From: Colin Walters <walters@verbum.org>
Date: Fri, 8 Oct 2021 13:07:41 +0000 (-0400)
Subject: static-delta: Fix probably not actually possible NULL deref
X-Git-Tag: archive/raspbian/2022.1-3+rpi1~1^2~4^2^2~16^2~2
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=f355482e1f82ee26ba0f202ff6c05b1b14ddc858;p=ostree.git

static-delta: Fix probably not actually possible NULL deref

Flagged by `gcc -fanalyzer`.  I didn't study this really deeply
but I think it's not actually reachable.  Anyways, let's catch
it on general principle.
---

diff --git a/src/ostree/ot-builtin-static-delta.c b/src/ostree/ot-builtin-static-delta.c
index ff31b574..0ce3cefb 100644
--- a/src/ostree/ot-builtin-static-delta.c
+++ b/src/ostree/ot-builtin-static-delta.c
@@ -669,7 +669,7 @@ ostree_builtin_static_delta (int argc, char **argv, OstreeCommandInvocation *inv
       return TRUE; /* Note early return */
     }
 
-  if (!command->fn)
+  if (!command || !command->fn)
     {
       static_delta_usage (argv, TRUE);
       return glnx_throw (error, "Unknown \"static-delta\" subcommand '%s'", cmdname);