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HDFS-10193. fuse_dfs segfaults if uid cannot be resolved to a username (John Thiltges via cmccabe) 

(cherry picked from commit 0d19a0ce98)
This commit is contained in:
Colin Patrick Mccabe 2016-03-23 11:19:18 -07:00
parent 76602161c0
commit 7ad3162df4
1 changed files with 5 additions and 0 deletions
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5
hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c
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@ -570,6 +570,11 @@ int fuseConnectAsThreadUid(struct hdfsConn **conn)
ctx = fuse_get_context(); ctx = fuse_get_context();
usrname = getUsername(ctx->uid); 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); ret = fuseConnect(usrname, ctx, conn);
free(usrname); free(usrname);
return ret; return ret;