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[v6,3/7] pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid

Message ID 20200719100418.2112740-4-areber@redhat.com (mailing list archive)
State New, archived
Headers show
Series capabilities: Introduce CAP_CHECKPOINT_RESTORE | expand

Commit Message

Adrian Reber July 19, 2020, 10:04 a.m. UTC
Use the newly introduced capability CAP_CHECKPOINT_RESTORE to allow
writing to ns_last_pid.

Signed-off-by: Adrian Reber <areber@redhat.com>
Signed-off-by: Nicolas Viennot <Nicolas.Viennot@twosigma.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
 kernel/pid_namespace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 0e5ac162c3a8..ac135bd600eb 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -269,7 +269,7 @@  static int pid_ns_ctl_handler(struct ctl_table *table, int write,
 	struct ctl_table tmp = *table;
 	int ret, next;
-	if (write && !ns_capable(pid_ns->user_ns, CAP_SYS_ADMIN))
+	if (write && !checkpoint_restore_ns_capable(pid_ns->user_ns))
 		return -EPERM;