From d30a3fb7882e68d3d5a0ce744aa8a579df9bd366 Mon Sep 17 00:00:00 2001
From: "Vladimir E. Koltunov" <PROGrand@users.noreply.github.com>
Date: Wed, 21 Oct 2026 13:22:23 +0000
Subject: [PATCH] [BUG][FIX] Add termination entry to function pointer array
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При запуске asan скомпилированного openssl 4.2 + gostprov:
```
"$PREFIX/bin/openssl" list -digest-algorithms
```

Получаем ошибку:
==1356966==ERROR: AddressSanitizer: global-buffer-overflow on address 0x7bfff49ca4b0 at pc 0x7ffff651f65b bp 0x7fffffffb8d0 sp 0x7fffffffb8c8
READ of size 4 at 0x7bfff49ca4b0 thread T0

    #0 0x7ffff651f65a in evp_md_from_algorithm .../openssl/crypto/evp/digest.c:865:17
...
---
 gost_prov_digest.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gost_prov_digest.c b/gost_prov_digest.c
index a75f695e3..7a237e52b 100644
--- a/gost_prov_digest.c
+++ b/gost_prov_digest.c
@@ -151,6 +151,7 @@ typedef void (*fptr_t)(void);
         { OSSL_FUNC_DIGEST_INIT, (fptr_t)digest_init },                 \
         { OSSL_FUNC_DIGEST_UPDATE, (fptr_t)digest_update },             \
         { OSSL_FUNC_DIGEST_FINAL, (fptr_t)digest_final },               \
+        { 0, NULL },                                                    \
     }
 
 MAKE_FUNCTIONS(GostR3411_94_digest);