CVE-2026-98001hwmon: (ltc4282) Make sure clk_init_data is fully initialized

Official description

In the Linux kernel, the following vulnerability has been resolved: hwmon: (ltc4282) 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. ltc428_clk_provider_setup() does not fill in any parent clocks, and assumes that init.num_parents 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 packages & fixed versions

Affected products (as reported)

References

• https://git.kernel.org/stable/c/c4a96da5a3f132d80aa971ddbeb86808539ba0e6
• https://git.kernel.org/stable/c/80b46a3d066d4e2c1dd4edb90d4aa3f22ca79f39
• https://git.kernel.org/stable/c/aa08ce1ffaf36c7bdd3edd0ad65f72413639bfad
• https://git.kernel.org/stable/c/e317326d1755ea054b98e7a4833b929157461c35