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Even though the code setting the flag\nis designed to prevent it, there are subtle cases where the flag could be\ntrue at the mutex_lock stage and false at the mutex_unlock stage. This\nresults in the mutex not being unlocked, resulting in a deadlock.\n\nFix it by making the opt3001_irq() code generally more robust, reading the\nflag into a variable and using the variable value at both stages."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iio: light: opt3001: correcci\u00f3n de interbloqueo debido al acceso simult\u00e1neo a indicadores. La funci\u00f3n IRQ enhebrada de este controlador lee el indicador dos veces: una para bloquear un mutex y otra para desbloquearlo. Aunque el c\u00f3digo que configura el indicador est\u00e1 dise\u00f1ado para evitarlo, existen casos sutiles en los que el indicador podr\u00eda ser verdadero en la etapa mutex_lock y falso en la etapa mutex_unlock. Esto provoca que el mutex no se desbloquee, lo que genera un interbloqueo. Para solucionarlo, haga que el c\u00f3digo opt3001_irq() sea generalmente m\u00e1s robusto, leyendo el indicador en una variable y utilizando el valor de la variable en ambas etapas."}], "id": "CVE-2025-37968", "lastModified": "2025-12-16T20:30:50.253", "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"}]}, "published": "2025-05-20T17:15:47.250", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1d7def97e7eb65865ccc01bbdf4eb9e6bbe8a5b5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2c95c8f0959d0a72575eabf2ff888f47ed6d8b77"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/748ebd8e61d0bc182c331b8df3887af7285c8a8f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7ca84f6a22d50bf8b31efe9eb05f9859947266d7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/957e8be112636d9bc692917286e81e54bd87decc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a9c56ccb7cddfca754291fb24b108a5350a5fbe9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e791bf216c9e236b34dabf514ec0ede140cca719"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f063a28002e3350088b4577c5640882bf4ea17ea"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: iio: light: opt3001: fix deadlock due to concurrent flag access", "id": "2367579", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2367579"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\niio: light: opt3001: fix deadlock due to concurrent flag access\nThe threaded IRQ function in this driver is reading the flag twice: once to\nlock a mutex and once to unlock it. Even though the code setting the flag\nis designed to prevent it, there are subtle cases where the flag could be\ntrue at the mutex_lock stage and false at the mutex_unlock stage. This\nresults in the mutex not being unlocked, resulting in a deadlock.\nFix it by making the opt3001_irq() code generally more robust, reading the\nflag into a variable and using the variable value at both stages."], "name": "CVE-2025-37968", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-37968\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-37968\nhttps://lore.kernel.org/linux-cve-announce/2025052045-CVE-2025-37968-5eb1@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-06-24T09:44:23.364759+00:00", "updated": "2025-06-24T09:44:23.364816+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}