Vulnerability in linux-aws
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as UBUNTU-CVE-2024-46787 has been found in linux-aws.
Risk of unauthorized operations or information disclosure.
What to do: upgrade linux-aws to 4.4.0-1145.151 or later.
If unsure, ask your IT team or search "linux-aws UBUNTU-CVE-2024-46787" on the vendor's site.
UBUNTU-CVE-2024-46787 (linux-aws)
Attack vector: local / no user interaction
Patched: 4.4.0-1145.151 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (unclassified) exists in linux-aws.
Check the vendor advisory for the affected versions of linux-aws.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 4.4.0-1145.151.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'linux-aws' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1
Identify exposureidentify
grep -r 'linux-aws' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
linux-awsを grep し、稼働しているサービス・バージョンを把握する。 -
2
Apply patchpatch
Upgrade linux-aws to 4.4.0-1145.151ステージング環境で 4.4.0-1145.151 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3
Post-deployment verificationverify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| Ubuntu:Pro:14.04:LTS | linux-aws |
< 4.4.0-1145.151 |
4.4.0-1145.151 |
| Ubuntu:Pro:14.04:LTS | linux-azure |
< 4.15.0-1190.205~14.04.1 |
4.15.0-1190.205~14.04.1 |
| Ubuntu:Pro:14.04:LTS | linux-lts-xenial |
< 4.4.0-270.304~14.04.1 |
4.4.0-270.304~14.04.1 |
| Ubuntu:Pro:16.04:LTS | linux |
< 4.4.0-270.304 |
4.4.0-270.304 |
| Ubuntu:Pro:16.04:LTS | linux-aws |
< 4.4.0-1183.198 |
4.4.0-1183.198 |
| Ubuntu:Pro:16.04:LTS | linux-aws-hwe |
< 4.15.0-1182.195~16.04.1 |
4.15.0-1182.195~16.04.1 |
| Ubuntu:Pro:16.04:LTS | linux-azure |
< 4.15.0-1190.205~16.04.1 |
4.15.0-1190.205~16.04.1 |
| Ubuntu:Pro:16.04:LTS | linux-gcp |
< 4.15.0-1175.192~16.04.1 |
4.15.0-1175.192~16.04.1 |
| Ubuntu:Pro:16.04:LTS | linux-hwe |
< 4.15.0-239.251~16.04.1 |
4.15.0-239.251~16.04.1 |
| Ubuntu:16.04:LTS | linux-hwe-edge |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-kvm |
< 4.4.0-1146.157 |
4.4.0-1146.157 |
| Ubuntu:Pro:16.04:LTS | linux-oracle |
< 4.15.0-1144.155~16.04.1 |
4.15.0-1144.155~16.04.1 |
| Ubuntu:Pro:FIPS:16.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux |
< 4.15.0-239.251 |
4.15.0-239.251 |
| Ubuntu:Pro:18.04:LTS | linux-aws |
< 4.15.0-1182.195 |
4.15.0-1182.195 |
| Ubuntu:18.04:LTS | linux-aws-5.0 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-aws-5.3 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-aws-5.4 |
< 5.4.0-1148.158~18.04.1 |
5.4.0-1148.158~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-azure-4.15 |
< 4.15.0-1190.205 |
4.15.0-1190.205 |
| Ubuntu:18.04:LTS | linux-azure-5.3 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-azure-5.4 |
< 5.4.0-1153.160~18.04.1 |
5.4.0-1153.160~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure-edge |
All versions |
— |
| Ubuntu:18.04:LTS | linux-gcp |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-gcp-4.15 |
< 4.15.0-1175.192 |
4.15.0-1175.192 |
| Ubuntu:18.04:LTS | linux-gcp-5.3 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-gcp-5.4 |
< 5.4.0-1151.160~18.04.1 |
5.4.0-1151.160~18.04.1 |
| Ubuntu:18.04:LTS | linux-gke-4.15 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-gke-5.4 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-gkeop-5.4 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-hwe |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-hwe-5.4 |
< 5.4.0-219.239~18.04.1 |
5.4.0-219.239~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe-edge |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-ibm-5.4 |
< 5.4.0-1094.99~18.04.1 |
5.4.0-1094.99~18.04.1 |
| Ubuntu:Pro:18.04:LTS | linux-kvm |
< 4.15.0-1165.170 |
4.15.0-1165.170 |
| Ubuntu:18.04:LTS | linux-oem |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-oracle |
< 4.15.0-1144.155 |
4.15.0-1144.155 |
| Ubuntu:18.04:LTS | linux-oracle-5.0 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-oracle-5.3 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-oracle-5.4 |
< 5.4.0-1146.156~18.04.1 |
5.4.0-1146.156~18.04.1 |
| Ubuntu:Pro:18.04:LTS | linux-raspi-5.4 |
< 5.4.0-1131.144~18.04.1 |
5.4.0-1131.144~18.04.1 |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-aws-fips |
< 4.15.0-2120.126 |
4.15.0-2120.126 |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-azure-fips |
< 4.15.0-2099.105 |
4.15.0-2099.105 |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-fips |
< 4.15.0-1137.148 |
4.15.0-1137.148 |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-gcp-fips |
< 4.15.0-2083.89 |
4.15.0-2083.89 |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-aws-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-azure-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-gcp-fips |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux |
< 5.4.0-219.239 |
5.4.0-219.239 |
| Ubuntu:Pro:20.04:LTS | linux-aws |
< 5.4.0-1148.158 |
5.4.0-1148.158 |
| Ubuntu:20.04:LTS | linux-aws-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-aws-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-aws-5.15 |
< 5.15.0-1087.94~20.04.1 |
5.15.0-1087.94~20.04.1 |
| Ubuntu:20.04:LTS | linux-aws-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-azure |
< 5.4.0-1153.160 |
5.4.0-1153.160 |
| Ubuntu:20.04:LTS | linux-azure-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-azure-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-azure-5.15 |
< 5.15.0-1094.103~20.04.1 |
5.15.0-1094.103~20.04.1 |
| Ubuntu:20.04:LTS | linux-azure-5.8 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-azure-fde |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-bluefield |
< 5.4.0-1107.114 |
5.4.0-1107.114 |
| Ubuntu:Pro:20.04:LTS | linux-gcp |
< 5.4.0-1151.160 |
5.4.0-1151.160 |
| Ubuntu:20.04:LTS | linux-gcp-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-gcp-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-gcp-5.15 |
< 5.15.0-1086.95~20.04.1 |
5.15.0-1086.95~20.04.1 |
| Ubuntu:20.04:LTS | linux-gcp-5.8 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-gke |
All versions |
— |
| Ubuntu:20.04:LTS | linux-gke-5.15 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-gkeop |
All versions |
— |
| Ubuntu:20.04:LTS | linux-gkeop-5.15 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-hwe-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-hwe-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-hwe-5.15 |
< 5.15.0-143.153~20.04.1 |
5.15.0-143.153~20.04.1 |
| Ubuntu:20.04:LTS | linux-hwe-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-ibm |
< 5.4.0-1094.99 |
5.4.0-1094.99 |
| Ubuntu:Pro:20.04:LTS | linux-ibm-5.15 |
< 5.15.0-1079.82~20.04.1 |
5.15.0-1079.82~20.04.1 |
| Ubuntu:20.04:LTS | linux-intel-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-intel-iotg-5.15 |
< 5.15.0-1083.89~20.04.1 |
5.15.0-1083.89~20.04.1 |
| Ubuntu:Pro:20.04:LTS | linux-iot |
< 5.4.0-1052.55 |
5.4.0-1052.55 |
| Ubuntu:Pro:20.04:LTS | linux-kvm |
< 5.4.0-1135.144 |
5.4.0-1135.144 |
| Ubuntu:Pro:20.04:LTS | linux-lowlatency-hwe-5.15 |
< 5.15.0-143.153~20.04.1 |
5.15.0-143.153~20.04.1 |
| Ubuntu:Pro:20.04:LTS | linux-nvidia-tegra-5.15 |
< 5.15.0-1040.40~20.04.1 |
5.15.0-1040.40~20.04.1 |
| Ubuntu:20.04:LTS | linux-oem-5.10 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-oem-5.13 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-oem-5.14 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-oem-5.6 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-oracle |
< 5.4.0-1146.156 |
5.4.0-1146.156 |
| Ubuntu:20.04:LTS | linux-oracle-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-oracle-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-oracle-5.15 |
< 5.15.0-1084.90~20.04.1 |
5.15.0-1084.90~20.04.1 |
| Ubuntu:20.04:LTS | linux-oracle-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-raspi |
< 5.4.0-1131.144 |
5.4.0-1131.144 |
| Ubuntu:20.04:LTS | linux-raspi2 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-riscv |
All versions |
— |
| Ubuntu:20.04:LTS | linux-riscv-5.11 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-riscv-5.15 |
< 5.15.0-1082.86~20.04.1 |
5.15.0-1082.86~20.04.1 |
| Ubuntu:20.04:LTS | linux-riscv-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-xilinx-zynqmp |
< 5.4.0-1066.70 |
5.4.0-1066.70 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-aws-fips |
< 5.4.0-1148.158+fips1 |
5.4.0-1148.158+fips1 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-azure-fips |
< 5.4.0-1154.161+fips1 |
5.4.0-1154.161+fips1 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-fips |
< 5.4.0-1122.132 |
5.4.0-1122.132 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-gcp-fips |
< 5.4.0-1151.160+fips1 |
5.4.0-1151.160+fips1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-aws-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-azure-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-gcp-fips |
All versions |
— |
| Ubuntu:22.04:LTS | linux |
< 5.15.0-143.153 |
5.15.0-143.153 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws |
< 5.15.0-1087.94 |
5.15.0-1087.94 |
| Ubuntu:22.04:LTS | linux-aws-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws-6.8 |
< 6.8.0-1020.22~22.04.1 |
6.8.0-1020.22~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure |
< 5.15.0-1092.101 |
5.15.0-1092.101 |
| Ubuntu:22.04:LTS | linux-azure-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-azure-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-azure-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-azure-6.8 |
< 6.8.0-1020.23~22.04.1 |
6.8.0-1020.23~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure-fde |
< 5.15.0-1092.101.1 |
5.15.0-1092.101.1 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-gcp |
< 5.15.0-1086.95 |
5.15.0-1086.95 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-gcp-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-gcp-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-gcp-6.8 |
< 6.8.0-1019.21~22.04.1 |
6.8.0-1019.21~22.04.1 |
| Ubuntu:22.04:LTS | linux-gke |
< 5.15.0-1084.90 |
5.15.0-1084.90 |
| Ubuntu:22.04:LTS | linux-gkeop |
< 5.15.0-1069.77 |
5.15.0-1069.77 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-hwe-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-hwe-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-hwe-6.8 |
< 6.8.0-50.51~22.04.1 |
6.8.0-50.51~22.04.1 |
| Ubuntu:22.04:LTS | linux-ibm |
< 5.15.0-1079.82 |
5.15.0-1079.82 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 |
< 6.8.0-1017.17~22.04.1 |
6.8.0-1017.17~22.04.1 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime |
All versions |
— |
| Ubuntu:22.04:LTS | linux-intel-iotg |
< 5.15.0-1082.88 |
5.15.0-1082.88 |
| Ubuntu:22.04:LTS | linux-kvm |
< 5.15.0-1083.88 |
5.15.0-1083.88 |
| Ubuntu:22.04:LTS | linux-lowlatency |
< 5.15.0-143.153 |
5.15.0-143.153 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 |
< 6.8.0-50.51.1~22.04.1 |
6.8.0-50.51.1~22.04.1 |
| Ubuntu:22.04:LTS | linux-nvidia |
< 5.15.0-1081.82 |
5.15.0-1081.82 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 |
< 6.8.0-1019.21~22.04.1 |
6.8.0-1019.21~22.04.1 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra |
< 5.15.0-1040.40 |
5.15.0-1040.40 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx |
< 5.15.0-1029.29 |
5.15.0-1029.29 |
| Ubuntu:22.04:LTS | linux-oem-5.17 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oem-6.0 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oem-6.1 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oem-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oracle |
< 5.15.0-1084.90 |
5.15.0-1084.90 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oracle-6.8 |
< 6.8.0-1017.18~22.04.1 |
6.8.0-1017.18~22.04.1 |
| Ubuntu:22.04:LTS | linux-raspi |
< 5.15.0-1083.86 |
5.15.0-1083.86 |
| Ubuntu:22.04:LTS | linux-realtime |
All versions |
— |
| Ubuntu:22.04:LTS | linux-riscv |
All versions |
— |
| Ubuntu:22.04:LTS | linux-riscv-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-riscv-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-riscv-6.8 |
< 6.8.0-50.51.1~22.04.1 |
6.8.0-50.51.1~22.04.1 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-starfive-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-starfive-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp |
< 5.15.0-1051.55 |
5.15.0-1051.55 |
| Ubuntu:Nvidia-BlueField:22.04:LTS | linux-bluefield |
< 5.15.0-1070.72 |
5.15.0-1070.72 |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | linux-aws-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | linux-azure-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | linux-gcp-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-aws-fips |
< 5.15.0-1087.94+fips1 |
5.15.0-1087.94+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-azure-fips |
< 5.15.0-1094.103+fips1 |
5.15.0-1094.103+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-fips |
< 5.15.0-143.153+fips1 |
5.15.0-143.153+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-gcp-fips |
< 5.15.0-1086.95+fips1 |
5.15.0-1086.95+fips1 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-intel-iot-realtime |
< 5.15.0-1080.82 |
5.15.0-1080.82 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-realtime |
< 5.15.0-1087.96 |
5.15.0-1087.96 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-realtime-6.8 |
< 6.8.1-1013.14~22.04.1 |
6.8.1-1013.14~22.04.1 |
| Ubuntu:24.04:LTS | linux |
< 6.8.0-50.51 |
6.8.0-50.51 |
| Ubuntu:24.04:LTS | linux-aws |
< 6.8.0-1020.22 |
6.8.0-1020.22 |
| Ubuntu:24.04:LTS | linux-azure |
< 6.8.0-1020.23 |
6.8.0-1020.23 |
| Ubuntu:24.04:LTS | linux-gcp |
< 6.8.0-1019.21 |
6.8.0-1019.21 |
| Ubuntu:24.04:LTS | linux-gke |
< 6.8.0-1015.19 |
6.8.0-1015.19 |
| Ubuntu:24.04:LTS | linux-gkeop |
< 6.8.0-1002.4 |
6.8.0-1002.4 |
| Ubuntu:24.04:LTS | linux-ibm |
< 6.8.0-1017.17 |
6.8.0-1017.17 |
| Ubuntu:24.04:LTS | linux-lowlatency |
< 6.8.0-50.51.1 |
6.8.0-50.51.1 |
| Ubuntu:24.04:LTS | linux-nvidia |
< 6.8.0-1019.21 |
6.8.0-1019.21 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency |
< 6.8.0-1019.21.1 |
6.8.0-1019.21.1 |
| Ubuntu:24.04:LTS | linux-oem-6.8 |
< 6.8.0-1018.18 |
6.8.0-1018.18 |
| Ubuntu:24.04:LTS | linux-oracle |
< 6.8.0-1017.18 |
6.8.0-1017.18 |
| Ubuntu:24.04:LTS | linux-raspi |
< 6.8.0-1016.18 |
6.8.0-1016.18 |
| Ubuntu:24.04:LTS | linux-riscv |
< 6.8.0-50.51.1 |
6.8.0-50.51.1 |
| Ubuntu:24.04:LTS | linux-xilinx |
< 6.8.0-1017.18 |
6.8.0-1017.18 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-fips |
< 6.8.0-78.78+fips1 |
6.8.0-78.78+fips1 |
| Ubuntu:Pro:Realtime:24.04:LTS | linux-raspi-realtime |
< 6.8.0-2015.16 |
6.8.0-2015.16 |
| Ubuntu:Pro:Realtime:24.04:LTS | linux-realtime |
< 6.8.1-1013.14 |
6.8.1-1013.14 |
| Ubuntu:26.04 | linux-nvidia |
All versions |
— |
| Ubuntu:Nvidia-BlueField:24.04:LTS | linux-bluefield |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:16.04:LTS | linux-fips |
< 4.4.0-1115.122 |
4.4.0-1115.122 |
Original description The description as published by the source.
In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix checks for huge PMDs Patch series "userfaultfd: fix races around pmd_trans_huge() check", v2. The pmd_trans_huge() code in mfill_atomic() is wrong in three different ways depending on kernel version: 1. The pmd_trans_huge() check is racy and can lead to a BUG_ON() (if you hit the right two race windows) - I've tested this in a kernel build with some extra mdelay() calls. See the commit message for a description of the race scenario. On older kernels (before 6.5), I think the same bug can even theoretically lead to accessing transhuge page contents as a page table if you hit the right 5 narrow race windows (I haven't tested this case). 2. As pointed out by Qi Zheng, pmd_trans_huge() is not sufficient for detecting PMDs that don't point to page tables. On older kernels (before 6.5), you'd just have to win a single fairly wide race to hit this. I've tested this on 6.1 stable by racing migration (with a mdelay() patched into try_to_migrate()) against UFFDIO_ZEROPAGE - on my x86 VM, that causes a kernel oops in ptlock_ptr(). 3. On newer kernels (>=6.5), for shmem mappings, khugepaged is allowed to yank page tables out from under us (though I haven't tested that), so I think the BUG_ON() checks in mfill_atomic() are just wrong. I decided to write two separate fixes for these (one fix for bugs 1+2, one fix for bug 3), so that the first fix can be backported…
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- report ubuntu.com
- report cve.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org