diff options
| -rw-r--r-- | hw/scsi/scsi-bus.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c index cc71524..4403717 100644 --- a/hw/scsi/scsi-bus.c +++ b/hw/scsi/scsi-bus.c @@ -712,6 +712,11 @@ SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun, SCSICommand cmd = { .len = 0 }; int ret; + if (buf_len == 0) { + trace_scsi_req_parse_bad(d->id, lun, tag, 0); + goto invalid_opcode; + } + if ((d->unit_attention.key == UNIT_ATTENTION || bus->unit_attention.key == UNIT_ATTENTION) && (buf[0] != INQUIRY && @@ -741,6 +746,7 @@ SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun, if (ret != 0) { trace_scsi_req_parse_bad(d->id, lun, tag, buf[0]); +invalid_opcode: req = scsi_req_alloc(&reqops_invalid_opcode, d, tag, lun, hba_private); } else { assert(cmd.len != 0); @@ -1316,7 +1322,7 @@ int scsi_req_parse_cdb(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf, cmd->lba = -1; len = scsi_cdb_length(buf); - if (len < 0) { + if (len < 0 || len > buf_len) { return -1; } |