diff options
Diffstat (limited to 'Documentation/sysctl/kernel.txt')
| -rw-r--r-- | Documentation/sysctl/kernel.txt | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 209e1584c3dc..11d5ceda5bb0 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -34,6 +34,7 @@ show up in /proc/sys/kernel: - hotplug - java-appletviewer [ binfmt_java, obsolete ] - java-interpreter [ binfmt_java, obsolete ] +- kptr_restrict - kstack_depth_to_print [ X86 only ] - l2cr [ PPC only ] - modprobe ==> Documentation/debugging-modules.txt @@ -219,7 +220,7 @@ dmesg_restrict: This toggle indicates whether unprivileged users are prevented from using dmesg(8) to view messages from the kernel's log buffer. When dmesg_restrict is set to (0) there are no restrictions. When -dmesg_restrict is set set to (1), users must have CAP_SYS_ADMIN to use +dmesg_restrict is set set to (1), users must have CAP_SYSLOG to use dmesg(8). The kernel config option CONFIG_SECURITY_DMESG_RESTRICT sets the default @@ -261,6 +262,19 @@ This flag controls the L2 cache of G3 processor boards. If ============================================================== +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), there are no restrictions. When +kptr_restrict is set to (1), the default, kernel pointers +printed using the %pK format specifier will be replaced with 0's +unless the user has CAP_SYSLOG. When kptr_restrict is set to +(2), kernel pointers printed using %pK will be replaced with 0's +regardless of privileges. + +============================================================== + kstack_depth_to_print: (X86 only) Controls the number of words to print when dumping the raw |