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-rw-r--r--init/main.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/init/main.c b/init/main.c
index fab4f599c035..07a3116811c5 100644
--- a/init/main.c
+++ b/init/main.c
@@ -545,6 +545,12 @@ static int __init unknown_bootoption(char *param, char *val,
const char *unused, void *arg)
{
size_t len = strlen(param);
+ /*
+ * Well-known bootloader identifiers:
+ * 1. LILO/Grub pass "BOOT_IMAGE=...";
+ * 2. kexec/kdump (kexec-tools) pass "kexec".
+ */
+ const char *bootloader[] = { "BOOT_IMAGE=", "kexec", NULL };
/* Handle params aliased to sysctls */
if (sysctl_is_alias(param))
@@ -552,6 +558,12 @@ static int __init unknown_bootoption(char *param, char *val,
repair_env_string(param, val);
+ /* Handle bootloader identifier */
+ for (int i = 0; bootloader[i]; i++) {
+ if (strstarts(param, bootloader[i]))
+ return 0;
+ }
+
/* Handle obsolete-style parameters */
if (obsolete_checksetup(param))
return 0;