RHBA-2026:97715 - Bug Fix Advisory

Topic

An update for virtio-win is now available for Red Hat Enterprise Linux 9.

Description

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 9 x86_64

Fixes

• RHEL-239540 - viosock: Validate fd_count in VIOSockSelect against overflow and empt? [rhel-9.9]
• RHEL-239542 - Virtio-win may not configure guest cache mode when using virtio-blk [rhel-9.9]
• RHEL-239543 - [virtio-win] NetKVM (virtio-win 0.1.285) does not transmit USO packets correctly [rhel-9.9]
• RHEL-239544 - Someone driver works with debug level >= 6 (debug message flood) [rhel-9.9]
• RHEL-239545 - [viogpudo] VM crashes with BSOD/black screen when setting invalid resolution values [rhel-9.9]
• RHEL-239546 - netkvm: treat temporary TX queue full as retry, not drop [rhel-9.9]
• RHEL-239547 - [virtio-win][viogpu] Provide a way to set a custom screen resolution [rhel-9.9]
• RHEL-239548 - viosock: Fix spec compliance issues in WSP library and socket driver [rhel-9.9]
• RHEL-239549 - [Windows]Can not connect to VM via vsock after migration [rhel-9.9]
• RHEL-239584 - [virtio-win] Tool to get the information about the installed driver versions, MSI version, QEMU-GA version, and if reboot in the system is needed
• RHEL-239586 - Windows 2025 and virtio-win 1.9.57 guest iSCSI connections drops, TCP issues
• RHEL-239587 - [virtio-win][viostor] Properly setting SRB transfer length
• RHEL-246826 - [virtio-win] Installer: fix heap corruption crashes in MSI custom actions
• RHEL-246827 - [virtio-win] Installer: add retry logic for NIC config restore after driver update
• RHEL-246828 - [virtio-win] Installer Loss of IP address (several NICs)
• RHEL-248624 - [virtio-win][downstream->upstream] Fix copyright of all drivers
• RHEL-248625 - [virtio-win][installer] Static ip couldn?t be rollback when updating the installer from an older one

CVEs

(none)

References

• https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.9_release_notes/index