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UPSTREAM: pid: use checkpoint_restore_ns_capable() for set_tid

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Use the newly introduced capability CAP_CHECKPOINT_RESTORE to allow
using clone3() with set_tid set.

Change-Id: Ifc86c455e500e59a62f9960ba094c4f9973891ff
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/20200719100418.2112740-3-areber@redhat.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: ralph950412 <ralph950412@gmail.com>
Signed-off-by: rsuntk <rissu.ntk@gmail.com>
This commit is contained in:
Adrian Reber
2020-07-19 12:04:12 +02:00
committed by Edwin Moquete
parent 083e987d39
commit 43be7eaf0f
1 changed files with 1 additions and 1 deletions
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2
kernel/pid.c
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@ -202,7 +202,7 @@ struct pid *alloc_pid(struct pid_namespace *ns, pid_t *set_tid,
if (tid != 1 && !tmp->child_reaper)
goto out_free;
retval = -EPERM;
if (!ns_capable(tmp->user_ns, CAP_SYS_ADMIN))
if (!checkpoint_restore_ns_capable(tmp->user_ns))
goto out_free;
set_tid_size--;
}