From 32b3b01083ce4e7d8df4200ecb2ef21e4a2763b7 Mon Sep 17 00:00:00 2001
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Mon, 7 Oct 2024 10:53:18 +0300
Subject: [PATCH] ptrace(PT_VM_ENTRY): report max protection

(cherry picked from commit e90b2b7d6c173e27dccdb894bb4e34ad30273e22)
---
 sys/kern/sys_process.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sys/kern/sys_process.c b/sys/kern/sys_process.c
index 647487f86b0..a45d5b06538 100644
--- a/sys/kern/sys_process.c
+++ b/sys/kern/sys_process.c
@@ -37,6 +37,7 @@
 #include <sys/ktr.h>
 #include <sys/limits.h>
 #include <sys/lock.h>
+#include <sys/mman.h>
 #include <sys/mutex.h>
 #include <sys/reg.h>
 #include <sys/syscallsubr.h>
@@ -517,7 +518,8 @@ ptrace_vm_entry(struct thread *td, struct proc *p, struct ptrace_vm_entry *pve)
 		pve->pve_start = entry->start;
 		pve->pve_end = entry->end - 1;
 		pve->pve_offset = entry->offset;
-		pve->pve_prot = entry->protection;
+		pve->pve_prot = entry->protection |
+		    PROT_MAX(entry->max_protection);
 
 		/* Backing object's path needed? */
 		if (pve->pve_pathlen == 0)