@@ -244,12 +244,14 @@ static void sbr_hf_g_filt_c(int (*Y)[2], const int (*X_high)[40][2],
int64_t accu;
for (m = 0; m < m_max; m++) {
- int64_t r = 1LL << (22-g_filt[m].exp);
- accu = (int64_t)X_high[m][ixh][0] * ((g_filt[m].mant + 0x40)>>7);
- Y[m][0] = (int)((accu + r) >> (23-g_filt[m].exp));
+ if (22 - g_filt[m].exp < 61) {
+ int64_t r = 1LL << (22-g_filt[m].exp);
+ accu = (int64_t)X_high[m][ixh][0] * ((g_filt[m].mant + 0x40)>>7);
+ Y[m][0] = (int)((accu + r) >> (23-g_filt[m].exp));
- accu = (int64_t)X_high[m][ixh][1] * ((g_filt[m].mant + 0x40)>>7);
- Y[m][1] = (int)((accu + r) >> (23-g_filt[m].exp));
+ accu = (int64_t)X_high[m][ixh][1] * ((g_filt[m].mant + 0x40)>>7);
+ Y[m][1] = (int)((accu + r) >> (23-g_filt[m].exp));
+ }
}
}
Fixes: runtime error: shift exponent 66 is too large for 64-bit type 'long long' Fixes: 3642/clusterfuzz-testcase-minimized-5443853801750528 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/sbrdsp_fixed.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)