{"id":11219,"date":"2026-09-04T18:51:45","date_gmt":"2026-09-04T10:51:45","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74613"},"modified":"2026-09-04T18:51:45","modified_gmt":"2026-09-04T10:51:45","slug":"cve-2026-74613","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74613","title":{"rendered":"CVE-2026-74613 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nvsock\/virtio: avoid r"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>vsock\/virtio: avoid refilling the RX queue after teardown<\/p>\n<p>Commit b917507e5ad9 (&#8220;vsock\/virtio: stop workers during the .remove()&#8221;)<br \/>\nmade the RX worker jump to its common exit when rx_run is clear.  That<br \/>\nexit still refills the RX queue when the buffer count is low, so work<br \/>\nqueued across virtio_vsock_vqs_del() can add buffers after the virtqueues<br \/>\nhave been deleted.<\/p>\n<p>BUG: KASAN: slab-use-after-free in virtqueue_add_sgs<br \/>\nRead of size 4 by task kworker\/0:1<br \/>\nWorkqueue: virtio_vsock virtio_transport_rx_work<br \/>\nCall Trace:<br \/>\n virtqueue_add_sgs (drivers\/virtio\/virtio_ring.c:2796)<br \/>\n virtio_vsock_rx_fill (net\/vmw_vsock\/virtio_transport.c:332)<br \/>\n virtio_transport_rx_work (net\/vmw_vsock\/virtio_transport.c:701)<br \/>\n process_one_work (kernel\/workqueue.c:3314)<br \/>\n worker_thread (kernel\/workqueue.c:3478)<br \/>\n kthread (kernel\/kthread.c:436)<br \/>\n ret_from_fork (arch\/x86\/kernel\/process.c:158)<br \/>\n ret_from_fork_asm (arch\/x86\/entry\/entry_64.S:245)<br \/>\n&#8230;<br \/>\nFreed by task 141:<br \/>\n kfree (mm\/slub.c:6566)<br \/>\n vp_del_vq (drivers\/virtio\/virtio_pci_common.c:259)<br \/>\n vp_del_vqs (drivers\/virtio\/virtio_pci_common.c:285)<br \/>\n virtio_vsock_freeze (net\/vmw_vsock\/virtio_transport.c:912)<br \/>\n virtio_device_freeze (drivers\/virtio\/virtio.c:658)<br \/>\n virtio_pci_freeze (drivers\/virtio\/virtio_pci_common.c:601)<br \/>\n pci_pm_freeze (drivers\/pci\/pci-driver.c:1098)<br \/>\n device_suspend (drivers\/base\/power\/main.c:1968)<br \/>\nKernel panic &#8211; not syncing: KASAN: panic_on_warn set &#8230;<\/p>\n<p>Jump to a no-refill exit when rx_run is clear, leaving the normal exit<br \/>\nto replenish a running queue.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>vsock\/virtio: avoid refilling the RX queue after teardown<\/p>\n<p>Commit b917507e5ad9 (&#8220;vsock\/virtio: stop workers during the .remove()&#8221;)<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-11219","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/11219","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=11219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}