In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
nvmet: fix NULL pointer dereference in nvmet_execute_identify_ns_zns()<\/p>\n
When a host issues an Identify command with CNS 05h (I\/O Command Set
\nspecific Identify Namespace) and CSI 02h (ZNS) targeting a file-backed
\nnamespace, nvmet_execute_identify_ns_zns() calls bdev_is_zoned() on
\nreq->ns->bdev. A file-backed namespace has no block device, so
\nreq->ns->bdev is NULL and bdev_is_zoned() dereferences it, oopsing.<\/p>\n
The I\/O command set is selected by the host-supplied CSI field and the
\ncommand is routed here whenever CONFIG_BLK_DEV_ZONED is enabled,
\nindependent of the namespace backing type, so any file-backed namespace
\nis exposed.<\/p>\n
Reject the command with Invalid Field when the namespace is not backed
\nby a block device.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
nvmet: fix NULL pointer dereference in nvmet_execute_identify_ns_zns()<\/p>\n
When a host issues an Identify command with CNS 05h (I\/O Co<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25637","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25637","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=25637"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25637"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}