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-rw-r--r--src/extent-scan.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/extent-scan.c b/src/extent-scan.c
index 805997a7b..3af8f991d 100644
--- a/src/extent-scan.c
+++ b/src/extent-scan.c
@@ -140,6 +140,8 @@ extent_scan_read (struct extent_scan *scan)
assert (fm_extents[i].fe_logical
<= OFF_T_MAX - fm_extents[i].fe_length);
+ verify (sizeof last_ei->ext_flags >= sizeof fm_extents->fe_flags);
+
if (si && last_ei->ext_flags
== (fm_extents[i].fe_flags & ~FIEMAP_EXTENT_LAST)
&& (last_ei->ext_logical + last_ei->ext_length