diff options
| author | Thomas Gleixner <[email protected]> | 2018-06-22 21:20:35 +0200 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2018-06-22 21:20:35 +0200 |
| commit | 7731b8bc94e599c9a79e428f3359ff2c34b7576a (patch) | |
| tree | 879f18ccbe274122f2d4f095b43cbc7f953e0ada /arch/arm/mm/fault.c | |
| parent | 48e315618dc4dc8904182cd221e3d395d5d97005 (diff) | |
| parent | 9ffc59d57228d74809700be6f7ecb1db10292f05 (diff) | |
Merge branch 'linus' into x86/urgent
Required to queue a dependent fix.
Diffstat (limited to 'arch/arm/mm/fault.c')
| -rw-r--r-- | arch/arm/mm/fault.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index b75eada23d0a..84becc911ee3 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -163,6 +163,11 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr, { struct siginfo si; + if (addr > TASK_SIZE) + harden_branch_predictor(); + + clear_siginfo(&si); + #ifdef CONFIG_DEBUG_USER if (((user_debug & UDBG_SEGV) && (sig == SIGSEGV)) || ((user_debug & UDBG_BUS) && (sig == SIGBUS))) { @@ -557,6 +562,7 @@ do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs) inf->name, fsr, addr); show_pte(current->mm, addr); + clear_siginfo(&info); info.si_signo = inf->sig; info.si_errno = 0; info.si_code = inf->code; @@ -589,6 +595,7 @@ do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs) pr_alert("Unhandled prefetch abort: %s (0x%03x) at 0x%08lx\n", inf->name, ifsr, addr); + clear_siginfo(&info); info.si_signo = inf->sig; info.si_errno = 0; info.si_code = inf->code; |