[S] Change in coreboot[main]: Update vboot submodule to upstream main

[Shelley Chen (Code Review)]

Shelley Chen has submitted this change. ( https://review.coreboot.org/c/coreboot/+/79685?usp=email )

Change subject: Update vboot submodule to upstream main
......................................................................

Update vboot submodule to upstream main

Updating from commit id c0cb4bfa:
2023-12-08 signer: sign_android_image.sh should die when image repacking fails

to commit id 7c3b60bb:
2023-10-13 firmware/2lib: Use SSE2 to speed-up Montgomery multiplication

This brings in 3 new commits:
7c3b60bb firmware/2lib: Use SSE2 to speed-up Montgomery multiplication
8bb2f369 firmware: 2load_kernel: Set data_key allow_hwcrypto flag
2b183b58 vboot_reference: open drive rdonly when getting details
6ee22049 sign_official_build: switch from dgst to pkeyutl
da69cf46 Makefile: Add support for make 4.3

Also update the implementations of the vb2ex_hwcrypto_modexp() callback
to match the API changes made in vboot.

Change-Id: Ia6e535f4e49045e24ab005ccd7dcbbcf250f96ac
Signed-off-by: Julius Werner 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79685
Tested-by: build bot (Jenkins) 
Reviewed-by: Jérémy Compostella 
Reviewed-by: Subrata Banik 
---
M 3rdparty/vboot
M src/soc/amd/common/psp_verstage/vboot_crypto.c
2 files changed, 9 insertions(+), 6 deletions(-)

Approvals:
  Jérémy Compostella: Looks good to me, but someone else must approve
  Subrata Banik: Looks good to me, approved
  build bot (Jenkins): Verified

diff --git a/3rdparty/vboot b/3rdparty/vboot
index c0cb4bf..7c3b60b 160000
--- a/3rdparty/vboot
+++ b/3rdparty/vboot
@@ -1 +1 @@
-Subproject commit c0cb4bfa743c5f0e4a70e2c1a4d063e0b4178ea9
+Subproject commit 7c3b60bb667f917525b5472f6a34df6402d7fa58
diff --git a/src/soc/amd/common/psp_verstage/vboot_crypto.c b/src/soc/amd/common/psp_verstage/vboot_crypto.c
index 5ed351b..370416f 100644
--- a/src/soc/amd/common/psp_verstage/vboot_crypto.c
+++ b/src/soc/amd/common/psp_verstage/vboot_crypto.c
@@ -135,17 +135,17 @@

vb2_error_t vb2ex_hwcrypto_modexp(const struct vb2_public_key *key,
    			  uint8_t *inout,
-				  uint32_t *workbuf32, int exp)
+				  void *workbuf, size_t workbuf_size,
+				  int exp)
 {
-	/* workbuf32 is guaranteed to be a length of
-	 * 3 * key->arrsize * sizeof(uint32_t).
+	/*
     * Since PSP expects everything in LE and *inout is BE array,
     * we'll use workbuf for temporary buffer for endian conversion.
     */
    struct mod_exp_params mod_exp_param;
    unsigned int key_bytes = key->arrsize * sizeof(uint32_t);
-	uint32_t *sig_swapped = workbuf32;
-	uint32_t *output_buffer = &workbuf32[key->arrsize];
+	uint32_t *sig_swapped = workbuf;
+	uint32_t *output_buffer = &sig_swapped[key->arrsize];
    uint32_t *inout_32 = (uint32_t *)inout;
    uint32_t retval;
    uint32_t i;
@@ -157,6 +157,9 @@
    	return VB2_ERROR_EX_HWCRYPTO_UNSUPPORTED;
    }

+	if ((void *)&output_buffer[key->arrsize] - workbuf > workbuf_size)
+		return VB2_ERROR_WORKBUF_SMALL;
+
    for (i = 0; i < key->arrsize; i++)
    	sig_swapped[i] = swab32(inout_32[key->arrsize - i - 1]);