From: Kees Cook <keescook@chromium.org> To: linux-hardening@vger.kernel.org Cc: Kees Cook <keescook@chromium.org>, "Gustavo A. R. Silva" <gustavoars@kernel.org>, Keith Packard <keithpac@amazon.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-staging@lists.linux.dev, linux-block@vger.kernel.org, linux-kbuild@vger.kernel.org, clang-built-linux@googlegroups.com Subject: [PATCH 60/64] fortify: Work around Clang inlining bugs Date: Tue, 27 Jul 2021 13:58:51 -0700 [thread overview] Message-ID: <20210727205855.411487-61-keescook@chromium.org> (raw) In-Reply-To: <20210727205855.411487-1-keescook@chromium.org> To enable FORTIFY_SOURCE support for Clang, the kernel must work around a pair of bugs, related to Clang's inlining. Change all the fortified APIs into macros with different inline names to bypass Clang's broken inline-of-a-builtin detection: https://bugs.llvm.org/show_bug.cgi?id=50322 Lift all misbehaving __builtin_object_size() calls into the macros to bypass Clang's broken __builtin_object_size() arguments-of-an-inline visibility: https://github.com/ClangBuiltLinux/linux/issues/1401 Thankfully, due to how the inlining already behaves in GCC, this change has no effect on GCC builds, but allows Clang to finally gain full FORTIFY coverage. However, because of a third bug which had no work-arounds, FORTIFY_SOURCE will only work with Clang version 13 and later. Update the Kconfig to reflect the new requirements. Signed-off-by: Kees Cook <keescook@chromium.org> --- include/linux/fortify-string.h | 33 +++++++++++++++++++++------------ security/Kconfig | 2 +- 2 files changed, 22 insertions(+), 13 deletions(-) diff --git a/include/linux/fortify-string.h b/include/linux/fortify-string.h index 718325331021..4afd42079d3b 100644 --- a/include/linux/fortify-string.h +++ b/include/linux/fortify-string.h @@ -38,10 +38,11 @@ extern char *__underlying_strncpy(char *p, const char *q, __kernel_size_t size) #define __underlying_strncpy __builtin_strncpy #endif -__FORTIFY_INLINE char *strncpy(char *p, const char *q, __kernel_size_t size) +#define strncpy(p, q, s) __fortify_strncpy(p, q, s, __builtin_object_size(p, 1)) +__FORTIFY_INLINE char *__fortify_strncpy(char *p, const char *q, + __kernel_size_t size, + const size_t p_size) { - size_t p_size = __builtin_object_size(p, 1); - if (__builtin_constant_p(size) && p_size < size) __write_overflow(); if (p_size < size) @@ -112,12 +113,15 @@ __FORTIFY_INLINE size_t strlcpy(char *p, const char *q, size_t size) /* defined after fortified strnlen to reuse it */ extern ssize_t __real_strscpy(char *, const char *, size_t) __RENAME(strscpy); -__FORTIFY_INLINE ssize_t strscpy(char *p, const char *q, size_t size) +#define strscpy(p, q, s) __fortify_strscpy(p, q, s, \ + __builtin_object_size(p, 1), \ + __builtin_object_size(q, 1)) +__FORTIFY_INLINE ssize_t __fortify_strscpy(char *p, const char *q, + size_t size, + const size_t p_size, + const size_t q_size) { size_t len; - /* Use string size rather than possible enclosing struct size. */ - size_t p_size = __builtin_object_size(p, 1); - size_t q_size = __builtin_object_size(q, 1); /* If we cannot get size of p and q default to call strscpy. */ if (p_size == (size_t) -1 && q_size == (size_t) -1) @@ -329,7 +333,8 @@ __FORTIFY_INLINE void fortify_memcpy_chk(__kernel_size_t size, memmove) extern void *__real_memscan(void *, int, __kernel_size_t) __RENAME(memscan); -__FORTIFY_INLINE void *memscan(void *p, int c, __kernel_size_t size) +#define memscan(p, c, s) __fortify_memscan(p, c, s) +__FORTIFY_INLINE void *__fortify_memscan(void *p, int c, __kernel_size_t size) { size_t p_size = __builtin_object_size(p, 0); @@ -340,7 +345,8 @@ __FORTIFY_INLINE void *memscan(void *p, int c, __kernel_size_t size) return __real_memscan(p, c, size); } -__FORTIFY_INLINE int memcmp(const void *p, const void *q, __kernel_size_t size) +#define memcmp(p, q, s) __fortify_memcmp(p, q, s) +__FORTIFY_INLINE int __fortify_memcmp(const void *p, const void *q, __kernel_size_t size) { size_t p_size = __builtin_object_size(p, 0); size_t q_size = __builtin_object_size(q, 0); @@ -356,7 +362,8 @@ __FORTIFY_INLINE int memcmp(const void *p, const void *q, __kernel_size_t size) return __underlying_memcmp(p, q, size); } -__FORTIFY_INLINE void *memchr(const void *p, int c, __kernel_size_t size) +#define memchr(p, c, s) __fortify_memchr(p, c, s) +__FORTIFY_INLINE void *__fortify_memchr(const void *p, int c, __kernel_size_t size) { size_t p_size = __builtin_object_size(p, 0); @@ -368,7 +375,8 @@ __FORTIFY_INLINE void *memchr(const void *p, int c, __kernel_size_t size) } void *__real_memchr_inv(const void *s, int c, size_t n) __RENAME(memchr_inv); -__FORTIFY_INLINE void *memchr_inv(const void *p, int c, size_t size) +#define memchr_inv(p, c, s) __fortify_memchr_inv(p, c, s) +__FORTIFY_INLINE void *__fortify_memchr_inv(const void *p, int c, size_t size) { size_t p_size = __builtin_object_size(p, 0); @@ -392,7 +400,8 @@ __FORTIFY_INLINE void *kmemdup(const void *p, size_t size, gfp_t gfp) } /* Defined after fortified strlen to reuse it. */ -__FORTIFY_INLINE char *strcpy(char *p, const char *q) +#define strcpy(p, q) __fortify_strcpy(p, q) +__FORTIFY_INLINE char *__fortify_strcpy(char *p, const char *q) { size_t p_size = __builtin_object_size(p, 1); size_t q_size = __builtin_object_size(q, 1); diff --git a/security/Kconfig b/security/Kconfig index 8f0e675e70a4..509ec61bc54b 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -193,7 +193,7 @@ config FORTIFY_SOURCE depends on ARCH_HAS_FORTIFY_SOURCE # https://bugs.llvm.org/show_bug.cgi?id=50322 # https://bugs.llvm.org/show_bug.cgi?id=41459 - depends on !CONFIG_CC_IS_CLANG + depends on !CONFIG_CC_IS_CLANG || CLANG_VERSION >= 130000 help Detect overflows of buffers in common string and memory functions where the compiler can determine and validate the buffer sizes. -- 2.30.2
WARNING: multiple messages have this Message-ID (diff)
From: Kees Cook <keescook@chromium.org> To: linux-hardening@vger.kernel.org Cc: Kees Cook <keescook@chromium.org>, linux-kbuild@vger.kernel.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, linux-staging@lists.linux.dev, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, "Gustavo A. R. Silva" <gustavoars@kernel.org>, linux-block@vger.kernel.org, clang-built-linux@googlegroups.com, Keith Packard <keithpac@amazon.com>, netdev@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org> Subject: [PATCH 60/64] fortify: Work around Clang inlining bugs Date: Tue, 27 Jul 2021 13:58:51 -0700 [thread overview] Message-ID: <20210727205855.411487-61-keescook@chromium.org> (raw) In-Reply-To: <20210727205855.411487-1-keescook@chromium.org> To enable FORTIFY_SOURCE support for Clang, the kernel must work around a pair of bugs, related to Clang's inlining. Change all the fortified APIs into macros with different inline names to bypass Clang's broken inline-of-a-builtin detection: https://bugs.llvm.org/show_bug.cgi?id=50322 Lift all misbehaving __builtin_object_size() calls into the macros to bypass Clang's broken __builtin_object_size() arguments-of-an-inline visibility: https://github.com/ClangBuiltLinux/linux/issues/1401 Thankfully, due to how the inlining already behaves in GCC, this change has no effect on GCC builds, but allows Clang to finally gain full FORTIFY coverage. However, because of a third bug which had no work-arounds, FORTIFY_SOURCE will only work with Clang version 13 and later. Update the Kconfig to reflect the new requirements. Signed-off-by: Kees Cook <keescook@chromium.org> --- include/linux/fortify-string.h | 33 +++++++++++++++++++++------------ security/Kconfig | 2 +- 2 files changed, 22 insertions(+), 13 deletions(-) diff --git a/include/linux/fortify-string.h b/include/linux/fortify-string.h index 718325331021..4afd42079d3b 100644 --- a/include/linux/fortify-string.h +++ b/include/linux/fortify-string.h @@ -38,10 +38,11 @@ extern char *__underlying_strncpy(char *p, const char *q, __kernel_size_t size) #define __underlying_strncpy __builtin_strncpy #endif -__FORTIFY_INLINE char *strncpy(char *p, const char *q, __kernel_size_t size) +#define strncpy(p, q, s) __fortify_strncpy(p, q, s, __builtin_object_size(p, 1)) +__FORTIFY_INLINE char *__fortify_strncpy(char *p, const char *q, + __kernel_size_t size, + const size_t p_size) { - size_t p_size = __builtin_object_size(p, 1); - if (__builtin_constant_p(size) && p_size < size) __write_overflow(); if (p_size < size) @@ -112,12 +113,15 @@ __FORTIFY_INLINE size_t strlcpy(char *p, const char *q, size_t size) /* defined after fortified strnlen to reuse it */ extern ssize_t __real_strscpy(char *, const char *, size_t) __RENAME(strscpy); -__FORTIFY_INLINE ssize_t strscpy(char *p, const char *q, size_t size) +#define strscpy(p, q, s) __fortify_strscpy(p, q, s, \ + __builtin_object_size(p, 1), \ + __builtin_object_size(q, 1)) +__FORTIFY_INLINE ssize_t __fortify_strscpy(char *p, const char *q, + size_t size, + const size_t p_size, + const size_t q_size) { size_t len; - /* Use string size rather than possible enclosing struct size. */ - size_t p_size = __builtin_object_size(p, 1); - size_t q_size = __builtin_object_size(q, 1); /* If we cannot get size of p and q default to call strscpy. */ if (p_size == (size_t) -1 && q_size == (size_t) -1) @@ -329,7 +333,8 @@ __FORTIFY_INLINE void fortify_memcpy_chk(__kernel_size_t size, memmove) extern void *__real_memscan(void *, int, __kernel_size_t) __RENAME(memscan); -__FORTIFY_INLINE void *memscan(void *p, int c, __kernel_size_t size) +#define memscan(p, c, s) __fortify_memscan(p, c, s) +__FORTIFY_INLINE void *__fortify_memscan(void *p, int c, __kernel_size_t size) { size_t p_size = __builtin_object_size(p, 0); @@ -340,7 +345,8 @@ __FORTIFY_INLINE void *memscan(void *p, int c, __kernel_size_t size) return __real_memscan(p, c, size); } -__FORTIFY_INLINE int memcmp(const void *p, const void *q, __kernel_size_t size) +#define memcmp(p, q, s) __fortify_memcmp(p, q, s) +__FORTIFY_INLINE int __fortify_memcmp(const void *p, const void *q, __kernel_size_t size) { size_t p_size = __builtin_object_size(p, 0); size_t q_size = __builtin_object_size(q, 0); @@ -356,7 +362,8 @@ __FORTIFY_INLINE int memcmp(const void *p, const void *q, __kernel_size_t size) return __underlying_memcmp(p, q, size); } -__FORTIFY_INLINE void *memchr(const void *p, int c, __kernel_size_t size) +#define memchr(p, c, s) __fortify_memchr(p, c, s) +__FORTIFY_INLINE void *__fortify_memchr(const void *p, int c, __kernel_size_t size) { size_t p_size = __builtin_object_size(p, 0); @@ -368,7 +375,8 @@ __FORTIFY_INLINE void *memchr(const void *p, int c, __kernel_size_t size) } void *__real_memchr_inv(const void *s, int c, size_t n) __RENAME(memchr_inv); -__FORTIFY_INLINE void *memchr_inv(const void *p, int c, size_t size) +#define memchr_inv(p, c, s) __fortify_memchr_inv(p, c, s) +__FORTIFY_INLINE void *__fortify_memchr_inv(const void *p, int c, size_t size) { size_t p_size = __builtin_object_size(p, 0); @@ -392,7 +400,8 @@ __FORTIFY_INLINE void *kmemdup(const void *p, size_t size, gfp_t gfp) } /* Defined after fortified strlen to reuse it. */ -__FORTIFY_INLINE char *strcpy(char *p, const char *q) +#define strcpy(p, q) __fortify_strcpy(p, q) +__FORTIFY_INLINE char *__fortify_strcpy(char *p, const char *q) { size_t p_size = __builtin_object_size(p, 1); size_t q_size = __builtin_object_size(q, 1); diff --git a/security/Kconfig b/security/Kconfig index 8f0e675e70a4..509ec61bc54b 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -193,7 +193,7 @@ config FORTIFY_SOURCE depends on ARCH_HAS_FORTIFY_SOURCE # https://bugs.llvm.org/show_bug.cgi?id=50322 # https://bugs.llvm.org/show_bug.cgi?id=41459 - depends on !CONFIG_CC_IS_CLANG + depends on !CONFIG_CC_IS_CLANG || CLANG_VERSION >= 130000 help Detect overflows of buffers in common string and memory functions where the compiler can determine and validate the buffer sizes. -- 2.30.2
next prev parent reply other threads:[~2021-07-27 21:19 UTC|newest] Thread overview: 294+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-27 20:57 [PATCH 00/64] Introduce strict memcpy() bounds checking Kees Cook 2021-07-27 20:57 ` Kees Cook 2021-07-27 20:57 ` [PATCH 01/64] media: omap3isp: Extract struct group for memcpy() region Kees Cook 2021-07-27 20:57 ` Kees Cook 2021-07-28 0:55 ` Gustavo A. R. Silva 2021-07-28 0:55 ` Gustavo A. R. Silva 2021-07-28 1:50 ` Kees Cook 2021-07-28 1:50 ` Kees Cook 2021-07-28 8:59 ` David Sterba 2021-07-28 8:59 ` David Sterba 2021-07-28 9:14 ` Dan Carpenter 2021-07-28 21:37 ` Bart Van Assche 2021-07-28 21:37 ` David Sterba 2021-07-28 21:37 ` David Sterba 2021-07-29 5:56 ` Greg Kroah-Hartman 2021-07-29 8:20 ` Dan Carpenter 2021-07-29 8:20 ` Dan Carpenter 2021-07-30 6:00 ` Kees Cook 2021-07-30 6:00 ` Kees Cook 2021-07-30 8:38 ` David Sterba 2021-07-30 8:38 ` David Sterba 2021-07-30 9:00 ` Dan Carpenter 2021-07-30 16:44 ` Kees Cook 2021-07-30 17:08 ` Nick Desaulniers 2021-07-30 19:18 ` Kees Cook 2021-07-27 20:57 ` [PATCH 02/64] mac80211: Use flex-array for radiotap header bitmap Kees Cook 2021-07-27 20:57 ` Kees Cook 2021-07-28 7:35 ` Dan Carpenter 2021-07-28 7:35 ` Dan Carpenter 2021-07-28 9:23 ` David Sterba 2021-07-28 9:23 ` David Sterba 2021-07-28 21:54 ` Kees Cook 2021-07-29 10:45 ` David Sterba 2021-07-29 10:45 ` David Sterba 2021-07-30 6:06 ` Kees Cook 2021-07-28 21:20 ` Kees Cook 2021-07-28 21:20 ` Kees Cook 2021-07-28 23:14 ` Kees Cook 2021-07-28 23:14 ` Kees Cook 2021-07-28 23:33 ` Kees Cook 2021-07-28 23:33 ` Kees Cook 2021-07-29 8:25 ` Dan Carpenter 2021-07-29 8:25 ` Dan Carpenter 2021-07-27 20:57 ` [PATCH 03/64] rpmsg: glink: Replace strncpy() with strscpy_pad() Kees Cook 2021-07-27 20:57 ` Kees Cook 2021-07-28 2:07 ` Gustavo A. R. Silva 2021-07-28 2:07 ` Gustavo A. R. Silva 2021-07-27 20:57 ` [PATCH 04/64] stddef: Introduce struct_group() helper macro Kees Cook 2021-07-27 20:57 ` Kees Cook 2021-07-28 2:32 ` Gustavo A. R. Silva 2021-07-28 2:32 ` Gustavo A. R. Silva 2021-07-28 10:54 ` Rasmus Villemoes 2021-07-28 10:54 ` Rasmus Villemoes 2021-07-28 21:59 ` Kees Cook 2021-07-28 21:59 ` Kees Cook 2021-07-30 22:19 ` Williams, Dan J 2021-07-31 2:59 ` Kees Cook 2021-07-31 5:24 ` Rasmus Villemoes 2021-07-31 15:10 ` Kees Cook 2021-07-27 20:57 ` [PATCH 05/64] skbuff: Switch structure bounds to struct_group() Kees Cook 2021-07-27 20:57 ` Kees Cook 2021-07-28 3:50 ` Gustavo A. R. Silva 2021-07-28 3:50 ` Gustavo A. R. Silva 2021-07-27 20:57 ` [PATCH 06/64] bnxt_en: Use struct_group_attr() for memcpy() region Kees Cook 2021-07-27 20:57 ` Kees Cook 2021-07-28 1:03 ` Michael Chan 2021-07-28 1:03 ` Michael Chan 2021-07-28 4:45 ` Gustavo A. R. Silva 2021-07-28 4:45 ` Gustavo A. R. Silva 2021-07-27 20:57 ` [PATCH 07/64] staging: rtl8192e: Use struct_group() " Kees Cook 2021-07-27 20:57 ` Kees Cook 2021-07-27 22:30 ` Larry Finger 2021-07-27 22:30 ` Larry Finger 2021-07-28 5:45 ` Greg Kroah-Hartman 2021-07-28 5:45 ` Greg Kroah-Hartman 2021-07-27 20:57 ` [PATCH 08/64] staging: rtl8192u: " Kees Cook 2021-07-27 20:57 ` Kees Cook 2021-07-28 5:45 ` Greg Kroah-Hartman 2021-07-28 5:45 ` Greg Kroah-Hartman 2021-07-27 20:58 ` [PATCH 09/64] staging: rtl8723bs: Avoid field-overflowing memcpy() Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 5:46 ` Greg Kroah-Hartman 2021-07-28 5:46 ` Greg Kroah-Hartman 2021-07-27 20:58 ` [PATCH 10/64] lib80211: Use struct_group() for memcpy() region Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 5:52 ` Greg Kroah-Hartman 2021-07-28 5:52 ` Greg Kroah-Hartman 2021-08-13 8:04 ` Johannes Berg 2021-08-13 15:49 ` Kees Cook 2021-08-13 19:44 ` Johannes Berg 2021-07-27 20:58 ` [PATCH 11/64] net/mlx5e: Avoid field-overflowing memcpy() Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 12/64] mwl8k: Use struct_group() for memcpy() region Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 13/64] libertas: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 14/64] libertas_tf: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 15/64] ipw2x00: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 18:55 ` Stanislav Yakovlev 2021-07-28 18:55 ` Stanislav Yakovlev 2021-07-27 20:58 ` [PATCH 16/64] thermal: intel: int340x_thermal: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 17/64] iommu/amd: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 18/64] cxgb3: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 19/64] ip: Use struct_group() for memcpy() regions Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 5:55 ` Greg Kroah-Hartman 2021-07-28 5:55 ` Greg Kroah-Hartman 2021-07-28 6:14 ` Gustavo A. R. Silva 2021-07-28 6:14 ` Gustavo A. R. Silva 2021-07-28 6:19 ` Greg Kroah-Hartman 2021-07-28 6:19 ` Greg Kroah-Hartman 2021-07-28 6:31 ` Gustavo A. R. Silva 2021-07-28 6:31 ` Gustavo A. R. Silva 2021-07-28 6:37 ` Gustavo A. R. Silva 2021-07-28 6:37 ` Gustavo A. R. Silva 2021-07-28 6:41 ` Greg Kroah-Hartman 2021-07-28 6:41 ` Greg Kroah-Hartman 2021-07-28 21:01 ` Kees Cook 2021-07-28 21:01 ` Kees Cook 2021-07-29 1:59 ` Bart Van Assche 2021-07-29 1:59 ` Bart Van Assche 2021-07-27 20:58 ` [PATCH 20/64] intersil: Use struct_group() for memcpy() region Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 21/64] cxgb4: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 22/64] bnx2x: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 23/64] drm/amd/pm: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-30 2:07 ` Alex Deucher 2021-07-30 2:07 ` Alex Deucher 2021-07-27 20:58 ` [PATCH 24/64] staging: wlan-ng: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 5:45 ` Greg Kroah-Hartman 2021-07-28 5:45 ` Greg Kroah-Hartman 2021-07-27 20:58 ` [PATCH 25/64] drm/mga/mga_ioc32: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 5:56 ` Greg Kroah-Hartman 2021-07-28 5:56 ` Greg Kroah-Hartman 2021-07-29 12:11 ` Daniel Vetter 2021-07-31 4:20 ` Kees Cook 2021-07-27 20:58 ` [PATCH 26/64] net/mlx5e: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 27/64] HID: cp2112: " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 28/64] compiler_types.h: Remove __compiletime_object_size() Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 29/64] lib/string: Move helper functions out of string.c Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 30/64] fortify: Move remaining fortify helpers into fortify-string.h Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 31/64] fortify: Explicitly disable Clang support Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 21:18 ` Nathan Chancellor 2021-07-27 21:18 ` Nathan Chancellor 2021-07-27 21:47 ` Kees Cook 2021-07-27 21:47 ` Kees Cook 2021-07-27 20:58 ` [PATCH 32/64] fortify: Add compile-time FORTIFY_SOURCE tests Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 33/64] lib: Introduce CONFIG_TEST_MEMCPY Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 23:31 ` Bart Van Assche 2021-07-27 23:31 ` Bart Van Assche 2021-07-27 23:33 ` Randy Dunlap 2021-07-27 23:33 ` Randy Dunlap 2021-07-28 1:30 ` Kees Cook 2021-07-28 1:30 ` Kees Cook 2021-07-27 20:58 ` [PATCH 34/64] fortify: Detect struct member overflows in memcpy() at compile-time Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 22:43 ` Nick Desaulniers 2021-07-27 22:43 ` Nick Desaulniers 2021-07-28 1:47 ` Kees Cook 2021-07-28 1:47 ` Kees Cook 2021-07-28 0:34 ` kernel test robot 2021-07-28 3:24 ` kernel test robot 2021-07-28 11:19 ` Rasmus Villemoes 2021-07-28 11:19 ` Rasmus Villemoes 2021-07-30 2:39 ` Kees Cook 2021-07-30 2:39 ` Kees Cook 2021-07-28 11:44 ` kernel test robot 2021-07-28 15:22 ` kernel test robot 2021-07-28 22:06 ` kernel test robot 2021-07-27 20:58 ` [PATCH 35/64] fortify: Detect struct member overflows in memmove() " Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-08-02 5:08 ` kernel test robot 2021-07-27 20:58 ` [PATCH 36/64] scsi: ibmvscsi: Avoid multi-field memset() overflow by aiming at srp Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 1:39 ` Martin K. Petersen 2021-07-28 1:39 ` Martin K. Petersen 2021-07-28 18:57 ` Kees Cook 2021-07-28 18:57 ` Kees Cook 2021-07-29 3:35 ` Martin K. Petersen 2021-07-29 3:35 ` Martin K. Petersen 2021-07-30 19:11 ` Tyrel Datwyler 2021-07-30 18:16 ` Tyrel Datwyler 2021-07-27 20:58 ` [PATCH 37/64] string.h: Introduce memset_after() for wiping trailing members/padding Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 38/64] xfrm: Use memset_after() to clear padding Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 39/64] mac80211: Use memset_after() to clear tx status Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-31 15:55 ` Kees Cook 2021-08-13 7:40 ` Johannes Berg 2021-08-13 16:08 ` Kees Cook 2021-08-13 18:19 ` Johannes Berg 2021-08-13 7:41 ` Johannes Berg 2021-07-27 20:58 ` [PATCH 40/64] net: 802: Use memset_after() to clear struct fields Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 41/64] net: dccp: Use memset_after() for TP zeroing Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 42/64] net: qede: Use memset_after() for counters Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-31 16:07 ` Kees Cook 2021-07-27 20:58 ` [PATCH 43/64] ath11k: Use memset_after() for clearing queue descriptors Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 44/64] iw_cxgb4: Use memset_after() for cpl_t5_pass_accept_rpl Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 45/64] intel_th: msu: Use memset_after() for clearing hw header Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 46/64] IB/mthca: Use memset_after() for clearing mpt_entry Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 47/64] btrfs: Use memset_after() to clear end of struct Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 9:42 ` David Sterba 2021-07-28 9:42 ` David Sterba 2021-07-28 21:56 ` Kees Cook 2021-07-29 10:33 ` David Sterba 2021-07-29 10:33 ` David Sterba 2021-07-31 15:25 ` Kees Cook 2021-08-09 11:20 ` David Sterba 2021-07-27 20:58 ` [PATCH 48/64] drbd: Use struct_group() to zero algs Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 21:45 ` Bart Van Assche 2021-07-28 21:45 ` Bart Van Assche 2021-07-30 2:31 ` Kees Cook 2021-07-30 2:31 ` Kees Cook 2021-07-30 2:57 ` Bart Van Assche 2021-07-30 2:57 ` Bart Van Assche 2021-07-30 9:25 ` Lars Ellenberg 2021-07-30 9:25 ` Lars Ellenberg 2021-07-30 15:32 ` Nick Desaulniers 2021-07-27 20:58 ` [PATCH 49/64] cm4000_cs: Use struct_group() to zero struct cm4000_dev region Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 5:48 ` Greg Kroah-Hartman 2021-07-28 5:48 ` Greg Kroah-Hartman 2021-07-27 20:58 ` [PATCH 50/64] KVM: x86: Use struct_group() to zero decode cache Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 51/64] tracing: Use struct_group() to zero struct trace_iterator Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 52/64] dm integrity: Use struct_group() to zero struct journal_sector Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 53/64] HID: roccat: Use struct_group() to zero kone_mouse_event Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 54/64] ipv6: Use struct_group() to zero rt6_info Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-29 18:58 ` Jakub Kicinski 2021-07-29 18:58 ` Jakub Kicinski 2021-07-31 15:01 ` Kees Cook 2021-07-27 20:58 ` [PATCH 55/64] RDMA/mlx5: Use struct_group() to zero struct mlx5_ib_mr Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 56/64] ethtool: stats: Use struct_group() to clear all stats at once Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 57/64] netfilter: conntrack: Use struct_group() to zero struct nf_conn Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 58/64] powerpc: Split memset() to avoid multi-field overflow Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-08-05 11:36 ` Michael Ellerman 2021-07-27 20:58 ` [PATCH 59/64] fortify: Detect struct member overflows in memset() at compile-time Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 2:59 ` kernel test robot 2021-07-28 17:18 ` kernel test robot 2021-07-27 20:58 ` Kees Cook [this message] 2021-07-27 20:58 ` [PATCH 60/64] fortify: Work around Clang inlining bugs Kees Cook 2021-07-27 20:58 ` [PATCH 61/64] Makefile: Enable -Warray-bounds Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 62/64] netlink: Avoid false-positive memcpy() warning Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-28 5:49 ` Greg Kroah-Hartman 2021-07-28 5:49 ` Greg Kroah-Hartman 2021-07-28 11:24 ` Rasmus Villemoes 2021-07-28 11:24 ` Rasmus Villemoes 2021-07-30 1:39 ` Kees Cook 2021-07-30 1:39 ` Kees Cook 2021-07-30 1:41 ` Kees Cook 2021-07-30 1:41 ` Kees Cook 2021-07-27 20:58 ` [PATCH 63/64] iwlwifi: dbg_ini: Split memcpy() to avoid multi-field write Kees Cook 2021-07-27 20:58 ` Kees Cook 2021-07-27 20:58 ` [PATCH 64/64] fortify: Add run-time WARN for cross-field memcpy() Kees Cook 2021-07-27 20:58 ` Kees Cook
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