diff options
| -rw-r--r-- | fs/smb/server/vfs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/smb/server/vfs.c b/fs/smb/server/vfs.c index a7694aae0b947..e059316be36fd 100644 --- a/fs/smb/server/vfs.c +++ b/fs/smb/server/vfs.c @@ -443,6 +443,13 @@ static int ksmbd_vfs_stream_write(struct ksmbd_file *fp, char *buf, loff_t *pos, goto out; } + if (v_len <= *pos) { + pr_err("stream write position %lld is out of bounds (stream length: %zd)\n", + *pos, v_len); + err = -EINVAL; + goto out; + } + if (v_len < size) { wbuf = kvzalloc(size, KSMBD_DEFAULT_GFP); if (!wbuf) { |