CVE-2026-72066

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux98f8cdce1db580b99fce823a48eea2cb2bdb261e < 2408be459c70ef4250da1a9e50f5478e6b250d61affected
LinuxLinux98f8cdce1db580b99fce823a48eea2cb2bdb261e < de4d3d8ae17dc8b4cf8c59436c4b7e2dc2491635affected
LinuxLinux98f8cdce1db580b99fce823a48eea2cb2bdb261e < 998f66e9ce320f3433f60b948e3698b744754a46affected
LinuxLinux98f8cdce1db580b99fce823a48eea2cb2bdb261e < 61a73a123ac7a7fbc57382531f8cb7092d569abaaffected
LinuxLinux98f8cdce1db580b99fce823a48eea2cb2bdb261e < 6cb15b81ff545840048fb0e1a6e827d560dbf367affected
LinuxLinux98f8cdce1db580b99fce823a48eea2cb2bdb261e < 631d53102da9f469c96b882b770336bec095b833affected
LinuxLinux98f8cdce1db580b99fce823a48eea2cb2bdb261e < 86f436567f2516a0083b210bedc933544826a2c3affected
LinuxLinux4.6affected
LinuxLinux0 < 4.6unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References