shithub: dav1d

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cdf: fix memleak in dav1d_cdf_thread_unref

Observed with
clusterfuzz-testcase-minimized-dav1d_fuzzer_mt-5700224002031616. Credits
to oss-fuzz.

--- a/src/cdf.c

+++ b/src/cdf.c

@@ -4200,9 +4200,9 @@

 }

 void dav1d_cdf_thread_unref(CdfThreadContext *const cdf) {

-    memset(cdf, 0, sizeof(*cdf));

     if (cdf->ref)

         dav1d_ref_dec(&cdf->ref);

+    memset(cdf, 0, sizeof(*cdf));

 }

 void dav1d_cdf_thread_wait(CdfThreadContext *const cdf) {