ghsa-c37g-rxhp-7mqc
Vulnerability from github
Published
2024-04-17 12:32
Modified
2024-04-17 12:32
Details

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

spi: lpspi: Avoid potential use-after-free in probe()

fsl_lpspi_probe() is allocating/disposing memory manually with spi_alloc_host()/spi_alloc_target(), but uses devm_spi_register_controller(). In case of error after the latter call the memory will be explicitly freed in the probe function by spi_controller_put() call, but used afterwards by "devm" management outside probe() (spi_unregister_controller() <- devm_spi_unregister() below).

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000070 ... Call trace: kernfs_find_ns kernfs_find_and_get_ns sysfs_remove_group sysfs_remove_groups device_remove_attrs device_del spi_unregister_controller devm_spi_unregister release_nodes devres_release_all really_probe driver_probe_device __device_attach_driver bus_for_each_drv __device_attach device_initial_probe bus_probe_device deferred_probe_work_func process_one_work worker_thread kthread ret_from_fork

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2024-26866"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-17T11:15:09Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: lpspi: Avoid potential use-after-free in probe()\n\nfsl_lpspi_probe() is allocating/disposing memory manually with\nspi_alloc_host()/spi_alloc_target(), but uses\ndevm_spi_register_controller(). In case of error after the latter call the\nmemory will be explicitly freed in the probe function by\nspi_controller_put() call, but used afterwards by \"devm\" management outside\nprobe() (spi_unregister_controller() \u003c- devm_spi_unregister() below).\n\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000070\n...\nCall trace:\n kernfs_find_ns\n kernfs_find_and_get_ns\n sysfs_remove_group\n sysfs_remove_groups\n device_remove_attrs\n device_del\n spi_unregister_controller\n devm_spi_unregister\n release_nodes\n devres_release_all\n really_probe\n driver_probe_device\n __device_attach_driver\n bus_for_each_drv\n __device_attach\n device_initial_probe\n bus_probe_device\n deferred_probe_work_func\n process_one_work\n worker_thread\n kthread\n ret_from_fork",
  "id": "GHSA-c37g-rxhp-7mqc",
  "modified": "2024-04-17T12:32:04Z",
  "published": "2024-04-17T12:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26866"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1543418e82789cc383cd36d41469983c64e3fc7f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ae0ab0143fcc06190713ed81a6486ed0ad3c861"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/996ce839606afd0fef91355627868022aa73eb68"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da83ed350e4604b976e94239b08d8e2e7eaee7ea"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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