diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-10 17:32:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-10 17:32:04 -0700 |
| commit | c3665a6be5de16cf6670a00003642114c44d8a70 (patch) | |
| tree | 118ea5fd3cca09eeac0d7dc550915d0e338e4dfe /arch | |
| parent | 12ad143e1b803e541e48b8ba40f550250259ecdd (diff) | |
| parent | 2e884fc9759d8816630d3c30694721a39b7396e0 (diff) | |
Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull integrity updates from James Morris:
"Mimi Zohar says:
'Linux 5.0 introduced the platform keyring to allow verifying the IMA
kexec kernel image signature using the pre-boot keys. This pull
request similarly makes keys on the platform keyring accessible for
verifying the PE kernel image signature.
Also included in this pull request is a new IMA hook that tags tmp
files, in policy, indicating the file hash needs to be calculated.
The remaining patches are cleanup'"
* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
evm: Use defined constant for UUID representation
ima: define ima_post_create_tmpfile() hook and add missing call
evm: remove set but not used variable 'xattr'
encrypted-keys: fix Opt_err/Opt_error = -1
kexec, KEYS: Make use of platform keyring for signature verify
integrity, KEYS: add a reference to platform keyring
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/kexec-bzimage64.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/x86/kernel/kexec-bzimage64.c b/arch/x86/kernel/kexec-bzimage64.c index 1f3b77367948..22f60dd26460 100644 --- a/arch/x86/kernel/kexec-bzimage64.c +++ b/arch/x86/kernel/kexec-bzimage64.c @@ -538,9 +538,17 @@ static int bzImage64_cleanup(void *loader_data) #ifdef CONFIG_KEXEC_BZIMAGE_VERIFY_SIG static int bzImage64_verify_sig(const char *kernel, unsigned long kernel_len) { - return verify_pefile_signature(kernel, kernel_len, - VERIFY_USE_SECONDARY_KEYRING, - VERIFYING_KEXEC_PE_SIGNATURE); + 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 |