{"id":"CVE-2025-22049","summary":"LoongArch: Increase ARCH_DMA_MINALIGN up to 16","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Increase ARCH_DMA_MINALIGN up to 16\n\nARCH_DMA_MINALIGN is 1 by default, but some LoongArch-specific devices\n(such as APBDMA) require 16 bytes alignment. When the data buffer length\nis too small, the hardware may make an error writing cacheline. Thus, it\nis dangerous to allocate a small memory buffer for DMA. It's always safe\nto define ARCH_DMA_MINALIGN as L1_CACHE_BYTES but unnecessary (kmalloc()\nneed small memory objects). Therefore, just increase it to 16.","modified":"2026-04-16T04:40:50.645465913Z","published":"2025-04-16T14:12:08.317Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/22xxx/CVE-2025-22049.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1d0def2d1658666ec1f32c9495df60e7411e3c82"},{"type":"WEB","url":"https://git.kernel.org/stable/c/279ec25c2df49fba1cd9488f2ddd045d9cb2112e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4103cfe9dcb88010ae4911d3ff417457d1b6a720"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8b82aea3666f8f2c78f86148d78aea99c46e0f82"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bfff341cac7c650e6ca8d10503725992f5564d0f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f39af67f03b564b763b06e44cb960c10a382d54a"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/22xxx/CVE-2025-22049.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-22049"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"fa96b57c149061f71a70bd6582d995f6424fbbf4"},{"fixed":"f39af67f03b564b763b06e44cb960c10a382d54a"},{"fixed":"279ec25c2df49fba1cd9488f2ddd045d9cb2112e"},{"fixed":"1d0def2d1658666ec1f32c9495df60e7411e3c82"},{"fixed":"bfff341cac7c650e6ca8d10503725992f5564d0f"},{"fixed":"8b82aea3666f8f2c78f86148d78aea99c46e0f82"},{"fixed":"4103cfe9dcb88010ae4911d3ff417457d1b6a720"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-22049.json"}}],"schema_version":"1.7.5"}