BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 0 PID: 7004 Comm: kworker/u4:7 Not tainted 5.15.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy248 ieee80211_iface_work Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 add_chain_cache kernel/locking/lockdep.c:3637 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:3736 [inline] validate_chain kernel/locking/lockdep.c:3757 [inline] __lock_acquire.cold+0x372/0x3ab kernel/locking/lockdep.c:5015 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 local_lock_acquire include/linux/local_lock_internal.h:29 [inline] ___slab_alloc+0x157/0x1050 mm/slub.c:2925 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3088 slab_alloc_node mm/slub.c:3179 [inline] slab_alloc mm/slub.c:3221 [inline] kmem_cache_alloc+0x365/0x390 mm/slub.c:3226 __d_alloc+0x2a/0x950 fs/dcache.c:1744 d_alloc+0x4a/0x230 fs/dcache.c:1823 d_alloc_parallel+0xe2/0x19f0 fs/dcache.c:2575 __lookup_slow+0x193/0x480 fs/namei.c:1642 lookup_one_len+0x16a/0x1a0 fs/namei.c:2686 start_creating.part.0+0x13a/0x290 fs/debugfs/inode.c:352 start_creating fs/debugfs/inode.c:325 [inline] __debugfs_create_file+0xa9/0x570 fs/debugfs/inode.c:397 ieee80211_sta_debugfs_add+0x1d4/0x980 net/mac80211/debugfs_sta.c:1020 sta_info_insert_finish net/mac80211/sta_info.c:683 [inline] sta_info_insert_rcu+0x12f1/0x2ce0 net/mac80211/sta_info.c:731 ieee80211_ibss_finish_sta+0x212/0x390 net/mac80211/ibss.c:585 ieee80211_ibss_add_sta+0x407/0x740 net/mac80211/ibss.c:643 ieee80211_update_sta_info net/mac80211/ibss.c:1027 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1117 [inline] ieee80211_rx_mgmt_probe_beacon+0x127d/0x17c0 net/mac80211/ibss.c:1608 ieee80211_ibss_rx_queued_mgmt+0xd34/0x1610 net/mac80211/ibss.c:1635 ieee80211_iface_process_skb net/mac80211/iface.c:1439 [inline] ieee80211_iface_work+0xa65/0xd00 net/mac80211/iface.c:1493 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295