{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.12-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  net/mlx5e: Fix use-after-free in mlx5e_tx_reporter_timeout_recover  mlx5e_tx_reporter_timeout_recover() accesses sq-\u003enetdev after mlx5e_safe_reopen_channels() has torn down and freed the channel (and its embedded SQs). Replace the three sq-\u003enetdev references with priv-\u003enetdev which is safe because priv outlives channel teardown.  The netdev_err() call already used priv-\u003enetdev for this reason; make the trylock/unlock and health_channel_eq_recover calls consistent.  This fixes the following KASAN splat:    BUG: KASAN: use-after-free in mlx5e_tx_reporter_timeout_recover+0x1dd/0x360 [mlx5_core]   Read of size 8 at addr ffff889860ed0b28 by task kworker/u113:2/5277    Call Trace:    mlx5e_tx_reporter_timeout_recover+0x1dd/0x360 [mlx5_core]    devlink_health_reporter_recover+0xa2/0x150    devlink_health_report+0x254/0x7c0    mlx5e_reporter_tx_timeout+0x297/0x380 [mlx5_core]    mlx5e_tx_timeout_work+0x109/0x170 [mlx5_core]    process_one_work+0x677/0xf20    worker_thread+0x51f/0xd90    kthread+0x3a5/0x810    ret_from_fork+0x208/0x400    ret_from_fork_asm+0x1a/0x30",
  "id": "DEBIAN-CVE-2026-64122",
  "modified": "2026-09-14T16:47:39.060645073Z",
  "published": "2026-07-19T16:17:53.790Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-64122"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-64122"
  ]
}