godzil/dosfstools
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Close hole that permitted clusters to link to (invalid) cluster 1.

Browse Source 
If an orphan chain that linked to cluster 1 was reclaimed to a file,
deletion of the file would result in a filesystem panic.

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>
This commit is contained in:
Steven J. Magnani 2009-10-04 08:37:19 +02:00 committed by Daniel Baumann
parent e51af88eed
commit 8054b4a371
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/fat.c
View File

@ -151,6 +151,11 @@ void read_fat(DOS_FS *fs)
for (i = 2; i < fs->clusters+2; i++) {
FAT_ENTRY curEntry;
get_fat(&curEntry, fs->fat, i, fs);
if (curEntry.value == 1) {
printf("Cluster %ld out of range (1). Setting to EOF.\n",
i-2);
set_fat(fs, i, -1);
}
if (curEntry.value >= fs->clusters+2 &&
(curEntry.value < FAT_MIN_BAD(fs))) {
printf("Cluster %ld out of range (%ld > %ld). Setting to EOF.\n",