Vulnerability-Lookup

GHSA-QM6M-JH59-WXWP

Vulnerability from github – Published: 2024-05-21 18:31 – Updated: 2025-01-06 21:30

Details

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

spi: Fix null dereference on suspend

A race condition exists where a synchronous (noqueue) transfer can be active during a system suspend. This can cause a null pointer dereference exception to occur when the system resumes.

Example order of events leading to the exception: 1. spi_sync() calls __spi_transfer_message_noqueue() which sets ctlr->cur_msg 2. Spi transfer begins via spi_transfer_one_message() 3. System is suspended interrupting the transfer context 4. System is resumed 6. spi_controller_resume() calls spi_start_queue() which resets cur_msg to NULL 7. Spi transfer context resumes and spi_finalize_current_message() is called which dereferences cur_msg (which is now NULL)

Wait for synchronous transfers to complete before suspending by acquiring the bus mutex and setting/checking a suspend flag.

Severity

4.7 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52749"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T16:15:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: Fix null dereference on suspend\n\nA race condition exists where a synchronous (noqueue) transfer can be\nactive during a system suspend. This can cause a null pointer\ndereference exception to occur when the system resumes.\n\nExample order of events leading to the exception:\n1. spi_sync() calls __spi_transfer_message_noqueue() which sets\n   ctlr-\u003ecur_msg\n2. Spi transfer begins via spi_transfer_one_message()\n3. System is suspended interrupting the transfer context\n4. System is resumed\n6. spi_controller_resume() calls spi_start_queue() which resets cur_msg\n   to NULL\n7. Spi transfer context resumes and spi_finalize_current_message() is\n   called which dereferences cur_msg (which is now NULL)\n\nWait for synchronous transfers to complete before suspending by\nacquiring the bus mutex and setting/checking a suspend flag.",
  "id": "GHSA-qm6m-jh59-wxwp",
  "modified": "2025-01-06T21:30:49Z",
  "published": "2024-05-21T18:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52749"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ec4508db97502a12daee88c74782e8d35ced068"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/96474ea47dc67b0704392d59192b233c8197db0e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bef4a48f4ef798c4feddf045d49e53c8a97d5e37"
    }
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  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-52749 (GCVE-0-2023-52749)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:30 – Updated: 2026-05-11 19:32

Title

spi: Fix null dereference on suspend

Summary

In the Linux kernel, the following vulnerability has been resolved: spi: Fix null dereference on suspend A race condition exists where a synchronous (noqueue) transfer can be active during a system suspend. This can cause a null pointer dereference exception to occur when the system resumes. Example order of events leading to the exception: 1. spi_sync() calls __spi_transfer_message_noqueue() which sets ctlr->cur_msg 2. Spi transfer begins via spi_transfer_one_message() 3. System is suspended interrupting the transfer context 4. System is resumed 6. spi_controller_resume() calls spi_start_queue() which resets cur_msg to NULL 7. Spi transfer context resumes and spi_finalize_current_message() is called which dereferences cur_msg (which is now NULL) Wait for synchronous transfers to complete before suspending by acquiring the bus mutex and setting/checking a suspend flag.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/4ec4508db97502a12…
https://git.kernel.org/stable/c/96474ea47dc67b070…
https://git.kernel.org/stable/c/bef4a48f4ef798c4f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ae7d2346dc89ae89a6e0aabe6037591a11e593c0 , < 4ec4508db97502a12daee88c74782e8d35ced068 (git) Affected: ae7d2346dc89ae89a6e0aabe6037591a11e593c0 , < 96474ea47dc67b0704392d59192b233c8197db0e (git) Affected: ae7d2346dc89ae89a6e0aabe6037591a11e593c0 , < bef4a48f4ef798c4feddf045d49e53c8a97d5e37 (git)
Linux	Linux	Affected: 6.0 Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.66 , ≤ 6.1.* (semver) Unaffected: 6.6.3 , ≤ 6.6.* (semver) Unaffected: 6.7 , ≤ * (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.

Action not permitted

GHSA-QM6M-JH59-WXWP

CVE-2023-52749 (GCVE-0-2023-52749)

Tags

Sightings

Nomenclature