Answer in brief
CVE-2026-72262 records a High severity (CVSS 7.8) vulnerability in ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <1adde1941bba7b0d7104b86ed819d48d81cb0ad9 || >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <eaa67e139c9217099e2a7b717aeeb46c65de3494 || >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <121577383b5cf221e86581e0f2bcca4c66f17469 || >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <f4933e1d11b97b6a0951648b7c3e53850e1b33a9 || >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <fd46668d538993218eea19c6925c868ac0f2630c | 1adde1941bba7b0d7104b86ed819d48d81cb0ad9, eaa67e139c9217099e2a7b717aeeb46c65de3494, 121577383b5cf221e86581e0f2bcca4c66f17469, f4933e1d11b97b6a0951648b7c3e53850e1b33a9, fd46668d538993218eea19c6925c868ac0f2630c |
| Linux/Linuxgeneric | 5.18 | Not reported |
| Linux/Linuxgeneric | >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <af4b437a463ac0482ba705434a44da06783778e6 || >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <1adde1941bba7b0d7104b86ed819d48d81cb0ad9 || >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <eaa67e139c9217099e2a7b717aeeb46c65de3494 || >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <121577383b5cf221e86581e0f2bcca4c66f17469 || >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <f4933e1d11b97b6a0951648b7c3e53850e1b33a9 || >=67ec2a091630c28ea8d05db2bd7178a05b04b7e6 <fd46668d538993218eea19c6925c868ac0f2630c | af4b437a463ac0482ba705434a44da06783778e6, 1adde1941bba7b0d7104b86ed819d48d81cb0ad9, eaa67e139c9217099e2a7b717aeeb46c65de3494, 121577383b5cf221e86581e0f2bcca4c66f17469, f4933e1d11b97b6a0951648b7c3e53850e1b33a9, fd46668d538993218eea19c6925c868ac0f2630c |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.