Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ARM: allow __do_kernel_fault() to report execution of memory faults
Allow __do_kernel_fault() to detect the execution of memory, so we can
provide the same fault message as do_page_fault() would do. This is
required when we split the kernel address fault handling from the
main do_page_fault() code path.
Reviewed-by: Xie Yuanbin <xieyuanbin1@huawei.com>
Tested-by: Xie Yuanbin <xieyuanbin1@huawei.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
+2
+2
arch/arm/mm/fault.c
+2
arch/arm/mm/fault.c
···
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*/
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if (addr < PAGE_SIZE) {
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msg = "NULL pointer dereference";
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+
} else if (is_permission_fault(fsr) && fsr & FSR_LNX_PF) {
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+
msg = "execution of memory";
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} else {
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if (is_translation_fault(fsr) &&
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kfence_handle_page_fault(addr, is_write_fault(fsr), regs))