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cmd: fdt: Handle 64bit pointers in fdt get addr

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The command assumed 32bit pointers so far, with 64bit pointer the
command would overwrite a piece of stack. Fix it by extending the
array size to cater for 64bit pointer, and use snprintf() to avoid
writing past the end of the array ever again.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Marek Vasut 2023-03-02 04:08:21 +01:00 • committed by Simon Glass
parent 068b7d9ed3
commit 98d114e75c
1 changed files with 2 additions and 2 deletions
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4
cmd/fdt.c
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@ -466,9 +466,9 @@ static int do_fdt(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
return ret;
} else if (subcmd[0] == 'a') {
/* Get address */
char buf[11];
char buf[19];
sprintf(buf, "0x%p", nodep);
snprintf(buf, sizeof(buf), "0x%p", nodep);
env_set(var, buf);
} else if (subcmd[0] == 's') {
/* Get size */