sched/core.c:6607
__schedule_loop kernel/sched/core.c:6684 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6756
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
netdev_run_todo+0x3a0/0x1000 net/core/dev.c:10778
tun_detach drivers/net/tun.c:704 [inline]
tun_chr_close+0x137/0x1b0 drivers/net/tun.c:3517
__fput+0x241/0x880 fs/file_table.c:431
task_work_run+0x251/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x176f/0x1810 kernel/signal.c:2936
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcc1437c93c
RSP: 002b:00007ffc0f640d40 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffe00 RBX: 0000000000000003 RCX: 00007fcc1437c93c
RDX: 0000000000000028 RSI: 00007ffc0f640df0 RDI: 00000000000000f9
RBP: 00007ffc0f640d9c R08: 0000000000000000 R09: 0079746972756365
R10: 00007fcc145087e0 R11: 0000000000000246 R12: 000000000000004f
R13: 000000000009b762 R14: 000000000009b659 R15: 00007ffc0f640df0
INFO: task syz-executor:9111 blocked for more than 145 seconds.
Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:20992 pid:9111 tgid:9111 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5264 [inline]
__schedule+0x1893/0x4b50 kernel/sched/core.c:6607
__schedule_loop kernel/sched/core.c:6684 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6756
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
netdev_run_todo+0x3a0/0x1000 net/core/dev.c:10778
tun_detach drivers/net/tun.c:704 [inline]
tun_chr_close+0x137/0x1b0 drivers/net/tun.c:3517
__fput+0x241/0x880 fs/file_table.c:431
task_work_run+0x251/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x176f/0x1810 kernel/signal.c:2936
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2e89d7c93c
RSP: 002b:00007ffdada8bcf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffe00 RBX: 0000000000000003 RCX: 00007f2e89d7c93c
RDX: 0000000000000028 RSI: 00007ffdada8bda0 RDI: 00000000000000f9
RBP: 00007ffdada8bd4c R08: 0000000000000000 R09: 0079746972756365
R10: 00007f2e89f087e0 R11: 0000000000000246 R12: 000055557ca5a5eb
R13: 000055557ca5a590 R14: 000000000009b28a R15: 00007ffdada8bda0
INFO: task syz-executor:9225 blocked for more than 146 seconds.
Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:20992 pid:9225 tgid:9225 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5264 [inline]
__schedule+0x1893/0x4b50 kernel/sched/core.c:6607
__schedule_loop kernel/sched/core.c:6684 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6756
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
netdev_run_todo+0x3a0/0x1000 net/core/dev.c:10778
tun_detach drivers/net/tun.c:704 [inline]
tun_chr_close+0x137/0x1b0 drivers/net/tun.c:3517
__fput+0x241/0x880 fs/file_table.c:431
task_work_run+0x251/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x176f/0x1810 kernel/signal.c:2936
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f80abf7c93c
RSP: 002b:00007fff83f12490 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f80abf7c93c
RDX: 0000000000000028 RSI: 00007fff83f12540 RDI: 00000000000000f9
RBP: 00007fff83f124ec R08: 0000000000000000 R09: 0079746972756365
R10: 00007f80ac1087e0 R11: 0000000000000246 R12: 000000000000001d
R13: 000000000009b755 R14: 000000000009b755 R15: 00007fff83f12540
INFO: task syz-executor:9248 blocked for more than 147 seconds.
Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:21392 pid:9248 tgid:9248 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5264 [inline]
__schedule+0x1893/0x4b50 kernel/sched/core.c:6607
__schedule_loop kernel/sched/core.c:6684 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6756
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
netdev_run_todo+0x3a0/0x1000 net/core/dev.c:10778
tun_detach drivers/net/tun.c:704 [inline]
tun_chr_close+0x137/0x1b0 drivers/net/tun.c:3517
__fput+0x241/0x880 fs/file_table.c:431
task_work_run+0x251/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x176f/0x1810 kernel/signal.c:2936
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd74d774157
RSP: 002b:00007ffdd897bd70 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000000000000060 RCX: 00007fd74d774157
RDX: 0000000040000000 RSI: 00007ffdd897bdcc RDI: 00000000ffffffff
RBP: 00007ffdd897bdcc R08: 0000000000000000 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000293 R12: 00005555878e85eb
R13: 00005555878e8590 R14: 000000000009bb4b R15: 00007ffdd897be20
INFO: task syz-executor:9724 blocked for more than 148 seconds.
Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:20608 pid:9724 tgid:9724 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5264 [inline]
__schedule+0x1893/0x4b50 kernel/sched/core.c:6607
__schedule_loop kernel/sched/core.c:6684 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6756
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
netdev_run_todo+0x3a0/0x1000 net/core/dev.c:10778
tun_detach drivers/net/tun.c:704 [inline]
tun_chr_close+0x137/0x1b0 drivers/net/tun.c:3517
__fput+0x241/0x880 fs/file_table.c:431
task_work_run+0x251/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x176f/0x1810 kernel/signal.c:2936
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2cdb77c797
RSP: 002b:00007ffd5787a568 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
RAX: 0000000000000000 RBX: 00007ffd5787a5b0 RCX: 00007f2cdb77c797
RDX: 00000000000001ff RSI: 00007ffd5787a5b0 RDI: 00000000ffffff9c
RBP: 00007ffd5787a59c R08: 0000000000000003 R09: 00007ffd5787a307
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000049
R13: 000000000009bafc R14: 000000000009bafc R15: 00007ffd5787a5f0
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e9389e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e9389e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e9389e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6701
2 locks held by kworker/u8:7/4522:
2 locks held by getty/4977:
#0: ffff88814b9ad0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
5 locks held by kworker/0:5/5284:
2 locks held by kworker/0:6/5315:
2 locks held by kworker/0:7/6288:
1 lock held by syz-executor/9070:
#0: ffffffff8e93de40 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
1 lock held by syz-executor/9089:
#0: ffffffff8e93de40 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
1 lock held by syz-executor/9111:
#0: ffffffff8e93de40 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
1 lock held by syz-executor/9225:
#0: ffffffff8e93de40 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
1 lock held by syz-executor/9248:
#0: ffffffff8e93de40 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
2 locks held by kworker/0:3/9418:
1 lock held by syz-executor/9724:
#0: ffffffff8e93de40 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
4 locks held by syz-executor/10059:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff88802766a488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10060:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff8880222d3088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10063:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff88805a18fc88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
7 locks held by syz-executor/10065:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff888030cb0088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
#4: ffff8880687250e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff8880687250e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1094 [inline]
#4: ffff8880687250e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1292
#5: ffff888068726250 (&devlink->lock_key#40){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1672
#6: ffffffff8e93de40 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4561
4 locks held by syz-executor/10067:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff8880600ec088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10069:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff88807b827488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10115:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff888035f9fc88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10121:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff88808d707088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10122:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff888084157888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10125:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff88806a765888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10128:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff88808111a088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10131:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff888065b15488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10170:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff88808afa7488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10185:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff888034dc5488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10187:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff8880a6ba0088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10189:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff8880a6ba8488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10191:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff8880a6ba1088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
4 locks held by syz-executor/10193:
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2930 [inline]
#0: ffff88807c82e420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff888091bb1488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888027495e18 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f5676c8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 10108 Comm: kworker/0:9 Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:nft_do_chain+0x43f/0x1da0 net/netfilter/nf_tables_core.c:286
Code: 48 c7 c1 c0 a0 14 8d 48 39 c8 0f 84 92 01 00 00 48 c7 c1 e0 a5 14 8d 48 39 c8 0f 84 01 03 00 00 48 c7 c1 40 ab 14 8d 48 39 c8 <0f> 84 fb 04 00 00 e8 f6 1e b2 f7 e9 31 0c 00 00 e8 ec 1e b2 f7 48
RSP: 0018:ffffc900000073a0 EFLAGS: 00000202
RAX: ffffffff8d152460 RBX: ffff8880222ca110 RCX: ffffffff8d14ab40
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000075f0 R08: ffffffff89e29f79 R09: ffffc90000007570
R10: dffffc0000000000 R11: fffff52000000eb0 R12: ffff8880222ca100
R13: 1ffff11004459422 R14: ffff8880222ca108 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff83f11ec0 CR3: 000000000e734000 CR4: 0000000000350ef0
Call Trace:
nft_do_chain_inet+0x418/0x6b0 net/netfilter/nft_chain_filter.c:161
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc5/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312
NF_HOOK+0x3a6/0x450 include/linux/netfilter.h:314
__netif_receive_skb_one_core net/core/dev.c:5662 [inline]
__netif_receive_skb+0x2bf/0x650 net/core/dev.c:5775
process_backlog+0x662/0x15b0 net/core/dev.c:6107
__napi_poll+0xcd/0x490 net/core/dev.c:6771
napi_poll net/core/dev.c:6840 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6962
handle_softirqs+0x2c7/0x980 kernel/softirq.c:554
do_softirq+0x11b/0x1e0 kernel/softirq.c:455
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382
spin_unlock_bh include/linux/spinlock.h:396 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]
nsim_dev_trap_report_work+0x75d/0xaa0 drivers/net/netdevsim/dev.c:850
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244