Vulnerability-Lookup

GHSA-7G5X-2QHH-7XCV

Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-18 18:31

Details

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

wifi: rtlwifi: pci: fix error path in rtl_pci_probe()

In the last error path in rtl_pci_probe(), the cleanup functions are skipped due to a wrong goto label. Moreover, the successful call to rtl_init_rfkill(), ieee80211_register_hw(), rtl_debug_add_one() have to be reverted. Fix this issue by updating the labels and adding the relevant cleanup functions to the last error path.

Severity

7.0 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-90403"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:17:40Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtlwifi: pci: fix error path in rtl_pci_probe()\n\nIn the last error path in rtl_pci_probe(), the cleanup functions are\nskipped due to a wrong goto label. Moreover, the successful call to\nrtl_init_rfkill(), ieee80211_register_hw(), rtl_debug_add_one() have to\nbe reverted. Fix this issue by updating the labels and adding the\nrelevant cleanup functions to the last error path.",
  "id": "GHSA-7g5x-2qhh-7xcv",
  "modified": "2026-09-18T18:31:31Z",
  "published": "2026-09-17T18:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90403"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b68b6e529ce75112fab98e89583a76370ca394b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2634998247d24be34ba16a7666f31815ef1da00b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c2999d13eeb222ae56631aeb7ca248090f2b210"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86e6187f8525c8f8219eb49e022eba854cc6ab86"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a89818977338ba71194b1ab1d071f0c0848b1e13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aef178ffae5420afdbf46f7133ed28bd4248e15c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b42fcfb097da46f0e86564736ced939e83cb8442"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cfd6824dd1d151ab3abc00117b3774c8056006e0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-90403 (GCVE-0-2026-90403)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:09 – Updated: 2026-09-18 17:55

Title

wifi: rtlwifi: pci: fix error path in rtl_pci_probe()

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: rtlwifi: pci: fix error path in rtl_pci_probe() In the last error path in rtl_pci_probe(), the cleanup functions are skipped due to a wrong goto label. Moreover, the successful call to rtl_init_rfkill(), ieee80211_register_hw(), rtl_debug_add_one() have to be reverted. Fix this issue by updating the labels and adding the relevant cleanup functions to the last error path.

Severity

7 (High)


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

Assigner

Linux mitre root Scorecard

References

8 references

URL	Tags
https://git.kernel.org/stable/c/2634998247d24be34…
https://git.kernel.org/stable/c/cfd6824dd1d151ab3…
https://git.kernel.org/stable/c/86e6187f8525c8f82…
https://git.kernel.org/stable/c/aef178ffae5420afd…
https://git.kernel.org/stable/c/b42fcfb097da46f0e…
https://git.kernel.org/stable/c/a89818977338ba711…
https://git.kernel.org/stable/c/1b68b6e529ce75112…
https://git.kernel.org/stable/c/3c2999d13eeb222ae…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0c8173385e549f95cd80c3fff5aab87b4f881d8d , < 2634998247d24be34ba16a7666f31815ef1da00b (git) Affected: 0c8173385e549f95cd80c3fff5aab87b4f881d8d , < cfd6824dd1d151ab3abc00117b3774c8056006e0 (git) Affected: 0c8173385e549f95cd80c3fff5aab87b4f881d8d , < 86e6187f8525c8f8219eb49e022eba854cc6ab86 (git) Affected: 0c8173385e549f95cd80c3fff5aab87b4f881d8d , < aef178ffae5420afdbf46f7133ed28bd4248e15c (git) Affected: 0c8173385e549f95cd80c3fff5aab87b4f881d8d , < b42fcfb097da46f0e86564736ced939e83cb8442 (git) Affected: 0c8173385e549f95cd80c3fff5aab87b4f881d8d , < a89818977338ba71194b1ab1d071f0c0848b1e13 (git) Affected: 0c8173385e549f95cd80c3fff5aab87b4f881d8d , < 1b68b6e529ce75112fab98e89583a76370ca394b (git) Affected: 0c8173385e549f95cd80c3fff5aab87b4f881d8d , < 3c2999d13eeb222ae56631aeb7ca248090f2b210 (git)
Linux	Linux	Affected: 2.6.38 Unaffected: 0 , < 2.6.38 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/realtek/rtlwifi/pci.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2634998247d24be34ba16a7666f31815ef1da00b",
              "status": "affected",
              "version": "0c8173385e549f95cd80c3fff5aab87b4f881d8d",
              "versionType": "git"
            },
            {
              "lessThan": "cfd6824dd1d151ab3abc00117b3774c8056006e0",
              "status": "affected",
              "version": "0c8173385e549f95cd80c3fff5aab87b4f881d8d",
              "versionType": "git"
            },
            {
              "lessThan": "86e6187f8525c8f8219eb49e022eba854cc6ab86",
              "status": "affected",
              "version": "0c8173385e549f95cd80c3fff5aab87b4f881d8d",
              "versionType": "git"
            },
            {
              "lessThan": "aef178ffae5420afdbf46f7133ed28bd4248e15c",
              "status": "affected",
              "version": "0c8173385e549f95cd80c3fff5aab87b4f881d8d",
              "versionType": "git"
            },
            {
              "lessThan": "b42fcfb097da46f0e86564736ced939e83cb8442",
              "status": "affected",
              "version": "0c8173385e549f95cd80c3fff5aab87b4f881d8d",
              "versionType": "git"
            },
            {
              "lessThan": "a89818977338ba71194b1ab1d071f0c0848b1e13",
              "status": "affected",
              "version": "0c8173385e549f95cd80c3fff5aab87b4f881d8d",
              "versionType": "git"
            },
            {
              "lessThan": "1b68b6e529ce75112fab98e89583a76370ca394b",
              "status": "affected",
              "version": "0c8173385e549f95cd80c3fff5aab87b4f881d8d",
              "versionType": "git"
            },
            {
              "lessThan": "3c2999d13eeb222ae56631aeb7ca248090f2b210",
              "status": "affected",
              "version": "0c8173385e549f95cd80c3fff5aab87b4f881d8d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/realtek/rtlwifi/pci.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.38"
            },
            {
              "lessThan": "2.6.38",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.270",
                  "versionStartIncluding": "2.6.38",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "2.6.38",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "2.6.38",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "2.6.38",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "2.6.38",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "2.6.38",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "2.6.38",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "2.6.38",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtlwifi: pci: fix error path in rtl_pci_probe()\n\nIn the last error path in rtl_pci_probe(), the cleanup functions are\nskipped due to a wrong goto label. Moreover, the successful call to\nrtl_init_rfkill(), ieee80211_register_hw(), rtl_debug_add_one() have to\nbe reverted. Fix this issue by updating the labels and adding the\nrelevant cleanup functions to the last error path."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The UAF is only on rtl_pci_probe()\u0027s last error path, when rtl_pci_intr_mode_decide() fails and the old code jumped to fail3. That path is reached from local_pci_probe() as the .probe of rtl8192ce/rtl8188ee/rtl8192ee/rtl8723be and related pci_driver tables (e.g. Realtek 0x8191/0x8178). 802.11 frames never enter rtl_pci_probe.\nAC:H - The only trigger is pci_enable_msi() or request_irq(pdev-\u003eirq, _rtl_pci_interrupt, IRQF_SHARED) failing after ieee80211_register_hw() has already succeeded. pdev-\u003eirq is assigned by the host PCI/ACPI code, and the subsequent irqaction kzalloc is tiny compared with earlier ring and wiphy allocations, so an attacker cannot reliably force that failure.\nPR:L - Once fail3 has run ieee80211_free_hw() on the still-registered hw, the leftover default wlan vif from ieee80211_if_add(), cfg80211 wiphy, inetaddr notifiers, and rfkill poll are reachable via nl80211 or any netns address change without init-namespace root or PCI sysfs bind.\nUI:N - No victim must mount media or associate to a network; after the failed probe unwind, the attacker\u2019s own nl80211 use of the leftover wlan vif, an inetaddr change, or cfg80211_rfkill_poll touches the still-registered ieee80211_local.\nS:U - ieee80211_free_hw() frees the still-registered ieee80211_local/wiphy while mac80211 still holds it; impact is host-kernel heap corruption, not a VM, IOMMU, or sandbox escape.\nC:H - fail3 calls ieee80211_free_hw() without ieee80211_unregister_hw(), so cfg80211_rfkill_poll \u2192 ieee80211_rfkill_poll and nl80211 still dereference the kfree\u0027d ieee80211_local, wiphy bands, and default STA vif, a UAF read primitive.\nI:H - The leftover objects are written by ieee80211_ifa_changed (inetaddr notifier), mac80211 workqueues never torn down by ieee80211_unregister_hw(), and rtl_op_rfkill_poll via wiphy_rfkill_start_polling, enabling UAF writes and control-flow hijack.\nA:H - ieee80211_free_hw() without ieee80211_unregister_hw() leaves mac80211 workqueues, inetaddr notifiers, the default wlan vif, and rfkill polling running against freed ieee80211_local, which oopses or panics on the next access."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-18T17:55:10.835Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2634998247d24be34ba16a7666f31815ef1da00b"
        },
        {
          "url": "https://git.kernel.org/stable/c/cfd6824dd1d151ab3abc00117b3774c8056006e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/86e6187f8525c8f8219eb49e022eba854cc6ab86"
        },
        {
          "url": "https://git.kernel.org/stable/c/aef178ffae5420afdbf46f7133ed28bd4248e15c"
        },
        {
          "url": "https://git.kernel.org/stable/c/b42fcfb097da46f0e86564736ced939e83cb8442"
        },
        {
          "url": "https://git.kernel.org/stable/c/a89818977338ba71194b1ab1d071f0c0848b1e13"
        },
        {
          "url": "https://git.kernel.org/stable/c/1b68b6e529ce75112fab98e89583a76370ca394b"
        },
        {
          "url": "https://git.kernel.org/stable/c/3c2999d13eeb222ae56631aeb7ca248090f2b210"
        }
      ],
      "title": "wifi: rtlwifi: pci: fix error path in rtl_pci_probe()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90403",
    "datePublished": "2026-09-17T16:09:32.824Z",
    "dateReserved": "2026-09-11T19:38:34.811Z",
    "dateUpdated": "2026-09-18T17:55:10.835Z",
    "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.

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-7G5X-2QHH-7XCV

CVE-2026-90403 (GCVE-0-2026-90403)

Tags

Sightings

Nomenclature

Related by attack behaviour