From: Stefan Metzmacher <metze@samba.org>
To: linux-cifs@vger.kernel.org, samba-technical@lists.samba.org
Cc: metze@samba.org, Steve French <smfrench@gmail.com>,
Tom Talpey <tom@talpey.com>, Long Li <longli@microsoft.com>,
Namjae Jeon <linkinjeon@kernel.org>
Subject: [PATCH] smb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path
Date: Thu, 18 Sep 2025 22:36:30 +0200 [thread overview]
Message-ID: <20250918203630.1390057-1-metze@samba.org> (raw)
During tests of another unrelated patch I was able to trigger this
error: Objects remaining on __kmem_cache_shutdown()
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Fixes: f198186aa9bb ("CIFS: SMBD: Establish SMB Direct connection")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
---
fs/smb/client/smbdirect.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c
index 001224d31e0c..6480945c2459 100644
--- a/fs/smb/client/smbdirect.c
+++ b/fs/smb/client/smbdirect.c
@@ -1189,8 +1189,10 @@ static int smbd_negotiate(struct smbd_connection *info)
log_rdma_event(INFO, "smbd_post_recv rc=%d iov.addr=0x%llx iov.length=%u iov.lkey=0x%x\n",
rc, response->sge.addr,
response->sge.length, response->sge.lkey);
- if (rc)
+ if (rc) {
+ put_receive_buffer(info, response);
return rc;
+ }
init_completion(&info->negotiate_completion);
info->negotiate_done = false;
--
2.43.0
reply other threads:[~2025-09-18 20:36 UTC|newest]
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