CVE-2026-99259
soc/tegra: pmc: Fix uninitialised clock rate
What happened?
In the Linux kernel, the following vulnerability has been resolved:
soc/tegra: pmc: Fix uninitialised clock rate
For legacy 32-bit Tegra devices, the warning in the tegra_pmc_enter_suspend_mode() function is being triggered because the early_pmc->rate variable is never configured and hence, always 0. This issue started occurring after updating the PMC driver to create the PMC context dynamically which causes the 'rate' to be set in the new dynamic context, but missed updating the rate in the early PMC context.
Fix this by initialising the early_pmc->rate variable for 32-bit Tegra devices when the rate for the PMC context is initialised.
[treding@nvidia.com: move assignment to existing #ifdef block]
Affected software and versions
| Software | Version information | Fixed version |
|---|---|---|
| LinuxLinux | affected: 4d61f03426892b14d498e160be245edcb9dd8359 to < 43bc7d5707bbbf75e56db849b987193d6e866ec6; affected: 4d61f03426892b14d498e160be245edcb9dd8359 to < c5c95dbdc9011a56359df4dc00be829bbcc0b036 | See vendor advisory |
| LinuxLinux | affected: 7.2; unaffected: 0 to < 7.2; unaffected: 7.2.13 to ≤ 7.2.*; unaffected: 7.3 to ≤ * | See vendor advisory |
Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.
Is it being exploited?
This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.
How to respond
- Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
- Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
- Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.