{"id":"CVE-2026-72304","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-72304","summary":"ASoC: SOF: ipc4-control: Fix TOCTOU in sof_ipc4_bytes_put","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: ipc4-control: Fix TOCTOU in sof_ipc4_bytes_put\n\nIn sof_ipc4_bytes_put(), the copy size is derived from the old\ndata->size in the buffer rather than the incoming new data's size\nfield from ucontrol. If the new data has a different size, the copy\nuses the wrong length: it may truncate valid data or copy stale bytes.\n\nFix by validating and using the incoming data's sof_abi_hdr.size from\nucontrol before copying.","published":"2026-08-15T05:55:22.290Z","modified":"2026-08-18T03:56:40.847380216Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.6.145"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/038406abde0d0883419ec89425ea941ec8bbef95"},{"type":"WEB","url":"https://git.kernel.org/stable/c/266f936db83aee6ca6473bbb06259bda52bf4fc3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3ad673e7139cf214afd24321a829aad6575f4163"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4cf6a7ebbf8787393b158b2cc341723e5bebc4a8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fb4293173db2d474d8fbc0e5ecf4943e6df2b40e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72304.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72304"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T03:56:40.847380216Z"}}