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BUG: KASAN: null-ptr-deref in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: null-ptr-deref in atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
BUG: KASAN: null-ptr-deref in buffer_busy fs/buffer.c:2891 [inline]
BUG: KASAN: null-ptr-deref in drop_buffers.constprop.0+0x99/0x510 fs/buffer.c:2903
Read of size 4 at addr 0000000000000060 by task kswapd0/80

CPU: 1 PID: 80 Comm: kswapd0 Not tainted 6.5.0-rc5-next-20230809-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 kasan_report+0xda/0x110 mm/kasan/report.c:588
 check_region_inline mm/kasan/generic.c:181 [inline]
 kasan_check_range+0xef/0x190 mm/kasan/generic.c:187
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
 buffer_busy fs/buffer.c:2891 [inline]
 drop_buffers.constprop.0+0x99/0x510 fs/buffer.c:2903
 try_to_free_buffers+0x21b/0x2d0 fs/buffer.c:2933
 filemap_release_folio+0x20f/0x270 mm/filemap.c:4104
 shrink_folio_list+0x28bc/0x3dc0 mm/vmscan.c:2068
 evict_folios+0x6bc/0x18f0 mm/vmscan.c:5194
 try_to_shrink_lruvec+0x769/0xb00 mm/vmscan.c:5370
 shrink_one+0x45f/0x700 mm/vmscan.c:5414
 shrink_many mm/vmscan.c:5466 [inline]
 lru_gen_shrink_node mm/vmscan.c:5583 [inline]
 shrink_node+0x20c2/0x3730 mm/vmscan.c:6523
 kswapd_shrink_node mm/vmscan.c:7328 [inline]
 balance_pgdat+0xa37/0x1b90 mm/vmscan.c:7518
 kswapd+0x5be/0xbf0 mm/vmscan.c:7778
 kthread+0x33a/0x430 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
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