aarch64: fatal: Restrict oops-es when in user-mode
User mode is only allowed to induce oopses and stack check failures via software-triggered system fatal exceptions. Signed-off-by: Carlo Caione <ccaione@baylibre.com>
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@ -235,6 +235,17 @@ void z_arm64_do_kernel_oops(z_arch_esf_t *esf)
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/* x8 holds the exception reason */
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unsigned int reason = esf->x8;
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#if defined(CONFIG_USERSPACE)
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/*
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* User mode is only allowed to induce oopses and stack check
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* failures via software-triggered system fatal exceptions.
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*/
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if (((_current->base.user_options & K_USER) != 0) &&
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reason != K_ERR_STACK_CHK_FAIL) {
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reason = K_ERR_KERNEL_OOPS;
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}
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#endif
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z_arm64_fatal_error(reason, esf);
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}
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