CVE-2024-0639: Kernel: potential deadlock on &net->sctp.addr_wq_lock leading to dos
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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
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redhat/Kernelto a version that resolves this vulnerability.Fixed in 6.5 - Upgrade
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debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.52-1 - Upgrade
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debian/linuxto a version that resolves this vulnerability.Fixed in 6.4.4-1 - Upgrade
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debian/linuxto 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 - Upgrade
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ubuntu/linux-azureto a version that resolves this vulnerability.Fixed in 4.15.0-1176.191~14.04.1 - Upgrade
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ubuntu/linux-aws-hweto a version that resolves this vulnerability.Fixed in 4.15.0-1167.180~16.04.1 - Upgrade
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ubuntu/linux-azureto a version that resolves this vulnerability.Fixed in 4.15.0-1176.191~16.04.1 - Upgrade
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ubuntu/linux-gcpto a version that resolves this vulnerability.Fixed in 4.15.0-1161.178~16.04.1 - Upgrade
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ubuntu/linux-hweto a version that resolves this vulnerability.Fixed in 4.15.0-224.236~16.04.1 - Upgrade
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ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 4.15.0-1130.141~16.04.1 - Upgrade
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ubuntu/linuxto a version that resolves this vulnerability.Fixed in 4.15.0-224.236 - Upgrade
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ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 4.15.0-1167.180 - Upgrade
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ubuntu/linux-aws-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1113.123~18.04.1 - Upgrade
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ubuntu/linux-azure-4.15to a version that resolves this vulnerability.Fixed in 4.15.0-1176.191 - Upgrade
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ubuntu/linux-azure-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1119.126~18.04.2 - Upgrade
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ubuntu/linux-gcp-4.15to a version that resolves this vulnerability.Fixed in 4.15.0-1161.178 - Upgrade
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ubuntu/linux-gcp-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1117.126~18.04.1 - Upgrade
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ubuntu/linux-hwe-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-166.183~18.04.2 - Upgrade
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ubuntu/linux-ibm-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1060.65~18.04.1 - Upgrade
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ubuntu/linux-kvmto a version that resolves this vulnerability.Fixed in 4.15.0-1151.156 - Upgrade
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ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 4.15.0-1130.141 - Upgrade
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ubuntu/linux-oracle-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1112.121~18.04.4 - Upgrade
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ubuntu/linux-raspi-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1097.109~18.04.2 - Upgrade
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ubuntu/linux-aws-fipsto a version that resolves this vulnerability.Fixed in 4.15.0-2106.112 - Upgrade
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ubuntu/linux-azure-fipsto a version that resolves this vulnerability.Fixed in 4.15.0-2085.91 - Upgrade
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ubuntu/linux-fipsto a version that resolves this vulnerability.Fixed in 4.15.0-1122.133 - Upgrade
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ubuntu/linux-gcp-fipsto a version that resolves this vulnerability.Fixed in 4.15.0-2069.74 - Upgrade
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ubuntu/linuxto a version that resolves this vulnerability.Fixed in 5.4.0-166.183 - Upgrade
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ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 5.4.0-1113.123 - Upgrade
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ubuntu/linux-aws-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1047.52~20.04.1 - Upgrade
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ubuntu/linux-azureto a version that resolves this vulnerability.Fixed in 5.4.0-1119.126 - Upgrade
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ubuntu/linux-azure-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1049.56~20.04.1 - Upgrade
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ubuntu/linux-bluefieldto a version that resolves this vulnerability.Fixed in 5.4.0-1074.80 - Upgrade
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ubuntu/linux-gcpto a version that resolves this vulnerability.Fixed in 5.4.0-1117.126 - Upgrade
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ubuntu/linux-gcp-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1044.52~20.04.1 - Upgrade
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ubuntu/linux-gkeopto a version that resolves this vulnerability.Fixed in 5.4.0-1080.84 - Upgrade
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ubuntu/linux-gkeop-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1030.35~20.04.1 - Upgrade
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ubuntu/linux-hwe-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-86.96~20.04.1 - Upgrade
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ubuntu/linux-ibmto a version that resolves this vulnerability.Fixed in 5.4.0-1060.65 - Upgrade
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ubuntu/linux-ibm-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1040.43~20.04.1 - Upgrade
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ubuntu/linux-intel-iotg-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1043.49~20.04.1 - Upgrade
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ubuntu/linux-iotto a version that resolves this vulnerability.Fixed in 5.4.0-1025.26 - Upgrade
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ubuntu/linux-kvmto a version that resolves this vulnerability.Fixed in 5.4.0-1102.108 - Upgrade
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ubuntu/linux-lowlatency-hwe-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-86.95~20.04.1 - Upgrade
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ubuntu/linux-nvidia-tegra-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1018.18~20.04.1 - Upgrade
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ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 5.4.0-1112.121 - Upgrade
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ubuntu/linux-oracle-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1045.51~20.04.1 - Upgrade
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ubuntu/linux-raspito a version that resolves this vulnerability.Fixed in 5.4.0-1097.109 - Upgrade
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ubuntu/linux-riscv-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1043.47~20.04.1 - Upgrade
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ubuntu/linux-xilinx-zynqmpto a version that resolves this vulnerability.Fixed in 5.4.0-1033.37 - Upgrade
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ubuntu/linux-aws-fipsto a version that resolves this vulnerability.Fixed in 5.4.0-1113.123+fips1 - Upgrade
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ubuntu/linux-azure-fipsto a version that resolves this vulnerability.Fixed in 5.4.0-1119.126+fips1 - Upgrade
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ubuntu/linux-fipsto a version that resolves this vulnerability.Fixed in 5.4.0-1088.97 - Upgrade
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ubuntu/linux-gcp-fipsto a version that resolves this vulnerability.Fixed in 5.4.0-1117.126+fips1 - Upgrade
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ubuntu/linuxto a version that resolves this vulnerability.Fixed in 5.15.0-86.96 - Upgrade
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ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 5.15.0-1047.52 - Upgrade
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ubuntu/linux-azureto a version that resolves this vulnerability.Fixed in 5.15.0-1049.56 - Upgrade
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ubuntu/linux-azure-fdeto a version that resolves this vulnerability.Fixed in 5.15.0-1049.56.1 - Upgrade
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ubuntu/linux-gcpto a version that resolves this vulnerability.Fixed in 5.15.0-1044.52 - Upgrade
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ubuntu/linux-gketo a version that resolves this vulnerability.Fixed in 5.15.0-1044.49 - Upgrade
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ubuntu/linux-gkeopto a version that resolves this vulnerability.Fixed in 5.15.0-1030.35 - Upgrade
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ubuntu/linux-ibmto a version that resolves this vulnerability.Fixed in 5.15.0-1040.43 - Upgrade
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ubuntu/linux-intel-iotgto a version that resolves this vulnerability.Fixed in 5.15.0-1043.49 - Upgrade
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ubuntu/linux-kvmto a version that resolves this vulnerability.Fixed in 5.15.0-1044.49 - Upgrade
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ubuntu/linux-lowlatencyto a version that resolves this vulnerability.Fixed in 5.15.0-86.95 - Upgrade
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ubuntu/linux-nvidiato a version that resolves this vulnerability.Fixed in 5.15.0-1037.37 - Upgrade
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ubuntu/linux-nvidia-tegrato a version that resolves this vulnerability.Fixed in 5.15.0-1018.18 - Upgrade
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ubuntu/linux-nvidia-tegra-igxto a version that resolves this vulnerability.Fixed in 5.15.0-1005.5 - Upgrade
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ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 5.15.0-1045.51 - Upgrade
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ubuntu/linux-raspito a version that resolves this vulnerability.Fixed in 5.15.0-1040.43 - Upgrade
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ubuntu/linux-xilinx-zynqmpto a version that resolves this vulnerability.Fixed in 5.15.0-1025.29 - Upgrade
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ubuntu/linux-bluefieldto a version that resolves this vulnerability.Fixed in 5.15.0-1027.29 - Upgrade
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ubuntu/linux-intel-iot-realtimeto a version that resolves this vulnerability.Fixed in 5.15.0-1040.42 - Upgrade
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ubuntu/linux-realtimeto a version that resolves this vulnerability.Fixed in 5.15.0-1048.54
Event History
Frequently Asked Questions
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.
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.
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.
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.
When was CVE-2024-0639 reported?
CVE-2024-0639 was identified in early 2024, as part of ongoing assessments of the Linux kernel.