clk: visconti: Make sure clk_init_data is fully initialized
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90122
- 2026-10-03 Alias added: GHSA-chc4-v67r-8fwq
- 2026-10-13 Affected versions changed · Red Hat
- 2026-10-13 CVSS score added · Red Hat
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 6
- https://git.kernel.org/stable/c/0e97c22b286e1918c6f48bad7e77fb8240a24b4a
- https://git.kernel.org/stable/c/9f756f1965bad65e6066608f33c36988cd10302a
- https://git.kernel.org/stable/c/1cc0539e5b0906bace15d3fc7347b344a017cc02
- https://git.kernel.org/stable/c/8f7980033e9f7ecaaecd873a0b5bf6b6c87d7e5a
- https://git.kernel.org/stable/c/5ecfa72e74c6e2a765fa5bc1da574e5beae588f2
- https://git.kernel.org/stable/c/39c0e6c844a14945040cca4ccf6997792ab764c4
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Sources
- CVE-2026-90122 · CVE Program
- CVE-2026-90122 · NVD
- FIRST EPSS
- GHSA-chc4-v67r-8fwq · GitHub Advisory Database · CC BY 4.0
- CVE-2026-90122 · Red Hat security data · CC BY 4.0
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