CVE-2022-45887: Race Condition
An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusbdec.c has a memory leak because of the lack of a dvbfrontenddetach call.
Other sources
Linux Kernel is vulnerable to a denial of service, caused by a memory leak in drivers/media/usb/ttusb-dec/ttusbdec.c By sending a specially-crafted request, a local authenticated attacker could exploit this vulnerability to cause a denial of service condition.
— IBM
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 6.4 - 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 7.2.12-1Fixed in 7.2.15-1 - Upgrade
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debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.37-1 - Upgrade
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debian/linuxto a version that resolves this vulnerability.Fixed in 6.3.7-1 - Upgrade
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ubuntu/linux-aws-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1109.118~18.04.1 - Upgrade
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ubuntu/linux-azure-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1115.122~18.04.1 - Upgrade
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ubuntu/linux-gcp-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1112.121~18.04.1 - Upgrade
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ubuntu/linux-hwe-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-162.179~18.04.1 - Upgrade
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ubuntu/linux-ibm-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1056.61~18.04.1 - Upgrade
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ubuntu/linux-oracle-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1108.117~18.04.1 - Upgrade
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ubuntu/linux-raspi-5.4to a version that resolves this vulnerability.Fixed in 5.4.0-1093.104~18.04.1 - Upgrade
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ubuntu/linuxto a version that resolves this vulnerability.Fixed in 5.4.0-162.179 - Upgrade
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ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 5.4.0-1109.118 - Upgrade
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ubuntu/linux-aws-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1044.49~20.04.1 - Upgrade
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ubuntu/linux-azureto a version that resolves this vulnerability.Fixed in 5.4.0-1115.122 - Upgrade
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ubuntu/linux-azure-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1046.53~20.04.1 - Upgrade
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ubuntu/linux-bluefieldto a version that resolves this vulnerability.Fixed in 5.4.0-1070.76 - Upgrade
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ubuntu/linux-gcpto a version that resolves this vulnerability.Fixed in 5.4.0-1112.121 - Upgrade
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ubuntu/linux-gcp-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1041.49~20.04.1 - Upgrade
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ubuntu/linux-gkeopto a version that resolves this vulnerability.Fixed in 5.4.0-1076.80 - Upgrade
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ubuntu/linux-gkeop-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1027.32~20.04.1 - Upgrade
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ubuntu/linux-hwe-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-83.92~20.04.1 - Upgrade
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ubuntu/linux-ibmto a version that resolves this vulnerability.Fixed in 5.4.0-1056.61 - Upgrade
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ubuntu/linux-ibm-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1037.40~20.04.1 - Upgrade
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ubuntu/linux-intel-iotg-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1040.46~20.04.1 - Upgrade
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ubuntu/linux-iotto a version that resolves this vulnerability.Fixed in 5.4.0-1021.22 - Upgrade
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ubuntu/linux-kvmto a version that resolves this vulnerability.Fixed in 5.4.0-1098.104 - Upgrade
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ubuntu/linux-lowlatency-hwe-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-83.92~20.04.1 - Upgrade
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ubuntu/linux-nvidia-tegra-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1017.17~20.04.1 - Upgrade
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ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 5.4.0-1108.117 - Upgrade
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ubuntu/linux-oracle-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1042.48~20.04.1 - Upgrade
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ubuntu/linux-raspito a version that resolves this vulnerability.Fixed in 5.4.0-1093.104 - Upgrade
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ubuntu/linux-riscv-5.15to a version that resolves this vulnerability.Fixed in 5.15.0-1040.44~20.04.3 - Upgrade
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ubuntu/linux-xilinx-zynqmpto a version that resolves this vulnerability.Fixed in 5.4.0-1029.33 - Upgrade
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ubuntu/linux-aws-fipsto a version that resolves this vulnerability.Fixed in 5.4.0-1109.118+fips1 - Upgrade
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ubuntu/linux-azure-fipsto a version that resolves this vulnerability.Fixed in 5.4.0-1115.122+fips1 - Upgrade
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ubuntu/linux-fipsto a version that resolves this vulnerability.Fixed in 5.4.0-1084.93 - Upgrade
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ubuntu/linux-gcp-fipsto a version that resolves this vulnerability.Fixed in 5.4.0-1112.121+fips1 - Upgrade
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ubuntu/linuxto a version that resolves this vulnerability.Fixed in 5.15.0-83.92 - Upgrade
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ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 5.15.0-1044.49 - Upgrade
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ubuntu/linux-aws-6.2to a version that resolves this vulnerability.Fixed in 6.2.0-1013.13~22.04.1 - Upgrade
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ubuntu/linux-azureto a version that resolves this vulnerability.Fixed in 5.15.0-1046.53 - Upgrade
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ubuntu/linux-azure-6.2to a version that resolves this vulnerability.Fixed in 6.2.0-1014.14~22.04.1 - Upgrade
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ubuntu/linux-azure-fdeto a version that resolves this vulnerability.Fixed in 5.15.0-1046.53.1 - Upgrade
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ubuntu/linux-azure-fde-6.2to a version that resolves this vulnerability.Fixed in 6.2.0-1014.14~22.04.1.1 - Upgrade
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ubuntu/linux-gcpto a version that resolves this vulnerability.Fixed in 5.15.0-1041.49 - Upgrade
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ubuntu/linux-gcp-6.2to a version that resolves this vulnerability.Fixed in 6.2.0-1016.18~22.04.1 - Upgrade
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ubuntu/linux-gketo a version that resolves this vulnerability.Fixed in 5.15.0-1041.46 - Upgrade
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ubuntu/linux-gkeopto a version that resolves this vulnerability.Fixed in 5.15.0-1027.32 - Upgrade
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ubuntu/linux-hwe-6.2to a version that resolves this vulnerability.Fixed in 6.2.0-34.34~22.04.1 - Upgrade
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ubuntu/linux-ibmto a version that resolves this vulnerability.Fixed in 5.15.0-1037.40 - Upgrade
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ubuntu/linux-intel-iotgto a version that resolves this vulnerability.Fixed in 5.15.0-1039.45 - Upgrade
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ubuntu/linux-kvmto a version that resolves this vulnerability.Fixed in 5.15.0-1041.46 - Upgrade
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ubuntu/linux-lowlatencyto a version that resolves this vulnerability.Fixed in 5.15.0-83.92 - Upgrade
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ubuntu/linux-lowlatency-hwe-6.2to a version that resolves this vulnerability.Fixed in 6.2.0-1014.14~22.04.1 - Upgrade
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ubuntu/linux-nvidiato a version that resolves this vulnerability.Fixed in 5.15.0-1032.32 - Upgrade
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ubuntu/linux-nvidia-6.2to a version that resolves this vulnerability.Fixed in 6.2.0-1011.11 - Upgrade
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ubuntu/linux-nvidia-tegrato a version that resolves this vulnerability.Fixed in 5.15.0-1017.17 - Upgrade
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ubuntu/linux-nvidia-tegra-igxto a version that resolves this vulnerability.Fixed in 5.15.0-1004.4 - Upgrade
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ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 5.15.0-1042.48 - Upgrade
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ubuntu/linux-raspito a version that resolves this vulnerability.Fixed in 5.15.0-1037.40 - 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 5.15.0-1023.25 - Upgrade
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ubuntu/linux-intel-iot-realtimeto a version that resolves this vulnerability.Fixed in 5.15.0-1038.40 - Upgrade
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ubuntu/linux-realtimeto a version that resolves this vulnerability.Fixed in 5.15.0-1045.50 - Configuration
Fix the memory leak by adding the missing dvb_frontend_detach call in drivers/media/usb/ttusb-dec/ttusb_dec.c (the issue is described as being caused by lack of a dvb_frontend_detach call).
Linux kernel (drivers/media/usb/ttusb-dec/ttusb_dec.c) dvb_frontend_detach call in ttusb_dec.c = Add missing dvb_frontend_detach call
Event History
Frequently Asked Questions
What is the severity of CVE-2022-45887?
CVE-2022-45887 has a medium severity due to its memory leak in the Linux kernel.
How do I fix CVE-2022-45887?
To fix CVE-2022-45887, upgrade the Linux kernel to version 6.4 or later.
Which products are affected by CVE-2022-45887?
CVE-2022-45887 affects Linux kernel versions up to 6.0.9, as well as certain IBM Security Verify Governance products.
Is there a workaround for CVE-2022-45887?
Currently, no official workaround is available for CVE-2022-45887 beyond applying the kernel updates.
What is the nature of the vulnerability in CVE-2022-45887?
CVE-2022-45887 involves a memory leak caused by a missing dvb_frontend_detach call in the Linux kernel.