In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
s390\/vfio_ccw: Free all memory if cp_init() fails<\/p>\n
The routine cp_free() is called to unpin\/free any memory once an I\/O
\nis completed successfully, or if cp_prefetch() fails. But if cp_init()
\nfails, and cp->initialized is not enabled, the same routine cannot be
\nused to free all the memory.<\/p>\n
An attempt to address this exists in ccwchain_handle_ccw(), where a
\nsingle call to ccwchain_free() is made for the currently-processed
\nCCW segment. But this will leak other segments (created as a result
\nof a Transfer in Channel) that had been allocated as part of the same
\nchannel program.<\/p>\n
Address this by performing the cleanup outside of the recursive
\nccwchain_handle_ccw()\/ccwchain_loop_tic() logic.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
s390\/vfio_ccw: Free all memory if cp_init() fails<\/p>\n
The routine cp_free() is called to unpin\/free any memory once an I\/O
\nis complete<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-11960","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/11960","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=11960"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11960"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11960"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}