{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-42088", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-29T15:50:41.171Z", "datePublished": "2024-07-29T16:26:28.523Z", "dateUpdated": "2026-08-05T11:35:33.587Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:35:33.587Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: mediatek: mt8195: Add platform entry for ETDM1_OUT_BE dai link\n\nCommit e70b8dd26711 (\"ASoC: mediatek: mt8195: Remove afe-dai component\nand rework codec link\") removed the codec entry for the ETDM1_OUT_BE\ndai link entirely instead of replacing it with COMP_EMPTY(). This worked\nby accident as the remaining COMP_EMPTY() platform entry became the codec\nentry, and the platform entry became completely empty, effectively the\nsame as COMP_DUMMY() since snd_soc_fill_dummy_dai() doesn't do anything\nfor platform entries.\n\nThis causes a KASAN out-of-bounds warning in mtk_soundcard_common_probe()\nin sound/soc/mediatek/common/mtk-soundcard-driver.c:\n\n\tfor_each_card_prelinks(card, i, dai_link) {\n\t\tif (adsp_node && !strncmp(dai_link->name, \"AFE_SOF\", strlen(\"AFE_SOF\")))\n\t\t\tdai_link->platforms->of_node = adsp_node;\n\t\telse if (!dai_link->platforms->name && !dai_link->platforms->of_node)\n\t\t\tdai_link->platforms->of_node = platform_node;\n\t}\n\nwhere the code expects the platforms array to have space for at least one entry.\n\nAdd an COMP_EMPTY() entry so that dai_link->platforms has space." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "baseScore": 7.3, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The flaw is in the MT8195 machine sound-card driver and is reached only through platform device probe driven by local device-tree/driver-binding, with no remote or adjacent-network input path. Re-triggering requires local module load or sysfs bind, so the vector is Local.\nAC:L - On any affected MT8195 board with CONFIG_SND_SOC_MT8195_MT6359 (present in arm64 defconfig), the zero-length platforms array is dereferenced deterministically on every probe with no race, timing, or memory-layout precondition. Success is 100% reliable.\nPR:L - The out-of-bounds access occurs during normal driver probe without requiring any elevated capability, consistent with the repo's treatment of ASoC probe-time flaws (e.g. CVE-2024-56685, CVE-2024-57880) as PR:L. A local unprivileged presence on the system is the baseline attacker model.\nUI:N - No victim action is needed; the corruption happens automatically during driver probe at boot or module load. Nothing must be opened, mounted, or clicked.\nS:U - Both the flawed code and the corrupted memory are kernel globals within the same security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:L - The loop reads `platforms->name` and `platforms->of_node` past the end of a zero-sized global array, disclosing adjacent kernel .bss/.data contents into the KASAN report, and kernel addresses/contents are exposed via the resulting splat. The read is bounded to a single 16-byte struct at a fixed offset rather than an arbitrary-length read.\nI:H - `dai_link->platforms->of_node = platform_node` performs an out-of-bounds write of an 8-byte kernel pointer into adjacent global kernel data, silently corrupting neighboring `snd_soc_dai_link_component` state on non-KASAN builds. Out-of-bounds writes into kernel memory represent a total integrity loss within the kernel's scope.\nA:H - The condition produces a KASAN global-out-of-bounds BUG report (a panic under panic_on_warn), and on non-instrumented kernels corrupts adjacent global component descriptors used for DAI/component matching, destabilizing the audio subsystem during probe. This matches the A:H assigned across comparable ASoC probe-time defects in this tree." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "sound/soc/mediatek/mt8195/mt8195-mt6359.c" ], "versions": [ { "version": "81051a495a9a23c0339d2ae1aa6e4477ed7268c8", "lessThan": "62f61129621ce7e05a6d24584660f79bf081b483", "status": "affected", "versionType": "git" }, { "version": "e70b8dd26711704b1ff1f1b4eb3d048ba69e29da", "lessThan": "42b9ab7a4d7e6c5efd71847541e4fcc213585aad", "status": "affected", "versionType": "git" }, { "version": "e70b8dd26711704b1ff1f1b4eb3d048ba69e29da", "lessThan": "282a4482e198e03781c152c88aac8aa382ef9a55", "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/mediatek/mt8195/mt8195-mt6359.c" ], "versions": [ { "version": "6.8", "status": "affected" }, { "version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.8", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "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": "6.8", "versionEndExcluding": "6.9.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/62f61129621ce7e05a6d24584660f79bf081b483" }, { "url": "https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad" }, { "url": "https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55" } ], "title": "ASoC: mediatek: mt8195: Add platform entry for ETDM1_OUT_BE dai link", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:54:32.140Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-42088", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:18:47.495476Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:56.751Z" } } ] } }