Expired Pointer Dereference Affecting kernel-uki-virt package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CENTOS10-KERNELUKIVIRT-19241663
- published25 Aug 2026
- disclosed22 Aug 2026
Introduced: 22 Aug 2026
NewCVE-2026-74613 (opens in a new tab)How to fix?
There is no fixed version for Centos:10 kernel-uki-virt.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-uki-virt package and not the kernel-uki-virt package as distributed by Centos.
See How to fix? for Centos:10 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
vsock/virtio: avoid refilling the RX queue after teardown
Commit b917507e5ad9 ("vsock/virtio: stop workers during the .remove()") made the RX worker jump to its common exit when rx_run is clear. That exit still refills the RX queue when the buffer count is low, so work queued across virtio_vsock_vqs_del() can add buffers after the virtqueues have been deleted.
BUG: KASAN: slab-use-after-free in virtqueue_add_sgs Read of size 4 by task kworker/0:1 Workqueue: virtio_vsock virtio_transport_rx_work Call Trace: virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2796) virtio_vsock_rx_fill (net/vmw_vsock/virtio_transport.c:332) virtio_transport_rx_work (net/vmw_vsock/virtio_transport.c:701) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245) ... Freed by task 141: kfree (mm/slub.c:6566) vp_del_vq (drivers/virtio/virtio_pci_common.c:259) vp_del_vqs (drivers/virtio/virtio_pci_common.c:285) virtio_vsock_freeze (net/vmw_vsock/virtio_transport.c:912) virtio_device_freeze (drivers/virtio/virtio.c:658) virtio_pci_freeze (drivers/virtio/virtio_pci_common.c:601) pci_pm_freeze (drivers/pci/pci-driver.c:1098) device_suspend (drivers/base/power/main.c:1968) Kernel panic - not syncing: KASAN: panic_on_warn set ...
Jump to a no-refill exit when rx_run is clear, leaving the normal exit to replenish a running queue.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2521484
- https://access.redhat.com/security/cve/CVE-2026-74613
- https://git.kernel.org/stable/c/1aa21e7c8702a7c37cd7d3cace1a652cfa5e8171
- https://git.kernel.org/stable/c/38c7763fdc533edb34dc8f4489c260e8ba2ccae9
- https://git.kernel.org/stable/c/4d37e3525cc346a1421c1bdeaad5848e249fc60c
- https://git.kernel.org/stable/c/9d80a04129a6c27a690cb69de3fe3f50be5aa8b9
- https://git.kernel.org/stable/c/a309b74e3fc052352ab778500449cb9c3853c363
- https://git.kernel.org/stable/c/a31e0ad444698d8aa7534a0f89fda543730f97a5
- https://git.kernel.org/stable/c/a7658508f5fe8f1077a65e8cb9535d3426f37a2f
- https://git.kernel.org/stable/c/e82a5faea2e3886dfb2a65ce092a132e7e896915