linux-kernel - [PATCH 2/2] arm64: kexec_file: use more system keyrings to verify kernel image signature

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Message-Id: <20210927005004.36367-3-coiby.xu@gmail.com>
Date:   Mon, 27 Sep 2021 08:50:04 +0800
From:   Coiby Xu <coiby.xu@...il.com>
To:     kexec@...ts.infradead.org
Cc:     linux-arm-kernel@...ts.infradead.org, Coiby Xu <coxu@...hat.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 2/2] arm64: kexec_file: use more system keyrings to verify kernel image signature

From: Coiby Xu <coxu@...hat.com>

This allows to verify arm64 kernel image signature using not only
.builtin_trusted_keys but also .secondary_trusted_keys and .platform keyring.

Signed-off-by: Coiby Xu <coiby.xu@...il.com>
---
 arch/arm64/kernel/kexec_image.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm64/kernel/kexec_image.c b/arch/arm64/kernel/kexec_image.c
index 9ec34690e255..2357ee2f229a 100644
--- a/arch/arm64/kernel/kexec_image.c
+++ b/arch/arm64/kernel/kexec_image.c
@@ -14,7 +14,6 @@
 #include <linux/kexec.h>
 #include <linux/pe.h>
 #include <linux/string.h>
-#include <linux/verification.h>
 #include <asm/byteorder.h>
 #include <asm/cpufeature.h>
 #include <asm/image.h>
@@ -133,8 +132,7 @@ static void *image_load(struct kimage *image,
 #ifdef CONFIG_KEXEC_IMAGE_VERIFY_SIG
 static int image_verify_sig(const char *kernel, unsigned long kernel_len)
 {
-	return verify_pefile_signature(kernel, kernel_len, NULL,
-				       VERIFYING_KEXEC_PE_SIGNATURE);
+	return arch_kexec_kernel_verify_pe_sig(kernel, kernel_len);
 }
 #endif
 
-- 
2.33.0