Issued at: 2026-11-05
Updated at: 2026-11-05
Advisory content derived from Red Hat RHBA-2026:43594, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important:virtio-win bug fix and enhancement update
Description
The virtio-win package provides paravirtualized network drivers for most Microsoft Windows operating systems. Paravirtualized drivers are virtualization-aware drivers used by fully virtualized guests running on Rocky Linux. Fully virtualized guests using the paravirtualized drivers gain significantly better I/O performance than fully virtualized guests running without the drivers.
Bug Fix(es) and Enhancement(s):
* [virtio-win][viogpu] Reject resolutions exceeding framebuffer segment capacity [rhel-10.2.z] (JIRA:Rocky Linux-192315)
* Someone driver works with debug level >= 6 (debug message flood) [rhel-10.2.z] (JIRA:Rocky Linux-192589)
* Virtio-win may not configure guest cache mode when using virtio-blk [rhel-10.2.z] (JIRA:Rocky Linux-192590)
* [virtio-win] NetKVM (virtio-win 0.1.285) does not transmit USO packets correctly [rhel-10.2.z] (JIRA:Rocky Linux-192591)
* viosock: Validate fd_count in VIOSockSelect against overflow and empt? [rhel-10.2.z] (JIRA:Rocky Linux-192592)
* [Windows]Can not connect to VM via vsock after migration [rhel-10.2.z] (JIRA:Rocky Linux-192594)
* [virtio-win][viogpu] Provide a way to set a custom screen resolution [rhel-10.2.z] (JIRA:Rocky Linux-192595)
* [viogpudo] VM crashes with BSOD/black screen when setting invalid resolution values [rhel-10.2.z] (JIRA:Rocky Linux-192596)
* netkvm: treat temporary TX queue full as retry, not drop [rhel-10.2.z] (JIRA:Rocky Linux-192610)
* viosock: Fix spec compliance issues in WSP library and socket driver [rhel-10.2.z] (JIRA:Rocky Linux-192611)