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Merge pull request #44 from speed47/bootimage
feat(kernel): check the BOOT_IMAGE info from cmdline before trying th…
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commit
4aed5589fe
@ -139,6 +139,11 @@ _verbose()
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_echo 2 "$@"
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}
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_debug()
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{
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_echo 3 "(debug) $@"
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}
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is_cpu_vulnerable()
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{
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# param: 1, 2 or 3 (variant)
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@ -428,12 +433,25 @@ if [ "$opt_live" = 1 ]; then
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_info "Checking for vulnerabilities against live running kernel \033[35m"$(uname -s) $(uname -r) $(uname -v) $(uname -m)"\033[0m"
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# try to find the image of the current running kernel
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# first, look for the BOOT_IMAGE hint in the kernel cmdline
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if [ -r /proc/cmdline ] && grep -q 'BOOT_IMAGE=' /proc/cmdline; then
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opt_kernel=$(grep -Eo 'BOOT_IMAGE=[^ ]+' /proc/cmdline | cut -d= -f2)
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_debug "found opt_kernel=$opt_kernel in /proc/cmdline"
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# if we have a dedicated /boot partition, our bootloader might have just called it /
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# so try to prepend /boot and see if we find anything
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[ -e "/boot/$opt_kernel" ] && $opt_kernel="/boot/$opt_kernel"
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_debug "opt_kernel is now $opt_kernel"
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# else, the full path is already there (most probably /boot/something)
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fi
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# if we didn't find a kernel, default to guessing
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if [ ! -e "$opt_kernel" ]; then
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[ -e /boot/vmlinuz-linux ] && opt_kernel=/boot/vmlinuz-linux
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[ -e /boot/vmlinuz-linux-libre ] && opt_kernel=/boot/vmlinuz-linux-libre
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[ -e /boot/vmlinuz-$(uname -r) ] && opt_kernel=/boot/vmlinuz-$(uname -r)
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[ -e /boot/kernel-$( uname -r) ] && opt_kernel=/boot/kernel-$( uname -r)
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[ -e /boot/bzImage-$(uname -r) ] && opt_kernel=/boot/bzImage-$(uname -r)
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[ -e /boot/kernel-genkernel-$(uname -m)-$(uname -r) ] && opt_kernel=/boot/kernel-genkernel-$(uname -m)-$(uname -r)
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fi
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# system.map
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if [ -e /proc/kallsyms ] ; then
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