What’s Vulnerable › Vulnerabilities

CVE-2026-98264: ALSA: virtio: reset device before deleting virtqueues

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-06 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: virtio: reset device before deleting virtqueues virtsnd_remove() and virtsnd_freeze() delete the virtqueues before resetting the device. del_vqs() frees the vring backing, but does not provide a generic device quiesce operation. In particular, modern virtio-pci keeps enabled queues active until the device is reset. Reset the device before deleting the virtqueues so it can no longer access the vring memory when that memory is released. This also covers probe failures after DRIVER_OK, which unwind through virtsnd_remove().

Affected products

• Linux: 5.13 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3e24b4a6acfd3bedb2200334595facd767c9a897
• https://git.kernel.org/stable/c/500a8401415ab085555785c3c339747e378abd36
• https://git.kernel.org/stable/c/6c05d00af307560e6a9f1631d6270d3df5aa2272
• https://git.kernel.org/stable/c/830012feadc228a938514a6487862dcf56af7e66
• https://git.kernel.org/stable/c/8edc3669e3e22f0123a1114c3a03df9abc4cd465
• https://git.kernel.org/stable/c/c0156a60adfb351b15ff25fbd76a0c639e96246c
• https://git.kernel.org/stable/c/f070cce7cb361d5389b18f3ff6bd3d25a7596369

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