Restore lfcl when LOSTDIR's chain was corrupted and overwritten

with invalid value.

Obtained from:	Android https://android.googlesource.com/platform/external/fsck_msdos/+/4d6d6f8a3674ad67f970e2ae908d34f64e4854cf%5E%21/
MFC after:	2 weeks

This commit is contained in:

Xin LI

2019-04-04 23:34:03 +00:00

parent fff4eaebbf

commit fbf8a5605f

1 changed files with 1 additions and 0 deletions

									
										sbin/fsck_msdosfs/dir.c
									
		+1
		
												View File
												
				@@ -973,6 +973,7 @@ reconnect(int dosfs, struct bootblock *boot, struct fatEntry *fat, cl_t head)

						if (lfcl < CLUST_FIRST || lfcl >= boot->NumClusters) {

							/* Extend LOSTDIR?				XXX */

							pwarn("No space in %s\n", LOSTDIR);

							lfcl = (lostDir->head < boot->NumClusters) ? lostDir->head : 0;

							return FSERROR;

						}

						lfoff = lfcl * boot->ClusterSize