!69 [sync] PR-66: fix file leak in high level API

From: @openeuler-sync-bot 
Reviewed-by: @swf504 
Signed-off-by: @swf504

0008-Fix-file-leak-in-high-level-API.patch

@@ -0,0 +1,43 @@
+From f1e373d9af5b50a0f9a279eb8d8d3a327c9d5ef3 Mon Sep 17 00:00:00 2001
+From: Peri <peri@srdi.org>
+Date: Thu, 11 May 2023 02:38:46 +0100
+Subject: [PATCH] Fix file leak in high level API
+
+Added a secondary check in fuse_lib_unlink() after hide_node()
+to check again under a lock if the (now hidden) file is still open.
+If not then delete it.
+
+This should synchronise fuse_lib_unlink() with fuse_lib_release(),
+when nullpath_ok is set.
+---
+ lib/fuse.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/lib/fuse.c b/lib/fuse.c
+index ff5d91b..5099601 100644
+--- a/lib/fuse.c
++++ b/lib/fuse.c
+@@ -3014,6 +3014,20 @@ static void fuse_lib_unlink(fuse_req_t req, fuse_ino_t parent,
+ 		fuse_prepare_interrupt(f, req, &d);
+ 		if (!f->conf.hard_remove && is_open(f, parent, name)) {
+ 			err = hide_node(f, path, parent, name);
++			if (!err) {
++				/* we have hidden the node so now check again under a lock in case it is not used any more */
++				if (!is_open(f, parent, wnode->name)) {
++					char *unlinkpath;
++
++					/* get the hidden file path, to unlink it */
++					if (try_get_path(f, wnode->nodeid, NULL, &unlinkpath, NULL, false) == 0) {
++						err = fuse_fs_unlink(f->fs, unlinkpath);
++						if (!err)
++							remove_node(f, parent, wnode->name);
++						free(unlinkpath);
++					}
++				}
++			}
+ 		} else {
+ 			err = fuse_fs_unlink(f->fs, path);
+ 			if (!err)
+-- 
+2.33.0
+

fuse3.spec

@@ -2,7 +2,7 @@
 
 Name:    fuse3
 Version: %{fuse3ver}
-Release: 7
+Release: 8
 Summary: User space File System of fuse3
 License: GPL+ and LGPLv2+
 URL:     http://fuse.sf.net
@@ -16,6 +16,7 @@ Patch4:        0004-Use-destroy_req-instead-of-free-to-destroy-fuse_req.patch
 Patch5:        0005-Fix-use-after-free-warning.patch
 Patch6:        0006-Disable-leak-suppression-773.patch
 Patch7:        0007-Fix-memory-leak-in-high-level-API-781.patch
+Patch8:	       0008-Fix-file-leak-in-high-level-API.patch
 
 BuildRequires: libselinux-devel, pkgconfig, systemd-udev, meson, fdupes
 BuildRequires: autoconf, automake, libtool, gettext-devel, ninja-build
@@ -106,6 +107,9 @@ install -p -m 0644 %{SOURCE1} %{buildroot}%{_sysconfdir}
 %{_mandir}/man8/*
 
 %changelog
+* Sat Mar 30 2024 yangyun <yangyun50@huawei.com> -3.10.5-8
+- fix file leak in high level API
+
 * Thu Feb 8 2024 yangyun <yangyun50@huawei.com> -3.10.5-7
 - fix memory leak in high level API