diff options
Diffstat (limited to 'source3/smbd/reply.c')
| -rw-r--r-- | source3/smbd/reply.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/source3/smbd/reply.c b/source3/smbd/reply.c index b43512329e..914f1801d2 100644 --- a/source3/smbd/reply.c +++ b/source3/smbd/reply.c @@ -2665,10 +2665,11 @@ int reply_write_and_X(connection_struct *conn, char *inbuf,char *outbuf,int leng { files_struct *fsp = file_fsp(inbuf,smb_vwv2); SMB_OFF_T startpos = IVAL(inbuf,smb_vwv3); - size_t numtowrite = SVAL(inbuf,smb_vwv10); + size_t numtowrite = SVAL(inbuf,smb_vwv10)|(((size_t)SVAL(inbuf,smb_vwv9))<<16); BOOL write_through = BITSETW(inbuf+smb_vwv7,0); ssize_t nwritten = -1; unsigned int smb_doff = SVAL(inbuf,smb_vwv11); + unsigned int smblen = smb_len(inbuf); char *data; START_PROFILE(SMBwriteX); @@ -2682,7 +2683,7 @@ int reply_write_and_X(connection_struct *conn, char *inbuf,char *outbuf,int leng CHECK_WRITE(fsp); CHECK_ERROR(fsp); - if(smb_doff > smb_len(inbuf)) { + if(smb_doff > smblen || (smb_doff + numtowrite > smblen)) { END_PROFILE(SMBwriteX); return(ERROR(ERRDOS,ERRbadmem)); } |