In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
usbip: vhci_hcd: fix NULL deref in status_show_vhci<\/p>\n
platform_get_drvdata() can return NULL if a VHCI host controller’s
\nprobe failed (e.g. due to USB bus number exhaustion). status_show_vhci()
\nchecked for a NULL pdev but not for a NULL hcd returned by
\nplatform_get_drvdata(). Passing NULL to hcd_to_vhci_hcd() does not
\nreturn NULL – it returns a pointer offset of 0x260, causing a NULL
\npointer dereference when that value is subsequently dereferenced.<\/p>\n
Add a NULL check on hcd before calling hcd_to_vhci_hcd(). Move
\nstatus_show_not_ready() above status_show_vhci() to make it callable
\nfrom the new error path without a forward declaration.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
usbip: vhci_hcd: fix NULL deref in status_show_vhci<\/p>\n
platform_get_drvdata() can return NULL if a VHCI host controller’s
\nprobe faile<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28716","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28716","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=28716"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28716"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28716"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}