{
  "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"
            },
            {
              "fixed": "7.2.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  wifi: cfg80211: validate IEs in cfg80211_wext_siwgenie()  The KASAN allocation trace shows that a malformed IE buffer is stored via SIOCSIWGENIE (cfg80211_wext_siwgenie()) without any validation. The crash trace shows that a subsequent SIOCSIWESSID triggers a connection attempt which calls cfg80211_sme_get_conn_ies() to process the stored IE buffer, causing:   - An out-of-bounds read in skip_ie() which reads ies[pos+1]    (the length byte) past the end of the 1-byte buffer.   - An integer underflow in the memcpy size argument when offs    returned by ieee80211_ie_split() exceeds ies_len, causing    unsigned subtraction to wrap to SIZE_MAX and triggering a    fortify panic.  Fix this by validating the IE buffer in cfg80211_wext_siwgenie() before storing it.  [drop unnecessary ie_len check, update commit message]",
  "id": "DEBIAN-CVE-2026-93784",
  "modified": "2026-09-26T08:47:33.055360656Z",
  "published": "2026-09-24T17:17:11.017Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-93784"
    }
  ],
  "upstream": [
    "CVE-2026-93784"
  ]
}