HDFS-10193. fuse_dfs segfaults if uid cannot be resolved to a username (John Thiltges via cmccabe)
Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/0d19a0ce Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/0d19a0ce Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/0d19a0ce Branch: refs/heads/HDFS-7240 Commit: 0d19a0ce98053572447bdadf88687ec55f2f1f46 Parents: af1d125 Author: Colin Patrick Mccabe <cmcc...@cloudera.com> Authored: Wed Mar 23 11:19:18 2016 -0700 Committer: Colin Patrick Mccabe <cmcc...@cloudera.com> Committed: Wed Mar 23 11:19:18 2016 -0700 ---------------------------------------------------------------------- .../src/main/native/fuse-dfs/fuse_connect.c | 5 +++++ 1 file changed, 5 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hadoop/blob/0d19a0ce/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c b/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c index e696072..6ee4ad5 100644 --- a/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c +++ b/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c @@ -570,6 +570,11 @@ int fuseConnectAsThreadUid(struct hdfsConn **conn) ctx = fuse_get_context(); usrname = getUsername(ctx->uid); + if (!usrname) { + ERROR("fuseConnectAsThreadUid(): failed to get username for uid %"PRId64 + "\n", (uint64_t)ctx->uid); + return EIO; + } ret = fuseConnect(usrname, ctx, conn); free(usrname); return ret;
