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Checked the locations of MFT and MFTMirr at startup

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On startup make sure the lcns of the MFT and the MFTMirr are not null and
they are different, so that the mounting is denied gracefully if they are.
This commit is contained in:
Jean-Pierre André 2021-01-26 10:06:18 +01:00
parent 5d46b32b91
commit 894b7dd36e
1 changed files with 6 additions and 0 deletions
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6
libntfs-3g/bootsect.c
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@ -154,6 +154,12 @@ BOOL ntfs_boot_sector_is_ntfs(NTFS_BOOT_SECTOR *b)
}
}
/* MFT and MFTMirr may not overlap the boot sector or be the same */
if (!b->mft_lcn || !b->mftmirr_lcn || (b->mft_lcn == b->mftmirr_lcn)) {
ntfs_log_error("Invalid location of MFT or MFTMirr.\n");
goto not_ntfs;
}
if (b->end_of_sector_marker != const_cpu_to_le16(0xaa55))
ntfs_log_debug("Warning: Bootsector has invalid end of sector "
"marker.\n");