Messages in this thread Patch in this message | | | From | "Chang S. Bae" <> | Subject | [PATCH V2 06/15] taint: Add taint for insecure | Date | Thu, 31 May 2018 10:58:36 -0700 |
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When adding new feature support, patches need to be incrementally applied and tested with temporal parameters. For such testing (or root-only) purposes, the new flag will serve to tag the kernel taint state properly.
Suggested-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> --- Documentation/sysctl/kernel.txt | 1 + include/linux/kernel.h | 3 ++- kernel/panic.c | 1 + 3 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index eded671d..06c4009 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -992,6 +992,7 @@ ORed together. The letters are seen in "Tainted" line of Oops reports. 32768 (K): The kernel has been live patched. 65536 (X): Auxiliary taint, defined and used by for distros. 131072 (T): The kernel was built with the struct randomization plugin. +262144 (Z): The kernel is running in a known insecure configuration. ============================================================== diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 6a1eb0b..7051415 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -563,7 +563,8 @@ extern enum system_states { #define TAINT_LIVEPATCH 15 #define TAINT_AUX 16 #define TAINT_RANDSTRUCT 17 -#define TAINT_FLAGS_COUNT 18 +#define TAINT_INSECURE 18 +#define TAINT_FLAGS_COUNT 19 struct taint_flag { char c_true; /* character printed when tainted */ diff --git a/kernel/panic.c b/kernel/panic.c index 42e4874..53ea36a 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -327,6 +327,7 @@ const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = { [ TAINT_LIVEPATCH ] = { 'K', ' ', true }, [ TAINT_AUX ] = { 'X', ' ', true }, [ TAINT_RANDSTRUCT ] = { 'T', ' ', true }, + [ TAINT_INSECURE ] = { 'Z', ' ', false }, }; /** -- 2.7.4
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