{"id":28527,"date":"2026-09-25T00:31:36","date_gmt":"2026-09-24T16:31:36","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93263"},"modified":"2026-09-25T00:31:36","modified_gmt":"2026-09-24T16:31:36","slug":"cve-2026-93263","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93263","title":{"rendered":"CVE-2026-93263 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nclk: eswin: Zero-init"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>clk: eswin: Zero-initialize stack-allocated clk_init_data<\/p>\n<p>eswin_clk_register_pll() and eswin_register_clkdiv() declare a struct<br \/>\nclk_init_data on the stack and only initialize some of its fields<br \/>\n(parent_data respectively parent_hws). clk_core_populate_parent_map()<br \/>\nchecks parent_names first and parent_data second before falling back<br \/>\nto parent_hws, so leftover stack garbage in the uninitialized fields<br \/>\nhijacks parent resolution and the clk core dereferences a bogus<br \/>\npointer:<\/p>\n<p>  Unable to handle kernel NULL pointer dereference at virtual address 000000000000000c<br \/>\n  Oops [#1]<br \/>\n  epc : __clk_register+0x31a\/0x7f0<br \/>\n  [] __clk_register+0x31a\/0x7f0<br \/>\n  [] devm_clk_hw_register+0x2a\/0x94<br \/>\n  [] eswin_register_clkdiv+0x80\/0xd0<br \/>\n  [] eswin_clk_register_clks+0x162\/0x1a0<br \/>\n  [] eic7700_clk_probe+0x146\/0x180<br \/>\n  [] platform_probe+0x3c\/0x7a<\/p>\n<p>Observed on EIC7700 hardware (with the driver backported to a 6.17<br \/>\ntree); whether the bug triggers depends entirely on what the stack<br \/>\nhappens to contain when the registration helpers run.<\/p>\n<p>Zero-initialize both structures.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>clk: eswin: Zero-initialize stack-allocated clk_init_data<\/p>\n<p>eswin_clk_register_pll() and eswin_register_clkdiv() declare a struct<br \/>\ncl<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28527","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}