{
  "cveId": "CVE-2022-49667",
  "url": "https://patchblox.com/security/cve/CVE-2022-49667",
  "summary": "CVE-2022-49667 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49667, released February 26, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  net: bonding: fix use-after-free after 802.3ad s...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net: bonding: fix use-after-free after 802.3ad slave unbind  commit 0622cab0341c (\u0022bonding: fix 802.3ad aggregator reselection\u0022), resolve case, when there is several aggregation groups in the same bond. bond_3ad_unbind_slave will invalidate (clear) aggregator when __agg_active_ports return zero. So, ad_clear_agg can be executed even, when num_of_ports!=0. Than bond_3ad_unbind_slave can be executed again for, previously cleared aggregator. NOTE: at this time bond_3ad_unbind_slave will not update slave ports list, because lag_ports==NULL. So, here we got slave ports, pointing to freed aggregator memory.  Fix with checking actual number of ports in group (as was before commit 0622cab0341c (\u0022bonding: fix 802.3ad aggregator reselection\u0022) ), before ad_clear_agg().  The KASAN logs are as follows:  [  767.617392] ================================================================== [  767.630776] BUG: KASAN: use-after-free in bond_3ad_state_machine_handler\u002B0x13dc/0x1470 [  767.638764] Read of size 2 at addr ffff00011ba9d430 by task kworker/u8:7/767 [  767.647361] CPU: 3 PID: 767 Comm: kworker/u8:7 Tainted: G           O 5.15.11 #15 [  767.655329] Hardware name: DNI AmazonGo1 A7040 board (DT) [  767.660760] Workqueue: lacp_1 bond_3ad_state_machine_handler [  767.666468] Call trace: [  767.668930]  dump_backtrace\u002B0x0/0x2d0 [  767.672625]  show_stack\u002B0x24/0x30 [  767.675965]  dump_stack_lvl\u002B0x68/0x84 [  767.679659]  print_address_description.constprop.0\u002B0x74/0x2b8 [  767.685451]  kasan_report\u002B0x1f0/0x260 [  767.689148]  __asan_load2\u002B0x94/0xd0 [  767.692667]  bond_3ad_state_machine_handler\u002B0x13dc/0x1470",
  "published": "2025-02-26T07:01:41Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00289,
  "epssPercentile": 0.2156,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.18.14-1",
      "fix": "DEBIAN-CVE-2022-49667",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49667",
      "released": "2025-02-26T07:01:41Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.18.14-1",
      "fix": "DEBIAN-CVE-2022-49667",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49667",
      "released": "2025-02-26T07:01:41Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.18.14-1",
      "fix": "DEBIAN-CVE-2022-49667",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49667",
      "released": "2025-02-26T07:01:41Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}