CVE-2022-49687: virtio_net: fix xdp_rxq_info bug after suspend/resume

Published Feb 26, 2025
·
Updated

In the Linux kernel, the following vulnerability has been resolved:

virtionet: fix xdprxqinfo bug after suspend/resume

The following sequence currently causes a driver bug warning when using virtionet:

# ip link set eth0 up # echo mem > /sys/power/state (or e.g. # rtcwake -s 10 -m mem) <resume> # ip link set eth0 down

Missing register, driver bug WARNING: CPU: 0 PID: 375 at net/core/xdp.c:138 xdprxqinfounreg+0x58/0x60 Call trace: xdprxqinfounreg+0x58/0x60 virtnetclose+0x58/0xac devclosemany+0xac/0x140 devchangeflags+0xd8/0x210 devchangeflags+0x24/0x64 dosetlink+0x230/0xdd0 ...

This happens because virtnetfreeze() frees the receivequeue completely (including struct xdprxqinfo) but does not call xdprxqinfounreg(). Similarly, virtnetrestore() sets up the receivequeue again but does not call xdprxqinforeg().

Actually, parts of virtnetfreezedown() and virtnetrestoreup() are almost identical to virtnetclose() and virtnetopen(): only the calls to xdprxqinfo(un)reg() are missing. This means that we can fix this easily and avoid such problems in the future by just calling virtnetclose()/open() from the freeze/restore handlers.

Aside from adding the missing xdprxqinfo calls the only difference is that the refill work is only cancelled if netifrunning(). However, this should not make any functional difference since the refill work should only be active if the network interface is actually up.

Affected Software

148 affected componentsFixes available
Linux Foundation Linux Kernel
ubuntu/linux-azure*
ubuntu/linux-azure*
ubuntu/linux-hwe-edge*
ubuntu/linux-aws-5.4<5.4.0-1085.92~18.04.1
5.4.0-1085.92~18.04.1
ubuntu/linux-azure-5.4<5.4.0-1091.96~18.04.1
5.4.0-1091.96~18.04.1
ubuntu/linux-gcp-5.4<5.4.0-1089.97~18.04.1
5.4.0-1089.97~18.04.1
ubuntu/linux-hwe-5.4<5.4.0-126.142~18.04.1
5.4.0-126.142~18.04.1
ubuntu/linux-ibm-5.4<5.4.0-1033.37~18.04.1
5.4.0-1033.37~18.04.1
ubuntu/linux-oracle-5.4<5.4.0-1083.91~18.04.1
5.4.0-1083.91~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1070.80~18.04.1
5.4.0-1070.80~18.04.1
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-azure*
ubuntu/linux-azure-4.15*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-edge*
ubuntu/linux-oem*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-azure-fips*
ubuntu/linux<5.4.0-126.142
5.4.0-126.142
ubuntu/linux-aws<5.4.0-1085.92
5.4.0-1085.92
ubuntu/linux-aws-5.15<5.15.0-1020.24~20.04.1
5.15.0-1020.24~20.04.1
ubuntu/linux-azure<5.4.0-1091.96
5.4.0-1091.96
ubuntu/linux-azure-5.15<5.15.0-1020.25~20.04.1
5.15.0-1020.25~20.04.1
ubuntu/linux-bluefield<5.4.0-1046.51
5.4.0-1046.51
ubuntu/linux-gcp<5.4.0-1089.97
5.4.0-1089.97
ubuntu/linux-gcp-5.15<5.15.0-1018.24~20.04.1
5.15.0-1018.24~20.04.1
ubuntu/linux-hwe-5.15<5.15.0-48.54~20.04.1
5.15.0-48.54~20.04.1
ubuntu/linux-ibm<5.4.0-1033.37
5.4.0-1033.37
ubuntu/linux-intel-iotg-5.15<5.15.0-1016.21~20.04.1
5.15.0-1016.21~20.04.1
ubuntu/linux-iot<5.4.0-1004.6
5.4.0-1004.6
ubuntu/linux-kvm<5.4.0-1075.80
5.4.0-1075.80
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-48.54~20.04.1
5.15.0-48.54~20.04.1
ubuntu/linux-oracle<5.4.0-1083.91
5.4.0-1083.91
ubuntu/linux-oracle-5.15<5.15.0-1018.23~20.04.1
5.15.0-1018.23~20.04.1
ubuntu/linux-raspi<5.4.0-1070.80
5.4.0-1070.80
ubuntu/linux-riscv-5.15<5.15.0-1019.22~20.04.1
5.15.0-1019.22~20.04.1
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.8*
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.8*
ubuntu/linux-azure-fde*
ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
ubuntu/linux-gcp-5.8*
ubuntu/linux-gke*
ubuntu/linux-gke-5.15*
ubuntu/linux-gkeop*
ubuntu/linux-gkeop-5.15*
ubuntu/linux-hwe-5.11*
ubuntu/linux-hwe-5.13*
ubuntu/linux-hwe-5.8*
ubuntu/linux-intel-5.13*
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.8*
ubuntu/linux-aws-fips<5.4.0-1085.92+fips1
5.4.0-1085.92+fips1
ubuntu/linux-azure-fips<5.4.0-1091.96+fips1
5.4.0-1091.96+fips1
ubuntu/linux-fips<5.4.0-1061.69
5.4.0-1061.69
ubuntu/linux-gcp-fips<5.4.0-1089.97+fips1
5.4.0-1089.97+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-48.54
5.15.0-48.54
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1020.24
5.15.0-1020.24
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-azure<5.15.0-1020.25
5.15.0-1020.25
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-6.5*
ubuntu/linux-azure-fde<5.15.0-1024.30.1
5.15.0-1024.30.1
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp<5.15.0-1018.24
5.15.0-1018.24
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gcp-6.5*
ubuntu/linux-gke<5.15.0-1016.19
5.15.0-1016.19
ubuntu/linux-gkeop<5.15.0-1003.5
5.15.0-1003.5
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-ibm<5.15.0-1015.17
5.15.0-1015.17
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1016.21
5.15.0-1016.21
ubuntu/linux-kvm<5.15.0-1018.22
5.15.0-1018.22
ubuntu/linux-lowlatency<5.15.0-48.54
5.15.0-48.54
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-lowlatency-hwe-6.5*
ubuntu/linux-nvidia<5.15.0-1007.7
5.15.0-1007.7
ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-6.5*
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oem-6.5*
ubuntu/linux-oracle<5.15.0-1018.23
5.15.0-1018.23
ubuntu/linux-oracle-6.5*
ubuntu/linux-raspi<5.15.0-1015.17
5.15.0-1015.17
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-riscv-6.5*
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-starfive-6.5*
ubuntu/linux-realtime<5.15.0-1021.21
5.15.0-1021.21
ubuntu/linux-raspi-realtime*
Linux Linux kernel>=4.16<4.19.250
Linux Linux kernel>=4.20<5.4.202
Linux Linux kernel>=5.5<5.10.127
Linux Linux kernel>=5.11<5.15.51
Linux Linux kernel>=5.16<5.18.8
Linux Linux kernel=5.19-rc1
Linux Linux kernel=5.19-rc2
Linux Linux kernel=5.19-rc3
debian/linux<5.18.14-1
5.18.14-1
debian/linux<5.18.14-1
5.18.14-1
debian/linux<5.18.14-1
5.18.14-1
linux/kernel>=4.16.0<4.19.250
4.19.250
linux/kernel>=4.20.0<5.4.202
5.4.202
linux/kernel>=5.5.0<5.10.127
5.10.127
linux/kernel>=5.11.0<5.15.51
5.15.51
linux/kernel>=5.16.0<5.18.8
5.18.8
debian/linux
6.1.176-16.1.190-16.12.107-16.12.115-27.2.15-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 5.18.14-1
  2. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 4.19.250
  3. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 5.4.202
  4. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 5.10.127
  5. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 5.15.51
  6. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 5.18.8
  7. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.115-2Fixed in 7.2.15-1
  8. Upgrade

    Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1085.92~18.04.1
  9. Upgrade

    Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1091.96~18.04.1
  10. Upgrade

    Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1089.97~18.04.1
  11. Upgrade

    Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-126.142~18.04.1
  12. Upgrade

    Upgrade ubuntu/linux-ibm-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1033.37~18.04.1
  13. Upgrade

    Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1083.91~18.04.1
  14. Upgrade

    Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1070.80~18.04.1
  15. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.4.0-126.142
  16. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.4.0-1085.92
  17. Upgrade

    Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1020.24~20.04.1
  18. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.4.0-1091.96
  19. Upgrade

    Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1020.25~20.04.1
  20. Upgrade

    Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.

    Fixed in 5.4.0-1046.51
  21. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1089.97
  22. Upgrade

    Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1018.24~20.04.1
  23. Upgrade

    Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-48.54~20.04.1
  24. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1033.37
  25. Upgrade

    Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1016.21~20.04.1
  26. Upgrade

    Upgrade ubuntu/linux-iot to a version that resolves this vulnerability.

    Fixed in 5.4.0-1004.6
  27. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1075.80
  28. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-48.54~20.04.1
  29. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.4.0-1083.91
  30. Upgrade

    Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1018.23~20.04.1
  31. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.4.0-1070.80
  32. Upgrade

    Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1019.22~20.04.1
  33. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1085.92+fips1
  34. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1091.96+fips1
  35. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1061.69
  36. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1089.97+fips1
  37. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.15.0-48.54
  38. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.15.0-1020.24
  39. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.15.0-1020.25
  40. Upgrade

    Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.

    Fixed in 5.15.0-1024.30.1
  41. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.15.0-1018.24
  42. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 5.15.0-1016.19
  43. Upgrade

    Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.

    Fixed in 5.15.0-1003.5
  44. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1015.17
  45. Upgrade

    Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.

    Fixed in 5.15.0-1016.21
  46. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1018.22
  47. Upgrade

    Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.15.0-48.54
  48. Upgrade

    Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.

    Fixed in 5.15.0-1007.7
  49. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.15.0-1018.23
  50. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.15.0-1015.17
  51. Upgrade

    Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.

    Fixed in 5.15.0-1021.21
  52. Compensating control

    Modify the virtio_net suspend/resume freeze and restore handlers to call virtnet_close() and virtnet_open(), ensuring xdp_rxq_info_unreg() and xdp_rxq_info_reg() are called when the receive queue is freed and recreated.

Event History

Feb 26, 2025
CVE Published
via MITRE·02:24 AM
Data Sourced
via MITRE·02:24 AM
Description
Data Sourced
via OSV·02:24 AM
DescriptionAffected Software
Data Sourced
via NVD·07:01 AM
RemedyDescriptionSeverityAffected Software
Nov 10, 2026
Data Sourced
via OSV·02:49 AM
Severity

Frequently Asked Questions

1

What is the severity of CVE-2022-49687?

CVE-2022-49687 is classified as a moderate severity vulnerability in the Linux kernel.

2

How do I fix CVE-2022-49687?

To fix CVE-2022-49687, upgrade to the latest version of the Linux kernel that includes the patch addressing this vulnerability.

3

What systems are affected by CVE-2022-49687?

CVE-2022-49687 affects Linux kernel versions that utilize the virtio_net driver.

4

What type of vulnerability is CVE-2022-49687?

CVE-2022-49687 is related to driver bugs in the virtio_net functionality, specifically after suspend and resume events.

5

Is CVE-2022-49687 being actively exploited?

As of now, there are no known active exploits for CVE-2022-49687 reported in the wild.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203