In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error<\/p>\n
qla_nvme_xmt_ls_rsp() obtains uctx, which was linked into
\nfcport->unsol_ctx_head by qla2xxx_process_purls_iocb() and is still linked
\nwhen the NVMe transport calls back to transmit the LS response. On the
\nerror (out:) path the function frees uctx with kfree() but never removes
\nit from the list. This leaves a freed node in fcport->unsol_ctx_head: the
\nnext list_add_tail() for that fcport writes through the freed node, and a
\nsubsequent list_del() can corrupt the list or panic.<\/p>\n
Unlink uctx with list_del() before kfree() on the error path, matching the
\nother free sites in qla_nvme_release_lsrsp_cmd_kref() and
\nqla2xxx_process_purls_pkt(). qla2x00_rel_sp() in the failure path only
\nreturns the SRB to its pool and does not invoke sp->put_fn, so the out:
\npath is the sole free and uctx is always still linked there.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error<\/p>\n
qla_nvme_xmt_ls_rsp() obtains uctx, which was linked into
\nf<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28960","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28960","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=28960"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28960"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28960"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}