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commit cab09764af1b6ac7a310e48200e70435e4c3fbd6
parent 3b6b167a96b8ebf398a316b1b0ccbe1041bf159c
Author: Christian Grothoff <christian@grothoff.org>
Date:   Thu, 13 Aug 2026 18:59:30 +0200

fix NPE if we only got <4 bytes

Diffstat:
M
src/util/secmod_common.c
 | 
5
+++--

1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/util/secmod_common.c b/src/util/secmod_common.c
@@ -281,7 +281,8 @@ TES_read_work (void *cls,
     }
     off += recv_size;
 more:
-    if (off < sizeof (struct GNUNET_MessageHeader))
+    msize = sizeof (*hdr); /* at least */
+    if (off < msize)
       continue;
     hdr = (const struct GNUNET_MessageHeader *) buf;
     msize = ntohs (hdr->size);
@@ -291,7 +292,7 @@ more:
                 (unsigned int) ntohs (hdr->type),
                 (unsigned int) msize);
 #endif
-    if (msize < sizeof (struct GNUNET_MessageHeader))
+    if (msize < sizeof (*hdr))
     {
       GNUNET_break_op (0);
       return GNUNET_SYSERR;