{
  "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": "6.12.85-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.18.14-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  AppArmor: Allow apparmor to handle unaligned dfa tables  The dfa tables can originate from kernel or userspace and 8-byte alignment isn't always guaranteed and as such may trigger unaligned memory accesses on various architectures. Resulting in the following  [   73.901376] WARNING: CPU: 0 PID: 341 at security/apparmor/match.c:316 aa_dfa_unpack+0x6cc/0x720 [   74.015867] Modules linked in: binfmt_misc evdev flash sg drm drm_panel_orientation_quirks backlight i2c_core configfs nfnetlink autofs4 ext4 crc16 mbcache jbd2 hid_generic usbhid sr_mod hid cdrom sd_mod ata_generic ohci_pci ehci_pci ehci_hcd ohci_hcd pata_ali libata sym53c8xx scsi_transport_spi tg3 scsi_mod usbcore libphy scsi_common mdio_bus usb_common [   74.428977] CPU: 0 UID: 0 PID: 341 Comm: apparmor_parser Not tainted 6.18.0-rc6+ #9 NONE [   74.536543] Call Trace: [   74.568561] [\u003c0000000000434c24\u003e] dump_stack+0x8/0x18 [   74.633757] [\u003c0000000000476438\u003e] __warn+0xd8/0x100 [   74.696664] [\u003c00000000004296d4\u003e] warn_slowpath_fmt+0x34/0x74 [   74.771006] [\u003c00000000008db28c\u003e] aa_dfa_unpack+0x6cc/0x720 [   74.843062] [\u003c00000000008e643c\u003e] unpack_pdb+0xbc/0x7e0 [   74.910545] [\u003c00000000008e7740\u003e] unpack_profile+0xbe0/0x1300 [   74.984888] [\u003c00000000008e82e0\u003e] aa_unpack+0xe0/0x6a0 [   75.051226] [\u003c00000000008e3ec4\u003e] aa_replace_profiles+0x64/0x1160 [   75.130144] [\u003c00000000008d4d90\u003e] policy_update+0xf0/0x280 [   75.201057] [\u003c00000000008d4fc8\u003e] profile_replace+0xa8/0x100 [   75.274258] [\u003c0000000000766bd0\u003e] vfs_write+0x90/0x420 [   75.340594] [\u003c00000000007670cc\u003e] ksys_write+0x4c/0xe0 [   75.406932] [\u003c0000000000767174\u003e] sys_write+0x14/0x40 [   75.472126] [\u003c0000000000406174\u003e] linux_sparc_syscall+0x34/0x44 [   75.548802] ---[ end trace 0000000000000000 ]--- [   75.609503] dfa blob stream 0xfff0000008926b96 not aligned. [   75.682695] Kernel unaligned access at TPC[8db2a8] aa_dfa_unpack+0x6e8/0x720  Work around it by using the get_unaligned_xx() helpers.",
  "id": "DEBIAN-CVE-2026-46254",
  "modified": "2026-09-14T16:47:33.393690490Z",
  "published": "2026-06-03T18:16:26.323Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-46254"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-46254"
  ]
}