CVEvulnerability
CVE-2026-90122
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
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.
References
- https://git.kernel.org/stable/c/0e97c22b286e1918c6f48bad7e77fb8240a24b4a git.kernel.org
- https://git.kernel.org/stable/c/1cc0539e5b0906bace15d3fc7347b344a017cc02 git.kernel.org
- https://git.kernel.org/stable/c/39c0e6c844a14945040cca4ccf6997792ab764c4 git.kernel.org
- https://git.kernel.org/stable/c/5ecfa72e74c6e2a765fa5bc1da574e5beae588f2 git.kernel.org
- https://git.kernel.org/stable/c/8f7980033e9f7ecaaecd873a0b5bf6b6c87d7e5a git.kernel.org
- https://git.kernel.org/stable/c/9f756f1965bad65e6066608f33c36988cd10302a git.kernel.org