You are viewing a plain text version of this content. The canonical link for it is here.
Posted to common-issues@hadoop.apache.org by "saxenapranav (via GitHub)" <gi...@apache.org> on 2023/05/11 04:04:43 UTC
[GitHub] [hadoop] saxenapranav commented on a diff in pull request #4998: HADOOP-18235. vulnerability: we may leak sensitive information in LocalKeyStoreProvider
saxenapranav commented on code in PR #4998:
URL: https://github.com/apache/hadoop/pull/4998#discussion_r1190612252
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/alias/LocalKeyStoreProvider.java:
##########
@@ -142,20 +142,26 @@ protected void initFileSystem(URI uri)
@Override
public void flush() throws IOException {
- super.flush();
- if (LOG.isDebugEnabled()) {
- LOG.debug("Resetting permissions to '" + permissions + "'");
- }
- if (!Shell.WINDOWS) {
- Files.setPosixFilePermissions(Paths.get(file.getCanonicalPath()),
- permissions);
- } else {
- // FsPermission expects a 10-character string because of the leading
- // directory indicator, i.e. "drwx------". The JDK toString method returns
- // a 9-character string, so prepend a leading character.
- FsPermission fsPermission = FsPermission.valueOf(
- "-" + PosixFilePermissions.toString(permissions));
- FileUtil.setPermission(file, fsPermission);
+ super.getWriteLock().lock();
+ try {
+ file.createNewFile();
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Resetting permissions to '" + permissions + "'");
+ }
+ if (!Shell.WINDOWS) {
+ Files.setPosixFilePermissions(Paths.get(file.getCanonicalPath()),
+ permissions);
+ } else {
+ // FsPermission expects a 10-character string because of the leading
+ // directory indicator, i.e. "drwx------". The JDK toString method returns
+ // a 9-character string, so prepend a leading character.
+ FsPermission fsPermission = FsPermission.valueOf(
+ "-" + PosixFilePermissions.toString(permissions));
+ FileUtil.setPermission(file, fsPermission);
+ }
Review Comment:
I mean to say is what if some other process writes into the file between
`file.createNewFile()` and `FileUtil.setPermission(file, fsPermission);`. In that case, the file would be having corrupted data. Kindly correct me if it looks wrong. Thanks.
@arp7
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-issues-help@hadoop.apache.org