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Fix for Undefined-shift in ixheaacd_windowing_short2

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These changes handle the Undefined-shift runtime error
reported because the value of shift was coming
greater than 31.

Bug: ossFuzz:61678
Test: poc in bug
This commit is contained in:
Yash Patil 2023-09-11 18:49:02 +05:30
parent b32c803df9
commit bbb4630478
1 changed files with 3 additions and 0 deletions
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3
decoder/ixheaacd_imdct.c
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@ -392,6 +392,9 @@ static IA_ERRORCODE ixheaacd_fd_imdct_short(ia_usac_data_struct *usac_data,
ixheaacd_normalize(p_in_ibuffer, max_shift - 1, ixheaacd_drc_offset->n_long);
shiftp += max_shift - 1;
if ((shiftp - shift_olap) > 31) {
shiftp = 31 + shift_olap;
}
err_code = ixheaacd_calc_window(&window_short, ixheaacd_drc_offset->n_short,
window_select, usac_data->ec_flag);
if (err_code == -1) return err_code;