| Message ID | 1512685676-21933-3-git-send-email-me@tobin.cc (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 694968c7523c..1698cd2ef16b 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -377,7 +377,8 @@ kptr_restrict: This toggle indicates whether restrictions are placed on exposing kernel addresses via /proc and other interfaces. -When kptr_restrict is set to (0), the default, there are no restrictions. +When kptr_restrict is set to (0), the default, the address is hashed before +printing. (This is the equivalent to %p.) When kptr_restrict is set to (1), kernel pointers printed using the %pK format specifier will be replaced with 0's unless the user has CAP_SYSLOG
Recently the behaviour of printk specifier %pK was changed. The documentation does not currently mirror this. Update documentation for sysctl kpt_restrict. Reported-by: Alexander Popov <alex.popov@linux.com> Signed-off-by: Tobin C. Harding <me@tobin.cc> --- Documentation/sysctl/kernel.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)