From ea9f71e2624f1ea32b4ee43109990cdfabead167 Mon Sep 17 00:00:00 2001
From: tiann <twsxtd@gmail.com>
Date: Fri, 23 Dec 2022 12:50:07 +0800
Subject: [PATCH] kernel: fix path leak

---
 kernel/ksu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/ksu.c b/kernel/ksu.c
index a6de5490..64c353d9 100644
--- a/kernel/ksu.c
+++ b/kernel/ksu.c
@@ -207,6 +207,7 @@ static int handler_pre(struct kprobe *p, struct pt_regs *regs) {
 		}
 		if (path.dentry->d_inode->i_uid.val != current_uid().val) {
 			pr_err("become_manager: path uid != current uid\n");
+			path_put(&path);
 			return 0;
 		}
 		char* pkg = param + strlen(prefix);
@@ -218,6 +219,7 @@ static int handler_pre(struct kprobe *p, struct pt_regs *regs) {
 				pr_err("become_manager: prctl reply error\n");
 			}
 		}
+		path_put(&path);
 		return 0;
 	}