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Null pointer dereference #41

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bird8693 opened this issue Apr 17, 2020 · 0 comments
Open

Null pointer dereference #41

bird8693 opened this issue Apr 17, 2020 · 0 comments

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@bird8693
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Enviroment

operating system: ubuntu18.04
compile command: make
test command: ./run_tests  poc

poc:

https://drive.google.com/open?id=1rn2gi6JArZARCNQIL2EARMLy06a0-i8V

vulnerability description:

It is a Null pointer dereference. Here is where it crashed, you can see the value of rax is 0:

image
But the crash point has a reference to rax：

image
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@bird8693