diff options
| author | 2022-07-14 09:38:48 +0100 | |
|---|---|---|
| committer | 2022-07-29 12:10:55 +0100 | |
| commit | c0a4830d8dc889eda299524f9dad159c0fc70745 (patch) | |
| tree | 7df4719c9b6c5b144fb2e5b98a45f5238ab0f21e | |
| parent | 200bb7ae519d1066e4d22bf4f675e9273c87eff4 (diff) | |
FROMGIT: libfdt: Handle failed get_name() on BEGIN_NODE
Validate the return value of fdt_get_name() as an ill-formed DT, causing
it to fail, could result in fdt_check_full() dereferencing NULL.
Bug: 238913758
fixes: a2def5479950 ("libfdt: Check that the root-node name is empty")
Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
Message-Id: <20220714083848.958492-1-ptosi@google.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Change-Id: Iab533f4f5cbe041fa1e6baad25acf6a859bbee53
| -rw-r--r-- | libfdt/fdt_check.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libfdt/fdt_check.c b/libfdt/fdt_check.c index fa410a8..71390ee 100644 --- a/libfdt/fdt_check.c +++ b/libfdt/fdt_check.c @@ -66,7 +66,7 @@ int fdt_check_full(const void *fdt, size_t bufsize) int len; name = fdt_get_name(fdt, offset, &len); - if (*name || len) + if (!name || *name || len) return -FDT_ERR_BADSTRUCTURE; } break; |