ghsa-qq43-74jj-93fp
Vulnerability from github
Published
2024-11-05 18:32
Modified
2024-11-13 00:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

drm/xe/oa: Fix overflow in oa batch buffer

By default xe_bb_create_job() appends a MI_BATCH_BUFFER_END to batch buffer, this is not a problem if batch buffer is only used once but oa reuses the batch buffer for the same metric and at each call it appends a MI_BATCH_BUFFER_END, printing the warning below and then overflowing.

[ 381.072016] ------------[ cut here ]------------ [ 381.072019] xe 0000:00:02.0: [drm] Assertion bb->len * 4 + bb_prefetch(q->gt) <= size failed! platform: LUNARLAKE subplatform: 1 graphics: Xe2_LPG / Xe2_HPG 20.04 step B0 media: Xe2_LPM / Xe2_HPM 20.00 step B0 tile: 0 VRAM 0 B GT: 0 type 1

So here checking if batch buffer already have MI_BATCH_BUFFER_END if not append it.

v2: - simply fix, suggestion from Ashutosh

(cherry picked from commit 9ba0e0f30ca42a98af3689460063edfb6315718a)

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-50090"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-05T17:15:06Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/oa: Fix overflow in oa batch buffer\n\nBy default xe_bb_create_job() appends a MI_BATCH_BUFFER_END to batch\nbuffer, this is not a problem if batch buffer is only used once but\noa reuses the batch buffer for the same metric and at each call\nit appends a MI_BATCH_BUFFER_END, printing the warning below and then\noverflowing.\n\n[  381.072016] ------------[ cut here ]------------\n[  381.072019] xe 0000:00:02.0: [drm] Assertion `bb-\u003elen * 4 + bb_prefetch(q-\u003egt) \u003c= size` failed!\n               platform: LUNARLAKE subplatform: 1\n               graphics: Xe2_LPG / Xe2_HPG 20.04 step B0\n               media: Xe2_LPM / Xe2_HPM 20.00 step B0\n               tile: 0 VRAM 0 B\n               GT: 0 type 1\n\nSo here checking if batch buffer already have MI_BATCH_BUFFER_END if\nnot append it.\n\nv2:\n- simply fix, suggestion from Ashutosh\n\n(cherry picked from commit 9ba0e0f30ca42a98af3689460063edfb6315718a)",
  "id": "GHSA-qq43-74jj-93fp",
  "modified": "2024-11-13T00:30:47Z",
  "published": "2024-11-05T18:32:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50090"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c10ba06bb1b48acce6d4d9c1e33beb9954f1788"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bcb5be3421705e682b0b32073ad627056d6bc2a2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.