linux-kernel - Re: [syzbot] [bpf?] memory leak in map

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Message-ID: <tencent_EF9E9E1B6B4BCE1B5A257FBAFFBBD6335F08@qq.com>
Date: Sun, 16 Nov 2025 22:33:21 +0800
From: Edward Adam Davis <eadavis@...com>
To: syzbot+cf08c551fecea9fd1320@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bpf?] memory leak in map_create

#syz test

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 8a129746bd6c..aa0979e8de15 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -1585,7 +1585,8 @@ static int map_create(union bpf_attr *attr, bpfptr_t uattr)
 			goto free_map;
 		}
 	} else if (attr->excl_prog_hash_size) {
-		return -EINVAL;
+		err = -EINVAL;
+		goto free_map;
 	}
 
 	err = security_bpf_map_create(map, attr, token, uattr.is_kernel);