In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
perf: Fix race between perf_event_exit_task() and perf_pending_task()<\/p>\n
A race condition exists between perf_event_exit_task() and
\nperf_pending_task() during begin_new_exec().<\/p>\n
During begin_new_exec(), perf_event_exit_task() may be called, and the
\nPF_EXITING flag is not set on task. So perf_sigtrap() continues to execute
\nand triggers WARN_ON_ONCE(event->ctx->task != current).<\/p>\n
Since both task exit and exec paths can call perf_event_exit_task() which
\nsets ctx->task to TASK_TOMBSTONE, fix this by explicitly checking if
\nevent->ctx->task equals TASK_TOMBSTONE and dropping the redundant
\nPF_EXITING check.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
perf: Fix race between perf_event_exit_task() and perf_pending_task()<\/p>\n
A race condition exists between perf_event_exit_task() and
\np<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-41262","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/41262","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=41262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=41262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=41262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}