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CVE-2026-93092

firmware: arm_scmi: Unregister device notifier before IDR teardown

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.6.157, 6.12.110, 6.18.52, 7.2.6
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Unregister device notifier before IDR teardown The requested-devices notifier looks up protocol fwnodes from the active_protocols IDR. During remove, unregister the notifier before releasing and destroying active_protocols so no notifier callback can race with the IDR teardown. Keep the bus notifier registered until after the protocol state is torn down, matching the existing remove ordering for SCMI bus users.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 53b8c25df7082edd78a3fc63e359abee0f28fa70 · fixed in 70a26b37389846f1f29a09f7983aa3f45feff529; From 53b8c25df7082edd78a3fc63e359abee0f28fa70 · fixed in 492fb49eac24beecd6d3c5e4744a513e626f8dcf; From 53b8c25df7082edd78a3fc63e359abee0f28fa70 · fixed in f5e528f631425416f9b39e9d8b385c9f1ceb40d6; From 53b8c25df7082edd78a3fc63e359abee0f28fa70 · fixed in 74fcaa0a3f7ad3edfde2e8c6cb8ae457a00e0b7a; From 53b8c25df7082edd78a3fc63e359abee0f28fa70 · fixed in 66a0bbf30cc14140fe13f63cd594a7c1ee352b75

  • Linux Linux

    6.3

  • KernelLinux

    From 6.3.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.52; From 6.19.0 · fixed in 7.2.6

References 5

git.kernel.org