GHSA-FPF4-CFCH-367M

Vulnerability from github – Published: 2024-04-05 09:30 – Updated: 2024-11-06 21:30
VLAI?
Details

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

vfio/pci: Lock external INTx masking ops

Mask operations through config space changes to DisINTx may race INTx configuration changes via ioctl. Create wrappers that add locking for paths outside of the core interrupt code.

In particular, irq_type is updated holding igate, therefore testing is_intx() requires holding igate. For example clearing DisINTx from config space can otherwise race changes of the interrupt configuration.

This aligns interfaces which may trigger the INTx eventfd into two camps, one side serialized by igate and the other only enabled while INTx is configured. A subsequent patch introduces synchronization for the latter flows.

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

{
  "affected": [],
  "aliases": [
    "CVE-2024-26810"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-05T09:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/pci: Lock external INTx masking ops\n\nMask operations through config space changes to DisINTx may race INTx\nconfiguration changes via ioctl.  Create wrappers that add locking for\npaths outside of the core interrupt code.\n\nIn particular, irq_type is updated holding igate, therefore testing\nis_intx() requires holding igate.  For example clearing DisINTx from\nconfig space can otherwise race changes of the interrupt configuration.\n\nThis aligns interfaces which may trigger the INTx eventfd into two\ncamps, one side serialized by igate and the other only enabled while\nINTx is configured.  A subsequent patch introduces synchronization for\nthe latter flows.",
  "id": "GHSA-fpf4-cfch-367m",
  "modified": "2024-11-06T21:30:54Z",
  "published": "2024-04-05T09:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26810"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03505e3344b0576fd619416793a31eae9c5b73bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04a4a017b9ffd7b0f427b8c376688d14cb614651"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e71b6449d55179170efc8dee8664510bb813b42"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3dd9be6cb55e0f47544e7cdda486413f7134e3b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3fe0ac10bd117df847c93408a9d428a453cd60e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fe478d855b20ac1eb5da724afe16af5a2aaaa40"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/810cd4bb53456d0503cc4e7934e063835152c1b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec73e079729258a05452356cf6d098bf1504d5a6"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/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 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.



Detection rules are retrieved from Rulezet.