INFO: task syz.9.25:5737 blocked for more than 143 seconds. Not tainted 6.1.123-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.9.25 state:D stack:26248 pid:5737 ppid:5711 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 rwsem_down_write_slowpath+0xea1/0x14b0 kernel/locking/rwsem.c:1189 filemap_invalidate_lock include/linux/fs.h:803 [inline] blk_ioctl_zeroout block/ioctl.c:186 [inline] blkdev_common_ioctl+0x151a/0x2360 block/ioctl.c:490 blkdev_ioctl+0x2f5/0x760 block/ioctl.c:613 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856 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: 0033:0x7f7b64d85d29 RSP: 002b:00007ffd19f643b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7b64f75fa0 RCX: 00007f7b64d85d29 RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000003 RBP: 00007f7b64e01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f7b64f75fa0 R14: 00007f7b64f75fa0 R15: 0000000000000313 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d32b290 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d32ba90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517 1 lock held by khungtaskd/28: #0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6510 2 locks held by klogd/3611: #0: ffff8880b8f3a9d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537 #1: ffff8880b8f27788 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x419/0x790 kernel/sched/psi.c:999 2 locks held by getty/4009: #0: ffff888030e26098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc9000325e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2198 1 lock held by syz.8.24/5564: #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:803 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:186 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x151a/0x2360 block/ioctl.c:490 1 lock held by syz.9.25/5737: #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:803 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:186 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x151a/0x2360 block/ioctl.c:490 1 lock held by syz.0.26/5921: #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:803 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:186 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x151a/0x2360 block/ioctl.c:490 1 lock held by syz.1.27/6311: #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:803 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:186 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x151a/0x2360 block/ioctl.c:490 1 lock held by syz.2.28/6738: #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:803 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:186 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x151a/0x2360 block/ioctl.c:490 1 lock held by syz.3.29/7215: #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:803 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:186 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x151a/0x2360 block/ioctl.c:490 1 lock held by syz.4.30/7602: #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:803 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:186 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x151a/0x2360 block/ioctl.c:490 1 lock held by syz.5.31/8046: #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:803 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:186 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x151a/0x2360 block/ioctl.c:490 1 lock held by syz.6.32/8473: #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:803 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:186 [inline] #0: ffff888148c79ec0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x151a/0x2360 block/ioctl.c:490 2 locks held by dhcpcd-run-hook/8685: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.123-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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+0x1ae/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 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5601 Comm: kworker/u4:7 Not tainted 6.1.123-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: phy24 ieee80211_iface_work RIP: 0010:ieee80211_sta_get_rates+0x3d3/0x720 net/mac80211/util.c:2195 Code: 38 84 c0 0f 85 fe 00 00 00 0f b7 1b 83 7c 24 2c 1f 0f 87 29 01 00 00 e8 eb 1d 4e f7 4d 89 e5 03 5c 24 44 89 d8 99 f7 7c 24 78 <89> c3 89 c7 8b 6c 24 48 89 ee e8 2e 1f 4e f7 39 eb 75 62 bf 40 00 RSP: 0018:ffffc90004fbf840 EFLAGS: 00000206 RAX: 0000000000000078 RBX: 0000000000000078 RCX: ffff888030eed940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8a3c7dd7 R09: fffffbfff1d360ee R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888027043370 R13: ffff888027043370 R14: 0000000000000006 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1f7c44bba8 CR3: 000000000d08e000 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+0x1137/0x2dd0 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1668 [inline] ieee80211_iface_work+0x7aa/0xce0 net/mac80211/iface.c:1722 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