INFO: task syz-executor.3:8474 blocked for more than 144 seconds. Not tainted 6.1.90-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:0 pid:8474 ppid:7998 flags:0x00000005 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xee4/0x1c98 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6693 rwsem_down_read_slowpath+0x534/0x858 kernel/locking/rwsem.c:1094 __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0xac/0x308 kernel/locking/rwsem.c:1522 inode_lock_shared include/linux/fs.h:768 [inline] open_last_lookups fs/namei.c:3551 [inline] path_openat+0x5dc/0x2548 fs/namei.c:3782 do_filp_open+0x1bc/0x3cc fs/namei.c:3812 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+0x1f0/0x240 fs/open.c:1345 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 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-executor.3:8475 blocked for more than 144 seconds. Not tainted 6.1.90-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:0 pid:8475 ppid:7998 flags:0x0000000d Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xee4/0x1c98 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 rwsem_down_write_slowpath+0xc80/0x156c kernel/locking/rwsem.c:1189 __down_write_common kernel/locking/rwsem.c:1314 [inline] __down_write kernel/locking/rwsem.c:1323 [inline] down_write+0x84/0x88 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] open_last_lookups fs/namei.c:3549 [inline] path_openat+0x5ec/0x2548 fs/namei.c:3782 do_filp_open+0x1bc/0x3cc fs/namei.c:3812 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+0x1f0/0x240 fs/open.c:1345 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 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: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015a14e70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:516 1 lock held by rcu_tasks_trace/13: #0: ffff800015a15670 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:516 1 lock held by khungtaskd/28: #0: ffff800015a14ca0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 4 locks held by kworker/u4:6/1785: 2 locks held by getty/3987: #0: ffff0000c2e3f098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001bcc02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2188 3 locks held by kworker/1:11/4417: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2265 #1: ffff80001e277c20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2267 #2: ffff800017e20e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 2 locks held by kworker/u4:11/8113: 2 locks held by syz-executor.3/8469: 1 lock held by syz-executor.3/8474: #0: ffff0000f7a94188 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] #0: ffff0000f7a94188 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: open_last_lookups fs/namei.c:3551 [inline] #0: ffff0000f7a94188 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: path_openat+0x5dc/0x2548 fs/namei.c:3782 2 locks held by syz-executor.3/8475: #0: ffff0000f32c6460 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:393 #1: ffff0000f7a94188 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff0000f7a94188 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: open_last_lookups fs/namei.c:3549 [inline] #1: ffff0000f7a94188 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: path_openat+0x5ec/0x2548 fs/namei.c:3782 1 lock held by syz-executor.0/11242: #0: ffff0000f158a0e0 (&type->s_umount_key#62/1){+.+.}-{3:3}, at: alloc_super+0x1b4/0x824 fs/super.c:228 2 locks held by syz-executor.4/11256: #0: ffff0000f1c5b210 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000f1c5b210 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release net/socket.c:653 [inline] #0: ffff0000f1c5b210 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: sock_close+0x80/0x1fc net/socket.c:1400 #1: ffff0000cb329130 (sk_lock-AF_PPPOX){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1748 [inline] #1: ffff0000cb329130 (sk_lock-AF_PPPOX){+.+.}-{0:0}, at: pppol2tp_release+0x58/0x328 net/l2tp/l2tp_ppp.c:434 1 lock held by syz-executor.1/11261: #0: ffff0000dd15c0e0 (&type->s_umount_key#62/1){+.+.}-{3:3}, at: alloc_super+0x1b4/0x824 fs/super.c:228 3 locks held by syz-executor.3/11265: 3 locks held by syz-executor.2/11268: #0: ffff800017e20e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 #1: ffff0001156a87c8 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5639 [inline] #1: ffff0001156a87c8 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: cfg80211_wext_siwessid net/wireless/wext-compat.c:1489 [inline] #1: ffff0001156a87c8 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: __cfg80211_wext_siwessid+0x7c/0x140 net/wireless/wext-compat.c:1606 #2: ffff0000c8a38d40 (&wdev->mtx){+.+.}-{3:3}, at: wdev_lock net/wireless/core.h:231 [inline] #2: ffff0000c8a38d40 (&wdev->mtx){+.+.}-{3:3}, at: cfg80211_ibss_wext_siwessid+0xf8/0x2e0 net/wireless/ibss.c:409 2 locks held by syz-executor.2/11269: #0: ffff800017e7bcf0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:860 #1: ffff800017e20e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 =============================================