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BUG: KASAN: slab-out-of-bounds in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: slab-out-of-bounds in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
BUG: KASAN: slab-out-of-bounds in mapping_release_always include/linux/pagemap.h:279 [inline]
BUG: KASAN: slab-out-of-bounds in folio_needs_release mm/internal.h:187 [inline]
BUG: KASAN: slab-out-of-bounds in shrink_folio_list+0x2dbf/0x3e60 mm/vmscan.c:2067
Read of size 8 at addr ffff88805d685961 by task syz-executor.2/8263

CPU: 1 PID: 8263 Comm: syz-executor.2 Not tainted 6.4.0-next-20230707-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:364
 print_report mm/kasan/report.c:475 [inline]
 kasan_report+0x11d/0x130 mm/kasan/report.c:588
 check_region_inline mm/kasan/generic.c:181 [inline]
 kasan_check_range+0xf0/0x190 mm/kasan/generic.c:187
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 mapping_release_always include/linux/pagemap.h:279 [inline]
 folio_needs_release mm/internal.h:187 [inline]
 shrink_folio_list+0x2dbf/0x3e60 mm/vmscan.c:2067
 evict_folios+0x794/0x1940 mm/vmscan.c:5181
 try_to_shrink_lruvec+0x82c/0xb90 mm/vmscan.c:5357
 lru_gen_shrink_lruvec mm/vmscan.c:5494 [inline]
 shrink_lruvec+0x216/0x2810 mm/vmscan.c:6269
 shrink_node_memcgs mm/vmscan.c:6489 [inline]
 shrink_node+0x7ad/0x3690 mm/vmscan.c:6524
 shrink_zones mm/vmscan.c:6763 [inline]
 do_try_to_free_pages+0x3cc/0x18f0 mm/vmscan.c:6825
 try_to_free_mem_cgroup_pages+0x368/0x840 mm/vmscan.c:7140
 try_charge_memcg+0x508/0x13b0 mm/memcontrol.c:2695
 obj_cgroup_charge_pages mm/memcontrol.c:3109 [inline]
 __memcg_kmem_charge_page+0x16e/0x3c0 mm/memcontrol.c:3135
 __alloc_pages+0x1f3/0x4a0 mm/page_alloc.c:4529
 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2279
 __get_free_pages+0xc/0x40 mm/page_alloc.c:4562
 io_mem_alloc+0x30/0x60 io_uring/io_uring.c:2712
 io_allocate_scq_urings io_uring/io_uring.c:3707 [inline]
 io_uring_create io_uring/io_uring.c:3905 [inline]
 io_uring_setup+0x122e/0x2580 io_uring/io_uring.c:4015
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f594c48c389
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f594d134168 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007f594c5ac120 RCX: 00007f594c48c389
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000006325
RBP: 00007f594c4d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc670c084f R14: 00007f594d134300 R15: 0000000000022000
 </TASK>

Allocated by task 5031:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 __kasan_slab_alloc+0x7f/0x90 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook mm/slab.h:762 [inline]
 slab_alloc_node mm/slub.c:3470 [inline]
 slab_alloc mm/slub.c:3478 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3485 [inline]
 kmem_cache_alloc+0x173/0x390 mm/slub.c:3494
 anon_vma_alloc mm/rmap.c:94 [inline]
 anon_vma_fork+0xe2/0x630 mm/rmap.c:361
 dup_mmap+0xc0f/0x14b0 kernel/fork.c:732
 dup_mm kernel/fork.c:1694 [inline]
 copy_mm kernel/fork.c:1743 [inline]
 copy_process+0x6663/0x75c0 kernel/fork.c:2509
 kernel_clone+0xeb/0x890 kernel/fork.c:2917
 __do_sys_clone+0xba/0x100 kernel/fork.c:3060
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff88805d685880
 which belongs to the cache anon_vma of size 208
The buggy address is located 17 bytes to the right of
 allocated 208-byte region [ffff88805d685880, ffff88805d685950)

The buggy address belongs to the physical page:
page:ffffea000175a140 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d685
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000200 ffff888014674140 dead000000000122 0000000000000000
raw: 0000000000000000 00000000000f000f 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 5030, tgid 5030 (syz-executor.1), ts 65703762170, free_ts 15165566242
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2db/0x350 mm/page_alloc.c:1569
 prep_new_page mm/page_alloc.c:1576 [inline]
 get_page_from_freelist+0xfd9/0x2c40 mm/page_alloc.c:3256
 __alloc_pages+0x1cb/0x4a0 mm/page_alloc.c:4512
 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2279
 alloc_slab_page mm/slub.c:1862 [inline]
 allocate_slab+0x25f/0x390 mm/slub.c:2009
 new_slab mm/slub.c:2062 [inline]
 ___slab_alloc+0xbc3/0x15d0 mm/slub.c:3215
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3314
 __slab_alloc_node mm/slub.c:3367 [inline]
 slab_alloc_node mm/slub.c:3460 [inline]
 slab_alloc mm/slub.c:3478 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3485 [inline]
 kmem_cache_alloc+0x371/0x390 mm/slub.c:3494
 anon_vma_alloc mm/rmap.c:94 [inline]
 anon_vma_fork+0xe2/0x630 mm/rmap.c:361
 dup_mmap+0xc0f/0x14b0 kernel/fork.c:732
 dup_mm kernel/fork.c:1694 [inline]
 copy_mm kernel/fork.c:1743 [inline]
 copy_process+0x6663/0x75c0 kernel/fork.c:2509
 kernel_clone+0xeb/0x890 kernel/fork.c:2917
 __do_sys_clone+0xba/0x100 kernel/fork.c:3060
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1160 [inline]
 free_unref_page_prepare+0x62e/0xcb0 mm/page_alloc.c:2383
 free_unref_page+0x33/0x370 mm/page_alloc.c:2478
 free_contig_range+0xb5/0x180 mm/page_alloc.c:6427
 destroy_args+0x6bd/0x910 mm/debug_vm_pgtable.c:1029
 debug_vm_pgtable+0x1f7c/0x3e50 mm/debug_vm_pgtable.c:1410
 do_one_initcall+0x105/0x630 init/main.c:1232
 do_initcall_level init/main.c:1294 [inline]
 do_initcalls init/main.c:1310 [inline]
 do_basic_setup init/main.c:1329 [inline]
 kernel_init_freeable+0x64e/0xba0 init/main.c:1546
 kernel_init+0x1e/0x2c0 init/main.c:1437
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Memory state around the buggy address:
 ffff88805d685800: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffff88805d685880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88805d685900: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
                                                       ^
 ffff88805d685980: fc fc 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88805d685a00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
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