CVE-2026-98001

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxcbc29538dbf7d7400f1ffc5dd5713e6a551463a0 < c4a96da5a3f132d80aa971ddbeb86808539ba0e6affected
LinuxLinuxcbc29538dbf7d7400f1ffc5dd5713e6a551463a0 < 80b46a3d066d4e2c1dd4edb90d4aa3f22ca79f39affected
LinuxLinuxcbc29538dbf7d7400f1ffc5dd5713e6a551463a0 < aa08ce1ffaf36c7bdd3edd0ad65f72413639bfadaffected
LinuxLinuxcbc29538dbf7d7400f1ffc5dd5713e6a551463a0 < e317326d1755ea054b98e7a4833b929157461c35affected
LinuxLinux6.9affected
LinuxLinux0 < 6.9unaffected
LinuxLinux6.12.111 <= 6.12.*unaffected
LinuxLinux6.18.53 <= 6.18.*unaffected
LinuxLinux7.2.7 <= 7.2.*unaffected
LinuxLinux7.3-rc3 <= *unaffected

Weaknesses

References