=============================
WARNING: suspicious RCU usage
6.1.114-syzkaller #0 Not tainted
-----------------------------
net/mac80211/sta_info.c:361 suspicious rcu_dereference_protected() usage!

other info that might help us debug this:


rcu_scheduler_active = 2, debug_locks = 1
3 locks held by syz.4.164/4803:
 #0: ffff800017ff4448 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74
 #1: ffff0000f29d07c8 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5639 [inline]
 #1: ffff0000f29d07c8 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: cfg80211_wext_siwessid net/wireless/wext-compat.c:1489 [inline]
 #1: ffff0000f29d07c8 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: __cfg80211_wext_siwessid+0x7c/0x140 net/wireless/wext-compat.c:1606
 #2: ffff0000f2948d40 (&wdev->mtx){+.+.}-{3:3}, at: wdev_lock net/wireless/core.h:231 [inline]
 #2: ffff0000f2948d40 (&wdev->mtx){+.+.}-{3:3}, at: cfg80211_ibss_wext_siwessid+0xf8/0x2e0 net/wireless/ibss.c:409

stack backtrace:
CPU: 1 PID: 4803 Comm: syz.4.164 Not tainted 6.1.114-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __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
 lockdep_rcu_suspicious+0x260/0x464 kernel/locking/lockdep.c:6608
 sta_remove_link+0x38c/0x474 net/mac80211/sta_info.c:360
 sta_info_free+0x68/0x2ec net/mac80211/sta_info.c:405
 ieee80211_ibss_disconnect+0x2b0/0x5fc net/mac80211/ibss.c:704
 ieee80211_ibss_leave+0x30/0x108 net/mac80211/ibss.c:1868
 ieee80211_leave_ibss+0x20/0x30 net/mac80211/cfg.c:2820
 rdev_leave_ibss net/wireless/rdev-ops.h:561 [inline]
 __cfg80211_leave_ibss+0x1e0/0x518 net/wireless/ibss.c:211
 cfg80211_ibss_wext_siwessid+0x12c/0x2e0 net/wireless/ibss.c:412
 cfg80211_wext_siwessid net/wireless/wext-compat.c:1492 [inline]
 __cfg80211_wext_siwessid+0xe4/0x140 net/wireless/wext-compat.c:1606
 ioctl_standard_iw_point+0x7f0/0xdc4 net/wireless/wext-core.c:848
 ioctl_standard_call+0xcc/0x264 net/wireless/wext-core.c:1033
 wext_ioctl_dispatch+0x16c/0x3ec net/wireless/wext-core.c:997
 wext_handle_ioctl+0x1f8/0x3f4 net/wireless/wext-core.c:1058
 sock_ioctl+0x140/0x858 net/socket.c:1255
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585