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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