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BUG: KASAN: stack-out-of-bounds in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: stack-out-of-bounds in atomic_dec include/linux/atomic/atomic-instrumented.h:592 [inline]
BUG: KASAN: stack-out-of-bounds in put_bh include/linux/buffer_head.h:303 [inline]
BUG: KASAN: stack-out-of-bounds in end_buffer_read_sync+0x93/0xe0 fs/buffer.c:161
Write of size 4 at addr ffffc900037e7830 by task ksoftirqd/1/24

CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.11.0-rc6-syzkaller-00268-g788220eee30d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:488
 kasan_report+0xd9/0x110 mm/kasan/report.c:601
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189
 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:303 [inline]
 end_buffer_read_sync+0x93/0xe0 fs/buffer.c:161
 end_bio_bh_io_sync+0xe8/0x140 fs/buffer.c:2776
 bio_endio+0x6dc/0x820 block/bio.c:1646
 blk_update_request+0x80f/0x17d0 block/blk-mq.c:925
 blk_mq_end_request+0x5b/0x620 block/blk-mq.c:1053
 lo_complete_rq+0x232/0x2f0 drivers/block/loop.c:386
 blk_complete_reqs+0xb1/0xf0 block/blk-mq.c:1128
 handle_softirqs+0x219/0x8f0 kernel/softirq.c:554
 run_ksoftirqd kernel/softirq.c:928 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:920
 smpboot_thread_fn+0x664/0xa10 kernel/smpboot.c:164
 kthread+0x2c4/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc900037e0000, ffffc900037e9000) created by:
 kernel_clone+0xfd/0x960 kernel/fork.c:2781

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888077c84000 pfn:0x77c84
memcg:ffff88802e284302
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: ffff888077c84000 0000000000000000 00000001ffffffff ffff88802e284302
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 25093, tgid 25093 (syz.3.8688), ts 1191446439734, free_ts 1174356734888
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1500
 prep_new_page mm/page_alloc.c:1508 [inline]
 get_page_from_freelist+0x1351/0x2e50 mm/page_alloc.c:3446
 __alloc_pages_noprof+0x22b/0x2460 mm/page_alloc.c:4702
 alloc_pages_mpol_noprof+0x275/0x610 mm/mempolicy.c:2263
 vm_area_alloc_pages mm/vmalloc.c:3587 [inline]
 __vmalloc_area_node mm/vmalloc.c:3656 [inline]
 __vmalloc_node_range_noprof+0x6da/0x14e0 mm/vmalloc.c:3837
 alloc_thread_stack_node kernel/fork.c:313 [inline]
 dup_task_struct kernel/fork.c:1113 [inline]
 copy_process+0x2f3b/0x8de0 kernel/fork.c:2204
 kernel_clone+0xfd/0x960 kernel/fork.c:2781
 __do_sys_clone3+0x1f5/0x270 kernel/fork.c:3085
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5292 tgid 5292 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1101 [inline]
 free_unref_page+0x64a/0xe40 mm/page_alloc.c:2619
 kasan_depopulate_vmalloc_pte+0x63/0x80 mm/kasan/shadow.c:408
 apply_to_pte_range mm/memory.c:2797 [inline]
 apply_to_pmd_range mm/memory.c:2841 [inline]
 apply_to_pud_range mm/memory.c:2877 [inline]
 apply_to_p4d_range mm/memory.c:2913 [inline]
 __apply_to_page_range+0x798/0xdd0 mm/memory.c:2947
 kasan_release_vmalloc+0xac/0xc0 mm/kasan/shadow.c:525
 purge_vmap_node+0x3ec/0x920 mm/vmalloc.c:2209
 __purge_vmap_area_lazy+0x9ca/0xc10 mm/vmalloc.c:2293
 drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2327
 process_one_work+0x9c8/0x1b40 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
 kthread+0x2c4/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffffc900037e7700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc900037e7780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc900037e7800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                     ^
 ffffc900037e7880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc900037e7900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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