avfilter/signature_lookup: Dont copy uninitialized stuff around

Fixes: CID1403238 Uninitialized pointer read Fixes: CID1403239 Uninitialized pointer read Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit e7174e66ac) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
9 months ago · 4197c3203b
parent ba031f8771
commit 4197c3203b
1 changed files with 2 additions and 2 deletions
--- a/libavfilter/signature_lookup.c
+++ b/libavfilter/signature_lookup.c
@ -447,14 +447,14 @@ static MatchingInfo evaluate_parameters(AVFilterContext *ctx, SignatureContext *
                }

                if (tolerancecount > 2) {
-                    a = aprev;
-                    b = bprev;
                    if (dir == DIR_NEXT) {
                        /* turn around */
                        a = infos->first;
                        b = infos->second;
                        dir = DIR_PREV;
                    } else {
+                        a = aprev;
+                        b = bprev;
                        break;
                    }
                }