This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2025-22124 →
Unrated
Vulnerability in linux
UBUNTU-CVE-2025-22124
First seen on SecPulse
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-2025-22124 has been found in linux.
Risk of unauthorized operations or information disclosure.
What to do: upgrade linux to 6.8.0-1050.53~22.04.1 or later.
If unsure, ask your IT team or search "linux UBUNTU-CVE-2025-22124" on the vendor's site.
UBUNTU-CVE-2025-22124 (linux)
Attack vector: local / no user interaction
Patched: 6.8.0-1050.53~22.04.1 — 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.
What is the problem
A vulnerability (unclassified) exists in linux.
Affected scope
Check the vendor advisory for the affected versions of linux.
Severity
Severity: ?. Risk of unauthorized operations or information disclosure.
How to fix
Update to 6.8.0-1050.53~22.04.1.
Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'linux' . 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' . | 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 to 6.8.0-1050.53~22.04.1ステージング環境で 6.8.0-1050.53~22.04.1 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 |
All versions |
— |
| Ubuntu:Pro:14.04:LTS | linux-aws |
All versions |
— |
| Ubuntu:Pro:14.04:LTS | linux-azure |
All versions |
— |
| Ubuntu:Pro:14.04:LTS | linux-lts-xenial |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-aws |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-aws-hwe |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-azure |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-gcp |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-hwe |
All versions |
— |
| Ubuntu:16.04:LTS | linux-hwe-edge |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-kvm |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-oracle |
All versions |
— |
| Ubuntu:Pro:FIPS:16.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-aws |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-azure |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-azure-4.15 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-azure-5.3 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-azure-5.4 |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-gcp-5.3 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-gcp-5.4 |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-hwe-edge |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-ibm-5.4 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-kvm |
All versions |
— |
| Ubuntu:18.04:LTS | linux-oem |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-oracle |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-raspi-5.4 |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-aws-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-azure-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-gcp-fips |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-aws |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-aws-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-azure |
All versions |
— |
| 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 |
All versions |
— |
| 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-azure-fde-5.15 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-bluefield |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-gcp |
All versions |
— |
| 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 |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-hwe-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-ibm |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-ibm-5.15 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-intel-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-intel-iotg-5.15 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-iot |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-kvm |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-lowlatency-hwe-5.15 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-nvidia-tegra-5.15 |
All versions |
— |
| 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 |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-oracle-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-raspi |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-riscv-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-xilinx-zynqmp |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-aws-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-azure-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-gcp-fips |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws |
All versions |
— |
| 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 |
< 6.8.0-1050.53~22.04.1 |
6.8.0-1050.53~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure |
All versions |
— |
| 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 |
< 6.8.0-1051.57~22.04.1 |
6.8.0-1051.57~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure-fde |
All versions |
— |
| 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-azure-fde-6.8 |
< 6.8.0-1058.65~22.04.1 |
6.8.0-1058.65~22.04.1 |
| Ubuntu:22.04:LTS | linux-gcp |
All versions |
— |
| 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 |
< 6.8.0-1052.55~22.04.1 |
6.8.0-1052.55~22.04.1 |
| Ubuntu:22.04:LTS | linux-gke |
All versions |
— |
| Ubuntu:22.04:LTS | linux-gkeop |
All versions |
— |
| 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 |
< 6.8.0-106.106~22.04.1 |
6.8.0-106.106~22.04.1 |
| Ubuntu:22.04:LTS | linux-ibm |
All versions |
— |
| Ubuntu:22.04:LTS | linux-ibm-6.8 |
< 6.8.0-1049.49~22.04.1 |
6.8.0-1049.49~22.04.1 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime |
All versions |
— |
| Ubuntu:22.04:LTS | linux-intel-iotg |
All versions |
— |
| Ubuntu:22.04:LTS | linux-kvm |
All versions |
— |
| Ubuntu:22.04:LTS | linux-lowlatency |
All versions |
— |
| 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 |
< 6.8.0-106.106.1~22.04.1 |
6.8.0-106.106.1~22.04.1 |
| Ubuntu:22.04:LTS | linux-nvidia |
All versions |
— |
| 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 |
< 6.8.0-1049.52~22.04.1 |
6.8.0-1049.52~22.04.1 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra |
All versions |
— |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oracle-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oracle-6.8 |
< 6.8.0-1047.48~22.04.1 |
6.8.0-1047.48~22.04.1 |
| Ubuntu:22.04:LTS | linux-raspi |
All versions |
— |
| 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 |
< 6.8.0-106.106~22.04.1 |
6.8.0-106.106~22.04.1 |
| 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 |
All versions |
— |
| Ubuntu:Nvidia-BlueField:22.04:LTS | linux-bluefield |
All versions |
— |
| 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 |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-azure-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-gcp-fips |
All versions |
— |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-intel-iot-realtime |
All versions |
— |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-realtime |
All versions |
— |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-realtime-6.8 |
< 6.8.1-1045.46~22.04.1 |
6.8.1-1045.46~22.04.1 |
| Ubuntu:24.04:LTS | linux |
< 6.8.0-106.106 |
6.8.0-106.106 |
| Ubuntu:24.04:LTS | linux-aws |
< 6.8.0-1050.53 |
6.8.0-1050.53 |
| Ubuntu:24.04:LTS | linux-azure |
< 6.8.0-1051.57 |
6.8.0-1051.57 |
| Ubuntu:24.04:LTS | linux-azure-6.11 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-azure-fde |
< 6.8.0-1058.65 |
6.8.0-1058.65 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.17 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-azure-nvidia |
All versions |
— |
| Ubuntu:24.04:LTS | linux-gcp |
< 6.8.0-1052.55 |
6.8.0-1052.55 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-gke |
< 6.8.0-1048.53 |
6.8.0-1048.53 |
| Ubuntu:24.04:LTS | linux-gkeop |
< 6.8.0-1035.38 |
6.8.0-1035.38 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-ibm |
< 6.8.0-1049.49 |
6.8.0-1049.49 |
| Ubuntu:24.04:LTS | linux-intel |
All versions |
— |
| Ubuntu:24.04:LTS | linux-lowlatency |
< 6.8.0-106.106.1 |
6.8.0-106.106.1 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-nvidia |
< 6.8.0-1049.52 |
6.8.0-1049.52 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency |
< 6.8.0-1049.52.1 |
6.8.0-1049.52.1 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra |
< 6.8.0-1020.20 |
6.8.0-1020.20 |
| Ubuntu:24.04:LTS | linux-oem-6.11 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-oem-6.8 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-oracle |
< 6.8.0-1047.48 |
6.8.0-1047.48 |
| Ubuntu:24.04:LTS | linux-raspi |
< 6.8.0-1050.54 |
6.8.0-1050.54 |
| Ubuntu:24.04:LTS | linux-raspi-realtime |
All versions |
— |
| Ubuntu:24.04:LTS | linux-realtime |
All versions |
— |
| Ubuntu:24.04:LTS | linux-riscv |
All versions |
— |
| Ubuntu:24.04:LTS | linux-xilinx |
< 6.8.0-1028.29 |
6.8.0-1028.29 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-aws-fips |
< 6.8.0-1050.53+fips1 |
6.8.0-1050.53+fips1 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-azure-fips |
< 6.8.0-1052.58+fips1 |
6.8.0-1052.58+fips1 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-fips |
< 6.8.0-106.106+fips1 |
6.8.0-106.106+fips1 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-gcp-fips |
< 6.8.0-1052.55+fips1 |
6.8.0-1052.55+fips1 |
| Ubuntu:Pro:Realtime:24.04:LTS | linux-raspi-realtime |
< 6.8.0-2040.41 |
6.8.0-2040.41 |
| Ubuntu:Pro:Realtime:24.04:LTS | linux-realtime |
< 6.8.1-1045.46 |
6.8.1-1045.46 |
| Ubuntu:25.10 | linux-azure-fde |
All versions |
— |
| Ubuntu:26.04 | linux-nvidia |
All versions |
— |
| Ubuntu:Nvidia-BlueField:24.04:LTS | linux-bluefield |
< 6.8.0-1017.21 |
6.8.0-1017.21 |
Original description The description as published by the source.
In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: fix wrong bitmap_limit for clustermd when write sb In clustermd, separate write-intent-bitmaps are used for each cluster node: 0 4k 8k 12k ------------------------------------------------------------------- | idle | md super | bm super [0] + bits | | bm bits[0, contd] | bm super[1] + bits | bm bits[1, contd] | | bm super[2] + bits | bm bits [2, contd] | bm super[3] + bits | | bm bits [3, contd] | | | So in node 1, pg_index in __write_sb_page() could equal to bitmap->storage.file_pages. Then bitmap_limit will be calculated to 0. md_super_write() will be called with 0 size. That means the first 4k sb area of node 1 will never be updated through filemap_write_page(). This bug causes hang of mdadm/clustermd_tests/01r1_Grow_resize. Here use (pg_index % bitmap->storage.file_pages) to make calculation of bitmap_limit correct.
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
- report ubuntu.com
- report cve.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org