diff options
Diffstat (limited to 'libblkid')
| -rw-r--r-- | libblkid/src/partitions/dos.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/libblkid/src/partitions/dos.c b/libblkid/src/partitions/dos.c index 9bba32f3b..e79f124f8 100644 --- a/libblkid/src/partitions/dos.c +++ b/libblkid/src/partitions/dos.c @@ -47,6 +47,12 @@ static int parse_dos_extended(blkid_probe pr, blkid_parttable tab, int ct_nodata = 0; /* count ext.partitions without data partitions */ int i; + DBG(LOWPROBE, ul_debug("parse EBR [start=%d, size=%d]", ex_start/ssf, ex_size/ssf)); + if (ex_start == 0) { + DBG(LOWPROBE, ul_debug("Bad offset in primary extended partition -- ignore")); + return 0; + } + while (1) { struct dos_partition *p, *p0; uint32_t start, size; @@ -116,8 +122,12 @@ static int parse_dos_extended(blkid_probe pr, blkid_parttable tab, start = dos_partition_get_start(p) * ssf; size = dos_partition_get_size(p) * ssf; - if (size && is_extended(p)) - break; + if (size && is_extended(p)) { + if (start == 0) + DBG(LOWPROBE, ul_debug("#%d: EBR link offset is zero -- ignore", i + 1)); + else + break; + } } if (i == 4) goto leave; |