{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-38662", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.031Z", "datePublished": "2025-08-22T16:02:55.078Z", "dateUpdated": "2026-08-05T12:03:49.326Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:03:49.326Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: mediatek: mt8365-dai-i2s: pass correct size to mt8365_dai_set_priv\n\nGiven mt8365_dai_set_priv allocate priv_size space to copy priv_data which\nmeans we should pass mt8365_i2s_priv[i] or \"struct mtk_afe_i2s_priv\"\ninstead of afe_priv which has the size of \"struct mt8365_afe_private\".\n\nOtherwise the KASAN complains about.\n\n[ 59.389765] BUG: KASAN: global-out-of-bounds in mt8365_dai_set_priv+0xc8/0x168 [snd_soc_mt8365_pcm]\n...\n[ 59.394789] Call trace:\n[ 59.395167] dump_backtrace+0xa0/0x128\n[ 59.395733] show_stack+0x20/0x38\n[ 59.396238] dump_stack_lvl+0xe8/0x148\n[ 59.396806] print_report+0x37c/0x5e0\n[ 59.397358] kasan_report+0xac/0xf8\n[ 59.397885] kasan_check_range+0xe8/0x190\n[ 59.398485] asan_memcpy+0x3c/0x98\n[ 59.399022] mt8365_dai_set_priv+0xc8/0x168 [snd_soc_mt8365_pcm]\n[ 59.399928] mt8365_dai_i2s_register+0x1e8/0x2b0 [snd_soc_mt8365_pcm]\n[ 59.400893] mt8365_afe_pcm_dev_probe+0x4d0/0xdf0 [snd_soc_mt8365_pcm]\n[ 59.401873] platform_probe+0xcc/0x228\n[ 59.402442] really_probe+0x340/0x9e8\n[ 59.402992] driver_probe_device+0x16c/0x3f8\n[ 59.403638] driver_probe_device+0x64/0x1d8\n[ 59.404256] driver_attach+0x1dc/0x4c8\n[ 59.404840] bus_for_each_dev+0x100/0x190\n[ 59.405442] driver_attach+0x44/0x68\n[ 59.405980] bus_add_driver+0x23c/0x500\n[ 59.406550] driver_register+0xf8/0x3d0\n[ 59.407122] platform_driver_register+0x68/0x98\n[ 59.407810] mt8365_afe_pcm_driver_init+0x2c/0xff8 [snd_soc_mt8365_pcm]" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The faulty memcpy is only reachable from the mt8365 AFE platform driver's probe path (`mt8365_afe_pcm_dev_probe` → `mt8365_dai_i2s_register`), which runs on the local system at boot or module load. There is no network, packet, or remote-peer input anywhere on the path.\nAC:L - The wrong length is a fixed compile-time constant, so the ~950-byte out-of-bounds read happens deterministically on every probe of the driver, with no race, timing window, or memory-layout condition involved.\nPR:L - The code path is exercised without any attacker action during normal device bring-up, so an unprivileged local user is exposed to it; deliberately re-triggering a probe (module load or sysfs bind/unbind) would in fact require more privilege, not less.\nUI:N - No victim action is needed — the defect triggers automatically when the audio driver probes at boot.\nS:U - The out-of-bounds read and its consequences are entirely within the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The memcpy reads roughly 900+ bytes of adjacent kernel/module memory past the end of a 136-byte const global and copies it into a live driver allocation, which is far beyond a strictly bounded few-byte over-read and constitutes disclosure of kernel memory contents into an attacker-relevant kernel object (also dumped verbatim in the KASAN report).\nI:N - The destination buffer is allocated with the same oversized length, so the copy stays in bounds on the write side; no kernel memory is corrupted and no attacker-controlled data is written anywhere.\nA:H - Reading ~1 KB past the end of the module's `.rodata` object can run off the end of the module mapping and oops during probe, and on KASAN-enabled kernels the resulting BUG report panics the machine under `panic_on_warn`, taking the device down at boot." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "sound/soc/mediatek/mt8365/mt8365-dai-i2s.c" ], "versions": [ { "version": "402bbb13a195caa83b3279ebecdabfb11ddee084", "lessThan": "1dc0ed16cfbc3c28a07a89904071cfa802fdcee1", "status": "affected", "versionType": "git" }, { "version": "402bbb13a195caa83b3279ebecdabfb11ddee084", "lessThan": "6e621dd99c57db916842865debaa65f20bbd6d8e", "status": "affected", "versionType": "git" }, { "version": "402bbb13a195caa83b3279ebecdabfb11ddee084", "lessThan": "6bea85979d05470e6416a2bb504a9bcd9178304c", "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/mt8365/mt8365-dai-i2s.c" ], "versions": [ { "version": "6.12", "status": "affected" }, { "version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.41", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.15.9", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.16", "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": "6.12", "versionEndExcluding": "6.12.41" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.15.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/1dc0ed16cfbc3c28a07a89904071cfa802fdcee1" }, { "url": "https://git.kernel.org/stable/c/6e621dd99c57db916842865debaa65f20bbd6d8e" }, { "url": "https://git.kernel.org/stable/c/6bea85979d05470e6416a2bb504a9bcd9178304c" } ], "title": "ASoC: mediatek: mt8365-dai-i2s: pass correct size to mt8365_dai_set_priv", "x_generator": { "engine": "bippy-1.2.0" } } } }