avcodec/pixlet: Fixes: undefined shift in av_mod_uintp2()

Fixes: runtime error: shift exponent 4294967289 is too large for 32-bit type 'int' Fixes: 3030/clusterfuzz-testcase-minimized-4649809254285312

Michael Niedermayer committed 9 years ago

Commit 8754ccd1 parent a165b531 file · +1 −1Browse files

Showing the changes to libavcodec (1 of 1 file). Show all

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@@ -262,7 +262,7 @@ static int read_high_coeffs(AVCodecContext avctx, uint8_t src, int16_t *dst, i · 261 unmodified lines
262	262
263	263	flag = 0;
264	264
265		− if (state * 4ULL > 0xFF \|\| i >= size)
	265	+ if ((uint64_t)state > 0xFF / 4 \|\| i >= size)
266	266	continue;
267	267
268	268	pfx = ((state + 8) >> 5) + (state ? ff_clz(state): 32) - 24;

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