==================================================================
BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1667 [inline]
BUG: KASAN: use-after-free in __down_read_trylock kernel/locking/rwsem.c:1275 [inline]
BUG: KASAN: use-after-free in down_read_trylock+0xba/0x1d0 kernel/locking/rwsem.c:1531
Write of size 8 at addr ffff888114631070 by task kworker/u4:1/16844

CPU: 1 PID: 16844 Comm: kworker/u4:1 Not tainted 5.15.76-syzkaller-00628-g92f701cae0bc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: writeback wb_workfn (flush-7:3)
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 print_address_description+0x87/0x3d0 mm/kasan/report.c:256
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x1a6/0x1f0 mm/kasan/report.c:452
 kasan_check_range+0x2aa/0x2e0 mm/kasan/generic.c:189
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic_long_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1667 [inline]
 __down_read_trylock kernel/locking/rwsem.c:1275 [inline]
 down_read_trylock+0xba/0x1d0 kernel/locking/rwsem.c:1531
 trylock_super+0x1f/0xf0 fs/super.c:418
 __writeback_inodes_wb+0x121/0x410 fs/fs-writeback.c:1959
 wb_writeback+0x420/0x9e0 fs/fs-writeback.c:2073
 wb_check_old_data_flush fs/fs-writeback.c:2173 [inline]
 wb_do_writeback+0x995/0xbd0 fs/fs-writeback.c:2226
 wb_workfn+0xf8/0x3e0 fs/fs-writeback.c:2255
 process_one_work+0x6db/0xc00 kernel/workqueue.c:2313
 worker_thread+0xb3e/0x1340 kernel/workqueue.c:2460
 kthread+0x41c/0x500 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>

Allocated by task 18809:
 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+0xdc/0x110 mm/kasan/common.c:512
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 kmem_cache_alloc_trace+0x1e3/0x310 mm/slub.c:3263
 kmalloc include/linux/slab.h:591 [inline]
 f2fs_kmalloc fs/f2fs/f2fs.h:3339 [inline]
 f2fs_kzalloc fs/f2fs/f2fs.h:3345 [inline]
 build_curseg fs/f2fs/segment.c:4522 [inline]
 f2fs_build_segment_manager+0x1adc/0x5fb0 fs/f2fs/segment.c:5320
 f2fs_fill_super+0x67a0/0x8480 fs/f2fs/super.c:4240
 mount_bdev+0x280/0x3b0 fs/super.c:1368
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4520
 legacy_get_tree+0xf0/0x190 fs/fs_context.c:610
 vfs_get_tree+0x88/0x290 fs/super.c:1498
 do_new_mount+0x289/0xad0 fs/namespace.c:2994
 path_mount+0x60b/0x1050 fs/namespace.c:3324
 do_mount fs/namespace.c:3337 [inline]
 __do_sys_mount fs/namespace.c:3545 [inline]
 __se_sys_mount+0x2d2/0x3c0 fs/namespace.c:3522
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3522
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Freed by task 18845:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4c/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373
 kasan_slab_free include/linux/kasan.h:220 [inline]
 slab_free_hook mm/slub.c:1721 [inline]
 slab_free_freelist_hook+0xc9/0x1a0 mm/slub.c:1747
 slab_free mm/slub.c:3515 [inline]
 kfree+0xc8/0x210 mm/slub.c:4575
 destroy_curseg fs/f2fs/segment.c:5395 [inline]
 f2fs_destroy_segment_manager+0xac9/0xec0 fs/f2fs/segment.c:5443
 f2fs_put_super+0x6c2/0xbf0 fs/f2fs/super.c:1606
 generic_shutdown_super+0x14f/0x2d0 fs/super.c:465
 kill_block_super+0x80/0xe0 fs/super.c:1395
 kill_f2fs_super+0x2f3/0x3c0 fs/f2fs/super.c:4552
 deactivate_locked_super+0xb0/0x100 fs/super.c:335
 deactivate_super+0xa5/0xd0 fs/super.c:366
 cleanup_mnt+0x45f/0x510 fs/namespace.c:1143
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1150
 task_work_run+0x147/0x1b0 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0x67e/0x24d0 kernel/exit.c:828
 do_group_exit+0x13a/0x300 kernel/exit.c:925
 get_signal+0x77e/0x1600 kernel/signal.c:2890
 arch_do_signal_or_restart+0x9f/0x670 arch/x86/kernel/signal.c:865
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop+0xd4/0x110 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0x3b/0x40 kernel/entry/common.c:207
 irqentry_exit_to_user_mode+0x9/0x20 kernel/entry/common.c:313
 irqentry_exit+0x12/0x40 kernel/entry/common.c:404
 exc_page_fault+0x75/0x1a0 arch/x86/mm/fault.c:1620
 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:568

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
 insert_work+0x56/0x340 kernel/workqueue.c:1369
 __queue_work+0x934/0xcf0 kernel/workqueue.c:1535
 queue_work_on+0xf2/0x170 kernel/workqueue.c:1562
 queue_work include/linux/workqueue.h:507 [inline]
 schedule_work include/linux/workqueue.h:568 [inline]
 destroy_super_rcu+0xea/0x100 fs/super.c:172
 rcu_do_batch+0x55b/0xbe0 kernel/rcu/tree.c:2509
 rcu_core+0x506/0x1000 kernel/rcu/tree.c:2749
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2762
 __do_softirq+0x27e/0x5dc kernel/softirq.c:565

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+0x140/0x1400 kernel/rcu/tree.c:3073
 __put_super+0x277/0x2e0 fs/super.c:299
 put_super fs/super.c:313 [inline]
 deactivate_locked_super+0xe4/0x100 fs/super.c:346
 deactivate_super+0xa5/0xd0 fs/super.c:366
 cleanup_mnt+0x45f/0x510 fs/namespace.c:1143
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1150
 task_work_run+0x147/0x1b0 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xfd/0x110 kernel/entry/common.c:175
 exit_to_user_mode_prepare kernel/entry/common.c:207 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
 syscall_exit_to_user_mode+0x79/0xc0 kernel/entry/common.c:300
 do_syscall_64+0x50/0xd0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

The buggy address belongs to the object at ffff888114631000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 112 bytes inside of
 2048-byte region [ffff888114631000, ffff888114631800)
The buggy address belongs to the page:
page:ffffea0004518c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x114630
head:ffffea0004518c00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 ffffea0004419e00 0000000300000003 ffff888100043200
raw: 0000000000000000 0000000000080008 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 48, ts 264318509084, free_ts 264174001632
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1ab/0x1b0 mm/page_alloc.c:2495
 prep_new_page mm/page_alloc.c:2501 [inline]
 get_page_from_freelist+0x38b/0x400 mm/page_alloc.c:4281
 __alloc_pages+0x3a8/0x7c0 mm/page_alloc.c:5548
 allocate_slab+0x62/0x580 mm/slub.c:1928
 new_slab mm/slub.c:1991 [inline]
 ___slab_alloc+0x2e2/0x6f0 mm/slub.c:3024
 __slab_alloc+0x4a/0x90 mm/slub.c:3111
 slab_alloc_node mm/slub.c:3202 [inline]
 slab_alloc mm/slub.c:3244 [inline]
 __kmalloc_track_caller+0x25a/0x350 mm/slub.c:4941
 kmalloc_reserve net/core/skbuff.c:357 [inline]
 __alloc_skb+0x10e/0x550 net/core/skbuff.c:428
 alloc_skb include/linux/skbuff.h:1182 [inline]
 alloc_skb_with_frags+0xae/0x6b0 net/core/skbuff.c:6136
 sock_alloc_send_pskb+0x930/0xa70 net/core/sock.c:2503
 sock_alloc_send_skb+0x32/0x40 net/core/sock.c:2520
 mld_newpack+0x1d7/0xa00 net/ipv6/mcast.c:1748
 add_grhead net/ipv6/mcast.c:1851 [inline]
 add_grec+0xf56/0x13d0 net/ipv6/mcast.c:1989
 mld_send_cr net/ipv6/mcast.c:2115 [inline]
 mld_ifc_work+0x799/0xc30 net/ipv6/mcast.c:2653
 process_one_work+0x6db/0xc00 kernel/workqueue.c:2313
 worker_thread+0xb3e/0x1340 kernel/workqueue.c:2460
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1364 [inline]
 free_pcp_prepare+0x448/0x450 mm/page_alloc.c:1435
 free_unref_page_prepare mm/page_alloc.c:3433 [inline]
 free_unref_page+0x9c/0x370 mm/page_alloc.c:3513
 free_the_page mm/page_alloc.c:706 [inline]
 __free_pages+0xd8/0x100 mm/page_alloc.c:5621
 __free_slab+0xf0/0x1d0 mm/slub.c:2016
 free_slab mm/slub.c:2031 [inline]
 discard_slab mm/slub.c:2037 [inline]
 __unfreeze_partials+0x17d/0x1b0 mm/slub.c:2523
 put_cpu_partial+0xc4/0x120 mm/slub.c:2603
 __slab_free+0x1c0/0x2f0 mm/slub.c:3384
 do_slab_free mm/slub.c:3503 [inline]
 ___cache_free+0x112/0x130 mm/slub.c:3522
 qlink_free+0x4d/0x90 mm/kasan/quarantine.c:157
 qlist_free_all+0x4c/0xc0 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:244 [inline]
 slab_post_alloc_hook mm/slab.h:550 [inline]
 slab_alloc_node mm/slub.c:3236 [inline]
 slab_alloc mm/slub.c:3244 [inline]
 kmem_cache_alloc+0x189/0x2f0 mm/slub.c:3249
 kmem_cache_alloc_node include/linux/slab.h:462 [inline]
 __alloc_skb+0xbc/0x550 net/core/skbuff.c:416
 alloc_skb include/linux/skbuff.h:1182 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1193 [inline]
 netlink_sendmsg+0x6f6/0xd00 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 __sys_sendto+0x560/0x720 net/socket.c:2039

Memory state around the buggy address:
 ffff888114630f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888114630f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888114631000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                             ^
 ffff888114631080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888114631100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================