INFO: task syz.0.1438:9184 blocked for more than 145 seconds. Not tainted 6.1.102-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.1438 state:D stack:24368 pid:9184 ppid:6174 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6561 schedule+0xbf/0x180 kernel/sched/core.c:6637 io_schedule+0x88/0x100 kernel/sched/core.c:8789 folio_wait_bit_common+0x878/0x1290 mm/filemap.c:1296 lock_page include/linux/pagemap.h:995 [inline] pickup_page_for_submission fs/erofs/zdata.c:1346 [inline] z_erofs_submit_queue fs/erofs/zdata.c:1539 [inline] z_erofs_runqueue+0x993/0x1ca0 fs/erofs/zdata.c:1611 z_erofs_readahead+0xc26/0x1030 fs/erofs/zdata.c:1758 read_pages+0x17f/0x830 mm/readahead.c:161 page_cache_ra_unbounded+0x68b/0x7b0 mm/readahead.c:270 do_page_cache_ra mm/readahead.c:300 [inline] force_page_cache_ra+0x2a3/0x300 mm/readahead.c:331 force_page_cache_readahead mm/internal.h:106 [inline] generic_fadvise+0x553/0x7b0 mm/fadvise.c:107 vfs_fadvise mm/fadvise.c:185 [inline] ksys_fadvise64_64 mm/fadvise.c:199 [inline] __do_sys_fadvise64 mm/fadvise.c:214 [inline] __se_sys_fadvise64 mm/fadvise.c:212 [inline] __x64_sys_fadvise64+0x138/0x180 mm/fadvise.c:212 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f115e577299 RSP: 002b:00007f115f3a7048 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd RAX: ffffffffffffffda RBX: 00007f115e705f80 RCX: 00007f115e577299 RDX: 0000000000000000 RSI: 0000000000e0ffff RDI: 0000000000000005 RBP: 00007f115e5e48e6 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f115e705f80 R15: 00007fffc0e32608 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d32af10 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d32b710 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516 1 lock held by khungtaskd/27: #0: ffffffff8d32ad40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #0: ffffffff8d32ad40 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #0: ffffffff8d32ad40 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494 3 locks held by udevd/3092: 2 locks held by getty/3395: #0: ffff8880290b7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2198 3 locks held by kworker/u4:13/4898: #0: ffff8880b983aa18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0xa8/0x140 kernel/sched/core.c:545 #1: ffff8880b9827788 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x43d/0x770 kernel/sched/psi.c:1001 #2: ffffffff92147160 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_check_no_obj_freed lib/debugobjects.c:967 [inline] #2: ffffffff92147160 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_check_no_obj_freed+0xd8/0x4e0 lib/debugobjects.c:1008 6 locks held by kworker/1:18/7723: #0: ffff88823bc18138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc90003b1fd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #2: ffff888022e7b190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline] #2: ffff888022e7b190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5730 drivers/usb/core/hub.c:5801 #3: ffff888022e7e4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3159 [inline] #3: ffff888022e7e4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5373 [inline] #3: ffff888022e7e4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5617 [inline] #3: ffff888022e7e4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5773 [inline] #3: ffff888022e7e4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2471/0x5730 drivers/usb/core/hub.c:5855 #4: ffff888022914668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5374 [inline] #4: ffff888022914668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5617 [inline] #4: ffff888022914668 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5773 [inline] #4: ffff888022914668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x249e/0x5730 drivers/usb/core/hub.c:5855 #5: ffffffff8de48050 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}, at: hub_port_reset+0x1f4/0x1f00 drivers/usb/core/hub.c:3016 1 lock held by syz.0.1438/9184: #0: ffff88805d700890 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline] #0: ffff88805d700890 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xed/0x7b0 mm/readahead.c:226 1 lock held by syz.4.1512/9436: #0: ffff888050470de8 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline] #0: ffff888050470de8 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xed/0x7b0 mm/readahead.c:226 1 lock held by syz.3.1546/9578: #0: ffff88805d7028a0 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline] #0: ffff88805d7028a0 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xed/0x7b0 mm/readahead.c:226 1 lock held by syz.1.1670/10271: #0: ffff888050471898 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline] #0: ffff888050471898 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xed/0x7b0 mm/readahead.c:226 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.102-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xf88/0xfd0 kernel/hung_task.c:377 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3723 Comm: kworker/u4:5 Not tainted 6.1.102-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Workqueue: phy44 ieee80211_iface_work RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:206 Code: 00 0f 0b 0f 1f 00 53 48 89 fb e8 17 00 00 00 48 8b 3d 18 24 0f 0d 48 89 de 5b e9 07 b1 56 00 cc cc cc cc cc cc cc 48 8b 04 24 <65> 48 8b 0d a4 d3 77 7e 65 8b 15 a5 d3 77 7e f7 c2 00 01 ff 00 74 RSP: 0018:ffffc9000446f0d8 EFLAGS: 00000216 RAX: ffffffff8a2edd9c RBX: 0000000000000013 RCX: ffff888027e00000 RDX: ffff88805a74c88a RSI: 0000000000000013 RDI: 0000000000000001 RBP: ffffc9000446f4b0 R08: ffffffff8a2edd5e R09: fffff5200088de81 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000002 R13: 0000000000000004 R14: ffff88805a74c89c R15: ffff88805a74c889 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f77596d1ab8 CR3: 000000000d08e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: _ieee802_11_parse_elems_full+0x2b1c/0x3880 net/mac80211/util.c:1040 ieee802_11_parse_elems_full+0xd60/0x1380 net/mac80211/util.c:1522 ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2249 [inline] ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2256 [inline] ieee80211_bss_info_update+0x99f/0xf00 net/mac80211/scan.c:212 ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline] ieee80211_ibss_rx_queued_mgmt+0x1962/0x2dd0 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1632 [inline] ieee80211_iface_work+0x7aa/0xce0 net/mac80211/iface.c:1686 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295