{
  "cveId": "CVE-2026-46254",
  "url": "https://patchblox.com/security/cve/CVE-2026-46254",
  "summary": "CVE-2026-46254 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-46254, released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "AppArmor: Allow apparmor to handle unaligned dfa tables",
  "description": "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\u0027t always guaranteed and as such may trigger unaligned memory accesses on various architectures. Resulting in the following  [\u00A0\u00A0 73.901376] WARNING: CPU: 0 PID: 341 at security/apparmor/match.c:316 aa_dfa_unpack\u002B0x6cc/0x720 [\u00A0\u00A0 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 [\u00A0\u00A0 74.428977] CPU: 0 UID: 0 PID: 341 Comm: apparmor_parser Not tainted 6.18.0-rc6\u002B #9 NONE [\u00A0\u00A0 74.536543] Call Trace: [\u00A0\u00A0 74.568561] [\u003C0000000000434c24\u003E] dump_stack\u002B0x8/0x18 [\u00A0\u00A0 74.633757] [\u003C0000000000476438\u003E] __warn\u002B0xd8/0x100 [\u00A0\u00A0 74.696664] [\u003C00000000004296d4\u003E] warn_slowpath_fmt\u002B0x34/0x74 [\u00A0\u00A0 74.771006] [\u003C00000000008db28c\u003E] aa_dfa_unpack\u002B0x6cc/0x720 [\u00A0\u00A0 74.843062] [\u003C00000000008e643c\u003E] unpack_pdb\u002B0xbc/0x7e0 [\u00A0\u00A0 74.910545] [\u003C00000000008e7740\u003E] unpack_profile\u002B0xbe0/0x1300 [\u00A0\u00A0 74.984888] [\u003C00000000008e82e0\u003E] aa_unpack\u002B0xe0/0x6a0 [\u00A0\u00A0 75.051226] [\u003C00000000008e3ec4\u003E] aa_replace_profiles\u002B0x64/0x1160 [\u00A0\u00A0 75.130144] [\u003C00000000008d4d90\u003E] policy_update\u002B0xf0/0x280 [\u00A0\u00A0 75.201057] [\u003C00000000008d4fc8\u003E] profile_replace\u002B0xa8/0x100 [\u00A0\u00A0 75.274258] [\u003C0000000000766bd0\u003E] vfs_write\u002B0x90/0x420 [\u00A0\u00A0 75.340594] [\u003C00000000007670cc\u003E] ksys_write\u002B0x4c/0xe0 [\u00A0\u00A0 75.406932] [\u003C0000000000767174\u003E] sys_write\u002B0x14/0x40 [\u00A0\u00A0 75.472126] [\u003C0000000000406174\u003E] linux_sparc_syscall\u002B0x34/0x44 [\u00A0\u00A0 75.548802] ---[ end trace 0000000000000000 ]--- [\u00A0\u00A0 75.609503] dfa blob stream 0xfff0000008926b96 not aligned. [\u00A0\u00A0 75.682695] Kernel unaligned access at TPC[8db2a8] aa_dfa_unpack\u002B0x6e8/0x720  Work around it by using the get_unaligned_xx() helpers.",
  "published": "2026-06-03T18:16:26Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00156,
  "epssPercentile": 0.04787,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46254",
  "fixes": [
    {
      "platform": "linux",
      "product": "dtb-aarch64",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21388-1",
      "released": "2026-07-21T08:27:32Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.36.1",
      "fix": "OPENSUSE-SU-2026:21388-1",
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      "released": "2026-07-21T08:27:32Z"
    },
    {
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      "fix": "SUSE-SU-2026:2800-1",
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      "released": "2026-07-08T14:59:38Z"
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    {
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      "released": "2026-07-08T14:59:38Z"
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    {
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      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-46254",
      "released": "2026-06-24T14:07:24Z"
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      "released": "2026-06-24T14:07:24Z"
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  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}