ghsa-c96h-hhgw-4533
Vulnerability from github
Published
2024-12-27 15:31
Modified
2025-01-06 18:31
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:

gpio: graniterapids: Fix vGPIO driver crash

Move setting irq_chip.name from probe() function to the initialization of "irq_chip" struct in order to fix vGPIO driver crash during bootup.

Crash was caused by unauthorized modification of irq_chip.name field where irq_chip struct was initialized as const.

This behavior is a consequence of suboptimal implementation of gpio_irq_chip_set_chip(), which should be changed to avoid casting away const qualifier.

Crash log: BUG: unable to handle page fault for address: ffffffffc0ba81c0 /#PF: supervisor write access in kernel mode /#PF: error_code(0x0003) - permissions violation CPU: 33 UID: 0 PID: 1075 Comm: systemd-udevd Not tainted 6.12.0-rc6-00077-g2e1b3cc9d7f7 #1 Hardware name: Intel Corporation Kaseyville RP/Kaseyville RP, BIOS KVLDCRB1.PGS.0026.D73.2410081258 10/08/2024 RIP: 0010:gnr_gpio_probe+0x171/0x220 [gpio_graniterapids]

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{
  "affected": [],
  "aliases": [
    "CVE-2024-56671"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-27T15:15:26Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: graniterapids: Fix vGPIO driver crash\n\nMove setting irq_chip.name from probe() function to the initialization\nof \"irq_chip\" struct in order to fix vGPIO driver crash during bootup.\n\nCrash was caused by unauthorized modification of irq_chip.name field\nwhere irq_chip struct was initialized as const.\n\nThis behavior is a consequence of suboptimal implementation of\ngpio_irq_chip_set_chip(), which should be changed to avoid\ncasting away const qualifier.\n\nCrash log:\nBUG: unable to handle page fault for address: ffffffffc0ba81c0\n/#PF: supervisor write access in kernel mode\n/#PF: error_code(0x0003) - permissions violation\nCPU: 33 UID: 0 PID: 1075 Comm: systemd-udevd Not tainted 6.12.0-rc6-00077-g2e1b3cc9d7f7 #1\nHardware name: Intel Corporation Kaseyville RP/Kaseyville RP, BIOS KVLDCRB1.PGS.0026.D73.2410081258 10/08/2024\nRIP: 0010:gnr_gpio_probe+0x171/0x220 [gpio_graniterapids]",
  "id": "GHSA-c96h-hhgw-4533",
  "modified": "2025-01-06T18:31:01Z",
  "published": "2024-12-27T15:31:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56671"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e631cab10c6b287a33c35953e6dbda1f7f89bc1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb9640fd1ce666610b77f5997596e9570a36378f"
    }
  ],
  "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"
    }
  ]
}


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