[PATCH 3/6] crypto/gc-pbkdf2: redo unsigned indexes

* lib/gc-pbkdf2.c (gc_pbkdf2_prf):
Don’t infloop if upper bound of loop is UINT_MAX.
---
 ChangeLog       | 4 ++++
 lib/gc-pbkdf2.c | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 462d4953c4..b86d469fe5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2026-06-26  Paul Eggert  <[email protected]>
 
+	crypto/gc-pbkdf2: redo unsigned indexes
+	* lib/gc-pbkdf2.c (gc_pbkdf2_prf):
+	Don’t infloop if upper bound of loop is UINT_MAX.
+
 	bitset: possibly widen unsigned indexes
 	* lib/bitset/vector.c (vbitset_empty_p, vbitset_not)
 	(vbitset_disjoint_p, vbitset_and, vbitset_and_or)
diff --git a/lib/gc-pbkdf2.c b/lib/gc-pbkdf2.c
index eb97157c24..a6c281ed28 100644
--- a/lib/gc-pbkdf2.c
+++ b/lib/gc-pbkdf2.c
@@ -56,11 +56,11 @@ gc_pbkdf2_prf (gc_prf_func prf, size_t hLen,
   char U[GC_MAX_DIGEST_SIZE];
   char T[GC_MAX_DIGEST_SIZE];
   int rc;
-  for (unsigned int i = 1; i <= l; i++)
+  for (unsigned int i = 0; i++ < l; )
     {
       memset (T, 0, hLen);
 
-      for (unsigned int u = 1; u <= c; u++)
+      for (unsigned int u = 0; u++ < c; )
         {
           if (u == 1)
             {
-- 
2.54.0