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fix: Linux 6.9+ changed some config options names (#490)
Issue #490 is about retpoline but other options have also changed, as reported by a comment on the issue, this commit fixes these other options: Breno Leitao (10): x86/bugs: Rename CONFIG_GDS_FORCE_MITIGATION => CONFIG_MITIGATION_GDS_FORCE x86/bugs: Rename CONFIG_CPU_IBPB_ENTRY => CONFIG_MITIGATION_IBPB_ENTRY x86/bugs: Rename CONFIG_CALL_DEPTH_TRACKING => CONFIG_MITIGATION_CALL_DEPTH_TRACKING x86/bugs: Rename CONFIG_PAGE_TABLE_ISOLATION => CONFIG_MITIGATION_PAGE_TABLE_ISOLATION x86/bugs: Rename CONFIG_RETPOLINE => CONFIG_MITIGATION_RETPOLINE x86/bugs: Rename CONFIG_SLS => CONFIG_MITIGATION_SLS x86/bugs: Rename CONFIG_CPU_UNRET_ENTRY => CONFIG_MITIGATION_UNRET_ENTRY x86/bugs: Rename CONFIG_CPU_IBRS_ENTRY => CONFIG_MITIGATION_IBRS_ENTRY x86/bugs: Rename CONFIG_CPU_SRSO => CONFIG_MITIGATION_SRSO x86/bugs: Rename CONFIG_RETHUNK => CONFIG_MITIGATION_RETHUNK
This commit is contained in:
Stéphane Lesimple
parent
e806e4bc41
commit
34c6095912
@ -4794,7 +4794,7 @@ check_CVE_2017_5754_linux()
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kpti_can_tell=0
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if [ -n "$opt_config" ]; then
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kpti_can_tell=1
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kpti_support=$(grep -w -e CONFIG_PAGE_TABLE_ISOLATION=y -e CONFIG_KAISER=y -e CONFIG_UNMAP_KERNEL_AT_EL0=y "$opt_config")
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kpti_support=$(grep -E -w -e 'CONFIG_(MITIGATION_)?PAGE_TABLE_ISOLATION=y' -e CONFIG_KAISER=y -e CONFIG_UNMAP_KERNEL_AT_EL0=y "$opt_config")
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if [ -n "$kpti_support" ]; then
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_debug "kpti_support: found option '$kpti_support' in $opt_config"
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fi
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@ -4938,7 +4938,7 @@ check_CVE_2017_5754_linux()
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explain "Your kernel supports PTI but it has been disabled, check \`dmesg\` right after boot to find clues why the system disabled it"
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fi
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else
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explain "If you're using a distro kernel, upgrade your distro to get the latest kernel available. Otherwise, recompile the kernel with the CONFIG_PAGE_TABLE_ISOLATION option (named CONFIG_KAISER for some kernels), or the CONFIG_UNMAP_KERNEL_AT_EL0 option (for ARM64)"
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explain "If you're using a distro kernel, upgrade your distro to get the latest kernel available. Otherwise, recompile the kernel with the CONFIG_(MITIGATION_)PAGE_TABLE_ISOLATION option (named CONFIG_KAISER for some kernels), or the CONFIG_UNMAP_KERNEL_AT_EL0 option (for ARM64)"
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fi
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fi
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else
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@ -4946,7 +4946,7 @@ check_CVE_2017_5754_linux()
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pvulnstatus $cve OK "offline mode: PTI will mitigate the vulnerability if enabled at runtime"
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elif [ "$kpti_can_tell" = 1 ]; then
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pvulnstatus $cve VULN "PTI is needed to mitigate the vulnerability"
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explain "If you're using a distro kernel, upgrade your distro to get the latest kernel available. Otherwise, recompile the kernel with the CONFIG_PAGE_TABLE_ISOLATION option (named CONFIG_KAISER for some kernels), or the CONFIG_UNMAP_KERNEL_AT_EL0 option (for ARM64)"
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explain "If you're using a distro kernel, upgrade your distro to get the latest kernel available. Otherwise, recompile the kernel with the CONFIG_(MITIGATION_)PAGE_TABLE_ISOLATION option (named CONFIG_KAISER for some kernels), or the CONFIG_UNMAP_KERNEL_AT_EL0 option (for ARM64)"
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else
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pvulnstatus $cve UNK "offline mode: not enough information"
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explain "Re-run this script with root privileges, and give it the kernel image (--kernel), the kernel configuration (--config) and the System.map file (--map) corresponding to the kernel you would like to inspect."
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@ -4962,10 +4962,10 @@ check_CVE_2017_5754_linux()
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_explain="Go to https://blog.xenproject.org/2018/01/22/xen-project-spectre-meltdown-faq-jan-22-update/ for more information"
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elif [ "$msg" = "Vulnerable" ]; then
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msg="PTI is needed to mitigate the vulnerability"
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_explain="If you're using a distro kernel, upgrade your distro to get the latest kernel available. Otherwise, recompile the kernel with the CONFIG_PAGE_TABLE_ISOLATION option (named CONFIG_KAISER for some kernels), or the CONFIG_UNMAP_KERNEL_AT_EL0 option (for ARM64)"
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_explain="If you're using a distro kernel, upgrade your distro to get the latest kernel available. Otherwise, recompile the kernel with the CONFIG_(MITIGATION_)PAGE_TABLE_ISOLATION option (named CONFIG_KAISER for some kernels), or the CONFIG_UNMAP_KERNEL_AT_EL0 option (for ARM64)"
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fi
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pvulnstatus $cve "$status" "$msg"
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[ -z "${_explain:-}" ] && [ "$msg" = "Vulnerable" ] && _explain="If you're using a distro kernel, upgrade your distro to get the latest kernel available. Otherwise, recompile the kernel with the CONFIG_PAGE_TABLE_ISOLATION option (named CONFIG_KAISER for some kernels), or the CONFIG_UNMAP_KERNEL_AT_EL0 option (for ARM64)"
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[ -z "${_explain:-}" ] && [ "$msg" = "Vulnerable" ] && _explain="If you're using a distro kernel, upgrade your distro to get the latest kernel available. Otherwise, recompile the kernel with the CONFIG_(MITIGATION_)PAGE_TABLE_ISOLATION option (named CONFIG_KAISER for some kernels), or the CONFIG_UNMAP_KERNEL_AT_EL0 option (for ARM64)"
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[ -n "${_explain:-}" ] && explain "$_explain"
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unset _explain
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fi
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@ -6487,9 +6487,11 @@ check_CVE_2023_20569_linux() {
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_info_nol "* Kernel compiled with SRSO support: "
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if [ -r "$opt_config" ]; then
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if grep -q '^CONFIG_CPU_SRSO=y' "$opt_config"; then
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# CONFIG_CPU_SRSO: Linux < 6.9
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# CONFIG_MITIGATION_SRSO: Linux >= 6.9
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if grep -Eq '^CONFIG_(CPU|MITIGATION)_SRSO=y' "$opt_config"; then
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pstatus green YES
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kernel_srso="CONFIG_CPU_SRSO=y found in kernel config"
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kernel_srso="CONFIG_(CPU|MITIGATION)_SRSO=y found in kernel config"
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else
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pstatus yellow NO "required for safe RET and ibpb_on_vmexit mitigations"
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fi
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@ -6497,10 +6499,10 @@ check_CVE_2023_20569_linux() {
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# https://github.com/torvalds/linux/commit/138bcddb86d8a4f842e4ed6f0585abc9b1a764ff#diff-17bd24a7a7850613cced545790ac30646097e8d6207348c2bd1845f397acb390R2313
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if [ -n "$kernel_err" ]; then
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pstatus yellow UNKNOWN "$kernel_err"
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elif grep -q 'WARNING: kernel not compiled with CPU_SRSO' "$kernel"; then
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elif grep -Eq 'WARNING: kernel not compiled with (CPU|MITIGATION)_SRSO' "$kernel"; then
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# this msg is optimized out at compile time if the option is not enabled, see commit referenced above
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# if it's present, then SRSO is NOT compiled in
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pstatus yellow NO "kernel not compiled with CPU_SRSO"
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pstatus yellow NO "kernel not compiled with (CPU|MITIGATION)_SRSO"
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else
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# if it's not present, then SRSO is compiled in IF kernel_sro==1, otherwise we're just
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# in front of an old kernel that doesn't have the mitigation logic at all
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@ -6515,9 +6517,11 @@ check_CVE_2023_20569_linux() {
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_info_nol "* Kernel compiled with IBPB_ENTRY support: "
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if [ -r "$opt_config" ]; then
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if grep -q '^CONFIG_CPU_IBPB_ENTRY=y' "$opt_config"; then
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# CONFIG_CPU_IBPB_ENTRY: Linux < 6.9
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# CONFIG_MITIGATION_IBPB_ENTRY: Linux >= 6.9
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if grep -Eq '^CONFIG_(CPU|MITIGATION)_IBPB_ENTRY=y' "$opt_config"; then
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pstatus green YES
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kernel_ibpb_entry="CONFIG_CPU_IBPB_ENTRY=y found in kernel config"
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kernel_ibpb_entry="CONFIG_(CPU|MITIGATION)_IBPB_ENTRY=y found in kernel config"
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else
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pstatus yellow NO
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fi
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@ -6525,10 +6529,10 @@ check_CVE_2023_20569_linux() {
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# https://github.com/torvalds/linux/commit/138bcddb86d8a4f842e4ed6f0585abc9b1a764ff#diff-17bd24a7a7850613cced545790ac30646097e8d6207348c2bd1845f397acb390R2325
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if [ -n "$kernel_err" ]; then
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pstatus yellow UNKNOWN "$kernel_err"
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elif grep -q 'WARNING: kernel not compiled with CPU_IBPB_ENTRY' "$kernel"; then
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elif grep -Eq 'WARNING: kernel not compiled with (CPU|MITIGATION)_IBPB_ENTRY' "$kernel"; then
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# this msg is optimized out at compile time if the option is not enabled, see commit referenced above
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# if it's present, then IBPB_ENTRY is NOT compiled in
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pstatus yellow NO "kernel not compiled with CPU_IBPB_ENTRY"
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pstatus yellow NO "kernel not compiled with (CPU|MITIGATION)_IBPB_ENTRY"
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else
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# if it's not present, then IBPB_ENTRY is compiled in IF kernel_sro==1, otherwise we're just
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# in front of an old kernel that doesn't have the mitigation logic at all
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