diff options
| -rw-r--r-- | arch/powerpc/mm/fault.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index e5725fa96a48..5afc1ee55043 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -145,7 +145,17 @@ static noinline int bad_area(struct pt_regs *regs, unsigned long address) static int bad_key_fault_exception(struct pt_regs *regs, unsigned long address, int pkey) { - return __bad_area_nosemaphore(regs, address, SEGV_PKUERR, pkey); + /* + * If we are in kernel mode, bail out with a SEGV, this will + * be caught by the assembly which will restore the non-volatile + * registers before calling bad_page_fault() + */ + if (!user_mode(regs)) + return SIGSEGV; + + _exception_pkey(SIGSEGV, regs, SEGV_PKUERR, address, pkey); + + return 0; } static noinline int bad_access(struct pt_regs *regs, unsigned long address) |