{
  "affected": [
    {
      "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"
            },
            {
              "fixed": "7.2.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  smb: client: fix use-before-check of ReparseDataLength in reparse_buf_ptr()  reparse_buf_ptr() reads buf-\u003eReparseDataLength before checking that count covers the full fixed header:      buf = (struct reparse_data_buffer *)((u8 *)io + off);     len = sizeof(*buf);                          /* 8 bytes */     rdlen = le16_to_cpu(buf-\u003eReparseDataLength); /* offset 4, 2 bytes */      if (count \u003c len || count \u003c rdlen + len)      /* check comes after */  struct reparse_data_buffer has ReparseDataLength at offset 4.  If a server returns OutputCount \u003c 6, the read at offset 4-5 reaches past the end of the received data.  The off+count bounds against iov_len were already validated, but that does not protect against count being smaller than sizeof(*buf).  Split the check: verify count \u003e= sizeof(*buf) before reading ReparseDataLength, then verify count covers the data region.",
  "id": "DEBIAN-CVE-2026-89632",
  "modified": "2026-10-19T20:47:33.119264024Z",
  "published": "2026-09-11T20:19:48.763Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-89632"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-89632"
  ]
}