From c2a5d1078027b6c0480eda45bd4d2eae80ceb67e Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Thu, 2 Mar 2023 04:08:22 +0100 Subject: [PATCH] cmd: fdt: Map address returned from fdt get addr to sysmem The address returned from 'fdt get addr' command must be mapped into sysmem, as this is a working FDT. Access to this address without mapping it would lead to crash e.g. in sandbox. The following command triggers the crash: " ./u-boot -Dc 'fdt addr $fdtcontroladdr ; fdt get addr var / compatible ; md $var' " Signed-off-by: Marek Vasut Reviewed-by: Simon Glass --- cmd/fdt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/cmd/fdt.c b/cmd/fdt.c index bc19303159..f2576ab4b3 100644 --- a/cmd/fdt.c +++ b/cmd/fdt.c @@ -468,7 +468,8 @@ static int do_fdt(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) /* Get address */ char buf[19]; - snprintf(buf, sizeof(buf), "0x%p", nodep); + snprintf(buf, sizeof(buf), "0x%lx", + (ulong)map_to_sysmem(nodep)); env_set(var, buf); } else if (subcmd[0] == 's') { /* Get size */ -- 2.39.5