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BUG: KASAN: out-of-bounds in instrument_atomic_read_write include/linux/instrumented.h:102 [inline]
BUG: KASAN: out-of-bounds in atomic_dec include/linux/atomic/atomic-instrumented.h:257 [inline]
BUG: KASAN: out-of-bounds in put_bh include/linux/buffer_head.h:320 [inline]
BUG: KASAN: out-of-bounds in end_buffer_read_sync+0x5c/0x90 fs/buffer.c:160
Write of size 4 at addr ffffc9000aabf9a8 by task ksoftirqd/0/15

CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.2.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:306 [inline]
 print_report+0x15e/0x45d mm/kasan/report.c:417
 kasan_report+0xbb/0x1f0 mm/kasan/report.c:517
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189
 instrument_atomic_read_write include/linux/instrumented.h:102 [inline]
 atomic_dec include/linux/atomic/atomic-instrumented.h:257 [inline]
 put_bh include/linux/buffer_head.h:320 [inline]
 end_buffer_read_sync+0x5c/0x90 fs/buffer.c:160
 end_bio_bh_io_sync+0xa9/0xf0 fs/buffer.c:2655
 req_bio_endio block/blk-mq.c:794 [inline]
 blk_update_request+0x31f/0x10a0 block/blk-mq.c:926
 blk_mq_end_request+0x46/0x70 block/blk-mq.c:1053
 blk_complete_reqs+0xa0/0xd0 block/blk-mq.c:1131
 __do_softirq+0x1f7/0xad8 kernel/softirq.c:571
 run_ksoftirqd kernel/softirq.c:934 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
 smpboot_thread_fn+0x548/0x8f0 kernel/smpboot.c:164
 kthread+0x294/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc9000aab8000, ffffc9000aac1000) created by:
 kernel_clone+0xb8/0x720 kernel/fork.c:2681

The buggy address belongs to the physical page:
page:ffffea0000a6c480 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29b12
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 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 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 7933, tgid 7933 (syz-executor.0), ts 135434727042, free_ts 133270504751
 prep_new_page mm/page_alloc.c:2531 [inline]
 get_page_from_freelist+0x119c/0x2ce0 mm/page_alloc.c:4283
 __alloc_pages+0x1c7/0x5a0 mm/page_alloc.c:5549
 vm_area_alloc_pages mm/vmalloc.c:2989 [inline]
 __vmalloc_area_node mm/vmalloc.c:3057 [inline]
 __vmalloc_node_range+0x712/0x1010 mm/vmalloc.c:3227
 alloc_thread_stack_node kernel/fork.c:311 [inline]
 dup_task_struct kernel/fork.c:987 [inline]
 copy_process+0x10a9/0x6bb0 kernel/fork.c:2097
 kernel_clone+0xb8/0x720 kernel/fork.c:2681
 __do_sys_clone+0xa1/0xe0 kernel/fork.c:2822
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 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:1446 [inline]
 free_pcp_prepare+0x65c/0xc00 mm/page_alloc.c:1496
 free_unref_page_prepare mm/page_alloc.c:3369 [inline]
 free_unref_page_list+0x172/0xcc0 mm/page_alloc.c:3510
 release_pages+0x31c/0x10c0 mm/swap.c:1076
 tlb_batch_pages_flush+0x85/0x160 mm/mmu_gather.c:97
 tlb_flush_mmu_free mm/mmu_gather.c:292 [inline]
 tlb_flush_mmu mm/mmu_gather.c:299 [inline]
 tlb_finish_mmu+0x110/0x6c0 mm/mmu_gather.c:391
 exit_mmap+0x1c9/0x610 mm/mmap.c:3100
 __mmput+0xf3/0x440 kernel/fork.c:1207
 exit_mm kernel/exit.c:563 [inline]
 do_exit+0x86f/0x2460 kernel/exit.c:854
 do_group_exit+0xb0/0x250 kernel/exit.c:1012
 get_signal+0x1c43/0x1e90 kernel/signal.c:2859
 arch_do_signal_or_restart+0x75/0x5b0 arch/x86/kernel/signal.c:306
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:296
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffffc9000aabf880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc9000aabf900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc9000aabf980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                     ^
 ffffc9000aabfa00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc9000aabfa80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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