CVE-2026-93263

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> clk: eswin: Zero-initialize stack-allocated clk_init_data<br /> <br /> eswin_clk_register_pll() and eswin_register_clkdiv() declare a struct<br /> clk_init_data on the stack and only initialize some of its fields<br /> (parent_data respectively parent_hws). clk_core_populate_parent_map()<br /> checks parent_names first and parent_data second before falling back<br /> to parent_hws, so leftover stack garbage in the uninitialized fields<br /> hijacks parent resolution and the clk core dereferences a bogus<br /> pointer:<br /> <br /> Unable to handle kernel NULL pointer dereference at virtual address 000000000000000c<br /> Oops [#1]<br /> epc : __clk_register+0x31a/0x7f0<br /> [] __clk_register+0x31a/0x7f0<br /> [] devm_clk_hw_register+0x2a/0x94<br /> [] eswin_register_clkdiv+0x80/0xd0<br /> [] eswin_clk_register_clks+0x162/0x1a0<br /> [] eic7700_clk_probe+0x146/0x180<br /> [] platform_probe+0x3c/0x7a<br /> <br /> Observed on EIC7700 hardware (with the driver backported to a 6.17<br /> tree); whether the bug triggers depends entirely on what the stack<br /> happens to contain when the registration helpers run.<br /> <br /> Zero-initialize both structures.