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Rejected updates of uninitialized MFTMirr 

Reject updating uninitialized MFTMirr because it leads to endless
recursions as updating the MFTMirr entry of MFT implies further updating
MFTMirr.
This is probably specific to ntfsfix, as mounts are normally rejected
when MFTMirr does not match MFT.
edge.strict_endians^2
Jean-Pierre André 2021-05-17 15:33:41 +03:00 committed by Erik Larsson
parent 3f3b771cb0
commit bb0168e56b
1 changed files with 9 additions and 0 deletions
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9
libntfs-3g/mft.c
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@ -172,6 +172,15 @@ int ntfs_mft_records_write(const ntfs_volume *vol, const MFT_REF mref,
cnt = vol->mftmirr_size - m;
if (cnt > count)
cnt = count;
if ((m + cnt) > vol->mftmirr_na->initialized_size >>
vol->mft_record_size_bits) {
errno = ESPIPE;
ntfs_log_perror("Trying to write non-allocated mftmirr"
" records (%lld > %lld)", (long long)m + cnt,
(long long)vol->mftmirr_na->initialized_size >>
vol->mft_record_size_bits);
return -1;
}
bmirr = ntfs_malloc(cnt * vol->mft_record_size);
if (!bmirr)
return -1;