USN-5267-2
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4 regression
USN-5267-1 fixed vulnerabilities in the Linux kernel. Unfortunately, that update introduced a regression that caused the kernel to freeze when accessing CIFS shares in some situations. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that the Bluetooth subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3640)
Likang Luo discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3752)
Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel did not properly perform bounds checking in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-42739)
What each source reports
OSV No score
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4 regression
USN-5267-1 fixed vulnerabilities in the Linux kernel. Unfortunately, that update introduced a regression that caused the kernel to freeze when accessing CIFS shares in some situations. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that the Bluetooth subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3640)
Likang Luo discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3752)
Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel did not properly perform bounds checking in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-42739)
- Record
USN-5267-2- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linux-aws-5.4Ubuntu:18.04:LTS |
before 5.4.0-1065.68~18.04.1, plus listed versions 5.4.0-1018.18~18.04.15.4.0-1020.20~18.04.25.4.0-1022.22~18.04.15.4.0-1024.24~18.04.15.4.0-1025.25~18.04.1 Show 26 moreShow less5.4.0-1028.29~18.04.15.4.0-1029.30~18.04.15.4.0-1030.31~18.04.15.4.0-1032.33~18.04.15.4.0-1034.35~18.04.15.4.0-1035.37~18.04.15.4.0-1037.39~18.04.15.4.0-1038.40~18.04.15.4.0-1039.41~18.04.15.4.0-1041.43~18.04.15.4.0-1043.45~18.04.15.4.0-1045.47~18.04.15.4.0-1047.49~18.04.15.4.0-1048.50~18.04.15.4.0-1049.51~18.04.15.4.0-1051.53~18.04.15.4.0-1054.57~18.04.15.4.0-1055.58~18.04.15.4.0-1056.59~18.04.15.4.0-1057.60~18.04.15.4.0-1058.61~18.04.35.4.0-1059.62~18.04.15.4.0-1060.63~18.04.15.4.0-1061.64~18.04.15.4.0-1063.66~18.04.15.4.0-1064.67~18.04.1 |
5.4.0-1065.68~18.04.1 |
linux-azure-5.4Ubuntu:18.04:LTS |
before 5.4.0-1069.72~18.04.1, plus listed versions 5.4.0-1020.20~18.04.15.4.0-1022.22~18.04.15.4.0-1023.23~18.04.15.4.0-1025.25~18.04.15.4.0-1026.26~18.04.1 Show 26 moreShow less5.4.0-1031.32~18.04.15.4.0-1032.33~18.04.15.4.0-1034.35~18.04.15.4.0-1035.36~18.04.15.4.0-1036.38~18.04.15.4.0-1039.41~18.04.15.4.0-1040.42~18.04.15.4.0-1041.43~18.04.15.4.0-1043.45~18.04.15.4.0-1044.46~18.04.15.4.0-1046.48~18.04.15.4.0-1047.49~18.04.15.4.0-1048.50~18.04.15.4.0-1049.51~18.04.15.4.0-1051.53~18.04.15.4.0-1055.57~18.04.15.4.0-1056.58~18.04.15.4.0-1058.60~18.04.15.4.0-1059.62~18.04.15.4.0-1061.64~18.04.15.4.0-1062.65~18.04.15.4.0-1063.66~18.04.15.4.0-1064.67~18.04.15.4.0-1065.68~18.04.15.4.0-1067.70~18.04.15.4.0-1068.71~18.04.1 |
5.4.0-1069.72~18.04.1 |
linux-gcp-5.4Ubuntu:18.04:LTS |
before 5.4.0-1064.68~18.04.1, plus listed versions 5.4.0-1019.19~18.04.25.4.0-1021.21~18.04.15.4.0-1022.22~18.04.15.4.0-1024.24~18.04.15.4.0-1025.25~18.04.1 Show 27 moreShow less5.4.0-1028.29~18.04.15.4.0-1029.31~18.04.15.4.0-1030.32~18.04.15.4.0-1032.34~18.04.15.4.0-1033.35~18.04.15.4.0-1034.37~18.04.15.4.0-1036.39~18.04.15.4.0-1037.40~18.04.15.4.0-1038.41~18.04.15.4.0-1040.43~18.04.15.4.0-1041.44~18.04.15.4.0-1042.45~18.04.15.4.0-1043.46~18.04.15.4.0-1044.47~18.04.25.4.0-1046.49~18.04.15.4.0-1049.53~18.04.15.4.0-1051.55~18.04.15.4.0-1052.56~18.04.15.4.0-1053.57~18.04.15.4.0-1055.59~18.04.15.4.0-1056.60~18.04.15.4.0-1057.61~18.04.15.4.0-1058.62~18.04.15.4.0-1059.63~18.04.15.4.0-1060.64~18.04.15.4.0-1062.66~18.04.15.4.0-1063.67~18.04.1 |
5.4.0-1064.68~18.04.1 |
linux-gke-5.4Ubuntu:18.04:LTS |
before 5.4.0-1062.65~18.04.1, plus listed versions 5.4.0-1025.25~18.04.15.4.0-1027.28~18.04.15.4.0-1029.31~18.04.15.4.0-1030.32~18.04.15.4.0-1032.34~18.04.1 Show 20 moreShow less5.4.0-1033.35~18.04.15.4.0-1035.37~18.04.15.4.0-1036.38~18.04.15.4.0-1037.39~18.04.15.4.0-1039.41~18.04.15.4.0-1040.42~18.04.15.4.0-1042.44~18.04.15.4.0-1043.45~18.04.15.4.0-1044.46~18.04.15.4.0-1046.48~18.04.15.4.0-1049.52~18.04.15.4.0-1051.54~18.04.15.4.0-1052.55~18.04.15.4.0-1053.56~18.04.15.4.0-1054.57~18.04.15.4.0-1055.58~18.04.15.4.0-1056.59~18.04.15.4.0-1057.60~18.04.15.4.0-1059.62~18.04.15.4.0-1061.64~18.04.1 |
5.4.0-1062.65~18.04.1 |
linux-gkeop-5.4Ubuntu:18.04:LTS |
before 5.4.0-1033.34~18.04.1, plus listed versions 5.4.0-1001.15.4.0-1003.35.4.0-1004.55.4.0-1005.65.4.0-1007.8~18.04.1 Show 20 moreShow less5.4.0-1008.9~18.04.15.4.0-1009.10~18.04.15.4.0-1010.11~18.04.15.4.0-1011.12~18.04.25.4.0-1012.13~18.04.15.4.0-1013.14~18.04.15.4.0-1014.15~18.04.15.4.0-1015.16~18.04.15.4.0-1016.17~18.04.15.4.0-1018.19~18.04.15.4.0-1021.22~18.04.15.4.0-1022.23~18.04.15.4.0-1023.24~18.04.15.4.0-1024.25~18.04.15.4.0-1025.26~18.04.15.4.0-1026.27~18.04.15.4.0-1027.28~18.04.15.4.0-1029.30~18.04.25.4.0-1031.32~18.04.15.4.0-1032.33~18.04.1 |
5.4.0-1033.34~18.04.1 |
linux-hwe-5.4Ubuntu:18.04:LTS |
before 5.4.0-99.112~18.04.1, plus listed versions 5.4.0-37.41~18.04.15.4.0-39.43~18.04.15.4.0-40.44~18.04.15.4.0-42.46~18.04.15.4.0-45.49~18.04.2 Show 33 moreShow less5.4.0-47.51~18.04.15.4.0-48.52~18.04.15.4.0-51.56~18.04.15.4.0-52.57~18.04.15.4.0-53.59~18.04.15.4.0-54.60~18.04.15.4.0-56.62~18.04.15.4.0-58.64~18.04.15.4.0-59.65~18.04.15.4.0-60.67~18.04.15.4.0-62.70~18.04.15.4.0-64.72~18.04.15.4.0-65.73~18.04.15.4.0-66.74~18.04.25.4.0-67.75~18.04.15.4.0-70.78~18.04.15.4.0-71.79~18.04.15.4.0-72.80~18.04.15.4.0-73.82~18.04.15.4.0-74.83~18.04.15.4.0-77.86~18.04.15.4.0-80.90~18.04.15.4.0-81.91~18.04.15.4.0-84.94~18.04.15.4.0-86.97~18.04.15.4.0-87.98~18.04.15.4.0-89.100~18.04.15.4.0-90.101~18.04.15.4.0-91.102~18.04.15.4.0-92.103~18.04.25.4.0-94.106~18.04.15.4.0-96.109~18.04.15.4.0-97.110~18.04.1 |
5.4.0-99.112~18.04.1 |
linux-oracle-5.4Ubuntu:18.04:LTS |
before 5.4.0-1063.67~18.04.1, plus listed versions 5.4.0-1019.19~18.04.15.4.0-1021.21~18.04.15.4.0-1022.22~18.04.15.4.0-1024.24~18.04.15.4.0-1025.25~18.04.1 Show 26 moreShow less5.4.0-1028.29~18.04.15.4.0-1029.31~18.04.15.4.0-1030.32~18.04.15.4.0-1033.355.4.0-1034.36~18.04.15.4.0-1035.38~18.04.15.4.0-1037.40~18.04.15.4.0-1038.41~18.04.15.4.0-1039.42~18.04.15.4.0-1041.44~18.04.15.4.0-1042.45~18.04.15.4.0-1043.46~18.04.15.4.0-1044.47~18.04.15.4.0-1046.50~18.04.25.4.0-1048.52~18.04.15.4.0-1049.53~18.04.15.4.0-1052.56~18.04.15.4.0-1053.57~18.04.15.4.0-1054.58~18.04.15.4.0-1055.59~18.04.15.4.0-1056.60~18.04.15.4.0-1057.61~18.04.15.4.0-1058.62~18.04.15.4.0-1059.63~18.04.15.4.0-1061.65~18.04.15.4.0-1062.66~18.04.1 |
5.4.0-1063.67~18.04.1 |
linuxUbuntu:20.04:LTS |
before 5.4.0-99.112, plus listed versions 5.3.0-18.195.3.0-24.265.4.0-9.125.4.0-18.225.4.0-21.25 Show 45 moreShow less5.4.0-24.285.4.0-25.295.4.0-26.305.4.0-28.325.4.0-29.335.4.0-31.355.4.0-33.375.4.0-37.415.4.0-39.435.4.0-40.445.4.0-42.465.4.0-45.495.4.0-47.515.4.0-48.525.4.0-51.565.4.0-52.575.4.0-53.595.4.0-54.605.4.0-56.625.4.0-58.645.4.0-59.655.4.0-60.675.4.0-62.705.4.0-64.725.4.0-65.735.4.0-66.745.4.0-67.755.4.0-70.785.4.0-71.795.4.0-72.805.4.0-73.825.4.0-74.835.4.0-77.865.4.0-80.905.4.0-81.915.4.0-84.945.4.0-86.975.4.0-88.995.4.0-89.1005.4.0-90.1015.4.0-91.1025.4.0-92.1035.4.0-94.1065.4.0-96.1095.4.0-97.110 |
5.4.0-99.112 |
linux-awsUbuntu:20.04:LTS |
before 5.4.0-1065.68, plus listed versions 5.3.0-1003.35.3.0-1008.95.3.0-1009.105.3.0-1010.115.4.0-1005.5 Show 38 moreShow less5.4.0-1007.75.4.0-1008.85.4.0-1009.95.4.0-1011.115.4.0-1015.155.4.0-1017.175.4.0-1018.185.4.0-1020.205.4.0-1021.215.4.0-1022.225.4.0-1024.245.4.0-1025.255.4.0-1028.295.4.0-1029.305.4.0-1030.315.4.0-1032.335.4.0-1034.355.4.0-1035.375.4.0-1037.395.4.0-1038.405.4.0-1039.415.4.0-1041.435.4.0-1043.455.4.0-1045.475.4.0-1047.495.4.0-1048.505.4.0-1049.515.4.0-1051.535.4.0-1054.575.4.0-1055.585.4.0-1056.595.4.0-1057.605.4.0-1058.615.4.0-1059.625.4.0-1060.635.4.0-1061.645.4.0-1063.665.4.0-1064.67 |
5.4.0-1065.68 |
linux-azureUbuntu:20.04:LTS |
before 5.4.0-1069.72, plus listed versions 5.3.0-1003.35.3.0-1008.95.3.0-1009.105.4.0-1006.65.4.0-1008.8 Show 36 moreShow less5.4.0-1009.95.4.0-1010.105.4.0-1012.125.4.0-1016.165.4.0-1019.195.4.0-1020.205.4.0-1022.225.4.0-1023.235.4.0-1025.255.4.0-1026.265.4.0-1031.325.4.0-1032.335.4.0-1034.355.4.0-1035.365.4.0-1036.385.4.0-1039.415.4.0-1040.425.4.0-1041.435.4.0-1043.455.4.0-1044.465.4.0-1046.485.4.0-1047.495.4.0-1048.505.4.0-1049.515.4.0-1051.535.4.0-1055.575.4.0-1056.585.4.0-1058.605.4.0-1059.625.4.0-1061.645.4.0-1062.655.4.0-1063.665.4.0-1064.675.4.0-1065.685.4.0-1067.705.4.0-1068.71 |
5.4.0-1069.72 |
Show 6 moreShow less
| Package | Affected | Fixed |
|---|---|---|
linux-gcpUbuntu:20.04:LTS |
before 5.4.0-1064.68, plus listed versions 5.3.0-1004.45.3.0-1009.105.3.0-1011.125.4.0-1005.55.4.0-1007.7 Show 37 moreShow less5.4.0-1008.85.4.0-1009.95.4.0-1011.115.4.0-1015.155.4.0-1018.185.4.0-1019.195.4.0-1021.215.4.0-1022.225.4.0-1024.245.4.0-1025.255.4.0-1028.295.4.0-1029.315.4.0-1030.325.4.0-1032.345.4.0-1033.355.4.0-1034.375.4.0-1036.395.4.0-1037.405.4.0-1038.415.4.0-1040.435.4.0-1041.445.4.0-1042.455.4.0-1043.465.4.0-1044.475.4.0-1046.495.4.0-1049.535.4.0-1051.555.4.0-1052.565.4.0-1053.575.4.0-1055.595.4.0-1056.605.4.0-1057.615.4.0-1058.625.4.0-1059.635.4.0-1060.645.4.0-1062.665.4.0-1063.67 |
5.4.0-1064.68 |
linux-gkeUbuntu:20.04:LTS |
before 5.4.0-1062.65, plus listed versions 5.4.0-1033.355.4.0-1035.375.4.0-1036.385.4.0-1037.395.4.0-1039.41 Show 15 moreShow less5.4.0-1041.435.4.0-1042.445.4.0-1043.455.4.0-1044.465.4.0-1046.485.4.0-1049.525.4.0-1051.545.4.0-1052.555.4.0-1053.565.4.0-1054.575.4.0-1055.585.4.0-1056.595.4.0-1057.605.4.0-1059.625.4.0-1061.64 |
5.4.0-1062.65 |
linux-gkeopUbuntu:20.04:LTS |
before 5.4.0-1033.34, plus listed versions 5.4.0-1008.95.4.0-1009.105.4.0-1010.115.4.0-1011.125.4.0-1012.13 Show 15 moreShow less5.4.0-1013.145.4.0-1014.155.4.0-1015.165.4.0-1016.175.4.0-1018.195.4.0-1021.225.4.0-1022.235.4.0-1023.245.4.0-1024.255.4.0-1025.265.4.0-1026.275.4.0-1027.285.4.0-1029.305.4.0-1031.325.4.0-1032.33 |
5.4.0-1033.34 |
linux-ibmUbuntu:20.04:LTS |
before 5.4.0-1014.15, plus listed versions 5.4.0-1003.45.4.0-1004.55.4.0-1005.65.4.0-1006.75.4.0-1007.8 Show 4 moreShow less5.4.0-1008.95.4.0-1010.115.4.0-1012.135.4.0-1013.14 |
5.4.0-1014.15 |
linux-kvmUbuntu:20.04:LTS |
before 5.4.0-1055.57, plus listed versions 5.3.0-1003.35.3.0-1008.95.3.0-1009.105.4.0-1004.45.4.0-1006.6 Show 33 moreShow less5.4.0-1007.75.4.0-1008.85.4.0-1009.95.4.0-1011.115.4.0-1015.155.4.0-1018.185.4.0-1020.205.4.0-1021.215.4.0-1023.235.4.0-1024.245.4.0-1026.275.4.0-1028.295.4.0-1030.315.4.0-1031.325.4.0-1032.335.4.0-1033.345.4.0-1034.355.4.0-1036.375.4.0-1037.385.4.0-1038.395.4.0-1039.405.4.0-1040.415.4.0-1041.425.4.0-1044.465.4.0-1045.475.4.0-1046.485.4.0-1047.495.4.0-1048.505.4.0-1049.515.4.0-1050.525.4.0-1051.535.4.0-1053.555.4.0-1054.56 |
5.4.0-1055.57 |
linux-oracleUbuntu:20.04:LTS |
before 5.4.0-1063.67, plus listed versions 5.3.0-1002.25.3.0-1007.85.3.0-1008.95.4.0-1005.55.4.0-1007.7 Show 36 moreShow less5.4.0-1008.85.4.0-1009.95.4.0-1011.115.4.0-1015.155.4.0-1018.185.4.0-1019.195.4.0-1021.215.4.0-1022.225.4.0-1024.245.4.0-1025.255.4.0-1028.295.4.0-1029.315.4.0-1030.325.4.0-1032.345.4.0-1034.365.4.0-1035.385.4.0-1037.405.4.0-1038.415.4.0-1039.425.4.0-1041.445.4.0-1042.455.4.0-1043.465.4.0-1045.495.4.0-1046.505.4.0-1048.525.4.0-1049.535.4.0-1052.565.4.0-1053.575.4.0-1054.585.4.0-1055.595.4.0-1056.605.4.0-1057.615.4.0-1058.625.4.0-1059.635.4.0-1061.655.4.0-1062.66 |
5.4.0-1063.67 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
USN-5267-2 is a vulnerability with no CVSS score yet in linux-aws-5.4, published February 11, 2022. No source lists public exploit code. Fixed in linux-aws-5.4 5.4.0-1065.68~18.04.1.