diff options
Diffstat (limited to 'target/linux/generic/pending-4.14/330-MIPS-kexec-Accept-command-line-parameters-from-users.patch')
| -rw-r--r-- | target/linux/generic/pending-4.14/330-MIPS-kexec-Accept-command-line-parameters-from-users.patch | 14 |
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. */ |