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BUG: KASAN: out-of-bounds in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: out-of-bounds in atomic_dec include/linux/atomic/atomic-instrumented.h:592 [inline]
BUG: KASAN: out-of-bounds in put_bh include/linux/buffer_head.h:306 [inline]
BUG: KASAN: out-of-bounds in end_buffer_read_sync+0xc1/0xd0 fs/buffer.c:161
Write of size 4 at addr ffffc90003eff740 by task ksoftirqd/0/16

CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.7.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0x163/0x540 mm/kasan/report.c:475
 kasan_report+0x142/0x170 mm/kasan/report.c:588
 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:187
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_dec include/linux/atomic/atomic-instrumented.h:592 [inline]
 put_bh include/linux/buffer_head.h:306 [inline]
 end_buffer_read_sync+0xc1/0xd0 fs/buffer.c:161
 end_bio_bh_io_sync+0xb7/0x110 fs/buffer.c:2775
 req_bio_endio block/blk-mq.c:788 [inline]
 blk_update_request+0x53f/0x1020 block/blk-mq.c:933
 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1056
 blk_complete_reqs block/blk-mq.c:1131 [inline]
 blk_done_softirq+0x103/0x150 block/blk-mq.c:1136
 __do_softirq+0x2b8/0x939 kernel/softirq.c:553
 run_ksoftirqd+0xc5/0x120 kernel/softirq.c:921
 smpboot_thread_fn+0x530/0x9f0 kernel/smpboot.c:164
 kthread+0x2d3/0x370 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc90003ef8000, ffffc90003f01000) created by:
 copy_process+0x5d1/0x3fb0 kernel/fork.c:2332

The buggy address belongs to the physical page:
page:ffffea0000a00f80 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2803e
memcg:ffff88806fcd7702
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff88806fcd7702
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 8196, tgid 8196 (syz-executor.5), ts 246460990234, free_ts 246369744510
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1544 [inline]
 get_page_from_freelist+0x33ea/0x3570 mm/page_alloc.c:3312
 __alloc_pages+0x255/0x680 mm/page_alloc.c:4568
 alloc_pages_mpol+0x3de/0x640 mm/mempolicy.c:2133
 vm_area_alloc_pages mm/vmalloc.c:3063 [inline]
 __vmalloc_area_node mm/vmalloc.c:3139 [inline]
 __vmalloc_node_range+0x9a3/0x14a0 mm/vmalloc.c:3320
 alloc_thread_stack_node kernel/fork.c:309 [inline]
 dup_task_struct+0x3e5/0x7d0 kernel/fork.c:1118
 copy_process+0x5d1/0x3fb0 kernel/fork.c:2332
 kernel_clone+0x222/0x840 kernel/fork.c:2907
 __do_sys_clone3 kernel/fork.c:3208 [inline]
 __se_sys_clone3+0x2cb/0x340 kernel/fork.c:3192
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1137 [inline]
 free_unref_page_prepare+0x931/0xa60 mm/page_alloc.c:2347
 free_unref_page_list+0x5a0/0x840 mm/page_alloc.c:2533
 release_pages+0x2117/0x2400 mm/swap.c:1042
 __folio_batch_release+0x84/0x100 mm/swap.c:1062
 folio_batch_release include/linux/pagevec.h:83 [inline]
 truncate_inode_pages_range+0x457/0xf70 mm/truncate.c:371
 kill_bdev block/bdev.c:76 [inline]
 blkdev_flush_mapping+0x156/0x2b0 block/bdev.c:632
 blkdev_put_whole block/bdev.c:663 [inline]
 blkdev_put+0x4a6/0x770 block/bdev.c:944
 bdev_release+0x57/0x70 block/bdev.c:954
 blkdev_release+0x3b/0x40 block/fops.c:616
 __fput+0x3cc/0x9e0 fs/file_table.c:394
 __do_sys_close fs/open.c:1587 [inline]
 __se_sys_close fs/open.c:1572 [inline]
 __x64_sys_close+0x7e/0x100 fs/open.c:1572
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

Memory state around the buggy address:
 ffffc90003eff600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90003eff680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90003eff700: 00 00 00 00 f1 f1 f1 f1 00 00 00 00 00 00 00 f2
                                              ^
 ffffc90003eff780: f2 f2 f2 f2 00 f2 f2 f2 01 f3 f3 f3 00 00 00 00
 ffffc90003eff800: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
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