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X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-um" Errors-To: linux-um-bounces+linux-um=archiver.kernel.org@lists.infradead.org From: Omar Sandoval Hi, I hit a case where copy_to_kernel_nofault() will fault (lol): if the destination address is in userspace and x86 Supervisor Mode Access Prevention is enabled. Patch 2 has the details and the fix. Patch 1 renames a helper function so that its use in patch 2 makes more sense. If the rename is too intrusive, I can drop it. Thanks, Omar Omar Sandoval (2): mm: rename copy_from_kernel_nofault_allowed() to copy_kernel_nofault_allowed() mm: make copy_to_kernel_nofault() not fault on user addresses arch/arm/mm/fault.c | 2 +- arch/loongarch/mm/maccess.c | 2 +- arch/mips/mm/maccess.c | 2 +- arch/parisc/lib/memcpy.c | 2 +- arch/powerpc/mm/maccess.c | 2 +- arch/um/kernel/maccess.c | 2 +- arch/x86/mm/maccess.c | 4 ++-- include/linux/uaccess.h | 2 +- mm/maccess.c | 10 ++++++---- 9 files changed, 15 insertions(+), 13 deletions(-) -- 2.46.0