INFO: task udevd:5555 blocked for more than 143 seconds. Not tainted 5.19.0-rc8-syzkaller-00105-g6e2c0490769e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:25632 pid: 5555 ppid: 2974 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5146 [inline] __schedule+0xa00/0x4b50 kernel/sched/core.c:6458 schedule+0xd2/0x1f0 kernel/sched/core.c:6530 io_schedule+0xba/0x130 kernel/sched/core.c:8645 folio_wait_bit_common+0x4f2/0xa90 mm/filemap.c:1324 folio_wait_bit mm/filemap.c:1473 [inline] folio_wait_locked include/linux/pagemap.h:1028 [inline] folio_wait_locked include/linux/pagemap.h:1025 [inline] do_read_cache_folio+0x4ff/0x760 mm/filemap.c:3530 do_read_cache_page mm/filemap.c:3602 [inline] read_cache_page+0x59/0x2a0 mm/filemap.c:3611 read_mapping_page include/linux/pagemap.h:759 [inline] read_part_sector+0xf6/0x920 block/partitions/core.c:715 adfspart_check_ICS+0x9a/0x690 block/partitions/acorn.c:360 check_partition block/partitions/core.c:147 [inline] blk_add_partitions block/partitions/core.c:600 [inline] bdev_disk_changed block/partitions/core.c:686 [inline] bdev_disk_changed+0x629/0xf60 block/partitions/core.c:653 blkdev_get_whole+0x18a/0x2d0 block/bdev.c:686 blkdev_get_by_dev.part.0+0x5ec/0xb90 block/bdev.c:823 blkdev_get_by_dev+0x6b/0x80 block/bdev.c:857 blkdev_open+0x13c/0x2c0 block/fops.c:481 do_dentry_open+0x4a1/0x11f0 fs/open.c:848 do_open fs/namei.c:3520 [inline] path_openat+0x1c71/0x2910 fs/namei.c:3653 do_filp_open+0x1aa/0x400 fs/namei.c:3680 do_sys_openat2+0x16d/0x4c0 fs/open.c:1278 do_sys_open fs/open.c:1294 [inline] __do_sys_openat fs/open.c:1310 [inline] __se_sys_openat fs/open.c:1305 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1305 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb930525697 RSP: 002b:00007ffd5f2fa430 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000055996369a190 RCX: 00007fb930525697 RDX: 00000000000a0800 RSI: 00005599636758c0 RDI: 00000000ffffff9c RBP: 00005599636758c0 R08: 0000000000000001 R09: 00007ffd5f3ea080 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800 R13: 0000559963698280 R14: 0000000000000001 R15: 0000559963674910 INFO: task syz-executor.1:12081 blocked for more than 143 seconds. Not tainted 5.19.0-rc8-syzkaller-00105-g6e2c0490769e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:28032 pid:12081 ppid: 3638 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5146 [inline] __schedule+0xa00/0x4b50 kernel/sched/core.c:6458 schedule+0xd2/0x1f0 kernel/sched/core.c:6530 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6589 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747 blkdev_put+0xbc/0x770 block/bdev.c:912 blkdev_close+0x64/0x80 block/fops.c:495 __fput+0x277/0x9d0 fs/file_table.c:317 task_work_run+0xdd/0x1a0 kernel/task_work.c:177 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe0e9e3be4b RSP: 002b:00007ffd30ea1530 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fe0e9e3be4b RDX: 0000001b2e720000 RSI: 0000001b2e730b78 RDI: 0000000000000003 RBP: 00007fe0e9f9d960 R08: 0000000000000000 R09: 000000004f1dc4c1 R10: 00007ffd30ff2090 R11: 0000000000000293 R12: 0000000000060f1d R13: 00007ffd30ea1630 R14: 00007fe0e9f9c100 R15: 0000000000000032 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8bd871e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491 2 locks held by getty/3287: #0: ffff888026424098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc90002d232e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2124 1 lock held by udevd/5555: #0: ffff88801df0e918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90 block/bdev.c:814 1 lock held by udevd/6080: #0: ffff88801dd2c918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90 block/bdev.c:814 1 lock held by syz-executor.1/12081: #0: ffff88801df0e918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xbc/0x770 block/bdev.c:912 1 lock held by syz-executor.0/12150: #0: ffff88801dd2c918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xbc/0x770 block/bdev.c:912 1 lock held by syz-executor.1/12186: #0: ffff88801df0e918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90 block/bdev.c:814 1 lock held by syz-executor.1/12187: #0: ffff88801df0e918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90 block/bdev.c:814 1 lock held by syz-executor.1/12294: #0: ffff88801df0e918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90 block/bdev.c:814 1 lock held by syz-executor.1/12295: #0: ffff88801df0e918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90 block/bdev.c:814 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.19.0-rc8-syzkaller-00105-g6e2c0490769e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline] watchdog+0xc1d/0xf50 kernel/hung_task.c:369 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 6284 Comm: kworker/u4:11 Not tainted 5.19.0-rc8-syzkaller-00105-g6e2c0490769e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Workqueue: phy3 ieee80211_iface_work RIP: 0010:unwind_next_frame+0x73/0x1cc0 arch/x86/kernel/unwind_orc.c:419 Code: 5f c3 49 8d 6d 48 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 d4 15 00 00 49 8b 45 48 48 89 44 24 10 <49> 8d 45 38 48 89 c2 48 89 44 24 08 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc90015957380 EFLAGS: 00000246 RAX: ffffffff816959ac RBX: 0000000000000001 RCX: ffffc90015957480 RDX: 1ffff92002b2ae87 RSI: ffffffff816959ac RDI: ffffc900159573f0 RBP: ffffc90015957438 R08: ffffffff8e380e50 R09: ffffc90015957424 R10: fffff52002b2ae89 R11: ffffc90015957480 R12: ffffc900159574a8 R13: ffffc900159573f0 R14: ffff888016c60000 R15: ffffea0000988680 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c004338358 CR3: 000000000ba8e000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free+0x166/0x1a0 mm/kasan/common.c:328 kasan_slab_free include/linux/kasan.h:200 [inline] slab_free_hook mm/slub.c:1754 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1780 slab_free mm/slub.c:3536 [inline] kfree+0xd6/0x4d0 mm/slub.c:4584 ieee802_11_parse_elems_crc+0xb15/0x1050 net/mac80211/util.c:1551 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2257 [inline] ieee80211_bss_info_update+0x42c/0xb00 net/mac80211/scan.c:212 ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline] ieee80211_ibss_rx_queued_mgmt+0x1ab8/0x33f0 net/mac80211/ibss.c:1639 ieee80211_iface_process_skb net/mac80211/iface.c:1528 [inline] ieee80211_iface_work+0xa78/0xd10 net/mac80211/iface.c:1582 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306