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mindtct: Check for multiplication overflow in alloc_power_stats()

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Assert if any of the multiplications, which are then used to allocate
memory, would overflow.

Closes: #91
This commit is contained in:
Bastien Nocera 2018-12-13 15:40:24 +01:00
parent a1e69a0e9d
commit 0372ae8ba5
1 changed files with 3 additions and 0 deletions
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libfprint/nbis/mindtct/init.c
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@ -693,6 +693,9 @@ int alloc_power_stats(int **owis, double **opowmaxs, int **opowmax_dirs,
int *wis, *powmax_dirs; int *wis, *powmax_dirs;
double *powmaxs, *pownorms; double *powmaxs, *pownorms;
ASSERT_SIZE_MUL(nstats, sizeof(int));
ASSERT_SIZE_MUL(nstats, sizeof(double));
/* Allocate DFT wave index vector */ /* Allocate DFT wave index vector */
wis = (int *)malloc(nstats * sizeof(int)); wis = (int *)malloc(nstats * sizeof(int));
if(wis == (int *)NULL){ if(wis == (int *)NULL){