* [PATCH] ksmbd: fix an oops in error handling in smb2_open()
@ 2021-07-29 14:15 Dan Carpenter
2021-07-29 22:34 ` Namjae Jeon
0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2021-07-29 14:15 UTC (permalink / raw)
To: Namjae Jeon
Cc: Sergey Senozhatsky, Steve French, Hyunchul Lee, Ronnie Sahlberg,
linux-cifs, kernel-janitors
If smb2_get_name() then "name" is an error pointer. In the clean up
code, we try to kfree() it and that will lead to an Oops. Set it to
NULL instead.
Fixes: e2f34481b24d ("cifsd: add server-side procedures for SMB3")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
fs/ksmbd/smb2pdu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index c1a594599431..7e3cdd1b5b41 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -2462,6 +2462,7 @@ int smb2_open(struct ksmbd_work *work)
rc = PTR_ERR(name);
if (rc != -ENOMEM)
rc = -ENOENT;
+ name = NULL;
goto err_out1;
}
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ksmbd: fix an oops in error handling in smb2_open()
2021-07-29 14:15 [PATCH] ksmbd: fix an oops in error handling in smb2_open() Dan Carpenter
@ 2021-07-29 22:34 ` Namjae Jeon
0 siblings, 0 replies; 2+ messages in thread
From: Namjae Jeon @ 2021-07-29 22:34 UTC (permalink / raw)
To: Dan Carpenter
Cc: Namjae Jeon, Sergey Senozhatsky, Steve French, Hyunchul Lee,
Ronnie Sahlberg, linux-cifs, kernel-janitors
2021-07-29 23:15 GMT+09:00, Dan Carpenter <dan.carpenter@oracle.com>:
> If smb2_get_name() then "name" is an error pointer. In the clean up
> code, we try to kfree() it and that will lead to an Oops. Set it to
> NULL instead.
>
> Fixes: e2f34481b24d ("cifsd: add server-side procedures for SMB3")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
I will apply, Thanks for your patch!
^ permalink raw reply [flat|nested] 2+ messages in thread
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