SET target dimension over the limit!
==================================================================
BUG: KASAN: slab-use-after-free in lockdep_register_key+0x253/0x3f0 kernel/locking/lockdep.c:1225
Read of size 8 at addr ffff88807e03fa98 by task syz-executor.0/12738

CPU: 0 PID: 12738 Comm: syz-executor.0 Not tainted 6.9.0-rc5-syzkaller-01461-g496bc5861c73 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 lockdep_register_key+0x253/0x3f0 kernel/locking/lockdep.c:1225
 htab_map_alloc+0x9b/0xe60 kernel/bpf/hashtab.c:506
 map_create+0x90c/0x1200 kernel/bpf/syscall.c:1333
 __sys_bpf+0x6d1/0x810 kernel/bpf/syscall.c:5659
 __do_sys_bpf kernel/bpf/syscall.c:5784 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5782 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5782
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3c1907dea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3c19e940c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f3c191abf80 RCX: 00007f3c1907dea9
RDX: 0000000000000048 RSI: 0000000020000080 RDI: 0000000000000000
RBP: 00007f3c190ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000004d R14: 00007f3c191abf80 R15: 00007ffd7ce2d618
 </TASK>

Allocated by task 2438:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slub.c:3966 [inline]
 __kmalloc_node_track_caller+0x24e/0x4e0 mm/slub.c:3986
 kmalloc_reserve+0x111/0x2a0 net/core/skbuff.c:597
 pskb_expand_head+0x1f0/0x13d0 net/core/skbuff.c:2198
 __skb_cow include/linux/skbuff.h:3598 [inline]
 skb_cow_head include/linux/skbuff.h:3632 [inline]
 batadv_skb_head_push+0x164/0x200 net/batman-adv/soft-interface.c:72
 batadv_send_skb_packet+0xee/0x670 net/batman-adv/send.c:86
 batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:392 [inline]
 batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:420 [inline]
 batadv_iv_send_outstanding_bat_ogm_packet+0x673/0x810 net/batman-adv/bat_iv_ogm.c:1700
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Freed by task 2438:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object+0xa6/0xe0 mm/kasan/common.c:240
 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2106 [inline]
 slab_free mm/slub.c:4280 [inline]
 kfree+0x153/0x3a0 mm/slub.c:4390
 skb_kfree_head net/core/skbuff.c:1033 [inline]
 skb_free_head net/core/skbuff.c:1045 [inline]
 skb_release_data+0x676/0x880 net/core/skbuff.c:1072
 skb_release_all net/core/skbuff.c:1137 [inline]
 __kfree_skb net/core/skbuff.c:1151 [inline]
 kfree_skb_reason+0x1a3/0x3b0 net/core/skbuff.c:1187
 packet_rcv+0x163/0x13e0 net/packet/af_packet.c:2230
 __netif_receive_skb_one_core net/core/dev.c:5610 [inline]
 __netif_receive_skb+0x2e0/0x650 net/core/dev.c:5724
 process_backlog+0x391/0x7d0 net/core/dev.c:6053
 __napi_poll+0xcb/0x490 net/core/dev.c:6707
 napi_poll net/core/dev.c:6776 [inline]
 net_rx_action+0x7bb/0x10a0 net/core/dev.c:6892
 __do_softirq+0x2c6/0x980 kernel/softirq.c:554

The buggy address belongs to the object at ffff88807e03f800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 664 bytes inside of
 freed 1024-byte region [ffff88807e03f800, ffff88807e03fc00)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7e038
head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff80000000840(slab|head|node=0|zone=1|lastcpupid=0xfff)
page_type: 0xffffffff()
raw: 00fff80000000840 ffff888015041dc0 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
head: 00fff80000000840 ffff888015041dc0 0000000000000000 dead000000000001
head: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
head: 00fff80000000003 ffffea0001f80e01 dead000000000122 00000000ffffffff
head: 0000000800000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 5113, tgid 207097567 (syz-executor.4), ts 5113, free_ts 77492216519
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1534
 prep_new_page mm/page_alloc.c:1541 [inline]
 get_page_from_freelist+0x3410/0x35b0 mm/page_alloc.c:3317
 __alloc_pages+0x256/0x6c0 mm/page_alloc.c:4575
 __alloc_pages_node include/linux/gfp.h:238 [inline]
 alloc_pages_node include/linux/gfp.h:261 [inline]
 alloc_slab_page+0x5f/0x160 mm/slub.c:2175
 allocate_slab mm/slub.c:2338 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2391
 ___slab_alloc+0xc73/0x1260 mm/slub.c:3525
 __slab_alloc mm/slub.c:3610 [inline]
 __slab_alloc_node mm/slub.c:3663 [inline]
 slab_alloc_node mm/slub.c:3835 [inline]
 __do_kmalloc_node mm/slub.c:3965 [inline]
 __kmalloc_node+0x2db/0x4e0 mm/slub.c:3973
 kmalloc_node include/linux/slab.h:648 [inline]
 kzalloc_node include/linux/slab.h:760 [inline]
 qdisc_alloc+0x9c/0xa90 net/sched/sch_generic.c:941
 qdisc_create_dflt+0x62/0x4b0 net/sched/sch_generic.c:1002
 attach_one_default_qdisc net/sched/sch_generic.c:1168 [inline]
 netdev_for_each_tx_queue include/linux/netdevice.h:2503 [inline]
 attach_default_qdiscs net/sched/sch_generic.c:1186 [inline]
 dev_activate+0x3c0/0x1240 net/sched/sch_generic.c:1245
 __dev_open+0x352/0x450 net/core/dev.c:1467
 __dev_change_flags+0x1e2/0x6f0 net/core/dev.c:8762
 dev_change_flags+0x8b/0x1a0 net/core/dev.c:8834
 do_setlink+0xccd/0x41f0 net/core/rtnetlink.c:2884
 __rtnl_newlink net/core/rtnetlink.c:3680 [inline]
 rtnl_newlink+0x180b/0x20a0 net/core/rtnetlink.c:3727
 rtnetlink_rcv_msg+0x89b/0x10d0 net/core/rtnetlink.c:6594
page last free pid 5187 tgid 5184 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1141 [inline]
 free_unref_page_prepare+0x986/0xab0 mm/page_alloc.c:2347
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2487
 __slab_free+0x31b/0x3d0 mm/slub.c:4192
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x5e/0xc0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:378
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slub.c:3966 [inline]
 __kmalloc+0x233/0x4a0 mm/slub.c:3979
 kmalloc include/linux/slab.h:632 [inline]
 tomoyo_realpath_from_path+0xcf/0x5e0 security/tomoyo/realpath.c:251
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_number_perm+0x23a/0x880 security/tomoyo/file.c:723
 security_file_ioctl+0x75/0xb0 security/security.c:2764
 __do_sys_ioctl fs/ioctl.c:898 [inline]
 __se_sys_ioctl+0x47/0x170 fs/ioctl.c:890
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88807e03f980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88807e03fa00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88807e03fa80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                            ^
 ffff88807e03fb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88807e03fb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================