In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
nvme-fc: Do not cancel requests in io target before it is initialized<\/p>\n
A new nvme-fc controller in CONNECTING state sees admin request timeout
\nschedules ctrl->ioerr_work to abort inflight requests. This ends up
\ncalling __nvme_fc_abort_outstanding_ios() which aborts requests in both
\nadmin and io tagsets. In case fc_ctrl->tag_set was not initialized we
\nsee the warning below. This is because ctrl.queue_count is initialized
\nearly in nvme_fc_alloc_ctrl().<\/p>\n
nvme nvme0: NVME-FC{0}: starting error recovery Connectivity Loss
\nINFO: trying to register non-static key.
\nThe code is fine but needs lockdep annotation, or maybe
\nlpfc 0000:ab:00.0: queue 0 connect admin queue failed (-6).
\nyou didn’t initialize this object before use?
\nturning off the locking correctness validator.
\nWorkqueue: nvme-reset-wq nvme_fc_ctrl_ioerr_work [nvme_fc]
\nCall Trace:<\/p>\n
dump_stack_lvl+0x57\/0x80
\n register_lock_class+0x567\/0x580
\n __lock_acquire+0x330\/0xb90
\n lock_acquire.part.0+0xad\/0x210
\n blk_mq_tagset_busy_iter+0xf9\/0xc00
\n __nvme_fc_abort_outstanding_ios+0x23f\/0x320 [nvme_fc]
\n nvme_fc_ctrl_ioerr_work+0x172\/0x210 [nvme_fc]
\n process_one_work+0x82c\/0x1450
\n worker_thread+0x5ee\/0xfd0
\n kthread+0x3a0\/0x750
\n ret_from_fork+0x439\/0x670
\n ret_from_fork_asm+0x1a\/0x30<\/p>\n
Update the check in __nvme_fc_abort_outstanding_ios() confirm that io
\ntagset was created before iterating over busy requests. Also make sure
\nto cancel ctrl->ioerr_work before removing io tagset.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
nvme-fc: Do not cancel requests in io target before it is initialized<\/p>\n
A new nvme-fc controller in CONNECTING state sees admin requ<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28656","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28656","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=28656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}