1 files changed, 0 insertions, 90 deletions
diff --git a/meta/recipes-support/libgcrypt/files/0001-Prefetch-GCM-look-up-tables.patch b/meta/recipes-support/libgcrypt/files/0001-Prefetch-GCM-look-up-tables.patch
deleted file mode 100644
index 4df96f0011..0000000000
--- a/meta/recipes-support/libgcrypt/files/0001-Prefetch-GCM-look-up-tables.patch
+++ /dev/null
@@ -1,90 +0,0 @@
-From 1374254c2904ab5b18ba4a890856824a102d4705 Mon Sep 17 00:00:00 2001
-From: Jussi Kivilinna <jussi.kivilinna@iki.fi>
-Date: Sat, 27 Apr 2019 19:33:28 +0300
-Subject: [PATCH 1/3] Prefetch GCM look-up tables
-
-* cipher/cipher-gcm.c (prefetch_table, do_prefetch_tables)
-(prefetch_tables): New.
-(ghash_internal): Call prefetch_tables.
---
-
-Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
-
-Upstream-Status: Backport
-[https://github.com/gpg/libgcrypt/commit/1374254c2904ab5b18ba4a890856824a102d4705]
-
-CVE: CVE-2019-12904
-
-Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
----
- cipher/cipher-gcm.c | 33 +++++++++++++++++++++++++++++++++
- 1 file changed, 33 insertions(+)
-
-diff --git a/cipher/cipher-gcm.c b/cipher/cipher-gcm.c
-index c19f09f..11f119a 100644
---- a/cipher/cipher-gcm.c
-+++ b/cipher/cipher-gcm.c
-@@ -118,6 +118,34 @@ static const u16 gcmR[256] = {
-   0xbbf0, 0xba32, 0xb874, 0xb9b6, 0xbcf8, 0xbd3a, 0xbf7c, 0xbebe,
- };
- 
-+static inline
-+void prefetch_table(const void *tab, size_t len)
-+{
-+  const volatile byte *vtab = tab;
-+  size_t i;
-+
-+  for (i = 0; i < len; i += 8 * 32)
-+    {
-+      (void)vtab[i + 0 * 32];
-+      (void)vtab[i + 1 * 32];
-+      (void)vtab[i + 2 * 32];
-+      (void)vtab[i + 3 * 32];
-+      (void)vtab[i + 4 * 32];
-+      (void)vtab[i + 5 * 32];
-+      (void)vtab[i + 6 * 32];
-+      (void)vtab[i + 7 * 32];
-+    }
-+
-+  (void)vtab[len - 1];
-+}
-+
-+static inline void
-+do_prefetch_tables (const void *gcmM, size_t gcmM_size)
-+{
-+  prefetch_table(gcmM, gcmM_size);
-+  prefetch_table(gcmR, sizeof(gcmR));
-+}
-+
- #ifdef GCM_TABLES_USE_U64
- static void
- bshift (u64 * b0, u64 * b1)
-@@ -365,6 +393,8 @@ do_ghash (unsigned char *result, const unsigned char *buf, const u32 *gcmM)
- #define fillM(c) \
-   do_fillM (c->u_mode.gcm.u_ghash_key.key, c->u_mode.gcm.gcm_table)
- #define GHASH(c, result, buf) do_ghash (result, buf, c->u_mode.gcm.gcm_table)
-+#define prefetch_tables(c) \
-+  do_prefetch_tables(c->u_mode.gcm.gcm_table, sizeof(c->u_mode.gcm.gcm_table))
- 
- #else
- 
-@@ -430,6 +460,7 @@ do_ghash (unsigned char *hsub, unsigned char *result, const unsigned char *buf)
- 
- #define fillM(c) do { } while (0)
- #define GHASH(c, result, buf) do_ghash (c->u_mode.gcm.u_ghash_key.key, result, buf)
-+#define prefetch_tables(c) do {} while (0)
- 
- #endif /* !GCM_USE_TABLES */
- 
-@@ -441,6 +472,8 @@ ghash_internal (gcry_cipher_hd_t c, byte *result, const byte *buf,
-   const unsigned int blocksize = GCRY_GCM_BLOCK_LEN;
-   unsigned int burn = 0;
- 
-+  prefetch_tables (c);
-+
-   while (nblocks)
-     {
-       burn = GHASH (c, result, buf);
--- 
-2.7.4
-