wlan1: send auth to 08:02:11:00:00:00 (try 2/3) wlan1: authentication with 08:02:11:00:00:00 timed out ================================================================== BUG: KASAN: slab-use-after-free in __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] BUG: KASAN: slab-use-after-free in _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 Read of size 1 at addr ffff888071f20538 by task kworker/u8:3/49 CPU: 0 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted 6.16.0-syzkaller-gd9104cec3e8f #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: events_unbound cfg80211_wiphy_work Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xca/0x240 mm/kasan/report.c:482 kasan_report+0x118/0x150 mm/kasan/report.c:595 __kasan_check_byte+0x2a/0x40 mm/kasan/common.c:557 kasan_check_byte include/linux/kasan.h:399 [inline] lock_acquire+0x8d/0x360 kernel/locking/lockdep.c:5842 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] lockref_get+0x15/0x60 lib/lockref.c:50 dget include/linux/dcache.h:347 [inline] __simple_recursive_removal+0x33/0x510 fs/libfs.c:609 debugfs_remove+0x5b/0x70 fs/debugfs/inode.c:790 ieee80211_sta_debugfs_remove+0x40/0x70 net/mac80211/debugfs_sta.c:1279 __sta_info_destroy_part2+0x352/0x450 net/mac80211/sta_info.c:1550 __sta_info_destroy net/mac80211/sta_info.c:1566 [inline] sta_info_destroy_addr+0xf5/0x140 net/mac80211/sta_info.c:1578 ieee80211_destroy_auth_data+0x12d/0x260 net/mac80211/mlme.c:4673 ieee80211_sta_work+0x11cf/0x3600 net/mac80211/mlme.c:8403 cfg80211_wiphy_work+0x2df/0x460 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Allocated by task 10: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4148 [inline] slab_alloc_node mm/slub.c:4197 [inline] kmem_cache_alloc_lru_noprof+0x1c6/0x3d0 mm/slub.c:4216 __d_alloc+0x36/0x7a0 fs/dcache.c:1690 d_alloc_parallel+0xe5/0x15e0 fs/dcache.c:2549 __lookup_slow+0x116/0x3d0 fs/namei.c:1793 simple_start_creating+0xfd/0x1e0 fs/libfs.c:2303 start_creating+0x10f/0x180 fs/debugfs/inode.c:387 debugfs_create_dir+0x28/0x420 fs/debugfs/inode.c:571 ieee80211_sta_debugfs_add+0x12c/0x850 net/mac80211/debugfs_sta.c:1254 sta_info_insert_finish net/mac80211/sta_info.c:941 [inline] sta_info_insert_rcu+0xfac/0x1940 net/mac80211/sta_info.c:1009 sta_info_insert+0x16/0xc0 net/mac80211/sta_info.c:1014 ieee80211_prep_connection+0xfce/0x13f0 net/mac80211/mlme.c:9002 ieee80211_mgd_auth+0xee3/0x1770 net/mac80211/mlme.c:9267 rdev_auth net/wireless/rdev-ops.h:486 [inline] cfg80211_mlme_auth+0x62f/0x9c0 net/wireless/mlme.c:291 cfg80211_conn_do_work+0x501/0xd10 net/wireless/sme.c:182 cfg80211_conn_work+0x2c0/0x440 net/wireless/sme.c:272 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Freed by task 23: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2381 [inline] slab_free mm/slub.c:4643 [inline] kmem_cache_free+0x18f/0x400 mm/slub.c:4745 rcu_do_batch kernel/rcu/tree.c:2576 [inline] rcu_core+0xca8/0x1710 kernel/rcu/tree.c:2832 handle_softirqs+0x283/0x870 kernel/softirq.c:579 run_ksoftirqd+0x9b/0x100 kernel/softirq.c:968 smpboot_thread_fn+0x53f/0xa60 kernel/smpboot.c:160 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Last potentially related work creation: kasan_save_stack+0x3e/0x60 mm/kasan/common.c:47 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:548 __call_rcu_common kernel/rcu/tree.c:3094 [inline] call_rcu+0x157/0x9c0 kernel/rcu/tree.c:3214 __dentry_kill+0x4d2/0x660 fs/dcache.c:688 dput+0x19f/0x2b0 fs/dcache.c:911 find_next_child+0x1e5/0x250 fs/libfs.c:600 __simple_recursive_removal+0x10b/0x510 fs/libfs.c:617 debugfs_remove+0x5b/0x70 fs/debugfs/inode.c:790 ieee80211_debugfs_remove_netdev net/mac80211/debugfs_netdev.c:1021 [inline] ieee80211_debugfs_recreate_netdev+0xbf/0x1460 net/mac80211/debugfs_netdev.c:1034 drv_remove_interface+0x1fa/0x590 net/mac80211/driver-ops.c:125 _ieee80211_change_mac net/mac80211/iface.c:277 [inline] ieee80211_change_mac+0x912/0x12c0 net/mac80211/iface.c:309 netif_set_mac_address+0x2fc/0x4c0 net/core/dev.c:9776 dev_set_mac_address_user+0x137/0x270 net/core/dev_api.c:95 dev_ioctl+0x7b4/0x1150 net/core/dev_ioctl.c:824 sock_do_ioctl+0x22c/0x300 net/socket.c:1252 sock_ioctl+0x576/0x790 net/socket.c:1359 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888071f20468 which belongs to the cache dentry of size 312 The buggy address is located 208 bytes inside of freed 312-byte region [ffff888071f20468, ffff888071f205a0) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x71f20 head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff8880734de801 anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88801ba94780 0000000000000000 dead000000000001 raw: 0000000000000000 0000000000150015 00000000f5000000 ffff8880734de801 head: 00fff00000000040 ffff88801ba94780 0000000000000000 dead000000000001 head: 0000000000000000 0000000000150015 00000000f5000000 ffff8880734de801 head: 00fff00000000001 ffffea0001c7c801 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Reclaimable, gfp_mask 0xd20d0(__GFP_RECLAIMABLE|__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5942, tgid 5942 (syz-executor), ts 101530829983, free_ts 30889795261 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704 prep_new_page mm/page_alloc.c:1712 [inline] get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419 alloc_slab_page mm/slub.c:2451 [inline] allocate_slab+0x8a/0x3b0 mm/slub.c:2619 new_slab mm/slub.c:2673 [inline] ___slab_alloc+0xbfc/0x1480 mm/slub.c:3859 __slab_alloc mm/slub.c:3949 [inline] __slab_alloc_node mm/slub.c:4024 [inline] slab_alloc_node mm/slub.c:4185 [inline] kmem_cache_alloc_lru_noprof+0x288/0x3d0 mm/slub.c:4216 __d_alloc+0x36/0x7a0 fs/dcache.c:1690 d_alloc_pseudo+0x21/0xc0 fs/dcache.c:1821 alloc_path_pseudo fs/file_table.c:363 [inline] alloc_file_pseudo+0xcc/0x210 fs/file_table.c:379 sock_alloc_file+0xb8/0x2e0 net/socket.c:470 sock_map_fd net/socket.c:500 [inline] __sys_socket+0x13d/0x1b0 net/socket.c:1740 __do_sys_socket net/socket.c:1745 [inline] __se_sys_socket net/socket.c:1743 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1743 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 1 tgid 1 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1248 [inline] __free_frozen_pages+0xc71/0xe70 mm/page_alloc.c:2706 __free_pages mm/page_alloc.c:5071 [inline] free_contig_range+0x1bd/0x4a0 mm/page_alloc.c:6927 destroy_args+0x64/0x4a0 mm/debug_vm_pgtable.c:1009 debug_vm_pgtable+0x3a7/0x3e0 mm/debug_vm_pgtable.c:1389 do_one_initcall+0x233/0x820 init/main.c:1269 do_initcall_level+0x104/0x190 init/main.c:1331 do_initcalls+0x59/0xa0 init/main.c:1347 kernel_init_freeable+0x334/0x4a0 init/main.c:1579 kernel_init+0x1d/0x1d0 init/main.c:1469 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Memory state around the buggy address: ffff888071f20400: fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb ffff888071f20480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888071f20500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888071f20580: fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb ffff888071f20600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================