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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:323 [inline]
BUG: KASAN: out-of-bounds in end_buffer_read_sync+0x5c/0x90 fs/buffer.c:161
Write of size 4 at addr ffffc900041879a8 by task ksoftirqd/1/21

CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 6.3.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x60/0xa0 lib/dump_stack.c:106
 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:319
 print_report mm/kasan/report.c:430 [inline]
 kasan_report+0x118/0x130 mm/kasan/report.c:536
 check_region_inline mm/kasan/generic.c:181 [inline]
 kasan_check_range+0x13d/0x180 mm/kasan/generic.c:187
 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:323 [inline]
 end_buffer_read_sync+0x5c/0x90 fs/buffer.c:161
 end_bio_bh_io_sync+0xa9/0xf0 fs/buffer.c:2703
 req_bio_endio block/blk-mq.c:795 [inline]
 blk_update_request+0x2ee/0x1180 block/blk-mq.c:927
 blk_mq_end_request+0x46/0x70 block/blk-mq.c:1054
 blk_complete_reqs+0xa0/0xd0 block/blk-mq.c:1132
 __do_softirq+0x1d0/0x901 kernel/softirq.c:571
 run_ksoftirqd kernel/softirq.c:934 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
 smpboot_thread_fn+0x548/0x8c0 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
 [ffffc90004180000, ffffc90004189000) created by:
 kernel_clone+0xb8/0x5f0 kernel/fork.c:2679

The buggy address belongs to the physical page:
page:ffffea00009bdcc0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x26f73
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 7419, tgid 7419 (syz-executor.0), ts 94776590668, free_ts 81347133210
 prep_new_page mm/page_alloc.c:2553 [inline]
 get_page_from_freelist+0x1190/0x2e20 mm/page_alloc.c:4326
 __alloc_pages+0x1c7/0x490 mm/page_alloc.c:5592
 vm_area_alloc_pages mm/vmalloc.c:2953 [inline]
 __vmalloc_area_node mm/vmalloc.c:3029 [inline]
 __vmalloc_node_range+0x7ed/0xfc0 mm/vmalloc.c:3199
 alloc_thread_stack_node kernel/fork.c:311 [inline]
 dup_task_struct kernel/fork.c:979 [inline]
 copy_process+0x10db/0x6b40 kernel/fork.c:2095
 kernel_clone+0xb8/0x5f0 kernel/fork.c:2679
 __do_sys_clone+0xa1/0xe0 kernel/fork.c:2820
 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:1454 [inline]
 free_pcp_prepare+0x5c7/0xa30 mm/page_alloc.c:1504
 free_unref_page_prepare mm/page_alloc.c:3388 [inline]
 free_unref_page+0x19/0x480 mm/page_alloc.c:3483
 kasan_depopulate_vmalloc_pte+0x5c/0x70 mm/kasan/shadow.c:427
 apply_to_pte_range mm/memory.c:2578 [inline]
 apply_to_pmd_range mm/memory.c:2622 [inline]
 apply_to_pud_range mm/memory.c:2658 [inline]
 apply_to_p4d_range mm/memory.c:2694 [inline]
 __apply_to_page_range+0x4fe/0xbc0 mm/memory.c:2728
 kasan_release_vmalloc+0xa7/0xc0 mm/kasan/shadow.c:544
 __purge_vmap_area_lazy+0x6ed/0x2430 mm/vmalloc.c:1767
 drain_vmap_area_work+0x49/0xb0 mm/vmalloc.c:1800
 process_one_work+0x865/0x13f0 kernel/workqueue.c:2390
 worker_thread+0x598/0xec0 kernel/workqueue.c:2537
 kthread+0x294/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Memory state around the buggy address:
 ffffc90004187880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90004187900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90004187980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                     ^
 ffffc90004187a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90004187a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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