1. 解释什么是空指针解引用(null pointer dereference) 空指针解引用是指在程序执行过程中,尝试访问或操作一个未被初始化或已被设置为null的指针所指向的内存位置。在Java、C、C++等语言中,这会导致运行时错误,因为程序试图访问一个不存在的内存地址。 2. 列举导致空指针解引用的常见原因 未初始化的指针或对象引...
[M C NP] Possible null pointer dereference [NP_NULL_ON_SOME_PATH] There is a branch of statement that,if executed,guarantees that a null value will be dereferenced, which would generate aNullPointerExceptionwhen the code is executed. Of course, the problem might be that the branch or state...
In file:TimeStampRequest.java, there is a potential case of null pointer dereference. In methodvalidate(), there is a call toconvert(), whichreturns nullif parameterorigis null. privateSetconvert(Setorig) {if(orig==null) {returnorig;// Returns null if input is null}Setcon=newHashSet(orig...
Overview In file:MustCallConsistencyAnalyzer.java, there is a potential case of null pointer dereference. In methodincrementMustCallImplinside classMustCallConsistencyAnalyzer, there is a call toTypesUtils.getTypeElement. ThengetQualifiedNamemethod is invoked on the supposedly returnedTypeElementobject. pri...
check 099d1f4c286e drm/exynos: fix a possible null-pointer dereference due to data race in exynos_drm_crtc_atomic_disable() check 099d1f4c286e drm/exynos: fix a possible null-pointer dereference due to data race in exynos_drm_crtc_atomic_disable() failed stable inclusion from stable-v...
[ 5.323921] Unable to handle kernel NULL pointer dereference at virtual address 00000000[ 5.332053] Mem abort info:[ 5.334847] Exception class = IABT (current EL), IL = 32 bits[ 5.340831] SET = 0, FnV = 0[ 5.343894] EA = 0, S1PTW = 0[ 5.347044] [00000000...
bool MyHttpClient::SetAdditionalDataToSend(BYTE *data, unsigned int dataSize) { if (data == NULL || dataSize < 0) { return false; } You use unsigned int dataSize. (By the way: When you use unsigned int, dataSize is never < 0, so the if is unnecessary.)Since...
Want to try a null-pointer dereference? Not gonna happen! For embedded systems this is a lifeline, a pushback against the cost entropy of increasingly complex systems needing orders of magnitude more work and effort to come to market, even when they inherit from older code or integrate multip...
V522. Possible null pointer dereference. V523. The 'then' statement is equivalent to the 'else' statement. V524. It is suspicious that the body of 'Foo_1' function is fully equivalent to the body of 'Foo_2' function. V525. Code contains collection of similar blocks. Check items X, ...
There appears to be a possible NULL pointer dereference in the the sanei_configure_attach() function here: