CVE-2026-98904: Linux Kernel IMX mailbox devm_pm_runtime misuse
CVE-2026-98904 Published on October 23, 2026
mailbox: imx: Use devm_pm_runtime_enable()
In the Linux kernel, the following vulnerability has been resolved:
mailbox: imx: Use devm_pm_runtime_enable()
sashiko complained about early usage of the device while probe isn't
completed. This can be mitigated by delaying the pm_runtime_enable()
into the removal path instead doing it early. This ensures that in an
error case the device is removed (and imx_mu_shutdown()) before
pm_runtime_disable() so we don't have to do this manually.
For the order to work, lets move devm_mbox_controller_register() until
after the pm-runtime part. So the reverse order will be mbox-controller
removal followed by disabling pm runtime.
Use devm_pm_runtime_enable(), remove manual pm_runtime_disable()
invocations and move the pm_runtime handling in probe before
devm_mbox_controller_register().
Products Associated with CVE-2026-98904
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Affected Versions
Linux:- Version 676f23eab75adbf72c029bdfb7b5a7b2f1129177 and below b30a047744ea4344bb6f854b0a052cf276349128 is affected.
- Version 676f23eab75adbf72c029bdfb7b5a7b2f1129177 and below adcaa21d50c3a4c884f4d0b7a95fa3bd7a07cf84 is affected.
- Version 676f23eab75adbf72c029bdfb7b5a7b2f1129177 and below 1f602619e408b6e9655ee76656a2a5ab6e89c5e4 is affected.
- Version 5.8 is affected.
- Before 5.8 is unaffected.
- Version 6.12.111, <= 6.12.* is unaffected.
- Version 6.18.53, <= 6.18.* is unaffected.
- Version 7.2, <= * is unaffected.