If loop_count is bigger than the array, truncate it to the array
length (and not to 32k).
CVE-2019-3832
Change-Id: Icd3f6dc355fab82a9694798d43f00512ab3cef10
psf_binheader_writef (psf, "44", BHW4 (0), BHW4 (0)) ; /* SMTPE format */
psf_binheader_writef (psf, "44", BHW4 (psf->instrument->loop_count), BHW4 (0)) ;
- /* Loop count is signed 16 bit number so we limit it range to something sensible. */
- psf->instrument->loop_count &= 0x7fff ;
+ /* Make sure we don't read past the loops array end. */
+ if (psf->instrument->loop_count > ARRAY_LEN (psf->instrument->loops))
+ psf->instrument->loop_count = ARRAY_LEN (psf->instrument->loops) ;
+
for (tmp = 0 ; tmp < psf->instrument->loop_count ; tmp++)
{ int type ;