CVE-2026-72302

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This would allow the\ncdata->rhdr.hdr.size comparison to pass with mismatched sizes,\npotentially leading to out-of-bounds access in snd_sof_update_control.\n\nUse check_mul_overflow() and check_add_overflow() to detect and reject\noverflowed size calculations."}], "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 flaw is reached when the on-chip SOF DSP delivers IPC3 GET_VALUE/GET_DATA component notifications via mailbox IRQ into sof_ipc3_control_update(); this requires local access to SOF-equipped audio hardware, not remote network delivery.\nAC:L - On affected 32-bit builds, firmware-supplied num_elems deterministically wraps expected_size so the hdr.size check passes; a local attacker can repeatedly drive DSP control notifications through ALSA without uncontrollable races or victim-specific state.\nPR:L - Only an unprivileged local user able to open ALSA control devices on SOF IPC3 hardware (typical audio-group access on laptops, Chromebooks, and 32-bit embedded tablets) is needed to exercise DSP control paths that deliver the malformed IPC payloads.\nUI:N - No separate victim interaction is required; the attacker triggers SOF control-update handling through their own ALSA audio/control activity and the kernel processes the malformed IPC notification automatically.\nS:U - Heap corruption and control-cache overread/overwrite remain within the host kernel audio driver on the same machine and do not cross VM, container, or IOMMU boundaries into another security authority.\nC:H - Bypassed size validation lets snd_sof_update_control() read chanv/binary data past the kmalloc IPC buffer via loops or memcpy, yielding out-of-bounds kernel heap reads that can disclose adjacent memory contents.\nI:H - Crafted num_elems drives out-of-bounds copying from the IPC message into control caches, corrupting kernel heap objects and enabling attacker-influenced writes exploitable for further privilege escalation.\nA:H - Out-of-bounds accesses during IRQ-threaded IPC3 control-update handling can cause KASAN faults, unhandled page faults, kernel oops, or panic under realistic SOF audio workloads on 32-bit systems."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/soc/sof/ipc3-control.c"], "versions": [{"version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "lessThan": "6856b3c23b0995eefad5a6142b4365ef70e1fe4a", "status": "affected", "versionType": "git"}, {"version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "lessThan": "89a2309a9eec80d4c19e3aed62c4f923594d1911", "status": "affected", "versionType": "git"}, {"version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "lessThan": "ffd79e77f2fbacd7a5d40ad1d4c7f3f089a8f2f3", "status": "affected", "versionType": "git"}, {"version": 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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": "6856b3c23b0995eefad5a6142b4365ef70e1fe4a", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}, {"lessThan": "89a2309a9eec80d4c19e3aed62c4f923594d1911", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}, {"lessThan": "ffd79e77f2fbacd7a5d40ad1d4c7f3f089a8f2f3", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}, {"lessThan": "711d912b18763af62a63aa8f2419a774eb63bba4", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}, {"lessThan": "312c7d2ebe696da3f885eee77d52297664e57c53", "status": "affected", "version": "10f461d79c2d1afb22344986cc1b4631169cf25e", "versionType": "git"}, {"lessThan": "8791977d7289f6e9d2b014f60a5455f053a7bc04", "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: Use overflow checks in control_update size calc\n\nIn sof_ipc3_control_update(), the expected_size calculation uses\nfirmware-provided cdata->num_elems in arithmetic that could overflow\non 32-bit platforms, wrapping to a small value. This would allow the\ncdata->rhdr.hdr.size comparison to pass with mismatched sizes,\npotentially leading to out-of-bounds access in snd_sof_update_control.\n\nUse check_mul_overflow() and check_add_overflow() to detect and reject\noverflowed size calculations."}], "id": "CVE-2026-72302", "lastModified": "2026-10-16T19:17:20.550", "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-2026-72302", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T18:46:13.914828Z", "version": "2.0.3"}}]}, "published": "2026-08-15T06:22:02.917", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/312c7d2ebe696da3f885eee77d52297664e57c53"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6856b3c23b0995eefad5a6142b4365ef70e1fe4a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/711d912b18763af62a63aa8f2419a774eb63bba4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8791977d7289f6e9d2b014f60a5455f053a7bc04"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/89a2309a9eec80d4c19e3aed62c4f923594d1911"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ffd79e77f2fbacd7a5d40ad1d4c7f3f089a8f2f3"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ASoC: SOF: ipc3-control: Use overflow checks in control_update size calc", "id": "2516415", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516415"}, "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-787", "details": ["A flaw was found in the Linux kernel, specifically within the ASoC Sound Open Firmware (SOF) component. An integer overflow vulnerability exists in the `sof_ipc3_control_update()` function when calculating an expected size based on firmware-provided data on 32-bit systems. This flaw can lead to memory corruption, where the system attempts to write data beyond its allocated buffer. Such an issue could potentially allow a local attacker to gain elevated privileges or cause the system to crash, leading to a denial of service."], "name": "CVE-2026-72302", "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72302\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72302\nhttps://lore.kernel.org/linux-cve-announce/2026081502-CVE-2026-72302-7b7f@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,6856b3c23b0995eefad5a6142b4365ef70e1fe4a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,89a2309a9eec80d4c19e3aed62c4f923594d1911)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,ffd79e77f2fbacd7a5d40ad1d4c7f3f089a8f2f3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,711d912b18763af62a63aa8f2419a774eb63bba4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,312c7d2ebe696da3f885eee77d52297664e57c53)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10f461d79c2d1afb22344986cc1b4631169cf25e,8791977d7289f6e9d2b014f60a5455f053a7bc04)"}}], "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": "semver", "value": "[0,5.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "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": "2026-08-15T10:30:05.218968+00:00", "updated": "2026-08-17T19:45:04.935062+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-119", "CWE-787"]}