GHSA-9HWV-RWQX-F5CV

Vulnerability from github – Published: 2025-03-17 18:31 – Updated: 2025-03-17 18:31
VLAI
Details

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

nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags

In nvme_alloc_admin_tags, the admin_q can be set to an error (typically -ENOMEM) if the blk_mq_init_queue call fails to set up the queue, which is checked immediately after the call. However, when we return the error message up the stack, to nvme_reset_work the error takes us to nvme_remove_dead_ctrl() nvme_dev_disable() nvme_suspend_queue(&dev->queues[0]).

Here, we only check that the admin_q is non-NULL, rather than not an error or NULL, and begin quiescing a queue that never existed, leading to bad / NULL pointer dereference.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-49492"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:25Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags\n\nIn nvme_alloc_admin_tags, the admin_q can be set to an error (typically\n-ENOMEM) if the blk_mq_init_queue call fails to set up the queue, which\nis checked immediately after the call. However, when we return the error\nmessage up the stack, to nvme_reset_work the error takes us to\nnvme_remove_dead_ctrl()\n  nvme_dev_disable()\n   nvme_suspend_queue(\u0026dev-\u003equeues[0]).\n\nHere, we only check that the admin_q is non-NULL, rather than not\nan error or NULL, and begin quiescing a queue that never existed, leading\nto bad / NULL pointer dereference.",
  "id": "GHSA-9hwv-rwqx-f5cv",
  "modified": "2025-03-17T18:31:51Z",
  "published": "2025-03-17T18:31:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49492"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54a4c1e47d1b2585e74920399455bd9abbfb2bd7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a28556082d1fbcbc599baf1c24252dfc73efefc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8321b17789f614414206af07e17ce4751c95dc76"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8da2b7bdb47e94bbc4062a3978c708926bcb022c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/906c81dba8ee8057523859b5e1a2479e9fd34860"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e649471b396fa0139d53919354ce1eace9b9a24"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af98940dd33c9f9e1beb4f71c0a39260100e2a65"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da42761181627e9bdc37d18368b827948a583929"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f76729662650cd7bc8f8194e057af381370349a7"
    }
  ],
  "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.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.