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UPSTREAM: pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid

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Use the newly introduced capability CAP_CHECKPOINT_RESTORE to allow
writing to ns_last_pid.

Change-Id: I95727c385f136818553260db0e9edfa654f7907e
Signed-off-by: Adrian Reber <areber@redhat.com>
Signed-off-by: Nicolas Viennot <Nicolas.Viennot@twosigma.com>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/20200719100418.2112740-4-areber@redhat.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: ralph950412 <ralph950412@gmail.com>
This commit is contained in:
Adrian Reber 2020-07-19 12:04:13 +02:00 • committed by ralph950412
commit 63b4832326
1 changed files with 1 additions and 1 deletions
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2
kernel/pid_namespace.c
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@ -270,7 +270,7 @@ 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;
/*