{"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"}}}}