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math/gfreduce.[ch]: Fix out-of-bounds memory access.
[u/mdw/catacomb]
/
math
/
ec-prime.c
diff --git
a/math/ec-prime.c
b/math/ec-prime.c
index
f6a7f96
..
c2ec288
100644
(file)
--- a/
math/ec-prime.c
+++ b/
math/ec-prime.c
@@
-267,7
+267,7
@@
static ec *ecprojadd(ec_curve *c, ec *d, const ec *a, const ec *b)
}
}
u = F_ADD(f, u, u, uu); /* %$t = uu + u$% */
- s = F_ADD(f, s, s, ss); /* %$m = ss +
r
$% */
+ s = F_ADD(f, s, s, ss); /* %$m = ss +
s
$% */
uu = F_MUL(f, uu, a->z, w); /* %$z_0 w$% */
dz = F_MUL(f, ss, uu, b->z); /* %$z' = z_0 z_1 w$% */