In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
RDMA\/cxgb4: Fix dereg_skb leak and double free in write_tpt_entry()<\/p>\n
When the device is in the fatal error state, write_tpt_entry() returns -EIO
\nbefore handing the caller’s preallocated skb to the transmit path; its
\nallocation-failure returns do the same. c4iw_dereg_mr() ignores the error
\nand frees mhp, leaking mhp->dereg_skb. c4iw_get_dma_mr() instead frees the
\nskb a second time after dereg_mem() already consumed it, a double free.<\/p>\n
Make write_tpt_entry() the sole owner of a non-NULL skb, freeing it on
\nevery return preceding handoff to c4iw_ofld_send(): fatal error, tpt and
\nstag allocation failure. c4iw_ofld_send() consumes the skb on success and
\nerror alike, so drop the redundant kfree_skb() in c4iw_get_dma_mr() after
\ndereg_mem().<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
RDMA\/cxgb4: Fix dereg_skb leak and double free in write_tpt_entry()<\/p>\n
When the device is in the fatal error state, write_tpt_entry()<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25826","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25826","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=25826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25826"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}