CVE-2025-23157

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Reset the count so that it always starts from beginning."}], "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 vulnerable parser is reached through the local V4L2 device nodes (/dev/video*) \u2014 session-init parsing on V1 hardware and core-init parsing after a driver-triggered firmware re-init \u2014 plus the HFI shared-memory queue from the on-die video co-processor; there is no network or physical-bus reachability.\nAC:L - No race and no dependence on uncontrolled memory layout: the attacker either supplies a payload with repeated CODEC_SUPPORTED properties (fully attacker-chosen index and value) or, on HFI_VERSION_1XX where codecs_count is never reset, simply loops session init/deinit until the counter exceeds MAX_CODEC_NUM; the driver is enabled in standard arm64/Android/embedded Qualcomm configurations.\nPR:L - Triggering the session-init parse path only requires opening the venus decoder/encoder node and issuing REQBUFS/STREAMON, which any local user in the video group (desktop uaccess ACL) or any Android app with normal mediacodec access can do \u2014 no root or capability is needed.\nUI:N - The attacker's own process drives the ioctl sequence and the firmware message handling runs asynchronously in the driver's IRQ/worker context; no victim action is involved.\nS:U - The out-of-bounds accesses corrupt and disclose kernel heap memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Overflowing into codecs_count makes venus_caps_by_codec() iterate far past core->caps[], and the out-of-bounds hfi_plat_caps contents (formats, profile/levels, capability min/max) are handed back to userspace via V4L2 format and control enumeration, giving a broad kernel memory disclosure; the write primitive further enables leveraged reads.\nI:H - This is an out-of-bounds write with an attacker-controlled index (up to megabytes past a ~30 KB allocation) and attacker-selected power-of-two values, corrupting kernel pointers (core->root, core->ocs) and adjacent heap objects \u2014 a classic primitive for control-flow hijack.\nA:H - Corrupting codecs_count to a huge value causes an immediate unbounded scan of kernel memory, and clobbering the adjacent dentry/of_changeset pointers leads to an oops or panic on next use."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/platform/qcom/venus/hfi_parser.c"], "versions": [{"version": "1a73374a04e555103e5369429a30999114001dda", "lessThan": "e5133a0b25463674903fdc0528e0a29b7267130e", "status": "affected", "versionType": "git"}, {"version": "1a73374a04e555103e5369429a30999114001dda", "lessThan": "2b8b9ea4e26a501eb220ea189e42b4527e65bdfa", "status": "affected", "versionType": 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"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: venus: hfi_parser: add check to avoid out of bound access\n\nThere is a possibility that init_codecs is invoked multiple times during\nmanipulated payload from video firmware. In such case, if codecs_count\ncan get incremented to value more than MAX_CODEC_NUM, there can be OOB\naccess. Reset the count so that it always starts from beginning."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: venus: hfi_parser: a\u00f1adir comprobaci\u00f3n para evitar accesos fuera de los l\u00edmites. Existe la posibilidad de que init_codecs se invoque varias veces durante la manipulaci\u00f3n de la carga \u00fatil del firmware de v\u00eddeo. En tal caso, si codecs_count se incrementa a un valor superior a MAX_CODEC_NUM, puede haber accesos fuera de los l\u00edmites. Restablezca el contador para que siempre comience desde el principio."}], "id": "CVE-2025-23157", "lastModified": "2026-07-30T06:22:17.673", "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": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-05-01T13:15:51.623", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/172bf5a9ef70a399bb227809db78442dc01d9e48"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ad6aa1464b8a5ce5c194458315021e8d216108e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/26bbedd06d85770581fda5d78e78539bb088fad1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2b8b9ea4e26a501eb220ea189e42b4527e65bdfa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/53e376178ceacca3ef1795038b22fc9ef45ff1d3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b2541e29d82da8a0df728aadec3e0a8db55d517b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cb5be9039f91979f8a2fac29f529f746d7848f3e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d4d88ece4ba91df5b02f1d3f599650f9e9fc0f45"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e5133a0b25463674903fdc0528e0a29b7267130e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: media: venus: hfi_parser: add check to avoid out of bound access", "id": "2363287", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363287"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmedia: venus: hfi_parser: add check to avoid out of bound access\nThere is a possibility that init_codecs is invoked multiple times during\nmanipulated payload from video firmware. In such case, if codecs_count\ncan get incremented to value more than MAX_CODEC_NUM, there can be OOB\naccess. Reset the count so that it always starts from beginning."], "name": "CVE-2025-23157", "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": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-23157\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-23157\nhttps://lore.kernel.org/linux-cve-announce/2025050130-CVE-2025-23157-963e@gregkh/T"], "threat_severity": "Moderate"}

{}