In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
staging: nvec: fix use-after-free in nvec_rx_completed()<\/p>\n
In nvec_rx_completed(), when an incomplete RX transfer is detected,
\nnvec_msg_free() is called to return the message back to the pool by
\nclearing its ‘used’ atomic flag. Immediately after this, the code
\naccesses nvec->rx->data[0] to check the message type.<\/p>\n
Since nvec_msg_free() marks the pool slot as available via atomic_set(),
\nany concurrent or subsequent call to nvec_msg_alloc() could claim that
\nsame slot and overwrite its data[] array. Reading nvec->rx->data[0] after
\nfreeing the message is therefore a use-after-free.<\/p>\n
Fix this by saving the message type byte before calling nvec_msg_free(),
\nthen using the saved value for the battery quirk check.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
staging: nvec: fix use-after-free in nvec_rx_completed()<\/p>\n
In nvec_rx_completed(), when an incomplete RX transfer is detected,
\nnvec_<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-8442","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/8442","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=8442"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8442"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}