Unverified50% confidenceFactExact time
Signed integer overflow, out-of-bounds array reads and writes, dereferencing null or dangling pointers, violating sequence point rules, and reading uninitialized variables are all explicitly listed by the C standard as undefined behavior.
1
Sources
50%
Confidence
Long-term
Relevance
10/15/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe C standard defines signed integer overflow as undefined behavior, allowing compilers to assume that loop counters never overflow in order to achieve better vectorization optimizations.75% similarUnverifiedC 和 C++ 标准将有符号整数溢出定义为未定义行为（Undefined Behavior）73% similarUnverifiedWhen merged cells exist in a spreadsheet, the header of the corresponding column may be an empty string, which automatic mapping cannot recognize.66% similarUnverifiedC语言编写的内核代码中类型混淆和释放后使用是高发漏洞模式，因为C语言缺乏编译期内存安全保障66% similarUnverifiedIn C++, noexcept is the most common form of exception specification; appending the noexcept keyword after a function declaration means the function promises not to throw exceptions.66% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1037276API
curl https://kongchang.com/api/v1/knowledge/claims/1037276MCP
get_claim(id=1037276)