In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
rtc: pcf8563: fix clock provider leak on unbind<\/p>\n
pcf8563_clkout_register_clk() registers the CLKOUT clock provider with
\nof_clk_add_provider(), but nothing ever unwinds it: there is no
\nof_clk_del_provider() call and the driver has no remove callback. Each
\nof_clk_add_provider() allocates a struct of_clk_provider, takes a
\nreference on the OF node and adds an entry to the global of_clk_providers
\nlist, none of which is released when the device is unbound. Every
\nbind\/unbind (or module reload) therefore leaks a provider structure and
\nan of_node reference.<\/p>\n
The clock itself is already device-managed (devm_clk_register()); only
\nthe provider registration was not. Use devm_of_clk_add_hw_provider() so
\nthe provider is removed automatically on unbind. Tie it to the parent
\ni2c device, whose OF node carries the #clock-cells and clock-output-names
\nproperties (the RTC class device has no OF node of its own).<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
rtc: pcf8563: fix clock provider leak on unbind<\/p>\n
pcf8563_clkout_register_clk() registers the CLKOUT clock provider with
\nof_clk_add_<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25535","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25535","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=25535"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25535"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}