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BUG: KASAN: slab-use-after-free in lockdep_register_key+0x253/0x3f0 kernel/locking/lockdep.c:1225
Read of size 8 at addr ffff88807a745298 by task syz-executor.3/9339

CPU: 0 PID: 9339 Comm: syz-executor.3 Not tainted 6.9.0-rc5-syzkaller-01459-gc2e6a872bde9 #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: 0033:0x7fbf1547dea9
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:00007fbf161760c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fbf155abf80 RCX: 00007fbf1547dea9
RDX: 0000000000000048 RSI: 00000000200009c0 RDI: 0000000000000000
RBP: 00007fbf154ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fbf155abf80 R15: 00007fffb65ce938
 </TASK>

Allocated by task 8907:
 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]
 kmalloc_trace+0x1db/0x360 mm/slub.c:3997
 kmalloc include/linux/slab.h:628 [inline]
 kzalloc include/linux/slab.h:749 [inline]
 copy_verifier_state+0xab8/0x1020 kernel/bpf/verifier.c:1453
 is_state_visited kernel/bpf/verifier.c:17621 [inline]
 do_check+0x4338/0x10930 kernel/bpf/verifier.c:17783
 do_check_common+0x14bd/0x1dd0 kernel/bpf/verifier.c:20806
 do_check_main kernel/bpf/verifier.c:20897 [inline]
 bpf_check+0x139c0/0x18a90 kernel/bpf/verifier.c:21567
 bpf_prog_load+0x1667/0x20f0 kernel/bpf/syscall.c:2908
 __sys_bpf+0x4ee/0x810 kernel/bpf/syscall.c:5677
 __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

Freed by task 8907:
 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
 free_func_state kernel/bpf/verifier.c:1376 [inline]
 free_verifier_state+0xde/0x240 kernel/bpf/verifier.c:1392
 free_states kernel/bpf/verifier.c:20673 [inline]
 do_check_common+0x16e6/0x1dd0 kernel/bpf/verifier.c:20818
 do_check_main kernel/bpf/verifier.c:20897 [inline]
 bpf_check+0x139c0/0x18a90 kernel/bpf/verifier.c:21567
 bpf_prog_load+0x1667/0x20f0 kernel/bpf/syscall.c:2908
 __sys_bpf+0x4ee/0x810 kernel/bpf/syscall.c:5677
 __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

The buggy address belongs to the object at ffff88807a745000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 664 bytes inside of
 freed 2048-byte region [ffff88807a745000, ffff88807a745800)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7a740
head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff80000000840(slab|head|node=0|zone=1|lastcpupid=0xfff)
page_type: 0xffffffff()
raw: 00fff80000000840 ffff888015042000 ffffea000055dc00 dead000000000002
raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000
head: 00fff80000000840 ffff888015042000 ffffea000055dc00 dead000000000002
head: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000
head: 00fff80000000003 ffffea0001e9d001 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 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5093, tgid -1299481043 (syz-executor.2), ts 5093, free_ts 63120857800
 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_track_caller+0x2d6/0x4e0 mm/slub.c:3986
 kmalloc_reserve+0x111/0x2a0 net/core/skbuff.c:597
 pskb_expand_head+0x1f0/0x13d0 net/core/skbuff.c:2198
 netlink_trim+0x183/0x220 net/netlink/af_netlink.c:1317
 netlink_broadcast_filtered+0x76/0x1290 net/netlink/af_netlink.c:1523
 nlmsg_multicast_filtered include/net/netlink.h:1125 [inline]
 nlmsg_multicast include/net/netlink.h:1144 [inline]
 nlmsg_notify+0xfb/0x1c0 net/netlink/af_netlink.c:2607
 __dev_notify_flags+0xf7/0x400 net/core/dev.c:8797
 dev_change_flags+0xf0/0x1a0 net/core/dev.c:8839
 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
page last free pid 5149 tgid 5149 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_slab_alloc+0x23/0x80 mm/kasan/common.c:322
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3798 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 kmem_cache_alloc_node+0x194/0x380 mm/slub.c:3888
 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:656
 alloc_skb include/linux/skbuff.h:1308 [inline]
 nlmsg_new include/net/netlink.h:1015 [inline]
 rtmsg_ifinfo_build_skb+0x89/0x290 net/core/rtnetlink.c:4048
 rtmsg_ifinfo_event net/core/rtnetlink.c:4091 [inline]
 rtmsg_ifinfo+0x91/0x1b0 net/core/rtnetlink.c:4100
 netdev_state_change+0x139/0x1a0 net/core/dev.c:1362
 linkwatch_do_dev+0x112/0x170 net/core/link_watch.c:177
 __linkwatch_run_queue+0x44f/0x6c0 net/core/link_watch.c:234
 linkwatch_event+0x4c/0x60 net/core/link_watch.c:277
 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

Memory state around the buggy address:
 ffff88807a745180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88807a745200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88807a745280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                            ^
 ffff88807a745300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88807a745380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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