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| author | Konstantin Khlebnikov <khlebnikov@openvz.org> | 2011-03-23 16:42:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-23 19:46:36 -0700 |
| commit | 51e031496d50f87ff519a63cfd4fc2f415f03336 (patch) | |
| tree | 75c177b8aeba82fffb80960eed1c77bb4188c362 /fs/proc | |
| parent | 523fb486bfd94e3a3b16a42bcb21b1959cf14df8 (diff) | |
| download | lwn-51e031496d50f87ff519a63cfd4fc2f415f03336.tar.gz lwn-51e031496d50f87ff519a63cfd4fc2f415f03336.zip | |
proc: hide kernel addresses via %pK in /proc/<pid>/stack
This file is readable for the task owner. Hide kernel addresses from
unprivileged users, leave them function names and offsets.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: Kees Cook <kees.cook@canonical.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/base.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index d49c4b5d2c3e..c3af15e9c070 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -340,7 +340,7 @@ static int proc_pid_stack(struct seq_file *m, struct pid_namespace *ns, save_stack_trace_tsk(task, &trace); for (i = 0; i < trace.nr_entries; i++) { - seq_printf(m, "[<%p>] %pS\n", + seq_printf(m, "[<%pK>] %pS\n", (void *)entries[i], (void *)entries[i]); } kfree(entries); |