{
  "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": "7.1.3-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  net: appletalk: fix NULL pointer dereference in aarp_send_ddp()  aarp_send_ddp() calls atalk_find_dev_addr(dev) in the LocalTalk fast path without checking for NULL. When the device has no AppleTalk interface configured (dev-\u003eatalk_ptr == NULL), this leads to a NULL pointer dereference at the at-\u003es_net access.   KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]  RIP: 0010:aarp_send_ddp (net/appletalk/aarp.c:552 (discriminator 2))  Call Trace:   \u003cTASK\u003e   atalk_sendmsg (net/appletalk/ddp.c:1715)   __sys_sendto (net/socket.c:2265 (discriminator 1))   __x64_sys_sendto (net/socket.c:2272)   do_syscall_64 (arch/x86/entry/syscall_64.c:94)   entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)  Add a NULL check consistent with the other callers of atalk_find_dev_addr().",
  "id": "DEBIAN-CVE-2026-93286",
  "modified": "2026-09-25T04:47:34.332775192Z",
  "published": "2026-09-24T17:17:09.810Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-93286"
    }
  ],
  "upstream": [
    "CVE-2026-93286"
  ]
}