In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
vfio\/qat: fix f_pos race in qat_vf_resume_write()<\/p>\n
qat_vf_resume_write() checks filp->f_pos before taking migf->lock, but
\ncopies into the migration-state buffer after taking the lock and
\nre-reading the shared file position.<\/p>\n
Two concurrent writers could therefore pass the bounds check with the
\nold offset, then have the second writer copy after the first advanced
\nf_pos, writing past the end of the migration-state buffer.<\/p>\n
Take migf->lock before doing the boundary checks.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
vfio\/qat: fix f_pos race in qat_vf_resume_write()<\/p>\n
qat_vf_resume_write() checks filp->f_pos before taking migf->lock, but
\ncopies in<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7248","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7248","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=7248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}