diff options
| -rw-r--r-- | fs/smb/server/smb2pdu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c index 6d3f975d582f..fcb1bcd5de95 100644 --- a/fs/smb/server/smb2pdu.c +++ b/fs/smb/server/smb2pdu.c @@ -8778,6 +8778,10 @@ int smb2_ioctl(struct ksmbd_work *work) ret = -EACCES; goto dup_ext_out; } + if (!(fp_in->daccess & FILE_READ_DATA_LE)) { + ret = -EACCES; + goto dup_ext_out; + } src_off = le64_to_cpu(dup_ext->SourceFileOffset); dst_off = le64_to_cpu(dup_ext->TargetFileOffset); |