opengnsys
/
ntfs-3g
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added a sanity check to ntfswipe 

Unused entries in the MFT may have a bad length leading to fetch fixups
from unallocated memory. Check the condition, but do not wipe, leave it
to chkdsk to decide what should be fixed.
pull/2/head
Jean-Pierre André 2015-04-17 10:49:23 +02:00
parent b249246e9f
commit baab4c287e
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
ntfsprogs/ntfswipe.c
View File

@ -981,6 +981,12 @@ static s64 wipe_mft(ntfs_volume *vol, int byte, enum action act)
// We know that the end marker will only take 4 bytes
size = le32_to_cpu(rec->bytes_in_use) - 4;
if ((size <= 0) || (size > vol->mft_record_size)) {
ntfs_log_error("Bad mft record %lld\n",
(long long)i);
total = -1;
goto free;
}
if (act == act_info) {
//ntfs_log_info("mft %d\n", size);
total += size;