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| author |   Richard Guy Briggs <rgb@redhat.com> | 2013-12-10 22:10:41 -0500 |
|---|---|---|
| committer |   Eric Paris <eparis@redhat.com> | 2014-03-20 10:11:55 -0400 |
| commit | c92cdeb45eea38515e82187f48c2e4f435fb4e25 (patch) | |
| tree | f3eedc38f7e5b6012d053e6c05ad2df3975f4c08 /kernel/auditsc.c | |
| parent | pid: get pid_t ppid of task in init_pid_ns (diff) | |
| download | linux-dev-c92cdeb45eea38515e82187f48c2e4f435fb4e25.tar.xz linux-dev-c92cdeb45eea38515e82187f48c2e4f435fb4e25.zip | |
audit: convert PPIDs to the inital PID namespace.
sys_getppid() returns the parent pid of the current process in its own pid
namespace. Since audit filters are based in the init pid namespace, a process
could avoid a filter or trigger an unintended one by being in an alternate pid
namespace or log meaningless information.
Switch to task_ppid_nr() for PPIDs to anchor all audit filters in the
init_pid_ns.
(informed by ebiederman's 6c621b7e)
Cc: stable@vger.kernel.org
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Diffstat (limited to 'kernel/auditsc.c')
| -rw-r--r-- | kernel/auditsc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 57bf178ca7d5..a6cf7ab56e61 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -465,7 +465,7 @@ static int audit_filter_rules(struct task_struct *tsk, case AUDIT_PPID: if (ctx) { if (!ctx->ppid) - ctx->ppid = sys_getppid(); + ctx->ppid = task_ppid_nr(tsk); result = audit_comparator(ctx->ppid, f->op, f->val); } break; |