{"record":{"id":"50e2c470c6810693","repo":"openai/codex","slug":"file-read-offset-overflowed","errorCode":null,"errorMessage":"file read offset overflowed","messagePattern":"file read offset overflowed","errorType":"exception","errorClass":"io::Error","httpStatus":null,"severity":"error","filePath":"codex-rs/exec-server/src/file_read.rs","lineNumber":87,"sourceCode":"        }\n        result\n    }\n\n    pub(crate) async fn close(&self, handle_id: &str) {\n        self.handles.lock().await.remove(handle_id);\n    }\n\n    pub(crate) async fn close_all(&self) {\n        self.handles.lock().await.clear();\n    }\n}\n\nfn read_block_at(file: &File, offset: u64, len: usize) -> io::Result<FileReadBlock> {\n    let mut bytes = vec![0; len];\n    let mut bytes_read = 0;\n    while bytes_read < len {\n        let read_offset = offset.checked_add(bytes_read as u64).ok_or_else(|| {\n            io::Error::new(io::ErrorKind::InvalidInput, \"file read offset overflowed\")\n        })?;\n        match read_file_at(file, &mut bytes[bytes_read..], read_offset) {\n            Ok(0) => break,\n            Ok(read) => bytes_read += read,\n            Err(error) if error.kind() == io::ErrorKind::Interrupted => {}\n            Err(error) => return Err(error),\n        }\n    }\n    bytes.truncate(bytes_read);\n    Ok(FileReadBlock {\n        eof: bytes_read < len,\n        bytes,\n    })\n}\n\n#[cfg(unix)]\nfn read_file_at(file: &File, bytes: &mut [u8], offset: u64) -> io::Result<usize> {\n    std::os::unix::fs::FileExt::read_at(file, bytes, offset)","sourceCodeStart":69,"sourceCodeEnd":105,"githubUrl":"https://github.com/openai/codex/blob/339751715c64496cb86246bfb3935f40e309dd3d/codex-rs/exec-server/src/file_read.rs#L69-L105","documentation":"Error \"file read offset overflowed\" thrown in openai/codex.","triggerScenarios":"Thrown at codex-rs/exec-server/src/file_read.rs:87 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Use a read offset within the file size to avoid overflow."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"339751715c64496cb86246bfb3935f40e309dd3d","analyzedAt":"2026-08-25T05:35:09.876Z","schemaVersion":2},"datasetVersion":"2026-08-25T06:17:31.827Z"}