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ipc: Use the same namespace to modify and validate

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In the 1f5c135ee5 ("ipc: Store ipc sysctls in the ipc namespace") I
missed that in addition to the modification of sem_ctls[3], the change
is validated. This validation must occur in the same namespace.

Link: https://lore.kernel.org/lkml/875ymnvryb.fsf@email.froward.int.ebiederm.org/
Fixes: 1f5c135ee5 ("ipc: Store ipc sysctls in the ipc namespace")
Signed-off-by: Alexey Gladkov <legion@kernel.org>
Link: https://lkml.kernel.org/r/b3cb9a25cce6becbef77186bc1216071a08a969b.1651584847.git.legion@kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Alexey Gladkov 2022-05-03 15:39:54 +02:00 committed by Eric W. Biederman
parent 1f5c135ee5
commit def7343ff0
1 changed files with 1 additions and 1 deletions
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ipc/ipc_sysctl.c
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@ -68,7 +68,7 @@ static int proc_ipc_sem_dointvec(struct ctl_table *table, int write,
ret = proc_dointvec(table, write, buffer, lenp, ppos);
if (!ret)
ret = sem_check_semmni(current->nsproxy->ipc_ns);
ret = sem_check_semmni(ns);
/*
* Reset the semmni value if an error happens.