Vulnerability-Lookup

GHSA-5293-CF37-FXQW

Vulnerability from github – Published: 2024-09-13 06:30 – Updated: 2024-09-13 18:31

Details

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

firmware: qcom: scm: Mark get_wq_ctx() as atomic call

Currently get_wq_ctx() is wrongly configured as a standard call. When two SMC calls are in sleep and one SMC wakes up, it calls get_wq_ctx() to resume the corresponding sleeping thread. But if get_wq_ctx() is interrupted, goes to sleep and another SMC call is waiting to be allocated a waitq context, it leads to a deadlock.

To avoid this get_wq_ctx() must be an atomic call and can't be a standard SMC call. Hence mark get_wq_ctx() as a fast call.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-46692"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-13T06:15:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: scm: Mark get_wq_ctx() as atomic call\n\nCurrently get_wq_ctx() is wrongly configured as a standard call. When two\nSMC calls are in sleep and one SMC wakes up, it calls get_wq_ctx() to\nresume the corresponding sleeping thread. But if get_wq_ctx() is\ninterrupted, goes to sleep and another SMC call is waiting to be allocated\na waitq context, it leads to a deadlock.\n\nTo avoid this get_wq_ctx() must be an atomic call and can\u0027t be a standard\nSMC call. Hence mark get_wq_ctx() as a fast call.",
  "id": "GHSA-5293-cf37-fxqw",
  "modified": "2024-09-13T18:31:46Z",
  "published": "2024-09-13T06:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46692"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9960085a3a82c58d3323c1c20b991db6045063b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cdf7efe4b02aa93813db0bf1ca596ad298ab6b06"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e40115c33c0d79c940545b6b12112aace7acd9f5"
    }
  ],
  "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"
    }
  ]
}

CVE-2024-46692 (GCVE-0-2024-46692)

Vulnerability from cvelistv5 – Published: 2024-09-13 05:29 – Updated: 2026-05-11 20:34

Title

firmware: qcom: scm: Mark get_wq_ctx() as atomic call

Summary

In the Linux kernel, the following vulnerability has been resolved: firmware: qcom: scm: Mark get_wq_ctx() as atomic call Currently get_wq_ctx() is wrongly configured as a standard call. When two SMC calls are in sleep and one SMC wakes up, it calls get_wq_ctx() to resume the corresponding sleeping thread. But if get_wq_ctx() is interrupted, goes to sleep and another SMC call is waiting to be allocated a waitq context, it leads to a deadlock. To avoid this get_wq_ctx() must be an atomic call and can't be a standard SMC call. Hence mark get_wq_ctx() as a fast call.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-29 15:06 UTC

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/cdf7efe4b02aa9381…
https://git.kernel.org/stable/c/e40115c33c0d79c94…
https://git.kernel.org/stable/c/9960085a3a82c58d3…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6bf32599223634294cdc6efb359ffaab1d68073c , < cdf7efe4b02aa93813db0bf1ca596ad298ab6b06 (git) Affected: 6bf32599223634294cdc6efb359ffaab1d68073c , < e40115c33c0d79c940545b6b12112aace7acd9f5 (git) Affected: 6bf32599223634294cdc6efb359ffaab1d68073c , < 9960085a3a82c58d3323c1c20b991db6045063b0 (git)
Linux	Linux	Affected: 6.3 Unaffected: 0 , < 6.3 (semver) Unaffected: 6.6.49 , ≤ 6.6.* (semver) Unaffected: 6.10.8 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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