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-rw-r--r--target/linux/generic/pending-4.14/330-MIPS-kexec-Accept-command-line-parameters-from-users.patch14
1 files changed, 8 insertions, 6 deletions
diff --git a/target/linux/generic/pending-4.14/330-MIPS-kexec-Accept-command-line-parameters-from-users.patch b/target/linux/generic/pending-4.14/330-MIPS-kexec-Accept-command-line-parameters-from-users.patch
index 1187543a46..44d85b5b86 100644
--- a/target/linux/generic/pending-4.14/330-MIPS-kexec-Accept-command-line-parameters-from-users.patch
+++ b/target/linux/generic/pending-4.14/330-MIPS-kexec-Accept-command-line-parameters-from-users.patch
@@ -29,7 +29,7 @@ Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
int (*_machine_kexec_prepare)(struct kimage *) = NULL;
void (*_machine_kexec_shutdown)(void) = NULL;
-@@ -28,6 +25,99 @@ atomic_t kexec_ready_to_reboot = ATOMIC_
+@@ -28,6 +25,101 @@ atomic_t kexec_ready_to_reboot = ATOMIC_
void (*_crash_smp_send_stop)(void) = NULL;
#endif
@@ -81,7 +81,9 @@ Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
+ pr_warn("kexec command line truncated to %zd bytes\n", size);
+
+ /* Copy to kernel space */
-+ copy_from_user(kexec_argv_buf, buf, size);
++ if (copy_from_user(kexec_argv_buf, buf, size))
++ pr_warn("kexec command line copy to kernel space failed\n");
++
+ kexec_argv_buf[size - 1] = 0;
+}
+
@@ -129,7 +131,7 @@ Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
static void kexec_image_info(const struct kimage *kimage)
{
unsigned long i;
-@@ -52,6 +142,18 @@ int
+@@ -52,6 +144,18 @@ int
machine_kexec_prepare(struct kimage *kimage)
{
kexec_image_info(kimage);
@@ -148,7 +150,7 @@ Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
if (_machine_kexec_prepare)
return _machine_kexec_prepare(kimage);
-@@ -89,10 +191,12 @@ machine_kexec(struct kimage *image)
+@@ -89,10 +193,12 @@ machine_kexec(struct kimage *image)
unsigned long *ptr;
reboot_code_buffer =
@@ -162,7 +164,7 @@ Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
if (image->type == KEXEC_TYPE_DEFAULT) {
kexec_indirection_page =
-@@ -100,9 +204,19 @@ machine_kexec(struct kimage *image)
+@@ -100,9 +206,19 @@ machine_kexec(struct kimage *image)
} else {
kexec_indirection_page = (unsigned long)&image->head;
}
@@ -184,7 +186,7 @@ Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
/*
* The generic kexec code builds a page list with physical
-@@ -124,15 +238,16 @@ machine_kexec(struct kimage *image)
+@@ -124,15 +240,16 @@ machine_kexec(struct kimage *image)
/*
* we do not want to be bothered.
*/