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hardening: Disable GCC randstruct for COMPILE_TEST

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There is a GCC crash bug in the randstruct for latest GCC versions that
is being tickled by landlock[1]. Temporarily disable GCC randstruct for
COMPILE_TEST builds to unbreak CI systems for the coming -rc2. This can
be restored once the bug is fixed.

Suggested-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/all/20250407-kbuild-disable-gcc-plugins-v1-1-5d46ae583f5e@kernel.org/ [1]
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20250409151154.work.872-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Kees Cook 2025-04-09 08:11:58 -07:00
parent 62d32440ac
commit f5c68a4e84
1 changed files with 1 additions and 1 deletions
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security/Kconfig.hardening
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@ -344,7 +344,7 @@ config CC_HAS_RANDSTRUCT
choice
prompt "Randomize layout of sensitive kernel structures"
default RANDSTRUCT_FULL if COMPILE_TEST && (GCC_PLUGINS || CC_HAS_RANDSTRUCT)
default RANDSTRUCT_FULL if COMPILE_TEST && CC_HAS_RANDSTRUCT
default RANDSTRUCT_NONE
help
If you enable this, the layouts of structures that are entirely