{"record":{"id":"fea6d22ebe48b5ab","repo":"Hmbown/CodeWhale","slug":"loaded-image-mapping-for-updater-marker-has-no-pat","errorCode":null,"errorMessage":"loaded-image mapping for updater marker has no pathname","messagePattern":"loaded-image mapping for updater marker has no pathname","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/cli/src/update.rs","lineNumber":398,"sourceCode":"            .parse::<u64>()\n            .context(\"loaded-image mapping has an invalid inode\")?;\n        let path = fields.collect::<Vec<_>>().join(\" \");\n\n        if permissions.as_bytes().get(2) != Some(&b'x') {\n            bail!(\"loaded-image mapping for updater marker is not executable\");\n        }\n        if inode == 0 {\n            bail!(\"loaded-image mapping for updater marker has no file inode\");\n        }\n        let (device_major, device_minor) = device\n            .split_once(':')\n            .context(\"loaded-image mapping has an invalid device\")?;\n        let device_major = u32::from_str_radix(device_major, 16)\n            .context(\"loaded-image mapping has an invalid device major number\")?;\n        let device_minor = u32::from_str_radix(device_minor, 16)\n            .context(\"loaded-image mapping has an invalid device minor number\")?;\n        if path.is_empty() {\n            bail!(\"loaded-image mapping for updater marker has no pathname\");\n        }\n\n        let mapping = AndroidImageMapping {\n            start,\n            end,\n            device_major,\n            device_minor,\n            inode,\n            path: PathBuf::from(path),\n        };\n        if matching.replace(mapping).is_some() {\n            bail!(\"multiple /proc/self/maps rows contain the updater marker\");\n        }\n    }\n\n    matching.ok_or_else(|| anyhow!(\"no /proc/self/maps row contains the updater marker\"))\n}\n","sourceCodeStart":380,"sourceCodeEnd":416,"githubUrl":"https://github.com/Hmbown/CodeWhale/blob/73e0f67d83c59909b571efdfc88c4bc28c309cb1/crates/cli/src/update.rs#L380-L416","documentation":"parse_android_image_mapping extracts the trailing pathname field of a /proc/self/maps line; the remainder after fixed fields becomes the path (rejoined, since paths may contain spaces). It bails when this collected path is empty — the mapping has no backing pathname, so the updater cannot name the file backing its loaded image.","triggerScenarios":"android_loaded_executable_proof_report on a maps line for the marker where all fixed columns parse but the trailing path column is absent/empty (anonymous mapping line with no path suffix).","commonSituations":"Anonymous executable mappings (heap/JIT or memfd) matched during the marker scan; minimal Android environments with unusual map entries; deleted files still typically show a path, so empty usually means truly anonymous.","solutions":["Skip to the next /proc/self/maps line with a non-empty pathname that covers the marker address.","Run the binary from an on-disk path so its mapping reports a pathname.","Fall back to /proc/self/exe or dladdr-based resolution for the executable identity.","Use the platform's update channel instead of in-place self-update for anonymous-mapped execution."],"exampleFix":"// before\nif path.is_empty() {\n    bail!(\"loaded-image mapping for updater marker has no pathname\");\n}\n// after (scanner fix)\n// continue to the next maps line; only a mapping with a non-empty\n// pathname and matching address range counts as proof","handlingStrategy":"validation","validationCode":"// a usable maps line has a path column\nlet has_path = line.split_whitespace().count() >= 6;","typeGuard":"fn maps_line_has_path(fields: &[&str]) -> bool { fields.len() >= 6 }","tryCatchPattern":"match parse_android_image_mapping(line) {\n    Err(e) if e.to_string().contains(\"no pathname\") => continue, // anonymous mapping; try next line\n    other => other?,\n}","preventionTips":["Only treat maps lines with a trailing pathname as file-backed proof.","Fall back to /proc/self/exe when no maps line with a pathname covers the marker.","Run the updater binary from a persistent on-disk path."],"tags":["android","proc-maps","self-update","platform"],"backgroundTag":"resource-not-found","analyzedSha":"73e0f67d83c59909b571efdfc88c4bc28c309cb1","analyzedAt":"2026-09-22T01:30:00.501Z","contentChangedAt":"2026-09-22T01:30:00.501Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}