INFO: task syz-executor.1:4529 blocked for more than 143 seconds. Not tainted 5.15.167-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack: 0 pid: 4529 ppid: 4277 flags:0x00000005 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5027 [inline] __schedule+0xf10/0x1e48 kernel/sched/core.c:6373 schedule+0x11c/0x1c8 kernel/sched/core.c:6456 rwsem_down_write_slowpath+0xd94/0x17e0 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:834 [inline] blkdev_fallocate+0x208/0x438 block/fops.c:600 vfs_fallocate+0x478/0x5b4 fs/open.c:308 ksys_fallocate fs/open.c:331 [inline] __do_sys_fallocate fs/open.c:339 [inline] __se_sys_fallocate fs/open.c:337 [inline] __arm64_sys_fallocate+0xc0/0x110 fs/open.c:337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz-executor.2:4537 blocked for more than 143 seconds. Not tainted 5.15.167-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack: 0 pid: 4537 ppid: 4270 flags:0x00000005 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5027 [inline] __schedule+0xf10/0x1e48 kernel/sched/core.c:6373 schedule+0x11c/0x1c8 kernel/sched/core.c:6456 rwsem_down_write_slowpath+0xd94/0x17e0 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:834 [inline] blkdev_fallocate+0x208/0x438 block/fops.c:600 vfs_fallocate+0x478/0x5b4 fs/open.c:308 ksys_fallocate fs/open.c:331 [inline] __do_sys_fallocate fs/open.c:339 [inline] __se_sys_fallocate fs/open.c:337 [inline] __arm64_sys_fallocate+0xc0/0x110 fs/open.c:337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz-executor.4:4555 blocked for more than 143 seconds. Not tainted 5.15.167-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack: 0 pid: 4555 ppid: 4278 flags:0x00000005 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5027 [inline] __schedule+0xf10/0x1e48 kernel/sched/core.c:6373 schedule+0x11c/0x1c8 kernel/sched/core.c:6456 rwsem_down_write_slowpath+0xd94/0x17e0 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:834 [inline] blkdev_fallocate+0x208/0x438 block/fops.c:600 vfs_fallocate+0x478/0x5b4 fs/open.c:308 ksys_fallocate fs/open.c:331 [inline] __do_sys_fallocate fs/open.c:339 [inline] __se_sys_fallocate fs/open.c:337 [inline] __arm64_sys_fallocate+0xc0/0x110 fs/open.c:337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 3 locks held by kworker/0:1/13: #0: ffff0000d2cdad38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff80001bc77c00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 #2: ffff800016bf2868 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 1 lock held by khungtaskd/27: #0: ffff800014c917e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311 3 locks held by kworker/u4:1/136: 3 locks held by kworker/u4:4/402: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff8000201e7c00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 #2: ffff800016bf2868 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 2 locks held by kworker/0:2/1534: #0: ffff0000c0021938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff800023c47c00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 2 locks held by getty/3783: #0: ffff0000d30ec098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001d60e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 drivers/tty/n_tty.c:2158 3 locks held by kworker/0:5/4466: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff800020987c00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 #2: ffff0000e34ed240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x274/0x33c4 drivers/net/netdevsim/fib.c:1478 1 lock held by syz-executor.3/4509: 1 lock held by syz-executor.1/4529: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.2/4537: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.4/4555: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 3 locks held by kworker/1:9/4833: #0: ffff0000d2cdad38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff800020907c00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 #2: ffff800016bf2868 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 1 lock held by syz-executor.0/4835: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.3/4837: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.1/4856: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.2/4859: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.4/4861: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.0/4920: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.3/4919: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 3 locks held by kworker/0:7/4926: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff800020eb7c00 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 #2: ffff0000eebf8400 (&nsim_dev->port_list_lock){+.+.}-{3:3}, at: nsim_dev_trap_report_work+0x60/0x90c drivers/net/netdevsim/dev.c:757 1 lock held by syz-executor.1/4937: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.2/4944: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.4/4946: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.0/5007: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.3/5009: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.1/5011: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.2/5027: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.4/5029: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.1/5056: #0: ffff800016bf2868 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff800016bf2868 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac net/core/rtnetlink.c:5615 4 locks held by syz-executor.2/5068: #0: ffff0000d4814460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x228/0xb44 fs/read_write.c:590 #1: ffff0001066fb488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:287 #2: ffff0000cdb5d3a8 (kn->active#232){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:288 #3: ffff8000161c1248 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: new_device_store+0x170/0x70c drivers/net/netdevsim/bus.c:295 8 locks held by syz-executor.4/5071: #0: ffff0000d4814460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x228/0xb44 fs/read_write.c:590 #1: ffff0001001d4088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:287 #2: ffff0000cdb5d490 (kn->active#231){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:288 #3: ffff8000161c1248 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xec/0x3bc drivers/net/netdevsim/bus.c:344 #4: ffff0000e2a30178 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #4: ffff0000e2a30178 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1044 [inline] #4: ffff0000e2a30178 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xbc/0x6ac drivers/base/dd.c:1259 #5: ffff0000eebf8400 (&nsim_dev->port_list_lock){+.+.}-{3:3}, at: nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1359 [inline] #5: ffff0000eebf8400 (&nsim_dev->port_list_lock){+.+.}-{3:3}, at: nsim_dev_reload_destroy+0xfc/0x214 drivers/net/netdevsim/dev.c:1561 #6: ffff800016bf2868 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 #7: ffff800014c95de8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #7: ffff800014c95de8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x320/0x660 kernel/rcu/tree_exp.h:845 1 lock held by syz-executor.0/5088: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 1 lock held by syz-executor.3/5095: #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline] #0: ffff0000cc2c0990 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x438 block/fops.c:600 =============================================