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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+0xbd/0xd0 fs/buffer.c:160
Write of size 4 at addr ffffc90005177860 by task ksoftirqd/0/15

CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.1.0-rc8-syzkaller-00019-g6c46867c33fc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description+0x74/0x340 mm/kasan/report.c:284
 print_report+0x107/0x220 mm/kasan/report.c:395
 kasan_report+0x139/0x170 mm/kasan/report.c:495
 kasan_check_range+0x2a7/0x2e0 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+0xbd/0xd0 fs/buffer.c:160
 end_bio_bh_io_sync+0xb1/0x110 fs/buffer.c:2655
 req_bio_endio block/blk-mq.c:762 [inline]
 blk_update_request+0x51c/0x1040 block/blk-mq.c:894
 blk_mq_end_request+0x39/0x70 block/blk-mq.c:1021
 blk_complete_reqs block/blk-mq.c:1099 [inline]
 blk_done_softirq+0x119/0x160 block/blk-mq.c:1104
 __do_softirq+0x277/0x75b kernel/softirq.c:571
 run_ksoftirqd+0xc1/0x120 kernel/softirq.c:934
 smpboot_thread_fn+0x533/0xa10 kernel/smpboot.c:164
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc90005170000, ffffc90005179000) created by:
 dup_task_struct+0x8b/0x490 kernel/fork.c:974

The buggy address belongs to the physical page:
page:ffffea0000a1ee40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x287b9
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 4094, tgid 4094 (syz-executor.0), ts 124035664175, free_ts 123777583212
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x72b/0x7a0 mm/page_alloc.c:4291
 __alloc_pages+0x259/0x560 mm/page_alloc.c:5558
 vm_area_alloc_pages mm/vmalloc.c:2975 [inline]
 __vmalloc_area_node mm/vmalloc.c:3043 [inline]
 __vmalloc_node_range+0x9b2/0x1400 mm/vmalloc.c:3213
 alloc_thread_stack_node+0x307/0x500 kernel/fork.c:311
 dup_task_struct+0x8b/0x490 kernel/fork.c:974
 copy_process+0x637/0x3fc0 kernel/fork.c:2084
 kernel_clone+0x227/0x640 kernel/fork.c:2671
 __do_sys_clone kernel/fork.c:2812 [inline]
 __se_sys_clone kernel/fork.c:2796 [inline]
 __x64_sys_clone+0x276/0x2e0 kernel/fork.c:2796
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 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:1459 [inline]
 free_pcp_prepare+0x80c/0x8f0 mm/page_alloc.c:1509
 free_unref_page_prepare mm/page_alloc.c:3387 [inline]
 free_unref_page_list+0xb4/0x7b0 mm/page_alloc.c:3529
 release_pages+0x233a/0x25d0 mm/swap.c:1055
 __pagevec_release+0x7d/0xf0 mm/swap.c:1075
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 truncate_inode_pages_range+0x4a2/0x1830 mm/truncate.c:373
 kill_bdev block/bdev.c:76 [inline]
 blkdev_flush_mapping+0x153/0x2c0 block/bdev.c:662
 blkdev_put_whole block/bdev.c:693 [inline]
 blkdev_put+0x4a5/0x730 block/bdev.c:953
 blkdev_close+0x55/0x80 block/fops.c:499
 __fput+0x3ba/0x880 fs/file_table.c:320
 task_work_run+0x243/0x300 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffffc90005177700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90005177780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90005177800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                                          ^
 ffffc90005177880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90005177900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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