CVE-2026-72066
Published: August 18, 2026Last modified: August 18, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: cpu: hotplug: Bound hotplug states sysfs output states_show() adds CPU hotplug state names into a single sysfs buffer using sprintf(). With enough registered states, this can write past the end of the PAGE_SIZE buffer. Use sysfs_emit_at() so output is bounded.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.182-r0) |
| 25 LTS | linux-lts | Fixed (6.12.103-r0) | |
| Stream | linux-lts | Fixed (6.18.43-r0) |
References
- https://git.kernel.org/stable/c/2408be459c70ef4250da1a9e50f5478e6b250d61
- https://git.kernel.org/stable/c/27481cf4365a6ff5c9be3590143e7ed434000266
- https://git.kernel.org/stable/c/61a73a123ac7a7fbc57382531f8cb7092d569aba
- https://git.kernel.org/stable/c/631d53102da9f469c96b882b770336bec095b833
- https://git.kernel.org/stable/c/6cb15b81ff545840048fb0e1a6e827d560dbf367
- https://git.kernel.org/stable/c/86f436567f2516a0083b210bedc933544826a2c3
- https://git.kernel.org/stable/c/998f66e9ce320f3433f60b948e3698b744754a46
- https://git.kernel.org/stable/c/de4d3d8ae17dc8b4cf8c59436c4b7e2dc2491635