kexec, KEYS: make the code in bzImage64_verify_sig generic
commit 278311e417
("kexec, KEYS: Make use of platform keyring for
signature verify") adds platform keyring support on x86 kexec but not
arm64.
The code in bzImage64_verify_sig uses the keys on the
.builtin_trusted_keys, .machine, if configured and enabled,
.secondary_trusted_keys, also if configured, and .platform keyrings
to verify the signed kernel image as PE file.
Cc: kexec@lists.infradead.org
Cc: keyrings@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
Reviewed-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Coiby Xu <coxu@redhat.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
This commit is contained in:
parent
689a71493b
commit
c903dae894
@ -17,7 +17,6 @@
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/efi.h>
|
||||
#include <linux/verification.h>
|
||||
|
||||
#include <asm/bootparam.h>
|
||||
#include <asm/setup.h>
|
||||
@ -528,28 +527,11 @@ static int bzImage64_cleanup(void *loader_data)
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_KEXEC_BZIMAGE_VERIFY_SIG
|
||||
static int bzImage64_verify_sig(const char *kernel, unsigned long kernel_len)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = verify_pefile_signature(kernel, kernel_len,
|
||||
VERIFY_USE_SECONDARY_KEYRING,
|
||||
VERIFYING_KEXEC_PE_SIGNATURE);
|
||||
if (ret == -ENOKEY && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING)) {
|
||||
ret = verify_pefile_signature(kernel, kernel_len,
|
||||
VERIFY_USE_PLATFORM_KEYRING,
|
||||
VERIFYING_KEXEC_PE_SIGNATURE);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
const struct kexec_file_ops kexec_bzImage64_ops = {
|
||||
.probe = bzImage64_probe,
|
||||
.load = bzImage64_load,
|
||||
.cleanup = bzImage64_cleanup,
|
||||
#ifdef CONFIG_KEXEC_BZIMAGE_VERIFY_SIG
|
||||
.verify_sig = bzImage64_verify_sig,
|
||||
.verify_sig = kexec_kernel_verify_pe_sig,
|
||||
#endif
|
||||
};
|
||||
|
@ -19,6 +19,7 @@
|
||||
#include <asm/io.h>
|
||||
|
||||
#include <uapi/linux/kexec.h>
|
||||
#include <linux/verification.h>
|
||||
|
||||
/* Location of a reserved region to hold the crash kernel.
|
||||
*/
|
||||
@ -212,6 +213,12 @@ static inline void *arch_kexec_kernel_image_load(struct kimage *image)
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_KEXEC_SIG
|
||||
#ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION
|
||||
int kexec_kernel_verify_pe_sig(const char *kernel, unsigned long kernel_len);
|
||||
#endif
|
||||
#endif
|
||||
|
||||
extern int kexec_add_buffer(struct kexec_buf *kbuf);
|
||||
int kexec_locate_mem_hole(struct kexec_buf *kbuf);
|
||||
|
||||
|
@ -123,6 +123,23 @@ void kimage_file_post_load_cleanup(struct kimage *image)
|
||||
}
|
||||
|
||||
#ifdef CONFIG_KEXEC_SIG
|
||||
#ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION
|
||||
int kexec_kernel_verify_pe_sig(const char *kernel, unsigned long kernel_len)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = verify_pefile_signature(kernel, kernel_len,
|
||||
VERIFY_USE_SECONDARY_KEYRING,
|
||||
VERIFYING_KEXEC_PE_SIGNATURE);
|
||||
if (ret == -ENOKEY && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING)) {
|
||||
ret = verify_pefile_signature(kernel, kernel_len,
|
||||
VERIFY_USE_PLATFORM_KEYRING,
|
||||
VERIFYING_KEXEC_PE_SIGNATURE);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
static int kexec_image_verify_sig(struct kimage *image, void *buf,
|
||||
unsigned long buf_len)
|
||||
{
|
||||
|
Loading…
Reference in New Issue
Block a user