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CVE-2026-72066

cpu: hotplug: Bound hotplug states sysfs output

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.265, 5.15.212, 6.1.178, 6.6.145, 6.12.97, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 98f8cdce1db580b99fce823a48eea2cb2bdb261e · fixed in 27481cf4365a6ff5c9be3590143e7ed434000266; From 98f8cdce1db580b99fce823a48eea2cb2bdb261e · fixed in 2408be459c70ef4250da1a9e50f5478e6b250d61; From 98f8cdce1db580b99fce823a48eea2cb2bdb261e · fixed in de4d3d8ae17dc8b4cf8c59436c4b7e2dc2491635; From 98f8cdce1db580b99fce823a48eea2cb2bdb261e · fixed in 998f66e9ce320f3433f60b948e3698b744754a46; From 98f8cdce1db580b99fce823a48eea2cb2bdb261e · fixed in 61a73a123ac7a7fbc57382531f8cb7092d569aba; From 98f8cdce1db580b99fce823a48eea2cb2bdb261e · fixed in 6cb15b81ff545840048fb0e1a6e827d560dbf367; From 98f8cdce1db580b99fce823a48eea2cb2bdb261e · fixed in 631d53102da9f469c96b882b770336bec095b833; From 98f8cdce1db580b99fce823a48eea2cb2bdb261e · fixed in 86f436567f2516a0083b210bedc933544826a2c3

  • Linux Linux

    4.6

  • KernelLinux

    From 4.6.0 · fixed in 5.10.265; From 5.11.0 · fixed in 5.15.212; From 5.16.0 · fixed in 6.1.178; From 6.2.0 · fixed in 6.6.145; From 6.7.0 · fixed in 6.12.97; From 6.13.0 · fixed in 6.18.40; From 6.19.0 · fixed in 7.1.5

References 8

git.kernel.org