CVE-2022-49084: qede: confirm skb is allocated before using

Published Feb 26, 2025
·
Updated

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

qede: confirm skb is allocated before using

qedebuildskb() assumes buildskb() always works and goes straight to skbreserve(). However, buildskb() can fail under memory pressure. This results in a kernel panic because the skb to reserve is NULL.

Add a check in case buildskb() failed to allocate and return NULL.

The NULL return is handled correctly in callers to qedebuildskb().

Affected Software

132 affected componentsFixes available
Linux Kernel
Linux Linux kernel>=4.18<4.19.238
Linux Linux kernel>=4.20<5.4.189
Linux Linux kernel>=5.5<5.10.111
Linux Linux kernel>=5.11<5.15.34
Linux Linux kernel>=5.16<5.16.20
Linux Linux kernel>=5.17<5.17.3
Linux Linux kernel=5.18-rc1
debian/linux<5.17.3-1
5.17.3-1
debian/linux<5.17.3-1
5.17.3-1
debian/linux<5.17.3-1
5.17.3-1
debian/linux
6.1.176-16.1.190-16.12.107-16.12.115-27.2.12-17.2.15-1
ubuntu/linux-hwe-edge*
ubuntu/linux-aws-5.4<5.4.0-1078.84~18.04.1
5.4.0-1078.84~18.04.1
ubuntu/linux-azure-5.4<5.4.0-1083.87~18.04.1
5.4.0-1083.87~18.04.1
ubuntu/linux-gcp-5.4<5.4.0-1078.84~18.04.1
5.4.0-1078.84~18.04.1
ubuntu/linux-hwe-5.4<5.4.0-117.132~18.04.1
5.4.0-117.132~18.04.1
ubuntu/linux-ibm-5.4<5.4.0-1028.32~18.04.1
5.4.0-1028.32~18.04.1
ubuntu/linux-oracle-5.4<5.4.0-1076.83~18.04.1
5.4.0-1076.83~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1065.75~18.04.1
5.4.0-1065.75~18.04.1
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-azure*
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<5.4.0-117.132
5.4.0-117.132
ubuntu/linux-aws<5.4.0-1078.84
5.4.0-1078.84
ubuntu/linux-azure<5.4.0-1083.87
5.4.0-1083.87
ubuntu/linux-azure-5.15<5.15.0-1008.9~20.04.1
5.15.0-1008.9~20.04.1
ubuntu/linux-bluefield<5.4.0-1040.44
5.4.0-1040.44
ubuntu/linux-gcp<5.4.0-1078.84
5.4.0-1078.84
ubuntu/linux-hwe-5.15<5.15.0-41.44~20.04.1
5.15.0-41.44~20.04.1
ubuntu/linux-ibm<5.4.0-1026.29
5.4.0-1026.29
ubuntu/linux-intel-iotg-5.15<5.15.0-1008.11~20.04.1
5.15.0-1008.11~20.04.1
ubuntu/linux-iot<5.4.0-1004.6
5.4.0-1004.6
ubuntu/linux-kvm<5.4.0-1068.72
5.4.0-1068.72
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-42.45~20.04.1
5.15.0-42.45~20.04.1
ubuntu/linux-oracle<5.4.0-1076.83
5.4.0-1076.83
ubuntu/linux-raspi<5.4.0-1065.75
5.4.0-1065.75
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<5.4.0-1078.84+fips1
5.4.0-1078.84+fips1
ubuntu/linux-azure-fips<5.4.0-1083.87+fips1
5.4.0-1083.87+fips1
ubuntu/linux-fips<5.4.0-1054.61
5.4.0-1054.61
ubuntu/linux-gcp-fips<5.4.0-1078.84+fips1
5.4.0-1078.84+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-37.39
5.15.0-37.39
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1011.14
5.15.0-1011.14
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-azure<5.15.0-1010.12
5.15.0-1010.12
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-6.5*
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp<5.15.0-1008.12
5.15.0-1008.12
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gcp-6.5*
ubuntu/linux-gke<5.15.0-1008.10
5.15.0-1008.10
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-ibm<5.15.0-1007.8
5.15.0-1007.8
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1008.11
5.15.0-1008.11
ubuntu/linux-kvm<5.15.0-1010.11
5.15.0-1010.11
ubuntu/linux-lowlatency<5.15.0-37.39
5.15.0-37.39
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-lowlatency-hwe-6.5*
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<5.15.0-1009.12
5.15.0-1009.12
ubuntu/linux-oracle-6.5*
ubuntu/linux-raspi<5.15.0-1011.13
5.15.0-1011.13
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<5.15.0-1014.14
5.15.0-1014.14
ubuntu/linux-raspi-realtime*
ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 5.17.3-1
  2. 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 7.2.12-1Fixed in 7.2.15-1
  3. Upgrade

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

    Fixed in 5.4.0-1078.84~18.04.1
  4. Upgrade

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

    Fixed in 5.4.0-1083.87~18.04.1
  5. Upgrade

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

    Fixed in 5.4.0-1078.84~18.04.1
  6. Upgrade

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

    Fixed in 5.4.0-117.132~18.04.1
  7. Upgrade

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

    Fixed in 5.4.0-1028.32~18.04.1
  8. Upgrade

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

    Fixed in 5.4.0-1076.83~18.04.1
  9. Upgrade

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

    Fixed in 5.4.0-1065.75~18.04.1
  10. Upgrade

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

    Fixed in 5.4.0-117.132
  11. Upgrade

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

    Fixed in 5.4.0-1078.84
  12. Upgrade

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

    Fixed in 5.4.0-1083.87
  13. Upgrade

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

    Fixed in 5.15.0-1008.9~20.04.1
  14. Upgrade

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

    Fixed in 5.4.0-1040.44
  15. Upgrade

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

    Fixed in 5.4.0-1078.84
  16. Upgrade

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

    Fixed in 5.15.0-41.44~20.04.1
  17. Upgrade

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

    Fixed in 5.4.0-1026.29
  18. Upgrade

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

    Fixed in 5.15.0-1008.11~20.04.1
  19. Upgrade

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

    Fixed in 5.4.0-1004.6
  20. Upgrade

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

    Fixed in 5.4.0-1068.72
  21. Upgrade

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

    Fixed in 5.15.0-42.45~20.04.1
  22. Upgrade

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

    Fixed in 5.4.0-1076.83
  23. Upgrade

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

    Fixed in 5.4.0-1065.75
  24. Upgrade

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

    Fixed in 5.4.0-1078.84+fips1
  25. Upgrade

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

    Fixed in 5.4.0-1083.87+fips1
  26. Upgrade

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

    Fixed in 5.4.0-1054.61
  27. Upgrade

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

    Fixed in 5.4.0-1078.84+fips1
  28. Upgrade

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

    Fixed in 5.15.0-37.39
  29. Upgrade

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

    Fixed in 5.15.0-1011.14
  30. Upgrade

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

    Fixed in 5.15.0-1010.12
  31. Upgrade

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

    Fixed in 5.15.0-1008.12
  32. Upgrade

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

    Fixed in 5.15.0-1008.10
  33. Upgrade

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

    Fixed in 5.15.0-1007.8
  34. Upgrade

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

    Fixed in 5.15.0-1008.11
  35. Upgrade

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

    Fixed in 5.15.0-1010.11
  36. Upgrade

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

    Fixed in 5.15.0-37.39
  37. Upgrade

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

    Fixed in 5.15.0-1009.12
  38. Upgrade

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

    Fixed in 5.15.0-1011.13
  39. Upgrade

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

    Fixed in 5.15.0-1014.14
  40. Compensating control

    Update qede_build_skb() to check whether build_skb() returned NULL before calling skb_reserve(), and handle the NULL result by returning NULL to its callers.

Event History

Feb 26, 2025
CVE Published
via MITRE·01:54 AM
Data Sourced
via MITRE·01:54 AM
DescriptionSeverity
Data Sourced
via OSV·07:00 AM
DescriptionSeverityAffected Software
Data Sourced
via NVD·07:00 AM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2022-49084?

CVE-2022-49084 has been categorized as a medium severity vulnerability in the Linux kernel.

2

How do I fix CVE-2022-49084?

To fix CVE-2022-49084, you should upgrade to a patched version of the Linux kernel that resolves this vulnerability.

3

What systems are affected by CVE-2022-49084?

CVE-2022-49084 affects multiple versions of the Linux kernel, specifically those between 4.18 and 5.18-rc1.

4

What type of vulnerability is CVE-2022-49084?

CVE-2022-49084 is a memory allocation issue that can lead to a kernel panic in the Linux kernel.

5

Can CVE-2022-49084 be exploited remotely?

CVE-2022-49084 does not indicate a remote exploitation vector, but it can lead to a denial of service if triggered.

Company

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