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| author |   Yannik Sembritzki <yannik@sembritzki.me> | 2018-08-16 14:05:23 +0100 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-16 09:57:20 -0700 |
| commit | ea93102f32244e3f45c8b26260be77ed0cc1d16c (patch) | |
| tree | 75ccf6885543ec7b84a142ce8e209c0f62ff7fd6 /arch/x86/kernel/kexec-bzimage64.c | |
| parent | Replace magic for trusting the secondary keyring with #define (diff) | |
| download | linux-dev-ea93102f32244e3f45c8b26260be77ed0cc1d16c.tar.xz linux-dev-ea93102f32244e3f45c8b26260be77ed0cc1d16c.zip | |
Fix kexec forbidding kernels signed with keys in the secondary keyring to boot
The split of .system_keyring into .builtin_trusted_keys and
.secondary_trusted_keys broke kexec, thereby preventing kernels signed by
keys which are now in the secondary keyring from being kexec'd.
Fix this by passing VERIFY_USE_SECONDARY_KEYRING to
verify_pefile_signature().
Fixes: d3bfe84129f6 ("certs: Add a secondary system keyring that can be added to dynamically")
Signed-off-by: Yannik Sembritzki <yannik@sembritzki.me>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: kexec@lists.infradead.org
Cc: keyrings@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kernel/kexec-bzimage64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/kexec-bzimage64.c b/arch/x86/kernel/kexec-bzimage64.c index 7326078eaa7a..278cd07228dd 100644 --- a/arch/x86/kernel/kexec-bzimage64.c +++ b/arch/x86/kernel/kexec-bzimage64.c @@ -532,7 +532,7 @@ static int bzImage64_cleanup(void *loader_data) static int bzImage64_verify_sig(const char *kernel, unsigned long kernel_len) { return verify_pefile_signature(kernel, kernel_len, - NULL, + VERIFY_USE_SECONDARY_KEYRING, VERIFYING_KEXEC_PE_SIGNATURE); } #endif |