{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7996a778ff8c717cb1a7a294475c59cc8f1e9fb8"
            },
            {
              "fixed": "812f1ae95b22419422972748f173b0916ee4d621"
            },
            {
              "fixed": "fef6167e8149896cd81bea333fd51b1c91239149"
            },
            {
              "fixed": "baa04572673125e4d5bc309b4077d1cb46cc78d1"
            },
            {
              "fixed": "7567f06abdefb1caf2d836107c4d08c5185c650e"
            },
            {
              "fixed": "60499924faf4ef97e84228c20515218ef121facf"
            },
            {
              "fixed": "3ef209ca0b4b68c75e9a814d90cc916026b5a6ac"
            },
            {
              "fixed": "1f07a897d43c63e6c9458bf77450defef39b5833"
            },
            {
              "fixed": "98b87885de4b7f605533a2860685f5689fce8e82"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.18"
            },
            {
              "fixed": "5.10.265"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.216"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.151"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.103"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.44"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74557.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: libiscsi: Fix stale-data leak into the SCSI sense buffer\n\niscsi_scsi_cmd_rsp() copies the sense data of a SCSI Response from the\ntarget-supplied data segment.  The segment carries a 2-byte sense length\nfollowed by the sense bytes, so it must hold 2 + senselen bytes, but the\nbounds check only requires datalen \u003e= senselen:\n\n\tsenselen = get_unaligned_be16(data);\n\tif (datalen \u003c senselen)\n\t\tgoto invalid_datalen;\n\tmemcpy(sc-\u003esense_buffer, data + 2,\n\t       min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE));\n\nA target that returns a SCSI Response whose datalen equals senselen\n(with senselen \u003c= SCSI_SENSE_BUFFERSIZE) makes the memcpy() from data +\n2 read up to two bytes past the received data.  Those bytes are stale\nconn-\u003edata contents and end up in the command's sense buffer, which is\nreturned to userspace.\n\nAccount for the 2-byte sense length prefix in the check.",
  "id": "CVE-2026-74557",
  "modified": "2026-08-20T03:30:36.032344756Z",
  "published": "2026-08-15T12:28:01.988Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f07a897d43c63e6c9458bf77450defef39b5833"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ef209ca0b4b68c75e9a814d90cc916026b5a6ac"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/60499924faf4ef97e84228c20515218ef121facf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7567f06abdefb1caf2d836107c4d08c5185c650e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/812f1ae95b22419422972748f173b0916ee4d621"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98b87885de4b7f605533a2860685f5689fce8e82"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/baa04572673125e4d5bc309b4077d1cb46cc78d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fef6167e8149896cd81bea333fd51b1c91239149"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74557.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74557"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "scsi: libiscsi: Fix stale-data leak into the SCSI sense buffer"
}