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| author | Namjae Jeon <linkinjeon@kernel.org> | 2021-09-24 09:17:30 +0900 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2021-10-06 00:23:00 -0500 |
| commit | 363999901116ffa9a5462215fef25ea9c7f2823c (patch) | |
| tree | 455be8212ffe20e9c6b7cac6de637e091feced15 /fs/ksmbd/smb_common.c | |
| parent | 9e1ff307c779ce1f0f810c7ecce3d95bbae40896 (diff) | |
| download | linux-363999901116ffa9a5462215fef25ea9c7f2823c.tar.gz linux-363999901116ffa9a5462215fef25ea9c7f2823c.tar.bz2 linux-363999901116ffa9a5462215fef25ea9c7f2823c.zip | |
ksmbd: add the check to vaildate if stream protocol length exceeds maximum value
This patch add MAX_STREAM_PROT_LEN macro and check if stream protocol
length exceeds maximum value. opencode pdu size check in
ksmbd_pdu_size_has_room().
Cc: Tom Talpey <tom@talpey.com>
Cc: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Cc: Ralph Böhme <slow@samba.org>
Acked-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/ksmbd/smb_common.c')
| -rw-r--r-- | fs/ksmbd/smb_common.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/ksmbd/smb_common.c b/fs/ksmbd/smb_common.c index db8042a173d0..b6c4c7e960fa 100644 --- a/fs/ksmbd/smb_common.c +++ b/fs/ksmbd/smb_common.c @@ -21,7 +21,6 @@ static const char basechars[43] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_-!@#$%"; #define MAGIC_CHAR '~' #define PERIOD '.' #define mangle(V) ((char)(basechars[(V) % MANGLE_BASE])) -#define KSMBD_MIN_SUPPORTED_HEADER_SIZE (sizeof(struct smb2_hdr)) struct smb_protocol { int index; @@ -294,11 +293,6 @@ int ksmbd_init_smb_server(struct ksmbd_work *work) return 0; } -bool ksmbd_pdu_size_has_room(unsigned int pdu) -{ - return (pdu >= KSMBD_MIN_SUPPORTED_HEADER_SIZE - 4); -} - int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work, int info_level, struct ksmbd_file *dir, struct ksmbd_dir_info *d_info, |