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From: "arnd at linaro dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug sanitizer/99673] [11 Regression] bogus -Wstringop-overread
 warning with address sanitizer due to member address substitution
Date: Sat, 20 Mar 2021 12:22:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99673

--- Comment #2 from Arnd Bergmann <arnd at linaro dot org> ---
Thank you for the detailed analysis. This was the last such warning I get w=
ith
linux kernel randconfig build that I could not explain based on the earlier
discussion, so now I can submit the local workarounds and reference the bug
reports. Among the ten -Wstringop-overread warnings I got for this codebase,
around half should not have been a warning, the others are mostly harmless,
though the warning seems reasonable, while one or two seem to be actual bugs
but need to be confirmed.

Based on your explanation, is it safe to assume this can only affect the
diagnostic output and not lead to incorrect or misoptimized code being
generated?=