struct ppa_addr ppa;
size_t left = nchks * sizeof(struct nvme_nvm_chk_meta);
size_t log_pos, offset, len;
- int ret, i;
+ int ret, i, max_len;
+
+ /*
+ * limit requests to maximum 256K to avoid issuing arbitrary large
+ * requests when the device does not specific a maximum transfer size.
+ */
+ max_len = min_t(unsigned int, ctrl->max_hw_sectors << 9, 256 * 1024);
/* Normalize lba address space to obtain log offset */
ppa.ppa = slba;
offset = log_pos * sizeof(struct nvme_nvm_chk_meta);
while (left) {
- len = min_t(unsigned int, left, ctrl->max_hw_sectors << 9);
+ len = min_t(unsigned int, left, max_len);
ret = nvme_get_log_ext(ctrl, ns, NVME_NVM_LOG_REPORT_CHUNK,
dev_meta, len, offset);