In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
arm64: hibernate: pass HVC_SET_VECTORS args to the resume hvc<\/p>\n
swsusp_arch_suspend_exit() reinstalls the restored kernel’s hyp stub
\nvectors with an hvc, but never passes the arguments. x0 is not set to
\nHVC_SET_VECTORS and x1 is not set to the vector address, so the stub
\ndispatch falls through and returns without writing vbar_el2. EL2 is
\nleft pointing at the trans_pgd copy of the vectors, a page that
\nswsusp_free() releases right after resume.<\/p>\n
Set the arguments up the same way __hyp_set_vectors() does.<\/p>\n
Without this fix, Vladimir was able to trigger a hang when resuming from
\nhibernation with CONFIG_PAGE_POISONING=y and page_poison=on.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
arm64: hibernate: pass HVC_SET_VECTORS args to the resume hvc<\/p>\n
swsusp_arch_suspend_exit() reinstalls the restored kernel’s hyp stub<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-33318","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/33318","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=33318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=33318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=33318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}