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authorNamjae Jeon <namjae.jeon@samsung.com>2021-07-16 16:39:54 +0900
committerNamjae Jeon <namjae.jeon@samsung.com>2021-07-19 16:20:04 +0900
commitd347d745f06c7e6503abc08f68dc3b71da71596d (patch)
tree0a29a55dcb094edcacbc183120606b2bdb62b8c5 /fs/ksmbd/smb2misc.c
parent67307023d02b1339e0b930b742fe5a9cd81284ca (diff)
ksmbd: move credit charge verification over smb2 request size verification
Move credit charge verification over smb2 request size verification to avoid being skipped. 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.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/ksmbd/smb2misc.c b/fs/ksmbd/smb2misc.c
index e68aa7d718ed..9aa46bb3e10d 100644
--- a/fs/ksmbd/smb2misc.c
+++ b/fs/ksmbd/smb2misc.c
@@ -385,6 +385,12 @@ int ksmbd_smb2_check_message(struct ksmbd_work *work)
}
}
+ 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;
+ }
+
clc_len = smb2_calc_size(hdr);
if (len != clc_len) {
/* server can return one byte more due to implied bcc[0] */
@@ -423,12 +429,6 @@ int ksmbd_smb2_check_message(struct ksmbd_work *work)
return 1;
}
- 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;
}