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Cedar/Bridge.c: fix NULL pointer dereference in GetEthDeviceHash()

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This commit is contained in:
Davide Beatrici 2018-10-16 04:40:22 +02:00
parent 2d3469909b
commit 91c5d5feb8
1 changed files with 9 additions and 5 deletions
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8
src/Cedar/Bridge.c
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@ -136,19 +136,23 @@ UINT GetEthDeviceHash()
{ {
#ifdef OS_UNIX #ifdef OS_UNIX
// UNIX // UNIX
UINT num; UINT num = 0;
UINT i; UINT i;
char tmp[4096]; char tmp[4096];
UCHAR hash[SHA1_SIZE]; UCHAR hash[SHA1_SIZE];
TOKEN_LIST *t = GetEthList(); TOKEN_LIST *t = GetEthList();
num = t->NumTokens;
tmp[0] = 0; tmp[0] = 0;
if (t != NULL)
{
num = t->NumTokens;
for (i = 0; i < t->NumTokens; i++) for (i = 0; i < t->NumTokens; i++)
{ {
StrCat(tmp, sizeof(tmp), t->Token[i]); StrCat(tmp, sizeof(tmp), t->Token[i]);
} }
FreeToken(t); FreeToken(t);
}
Sha0(hash, tmp, StrLen(tmp)); Sha0(hash, tmp, StrLen(tmp));