In the Linux kernel, the following vulnerability has been resolved:
vsock: Update rx_bytes on read_skb()
Make sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt() calls are balanced (i.e. virtio_vsock_sock::rx_bytes doesn't lie) after vsock_transport::read_skb().
While here, also inform the peer that we've freed up space and it has more credit.
Failing to update rx_bytes after packet is dequeued leads to a warning on SOCK_STREAM recv():
[ 233.396654] rx_queue is empty, but rx_bytes is non-zero [ 233.396702] WARNING: CPU: 11 PID: 40601 at net/vmw_vsock/virtio_transport_common.c:589
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | Upgrade kernelNo solution existsUpgrade kernel-rt | May 15, 2025 | Nov 7, 2024 |
| Ubuntu | — | Upgrade linux-image-6.11.0-18-genericUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1026-oemUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-oem-24.04aUpgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1028-gcp-64kUpgrade linux-image-azureUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-realtimeUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-1010-gkeopUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-raspi-realtimeUpgrade linux-image-6.8.0-1026-nvidia-64kUpgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1027-azure-fdeUpgrade linux-image-awsUpgrade linux-image-oem-22.04dUpgrade linux-image-oracle-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-58-lowlatency-64kUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-aws-lts-24.04Upgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-gcpUpgrade linux-image-oem-24.04Upgrade linux-image-6.8.0-1023-gkeUpgrade linux-image-raspiUpgrade linux-image-6.11.0-1015-oemUpgrade linux-image-6.8.0-1024-ibmUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-kvmUpgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-6.8Upgrade linux-image-gkeUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-1026-nvidiaUpgrade linux-image-azure-nvidiaUpgrade linux-image-nvidiaUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1024-oracle-64kUpgrade linux-image-6.8.0-1028-gcpUpgrade linux-image-6.8.1-1020-realtimeUpgrade linux-image-6.8.0-1026-nvidia-lowlatencyUpgrade linux-image-6.8.0-1028-raspiUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1024-oracleUpgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-58-genericUpgrade linux-image-ibmUpgrade linux-image-gkeopUpgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-azure-lts-24.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.0-1027-awsUpgrade linux-image-6.8.0-1014-azure-nvidiaUpgrade linux-image-oem-22.04aUpgrade linux-image-genericUpgrade linux-image-6.8.0-58-generic-64kUpgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-oracleUpgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1026-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1027-azureUpgrade linux-image-oem-24.04bUpgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-virtualUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-generic-64kUpgrade linux-image-6.8.0-58-lowlatencyUpgrade linux-image-ibm-classicUpgrade linux-image-generic-lpaeUpgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-6.11.0-1009-azureUpgrade linux-image-6.8.0-2023-raspi-realtimeUpgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-6.11.0-1009-awsUpgrade linux-image-oem-22.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-nvidia-lowlatency | Feb 20, 2025 | Nov 7, 2024 |
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