These > comparisons should be >= to prevent accessing one element beyond
the end of the buffer.
Fixes:
9cb837480424 ("RDMA/rtrs: server: main functionality")
Link: https://lore.kernel.org/r/20200519154525.GA66801@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
msg_id = imm_payload >> sess->mem_bits;
off = imm_payload & ((1 << sess->mem_bits) - 1);
- if (unlikely(msg_id > srv->queue_depth ||
- off > max_chunk_size)) {
+ if (unlikely(msg_id >= srv->queue_depth ||
+ off >= max_chunk_size)) {
rtrs_err(s, "Wrong msg_id %u, off %u\n",
msg_id, off);
close_sess(sess);