Same as kuap_user_restore(), kuep_unlock() has to be called when
really returning to user, that is in interrupt_exit_user_prepare(),
not in interrupt_exit_prepare().
Fixes: b5efec00b671 ("powerpc/32s: Move KUEP locking/unlocking in C")
Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
---
arch/powerpc/include/asm/interrupt.h | 2 --
arch/powerpc/kernel/interrupt.c | 1 +
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/interrupt.h
b/arch/powerpc/include/asm/interrupt.h
index 44cde2e129b8..c77e8f57ff06 100644
--- a/arch/powerpc/include/asm/interrupt.h
+++ b/arch/powerpc/include/asm/interrupt.h
@@ -153,8 +153,6 @@ static inline void interrupt_enter_prepare(struct pt_regs
*regs, struct interrup
*/
static inline void interrupt_exit_prepare(struct pt_regs *regs, struct
interrupt_state *state)
{
- if (user_mode(regs))
- kuep_unlock();
}
static inline void interrupt_async_enter_prepare(struct pt_regs *regs, struct
interrupt_state *state)
diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c
index 30a596182baa..e0938ba298f2 100644
--- a/arch/powerpc/kernel/interrupt.c
+++ b/arch/powerpc/kernel/interrupt.c
@@ -424,6 +424,7 @@ notrace unsigned long interrupt_exit_user_prepare(struct
pt_regs *regs, unsigned
/* Restore user access locks last */
kuap_user_restore(regs);
+ kuep_unlock();
return ret;
}
--
2.25.0
