CVE-2026-72261

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If local_cdata->data->size was previously set to an\ninconsistent value, the memcpy could write past the allocated buffer.\n\nAdd a bounds check to ensure num_elems fits within the available space\nin the ipc_control_data allocation before copying."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The bug is reached on local SOF/IPC3 systems when DSP firmware sends SOF_IPC_GLB_COMP_MSG notifications that flow through sof_ipc3_rx_msg() to sof_ipc3_control_update() and snd_sof_update_control(); setup uses local ALSA ioctl/TLV on /dev/snd/controlC*, not remote network input.\nAC:L - An attacker can create the inconsistent local_cdata->data->size via ALSA bytes put/get IPC to the DSP and then reliably provoke matching firmware control notifications by driving audio activity; no uncontrollable memory layout or victim timing is required.\nPR:L - 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["sound/soc/sof/ipc3-control.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "1dc25a3e06364f48c4ef06016852f8b82425151a", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}, {"lessThan": "ee781058cd4d71e4449f41cbe6a3b8c59daa2c51", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}, {"lessThan": "ecf67f1302f2080b4d241b973364aacda70ad740", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}, {"lessThan": "d3abaedf6a58469610136d2dace1a85cddf7afcf", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}, {"lessThan": "2a591bf6fd41fd14bdae689aafac4a9ee702c23c", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}, {"lessThan": "390aa4c9339bb0ec0bc8d554e830faf93ca9d49e", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["sound/soc/sof/ipc3-control.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.18"}, {"lessThan": "5.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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\nASoC: SOF: ipc3-control: Validate size in snd_sof_update_control\n\nIn snd_sof_update_control(), firmware-provided cdata->num_elems is\nchecked against local_cdata->data->size but never against the actual\nallocation size. If local_cdata->data->size was previously set to an\ninconsistent value, the memcpy could write past the allocated buffer.\n\nAdd a bounds check to ensure num_elems fits within the available space\nin the ipc_control_data allocation before copying."}], "id": "CVE-2026-72261", "lastModified": "2026-10-16T19:17:17.973", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-72261", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T18:45:28.490975Z", "version": "2.0.3"}}]}, "published": "2026-08-15T06:21:54.257", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1dc25a3e06364f48c4ef06016852f8b82425151a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2a591bf6fd41fd14bdae689aafac4a9ee702c23c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/390aa4c9339bb0ec0bc8d554e830faf93ca9d49e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d3abaedf6a58469610136d2dace1a85cddf7afcf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ecf67f1302f2080b4d241b973364aacda70ad740"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ee781058cd4d71e4449f41cbe6a3b8c59daa2c51"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ASoC: SOF: ipc3-control: Validate size in snd_sof_update_control", "id": "2516527", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516527"}, "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-120", "details": ["A flaw was found in the Linux kernel's Sound Open Firmware (SOF) subsystem, specifically within the `ipc3-control` component. This vulnerability occurs in the `snd_sof_update_control()` function where the size of firmware-provided data is not properly validated against the allocated buffer size. An attacker could exploit this by providing a malformed size, leading to a buffer overflow. This could result in memory corruption, potentially causing system instability or a denial of service."], "name": "CVE-2026-72261", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72261\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72261\nhttps://lore.kernel.org/linux-cve-announce/2026081555-CVE-2026-72261-b28a@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,1dc25a3e06364f48c4ef06016852f8b82425151a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,ee781058cd4d71e4449f41cbe6a3b8c59daa2c51)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,ecf67f1302f2080b4d241b973364aacda70ad740)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,d3abaedf6a58469610136d2dace1a85cddf7afcf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,2a591bf6fd41fd14bdae689aafac4a9ee702c23c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,390aa4c9339bb0ec0bc8d554e830faf93ca9d49e)"}}], "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": "5.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "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": "2026-08-15T18:15:03.672043+00:00", "updated": "2026-08-22T07:30:17.375958+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-122", "CWE-119", "CWE-120"]}