{
  "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"
            },
            {
              "fixed": "6.12.115-1"
            }
          ],
          "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:  asymmetric_keys: reject trust keys without IDs  The PKCS#8 parser deliberately leaves the asym_key_ids payload slot empty. key_or_keyring_common() unconditionally dereferences that slot when a PKCS#8 key is supplied to a key_or_keyring restriction. Both the plain and :chain forms reach this branch, allowing an unprivileged caller to trigger a NULL pointer dereference through KEYCTL_RESTRICT_KEYRING followed by add_key().   Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000  KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]  RIP: 0010:key_or_keyring_common (crypto/asymmetric_keys/restrict.c:205 crypto/asymmetric_keys/restrict.c:279)  Call Trace:   \u003cTASK\u003e   __key_create_or_update (security/keys/key.c:884)   key_create_or_update (security/keys/key.c:1021)   __do_sys_add_key (security/keys/keyctl.c:134)   do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)   entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)   \u003c/TASK\u003e  Kernel panic - not syncing: Fatal exception  Reject an asymmetric restriction key without key IDs. A PKCS#8 private key cannot identify the signer of a candidate certificate and is not a valid trust anchor.",
  "id": "DEBIAN-CVE-2026-99220",
  "modified": "2026-11-03T04:47:31.747704181Z",
  "published": "2026-11-02T16:17:46.113Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-99220"
    }
  ],
  "upstream": [
    "CVE-2026-99220"
  ]
}