{"id":"CVE-2024-44949","summary":"parisc: fix a possible DMA corruption","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nparisc: fix a possible DMA corruption\n\nARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be\npossible that two unrelated 16-byte allocations share a cache line. If\none of these allocations is written using DMA and the other is written\nusing cached write, the value that was written with DMA may be\ncorrupted.\n\nThis commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 -\nthat's the largest possible cache line size.\n\nAs different parisc microarchitectures have different cache line size, we\ndefine arch_slab_minalign(), cache_line_size() and\ndma_get_cache_alignment() so that the kernel may tune slab cache\nparameters dynamically, based on the detected cache line size.","modified":"2026-04-02T12:18:31.768424Z","published":"2024-09-04T18:35:49.788Z","related":["MGASA-2024-0309","MGASA-2024-0310"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/44xxx/CVE-2024-44949.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/00baca74fb5879e5f9034b6156671301f500f8ee"},{"type":"WEB","url":"https://git.kernel.org/stable/c/533de2f470baac40d3bf622fe631f15231a03c9f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/642a0b7453daff0295310774016fcb56d1f5bc7f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7ae04ba36b381bffe2471eff3a93edced843240f"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/44xxx/CVE-2024-44949.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-44949"},{"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":"a01fece2e4185ac173abd16d10304d73d47ebf00"},{"fixed":"00baca74fb5879e5f9034b6156671301f500f8ee"},{"fixed":"642a0b7453daff0295310774016fcb56d1f5bc7f"},{"fixed":"533de2f470baac40d3bf622fe631f15231a03c9f"},{"fixed":"7ae04ba36b381bffe2471eff3a93edced843240f"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-44949.json"}}],"schema_version":"1.7.5"}