CVE-2025-39870

{"id": "CVE-2025-39870", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d584acdf54f409cb7eae1359ae6c12aaabedeed8", "lessThan": "25e6146c2812487a88f619d5ff6efbdcd5b2bc31", "versionType": "git"}, {"status": "affected", "version": "47846211998a9ffb0fcc08092eb95ac783d2b11a", "lessThan": "df82c7901513fd0fc738052a8e6a330d92cc8ec9", "versionType": "git"}, {"status": "affected", "version": "5fcd392dae6d6aba7dc64ffdbb838ff191315da3", "lessThan": "ec5430d090d0b6ace8fefa290fc37e88930017d2", "versionType": "git"}, {"status": "affected", "version": "3fd2f4bc010cdfbc07dd21018dc65bd9370eb7a4", "lessThan": "9f0e225635475b2285b966271d5e82cba74295b1", "versionType": "git"}, {"status": "affected", "version": "3fd2f4bc010cdfbc07dd21018dc65bd9370eb7a4", "lessThan": "39aaa337449e71a41d4813be0226a722827ba606", "versionType": "git"}, {"status": "affected", "version": "ed2c66000aa64c0d2621864831f0d04c820a1441", "versionType": "git"}, {"status": "affected", "version": "6.1.140", "lessThan": "6.1.153", "versionType": "semver"}, {"status": "affected", "version": "6.6.92", "lessThan": "6.6.107", "versionType": "semver"}, {"status": "affected", "version": "6.12.30", "lessThan": "6.12.48", "versionType": "semver"}, {"status": "affected", "version": "6.14.8", "lessThan": "6.15", "versionType": "semver"}], "programFiles": ["drivers/dma/idxd/init.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.15"}, {"status": "unaffected", "version": "0", "lessThan": "6.15", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.153", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.107", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.48", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.16.8", "versionType": "semver", "lessThanOrEqual": "6.16.*"}, {"status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/dma/idxd/init.c"], "defaultStatus": "affected"}]}], "published": "2025-09-23T06:15:46.240", "references": [{"url": "https://git.kernel.org/stable/c/25e6146c2812487a88f619d5ff6efbdcd5b2bc31", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/39aaa337449e71a41d4813be0226a722827ba606", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9f0e225635475b2285b966271d5e82cba74295b1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/df82c7901513fd0fc738052a8e6a330d92cc8ec9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ec5430d090d0b6ace8fefa290fc37e88930017d2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-415"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix double free in idxd_setup_wqs()\n\nThe clean up in idxd_setup_wqs() has had a couple bugs because the error\nhandling is a bit subtle. It's simpler to just re-write it in a cleaner\nway. The issues here are:\n\n1) If \"idxd->max_wqs\" is <= 0 then we call put_device(conf_dev) when\n \"conf_dev\" hasn't been initialized.\n2) If kzalloc_node() fails then again \"conf_dev\" is invalid. It's\n either uninitialized or it points to the \"conf_dev\" from the\n previous iteration so it leads to a double free.\n\nIt's better to free partial loop iterations within the loop and then\nthe unwinding at the end can handle whole loop iterations. I also\nrenamed the labels to describe what the goto does and not where the goto\nwas located."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndmaengine: idxd: Correcci\u00f3n de doble liberaci\u00f3n en idxd_setup_wqs()\n\nLa limpieza en idxd_setup_wqs() ha tenido un par de errores porque el manejo de errores es un poco sutil. Es m\u00e1s simple simplemente reescribirlo de una manera m\u00e1s limpia. Los problemas aqu\u00ed son:\n\n1) Si 'idxd->max_wqs' es menor o igual que 0, entonces llamamos a put_device(conf_dev) cuando 'conf_dev' no ha sido inicializado.\n2) Si kzalloc_node() falla, entonces nuevamente 'conf_dev' es inv\u00e1lido. Est\u00e1 sin inicializar o apunta al 'conf_dev' de la iteraci\u00f3n anterior, lo que lleva a una doble liberaci\u00f3n.\n\nEs mejor liberar iteraciones parciales del bucle dentro del bucle y luego el desenrollado al final puede manejar iteraciones completas del bucle. Tambi\u00e9n renombr\u00e9 las etiquetas para describir lo que hace el goto y no d\u00f3nde estaba ubicado el goto."}], "lastModified": "2026-10-19T21:10:00.160", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB454072-95EE-497B-BD47-D0E5AF428502", "versionEndExcluding": "6.1.153", "versionStartIncluding": "6.1.140"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F0D6C6AD-255E-4DEC-BFBF-BE391301882F", "versionEndExcluding": "6.6.107", "versionStartIncluding": "6.6.92"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8CA170D6-7672-432A-BFF1-1F441A6AC24C", "versionEndExcluding": "6.12.48", "versionStartIncluding": "6.12.30"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F41DF25A-BF6E-49BA-950C-6BD0DA29BE5A", "versionEndExcluding": "6.15", "versionStartIncluding": "6.14.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3C553B62-BF8E-4B75-B4C8-DA0C5BDAE7D1", "versionEndExcluding": "6.16.8", "versionStartIncluding": "6.15.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1ECC65A-EE37-4479-8E99-4BB68A22A31F"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C300BA32-5854-4B59-A00A-18A402F291D0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "327D22EF-390B-454C-BD31-2ED23C998A1C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C730CD9A-D969-4A8E-9522-162AAF7C0EE9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "39982C4B-716E-4B2F-8196-FA301F47807D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "340BEEA9-D70D-4290-B502-FBB1032353B1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "47E4C5C0-079F-4838-971B-8C503D48FCC2"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}