In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
fuse: fix race between interrupt and resend<\/p>\n
After commit f8fce75fedf7 (“fuse: clear intr_entry in fuse_resend and
\nfuse_remove_pending_req”) the WARN_ON(!list_empty(&req->intr_entry)) in
\nfuse_request_free() still triggers due to the following race:<\/p>\n
In request_wait_answer()
\n if (test_bit(FR_SENT, &req->flags)) -> returns true<\/p>\n
In fuse_chan_resend()
\n clear_bit(FR_SENT, &req->flags)<\/p>\n
In request_wait_answer()
\n queue_interrupt(req)<\/p>\n
Fix by:<\/p>\n
– move clearing FR_SENT inside fpq->lock<\/p>\n
– move setting FR_PENDING inside fiq->lock<\/p>\n
– recheck FR_SENT after acquiring fiq->lock in fuse_dev_queue_interrupt()<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
fuse: fix race between interrupt and resend<\/p>\n
After commit f8fce75fedf7 (“fuse: clear intr_entry in fuse_resend and
\nfuse_remove_pend<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17364","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17364","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=17364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}