From: Thomas Gleixner <redacted>
commit b849a812f7eb92e96d1c8239b06581b2cfd8b275 upstream
Use PR_SPEC_FORCE_DISABLE in seccomp() because seccomp does not allow to
widen restrictions.
Signed-off-by: Thomas Gleixner <redacted>
Signed-off-by: David Woodhouse <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Srivatsa S. Bhat <redacted>
Reviewed-by: Matt Helsley (VMware) <redacted>
Reviewed-by: Alexey Makhalov <redacted>
Reviewed-by: Bo Gan <redacted>
---
kernel/seccomp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index bfb1ee8..f33539f 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -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,