user/sven/linux.git/include/linux/fortify-string.h, branch v5.15.44

fortify: Fix dropped strcpy() compile-time write overflow check

2021-11-18T18:16:25Z

[ Upstream commit 072af0c638dc8a5c7db2edc4dddbd6d44bee3bdb ] The implementation for intra-object overflow in str*-family functions accidentally dropped compile-time write overflow checking in strcpy(), leaving it entirely to run-time. Add back the intended check. Fixes: 6a39e62abbaf ("lib: string.h: detect intra-object overflow in fortified string functions") Cc: Daniel Axtens Cc: Francis Laniel Signed-off-by: Kees Cook Reviewed-by: Nick Desaulniers Signed-off-by: Sasha Levin

string.h: move fortified functions definitions in a dedicated header.

2021-02-26T17:41:04Z

This patch adds fortify-string.h to contain fortified functions definitions. Thus, the code is more separated and compile time is approximately 1% faster for people who do not set CONFIG_FORTIFY_SOURCE. Link: https://lkml.kernel.org/r/20210111092141.22946-1-laniel_francis@privacyrequired.com Link: https://lkml.kernel.org/r/20210111092141.22946-2-laniel_francis@privacyrequired.com Signed-off-by: Francis Laniel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds