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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:257 [inline]
BUG: KASAN: out-of-bounds in put_bh include/linux/buffer_head.h:329 [inline]
BUG: KASAN: out-of-bounds in end_buffer_read_sync+0xbd/0xd0 fs/buffer.c:161
Write of size 4 at addr ffffc90003c177e0 by task ksoftirqd/0/15

CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.4.0-rc1-syzkaller-00109-gcc3c44c9fda2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:351 [inline]
 print_report+0x15f/0x540 mm/kasan/report.c:462
 kasan_report+0x172/0x1a0 mm/kasan/report.c:572
 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:187
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_dec include/linux/atomic/atomic-instrumented.h:257 [inline]
 put_bh include/linux/buffer_head.h:329 [inline]
 end_buffer_read_sync+0xbd/0xd0 fs/buffer.c:161
 end_bio_bh_io_sync+0xb3/0x110 fs/buffer.c:2730
 req_bio_endio block/blk-mq.c:761 [inline]
 blk_update_request+0x53b/0x1010 block/blk-mq.c:906
 blk_mq_end_request+0x4c/0x310 block/blk-mq.c:1023
 blk_complete_reqs block/blk-mq.c:1101 [inline]
 blk_done_softirq+0xf8/0x140 block/blk-mq.c:1106
 __do_softirq+0x2a7/0x8fc kernel/softirq.c:571
 run_ksoftirqd+0xc1/0x120 kernel/softirq.c:939
 smpboot_thread_fn+0x51b/0x9d0 kernel/smpboot.c:164
 kthread+0x2aa/0x340 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc90003c10000, ffffc90003c19000) created by:
 copy_process+0x5c4/0x42f0 kernel/fork.c:2333

The buggy address belongs to the physical page:
page:ffffea0000a91ec0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a47b
memcg:ffff88814a622c02
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff88814a622c02
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 7475, tgid 7475 (syz-executor.0), ts 175668191226, free_ts 168636867030
 prep_new_page mm/page_alloc.c:1738 [inline]
 get_page_from_freelist+0x31f8/0x3370 mm/page_alloc.c:3502
 __alloc_pages+0x251/0x660 mm/page_alloc.c:4768
 vm_area_alloc_pages mm/vmalloc.c:3009 [inline]
 __vmalloc_area_node mm/vmalloc.c:3085 [inline]
 __vmalloc_node_range+0x9a7/0x14d0 mm/vmalloc.c:3257
 alloc_thread_stack_node kernel/fork.c:313 [inline]
 dup_task_struct+0x3e5/0x7d0 kernel/fork.c:1116
 copy_process+0x5c4/0x42f0 kernel/fork.c:2333
 kernel_clone+0x219/0x860 kernel/fork.c:2918
 __do_sys_clone kernel/fork.c:3061 [inline]
 __se_sys_clone kernel/fork.c:3045 [inline]
 __x64_sys_clone+0x254/0x2a0 kernel/fork.c:3045
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/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:1302 [inline]
 free_unref_page_prepare+0x8e9/0x9f0 mm/page_alloc.c:2564
 free_unref_page_list+0x58e/0x830 mm/page_alloc.c:2705
 release_pages+0x275c/0x2a70 mm/swap.c:1042
 tlb_batch_pages_flush mm/mmu_gather.c:97 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:292 [inline]
 tlb_flush_mmu+0xfc/0x210 mm/mmu_gather.c:299
 tlb_finish_mmu+0xd0/0x1f0 mm/mmu_gather.c:391
 exit_mmap+0x3d6/0xac0 mm/mmap.c:3123
 __mmput+0x115/0x3c0 kernel/fork.c:1351
 exit_mm+0x223/0x300 kernel/exit.c:564
 do_exit+0x60e/0x2280 kernel/exit.c:858
 do_group_exit+0x202/0x2b0 kernel/exit.c:1021
 get_signal+0x1709/0x17e0 kernel/signal.c:2874
 arch_do_signal_or_restart+0x8d/0x610 arch/x86/kernel/signal.c:306
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x60/0x260 kernel/entry/common.c:297
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86

Memory state around the buggy address:
 ffffc90003c17680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90003c17700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90003c17780: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00
                                                          ^
 ffffc90003c17800: 00 00 00 f2 f2 f2 f2 f2 00 f2 f2 f2 01 f3 f3 f3
 ffffc90003c17880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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