i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ramfs: Prevent creating files or directories named "." and "..".

Browse Source 
Fixes #18031.
This commit is contained in:
Augustin Cavalier
2022-11-29 19:08:16 -05:00
parent 05fdda96b7
commit d48f4fd05f
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/add-ons/kernel/file_systems/ramfs/kernel_interface.cpp
+6
View File
@@ -794,6 +794,9 @@ ramfs_create(fs_volume* _volume, fs_vnode* _dir, const char *name, int openMode,
// check directory // check directory
} else if (!dir) { } else if (!dir) {
SET_ERROR(error, B_BAD_VALUE); SET_ERROR(error, B_BAD_VALUE);
// check special names
} else if (strcmp(name, ".") == 0 || strcmp(name, "..") == 0) {
SET_ERROR(error, B_FILE_EXISTS);
} else if (VolumeWriteLocker locker = volume) { } else if (VolumeWriteLocker locker = volume) {
NodeMTimeUpdater mTimeUpdater(dir); NodeMTimeUpdater mTimeUpdater(dir);
// directory deleted? // directory deleted?
@@ -1126,6 +1129,9 @@ ramfs_create_dir(fs_volume* _volume, fs_vnode* _dir, const char *name, int mode)
// check directory // check directory
} else if (!dir) { } else if (!dir) {
SET_ERROR(error, B_BAD_VALUE); SET_ERROR(error, B_BAD_VALUE);
// check special names
} else if (strcmp(name, ".") == 0 || strcmp(name, "..") == 0) {
SET_ERROR(error, B_FILE_EXISTS);
} else if (VolumeWriteLocker locker = volume) { } else if (VolumeWriteLocker locker = volume) {
NodeMTimeUpdater mTimeUpdater(dir); NodeMTimeUpdater mTimeUpdater(dir);
// directory deleted? // directory deleted?