==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: slab-use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
BUG: KASAN: slab-use-after-free in mapping_unevictable include/linux/pagemap.h:269 [inline]
BUG: KASAN: slab-use-after-free in folio_evictable+0xe4/0x250 mm/internal.h:475
Read of size 8 at addr ffff888052d693a0 by task kswapd1/78

CPU: 0 UID: 0 PID: 78 Comm: kswapd1 Not tainted 6.15.0-syzkaller-03478-gc89756bcf406 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xd2/0x2b0 mm/kasan/report.c:521
 kasan_report+0x118/0x150 mm/kasan/report.c:634
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x2b0/0x2c0 mm/kasan/generic.c:189
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 mapping_unevictable include/linux/pagemap.h:269 [inline]
 folio_evictable+0xe4/0x250 mm/internal.h:475
 sort_folio mm/vmscan.c:4439 [inline]
 scan_folios mm/vmscan.c:4565 [inline]
 isolate_folios mm/vmscan.c:4660 [inline]
 evict_folios+0x1945/0x5110 mm/vmscan.c:4689
 try_to_shrink_lruvec+0x705/0x990 mm/vmscan.c:4862
 shrink_one+0x21b/0x7c0 mm/vmscan.c:4907
 shrink_many mm/vmscan.c:4970 [inline]
 lru_gen_shrink_node mm/vmscan.c:5048 [inline]
 shrink_node+0x3139/0x3750 mm/vmscan.c:6019
 kswapd_shrink_node mm/vmscan.c:6870 [inline]
 balance_pgdat mm/vmscan.c:7053 [inline]
 kswapd+0x1675/0x2970 mm/vmscan.c:7318
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 5314:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4147 [inline]
 slab_alloc_node mm/slub.c:4196 [inline]
 kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4203
 gfs2_glock_get+0x263/0xec0 fs/gfs2/glock.c:1183
 gfs2_inode_lookup+0x215/0xb10 fs/gfs2/inode.c:135
 gfs2_dir_search+0x168/0x220 fs/gfs2/dir.c:1667
 gfs2_lookupi+0x3d9/0x5a0 fs/gfs2/inode.c:340
 gfs2_jindex_hold fs/gfs2/ops_fstype.c:571 [inline]
 init_journal+0x54a/0x2260 fs/gfs2/ops_fstype.c:713
 init_inodes+0xdb/0x320 fs/gfs2/ops_fstype.c:848
 gfs2_fill_super+0x1893/0x2010 fs/gfs2/ops_fstype.c:1250
 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1686
 gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1333
 vfs_get_tree+0x92/0x2b0 fs/super.c:1809
 do_new_mount+0x24a/0xa40 fs/namespace.c:3882
 do_mount fs/namespace.c:4222 [inline]
 __do_sys_mount fs/namespace.c:4433 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4410
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 15:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2380 [inline]
 slab_free mm/slub.c:4642 [inline]
 kmem_cache_free+0x18f/0x400 mm/slub.c:4744
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0xca8/0x1710 kernel/rcu/tree.c:2832
 handle_softirqs+0x283/0x870 kernel/softirq.c:579
 run_ksoftirqd+0x9b/0x100 kernel/softirq.c:968
 smpboot_thread_fn+0x542/0xa60 kernel/smpboot.c:164
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Last potentially related work creation:
 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:47
 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:548
 __call_rcu_common kernel/rcu/tree.c:3090 [inline]
 call_rcu+0x142/0x990 kernel/rcu/tree.c:3210
 __gfs2_glock_free+0xb44/0xc90 fs/gfs2/glock.c:172
 gfs2_glock_free+0x3c/0xa0 fs/gfs2/glock.c:178
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Second to last potentially related work creation:
 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:47
 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:548
 insert_work+0x3d/0x330 kernel/workqueue.c:2183
 __queue_work+0xcfc/0xfe0 kernel/workqueue.c:2341
 queue_delayed_work_on+0x18b/0x280 kernel/workqueue.c:2561
 queue_delayed_work include/linux/workqueue.h:677 [inline]
 gfs2_glock_queue_work fs/gfs2/glock.c:250 [inline]
 clear_glock+0x116/0x220 fs/gfs2/glock.c:2154
 glock_hash_walk+0x106/0x1c0 fs/gfs2/glock.c:2084
 gfs2_gl_hash_clear+0xfd/0x660 fs/gfs2/glock.c:2210
 gfs2_fill_super+0x181a/0x2010 fs/gfs2/ops_fstype.c:1303
 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1686
 gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1333
 vfs_get_tree+0x92/0x2b0 fs/super.c:1809
 do_new_mount+0x24a/0xa40 fs/namespace.c:3882
 do_mount fs/namespace.c:4222 [inline]
 __do_sys_mount fs/namespace.c:4433 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4410
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888052d68fd8
 which belongs to the cache gfs2_glock(aspace) of size 1224
The buggy address is located 968 bytes inside of
 freed 1224-byte region [ffff888052d68fd8, ffff888052d694a0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x52d68
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 04fff00000000040 ffff888000547280 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000
head: 04fff00000000040 ffff888000547280 dead000000000122 0000000000000000
head: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000
head: 04fff00000000002 ffffea00014b5a01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5314, tgid 5310 (syz.0.0), ts 70222728834, free_ts 70203852832
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1714
 prep_new_page mm/page_alloc.c:1722 [inline]
 get_page_from_freelist+0x21ce/0x22b0 mm/page_alloc.c:3684
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4974
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2301
 alloc_slab_page mm/slub.c:2450 [inline]
 allocate_slab+0x8a/0x3b0 mm/slub.c:2618
 new_slab mm/slub.c:2672 [inline]
 ___slab_alloc+0xbfc/0x1480 mm/slub.c:3858
 __slab_alloc mm/slub.c:3948 [inline]
 __slab_alloc_node mm/slub.c:4023 [inline]
 slab_alloc_node mm/slub.c:4184 [inline]
 kmem_cache_alloc_noprof+0x283/0x3c0 mm/slub.c:4203
 gfs2_glock_get+0x263/0xec0 fs/gfs2/glock.c:1183
 gfs2_inode_lookup+0x215/0xb10 fs/gfs2/inode.c:135
 gfs2_lookup_root fs/gfs2/ops_fstype.c:422 [inline]
 init_sb+0xa30/0x12c0 fs/gfs2/ops_fstype.c:491
 gfs2_fill_super+0x1531/0x2010 fs/gfs2/ops_fstype.c:1217
 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1686
 gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1333
 vfs_get_tree+0x92/0x2b0 fs/super.c:1809
 do_new_mount+0x24a/0xa40 fs/namespace.c:3882
 do_mount fs/namespace.c:4222 [inline]
 __do_sys_mount fs/namespace.c:4433 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4410
page last free pid 50 tgid 50 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1258 [inline]
 __free_frozen_pages+0xc68/0xe50 mm/page_alloc.c:2721
 pagetable_free include/linux/mm.h:3019 [inline]
 pagetable_dtor_free include/linux/mm.h:3117 [inline]
 __tlb_remove_table+0x2d2/0x3b0 include/asm-generic/tlb.h:215
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0xca8/0x1710 kernel/rcu/tree.c:2832
 handle_softirqs+0x283/0x870 kernel/softirq.c:579
 do_softirq+0xec/0x180 kernel/softirq.c:480
 __local_bh_enable_ip+0x17d/0x1c0 kernel/softirq.c:407
 ipv6_get_lladdr+0x2aa/0x3f0 net/ipv6/addrconf.c:1937
 mld_newpack+0x420/0xc40 net/ipv6/mcast.c:1802
 add_grhead+0x5a/0x2a0 net/ipv6/mcast.c:1899
 add_grec+0x13b2/0x1670 net/ipv6/mcast.c:2037
 mld_send_initial_cr+0x22d/0x4c0 net/ipv6/mcast.c:2282
 mld_dad_work+0x45/0x520 net/ipv6/mcast.c:2308
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x711/0x8a0 kernel/kthread.c:464

Memory state around the buggy address:
 ffff888052d69280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888052d69300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888052d69380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                               ^
 ffff888052d69400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888052d69480: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================