V. Karthik Kumar created HADOOP-9635: ----------------------------------------
Summary: Potential Stack Overflow in DomainSocket.c Key: HADOOP-9635 URL: https://issues.apache.org/jira/browse/HADOOP-9635 Project: Hadoop Common Issue Type: Bug Components: native Affects Versions: 2.3.0 Environment: OSX 10.8 Reporter: V. Karthik Kumar When I was running on OSX, the DataNode was segfaulting. On investigation, it was tracked down to this code. A potential stack overflow was also identified. {code} utfLength = (*env)->GetStringUTFLength(env, jstr); if (utfLength > sizeof(path)) { jthr = newIOException(env, "path is too long! We expected a path " "no longer than %zd UTF-8 bytes.", sizeof(path)); goto done; } // GetStringUTFRegion does not pad with NUL (*env)->GetStringUTFRegion(env, jstr, 0, utfLength, path); ... //strtok_r can set rest pointer to NULL when no tokens found. //Causes JVM to crash in rest[0] for (check[0] = '/', check[1] = '\0', rest = path, token = ""; token && rest[0]; token = strtok_r(rest, "/", &rest)) { {code} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira