Hi, I think this patch may be forgotten. So I send this e-mail. And I cc Andreas who helped me fix the initial version of this patch. Happy new year. On Tue, Dec 28, 2021 at 4:40 PM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
CC greg On Tue, Dec 28, 2021 at 3:06 AM Hangyu Hua <hbh25y@xxxxxxxxx> wrote:When the size of commandp >= size, array out of bound write occurs because len == 0. Signed-off-by: Hangyu Hua <hbh25y@xxxxxxxxx> --- arch/m68k/kernel/uboot.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/m68k/kernel/uboot.c b/arch/m68k/kernel/uboot.c index 928dbd33fc4a..63eaf3c3ddcd 100644 --- a/arch/m68k/kernel/uboot.c +++ b/arch/m68k/kernel/uboot.c @@ -101,5 +101,6 @@ __init void process_uboot_commandline(char *commandp, int size) } parse_uboot_commandline(commandp, len); - commandp[len - 1] = 0; + if (len > 0) + commandp[len - 1] = 0; } -- 2.25.1
