1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
--- a/src/fft4g.h
+++ b/src/fft4g.h
@@ -12,6 +12,8 @@
* along with this library; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+#define FFT4G_MAX_SIZE 262144
void lsx_cdft(int, int, double *, int *, double *);
void lsx_rdft(int, int, double *, int *, double *);
--- a/src/fft4g.c
+++ b/src/fft4g.c
@@ -322,6 +322,9 @@
void cdft(int n, int isgn, double *a, int *ip, double *w)
{
+ if (n > FFT4G_MAX_SIZE)
+ return;
+
if (n > (ip[0] << 2)) {
makewt(n >> 2, ip, w);
}
@@ -344,6 +347,9 @@
int nw, nc;
double xi;
+ if (n > FFT4G_MAX_SIZE)
+ return;
+
nw = ip[0];
if (n > (nw << 2)) {
nw = n >> 2;
@@ -384,6 +390,9 @@
int j, nw, nc;
double xr;
+ if (n > FFT4G_MAX_SIZE)
+ return;
+
nw = ip[0];
if (n > (nw << 2)) {
nw = n >> 2;
@@ -435,6 +444,9 @@
int j, nw, nc;
double xr;
+ if (n > FFT4G_MAX_SIZE)
+ return;
+
nw = ip[0];
if (n > (nw << 2)) {
nw = n >> 2;
@@ -486,6 +498,9 @@
int j, k, l, m, mh, nw, nc;
double xr, xi, yr, yi;
+ if (n > FFT4G_MAX_SIZE)
+ return;
+
nw = ip[0];
if (n > (nw << 3)) {
nw = n >> 3;
@@ -576,6 +591,9 @@
int j, k, l, m, mh, nw, nc;
double xr, xi, yr, yi;
+ if (n > FFT4G_MAX_SIZE)
+ return;
+
nw = ip[0];
if (n > (nw << 3)) {
nw = n >> 3;
|
