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seccomp: Use PR_SPEC_FORCE_DISABLE

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commit b849a812f7eb92e96d1c8239b06581b2cfd8b275 upstream

Use PR_SPEC_FORCE_DISABLE in seccomp() because seccomp does not allow to
widen restrictions.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Gleixner 2018-05-04 09:40:03 +02:00 committed by Greg Kroah-Hartman
parent 036608d62a
commit c71def81cd
1 changed files with 1 additions and 1 deletions
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kernel/seccomp.c
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@ -226,7 +226,7 @@ static inline void spec_mitigate(struct task_struct *task,
int state = arch_prctl_spec_ctrl_get(task, which);
if (state > 0 && (state & PR_SPEC_PRCTL))
arch_prctl_spec_ctrl_set(task, which, PR_SPEC_DISABLE);
arch_prctl_spec_ctrl_set(task, which, PR_SPEC_FORCE_DISABLE);
}
static inline void seccomp_assign_mode(struct task_struct *task,