CVE-2026-93249spi: amlogic-spisg: Make sure clk_init_data is fully initialized

Official description

In the Linux kernel, the following vulnerability has been resolved: spi: amlogic-spisg: 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. aml_spisg_clk_init() 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 packages & fixed versions

Affected products (as reported)

References

• https://git.kernel.org/stable/c/bfce0f324efaa605e606cbb3f0bdb8fe5c910c11
• https://git.kernel.org/stable/c/5969a3df8361a0e20379a308c2313d3e263123de
• https://git.kernel.org/stable/c/b2702908ee23ef31bfcf241a2e07ace0eb76bd71