Patch "samples/bpf: Fix a resource leak" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    samples/bpf: Fix a resource leak

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     samples-bpf-fix-a-resource-leak.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit e289798bfacc5b9fe78f8bb3c960981af101b9bf
Author: Zhu Jun <zhujun2@xxxxxxxxxxxxxxxxxxxx>
Date:   Wed Oct 9 18:41:26 2024 -0700

    samples/bpf: Fix a resource leak
    
    [ Upstream commit f3ef53174b23246fe9bc2bbc2542f3a3856fa1e2 ]
    
    The opened file should be closed in show_sockopts(), otherwise resource
    leak will occur that this problem was discovered by reading code
    
    Signed-off-by: Zhu Jun <zhujun2@xxxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
    Link: https://lore.kernel.org/bpf/20241010014126.2573-1-zhujun2@xxxxxxxxxxxxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/samples/bpf/test_cgrp2_sock.c b/samples/bpf/test_cgrp2_sock.c
index b0811da5a00f3..3f56519a1ccd7 100644
--- a/samples/bpf/test_cgrp2_sock.c
+++ b/samples/bpf/test_cgrp2_sock.c
@@ -174,8 +174,10 @@ static int show_sockopts(int family)
 		return 1;
 	}
 
-	if (get_bind_to_device(sd, name, sizeof(name)) < 0)
+	if (get_bind_to_device(sd, name, sizeof(name)) < 0) {
+		close(sd);
 		return 1;
+	}
 
 	mark = get_somark(sd);
 	prio = get_priority(sd);