5.4-stable review patch. If anyone has any objections, please let me know.
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From: Kees Cook keescook@chromium.org
commit 8f09b8b4fa58e99cbfd9a650b31d65cdbd8e4276 upstream.
The common pattern in arm is to emit a "8<--- cut here ---" line for faults, but it was missing for do_PrefetchAbort(). Add it.
Cc: Wang Kefeng wangkefeng.wang@huawei.com Cc: Ben Hutchings ben@decadent.org.uk Cc: linux-arm-kernel@lists.infradead.org Acked-by: Ard Biesheuvel ardb@kernel.org Signed-off-by: Kees Cook keescook@chromium.org Signed-off-by: Russell King (Oracle) rmk+kernel@armlinux.org.uk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mm/fault.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -570,6 +570,7 @@ do_PrefetchAbort(unsigned long addr, uns if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs)) return;
+ pr_alert("8<--- cut here ---\n"); pr_alert("Unhandled prefetch abort: %s (0x%03x) at 0x%08lx\n", inf->name, ifsr, addr);