{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  scsi: qla2xxx: Bound i2c-\u003elength in I2C bsg handlers  struct qla_i2c_access carries a 16-bit length field alongside a fixed 64-byte buffer:  \tstruct qla_i2c_access { \t\tuint16_t device, offset, option, length; \t\tuint8_t  buffer[0x40]; \t} __packed;  qla2x00_write_i2c() and qla2x00_read_i2c() use the user-supplied i2c-\u003elength without any bounds check. i2c is overlaid on a 256-byte on-stack buffer and sfp is a 256-byte DMA-pool buffer, so a length up to 65535 overruns both:    - write: memcpy(sfp, i2c-\u003ebuffer, i2c-\u003elength) over-reads the stack and     over-writes the sfp heap buffer, and qla2x00_write_sfp() then DMAs     i2c-\u003elength bytes out of the 256-byte buffer.   - read: qla2x00_read_sfp() DMAs i2c-\u003elength bytes into the 256-byte sfp,     then memcpy(i2c-\u003ebuffer, sfp, i2c-\u003elength) overflows the 64-byte     buffer inside the on-stack array.  A caller holding CAP_SYS_RAWIO can use this to corrupt the heap and the kernel stack. Reject requests whose length exceeds the buffer before any copy or DMA transfer in both handlers.",
  "id": "DEBIAN-CVE-2026-89864",
  "modified": "2026-09-17T04:47:34.999683144Z",
  "published": "2026-09-16T11:16:54.480Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-89864"
    }
  ],
  "upstream": [
    "CVE-2026-89864"
  ]
}