From: Bharath SM <bharathsm.hsk@gmail.com>
To: linux-cifs@vger.kernel.org, smfrench@gmail.com
Cc: Bharath SM <bharathsm@microsoft.com>
Subject: [PATCH 7/7] smb: Fix memory allocation and ACL handling in cifs_xattr_set
Date: Thu, 19 Jun 2025 21:05:38 +0530 [thread overview]
Message-ID: <20250619153538.1600500-7-bharathsm@microsoft.com> (raw)
In-Reply-To: <20250619153538.1600500-1-bharathsm@microsoft.com>
If set_acl is NULL, then there is a chance that memory allocated
for pacl memory doesn't get freed. Ensure proper memory deallocation
for pacl in `cifs_xattr_set` to avoid leaks.
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
---
fs/smb/client/xattr.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/smb/client/xattr.c b/fs/smb/client/xattr.c
index b88fa04f5792..4d2b70020776 100644
--- a/fs/smb/client/xattr.c
+++ b/fs/smb/client/xattr.c
@@ -174,6 +174,7 @@ static int cifs_xattr_set(const struct xattr_handler *handler,
pacl = kmalloc(size, GFP_KERNEL);
if (!pacl) {
rc = -ENOMEM;
+ goto out;
} else {
memcpy(pacl, value, size);
if (pTcon->ses->server->ops->set_acl) {
@@ -211,8 +212,8 @@ static int cifs_xattr_set(const struct xattr_handler *handler,
}
if (rc == 0) /* force revalidate of the inode */
CIFS_I(inode)->time = 0;
- kfree(pacl);
}
+ kfree(pacl);
break;
}
}
--
2.43.0
next prev parent reply other threads:[~2025-06-19 15:36 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-19 15:35 [PATCH 1/7] smb: Use loff_t for directory position in cached_dirents Bharath SM
2025-06-19 15:35 ` [PATCH 2/7] smb: minor fix to use sizeof to initialize flags_string buffer Bharath SM
2025-06-19 16:06 ` Paulo Alcantara
2025-06-20 9:36 ` Shyam Prasad N
2025-06-19 15:35 ` [PATCH 3/7] smb: minor fix to use SMB2_NTLMV2_SESSKEY_SIZE for auth_key size Bharath SM
2025-06-19 16:08 ` Paulo Alcantara
2025-06-20 9:44 ` Shyam Prasad N
2025-06-19 15:35 ` [PATCH 4/7] smb: add NULL check after kzalloc in cifsConvertToUTF16 Bharath SM
2025-06-19 16:24 ` Paulo Alcantara
2025-06-20 15:04 ` Bharath SM
2025-06-20 9:44 ` Shyam Prasad N
2025-06-19 15:35 ` [PATCH 5/7] cifs: minor cleanup to remove unused permission bit macros Bharath SM
2025-06-19 15:35 ` [PATCH 6/7] smb: Fix potential divide-by-zero issue when iface_min_speed is 0 Bharath SM
2025-06-19 16:01 ` Paulo Alcantara
2025-06-20 15:04 ` Bharath SM
2025-06-20 9:49 ` Shyam Prasad N
2025-06-19 15:35 ` Bharath SM [this message]
2025-06-19 15:57 ` [PATCH 7/7] smb: Fix memory allocation and ACL handling in cifs_xattr_set Paulo Alcantara
2025-06-19 16:05 ` [PATCH 1/7] smb: Use loff_t for directory position in cached_dirents Paulo Alcantara
2025-06-20 9:34 ` Shyam Prasad N
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