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CVE-2022-49379 (GCVE-0-2022-49379)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:11 – Updated: 2026-05-11 18:58
VLAI
Title
driver core: Fix wait_for_device_probe() & deferred_probe_timeout interaction
Summary
In the Linux kernel, the following vulnerability has been resolved: driver core: Fix wait_for_device_probe() & deferred_probe_timeout interaction Mounting NFS rootfs was timing out when deferred_probe_timeout was non-zero [1]. This was because ip_auto_config() initcall times out waiting for the network interfaces to show up when deferred_probe_timeout was non-zero. While ip_auto_config() calls wait_for_device_probe() to make sure any currently running deferred probe work or asynchronous probe finishes, that wasn't sufficient to account for devices being deferred until deferred_probe_timeout. Commit 35a672363ab3 ("driver core: Ensure wait_for_device_probe() waits until the deferred_probe_timeout fires") tried to fix that by making sure wait_for_device_probe() waits for deferred_probe_timeout to expire before returning. However, if wait_for_device_probe() is called from the kernel_init() context: - Before deferred_probe_initcall() [2], it causes the boot process to hang due to a deadlock. - After deferred_probe_initcall() [3], it blocks kernel_init() from continuing till deferred_probe_timeout expires and beats the point of deferred_probe_timeout that's trying to wait for userspace to load modules. Neither of this is good. So revert the changes to wait_for_device_probe(). [1] - https://lore.kernel.org/lkml/TYAPR01MB45443DF63B9EF29054F7C41FD8C60@TYAPR01MB4544.jpnprd01.prod.outlook.com/ [2] - https://lore.kernel.org/lkml/YowHNo4sBjr9ijZr@dev-arch.thelio-3990X/ [3] - https://lore.kernel.org/lkml/Yo3WvGnNk3LvLb7R@linutronix.de/
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe , < 71cbce75031aed26c72c2dc8a83111d181685f1b (git)
Affected: 35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe , < 29357883a89193863f3cc6a2c5e0b42ceb022761 (git)
Affected: 35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe , < 528229474e1cbb1b3451cb713d94aecb5f6ee264 (git)
Affected: 35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe , < 4ad6af07efcca85369c21e4897b3020cff2c170b (git)
Affected: 35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe , < 5ee76c256e928455212ab759c51d198fedbe7523 (git)
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Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: n\u00facleo del controlador: se corrige la interacci\u00f3n wait_for_device_probe() y deferred_probe_timeout El montaje de rootfs NFS se agotaba cuando deferred_probe_timeout no era cero [1]. Esto se deb\u00eda a que la llamada de inicio ip_auto_config() agotaba el tiempo de espera a que aparecieran las interfaces de red cuando deferred_probe_timeout no era cero. Si bien ip_auto_config() llama a wait_for_device_probe() para asegurarse de que cualquier sonda diferida que se est\u00e9 ejecutando actualmente funcione o la sonda asincr\u00f3nica finalice, eso no era suficiente para explicar los dispositivos que se aplazaban hasta deferred_probe_timeout. El commit 35a672363ab3 (\"driver core: Ensure wait_for_device_probe() waits Until the deferred_probe_timeout fires\") intent\u00f3 solucionar eso asegur\u00e1ndose de que wait_for_device_probe() espere a que deferred_probe_timeout expire antes de regresar. Sin embargo, si wait_for_device_probe() se llama desde el contexto kernel_init(): - Antes de deferred_probe_initcall() [2], hace que el proceso de arranque se cuelgue debido a un punto muerto. - Despu\u00e9s de deferred_probe_initcall() [3], impide que kernel_init() contin\u00fae hasta que deferred_probe_timeout expire y supere el punto de deferred_probe_timeout que est\u00e1 tratando de esperar a que el espacio de usuario cargue m\u00f3dulos. Ninguna de estas opciones es buena. Por lo tanto, revierta los cambios a wait_for_device_probe(). [1] - https://lore.kernel.org/lkml/TYAPR01MB45443DF63B9EF29054F7C41FD8C60@TYAPR01MB4544.jpnprd01.prod.outlook.com/ [2] - https://lore.kernel.org/lkml/YowHNo4sBjr9ijZr@dev-arch.thelio-3990X/ [3] - https://lore.kernel.org/lkml/Yo3WvGnNk3LvLb7R@linutronix.de/"
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        "lastModified": "2026-06-17T05:17:52.830",
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      "cve": "CVE-2022-49379",
      "id": "CVE-2022-49379",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "201",
      "product_status:known_affected": "64",
      "product_status:known_not_affected": "124",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: driver core: Fix wait_for_device_probe() \u0026#38; deferred_probe_timeout interaction",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49379.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-03T00:39:14Z",
      "cve": "CVE-2022-49379",
      "id": "CVE-2022-49379",
      "initial_release_date": "2025-02-27T03:07:53Z",
      "product_status:known_affected": "334",
      "product_status:known_not_affected": "401",
      "product_status:recommended": "250",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49379",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49379.json",
      "version": "44"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.


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.