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| author | Namjae Jeon <namjae.jeon@samsung.com> | 2021-07-16 14:52:46 +0900 |
|---|---|---|
| committer | Namjae Jeon <namjae.jeon@samsung.com> | 2021-07-19 16:20:02 +0900 |
| commit | 67307023d02b1339e0b930b742fe5a9cd81284ca (patch) | |
| tree | fb0b12318a75701e4a167075920004bfa5496364 /fs/ksmbd/smb2misc.c | |
| parent | 58090b175271870842d823622013d4499f462a10 (diff) | |
| download | lwn-67307023d02b1339e0b930b742fe5a9cd81284ca.tar.gz lwn-67307023d02b1339e0b930b742fe5a9cd81284ca.zip | |
ksmbd: set STATUS_INVALID_PARAMETER error status if credit charge is invalid
MS-SMB2 specification describe :
If the calculated credit number is greater than the CreditCharge,
the server MUST fail the request with the error code
STATUS_INVALID_PARAMETER.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/ksmbd/smb2misc.c')
| -rw-r--r-- | fs/ksmbd/smb2misc.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/ksmbd/smb2misc.c b/fs/ksmbd/smb2misc.c index 4508631c5706..e68aa7d718ed 100644 --- a/fs/ksmbd/smb2misc.c +++ b/fs/ksmbd/smb2misc.c @@ -423,8 +423,13 @@ int ksmbd_smb2_check_message(struct ksmbd_work *work) return 1; } - return work->conn->vals->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU ? - smb2_validate_credit_charge(hdr) : 0; + if ((work->conn->vals->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU) && + smb2_validate_credit_charge(hdr)) { + work->conn->ops->set_rsp_status(work, STATUS_INVALID_PARAMETER); + return 1; + } + + return 0; } int smb2_negotiate_request(struct ksmbd_work *work) |