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Fix potential OOB in memcmp()

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This commit is contained in:
Davide De Rosa 2019-09-17 23:41:35 +02:00
parent d815f5222f
commit d22f40f7e9
1 changed files with 3 additions and 1 deletions
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4
TunnelKit/Sources/Core/ZeroingData.m
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@ -270,8 +270,10 @@
- (BOOL)isEqualToData:(NSData *)data - (BOOL)isEqualToData:(NSData *)data
{ {
NSParameterAssert(data); NSParameterAssert(data);
NSParameterAssert(data.length <= _count);
if (data.length != _count) {
return NO;
}
return !memcmp(_bytes, data.bytes, _count); return !memcmp(_bytes, data.bytes, _count);
} }