CVE-2026-46092

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If\n8821CE is installed in the system with such a PCI topology, the probing\nroutine will crash. This has probably been unnoticed as 8821CE is mostly\nsupplied in laptops where there is a PCI-to-PCI bridge located upstream\nfrom the device. However the card might be installed on a system with\ndifferent configuration.\n\nCheck if the bridge does exist for the specific workaround to be applied.\n\nFound by Linux Verification Center (linuxtesting.org) with Svace static\nanalysis tool."}], "id": "CVE-2026-46092", "lastModified": "2026-11-06T17:17:37.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-46092", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:08:20.866557Z", "version": "2.0.3"}}]}, "published": "2026-05-27T14:17:30.757", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/000134a20bbf89b1152520a2eef71f91fdb83a5b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3b89b4c095804c478d50376285e66700cf3c045f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3bbbb56204f7359ce2139a9341b43b52a186261c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6c53d68e3bcfc8faccdd76c3383a9232b05c9ae6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/959c13da6c36167ce1016d400a6104d2367f686e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cc9b6303e7ea91bc360b42c7edc1fe9ceb2f47fe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/eb101d2abdcccb514ca4fccd3b278dd8267374f6"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: wifi: rtw88: check for PCI upstream bridge existence", "id": "2482162", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482162"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A flaw was found in the Linux kernel's `rtw88` Wi-Fi driver. When the `8821CE` device is installed on a system where it is on a root bus, the driver's probing routine does not properly check for the existence of a PCI upstream bridge. This oversight can lead to a system crash, resulting in a denial of service. This vulnerability occurs during device initialization if the specific PCI topology is present."], "name": "CVE-2026-46092", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46092\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46092\nhttps://lore.kernel.org/linux-cve-announce/2026052703-CVE-2026-46092-7130@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24f5e38a13b5ae2b6105cda8bb47c19108e62a9a,eb101d2abdcccb514ca4fccd3b278dd8267374f6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[617339466fda09916c4b4151fa5e6a9c1fdae353,*]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f21e8cb927fa9da49490b74ddda3856a828b82d6,*]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.15.17,5.16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.16.3,5.17)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-27T18:00:15.755966+00:00", "updated": "2026-05-28T03:45:06.300141+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}