kernel: core_hook: fix missed path_put

backslashxx · backslashxx · commit 0050d207e24c · 2025-06-08T17:24:41.000+08:00
make sure to path_put() on all codepaths after kern_path() success

Signed-off-by: backslashxx &lt;118538522+backslashxx@users.noreply.github.com&gt;
diff --git a/kernel/core_hook.c b/kernel/core_hook.c
@@ -536,6 +536,7 @@ static void try_umount(const char *mnt, int flags)
 	}
 
 	if (path.dentry != path.mnt->mnt_root) {
+		path_put(&path);
 		// it is not root mountpoint, maybe umounted by others already.
 		return;
 	}
@@ -545,6 +546,7 @@ static void try_umount(const char *mnt, int flags)
 #else
 	ksu_sys_umount(mnt, flags);
 #endif
+	path_put(&path);
 }
 
 struct mount_entry {

Original file line number	Diff line number	Diff line change
`@@ -536,6 +536,7 @@ static void try_umount(const char *mnt, int flags)`
`536`	`536`	`}`
`537`	`537`
`538`	`538`	`if (path.dentry != path.mnt->mnt_root) {`
	`539`	`+ path_put(&path);`
`539`	`540`	`// it is not root mountpoint, maybe umounted by others already.`
`540`	`541`	`return;`
`541`	`542`	`}`
`@@ -545,6 +546,7 @@ static void try_umount(const char *mnt, int flags)`
`545`	`546`	`#else`
`546`	`547`	`ksu_sys_umount(mnt, flags);`
`547`	`548`	`#endif`
	`549`	`+ path_put(&path);`
`548`	`550`	`}`
`549`	`551`
`550`	`552`	`struct mount_entry {`