In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
net\/liquidio: drop cached VF pci_dev LUT<\/p>\n
The PF SR-IOV enable path caches VF pci_dev pointers in
\ndpiring_to_vfpcidev_lut[] by iterating with pci_get_device(). Those
\nentries do not own a reference, because the iterator drops the previous
\ndevice reference on each step. The cached pointer is then dereferenced
\nlater when handling OCTEON_VF_FLR_REQUEST.<\/p>\n
Replace the cached VF mapping with runtime lookup on the mailbox DPI
\nring: derive the VF index from q_no, resolve the VF via exported PCI
\nIOV helpers, validate it with the PF pointer and VF ID, then issue
\npcie_flr() and drop the reference with pci_dev_put(). Remove the
\nunused VF lookup table initialization and cleanup.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
net\/liquidio: drop cached VF pci_dev LUT<\/p>\n
The PF SR-IOV enable path caches VF pci_dev pointers in
\ndpiring_to_vfpcidev_lut[] by iter<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-6955","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/6955","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=6955"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6955"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}