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authorSuresh Siddha <suresh.b.siddha@intel.com>2006-08-15 11:03:01 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2006-08-18 03:29:47 +0400
commit855751125093f758871b70da2951d8b92b6368cc (patch)
tree6c9e71da19a4fa164380c25c0d443f4eb965c917 /net
parent7ea49ed73c8d0d0bdf7c11fc18c61572d2d22176 (diff)
downloadlinux-855751125093f758871b70da2951d8b92b6368cc.tar.xz
[NET]: Fix potential stack overflow in net/core/utils.c
On High end systems (1024 or so cpus) this can potentially cause stack overflow. Fix the stack usage. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/utils.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/core/utils.c b/net/core/utils.c
index 4f96f389243d..e31c90e05594 100644
--- a/net/core/utils.c
+++ b/net/core/utils.c
@@ -130,12 +130,13 @@ void __init net_random_init(void)
static int net_random_reseed(void)
{
int i;
- unsigned long seed[NR_CPUS];
+ unsigned long seed;
- get_random_bytes(seed, sizeof(seed));
for_each_possible_cpu(i) {
struct nrnd_state *state = &per_cpu(net_rand_state,i);
- __net_srandom(state, seed[i]);
+
+ get_random_bytes(&seed, sizeof(seed));
+ __net_srandom(state, seed);
}
return 0;
}