If the dos partition table is corrupted, kpartx can just keep creating
the same partitions until it runs out of partition numbers. This check
catches the recursion.
Signed-off-by: Cedric Buissart <cbuissar@xxxxxxxxxx>
Signed-off-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx>
---
kpartx/dos.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kpartx/dos.c b/kpartx/dos.c
index 64b27b6..4985152 100644
--- a/kpartx/dos.c
+++ b/kpartx/dos.c
@@ -46,7 +46,7 @@ read_extended_partition(int fd, struct partition *ep, int en,
for (i=0; i<2; i++) {
memcpy(&p, bp + 0x1be + i * sizeof (p), sizeof (p));
if (is_extended(p.sys_type)) {
- if (p.nr_sects && !moretodo) {
+ if (p.start_sect && p.nr_sects && !moretodo) {
next = start + sector_size_mul * le32_to_cpu(p.start_sect);
moretodo = 1;
}
--
1.8.3.1
--
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