=====================================================
BUG: KMSAN: uninit-value in array_map_lookup_elem+0x14d/0x170 kernel/bpf/arraymap.c:168
 array_map_lookup_elem+0x14d/0x170 kernel/bpf/arraymap.c:168
 ____bpf_map_lookup_elem kernel/bpf/helpers.c:42 [inline]
 bpf_map_lookup_elem+0x5c/0x80 kernel/bpf/helpers.c:38
 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997
 __bpf_prog_run64+0xb5/0xe0 kernel/bpf/core.c:2236
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run1+0xf4/0x2d0 kernel/trace/bpf_trace.c:2419
 __bpf_trace_mm_lru_insertion+0x26/0x30 include/trace/events/pagemap.h:28
 trace_mm_lru_insertion include/trace/events/pagemap.h:28 [inline]
 lru_add_fn+0xadb/0xb80 mm/swap.c:216
 folio_batch_move_lru+0x453/0x6a0 mm/swap.c:233
 lru_add_drain_cpu+0xb9/0x510 mm/swap.c:667
 lru_add_drain mm/swap.c:767 [inline]
 __folio_batch_release+0xa8/0x150 mm/swap.c:1091
 folio_batch_release include/linux/pagevec.h:101 [inline]
 shmem_undo_range+0x80d/0x1dc0 mm/shmem.c:1011
 shmem_truncate_range mm/shmem.c:1120 [inline]
 shmem_evict_inode+0x245/0xeb0 mm/shmem.c:1248
 evict+0x3ae/0xa60 fs/inode.c:667
 iput_final fs/inode.c:1741 [inline]
 iput+0x9ca/0xe10 fs/inode.c:1767
 dentry_unlink_inode+0x560/0x660 fs/dcache.c:400
 __dentry_kill+0x347/0xc00 fs/dcache.c:603
 dput+0xe1/0x240 fs/dcache.c:845
 __fput+0xbfa/0x10c0 fs/file_table.c:430
 ____fput+0x1e/0x30 fs/file_table.c:450
 task_work_run+0x268/0x310 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xce/0x160 kernel/entry/common.c:218
 __do_fast_syscall_32+0xc4/0x120 arch/x86/entry/common.c:324
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:346
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Local variable stack created at:
 __bpf_prog_run64+0x45/0xe0 kernel/bpf/core.c:2236
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run1+0xf4/0x2d0 kernel/trace/bpf_trace.c:2419

CPU: 1 PID: 5045 Comm: syz-executor.2 Not tainted 6.9.0-rc3-syzkaller-00023-g2c71fdf02a95 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
=====================================================