INFO: task syz.0.17:6526 blocked for more than 143 seconds.
Not tainted 6.14.0-rc7-syzkaller-00205-g586de92313fc #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.17 state:D stack:24816 pid:6526 tgid:6524 ppid:6418 task_flags:0x400040 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x190a/0x4c30 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x147/0x320 kernel/sched/core.c:6857
super_lock+0x331/0x3f0 fs/super.c:114
super_lock_shared fs/super.c:139 [inline]
iterate_supers+0x88/0x510 fs/super.c:931
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:938 [inline]
__se_sys_quotactl+0x38a/0xa30 fs/quota/quota.c:917
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f4dbe78d169
RSP: 002b:00007f4dbf5bd038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f4dbe9a6080 RCX: 00007f4dbe78d169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000102
RBP: 00007f4dbe80e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4dbe9a6080 R15: 00007ffe92a93cc8
Showing all locks held in the system:
1 lock held by khungtaskd/31:
#0: ffffffff8e336860 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e336860 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e336860 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6746
2 locks held by kworker/u8:2/36:
2 locks held by getty/5533:
#0: ffff888034bca0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900033332f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x612/0x1770 drivers/tty/n_tty.c:2211
1 lock held by syz.0.17/6525:
#0: ffff88804c39a0e0 (&type->s_umount_key#71/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344
1 lock held by syz.2.19/6679:
#0: ffff88806f6040e0 (&type->s_umount_key#71/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344
1 lock held by syz.3.20/6697:
#0: ffff8880628c60e0 (&type->s_umount_key#71/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344
1 lock held by syz.4.21/6721:
#0: ffff88806263a0e0 (&type->s_umount_key#71/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344
1 lock held by syz.5.22/6744:
#0: ffff8880117fe0e0 (&type->s_umount_key#71/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344
1 lock held by syz.7.24/6797:
#0: ffff8880311400e0 (&type->s_umount_key#71/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344
1 lock held by syz.8.25/6823:
#0: ffff88805dde80e0 (&type->s_umount_key#71/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.14.0-rc7-syzkaller-00205-g586de92313fc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x23d/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x194/0x2f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:236 [inline]
watchdog+0x1048/0x1090 kernel/hung_task.c:399
kthread+0x7a5/0x910 kernel/kthread.c:464
ret_from_fork+0x47/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted 6.14.0-rc7-syzkaller-00205-g586de92313fc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:32 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:87 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:147 [inline]
RIP: 0010:lock_release+0x62b/0xa20 kernel/locking/lockdep.c:5875
Code: 4c 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 f9 2d 8b 00 48 c7 84 24 90 00 00 00 00 00 00 00 9c 8f 84 24 90 00 00 00 <42> 80 3c 3b 00 74 08 4c 89 f7 e8 06 2d 8b 00 f6 84 24 91 00 00 00
RSP: 0018:ffffc90000117620 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffff92000022ed6 RCX: ffffc90000117603
RDX: 0000000000000004 RSI: ffffffff8baac340 RDI: ffffffff8bfc9680
RBP: ffffc90000117750 R08: ffffffff8fb0c277 R09: 1ffffffff1f6184e
R10: dffffc0000000000 R11: fffffbfff1f6184f R12: 1ffff92000022ed0
R13: 0000000000000246 R14: ffffc900001176b0 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005565bd8ae690 CR3: 000000000e136000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
sta_info_get+0x24a/0x2a0
ieee80211_update_sta_info net/mac80211/ibss.c:987 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1100 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1581 [inline]
ieee80211_ibss_rx_queued_mgmt+0x11af/0x2de0 net/mac80211/ibss.c:1608
ieee80211_iface_process_skb net/mac80211/iface.c:1612 [inline]
ieee80211_iface_work+0x8a8/0xf60 net/mac80211/iface.c:1666
cfg80211_wiphy_work+0x2ec/0x480 net/wireless/core.c:435
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xaba/0x18c0 kernel/workqueue.c:3319
worker_thread+0xa27/0xf70 kernel/workqueue.c:3400
kthread+0x7a5/0x910 kernel/kthread.c:464
ret_from_fork+0x47/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244