[Bug nptl/22850] Harden TCB against stack protector bypass via overwrite of stack_guard

[yangyanchao6 at huawei dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=22850

yangyanchao6 at huawei dot com <yangyanchao6 at huawei dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |yangyanchao6 at huawei dot com

--- Comment #4 from yangyanchao6 at huawei dot com <yangyanchao6 at huawei dot com> ---
I noticed that on some architectures there is this macro,
THREAD_SET_STACK_GUARD
It determines whether the variables protected by the stack are in the thread
variables or global variables.  Therefore, the CVE does not exist in the ARM
architecture.
What makes the x86 and arm implementations different?  I'd like to submit a
patch to convert the x86 implementation to arm-like.

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