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BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: use-after-free in atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline]
BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline]
BUG: KASAN: use-after-free in __down_read_trylock+0xb6/0x260 kernel/locking/rwsem.c:1404
Write of size 8 at addr ffff888117d1f070 by task kworker/u4:0/23249

CPU: 1 PID: 23249 Comm: kworker/u4:0 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Workqueue: writeback wb_workfn (flush-7:3)
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118
 print_address_description+0x81/0x3c0 mm/kasan/report.c:233
 __kasan_report mm/kasan/report.c:419 [inline]
 kasan_report+0x1a4/0x1f0 mm/kasan/report.c:436
 check_region_inline mm/kasan/generic.c:135 [inline]
 kasan_check_range+0x2aa/0x2e0 mm/kasan/generic.c:186
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline]
 atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline]
 __down_read_trylock+0xb6/0x260 kernel/locking/rwsem.c:1404
 down_read_trylock+0x9/0x10 kernel/locking/rwsem.c:1573
 trylock_super+0x1f/0xf0 fs/super.c:418
 __writeback_inodes_wb fs/fs-writeback.c:1792 [inline]
 wb_writeback+0x4da/0xc20 fs/fs-writeback.c:1907
 wb_check_background_flush fs/fs-writeback.c:1975 [inline]
 wb_do_writeback+0xa3d/0xbd0 fs/fs-writeback.c:2063
 wb_workfn+0xf8/0x3f0 fs/fs-writeback.c:2091
 process_one_work+0x726/0xc10 kernel/workqueue.c:2296
 worker_thread+0xb27/0x1550 kernel/workqueue.c:2442
 kthread+0x349/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299

Allocated by task 15551:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:428 [inline]
 ____kasan_kmalloc+0xdc/0x110 mm/kasan/common.c:507
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:516
 kasan_kmalloc include/linux/kasan.h:269 [inline]
 kmem_cache_alloc_trace+0x1dd/0x330 mm/slub.c:2983
 kmalloc include/linux/slab.h:552 [inline]
 kzalloc include/linux/slab.h:664 [inline]
 alloc_super+0x5d/0x770 fs/super.c:203
 sget+0x1fd/0x4e0 fs/super.c:614
 mount_bdev+0xe5/0x370 fs/super.c:1393
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4336
 legacy_get_tree+0xf0/0x190 fs/fs_context.c:592
 vfs_get_tree+0x88/0x290 fs/super.c:1550
 do_new_mount+0x289/0xad0 fs/namespace.c:2899
 path_mount+0x58d/0xce0 fs/namespace.c:3229
 do_mount fs/namespace.c:3242 [inline]
 __do_sys_mount fs/namespace.c:3450 [inline]
 __se_sys_mount+0x2d2/0x3c0 fs/namespace.c:3427
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3427
 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6

Freed by task 28661:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4c/0x80 mm/kasan/common.c:46
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:357
 ____kasan_slab_free+0x121/0x160 mm/kasan/common.c:360
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:368
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:1604 [inline]
 slab_free_freelist_hook+0xcc/0x1a0 mm/slub.c:1630
 slab_free mm/slub.c:3212 [inline]
 kfree+0xc3/0x290 mm/slub.c:4200
 destroy_super_work+0x45/0x50 fs/super.c:165
 process_one_work+0x726/0xc10 kernel/workqueue.c:2296
 worker_thread+0xb27/0x1550 kernel/workqueue.c:2442
 kthread+0x349/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299

Last potentially related work creation:
 kasan_save_stack+0x36/0x60 mm/kasan/common.c:38
 kasan_record_aux_stack+0xca/0xf0 mm/kasan/generic.c:345
 insert_work+0x56/0x330 kernel/workqueue.c:1348
 __queue_work+0x971/0xd30 kernel/workqueue.c:1514
 queue_work_on+0xf2/0x150 kernel/workqueue.c:1541
 queue_work include/linux/workqueue.h:513 [inline]
 schedule_work include/linux/workqueue.h:574 [inline]
 destroy_super_rcu+0xea/0x100 fs/super.c:172
 rcu_do_batch+0x59e/0xc40 kernel/rcu/tree.c:2485
 rcu_core+0x59b/0xe30 kernel/rcu/tree.c:2726
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2739
 __do_softirq+0x27e/0x596 kernel/softirq.c:305

Second to last potentially related work creation:
 kasan_save_stack+0x36/0x60 mm/kasan/common.c:38
 kasan_record_aux_stack+0xca/0xf0 mm/kasan/generic.c:345
 __call_rcu kernel/rcu/tree.c:2967 [inline]
 call_rcu+0x140/0x1300 kernel/rcu/tree.c:3041
 __put_super+0x24c/0x2a0 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:1118
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125
 task_work_run+0x147/0x1b0 kernel/task_work.c:154
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_user_mode_loop+0xc8/0xe0 kernel/entry/common.c:164
 exit_to_user_mode_prepare kernel/entry/common.c:191 [inline]
 syscall_exit_to_user_mode+0x77/0xa0 kernel/entry/common.c:266
 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xc6

The buggy address belongs to the object at ffff888117d1f000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 112 bytes inside of
 2048-byte region [ffff888117d1f000, ffff888117d1f800)
The buggy address belongs to the page:
page:ffffea00045f4600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x117d18
head:ffffea00045f4600 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x8000000000010200(slab|head)
raw: 8000000000010200 ffffea00040a6e00 0000000200000002 ffff888100042d80
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 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 374, ts 270648702407, free_ts 270646577991
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2386 [inline]
 prep_new_page mm/page_alloc.c:2392 [inline]
 get_page_from_freelist+0x755/0x810 mm/page_alloc.c:4073
 __alloc_pages_nodemask+0x3b6/0x890 mm/page_alloc.c:5160
 alloc_slab_page mm/slub.c:1815 [inline]
 allocate_slab+0x78/0x540 mm/slub.c:1817
 new_slab mm/slub.c:1878 [inline]
 new_slab_objects mm/slub.c:2636 [inline]
 ___slab_alloc+0x131/0x2e0 mm/slub.c:2800
 __slab_alloc+0x63/0xa0 mm/slub.c:2840
 slab_alloc_node mm/slub.c:2922 [inline]
 slab_alloc mm/slub.c:2964 [inline]
 __kmalloc+0x24f/0x360 mm/slub.c:4038
 __kmalloc_node include/linux/slab.h:418 [inline]
 kmalloc_node include/linux/slab.h:575 [inline]
 kvmalloc_node+0x82/0x130 mm/util.c:612
 kvmalloc include/linux/mm.h:822 [inline]
 kvmalloc_array include/linux/mm.h:840 [inline]
 alloc_fdtable+0xce/0x270 fs/file.c:134
 dup_fd+0x781/0xa40 fs/file.c:352
 copy_files+0xe6/0x200 kernel/fork.c:1518
 copy_process+0x128a/0x33a0 kernel/fork.c:2140
 kernel_clone+0x22d/0x900 kernel/fork.c:2524
 __do_sys_clone kernel/fork.c:2643 [inline]
 __se_sys_clone kernel/fork.c:2627 [inline]
 __x64_sys_clone+0x271/0x2e0 kernel/fork.c:2627
 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1332 [inline]
 __free_pages_ok+0x7f8/0x830 mm/page_alloc.c:1612
 free_compound_page+0x72/0x90 mm/page_alloc.c:717
 destroy_compound_page include/linux/mm.h:959 [inline]
 __put_compound_page+0x72/0xb0 mm/swap.c:115
 __put_page+0xc0/0xd0 mm/swap.c:131
 put_page include/linux/mm.h:1255 [inline]
 __skb_frag_unref include/linux/skbuff.h:3065 [inline]
 skb_release_data+0x22d/0x630 net/core/skbuff.c:619
 skb_release_all net/core/skbuff.c:680 [inline]
 __kfree_skb+0x59/0x1c0 net/core/skbuff.c:694
 sk_wmem_free_skb+0x126/0x6b0 include/net/sock.h:1589
 tcp_rtx_queue_unlink_and_free include/net/tcp.h:1871 [inline]
 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3306 [inline]
 tcp_ack+0x2396/0x6990 net/ipv4/tcp_input.c:3853
 tcp_rcv_established+0x72e/0x1a10 net/ipv4/tcp_input.c:5929
 tcp_v4_do_rcv+0x3cc/0x7c0 net/ipv4/tcp_ipv4.c:1689
 sk_backlog_rcv include/net/sock.h:1058 [inline]
 __release_sock+0x162/0x430 net/core/sock.c:2543
 release_sock+0x65/0x1b0 net/core/sock.c:3085
 tcp_recvmsg+0x2116/0x35a0 net/ipv4/tcp.c:2336
 inet_recvmsg+0x157/0x500 net/ipv4/af_inet.c:852
 sock_recvmsg_nosec net/socket.c:886 [inline]
 sock_recvmsg net/socket.c:904 [inline]
 sock_read_iter+0x3a7/0x4d0 net/socket.c:977
 call_read_iter include/linux/fs.h:1963 [inline]
 new_sync_read fs/read_write.c:415 [inline]
 vfs_read+0x9e2/0xbf0 fs/read_write.c:496

Memory state around the buggy address:
 ffff888117d1ef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888117d1ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888117d1f000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                             ^
 ffff888117d1f080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888117d1f100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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