INFO: task syz-executor.4:13313 blocked for more than 143 seconds. Not tainted 6.3.0-rc2-syzkaller-00069-g0ddc84d2dd43 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:24872 pid:13313 ppid:5112 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0x173b/0x4630 kernel/sched/core.c:6622 schedule+0xc3/0x180 kernel/sched/core.c:6698 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6757 __mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799 ni_lock fs/ntfs3/ntfs_fs.h:1124 [inline] ntfs_read_folio+0x193/0x210 fs/ntfs3/inode.c:702 filemap_read_folio+0x19d/0x7a0 mm/filemap.c:2424 filemap_update_page mm/filemap.c:2508 [inline] filemap_get_pages+0x15a5/0x20c0 mm/filemap.c:2622 filemap_read+0x45a/0x1170 mm/filemap.c:2693 call_read_iter include/linux/fs.h:1845 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x7e2/0xbe0 fs/read_write.c:470 ksys_pread64 fs/read_write.c:665 [inline] __do_sys_pread64 fs/read_write.c:675 [inline] __se_sys_pread64 fs/read_write.c:672 [inline] __x64_sys_pread64+0x1aa/0x230 fs/read_write.c:672 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f24d228c0f9 RSP: 002b:00007f24d2fde168 EFLAGS: 00000246 ORIG_RAX: 0000000000000011 RAX: ffffffffffffffda RBX: 00007f24d23abf80 RCX: 00007f24d228c0f9 RDX: 00000000000000f8 RSI: 0000000020000080 RDI: 0000000000000004 RBP: 00007f24d22e7b39 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000ffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7aab269f R14: 00007f24d2fde300 R15: 0000000000022000 INFO: task syz-executor.4:13344 blocked for more than 144 seconds. Not tainted 6.3.0-rc2-syzkaller-00069-g0ddc84d2dd43 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:25384 pid:13344 ppid:5112 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0x173b/0x4630 kernel/sched/core.c:6622 schedule+0xc3/0x180 kernel/sched/core.c:6698 io_schedule+0x8c/0x100 kernel/sched/core.c:8884 folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301 __filemap_get_folio+0x44e/0xe50 mm/filemap.c:1936 pagecache_get_page+0x2c/0x240 mm/folio-compat.c:99 find_or_create_page include/linux/pagemap.h:632 [inline] ni_readpage_cmpr+0x313/0xa70 fs/ntfs3/frecord.c:2131 ntfs_read_folio+0x19e/0x210 fs/ntfs3/inode.c:703 filemap_read_folio+0x19d/0x7a0 mm/filemap.c:2424 filemap_create_folio mm/filemap.c:2552 [inline] filemap_get_pages+0xdf7/0x20c0 mm/filemap.c:2605 filemap_read+0x45a/0x1170 mm/filemap.c:2693 call_read_iter include/linux/fs.h:1845 [inline] generic_file_splice_read+0x240/0x640 fs/splice.c:402 do_splice_to fs/splice.c:885 [inline] splice_direct_to_actor+0x40c/0xbd0 fs/splice.c:956 do_splice_direct+0x283/0x3d0 fs/splice.c:1065 do_sendfile+0x620/0xff0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f24d228c0f9 RSP: 002b:00007f24d2fbd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f24d23ac050 RCX: 00007f24d228c0f9 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000007 RBP: 00007f24d22e7b39 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000001ffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7aab269f R14: 00007f24d2fbd300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8cf255f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510 1 lock held by rcu_tasks_trace/13: #0: ffffffff8cf25df0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510 1 lock held by khungtaskd/28: #0: ffffffff8cf25420 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by getty/4749: #0: ffff88802ca14098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177 1 lock held by syz-executor.1/5106: #0: ffffffff8cf2a8f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline] #0: ffffffff8cf2a8f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:989 2 locks held by kworker/1:11/9819: 2 locks held by kworker/0:23/12479: #0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363 #1: ffffc90013f57d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365 2 locks held by kworker/1:16/21541: 2 locks held by syz-executor.4/13313: #0: ffff88803980ddc0 (mapping.invalidate_lock#6){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline] #0: ffff88803980ddc0 (mapping.invalidate_lock#6){++++}-{3:3}, at: filemap_update_page mm/filemap.c:2474 [inline] #0: ffff88803980ddc0 (mapping.invalidate_lock#6){++++}-{3:3}, at: filemap_get_pages+0x8b1/0x20c0 mm/filemap.c:2622 #1: ffff88803980d980 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1124 [inline] #1: ffff88803980d980 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_read_folio+0x193/0x210 fs/ntfs3/inode.c:702 3 locks held by syz-executor.4/13344: #0: ffff888020d36460 (sb_writers#19){.+.+}-{0:0}, at: do_sendfile+0x5fb/0xff0 fs/read_write.c:1254 #1: ffff88803980ddc0 (mapping.invalidate_lock#6){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline] #1: ffff88803980ddc0 (mapping.invalidate_lock#6){++++}-{3:3}, at: filemap_create_folio mm/filemap.c:2544 [inline] #1: ffff88803980ddc0 (mapping.invalidate_lock#6){++++}-{3:3}, at: filemap_get_pages+0xb1c/0x20c0 mm/filemap.c:2605 #2: ffff88803980d980 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1124 [inline] #2: ffff88803980d980 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_read_folio+0x193/0x210 fs/ntfs3/inode.c:702 1 lock held by udevd/13373: #0: ffff8880b983be98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:539 2 locks held by kworker/u4:7/16794: #0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363 #1: ffffc9003b84fd20 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365 2 locks held by kworker/u4:12/16843: #0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363 #1: ffffc9003de97d20 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365 2 locks held by dhcpcd/16847: #0: ffff88801d4ba130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline] #0: ffff88801d4ba130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xbd0 net/packet/af_packet.c:3193 #1: ffffffff8cf2a8f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline] #1: ffffffff8cf2a8f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:989 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc2-syzkaller-00069-g0ddc84d2dd43 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xec2/0xf00 kernel/hung_task.c:379 kthread+0x270/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 15756 Comm: kworker/u4:33 Not tainted 6.3.0-rc2-syzkaller-00069-g0ddc84d2dd43 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: phy4 ieee80211_iface_work RIP: 0010:ieee80211_sta_get_rates+0x34a/0x720 Code: e8 cb 4d 60 f7 84 db 0f 99 c0 44 08 f0 88 44 24 07 45 31 f6 4c 89 e8 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 ef e8 f6 fb b5 f7 <49> 63 c6 4d 89 ec 4d 8b 6d 00 4c 8d 3c 40 4b 8d 5c bd 00 48 89 d8 RSP: 0018:ffffc900037cf840 EFLAGS: 00000246 RAX: 1ffff110068de67a RBX: 00000000000000f0 RCX: ffff88807ef99d40 RDX: 0000000000000000 RSI: 000000000000006e RDI: 00000000000000f0 RBP: 000000000000006e R08: ffffffff8a2a22a6 R09: fffffbfff1ca6ea6 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880346f33d0 R13: ffff8880346f33d0 R14: 0000000000000009 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d423000 CR3: 00000000271d2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_update_sta_info net/mac80211/ibss.c:1003 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1118 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline] ieee80211_ibss_rx_queued_mgmt+0x1133/0x2cf0 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1583 [inline] ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1637 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2390 worker_thread+0xa63/0x1210 kernel/workqueue.c:2537 kthread+0x270/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308