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BUG: KASAN: out-of-bounds in instrument_atomic_read_write include/linux/instrumented.h:101 [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:284 [inline]
BUG: KASAN: out-of-bounds in end_buffer_read_sync+0x24/0x30 fs/buffer.c:160
Write of size 4 at addr ffffc900030e79d0 by task ksoftirqd/0/17

CPU: 0 PID: 17 Comm: ksoftirqd/0 Not tainted 5.19.0-rc4-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0xf/0x467 mm/kasan/report.c:313
 print_report mm/kasan/report.c:429 [inline]
 kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic_dec include/linux/atomic/atomic-instrumented.h:257 [inline]
 put_bh include/linux/buffer_head.h:284 [inline]
 end_buffer_read_sync+0x24/0x30 fs/buffer.c:160
 end_bio_bh_io_sync+0xda/0x130 fs/buffer.c:2993
 bio_endio+0x5fe/0x780 block/bio.c:1574
 req_bio_endio block/blk-mq.c:689 [inline]
 blk_update_request+0x401/0x1310 block/blk-mq.c:818
 blk_mq_end_request+0x4b/0x80 block/blk-mq.c:944
 lo_complete_rq+0x1c2/0x280 drivers/block/loop.c:370
 blk_complete_reqs+0xad/0xe0 block/blk-mq.c:1015
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:571
 run_ksoftirqd kernel/softirq.c:934 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc900030e0000, ffffc900030e9000) created by:
 kernel_clone+0xe7/0xab0 kernel/fork.c:2655

The buggy address belongs to the physical page:
page:ffffea0000946980 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x251a6
memcg:ffff88802b63b202
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff88802b63b202
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 8, tgid 8 (kworker/u17:0), ts 108571014702, free_ts 108306943096
 prep_new_page mm/page_alloc.c:2456 [inline]
 get_page_from_freelist+0x1290/0x3b70 mm/page_alloc.c:4198
 __alloc_pages+0x1c7/0x510 mm/page_alloc.c:5426
 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2272
 vm_area_alloc_pages mm/vmalloc.c:2927 [inline]
 __vmalloc_area_node mm/vmalloc.c:2995 [inline]
 __vmalloc_node_range+0x735/0x13e0 mm/vmalloc.c:3165
 alloc_thread_stack_node kernel/fork.c:312 [inline]
 dup_task_struct kernel/fork.c:977 [inline]
 copy_process+0x156e/0x7020 kernel/fork.c:2071
 kernel_clone+0xe7/0xab0 kernel/fork.c:2655
 user_mode_thread+0xad/0xe0 kernel/fork.c:2724
 call_usermodehelper_exec_sync kernel/umh.c:135 [inline]
 call_usermodehelper_exec_work+0x69/0x180 kernel/umh.c:166
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1371 [inline]
 free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1421
 free_unref_page_prepare mm/page_alloc.c:3343 [inline]
 free_unref_page+0x19/0x6a0 mm/page_alloc.c:3438
 slab_destroy mm/slab.c:1615 [inline]
 slabs_destroy+0x89/0xc0 mm/slab.c:1635
 cache_flusharray mm/slab.c:3397 [inline]
 ___cache_free+0x34e/0x670 mm/slab.c:3460
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x4f/0x1b0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x97/0xb0 mm/kasan/common.c:446
 kasan_slab_alloc include/linux/kasan.h:224 [inline]
 slab_post_alloc_hook mm/slab.h:750 [inline]
 slab_alloc_node mm/slab.c:3239 [inline]
 kmem_cache_alloc_node+0x2ea/0x590 mm/slab.c:3593
 __alloc_skb+0x215/0x340 net/core/skbuff.c:414
 alloc_skb include/linux/skbuff.h:1426 [inline]
 nlmsg_new include/net/netlink.h:953 [inline]
 netlink_ack+0x1f0/0xa80 net/netlink/af_netlink.c:2436
 netlink_rcv_skb+0x33d/0x420 net/netlink/af_netlink.c:2507
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:734
 __sys_sendto+0x21a/0x320 net/socket.c:2119
 __do_sys_sendto net/socket.c:2131 [inline]
 __se_sys_sendto net/socket.c:2127 [inline]
 __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2127

Memory state around the buggy address:
 ffffc900030e7880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc900030e7900: 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f3 f3 00
>ffffc900030e7980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1
                                                    ^
 ffffc900030e7a00: f1 f1 f1 f1 f1 00 00 00 00 00 f3 f3 f3 f3 f3 00
 ffffc900030e7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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