INFO: task syz.2.19:4606 blocked for more than 143 seconds. Not tainted 6.1.147-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.19 state:D stack:0 pid:4606 ppid:4485 flags:0x00000001 Call trace: __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5244 [inline] __schedule+0xddc/0x1b18 kernel/sched/core.c:6561 schedule+0xc4/0x170 kernel/sched/core.c:6637 io_schedule+0x84/0x154 kernel/sched/core.c:8797 folio_wait_bit_common+0x56c/0x9c4 mm/filemap.c:1324 folio_put_wait_locked mm/filemap.c:1493 [inline] do_read_cache_folio+0xa8/0x544 mm/filemap.c:3609 read_cache_folio+0x68/0x88 mm/filemap.c:3659 erofs_bread+0x13c/0x520 fs/erofs/data.c:50 erofs_find_target_block fs/erofs/namei.c:102 [inline] erofs_namei+0x1fc/0xc00 fs/erofs/namei.c:175 erofs_lookup+0x158/0x450 fs/erofs/namei.c:204 __lookup_slow+0x24c/0x370 fs/namei.c:1690 lookup_slow+0x5c/0x80 fs/namei.c:1707 walk_component fs/namei.c:1998 [inline] link_path_walk+0x76c/0xc6c fs/namei.c:2325 path_openat+0x1c0/0x2680 fs/namei.c:3779 do_filp_open+0x174/0x344 fs/namei.c:3810 do_sys_openat2+0x128/0x3d8 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __arm64_sys_openat+0x120/0x154 fs/open.c:1345 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 INFO: task syz.3.20:4612 blocked for more than 143 seconds. Not tainted 6.1.147-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.20 state:D stack:0 pid:4612 ppid:4494 flags:0x00000001 Call trace: __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5244 [inline] __schedule+0xddc/0x1b18 kernel/sched/core.c:6561 schedule+0xc4/0x170 kernel/sched/core.c:6637 io_schedule+0x84/0x154 kernel/sched/core.c:8797 folio_wait_bit_common+0x56c/0x9c4 mm/filemap.c:1324 folio_put_wait_locked mm/filemap.c:1493 [inline] do_read_cache_folio+0xa8/0x544 mm/filemap.c:3609 read_cache_folio+0x68/0x88 mm/filemap.c:3659 erofs_bread+0x13c/0x520 fs/erofs/data.c:50 erofs_find_target_block fs/erofs/namei.c:102 [inline] erofs_namei+0x1fc/0xc00 fs/erofs/namei.c:175 erofs_lookup+0x158/0x450 fs/erofs/namei.c:204 __lookup_slow+0x24c/0x370 fs/namei.c:1690 lookup_slow+0x5c/0x80 fs/namei.c:1707 walk_component fs/namei.c:1998 [inline] link_path_walk+0x76c/0xc6c fs/namei.c:2325 path_openat+0x1c0/0x2680 fs/namei.c:3779 do_filp_open+0x174/0x344 fs/namei.c:3810 do_sys_openat2+0x128/0x3d8 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __arm64_sys_openat+0x120/0x154 fs/open.c:1345 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 INFO: task syz.4.21:4618 blocked for more than 143 seconds. Not tainted 6.1.147-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.21 state:D stack:0 pid:4618 ppid:4486 flags:0x00000001 Call trace: __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5244 [inline] __schedule+0xddc/0x1b18 kernel/sched/core.c:6561 schedule+0xc4/0x170 kernel/sched/core.c:6637 io_schedule+0x84/0x154 kernel/sched/core.c:8797 folio_wait_bit_common+0x56c/0x9c4 mm/filemap.c:1324 folio_put_wait_locked mm/filemap.c:1493 [inline] do_read_cache_folio+0xa8/0x544 mm/filemap.c:3609 read_cache_folio+0x68/0x88 mm/filemap.c:3659 erofs_bread+0x13c/0x520 fs/erofs/data.c:50 erofs_find_target_block fs/erofs/namei.c:102 [inline] erofs_namei+0x1fc/0xc00 fs/erofs/namei.c:175 erofs_lookup+0x158/0x450 fs/erofs/namei.c:204 __lookup_slow+0x24c/0x370 fs/namei.c:1690 lookup_slow+0x5c/0x80 fs/namei.c:1707 walk_component fs/namei.c:1998 [inline] link_path_walk+0x76c/0xc6c fs/namei.c:2325 path_openat+0x1c0/0x2680 fs/namei.c:3779 do_filp_open+0x174/0x344 fs/namei.c:3810 do_sys_openat2+0x128/0x3d8 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __arm64_sys_openat+0x120/0x154 fs/open.c:1345 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Showing all locks held in the system: 4 locks held by kworker/u4:1/11: #0: ffff0000c0845138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff80001c877c20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff800017712ed0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x12c/0xa74 net/core/net_namespace.c:594 #3: ffff80001771f548 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 1 lock held by rcu_tasks_kthre/12: #0: ffff800015287770 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xbb4 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffff800015287f90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xbb4 kernel/rcu/tasks.h:517 1 lock held by khungtaskd/28: #0: ffff800015286e00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 3 locks held by kworker/u4:5/1698: 1 lock held by udevd/3936: 2 locks held by getty/4080: #0: ffff0000d669a098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80002084e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf9c drivers/tty/n_tty.c:2198 3 locks held by kworker/0:14/4462: #0: ffff0000d609e138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800021297c20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff80001771f548 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 3 locks held by kworker/0:15/4463: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800021397c20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff80001771f548 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 3 locks held by kworker/1:5/4483: #0: ffff0000d609e138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800020f97c20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff80001771f548 (rtnl_mutex){+.+.}-{3:3} , at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 1 lock held by syz.0.17/4542: 1 lock held by syz.0.17/4543: 1 lock held by syz.2.19/4605: 1 lock held by syz.2.19/4606: #0: ffff0000e53f8c48 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] #0: ffff0000e53f8c48 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1706 1 lock held by syz.3.20/4609: 1 lock held by syz.3.20/4612: #0: ffff0000f41d8198 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] #0: ffff0000f41d8198 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1706 1 lock held by syz.1.18/4611: 1 lock held by syz.1.18/4613: 1 lock held by syz.4.21/4617: 1 lock held by syz.4.21/4618: #0: ffff0000f41d96f8 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] #0: ffff0000f41d96f8 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1706 1 lock held by syz.5.22/4637: 1 lock held by syz.5.22/4638: 1 lock held by syz.8.25/4780: 1 lock held by syz.8.25/4784: #0: ffff0000f41dac58 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1706 1 lock held by syz.6.23/4782: 1 lock held by syz.6.23/4785: #0: ffff0000f41db708 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] #0: ffff0000f41db708 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1706 1 lock held by syz.7.24/4789: 1 lock held by syz.7.24/4790: #0: ffff0000f41dc1b8 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] #0: ffff0000f41dc1b8 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1706 1 lock held by syz.9.26/4795: 1 lock held by syz.9.26/4796: #0: ffff0000f41dcc68 ( &type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] &type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1706 3 locks held by kworker/u4:8/5072: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800022587c20 ((linkwatch_work).work){+.+.}-{0:0} , at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff80001771f548 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 1 lock held by syz-executor/10853: #0: ffff80001771f548 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff80001771f548 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6ec/0xce4 net/core/rtnetlink.c:6150 =============================================