{"record":{"id":"0bd038a119871a32","repo":"Hmbown/CodeWhale","slug":"loaded-image-mapping-for-updater-marker-has-no-fil","errorCode":null,"errorMessage":"loaded-image mapping for updater marker has no file inode","messagePattern":"loaded-image mapping for updater marker has no file inode","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/cli/src/update.rs","lineNumber":388,"sourceCode":"            .context(\"loaded-image mapping is missing permissions\")?;\n        let _offset = fields\n            .next()\n            .context(\"loaded-image mapping is missing its file offset\")?;\n        let device = fields\n            .next()\n            .context(\"loaded-image mapping is missing its device\")?;\n        let inode = fields\n            .next()\n            .context(\"loaded-image mapping is missing its inode\")?\n            .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,","sourceCodeStart":370,"sourceCodeEnd":406,"githubUrl":"https://github.com/Hmbown/CodeWhale/blob/73e0f67d83c59909b571efdfc88c4bc28c309cb1/crates/cli/src/update.rs#L370-L406","documentation":"When parsing the /proc/self/maps line backing the updater image, a zero inode means the mapping is anonymous (not backed by a file on disk). Since the purpose is to prove which real file the executable was loaded from, an anonymous mapping cannot serve as proof and this error is thrown.","triggerScenarios":"android_loaded_executable_proof_report parsing a maps line for the marker whose inode field is 0 — e.g. memfd, shared memory, or deleted-anonymous executable mapping.","commonSituations":"Binary executed from memory (memfd_create) or via an unpacking loader; overlay/tmpfs environments reporting inode 0; the earlier dladdr path already failed so maps fallback hit an anonymous exec mapping.","solutions":["Launch the binary from a real filesystem file so its exec mapping has a nonzero inode.","Continue scanning /proc/self/maps for a file-backed (inode != 0) executable mapping covering the marker.","Use /proc/self/exe as an alternate source of executable identity when available.","Rely on the platform package/update channel rather than self-update in memfd execution contexts."],"exampleFix":"// before\n// executing binary via memfd\nlet fd = memfd_create(...)?; execveat(fd, ...)?;\n// after\nstd::fs::write(\"/data/local/tmp/codewhale\", bytes)?;\nCommand::new(\"/data/local/tmp/codewhale\")  // file-backed exec, inode != 0","handlingStrategy":"validation","validationCode":"// anonymous mappings have inode 0 — skip them\nlet inode = line.split_whitespace().nth(4)\n    .and_then(|f| f.parse::<u64>().ok())\n    .unwrap_or(0);\nif inode == 0 { /* not file-backed; skip */ }","typeGuard":"fn is_file_backed(inode: u64) -> bool { inode != 0 }","tryCatchPattern":"match parse_android_image_mapping(line) {\n    Err(e) if e.to_string().contains(\"no file inode\") => continue,\n    other => other?,\n}","preventionTips":["Execute the binary from a real filesystem file so its mapping has an inode.","Avoid memfd/execveat-based launches for binaries that must self-update.","Filter maps lines to inode != 0 before treating one as proof."],"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"}