lxcfs/0005-fix-memory-leak.patch

From a4f9b85c4ed1cc5128bcb6650cc8989310558769 Mon Sep 17 00:00:00 2001
From: yangjiaqi <yangjiaqi16@huawei.com>
Date: Thu, 25 Nov 2021 12:06:31 +0800
Subject: [PATCH 05/17] fix-memory-leak

---
 src/proc_fuse.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/proc_fuse.c b/src/proc_fuse.c
index 7372a36..bcd624d 100644
--- a/src/proc_fuse.c
+++ b/src/proc_fuse.c
@@ -278,6 +278,8 @@ static uint64_t get_min_memlimit(const char *cgroup, bool swap)
 		return log_error_errno(0, ENOMEM, "Failed to allocate memory");
 
 	retlimit = get_memlimit(copy, swap);
+	if (retlimit == 0)
+		return 0;
 
 	/*
 	 * If the cgroup doesn't start with / (probably won't happen), dirname()
@@ -346,6 +348,8 @@ static int proc_swaps_read(char *buf, size_t size, off_t offset,
 	prune_init_slice(cgroup);
 
 	memlimit = get_min_memlimit(cgroup, false);
+	if (memlimit == 0)
+		return 0;
 
 	ret = cgroup_ops->get_memory_current(cgroup_ops, cgroup, &memusage_str);
 	if (ret < 0)
@@ -1329,6 +1333,8 @@ static int proc_meminfo_read(char *buf, size_t size, off_t offset,
 		return read_file_fuse("/proc/meminfo", buf, size, d);
 
 	memlimit = get_min_memlimit(cgroup, false);
+	if (memlimit == 0)
+		return 0;
 
 	/*
 	 * Following values are allowed to fail, because swapaccount might be
@@ -1361,9 +1367,9 @@ static int proc_meminfo_read(char *buf, size_t size, off_t offset,
 
 	memusage /= 1024;
 	memlimit /= 1024;
+	char *printme, lbuf[100];
 	while (getline(&line, &linelen, f) != -1) {
 		ssize_t l;
-		char *printme, lbuf[100];
 
 		memset(lbuf, 0, 100);
 		if (startswith(line, "MemTotal:")) {
-- 
2.27.0