GHSA-PHFR-35GX-VF86

Vulnerability from github – Published: 2026-02-14 18:30 – Updated: 2026-02-14 18:30
VLAI?
Details

In the Linux kernel, the following vulnerability has been resolved:

drm/xe/nvm: Fix double-free on aux add failure

After a successful auxiliary_device_init(), aux_dev->dev.release (xe_nvm_release_dev()) is responsible for the kfree(nvm). When there is failure with auxiliary_device_add(), driver will call auxiliary_device_uninit(), which call put_device(). So that the .release callback will be triggered to free the memory associated with the auxiliary_device.

Move the kfree(nvm) into the auxiliary_device_init() failure path and remove the err goto path to fix below error.

" [ 13.232905] ================================================================== [ 13.232911] BUG: KASAN: double-free in xe_nvm_init+0x751/0xf10 [xe] [ 13.233112] Free of addr ffff888120635000 by task systemd-udevd/273

[ 13.233120] CPU: 8 UID: 0 PID: 273 Comm: systemd-udevd Not tainted 6.19.0-rc2-lgci-xe-kernel+ #225 PREEMPT(voluntary) ... [ 13.233125] Call Trace: [ 13.233126] [ 13.233127] dump_stack_lvl+0x7f/0xc0 [ 13.233132] print_report+0xce/0x610 [ 13.233136] ? kasan_complete_mode_report_info+0x5d/0x1e0 [ 13.233139] ? xe_nvm_init+0x751/0xf10 [xe] ... "

v2: drop err goto path. (Alexander)

(cherry picked from commit a3187c0c2bbd947ffff97f90d077ac88f9c2a215)

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-23162"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-14T16:15:56Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/nvm: Fix double-free on aux add failure\n\nAfter a successful auxiliary_device_init(), aux_dev-\u003edev.release\n(xe_nvm_release_dev()) is responsible for the kfree(nvm). When\nthere is failure with auxiliary_device_add(), driver will call\nauxiliary_device_uninit(), which call put_device(). So that the\n.release callback will be triggered to free the memory associated\nwith the auxiliary_device.\n\nMove the kfree(nvm) into the auxiliary_device_init() failure path\nand remove the err goto path to fix below error.\n\n\"\n[   13.232905] ==================================================================\n[   13.232911] BUG: KASAN: double-free in xe_nvm_init+0x751/0xf10 [xe]\n[   13.233112] Free of addr ffff888120635000 by task systemd-udevd/273\n\n[   13.233120] CPU: 8 UID: 0 PID: 273 Comm: systemd-udevd Not tainted 6.19.0-rc2-lgci-xe-kernel+ #225 PREEMPT(voluntary)\n...\n[   13.233125] Call Trace:\n[   13.233126]  \u003cTASK\u003e\n[   13.233127]  dump_stack_lvl+0x7f/0xc0\n[   13.233132]  print_report+0xce/0x610\n[   13.233136]  ? kasan_complete_mode_report_info+0x5d/0x1e0\n[   13.233139]  ? xe_nvm_init+0x751/0xf10 [xe]\n...\n\"\n\nv2: drop err goto path. (Alexander)\n\n(cherry picked from commit a3187c0c2bbd947ffff97f90d077ac88f9c2a215)",
  "id": "GHSA-phfr-35gx-vf86",
  "modified": "2026-02-14T18:30:15Z",
  "published": "2026-02-14T18:30:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23162"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32887d8e4bc0696b3cb6c5915a42b39cfd3434f4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a44241b0b83a6047c5448da1fff03fcc29496b5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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