fix: guard mount info cache initialization failure#11717
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Prevent proc-events from accessing an uninitialized mount info bihash when mount_info_cache_init() fails. Propagate the initialization error from create_and_init_proc_info_caches() and add runtime guards before mount info cache lookup/stat/root-check paths.
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Prevent proc-events from accessing an uninitialized mount info bihash when mount_info_cache_init() fails. Propagate the initialization error from create_and_init_proc_info_caches() and add runtime guards before mount info cache lookup/stat/root-check paths.
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