CVE-2025-71192

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-71192", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-31T11:36:51.189Z", "datePublished": "2026-02-04T16:00:23.044Z", "dateUpdated": "2026-08-05T12:12:29.458Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:12:29.458Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ac97: fix a double free in snd_ac97_controller_register()\n\nIf ac97_add_adapter() fails, put_device() is the correct way to drop\nthe device reference. kfree() is not required.\nAdd kfree() if idr_alloc() fails and in ac97_adapter_release() to do\nthe cleanup.\n\nFound by code review."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable registration path is reached locally through PXA2xx platform-driver probing or module autoload; network traffic and physical AC\u201997 input cannot reach it.\nAC:H - Exploitation requires the uncommon condition that device registration fail after device initialization, plus favorable heap reuse; an attacker can encourage memory pressure but cannot reliably control these conditions.\nPR:L - A basic local user can initiate ALSA autoload activity and shape memory pressure while kernel or udev performs probing; no attacker-held administrative capability is checked by the vulnerable function.\nUI:N - No separate victim action is required once platform probing or module autoload begins.\nS:U - The corruption occurs within the host kernel and does not cross a separate virtualization, IOMMU, or other security authority.\nC:H - Reusing the multiply freed controller allocation can overlap its embedded struct device with attacker-influenced heap objects, enabling disclosure of kernel pointers and potentially arbitrary kernel memory.\nI:H - Freelist corruption and overlapping allocations can modify kernel objects, including device release and type function pointers, making arbitrary writes and kernel code execution defensible.\nA:H - The double free can immediately trigger allocator corruption detection, an oops, or a kernel panic, and corrupted reuse can crash the system later."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/ac97/bus.c"], "versions": [{"version": "74426fbff66eea8e8d1f42c8238c268d1e63a832", "lessThan": "c80f9b3349a99a9d5b295f5bbc23f544c5995ad7", "status": "affected", "versionType": "git"}, {"version": "74426fbff66eea8e8d1f42c8238c268d1e63a832", "lessThan": "21f8bc5179bed91c3f946adb5e55d717b891960c", "status": "affected", "versionType": "git"}, {"version": "74426fbff66eea8e8d1f42c8238c268d1e63a832", "lessThan": "fcc04c92cbb5497ce67c58dd2f0001bb87f40396", "status": "affected", "versionType": "git"}, {"version": "74426fbff66eea8e8d1f42c8238c268d1e63a832", "lessThan": "cb73d37ac18bc1716690ff5255a0ef1952827e9e", "status": "affected", "versionType": "git"}, {"version": "74426fbff66eea8e8d1f42c8238c268d1e63a832", "lessThan": "830988b6cf197e6dcffdfe2008c5738e6c6c3c0f", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/ac97/bus.c"], "versions": [{"version": "4.15", "status": "affected"}, {"version": "0", "lessThan": "4.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.161", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.121", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.66", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.6", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.1.161"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.6.121"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.12.66"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.18.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c80f9b3349a99a9d5b295f5bbc23f544c5995ad7"}, {"url": "https://git.kernel.org/stable/c/21f8bc5179bed91c3f946adb5e55d717b891960c"}, {"url": "https://git.kernel.org/stable/c/fcc04c92cbb5497ce67c58dd2f0001bb87f40396"}, {"url": "https://git.kernel.org/stable/c/cb73d37ac18bc1716690ff5255a0ef1952827e9e"}, {"url": "https://git.kernel.org/stable/c/830988b6cf197e6dcffdfe2008c5738e6c6c3c0f"}], "title": "ALSA: ac97: fix a double free in snd_ac97_controller_register()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["sound/ac97/bus.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c80f9b3349a99a9d5b295f5bbc23f544c5995ad7", "status": "affected", "version": "74426fbff66eea8e8d1f42c8238c268d1e63a832", "versionType": "git"}, {"lessThan": "21f8bc5179bed91c3f946adb5e55d717b891960c", "status": "affected", "version": "74426fbff66eea8e8d1f42c8238c268d1e63a832", "versionType": "git"}, {"lessThan": "fcc04c92cbb5497ce67c58dd2f0001bb87f40396", "status": "affected", "version": "74426fbff66eea8e8d1f42c8238c268d1e63a832", "versionType": "git"}, {"lessThan": "cb73d37ac18bc1716690ff5255a0ef1952827e9e", "status": "affected", "version": "74426fbff66eea8e8d1f42c8238c268d1e63a832", "versionType": "git"}, {"lessThan": "830988b6cf197e6dcffdfe2008c5738e6c6c3c0f", "status": "affected", "version": "74426fbff66eea8e8d1f42c8238c268d1e63a832", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["sound/ac97/bus.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.15"}, {"lessThan": "4.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.161", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.121", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.66", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.19", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ac97: fix a double free in snd_ac97_controller_register()\n\nIf ac97_add_adapter() fails, put_device() is the correct way to drop\nthe device reference. kfree() is not required.\nAdd kfree() if idr_alloc() fails and in ac97_adapter_release() to do\nthe cleanup.\n\nFound by code review."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nALSA: ac97: correcci\u00f3n de una doble liberaci\u00f3n en snd_ac97_controller_register()\n\nSi ac97_add_adapter() falla, put_device() es la forma correcta de liberar la referencia del dispositivo. kfree() no es necesario.\nA\u00f1adir kfree() si idr_alloc() falla y en ac97_adapter_release() para realizar la limpieza.\n\nEncontrado mediante revisi\u00f3n de c\u00f3digo."}], "id": "CVE-2025-71192", "lastModified": "2026-07-30T06:24:55.620", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-02-04T16:16:18.770", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/21f8bc5179bed91c3f946adb5e55d717b891960c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/830988b6cf197e6dcffdfe2008c5738e6c6c3c0f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c80f9b3349a99a9d5b295f5bbc23f544c5995ad7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cb73d37ac18bc1716690ff5255a0ef1952827e9e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fcc04c92cbb5497ce67c58dd2f0001bb87f40396"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: ALSA: ac97: fix a double free in snd_ac97_controller_register()", "id": "2436772", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2436772"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2025-71192", "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": "2026-02-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-71192\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-71192\nhttps://lore.kernel.org/linux-cve-announce/2026020438-CVE-2025-71192-3370@gregkh/T"]}

{}