[PATCH 6.6 05/26] ARM: 9351/1: fault: Add "cut here" line for prefetch aborts
Greg Kroah-Hartman
gregkh at linuxfoundation.org
Thu Apr 3 08:20:26 PDT 2025
6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kees Cook <keescook at 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 at huawei.com>
Cc: Ben Hutchings <ben at decadent.org.uk>
Cc: linux-arm-kernel at lists.infradead.org
Acked-by: Ard Biesheuvel <ardb at kernel.org>
Signed-off-by: Kees Cook <keescook at chromium.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh at 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
@@ -563,6 +563,7 @@ 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);
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