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authorKees Cook <keescook@chromium.org>2012-02-15 04:48:09 +0400
committerJames Morris <jmorris@namei.org>2012-02-16 03:25:18 +0400
commitbf06189e4d14641c0148bea16e9dd24943862215 (patch)
tree5c62eb24339041baf65b8e42daac42c7a01efc0e /include
parent3ab1aff89477dafb1aaeafe8c8669114a02b7226 (diff)
downloadlinux-bf06189e4d14641c0148bea16e9dd24943862215.tar.xz
Yama: add PR_SET_PTRACER_ANY
For a process to entirely disable Yama ptrace restrictions, it can use the special PR_SET_PTRACER_ANY pid to indicate that any otherwise allowed process may ptrace it. This is stronger than calling PR_SET_PTRACER with pid "1" because it includes processes in external pid namespaces. This is currently needed by the Chrome renderer, since its crash handler (Breakpad) runs external to the renderer's pid namespace. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/prctl.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/prctl.h b/include/linux/prctl.h
index 4d0e5bc5458c..a0413ac3abe8 100644
--- a/include/linux/prctl.h
+++ b/include/linux/prctl.h
@@ -119,5 +119,6 @@
* A value of 0 mean "no process".
*/
#define PR_SET_PTRACER 0x59616d61
+# define PR_SET_PTRACER_ANY ((unsigned long)-1)
#endif /* _LINUX_PRCTL_H */