INFO: task syz.2.306:8382 blocked for more than 143 seconds. Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.306 state:D stack:0 pid:8382 tgid:8376 ppid:6531 task_flags:0x400140 flags:0x04000011 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5397 [inline] __schedule+0x141c/0x2a14 kernel/sched/core.c:6786 __schedule_loop kernel/sched/core.c:6864 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6879 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6936 rwsem_down_read_slowpath+0x4ac/0x7c8 kernel/locking/rwsem.c:1084 __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x9c/0x2f8 kernel/locking/rwsem.c:1526 __super_lock fs/super.c:59 [inline] super_lock+0x240/0x32c fs/super.c:121 __iterate_supers+0x124/0x578 fs/super.c:923 iterate_supers+0x2c/0x3c fs/super.c:939 quota_sync_all fs/quota/quota.c:69 [inline] __do_sys_quotactl fs/quota/quota.c:938 [inline] __se_sys_quotactl fs/quota/quota.c:917 [inline] __arm64_sys_quotactl+0x36c/0xb34 fs/quota/quota.c:917 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Showing all locks held in the system: 4 locks held by kworker/u8:0/12: #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff800097a97bc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff8000928c7ba8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 #3: ffff0000d83b8768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6062 [inline] #3: ffff0000d83b8768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_leave_invalid_chans net/wireless/reg.c:2471 [inline] #3: ffff0000d83b8768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_check_chans_work+0x11c/0xd88 net/wireless/reg.c:2486 3 locks held by kworker/u8:1/14: 2 locks held by kworker/1:0/24: 3 locks held by kworker/1:1/26: 1 lock held by khungtaskd/32: #0: ffff80008f869980 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 2 locks held by kworker/u8:2/41: 3 locks held by kworker/u8:3/42: 4 locks held by kworker/u9:0/52: #0: ffff0000c3ebb148 ((wq_completion)hci5){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff8000991a7bc0 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff0000c9a44dc0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x184/0x33c net/bluetooth/hci_sync.c:331 #3: ffff0000c9a440b8 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x1a0/0xb8c net/bluetooth/hci_sync.c:5670 3 locks held by kworker/u8:4/71: 3 locks held by kworker/u8:5/186: 3 locks held by kworker/u8:6/252: 3 locks held by kworker/u8:7/289: 3 locks held by kworker/u8:8/321: 2 locks held by kworker/u8:9/544: 3 locks held by kworker/u8:10/660: #0: ffff0000d2b00148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff80009d177bc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff8000928c7ba8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by kworker/1:2/3921: 1 lock held by kworker/R-bat_e/4255: 2 locks held by syslogd/6128: 2 locks held by udevd/6143: 1 lock held by dhcpcd/6197: 2 locks held by crond/6272: 2 locks held by getty/6295: #0: ffff0000d2a460a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009ba3e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222 2 locks held by udevd/6520: 3 locks held by kworker/0:3/6530: 1 lock held by syz-executor/6539: #0: ffff0000ce93e0e0 (&type->s_umount_key#83){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000ce93e0e0 (&type->s_umount_key#83){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000ce93e0e0 (&type->s_umount_key#83){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 1 lock held by kworker/1:3/6590: 3 locks held by kworker/1:4/6597: 2 locks held by kworker/1:5/6611: 2 locks held by kworker/0:6/6638: 2 locks held by kworker/1:6/6639: 3 locks held by kworker/u8:11/6648: 3 locks held by kworker/u8:12/6651: 2 locks held by kworker/0:7/6652: 1 lock held by udevd/6690: 3 locks held by kworker/u8:13/6996: 3 locks held by kworker/u8:14/6998: 3 locks held by kworker/u8:15/7001: 3 locks held by kworker/u8:16/7004: 3 locks held by kworker/u8:17/7008: 2 locks held by syz-executor/7059: #0: ffff0000d25440e0 (&type->s_umount_key#59){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000d25440e0 (&type->s_umount_key#59){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000d25440e0 (&type->s_umount_key#59){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008fc98be8 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1444 2 locks held by syz-executor/8191: 2 locks held by syz.1.295/8306: 1 lock held by syz.2.306/8382: #0: ffff0000d25440e0 (&type->s_umount_key#59){++++}-{4:4}, at: __super_lock fs/super.c:59 [inline] #0: ffff0000d25440e0 (&type->s_umount_key#59){++++}-{4:4}, at: super_lock+0x240/0x32c fs/super.c:121 2 locks held by syz.4.318/8441: 4 locks held by kworker/u8:18/8473: 2 locks held by syz-executor/8474: 2 locks held by kworker/1:7/8476: 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