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authorKees Cook <keescook@chromium.org>2018-04-10 16:32:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-11 10:28:35 -0700
commitbc4f2f5469ac2a52affadc4c00c1276d76151a39 (patch)
tree24799573464644e6d6878e82861a3524fb5ca992 /include/linux/kernel.h
parent9c4560e5bbd8c839c8986f79ef536aa07bd77ec7 (diff)
downloadlwn-bc4f2f5469ac2a52affadc4c00c1276d76151a39.tar.gz
lwn-bc4f2f5469ac2a52affadc4c00c1276d76151a39.zip
taint: add taint for randstruct
Since the randstruct plugin can intentionally produce extremely unusual kernel structure layouts (even performance pathological ones), some maintainers want to be able to trivially determine if an Oops is coming from a randstruct-built kernel, so as to keep their sanity when debugging. This adds the new flag and initializes taint_mask immediately when built with randstruct. Link: http://lkml.kernel.org/r/1519084390-43867-4-git-send-email-keescook@chromium.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/kernel.h')
-rw-r--r--include/linux/kernel.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 086e8e80f765..6a1eb0b0aad9 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -562,7 +562,8 @@ extern enum system_states {
#define TAINT_SOFTLOCKUP 14
#define TAINT_LIVEPATCH 15
#define TAINT_AUX 16
-#define TAINT_FLAGS_COUNT 17
+#define TAINT_RANDSTRUCT 17
+#define TAINT_FLAGS_COUNT 18
struct taint_flag {
char c_true; /* character printed when tainted */