INFO: task syz-executor.0:5088 blocked for more than 143 seconds.
Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:21408 pid:5088 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0x9d1/0xe40 kernel/sched/core.c:6606
schedule+0xcb/0x190 kernel/sched/core.c:6682
io_schedule+0x83/0x100 kernel/sched/core.c:8868
bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbb/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1d4/0x250 kernel/sched/wait_bit.c:117
lock_buffer include/linux/buffer_head.h:397 [inline]
hfs_mdb_commit+0xacd/0xf80 fs/hfs/mdb.c:325
hfs_sync_fs+0x11/0x20 fs/hfs/super.c:35
sync_filesystem+0xe8/0x220 fs/sync.c:56
generic_shutdown_super+0x6b/0x310 fs/super.c:474
kill_block_super+0x79/0xd0 fs/super.c:1386
deactivate_locked_super+0xa7/0xf0 fs/super.c:332
cleanup_mnt+0x494/0x520 fs/namespace.c:1291
task_work_run+0x243/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff7da28d537
RSP: 002b:00007ffefa51d038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff7da28d537
RDX: 00007ffefa51d109 RSI: 000000000000000a RDI: 00007ffefa51d100
RBP: 00007ffefa51d100 R08: 00000000ffffffff R09: 00007ffefa51ced0
R10: 00005555563618b3 R11: 0000000000000246 R12: 00007ff7da2e6b24
R13: 00007ffefa51e1c0 R14: 0000555556361810 R15: 00007ffefa51e200
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d523a50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d524250 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8d523880 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:6/2847:
#0: ffff88801798d138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000bc37d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff88813fe600e0 (&type->s_umount_key#41){.+.+}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415
2 locks held by getty/4742:
#0: ffff88802831f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.0/5088:
#0: ffff88807ab720e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0x96/0xd0 fs/super.c:362
2 locks held by kworker/1:3/5144:
#0: ffff888012871538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000425fd00 ((work_completion)(&(&sbi->mdb_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e3/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x19b/0x3e0 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+0xcd5/0xd20 kernel/hung_task.c:377
kthread+0x266/0x300 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: 47 Comm: kworker/u4:3 Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: phy11 ieee80211_iface_work
RIP: 0010:memset_erms+0xb/0x10 arch/x86/lib/memset_64.S:65
Code: 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 aa <4c> 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 01 01
RSP: 0018:ffffc90000b87388 EFLAGS: 00000203
RAX: 00000000000000fc RBX: ffff88801ffab000 RCX: 0000000000000000
RDX: 0000000000000026 RSI: 00000000000000fc RDI: ffffed1003ff5680
RBP: 00000000000002d0 R08: dffffc0000000000 R09: ffffed1003ff565a
R10: fffff52000170eff R11: 1ffff92000170efa R12: ffff88802b1a4068
R13: 00000000000002d0 R14: 0000000000000b20 R15: ffff888012841dc0
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556c8748a600 CR3: 000000000d28e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
____kasan_kmalloc mm/kasan/common.c:363 [inline]
__kasan_kmalloc+0x7f/0xb0 mm/kasan/common.c:380
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slab_common.c:968 [inline]
__kmalloc+0xaf/0x190 mm/slab_common.c:981
kmalloc include/linux/slab.h:584 [inline]
kzalloc include/linux/slab.h:720 [inline]
ieee802_11_parse_elems_full+0xff/0x2ad0 net/mac80211/util.c:1619
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2260 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2267 [inline]
ieee80211_bss_info_update+0x945/0x1030 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+0x19a8/0x2d00 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1583 [inline]
ieee80211_iface_work+0x773/0xcf0 net/mac80211/iface.c:1637
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308