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17c17567fe
On arm64, building with CONFIG_KASAN_HW_TAGS now causes a compile-time error: mm/kasan/report.c: In function 'kasan_non_canonical_hook': mm/kasan/report.c:637:20: error: 'KASAN_SHADOW_OFFSET' undeclared (first use in this function) 637 | if (addr < KASAN_SHADOW_OFFSET) | ^~~~~~~~~~~~~~~~~~~ mm/kasan/report.c:637:20: note: each undeclared identifier is reported only once for each function it appears in mm/kasan/report.c:640:77: error: expected expression before ';' token 640 | orig_addr = (addr - KASAN_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT; This was caused by removing the dependency on CONFIG_KASAN_INLINE that used to prevent this from happening. Use the more specific dependency on KASAN_SW_TAGS || KASAN_GENERIC to only ignore the function for hwasan mode. Link: https://lkml.kernel.org/r/20231016200925.984439-1-arnd@kernel.org Fixes: 12ec6a919b0f ("kasan: print the original fault addr when access invalid shadow") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Haibo Li <haibo.li@mediatek.com> Cc: Kees Cook <keescook@chromium.org> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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README |
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.