CVE-2026-93249

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxcef9991e04aed3305c61c392e880f6e01a0c2ea4 < bfce0f324efaa605e606cbb3f0bdb8fe5c910c11affected
LinuxLinuxcef9991e04aed3305c61c392e880f6e01a0c2ea4 < 5969a3df8361a0e20379a308c2313d3e263123deaffected
LinuxLinuxcef9991e04aed3305c61c392e880f6e01a0c2ea4 < b2702908ee23ef31bfcf241a2e07ace0eb76bd71affected
LinuxLinux6.17affected
LinuxLinux0 < 6.17unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References