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authorLinus Torvalds2022-07-14 12:15:42 -0700
committerLinus Torvalds2022-07-14 12:15:42 -0700
commit4adfa865bb972d38d35a6fb19e59a86074d25a75 (patch)
treeaa4066c79584b87b4261e602d5573f1d8b97e2dd /kernel
parent2eb5866cac07121b0990d0af5085e36ca5b1ccad (diff)
parent067d2521874135267e681c19d42761c601d503d6 (diff)
Merge tag 'integrity-v5.19-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity fixes from Mimi Zohar: "Here are a number of fixes for recently found bugs. Only 'ima: fix violation measurement list record' was introduced in the current release. The rest address existing bugs" * tag 'integrity-v5.19-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: ima: Fix potential memory leak in ima_init_crypto() ima: force signature verification when CONFIG_KEXEC_SIG is configured ima: Fix a potential integer overflow in ima_appraise_measurement ima: fix violation measurement list record Revert "evm: Fix memleak in init_desc"
Diffstat (limited to 'kernel')
-rw-r--r--kernel/kexec_file.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 145321a5e798..f9261c07b048 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -29,6 +29,15 @@
#include <linux/vmalloc.h>
#include "kexec_internal.h"
+#ifdef CONFIG_KEXEC_SIG
+static bool sig_enforce = IS_ENABLED(CONFIG_KEXEC_SIG_FORCE);
+
+void set_kexec_sig_enforced(void)
+{
+ sig_enforce = true;
+}
+#endif
+
static int kexec_calculate_store_digests(struct kimage *image);
/*
@@ -159,7 +168,7 @@ kimage_validate_signature(struct kimage *image)
image->kernel_buf_len);
if (ret) {
- if (IS_ENABLED(CONFIG_KEXEC_SIG_FORCE)) {
+ if (sig_enforce) {
pr_notice("Enforced kernel signature verification failed (%d).\n", ret);
return ret;
}