54f11924e4854177b357af499ebc447dc8c3c590 - kconfig: prevent out-of-bounds user input for numeric options

Tue, 15 Sep 2026 23:15:07 +0200

kconfig: prevent out-of-bounds user input for numeric optionsCurrently, user input of out-of-bounds values for 'int' and 'hex' optionsis possible, leading to later silent failures in Kconfig if that value isused in a comparison, or a warning by GCC or error by Clang if used in theC code.Let's factor out the out-of-bounds check on constants, so that it can bereused for checking user input.The frontend will now reject an attempted user input of an out-of-boundsnumeric value, similarly to how a value outside the active 'range' alreadydoes.For migration of existing configurations, a .config file with anout-of-bounds numeric value will be allowed for now, but will warn theuser when read in by confdata.cAssisted-by: LLMSigned-off-by: Julian Braha Reviewed-by: Nicolas Schier Link: https://patch.msgid.link/20260915211508.291790-5-julianbraha@gmail.comSigned-off-by: Nathan Chancellor List of files: /linux/scripts/kconfig/tests/warn_num_bounds/expected_frontend_stderr

Changes in expected_frontend_stderr

54f11924e4854177b357af499ebc447dc8c3c590 - kconfig: prevent out-of-bounds user input for numeric options