CVE-2024-0639: Kernel: potential deadlock on &net->sctp.addr_wq_lock leading to dos

Published Jan 17, 2024
·
Updated

A deadlock flaw was found in the Linux kernel’s SCTP subsystem. Guests could trigger deadlock and potentially crash the system.

Reference Link: https://github.com/torvalds/linux/commit/6feb37b3b06e9049e20dcf7e23998f92c9c5be9a

Other sources

A denial of service vulnerability due to a deadlock was found in sctpautoasconfinit in net/sctp/socket.c in the Linux kernel’s SCTP subsystem. This flaw allows guests with local user privileges to trigger a deadlock and potentially crash the system.

— Launchpad

Kernel: potential deadlock on &net->sctp.addrwqlock leading to dos

— Microsoft

Affected Software

147 affected componentsFixes available
Microsoft cbl2 kernel 5.15.180.1-1
Microsoft cbl2 kernel 5.15.180.1-1
Microsoft cbl2 kernel 5.15.148.1-1
redhat/kernel<6.5
6.5
Linux Linux kernel<=6.4.16
redhat Enterprise Linux=8.0
redhat Enterprise Linux=9.0
debian/linux<6.1.52-1
6.1.52-1
debian/linux<6.4.4-1
6.4.4-1
debian/linux<6.4.4-1
6.4.4-1
debian/linux
6.1.176-16.1.190-16.12.107-16.12.115-27.2.15-1
ubuntu/linux-azure<4.15.0-1176.191~14.04.1
4.15.0-1176.191~14.04.1
ubuntu/linux-aws-hwe<4.15.0-1167.180~16.04.1
4.15.0-1167.180~16.04.1
ubuntu/linux-azure<4.15.0-1176.191~16.04.1
4.15.0-1176.191~16.04.1
ubuntu/linux-gcp<4.15.0-1161.178~16.04.1
4.15.0-1161.178~16.04.1
ubuntu/linux-hwe<4.15.0-224.236~16.04.1
4.15.0-224.236~16.04.1
ubuntu/linux-oracle<4.15.0-1130.141~16.04.1
4.15.0-1130.141~16.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux<4.15.0-224.236
4.15.0-224.236
ubuntu/linux-aws<4.15.0-1167.180
4.15.0-1167.180
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-aws-5.4<5.4.0-1113.123~18.04.1
5.4.0-1113.123~18.04.1
ubuntu/linux-azure*
ubuntu/linux-azure-4.15<4.15.0-1176.191
4.15.0-1176.191
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-5.4<5.4.0-1119.126~18.04.2
5.4.0-1119.126~18.04.2
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-4.15<4.15.0-1161.178
4.15.0-1161.178
ubuntu/linux-gcp-5.3*
ubuntu/linux-gcp-5.4<5.4.0-1117.126~18.04.1
5.4.0-1117.126~18.04.1
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-5.4<5.4.0-166.183~18.04.2
5.4.0-166.183~18.04.2
ubuntu/linux-ibm-5.4<5.4.0-1060.65~18.04.1
5.4.0-1060.65~18.04.1
ubuntu/linux-kvm<4.15.0-1151.156
4.15.0-1151.156
ubuntu/linux-oem*
ubuntu/linux-oracle<4.15.0-1130.141
4.15.0-1130.141
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-oracle-5.4<5.4.0-1112.121~18.04.4
5.4.0-1112.121~18.04.4
ubuntu/linux-raspi-5.4<5.4.0-1097.109~18.04.2
5.4.0-1097.109~18.04.2
ubuntu/linux-aws-fips<4.15.0-2106.112
4.15.0-2106.112
ubuntu/linux-azure-fips<4.15.0-2085.91
4.15.0-2085.91
ubuntu/linux-fips<4.15.0-1122.133
4.15.0-1122.133
ubuntu/linux-gcp-fips<4.15.0-2069.74
4.15.0-2069.74
ubuntu/linux<5.4.0-166.183
5.4.0-166.183
ubuntu/linux-aws<5.4.0-1113.123
5.4.0-1113.123
ubuntu/linux-aws-5.15<5.15.0-1047.52~20.04.1
5.15.0-1047.52~20.04.1
ubuntu/linux-azure<5.4.0-1119.126
5.4.0-1119.126
ubuntu/linux-azure-5.15<5.15.0-1049.56~20.04.1
5.15.0-1049.56~20.04.1
ubuntu/linux-bluefield<5.4.0-1074.80
5.4.0-1074.80
ubuntu/linux-gcp<5.4.0-1117.126
5.4.0-1117.126
ubuntu/linux-gcp-5.15<5.15.0-1044.52~20.04.1
5.15.0-1044.52~20.04.1
ubuntu/linux-gkeop<5.4.0-1080.84
5.4.0-1080.84
ubuntu/linux-gkeop-5.15<5.15.0-1030.35~20.04.1
5.15.0-1030.35~20.04.1
ubuntu/linux-hwe-5.15<5.15.0-86.96~20.04.1
5.15.0-86.96~20.04.1
ubuntu/linux-ibm<5.4.0-1060.65
5.4.0-1060.65
ubuntu/linux-ibm-5.15<5.15.0-1040.43~20.04.1
5.15.0-1040.43~20.04.1
ubuntu/linux-intel-iotg-5.15<5.15.0-1043.49~20.04.1
5.15.0-1043.49~20.04.1
ubuntu/linux-iot<5.4.0-1025.26
5.4.0-1025.26
ubuntu/linux-kvm<5.4.0-1102.108
5.4.0-1102.108
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-86.95~20.04.1
5.15.0-86.95~20.04.1
ubuntu/linux-nvidia-tegra-5.15<5.15.0-1018.18~20.04.1
5.15.0-1018.18~20.04.1
ubuntu/linux-oracle<5.4.0-1112.121
5.4.0-1112.121
ubuntu/linux-oracle-5.15<5.15.0-1045.51~20.04.1
5.15.0-1045.51~20.04.1
ubuntu/linux-raspi<5.4.0-1097.109
5.4.0-1097.109
ubuntu/linux-riscv-5.15<5.15.0-1043.47~20.04.1
5.15.0-1043.47~20.04.1
ubuntu/linux-xilinx-zynqmp<5.4.0-1033.37
5.4.0-1033.37
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-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<5.4.0-1113.123+fips1
5.4.0-1113.123+fips1
ubuntu/linux-azure-fips<5.4.0-1119.126+fips1
5.4.0-1119.126+fips1
ubuntu/linux-fips<5.4.0-1088.97
5.4.0-1088.97
ubuntu/linux-gcp-fips<5.4.0-1117.126+fips1
5.4.0-1117.126+fips1
ubuntu/linux<5.15.0-86.96
5.15.0-86.96
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1047.52
5.15.0-1047.52
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-azure<5.15.0-1049.56
5.15.0-1049.56
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-fde<5.15.0-1049.56.1
5.15.0-1049.56.1
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp<5.15.0-1044.52
5.15.0-1044.52
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gke<5.15.0-1044.49
5.15.0-1044.49
ubuntu/linux-gkeop<5.15.0-1030.35
5.15.0-1030.35
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-ibm<5.15.0-1040.43
5.15.0-1040.43
ubuntu/linux-intel-iotg<5.15.0-1043.49
5.15.0-1043.49
ubuntu/linux-kvm<5.15.0-1044.49
5.15.0-1044.49
ubuntu/linux-lowlatency<5.15.0-86.95
5.15.0-86.95
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-nvidia<5.15.0-1037.37
5.15.0-1037.37
ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-tegra<5.15.0-1018.18
5.15.0-1018.18
ubuntu/linux-nvidia-tegra-igx<5.15.0-1005.5
5.15.0-1005.5
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oracle<5.15.0-1045.51
5.15.0-1045.51
ubuntu/linux-raspi<5.15.0-1040.43
5.15.0-1040.43
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-xilinx-zynqmp<5.15.0-1025.29
5.15.0-1025.29
ubuntu/linux-bluefield<5.15.0-1027.29
5.15.0-1027.29
ubuntu/linux-intel-iot-realtime<5.15.0-1040.42
5.15.0-1040.42
ubuntu/linux-realtime<5.15.0-1048.54
5.15.0-1048.54
ubuntu/linux-fips*
ubuntu/linux-raspi-realtime*
ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 6.5
  2. Upgrade

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

    Fixed in 6.1.52-1
  3. Upgrade

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

    Fixed in 6.4.4-1
  4. 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
  5. Upgrade

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

    Fixed in 4.15.0-1176.191~14.04.1
  6. Upgrade

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

    Fixed in 4.15.0-1167.180~16.04.1
  7. Upgrade

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

    Fixed in 4.15.0-1176.191~16.04.1
  8. Upgrade

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

    Fixed in 4.15.0-1161.178~16.04.1
  9. Upgrade

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

    Fixed in 4.15.0-224.236~16.04.1
  10. Upgrade

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

    Fixed in 4.15.0-1130.141~16.04.1
  11. Upgrade

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

    Fixed in 4.15.0-224.236
  12. Upgrade

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

    Fixed in 4.15.0-1167.180
  13. Upgrade

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

    Fixed in 5.4.0-1113.123~18.04.1
  14. Upgrade

    Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1176.191
  15. Upgrade

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

    Fixed in 5.4.0-1119.126~18.04.2
  16. Upgrade

    Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1161.178
  17. Upgrade

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

    Fixed in 5.4.0-1117.126~18.04.1
  18. Upgrade

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

    Fixed in 5.4.0-166.183~18.04.2
  19. Upgrade

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

    Fixed in 5.4.0-1060.65~18.04.1
  20. Upgrade

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

    Fixed in 4.15.0-1151.156
  21. Upgrade

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

    Fixed in 4.15.0-1130.141
  22. Upgrade

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

    Fixed in 5.4.0-1112.121~18.04.4
  23. Upgrade

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

    Fixed in 5.4.0-1097.109~18.04.2
  24. Upgrade

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

    Fixed in 4.15.0-2106.112
  25. Upgrade

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

    Fixed in 4.15.0-2085.91
  26. Upgrade

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

    Fixed in 4.15.0-1122.133
  27. Upgrade

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

    Fixed in 4.15.0-2069.74
  28. Upgrade

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

    Fixed in 5.4.0-166.183
  29. Upgrade

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

    Fixed in 5.4.0-1113.123
  30. Upgrade

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

    Fixed in 5.15.0-1047.52~20.04.1
  31. Upgrade

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

    Fixed in 5.4.0-1119.126
  32. Upgrade

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

    Fixed in 5.15.0-1049.56~20.04.1
  33. Upgrade

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

    Fixed in 5.4.0-1074.80
  34. Upgrade

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

    Fixed in 5.4.0-1117.126
  35. Upgrade

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

    Fixed in 5.15.0-1044.52~20.04.1
  36. Upgrade

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

    Fixed in 5.4.0-1080.84
  37. Upgrade

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

    Fixed in 5.15.0-1030.35~20.04.1
  38. Upgrade

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

    Fixed in 5.15.0-86.96~20.04.1
  39. Upgrade

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

    Fixed in 5.4.0-1060.65
  40. Upgrade

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

    Fixed in 5.15.0-1040.43~20.04.1
  41. Upgrade

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

    Fixed in 5.15.0-1043.49~20.04.1
  42. Upgrade

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

    Fixed in 5.4.0-1025.26
  43. Upgrade

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

    Fixed in 5.4.0-1102.108
  44. Upgrade

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

    Fixed in 5.15.0-86.95~20.04.1
  45. Upgrade

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

    Fixed in 5.15.0-1018.18~20.04.1
  46. Upgrade

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

    Fixed in 5.4.0-1112.121
  47. Upgrade

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

    Fixed in 5.15.0-1045.51~20.04.1
  48. Upgrade

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

    Fixed in 5.4.0-1097.109
  49. Upgrade

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

    Fixed in 5.15.0-1043.47~20.04.1
  50. Upgrade

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

    Fixed in 5.4.0-1033.37
  51. Upgrade

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

    Fixed in 5.4.0-1113.123+fips1
  52. Upgrade

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

    Fixed in 5.4.0-1119.126+fips1
  53. Upgrade

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

    Fixed in 5.4.0-1088.97
  54. Upgrade

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

    Fixed in 5.4.0-1117.126+fips1
  55. Upgrade

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

    Fixed in 5.15.0-86.96
  56. Upgrade

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

    Fixed in 5.15.0-1047.52
  57. Upgrade

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

    Fixed in 5.15.0-1049.56
  58. Upgrade

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

    Fixed in 5.15.0-1049.56.1
  59. Upgrade

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

    Fixed in 5.15.0-1044.52
  60. Upgrade

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

    Fixed in 5.15.0-1044.49
  61. Upgrade

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

    Fixed in 5.15.0-1030.35
  62. Upgrade

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

    Fixed in 5.15.0-1040.43
  63. Upgrade

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

    Fixed in 5.15.0-1043.49
  64. Upgrade

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

    Fixed in 5.15.0-1044.49
  65. Upgrade

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

    Fixed in 5.15.0-86.95
  66. Upgrade

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

    Fixed in 5.15.0-1037.37
  67. Upgrade

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

    Fixed in 5.15.0-1018.18
  68. Upgrade

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

    Fixed in 5.15.0-1005.5
  69. Upgrade

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

    Fixed in 5.15.0-1045.51
  70. Upgrade

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

    Fixed in 5.15.0-1040.43
  71. Upgrade

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

    Fixed in 5.15.0-1025.29
  72. Upgrade

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

    Fixed in 5.15.0-1027.29
  73. Upgrade

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

    Fixed in 5.15.0-1040.42
  74. Upgrade

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

    Fixed in 5.15.0-1048.54

Event History

Jan 17, 2024
Data Sourced
via Red Hat·09:18 AM
DescriptionSeverityAffected Software
CVE Published
via MITRE·03:14 PM
Data Sourced
via MITRE·03:14 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jan 26, 2024
Data Sourced
via Microsoft·08:00 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:00 AM
Affected Software
Nov 11, 2026
Data Sourced
via OSV·09:38 AM
Affected Software

Frequently Asked Questions

1

What is the severity of CVE-2024-0639?

CVE-2024-0639 is classified as a critical vulnerability due to its ability to trigger a deadlock that may crash the system.

2

How do I fix CVE-2024-0639?

To fix CVE-2024-0639, upgrade to the fixed versions of the kernel specified by your distribution, such as Kernel 6.5 for Red Hat or the relevant packages for Debian.

3

What systems are affected by CVE-2024-0639?

CVE-2024-0639 affects various Linux kernel versions, particularly those prior to version 6.5 and multiple versions of Debian and Red Hat Enterprise Linux.

4

What can happen if CVE-2024-0639 is exploited?

If exploited, CVE-2024-0639 can lead to system instability, including potential crashes from deadlock conditions.

5

When was CVE-2024-0639 reported?

CVE-2024-0639 was identified in early 2024, as part of ongoing assessments of the Linux kernel.

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