{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23208",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.986Z",
        "datePublished": "2026-02-14T16:27:30.441Z",
        "dateUpdated": "2026-05-23T16:04:12.229Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:04:12.229Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Prevent excessive number of frames\n\nIn this case, the user constructed the parameters with maxpacksize 40\nfor rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer\nsize for each data URB is maxpacksize * packets, which in this example\nis 40 * 6 = 240; When the user performs a write operation to send audio\ndata into the ALSA PCM playback stream, the calculated number of frames\nis packsize[0] * packets = 264, which exceeds the allocated URB buffer\nsize, triggering the out-of-bounds (OOB) issue reported by syzbot [1].\n\nAdded a check for the number of single data URB frames when calculating\nthe number of frames to prevent [1].\n\n[1]\nBUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\nWrite of size 264 at addr ffff88804337e800 by task syz.0.17/5506\nCall Trace:\n copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\n prepare_playback_urb+0x953/0x13d0 sound/usb/pcm.c:1611\n prepare_outbound_urb+0x377/0xc50 sound/usb/endpoint.c:333"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/usb/pcm.c"
                    ],
                    "versions": [
                        {
                            "version": "02c56650f3c118d3752122996d96173d26bb13aa",
                            "lessThan": "480a1490c595a242f27493a4544b3efb21b29f6a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ef30e443e6d3654cccecec99cf481a69a0a6d3b",
                            "lessThan": "ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "99703c921864a318e3e8aae74fde071b1ff35bea",
                            "lessThan": "282aba56713bbc58155716b55ca7222b2d9cf3c8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2d50acd7dbd0682a56968ad9551341d7fc5b6eaf",
                            "lessThan": "c4dc012b027c9eb101583011089dea14d744e314",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "aba41867dd66939d336fdf604e4d73b805d8039f",
                            "lessThan": "e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d288dc74f8cf95cb7ae0aaf245b7128627a49bf3",
                            "lessThan": "d67dde02049e632ba58d3c44a164a74b6a737154",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f0bd62b64016508938df9babe47f65c2c727d25c",
                            "lessThan": "62932d9ed639a9fa71b4ac1a56766a4b43abb7e4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f0bd62b64016508938df9babe47f65c2c727d25c",
                            "lessThan": "ef5749ef8b307bf8717945701b1b79d036af0a15",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4.4.229",
                            "lessThan": "4.4.230",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.229",
                            "lessThan": "4.9.230",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.186",
                            "lessThan": "4.14.188",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.130",
                            "lessThan": "4.19.132",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.49",
                            "lessThan": "5.4.51",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.7.6",
                            "lessThan": "5.7.8",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/usb/pcm.c"
                    ],
                    "versions": [
                        {
                            "version": "5.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.4.230",
                            "lessThanOrEqual": "4.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.230",
                            "lessThanOrEqual": "4.9.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.188",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.132",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.51",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.7.8",
                            "lessThanOrEqual": "5.7.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.10",
                            "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": "4.4.229",
                                    "versionEndExcluding": "4.4.230"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9.229",
                                    "versionEndExcluding": "4.9.230"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14.186",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19.130",
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4.49",
                                    "versionEndExcluding": "5.4.51"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7.6",
                                    "versionEndExcluding": "5.7.8"
                                },
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.18.10"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.19"
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/480a1490c595a242f27493a4544b3efb21b29f6a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41"
                },
                {
                    "url": "https://git.kernel.org/stable/c/282aba56713bbc58155716b55ca7222b2d9cf3c8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c4dc012b027c9eb101583011089dea14d744e314"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d67dde02049e632ba58d3c44a164a74b6a737154"
                },
                {
                    "url": "https://git.kernel.org/stable/c/62932d9ed639a9fa71b4ac1a56766a4b43abb7e4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ef5749ef8b307bf8717945701b1b79d036af0a15"
                }
            ],
            "title": "ALSA: usb-audio: Prevent excessive number of frames",
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                "engine": "bippy-1.2.0"
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}