Vulnerability-Lookup

GHSA-FJ72-9XHM-3QPX

Vulnerability from github – Published: 2025-10-22 18:30 – Updated: 2025-10-22 18:30

Details

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

wl1251: dynamically allocate memory used for DMA

With introduction of vmap'ed stacks, stack parameters can no longer be used for DMA and now leads to kernel panic.

It happens at several places for the wl1251 (e.g. when accessed through SDIO) making it unuseable on e.g. the OpenPandora.

We solve this by allocating temporary buffers or use wl1251_read32().

Tested on v5.18-rc5 with OpenPandora.

Severity

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-49500"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:26Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwl1251: dynamically allocate memory used for DMA\n\nWith introduction of vmap\u0027ed stacks, stack parameters can no\nlonger be used for DMA and now leads to kernel panic.\n\nIt happens at several places for the wl1251 (e.g. when\naccessed through SDIO) making it unuseable on e.g. the\nOpenPandora.\n\nWe solve this by allocating temporary buffers or use wl1251_read32().\n\nTested on v5.18-rc5 with OpenPandora.",
  "id": "GHSA-fj72-9xhm-3qpx",
  "modified": "2025-10-22T18:30:31Z",
  "published": "2025-10-22T18:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49500"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/454744754cbf2c21b3fc7344e46e10bee2768094"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da03bbfbf5acd1ab0b074617e865ad1e8a5779ef"
    }
  ],
  "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-2022-49500 (GCVE-0-2022-49500)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2026-05-11 19:01

Title

wl1251: dynamically allocate memory used for DMA

Summary

In the Linux kernel, the following vulnerability has been resolved: wl1251: dynamically allocate memory used for DMA With introduction of vmap'ed stacks, stack parameters can no longer be used for DMA and now leads to kernel panic. It happens at several places for the wl1251 (e.g. when accessed through SDIO) making it unuseable on e.g. the OpenPandora. We solve this by allocating temporary buffers or use wl1251_read32(). Tested on v5.18-rc5 with OpenPandora.

Severity

No CVSS data available.

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/da03bbfbf5acd1ab0…
https://git.kernel.org/stable/c/454744754cbf2c21b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a1c510d0adc604bb143c86052bc5be48cbcfa17c , < da03bbfbf5acd1ab0b074617e865ad1e8a5779ef (git) Affected: a1c510d0adc604bb143c86052bc5be48cbcfa17c , < 454744754cbf2c21b3fc7344e46e10bee2768094 (git)
Linux	Linux	Affected: 5.18 Unaffected: 0 , < 5.18 (semver) Unaffected: 5.18.3 , ≤ 5.18.* (semver) Unaffected: 5.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ti/wl1251/event.c",
            "drivers/net/wireless/ti/wl1251/io.c",
            "drivers/net/wireless/ti/wl1251/tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "da03bbfbf5acd1ab0b074617e865ad1e8a5779ef",
              "status": "affected",
              "version": "a1c510d0adc604bb143c86052bc5be48cbcfa17c",
              "versionType": "git"
            },
            {
              "lessThan": "454744754cbf2c21b3fc7344e46e10bee2768094",
              "status": "affected",
              "version": "a1c510d0adc604bb143c86052bc5be48cbcfa17c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ti/wl1251/event.c",
            "drivers/net/wireless/ti/wl1251/io.c",
            "drivers/net/wireless/ti/wl1251/tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.3",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwl1251: dynamically allocate memory used for DMA\n\nWith introduction of vmap\u0027ed stacks, stack parameters can no\nlonger be used for DMA and now leads to kernel panic.\n\nIt happens at several places for the wl1251 (e.g. when\naccessed through SDIO) making it unuseable on e.g. the\nOpenPandora.\n\nWe solve this by allocating temporary buffers or use wl1251_read32().\n\nTested on v5.18-rc5 with OpenPandora."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:01:07.133Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/da03bbfbf5acd1ab0b074617e865ad1e8a5779ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/454744754cbf2c21b3fc7344e46e10bee2768094"
        }
      ],
      "title": "wl1251: dynamically allocate memory used for DMA",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49500",
    "datePublished": "2025-02-26T02:13:34.223Z",
    "dateReserved": "2025-02-26T02:08:31.586Z",
    "dateUpdated": "2026-05-11T19:01:07.133Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-FJ72-9XHM-3QPX

CVE-2022-49500 (GCVE-0-2022-49500)

Tags

Sightings

Nomenclature