Hello,
syzbot found the following issue on:
HEAD commit: d9b4a0c83a2d Linux 5.15.98
git tree: linux-5.15.y
console output:
https://syzkaller.appspot.com/x/log.txt?x=127c945cc80000
kernel config:
https://syzkaller.appspot.com/x/.config?x=b57cfa804330c3b7
dashboard link:
https://syzkaller.appspot.com/bug?extid=77595558bad304ba6a00
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image:
https://storage.googleapis.com/syzbot-assets/8088989394e3/disk-d9b4a0c8.raw.xz
vmlinux:
https://storage.googleapis.com/syzbot-assets/2651d6753959/vmlinux-d9b4a0c8.xz
kernel image:
https://storage.googleapis.com/syzbot-assets/f3fa3f994f9a/Image-d9b4a0c8.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+775955...@syzkaller.appspotmail.com
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 5.15.98-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Workqueue: phy324 ieee80211_iface_work
Call trace:
dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
dump_stack+0x1c/0x58 lib/dump_stack.c:113
lookup_chain_cache_add kernel/locking/lockdep.c:3734 [inline]
validate_chain kernel/locking/lockdep.c:3755 [inline]
__lock_acquire+0x1b68/0x7620 kernel/locking/lockdep.c:5011
lock_acquire+0x2b8/0x894 kernel/locking/lockdep.c:5622
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0xb0/0x10c kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:363 [inline]
__d_instantiate+0x134/0x6b4 fs/dcache.c:1975
d_instantiate+0x74/0xa0 fs/dcache.c:2010
debugfs_create_dir+0x1f0/0x420 fs/debugfs/inode.c:581
ieee80211_sta_debugfs_add+0x114/0x678 net/mac80211/debugfs_sta.c:1016
sta_info_insert_finish net/mac80211/sta_info.c:683 [inline]
sta_info_insert_rcu+0x15b8/0x1c84 net/mac80211/sta_info.c:731
ieee80211_ibss_finish_sta+0x1e8/0x2d8 net/mac80211/ibss.c:589
ieee80211_ibss_work+0x1f8/0x1210 net/mac80211/ibss.c:1702
ieee80211_iface_work+0x9d0/0xa80 net/mac80211/iface.c:1517
process_one_work+0x82c/0x1478 kernel/workqueue.c:2306
worker_thread+0x910/0x1034 kernel/workqueue.c:2453
kthread+0x37c/0x45c kernel/kthread.c:319
ret_from_fork+0x10/0x20 <unknown>:870
wlan1: send auth to 08:02:11:00:00:00 (try 2/3)
wlan1: authentication with 08:02:11:00:00:00 timed out
wlan1: send auth to 08:02:11:00:00:00 (try 3/3)
wlan1: send auth to 08:02:11:00:00:00 (try 2/3)
wlan1: send auth to 08:02:11:00:00:00 (try 3/3)
wlan1: authentication with 08:02:11:00:00:00 timed out
---
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