CVE-2026-43095

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Some of the IRQ handlers\nstore references to the card and the kcontrols which can then\nfail. Some detail of the crash was explained in [1].\n\nGenerally it is not advised to use devm outside of bus probe, so\nthe code is updated to not use devm. The IRQ requests are not moved\nto bus probe time as it makes passing the snd_soc_component into\nthe IRQs very awkward and would the require a second step once the\ncomponent is available, so it is simpler to just register the IRQs\nat this point, even though that necessitates some manual cleanup."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nASoC: SDCA: Correcci\u00f3n de errores en la limpieza de IRQ\n\nLas IRQ se habilitan a trav\u00e9s de sdca_irq_populate() desde la sonda del componente usando devm_request_threaded_irq(), esto, sin embargo, significa que las IRQ pueden persistir si la tarjeta de sonido se desmonta. Algunos de los manejadores de IRQ almacenan referencias a la tarjeta y a los kcontrols, lo que puede entonces fallar. Alg\u00fan detalle del fallo fue explicado en [1].\n\nGeneralmente no se aconseja usar devm fuera de la sonda del bus, por lo que el c\u00f3digo se actualiza para no usar devm. Las solicitudes de IRQ no se mueven al momento de la sonda del bus, ya que hace que pasar el snd_soc_component a las IRQ sea muy inc\u00f3modo y requerir\u00eda un segundo paso una vez que el componente est\u00e9 disponible, por lo que es m\u00e1s sencillo simplemente registrar las IRQ en este punto, aunque eso necesite alguna limpieza manual."}], "id": "CVE-2026-43095", "lastModified": "2026-11-11T21:10:00.200", "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-2026-43095", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T15:28:30.858501Z", "version": "2.0.3"}}]}, "published": "2026-05-06T10:16:22.913", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4e53116437e919c4b9a9d95fb73ae14fe0cfc8f9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b022da127bd9d2217e8f285e643caf5aff6f7f14"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ASoC: SDCA: Fix errors in IRQ cleanup", "id": "2467016", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467016"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's ASoC SDCA subsystem. This vulnerability involves improper cleanup of Interrupt ReQuests (IRQs) when a sound card is removed. This can lead to IRQ handlers attempting to access invalid memory, which may cause a system crash and result in a Denial of Service (DoS)."], "name": "CVE-2026-43095", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43095\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43095\nhttps://lore.kernel.org/linux-cve-announce/2026050619-CVE-2026-43095-9071@gregkh/T"], "threat_severity": "Moderate"}

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