From 7daaeeffb8e837fab408282f793cbe9454670afa Mon Sep 17 00:00:00 2001
From: hujf <952405831@qq.com>
Date: Fri, 4 Jul 2025 10:51:15 +0800
Subject: [PATCH] =?UTF-8?q?fault:=E7=9B=AE=E5=89=8Dsegfault=E6=97=A0?=
 =?UTF-8?q?=E6=B3=95=E5=86=8D=E5=86=85=E6=A0=B8=E6=97=A5=E5=BF=97=E4=B8=AD?=
 =?UTF-8?q?=E6=98=BE=E7=A4=BA=EF=BC=8C=E4=BC=98=E5=8C=96=E8=BE=93=E5=87=BA?=
 =?UTF-8?q?segfault?=
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---
 arch/arm64/mm/fault.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index c650b97675..1e85d0c25a 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -569,6 +569,8 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
 		 * We had some memory, but were unable to successfully fix up
 		 * this page fault.
 		 */
+		pr_alert("User segfault: addr=0x%016lx, esr=0x%08x, pid=%d, comm=%s\n",
+             addr, esr, current->pid, current->comm);
 		arm64_force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)addr,
 				      inf->name);
 	} else if (fault & (VM_FAULT_HWPOISON_LARGE | VM_FAULT_HWPOISON)) {
@@ -585,6 +587,8 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
 		 * Something tried to access memory that isn't in our memory
 		 * map.
 		 */
+		pr_alert("User segfault: addr=0x%016lx, esr=0x%08x, pid=%d, comm=%s\n",
+             addr, esr, current->pid, current->comm);
 		arm64_force_sig_fault(SIGSEGV,
 				      fault == VM_FAULT_BADACCESS ? SEGV_ACCERR : SEGV_MAPERR,
 				      (void __user *)addr,
-- 
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