diff options
| author | Simon Glass <sjg@chromium.org> | 2023-11-12 08:27:45 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-12-13 18:39:05 -0500 |
| commit | 9578dd856a72b0412fa65480d8e3c76a52a6cba1 (patch) | |
| tree | 8140d4fdb34a26ae9bc091a84f11cbae2a7b4f85 /drivers/core/ofnode.c | |
| parent | 1de1a0348755ad5e57790a39059eceeb8e8aba42 (diff) | |
fdt: Check for a valid fdt in oftree_ensure()
Check the header before starting to use it, since this could provide
very confusing later, when ofnode calls start to fail.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/core/ofnode.c')
| -rw-r--r-- | drivers/core/ofnode.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index f72ea416cf1..21a233f90f0 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -83,6 +83,11 @@ static oftree oftree_ensure(void *fdt) if (check_tree_count()) return oftree_null(); + if (fdt_check_header(fdt)) { + log_err("Invalid device tree blob header\n"); + return oftree_null(); + } + /* register the new tree */ i = oftree_count++; oftree_list[i] = fdt; |