CVE-2025-71286

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An attacker reaches the undersized IPC4 bytes-control buffer through ALSA ioctls on a local /dev/snd/controlC* device; no network or physical attack path exists.\nAC:L - Writable production controls commonly use allocator-boundary maxima such as 1024 bytes, and a malformed nested TLV deterministically produces an attacker-controlled heap overflow without a race or firmware interaction.\nPR:L - The path requires ordinary unprivileged access to the ALSA control device, commonly granted to the active desktop user or audio group, and performs no capability or namespace privilege check.\nUI:N - After obtaining local ALSA control-device access, the attacker can issue the malicious TLV ioctl directly without any victim action.\nS:U - The vulnerable ALSA/SOF driver and the affected kernel resources share the same security authority; ordinary kernel privilege escalation does not change CVSS scope.\nC:H - The size mismatch permits an adjacent heap out-of-bounds read through the TLV get path, while heap corruption can also be leveraged to disclose sensitive kernel memory.\nI:H - The TLV write path copies attacker-controlled bytes past the undersized allocation, providing a controlled adjacent heap overwrite that can plausibly corrupt pointers or enable control-flow hijacking.\nA:H - The heap overflow can corrupt adjacent kernel objects and cause an oops or panic, and it can be triggered repeatedly through the control ioctl."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/soc/sof/ipc4-topology.c"], "versions": [{"version": "a382082ff74b036944cbc5b6ad29b65f633acd3a", "lessThan": "59fe643f21b9d59bcbedb0dfbf988ee455c23736", "status": "affected", "versionType": "git"}, {"version": "a382082ff74b036944cbc5b6ad29b65f633acd3a", "lessThan": "491956b45b5f4933632ea6d8a8bdfdf045ab81e1", "status": "affected", "versionType": "git"}, {"version": "a382082ff74b036944cbc5b6ad29b65f633acd3a", "lessThan": "a704a1a4394b5877b9adc31b2c3165ad0b541896", "status": "affected", "versionType": "git"}, {"version": "a382082ff74b036944cbc5b6ad29b65f633acd3a", "lessThan": "1237cd9ff198cb882402572f29569e5247190974", "status": "affected", "versionType": "git"}, {"version": "a382082ff74b036944cbc5b6ad29b65f633acd3a", "lessThan": "a653820700b81c9e6f05ac23b7969ecec1a18e85", "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/soc/sof/ipc4-topology.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.4", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/59fe643f21b9d59bcbedb0dfbf988ee455c23736"}, {"url": "https://git.kernel.org/stable/c/491956b45b5f4933632ea6d8a8bdfdf045ab81e1"}, {"url": "https://git.kernel.org/stable/c/a704a1a4394b5877b9adc31b2c3165ad0b541896"}, {"url": "https://git.kernel.org/stable/c/1237cd9ff198cb882402572f29569e5247190974"}, {"url": "https://git.kernel.org/stable/c/a653820700b81c9e6f05ac23b7969ecec1a18e85"}], "title": "ASoC: SOF: ipc4-topology: Correct the allocation size for bytes controls", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-71286", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:06:19.543117Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-131", "description": "CWE-131 Incorrect Calculation of Buffer Size"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T18:25:25.461Z"}}]}}

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has been resolved:\n\nASoC: SOF: ipc4-topology: Correct the allocation size for bytes controls\n\nThe size of the data behind of scontrol->ipc_control_data for bytes\ncontrols is:\n[1] sizeof(struct sof_ipc4_control_data) + // kernel only struct\n[2] sizeof(struct sof_abi_hdr)) + payload\n\nThe max_size specifies the size of [2] and it is coming from topology.\n\nChange the function to take this into account and allocate adequate amount\nof memory behind scontrol->ipc_control_data.\n\nWith the change we will allocate [1] amount more memory to be able to hold\nthe full size of data."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nASoC: SOF: ipc4-topology: Corregir el tama\u00f1o de asignaci\u00f3n para controles de bytes\n\nEl tama\u00f1o de los datos detr\u00e1s de scontrol -> ipc_control_data para controles de bytes es:\n[1] sizeof(struct sof_ipc4_control_data) + // estructura solo del kernel\n[2] sizeof(struct sof_abi_hdr)) + carga \u00fatil\n\nEl max_size especifica el tama\u00f1o de [2] y proviene de la topolog\u00eda.\n\nCambiar la funci\u00f3n para tener esto en cuenta y asignar una cantidad adecuada de memoria detr\u00e1s de scontrol -> ipc_control_data.\n\nCon el cambio, asignaremos una cantidad [1] m\u00e1s de memoria para poder contener el tama\u00f1o completo de los datos."}], "id": "CVE-2025-71286", "lastModified": "2026-10-19T19:17:18.637", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": 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{"bugzilla": {"description": "kernel: ASoC: SOF: ipc4-topology: Correct the allocation size for bytes controls", "id": "2467236", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467236"}, "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-131", "details": ["A flaw was found in the Linux kernel, specifically within the Advanced Linux Sound Architecture (ALSA) Sound Open Firmware (SOF) `ipc4-topology` component. An incorrect calculation of memory allocation size for `bytes controls` can occur. This memory allocation error could lead to memory corruption, potentially allowing a local attacker to cause a denial of service, leading to system instability or a crash."], "name": "CVE-2025-71286", "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": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-71286\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-71286\nhttps://lore.kernel.org/linux-cve-announce/2026050630-CVE-2025-71286-9591@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a382082ff74b036944cbc5b6ad29b65f633acd3a,59fe643f21b9d59bcbedb0dfbf988ee455c23736)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a382082ff74b036944cbc5b6ad29b65f633acd3a,491956b45b5f4933632ea6d8a8bdfdf045ab81e1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a382082ff74b036944cbc5b6ad29b65f633acd3a,a704a1a4394b5877b9adc31b2c3165ad0b541896)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a382082ff74b036944cbc5b6ad29b65f633acd3a,1237cd9ff198cb882402572f29569e5247190974)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a382082ff74b036944cbc5b6ad29b65f633acd3a,a653820700b81c9e6f05ac23b7969ecec1a18e85)"}}], "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": "6.4"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.4)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.128,7.0.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,7.0.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.16,7.0.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.6,7.0.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "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": "2026-05-06T13:30:04.429400+00:00", "updated": "2026-08-04T08:45:06.028262+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}