{"apiVersion":"1.0","identifier":"CVE-2026-72262","description":"In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get The ipc_control_data buffer is allocated as kzalloc(max_size), where max_size covers the entire struct sof_ipc_ctrl_data including its flexible array payload. However, the bounds checks in bytes_ext_put and _bytes_ext_get compared user data lengths against max_size directly, ignoring that cdata->data sits at an offset of sizeof(struct sof_ipc_ctrl_data) bytes into the allocation. This allowed writing up to sizeof(struct sof_ipc_ctrl_data) bytes past the end of the heap buffer from unprivileged userspace via the ALSA TLV kcontrol interface, and similarly allowed over-reading adjacent heap data on the get path. Fix all bounds checks to subtract sizeof(*cdata) from max_size so they reflect the actual space available at the cdata->data offset. Also fix the error-path restore in bytes_ext_put which wrote to cdata->data instead of cdata, causing the same overflow.","publishedAt":"2026-08-15T06:21:54","lastModifiedAt":"2026-08-23T13:16:42","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72262","cvssScore":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00177,"riskScore":0.79,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-72262","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-72262","en":"https://www.redsauce.net/en/cves/CVE-2026-72262","fr":"https://www.redsauce.net/fr/cves/CVE-2026-72262","pt":"https://www.redsauce.net/pt/cves/CVE-2026-72262","de":"https://www.redsauce.net/de/cves/CVE-2026-72262","sk":"https://www.redsauce.net/sk/cves/CVE-2026-72262","el":"https://www.redsauce.net/el/cves/CVE-2026-72262"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-72262"}}