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BUG: KMSAN: uninit-value in trie_lookup_elem+0x4b9/0x510 kernel/bpf/lpm_trie.c:234
 trie_lookup_elem+0x4b9/0x510 kernel/bpf/lpm_trie.c:234
 ____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_run256+0xb5/0xe0 kernel/bpf/core.c:2237
 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_run8+0x1bd/0x3a0 kernel/trace/bpf_trace.c:2426
 __bpf_trace_jbd2_handle_stats+0x51/0x70 include/trace/events/jbd2.h:210
 trace_jbd2_handle_stats include/trace/events/jbd2.h:210 [inline]
 jbd2_journal_stop+0x1157/0x12c0 fs/jbd2/transaction.c:1869
 __ext4_journal_stop+0x115/0x310 fs/ext4/ext4_jbd2.c:134
 ext4_symlink+0x1171/0x1450 fs/ext4/namei.c:3435
 vfs_symlink+0x1ed/0x3e0 fs/namei.c:4484
 do_symlinkat+0x257/0x8a0 fs/namei.c:4510
 __do_sys_symlinkat fs/namei.c:4526 [inline]
 __se_sys_symlinkat fs/namei.c:4523 [inline]
 __ia32_sys_symlinkat+0xf3/0x160 fs/namei.c:4523
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xba/0x120 arch/x86/entry/common.c:321
 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+0x7f/0x89

Local variable stack created at:
 __bpf_prog_run256+0x45/0xe0 kernel/bpf/core.c:2237
 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_run8+0x1bd/0x3a0 kernel/trace/bpf_trace.c:2426

CPU: 1 PID: 9465 Comm: syz-executor.2 Tainted: G        W          6.9.0-rc2-syzkaller-00042-g3e92c1e6cd87 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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