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Mostafa Saleh
61b38f7591
Add a new Kconfig CONFIG_UBSAN_KVM_EL2 for KVM which enables UBSAN for EL2 code (in protected/nvhe/hvhe) modes. This will re-use the same checks enabled for the kernel for the hypervisor. The only difference is that for EL2 it always emits a "brk" instead of implementing hooks as the hypervisor can't print reports. The KVM code will re-use the same code for the kernel "report_ubsan_failure()" so #ifdefs are changed to also have this code for CONFIG_UBSAN_KVM_EL2 Signed-off-by: Mostafa Saleh <[email protected]> Reviewed-by: Kees Cook <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Marc Zyngier <[email protected]>
15 lines
302 B
C
15 lines
302 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_UBSAN_H
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#define _LINUX_UBSAN_H
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#if defined(CONFIG_UBSAN_TRAP) || defined(CONFIG_UBSAN_KVM_EL2)
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const char *report_ubsan_failure(u32 check_type);
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#else
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static inline const char *report_ubsan_failure(u32 check_type)
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{
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return NULL;
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}
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#endif
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#endif
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