Message ID | 20220901182429.93533-4-pbonzini@redhat.com |
---|---|
State | New |
Headers | show
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envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01, T_SPF_TEMPERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> |
Series |
[PULL,01/39] esp: Handle CMD_BUSRESET by resetting the SCSI bus
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expand
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diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c index cc71524024..4403717c4a 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; }