Hi Ted,

Recently, one of our customers found this message in pass2 of e2fsck while 
doing some regression testing:
"Entry '4, 0x695a, 0x81ff, 0x0040, 0x8320, 0xa192, 0x0021' in ??? (136554) has
rec_len of 14200, should be 26908."

Both the displayed rec_len and the "should be" value are bogus. The reason is 
that salvage_directory sets a offset beyond blocksize leading to bogus messages.

Signed-off-by: Kalpak Shah <[EMAIL PROTECTED]>

Index: e2fsprogs-1.39/e2fsck/pass2.c
===================================================================
--- e2fsprogs-1.39.orig/e2fsck/pass2.c
+++ e2fsprogs-1.39/e2fsck/pass2.c
@@ -690,7 +690,10 @@ static void salvage_directory(ext2_filsy
         */
        if (prev && dirent->rec_len && (dirent->rec_len % 4) == 0) {
                prev->rec_len += dirent->rec_len;
-               *offset += dirent->rec_len;
+               if (*offset + dirent->rec_len <= fs->blocksize)
+                       *offset += dirent->rec_len;
+               else
+                       *offset = fs->blocksize;
                return;
        }
        /*


Thanks,
Kalpak.

-
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to