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CVE-2026-90122

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Last modified

CVE-2026-90122 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: clk: visconti: Make sure clk_init_data is fully initialized The clk_init_data structure contains several mutually-exclusive members for different methods to specify the possible parents of a clock, prompting drivers to initialize only the members they need. However, not initializing all members may cause subtle issues, which are only exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is enabled. visconti_clk_register_gate() fills in init.parent_data, and assumes that init.parent_names is NULL.

Description

In the Linux kernel, the following vulnerability has been resolved: clk: visconti: Make sure clk_init_data is fully initialized The clk_init_data structure contains several mutually-exclusive members for different methods to specify the possible parents of a clock, prompting drivers to initialize only the members they need. However, not initializing all members may cause subtle issues, which are only exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is enabled. visconti_clk_register_gate() fills in init.parent_data, and assumes that init.parent_names is NULL. However, the latter in uninitialized, and thus may cause a crash. Make sure all members are fully initialized, to fix such bugs, and to avoid future breakage when converting drivers to a different method for specifying the parents.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa, < 0e97c22b286e1918c6f48bad7e77fb8240a24b4a; >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa, < 9f756f1965bad65e6066608f33c36988cd10302a; >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa, < 1cc0539e5b0906bace15d3fc7347b344a017cc02; >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa, < 8f7980033e9f7ecaaecd873a0b5bf6b6c87d7e5a; >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa, < 5ecfa72e74c6e2a765fa5bc1da574e5beae588f2; >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa, < 39c0e6c844a14945040cca4ccf6997792ab764c4
LinuxLinux5.17

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90122?
In the Linux kernel, the following vulnerability has been resolved: clk: visconti: Make sure clk_init_data is fully initialized The clk_init_data structure contains several mutually-exclusive members for different methods to specify the possible parents of a clock, prompting drivers to initialize only the members they need. However, not initializing all members may cause subtle issues, which are only exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is enabled. visconti_clk_register_gate() fills in init.parent_data, and assumes that init.parent_names is NULL. However, the latter in uninitialized, and thus may cause a crash. Make sure all members are fully initialized, to fix such bugs, and to avoid future breakage when converting drivers to a different method for specifying the parents.
How severe is CVE-2026-90122?
Severity scoring for CVE-2026-90122 is pending analysis.
How do I fix CVE-2026-90122?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST