From: Andrey Konovalov <andreyknvl@google.com> To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Mark Rutland <mark.rutland@arm.com>, Robin Murphy <robin.murphy@arm.com>, Al Viro <viro@zeniv.linux.org.uk>, Andrey Konovalov <andreyknvl@google.com>, Kees Cook <keescook@chromium.org>, Kate Stewart <kstewart@linuxfoundation.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Andrew Morton <akpm@linux-foundation.org>, Ingo Molnar <mingo@kernel.org>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, Shuah Khan <shuah@kernel.org>, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Dmitry Vyukov <dvyukov@google.com>, Kostya Serebryany <kcc@google.com>, Evgeniy Stepanov <eugenis@google.com>, Lee Smith <Lee.Smith@arm.com>, Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>, Jacob Bramley <Jacob.Bramley@arm.com>, Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>, Chintan Pandya <cpandya@codeaurora.org> Subject: [PATCH v4 2/7] uaccess: add untagged_addr definition for other arches Date: Wed, 20 Jun 2018 17:24:21 +0200 [thread overview] Message-ID: <a937551f03c4617aa400fb75130627df7ed09506.1529507994.git.andreyknvl@google.com> (raw) In-Reply-To: <cover.1529507994.git.andreyknvl@google.com> To allow arm64 syscalls accept tagged pointers from userspace, we must untag them when they are passed to the kernel. Since untagging is done in generic parts of the kernel (like the mm subsystem), the untagged_addr macro should be defined for all architectures. Define it as a noop for other architectures besides arm64. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> --- include/linux/uaccess.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index efe79c1cdd47..c045b4eff95e 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -13,6 +13,10 @@ #include <asm/uaccess.h> +#ifndef untagged_addr +#define untagged_addr(addr) addr +#endif + /* * Architectures should provide two primitives (raw_copy_{to,from}_user()) * and get rid of their private instances of copy_{to,from}_user() and -- 2.18.0.rc1.244.gcf134e6275-goog
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From: Andrey Konovalov <andreyknvl@google.com> To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Mark Rutland <mark.rutland@arm.com>, Robin Murphy <robin.murphy@arm.com>, Al Viro <viro@zeniv.linux.org.uk>, Andrey Konovalov <andreyknvl@google.com>, Kees Cook <keescook@chromium.org>, Kate Stewart <kstewart@linuxfoundation.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Andrew Morton <akpm@linux-foundation.org>, Ingo Molnar <mingo@kernel.org>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, Shuah Khan <shuah@kernel.org>, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Dmitry Vyukov <dvyukov@google.com>, Kostya Serebryany <kcc@google.com>, Evgeniy Stepanov <eugenis@google.com>, Lee Smith <Lee.Smith@arm.com>, Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>, Jacob Bramley <Jacob.Bramley@arm.com>, Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>, Chintan Pandya <cpandya@codeaurora.org> Subject: [PATCH v4 2/7] uaccess: add untagged_addr definition for other arches Date: Wed, 20 Jun 2018 17:24:21 +0200 [thread overview] Message-ID: <a937551f03c4617aa400fb75130627df7ed09506.1529507994.git.andreyknvl@google.com> (raw) In-Reply-To: <cover.1529507994.git.andreyknvl@google.com> To allow arm64 syscalls accept tagged pointers from userspace, we must untag them when they are passed to the kernel. Since untagging is done in generic parts of the kernel (like the mm subsystem), the untagged_addr macro should be defined for all architectures. Define it as a noop for other architectures besides arm64. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> --- include/linux/uaccess.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index efe79c1cdd47..c045b4eff95e 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -13,6 +13,10 @@ #include <asm/uaccess.h> +#ifndef untagged_addr +#define untagged_addr(addr) addr +#endif + /* * Architectures should provide two primitives (raw_copy_{to,from}_user()) * and get rid of their private instances of copy_{to,from}_user() and -- 2.18.0.rc1.244.gcf134e6275-goog -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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From: andreyknvl at google.com (Andrey Konovalov) Subject: [PATCH v4 2/7] uaccess: add untagged_addr definition for other arches Date: Wed, 20 Jun 2018 17:24:21 +0200 [thread overview] Message-ID: <a937551f03c4617aa400fb75130627df7ed09506.1529507994.git.andreyknvl@google.com> (raw) In-Reply-To: <cover.1529507994.git.andreyknvl@google.com> To allow arm64 syscalls accept tagged pointers from userspace, we must untag them when they are passed to the kernel. Since untagging is done in generic parts of the kernel (like the mm subsystem), the untagged_addr macro should be defined for all architectures. Define it as a noop for other architectures besides arm64. Signed-off-by: Andrey Konovalov <andreyknvl at google.com> --- include/linux/uaccess.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index efe79c1cdd47..c045b4eff95e 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -13,6 +13,10 @@ #include <asm/uaccess.h> +#ifndef untagged_addr +#define untagged_addr(addr) addr +#endif + /* * Architectures should provide two primitives (raw_copy_{to,from}_user()) * and get rid of their private instances of copy_{to,from}_user() and -- 2.18.0.rc1.244.gcf134e6275-goog -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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From: andreyknvl@google.com (Andrey Konovalov) Subject: [PATCH v4 2/7] uaccess: add untagged_addr definition for other arches Date: Wed, 20 Jun 2018 17:24:21 +0200 [thread overview] Message-ID: <a937551f03c4617aa400fb75130627df7ed09506.1529507994.git.andreyknvl@google.com> (raw) Message-ID: <20180620152421.lTV6kerxbg0fXnLTMaayhBWwSWpw1S8OxNoa-kx14lk@z> (raw) In-Reply-To: <cover.1529507994.git.andreyknvl@google.com> To allow arm64 syscalls accept tagged pointers from userspace, we must untag them when they are passed to the kernel. Since untagging is done in generic parts of the kernel (like the mm subsystem), the untagged_addr macro should be defined for all architectures. Define it as a noop for other architectures besides arm64. Signed-off-by: Andrey Konovalov <andreyknvl at google.com> --- include/linux/uaccess.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index efe79c1cdd47..c045b4eff95e 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -13,6 +13,10 @@ #include <asm/uaccess.h> +#ifndef untagged_addr +#define untagged_addr(addr) addr +#endif + /* * Architectures should provide two primitives (raw_copy_{to,from}_user()) * and get rid of their private instances of copy_{to,from}_user() and -- 2.18.0.rc1.244.gcf134e6275-goog -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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From: andreyknvl@google.com (Andrey Konovalov) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 2/7] uaccess: add untagged_addr definition for other arches Date: Wed, 20 Jun 2018 17:24:21 +0200 [thread overview] Message-ID: <a937551f03c4617aa400fb75130627df7ed09506.1529507994.git.andreyknvl@google.com> (raw) In-Reply-To: <cover.1529507994.git.andreyknvl@google.com> To allow arm64 syscalls accept tagged pointers from userspace, we must untag them when they are passed to the kernel. Since untagging is done in generic parts of the kernel (like the mm subsystem), the untagged_addr macro should be defined for all architectures. Define it as a noop for other architectures besides arm64. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> --- include/linux/uaccess.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index efe79c1cdd47..c045b4eff95e 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -13,6 +13,10 @@ #include <asm/uaccess.h> +#ifndef untagged_addr +#define untagged_addr(addr) addr +#endif + /* * Architectures should provide two primitives (raw_copy_{to,from}_user()) * and get rid of their private instances of copy_{to,from}_user() and -- 2.18.0.rc1.244.gcf134e6275-goog
next prev parent reply other threads:[~2018-06-20 15:24 UTC|newest] Thread overview: 195+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-06-20 15:24 [PATCH v4 0/7] arm64: untag user pointers passed to the kernel Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` andreyknvl 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` [PATCH v4 1/7] arm64: add type casts to untagged_addr macro Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` andreyknvl 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov [this message] 2018-06-20 15:24 ` [PATCH v4 2/7] uaccess: add untagged_addr definition for other arches Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` andreyknvl 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` [PATCH v4 3/7] arm64: untag user addresses in access_ok and __uaccess_mask_ptr Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` andreyknvl 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` [PATCH v4 4/7] mm, arm64: untag user addresses in mm/gup.c Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` andreyknvl 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` [PATCH v4 5/7] lib, arm64: untag addrs passed to strncpy_from_user and strnlen_user Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` andreyknvl 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` [PATCH v4 6/7] arm64: update Documentation/arm64/tagged-pointers.txt Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` andreyknvl 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` [PATCH v4 7/7] selftests, arm64: add a selftest for passing tagged pointers to kernel Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` Andrey Konovalov 2018-06-20 15:24 ` andreyknvl 2018-06-20 15:24 ` Andrey Konovalov 2018-06-26 12:47 ` [PATCH v4 0/7] arm64: untag user pointers passed to the kernel Andrey Konovalov 2018-06-26 12:47 ` Andrey Konovalov 2018-06-26 12:47 ` Andrey Konovalov 2018-06-26 12:47 ` andreyknvl 2018-06-26 12:47 ` Andrey Konovalov 2018-06-26 17:29 ` Catalin Marinas 2018-06-26 17:29 ` Catalin Marinas 2018-06-26 17:29 ` Catalin Marinas 2018-06-26 17:29 ` Catalin Marinas 2018-06-26 17:29 ` catalin.marinas 2018-06-26 17:29 ` Catalin Marinas 2018-06-27 15:05 ` Andrey Konovalov 2018-06-27 15:05 ` Andrey Konovalov 2018-06-27 15:05 ` Andrey Konovalov 2018-06-27 15:05 ` Andrey Konovalov 2018-06-27 15:05 ` andreyknvl 2018-06-27 15:05 ` Andrey Konovalov 2018-06-27 15:08 ` Ramana Radhakrishnan 2018-06-27 15:08 ` Ramana Radhakrishnan 2018-06-27 15:08 ` Ramana Radhakrishnan 2018-06-27 15:08 ` Ramana Radhakrishnan 2018-06-27 15:08 ` Ramana Radhakrishnan 2018-06-27 15:08 ` ramana.radhakrishnan 2018-06-27 15:08 ` Ramana Radhakrishnan 2018-06-27 17:17 ` Catalin Marinas 2018-06-27 17:17 ` Catalin Marinas 2018-06-27 17:17 ` Catalin Marinas 2018-06-27 17:17 ` Catalin Marinas 2018-06-27 17:17 ` Catalin Marinas 2018-06-27 17:17 ` catalin.marinas 2018-06-27 17:17 ` Catalin Marinas 2018-06-28 6:17 ` Luc Van Oostenryck 2018-06-28 6:17 ` Luc Van Oostenryck 2018-06-28 6:17 ` Luc Van Oostenryck 2018-06-28 6:17 ` Luc Van Oostenryck 2018-06-28 6:17 ` Luc Van Oostenryck 2018-06-28 6:17 ` luc.vanoostenryck 2018-06-28 6:17 ` Luc Van Oostenryck 2018-06-28 10:27 ` Catalin Marinas 2018-06-28 10:27 ` Catalin Marinas 2018-06-28 10:27 ` Catalin Marinas 2018-06-28 10:27 ` Catalin Marinas 2018-06-28 10:27 ` Catalin Marinas 2018-06-28 10:27 ` catalin.marinas 2018-06-28 10:27 ` Catalin Marinas 2018-06-28 10:46 ` Luc Van Oostenryck 2018-06-28 10:46 ` Luc Van Oostenryck 2018-06-28 10:46 ` Luc Van Oostenryck 2018-06-28 10:46 ` Luc Van Oostenryck 2018-06-28 10:46 ` Luc Van Oostenryck 2018-06-28 10:46 ` luc.vanoostenryck 2018-06-28 10:46 ` Luc Van Oostenryck 2018-06-28 14:48 ` Catalin Marinas 2018-06-28 14:48 ` Catalin Marinas 2018-06-28 14:48 ` Catalin Marinas 2018-06-28 14:48 ` Catalin Marinas 2018-06-28 14:48 ` Catalin Marinas 2018-06-28 14:48 ` catalin.marinas 2018-06-28 14:48 ` Catalin Marinas 2018-06-28 15:28 ` Luc Van Oostenryck 2018-06-28 15:28 ` Luc Van Oostenryck 2018-06-28 15:28 ` Luc Van Oostenryck 2018-06-28 15:28 ` Luc Van Oostenryck 2018-06-28 15:28 ` Luc Van Oostenryck 2018-06-28 15:28 ` luc.vanoostenryck 2018-06-28 15:28 ` Luc Van Oostenryck 2018-06-29 15:27 ` David Laight 2018-06-29 15:27 ` David Laight 2018-06-29 15:27 ` David Laight 2018-06-29 15:27 ` David Laight 2018-06-29 15:27 ` David Laight 2018-06-29 15:27 ` David.Laight 2018-06-29 15:27 ` David Laight 2018-06-28 23:21 ` [PATCH] sparse: stricter warning for explicit cast to ulong Luc Van Oostenryck 2018-06-28 23:21 ` Luc Van Oostenryck 2018-06-28 23:21 ` Luc Van Oostenryck 2018-06-28 23:21 ` Luc Van Oostenryck 2018-06-28 23:21 ` luc.vanoostenryck 2018-06-28 23:21 ` Luc Van Oostenryck 2018-06-28 23:21 ` Luc Van Oostenryck 2018-06-28 19:30 ` [PATCH v4 0/7] arm64: untag user pointers passed to the kernel Andrey Konovalov 2018-06-28 19:30 ` Andrey Konovalov 2018-06-28 19:30 ` Andrey Konovalov 2018-06-28 19:30 ` Andrey Konovalov 2018-06-28 19:30 ` andreyknvl 2018-06-28 19:30 ` Andrey Konovalov 2018-06-29 15:19 ` Andrey Konovalov 2018-06-29 15:19 ` Andrey Konovalov 2018-06-29 15:19 ` Andrey Konovalov 2018-06-29 15:19 ` Andrey Konovalov 2018-06-29 15:19 ` andreyknvl 2018-06-29 15:19 ` Andrey Konovalov 2018-06-29 15:20 ` Andrey Konovalov 2018-06-29 15:20 ` Andrey Konovalov 2018-06-29 15:20 ` Andrey Konovalov 2018-06-29 15:20 ` Andrey Konovalov 2018-06-29 15:20 ` andreyknvl 2018-06-29 15:20 ` Andrey Konovalov 2018-07-16 11:25 ` Andrey Konovalov 2018-07-16 11:25 ` Andrey Konovalov 2018-07-16 11:25 ` Andrey Konovalov 2018-07-16 11:25 ` Andrey Konovalov 2018-07-16 11:25 ` andreyknvl 2018-07-16 11:25 ` Andrey Konovalov 2018-07-31 13:23 ` Andrey Konovalov 2018-07-31 13:23 ` Andrey Konovalov 2018-07-31 13:23 ` Andrey Konovalov 2018-07-31 13:23 ` Andrey Konovalov 2018-07-31 13:23 ` andreyknvl 2018-07-31 13:23 ` Andrey Konovalov 2018-08-01 17:42 ` Catalin Marinas 2018-08-01 17:42 ` Catalin Marinas 2018-08-01 17:42 ` Catalin Marinas 2018-08-01 17:42 ` Catalin Marinas 2018-08-01 17:42 ` catalin.marinas 2018-08-01 17:42 ` Catalin Marinas 2018-08-02 15:00 ` Andrey Konovalov 2018-08-02 15:00 ` Andrey Konovalov 2018-08-02 15:00 ` Andrey Konovalov 2018-08-02 15:00 ` Andrey Konovalov 2018-08-02 15:00 ` andreyknvl 2018-08-02 15:00 ` Andrey Konovalov 2018-08-03 14:59 ` Andrey Konovalov 2018-08-03 14:59 ` Andrey Konovalov 2018-08-03 14:59 ` Andrey Konovalov 2018-08-03 14:59 ` Andrey Konovalov 2018-08-03 14:59 ` andreyknvl 2018-08-03 14:59 ` Andrey Konovalov 2018-08-03 15:09 ` Greg Kroah-Hartman 2018-08-03 15:09 ` Greg Kroah-Hartman 2018-08-03 15:09 ` Greg Kroah-Hartman 2018-08-03 15:09 ` Greg Kroah-Hartman 2018-08-03 15:09 ` gregkh 2018-08-03 15:09 ` Greg Kroah-Hartman 2018-08-03 16:43 ` Matthew Wilcox 2018-08-03 16:43 ` Matthew Wilcox 2018-08-03 16:43 ` Matthew Wilcox 2018-08-03 16:43 ` Matthew Wilcox 2018-08-03 16:43 ` willy 2018-08-03 16:43 ` Matthew Wilcox 2018-08-03 16:54 ` Andrey Konovalov 2018-08-03 16:54 ` Andrey Konovalov 2018-08-03 16:54 ` Andrey Konovalov 2018-08-03 16:54 ` Andrey Konovalov 2018-08-03 16:54 ` andreyknvl 2018-08-03 16:54 ` Andrey Konovalov 2018-08-06 19:12 ` Luc Van Oostenryck 2018-08-06 19:12 ` Luc Van Oostenryck 2018-08-06 19:12 ` Luc Van Oostenryck 2018-08-06 19:12 ` Luc Van Oostenryck 2018-08-06 19:12 ` luc.vanoostenryck 2018-08-06 19:12 ` Luc Van Oostenryck
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