{"id":"CVE-2026-72301","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get\n\nIn sof_ipc3_bytes_put(), the size used for the memcpy is derived from\nthe old data->size already in the …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get\n\nIn sof_ipc3_bytes_put(), the size used for the memcpy is derived from\nthe old data->size already in the …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 8","enterprise_linux 9"],"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:17:20.357","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72301","references":[{"url":"https://git.kernel.org/stable/c/0c4fbdaca225b97122b61b68c5353caa33a253c3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0dce240145f47545d2e4b18c6d58033b83e1fd0e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1f97760417b5faa60e9642fd0ed61eb17d0b1b39","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8bd715a9d882fe1993bb2aec5eff89fffa946592","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/92f90917413bdd6078fefff6f6c83a07bf870b04","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ed4f758f34be4c32e02933ac4fa044589d9c1c16","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72301.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-72301"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2516471"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72301"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72301"},{"url":"https://lore.kernel.org/linux-cve-announce/2026081502-CVE-2026-72301-c96e@gregkh/T"}],"tags":["nvd","csaf","vex","red-hat","cve.org"],"epss":0.00169,"epssPercentile":0.06192,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:46:11.606714Z"},"scores":{"nvd":7.8,"vendor":7,"cna":7.8},"ingestedAt":"2026-10-16T19:46:24.410Z","slug":"CVE-2026-72301","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get\n\nIn sof_ipc3_bytes_put(), the size used for the memcpy is derived from\nthe old data->size already in the buffer, not the incoming new data's\nsize field. If the new data has a different size, the copy length is\nwrong: it may truncate valid data or copy stale bytes.\n\nSimilarly, sof_ipc3_bytes_get() checks data->size against max_size\nwithout accounting for the sizeof(struct sof_ipc_ctrl_data) offset\nof the flex array within the allocation.\n\nFix bytes_put to validate and use the incoming data's sof_abi_hdr.size\nfrom ucontrol before copying. Fix bytes_get to subtract sizeof(*cdata)\nfrom the bounds check to match the actual available space.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72301.json)","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":230285,"id":"CVE-2026-72301","ts":1793130914867,"field":"cvss","old":"7","new":"7.8"},{"seq":224881,"id":"CVE-2026-72301","ts":1792411698064,"field":"cvss","old":"7.8","new":"7"}]}