==================================================================
BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:71 [inline]
BUG: KASAN: use-after-free in atomic_long_read include/linux/atomic/atomic-instrumented.h:1183 [inline]
BUG: KASAN: use-after-free in __down_read_trylock kernel/locking/rwsem.c:1317 [inline]
BUG: KASAN: use-after-free in down_read_trylock+0x7c/0x300 kernel/locking/rwsem.c:1584
Read of size 8 at addr ffff888134231070 by task kworker/u4:3/232

CPU: 0 PID: 232 Comm: kworker/u4:3 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 print_address_description+0x87/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0x179/0x1c0 mm/kasan/report.c:444
 kasan_check_range+0x293/0x2a0 mm/kasan/generic.c:189
 __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 atomic_long_read include/linux/atomic/atomic-instrumented.h:1183 [inline]
 __down_read_trylock kernel/locking/rwsem.c:1317 [inline]
 down_read_trylock+0x7c/0x300 kernel/locking/rwsem.c:1584
 trylock_super+0x1f/0xf0 fs/super.c:418
 __writeback_inodes_wb+0x101/0x3f0 fs/fs-writeback.c:1967
 wb_writeback+0x3cd/0x9e0 fs/fs-writeback.c:2081
 wb_check_old_data_flush fs/fs-writeback.c:2181 [inline]
 wb_do_writeback fs/fs-writeback.c:2234 [inline]
 wb_workfn+0xb3d/0x1110 fs/fs-writeback.c:2263
 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2313
 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2460
 kthread+0x421/0x510 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>

Allocated by task 2508:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:227 [inline]
 __kmalloc+0x13a/0x270 mm/slub.c:4425
 kmalloc include/linux/slab.h:613 [inline]
 sk_prot_alloc+0xf9/0x330 net/core/sock.c:1843
 sk_alloc+0x38/0x430 net/core/sock.c:1900
 __netlink_create net/netlink/af_netlink.c:647 [inline]
 netlink_create+0x3e9/0x640 net/netlink/af_netlink.c:710
 __sock_create+0x3a6/0x760 net/socket.c:1467
 sock_create net/socket.c:1518 [inline]
 __sys_socket+0x132/0x370 net/socket.c:1560
 __do_sys_socket net/socket.c:1569 [inline]
 __se_sys_socket net/socket.c:1567 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1567
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Last potentially related work creation:
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd3/0xf0 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 __call_rcu kernel/rcu/tree.c:2993 [inline]
 call_rcu+0x133/0x12a0 kernel/rcu/tree.c:3073
 netlink_release+0x12df/0x16f0 net/netlink/af_netlink.c:819
 __sock_release net/socket.c:649 [inline]
 sock_close+0xdf/0x270 net/socket.c:1317
 __fput+0x3fe/0x910 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:308
 task_work_run+0x129/0x190 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0xc60/0x2b60 kernel/exit.c:875
 do_group_exit+0x141/0x310 kernel/exit.c:997
 get_signal+0x7a3/0x1630 kernel/signal.c:2891
 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:865
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:301
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Second to last potentially related work creation:
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd3/0xf0 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 __call_rcu kernel/rcu/tree.c:2993 [inline]
 call_rcu+0x133/0x12a0 kernel/rcu/tree.c:3073
 sk_destruct net/core/sock.c:1982 [inline]
 __sk_free+0x389/0x470 net/core/sock.c:1995
 sk_free+0x51/0x80 net/core/sock.c:2006
 sock_put include/net/sock.h:1899 [inline]
 xsk_release+0x65c/0x730 net/xdp/xsk.c:863
 __sock_release net/socket.c:649 [inline]
 sock_close+0xdf/0x270 net/socket.c:1317
 __fput+0x3fe/0x910 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:308
 task_work_run+0x129/0x190 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xc4/0xe0 kernel/entry/common.c:175
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:301
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

The buggy address belongs to the object at ffff888134231000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 112 bytes inside of
 2048-byte region [ffff888134231000, ffff888134231800)
The buggy address belongs to the page:
page:ffffea0004d08c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888134231000 pfn:0x134230
head:ffffea0004d08c00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 ffffea0004343e08 ffffea00043aee08 ffff888100043200
raw: ffff888134231000 0000000000080007 00000001ffffffff 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 428, ts 146785418246, free_ts 146782991053
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2502
 prep_new_page mm/page_alloc.c:2508 [inline]
 get_page_from_freelist+0x2c14/0x2cf0 mm/page_alloc.c:4291
 __alloc_pages+0x386/0x7b0 mm/page_alloc.c:5569
 allocate_slab mm/slub.c:1930 [inline]
 new_slab+0x92/0x490 mm/slub.c:1993
 ___slab_alloc+0x39e/0x830 mm/slub.c:3026
 __slab_alloc+0x4a/0x90 mm/slub.c:3113
 slab_alloc_node mm/slub.c:3204 [inline]
 slab_alloc mm/slub.c:3246 [inline]
 __kmalloc+0x16d/0x270 mm/slub.c:4421
 kmalloc include/linux/slab.h:613 [inline]
 kzalloc include/linux/slab.h:738 [inline]
 __register_sysctl_table+0xea/0x1240 fs/proc/proc_sysctl.c:1321
 register_net_sysctl+0x21e/0x230 net/sysctl_net.c:169
 __devinet_sysctl_register+0x1d3/0x2a0 net/ipv4/devinet.c:2577
 devinet_sysctl_register+0x16a/0x1e0 net/ipv4/devinet.c:2617
 inetdev_init+0x284/0x4b0 net/ipv4/devinet.c:276
 inetdev_event+0x205/0x1040 net/ipv4/devinet.c:1530
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0x8c/0xf0 kernel/notifier.c:391
 call_netdevice_notifiers_info net/core/dev.c:2005 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2017 [inline]
 call_netdevice_notifiers+0x145/0x1b0 net/core/dev.c:2031
 register_netdevice+0xff1/0x1350 net/core/dev.c:10365
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1370 [inline]
 free_pcp_prepare mm/page_alloc.c:1442 [inline]
 free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3441
 free_unref_page+0xac/0x2c0 mm/page_alloc.c:3521
 free_the_page mm/page_alloc.c:711 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5645
 __free_slab+0xec/0x1d0 mm/slub.c:2018
 free_slab mm/slub.c:2033 [inline]
 discard_slab mm/slub.c:2039 [inline]
 __unfreeze_partials+0x165/0x1a0 mm/slub.c:2525
 put_cpu_partial+0xc4/0x120 mm/slub.c:2605
 __slab_free+0x1c8/0x290 mm/slub.c:3386
 do_slab_free mm/slub.c:3505 [inline]
 ___cache_free+0x109/0x120 mm/slub.c:3524
 qlink_free+0x4d/0x90 mm/kasan/quarantine.c:157
 qlist_free_all+0x44/0xb0 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x15a/0x180 mm/kasan/quarantine.c:283
 __kasan_slab_alloc+0x2f/0xe0 mm/kasan/common.c:443
 kasan_slab_alloc include/linux/kasan.h:217 [inline]
 slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550
 slab_alloc_node mm/slub.c:3238 [inline]
 slab_alloc mm/slub.c:3246 [inline]
 kmem_cache_alloc+0xf5/0x200 mm/slub.c:3251
 kmem_cache_alloc_node include/linux/slab.h:479 [inline]
 __alloc_skb+0xbe/0x550 net/core/skbuff.c:416
 alloc_skb include/linux/skbuff.h:1182 [inline]
 nlmsg_new include/net/netlink.h:953 [inline]
 netlink_ack+0x33c/0xb10 net/netlink/af_netlink.c:2468

Memory state around the buggy address:
 ffff888134230f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888134230f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888134231000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                             ^
 ffff888134231080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888134231100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================