diff options
Diffstat (limited to 'arch/arm64/kernel/signal.c')
| -rw-r--r-- | arch/arm64/kernel/signal.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c index f3af68dc1cf8..bdcaaf091e1e 100644 --- a/arch/arm64/kernel/signal.c +++ b/arch/arm64/kernel/signal.c @@ -749,6 +749,9 @@ static void setup_return(struct pt_regs *regs, struct k_sigaction *ka, regs->pstate |= PSR_BTYPE_C; } + /* TCO (Tag Check Override) always cleared for signal handlers */ + regs->pstate &= ~PSR_TCO_BIT; + if (ka->sa.sa_flags & SA_RESTORER) sigtramp = ka->sa.sa_restorer; else @@ -933,6 +936,12 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, if (thread_flags & _TIF_UPROBE) uprobe_notify_resume(regs); + if (thread_flags & _TIF_MTE_ASYNC_FAULT) { + clear_thread_flag(TIF_MTE_ASYNC_FAULT); + send_sig_fault(SIGSEGV, SEGV_MTEAERR, + (void __user *)NULL, current); + } + if (thread_flags & _TIF_SIGPENDING) do_signal(regs); |