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This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2025-21875 →
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Vulnerability in linux-hwe-edge

UBUNTU-CVE-2025-21875 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-2025-21875 has been found in linux-hwe-edge.
Risk of unauthorized operations or information disclosure.
What to do: upgrade linux-hwe-edge to 5.15.0-1084.91~20.04.1 or later.
If unsure, ask your IT team or search "linux-hwe-edge UBUNTU-CVE-2025-21875" on the vendor's site.

UBUNTU-CVE-2025-21875 (linux-hwe-edge)
Attack vector: local / no user interaction
Patched: 5.15.0-1084.91~20.04.1 — 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-hwe-edge.

Affected scope

Check the vendor advisory for the affected versions of linux-hwe-edge.

Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

How to fix

Update to 5.15.0-1084.91~20.04.1.

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-hwe-edge' . 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. 1
    Identify exposureidentify
    grep -r 'linux-hwe-edge' . | 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-hwe-edge を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply patchpatch
    Upgrade linux-hwe-edge to 5.15.0-1084.91~20.04.1

    ステージング環境で 5.15.0-1084.91~20.04.1 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. 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

EcosystemPackageAffectedFixed
Ubuntu:16.04:LTS linux-hwe-edge
All versions
—
Ubuntu:18.04:LTS linux-aws-5.0
All versions
—
Ubuntu:18.04:LTS linux-aws-5.3
All versions
—
Ubuntu:18.04:LTS linux-azure
All versions
—
Ubuntu:18.04:LTS linux-azure-5.3
All versions
—
Ubuntu:18.04:LTS linux-azure-edge
All versions
—
Ubuntu:18.04:LTS linux-gcp
All versions
—
Ubuntu:18.04:LTS linux-gcp-5.3
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:18.04:LTS linux-hwe-edge
All versions
—
Ubuntu:18.04:LTS linux-oem
All versions
—
Ubuntu:18.04:LTS linux-oracle-5.0
All versions
—
Ubuntu:18.04:LTS linux-oracle-5.3
All versions
—
Ubuntu:20.04:LTS linux-aws-5.15
< 5.15.0-1084.91~20.04.1
5.15.0-1084.91~20.04.1
Ubuntu:20.04:LTS linux-azure-5.15
< 5.15.0-1089.98~20.04.1
5.15.0-1089.98~20.04.1
Ubuntu:20.04:LTS linux-gcp-5.15
< 5.15.0-1083.92~20.04.1
5.15.0-1083.92~20.04.1
Ubuntu:20.04:LTS linux-ibm-5.15
< 5.15.0-1076.79~20.04.1
5.15.0-1076.79~20.04.1
Ubuntu:20.04:LTS linux-intel-iotg-5.15
< 5.15.0-1079.85~20.04.1
5.15.0-1079.85~20.04.1
Ubuntu:20.04:LTS linux-lowlatency-hwe-5.15
< 5.15.0-140.150~20.04.1
5.15.0-140.150~20.04.1
Ubuntu:20.04:LTS linux-oracle-5.15
< 5.15.0-1081.87~20.04.1
5.15.0-1081.87~20.04.1
Ubuntu:20.04:LTS linux-riscv-5.15
< 5.15.0-1079.83~20.04.1
5.15.0-1079.83~20.04.1
Ubuntu:20.04:LTS linux-aws-5.11
All versions
—
Ubuntu:20.04:LTS linux-aws-5.13
All versions
—
Ubuntu:20.04:LTS linux-aws-5.8
All versions
—
Ubuntu:20.04:LTS linux-azure-5.11
All versions
—
Ubuntu:20.04:LTS linux-azure-5.13
All versions
—
Ubuntu:20.04:LTS linux-azure-5.8
All versions
—
Ubuntu:20.04:LTS linux-azure-fde
All versions
—
Ubuntu:20.04:LTS linux-gcp-5.11
All versions
—
Ubuntu:20.04:LTS linux-gcp-5.13
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
< 5.15.0-142.152~20.04.1
5.15.0-142.152~20.04.1
Ubuntu:20.04:LTS linux-hwe-5.8
All versions
—
Ubuntu:20.04:LTS linux-intel-5.13
All versions
—
Ubuntu:Pro:20.04:LTS linux-nvidia-tegra-5.15
< 5.15.0-1039.39~20.04.1
5.15.0-1039.39~20.04.1
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:20.04:LTS linux-oracle-5.11
All versions
—
Ubuntu:20.04:LTS linux-oracle-5.13
All versions
—
Ubuntu:20.04:LTS linux-oracle-5.8
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:20.04:LTS linux-riscv-5.8
All versions
—
Ubuntu:22.04:LTS linux
< 5.15.0-140.150
5.15.0-140.150
Ubuntu:22.04:LTS linux-allwinner-5.19
All versions
—
Ubuntu:22.04:LTS linux-aws
< 5.15.0-1084.91
5.15.0-1084.91
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
< 6.8.0-1039.41~22.04.1
6.8.0-1039.41~22.04.1
Ubuntu:22.04:LTS linux-azure
< 5.15.0-1089.98
5.15.0-1089.98
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
< 6.8.0-1036.42~22.04.1
6.8.0-1036.42~22.04.1
Ubuntu:22.04:LTS linux-azure-fde
< 5.15.0-1089.98.1
5.15.0-1089.98.1
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
< 5.15.0-1083.92
5.15.0-1083.92
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
< 6.8.0-1040.42~22.04.1
6.8.0-1040.42~22.04.1
Ubuntu:22.04:LTS linux-gke
< 5.15.0-1081.87
5.15.0-1081.87
Ubuntu:22.04:LTS linux-gkeop
< 5.15.0-1066.74
5.15.0-1066.74
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
< 6.8.0-85.85~22.04.1
6.8.0-85.85~22.04.1
Ubuntu:22.04:LTS linux-ibm
< 5.15.0-1076.79
5.15.0-1076.79
Ubuntu:22.04:LTS linux-ibm-6.8
< 6.8.0-1037.37~22.04.1
6.8.0-1037.37~22.04.1
Ubuntu:22.04:LTS linux-intel-iot-realtime
All versions
—
Ubuntu:22.04:LTS linux-intel-iotg
< 5.15.0-1079.85
5.15.0-1079.85
Ubuntu:22.04:LTS linux-kvm
< 5.15.0-1080.85
5.15.0-1080.85
Ubuntu:22.04:LTS linux-lowlatency
< 5.15.0-140.150
5.15.0-140.150
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
< 6.8.0-84.84.1~22.04.1
6.8.0-84.84.1~22.04.1
Ubuntu:22.04:LTS linux-nvidia
< 5.15.0-1078.79
5.15.0-1078.79
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
< 6.8.0-1039.42~22.04.1
6.8.0-1039.42~22.04.1
Ubuntu:22.04:LTS linux-nvidia-tegra
< 5.15.0-1037.37
5.15.0-1037.37
Ubuntu:22.04:LTS linux-nvidia-tegra-igx
< 5.15.0-1026.26
5.15.0-1026.26
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
< 5.15.0-1081.87
5.15.0-1081.87
Ubuntu:22.04:LTS linux-oracle-6.5
All versions
—
Ubuntu:22.04:LTS linux-oracle-6.8
< 6.8.0-1037.38~22.04.1
6.8.0-1037.38~22.04.1
Ubuntu:22.04:LTS linux-raspi
< 5.15.0-1078.81
5.15.0-1078.81
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
< 6.8.0-84.84~22.04.1
6.8.0-84.84~22.04.1
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
< 5.15.0-1050.54
5.15.0-1050.54
Ubuntu:Nvidia-BlueField:22.04:LTS linux-bluefield
< 5.15.0-1066.68
5.15.0-1066.68
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
< 5.15.0-1084.91+fips1
5.15.0-1084.91+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS linux-azure-fips
< 5.15.0-1089.98+fips1
5.15.0-1089.98+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS linux-fips
< 5.15.0-140.150+fips1
5.15.0-140.150+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS linux-gcp-fips
< 5.15.0-1083.92+fips1
5.15.0-1083.92+fips1
Ubuntu:Pro:Realtime:22.04:LTS linux-intel-iot-realtime
< 5.15.0-1077.79
5.15.0-1077.79
Ubuntu:Pro:Realtime:22.04:LTS linux-realtime
< 5.15.0-1084.93
5.15.0-1084.93
Ubuntu:Pro:Realtime:22.04:LTS linux-realtime-6.8
< 6.8.1-1034.35~22.04.1
6.8.1-1034.35~22.04.1
Ubuntu:24.04:LTS linux
< 6.8.0-84.84
6.8.0-84.84
Ubuntu:24.04:LTS linux-aws
< 6.8.0-1039.41
6.8.0-1039.41
Ubuntu:24.04:LTS linux-azure
< 6.8.0-1038.44
6.8.0-1038.44
Ubuntu:24.04:LTS linux-azure-6.11
< 6.11.0-1015.15~24.04.1
6.11.0-1015.15~24.04.1
Ubuntu:24.04:LTS linux-azure-nvidia
< 6.8.0-1025.27
6.8.0-1025.27
Ubuntu:24.04:LTS linux-gcp
< 6.8.0-1040.42
6.8.0-1040.42
Ubuntu:24.04:LTS linux-gcp-6.11
< 6.11.0-1015.15~24.04.1
6.11.0-1015.15~24.04.1
Ubuntu:24.04:LTS linux-gke
< 6.8.0-1036.40
6.8.0-1036.40
Ubuntu:24.04:LTS linux-gkeop
< 6.8.0-1023.25
6.8.0-1023.25
Ubuntu:24.04:LTS linux-hwe-6.11
< 6.11.0-26.26~24.04.1
6.11.0-26.26~24.04.1
Ubuntu:24.04:LTS linux-ibm
< 6.8.0-1037.37
6.8.0-1037.37
Ubuntu:24.04:LTS linux-intel
All versions
—
Ubuntu:24.04:LTS linux-lowlatency
< 6.8.0-84.84.1
6.8.0-84.84.1
Ubuntu:24.04:LTS linux-lowlatency-hwe-6.11
< 6.11.0-1014.15~24.04.1
6.11.0-1014.15~24.04.1
Ubuntu:24.04:LTS linux-nvidia
< 6.8.0-1039.42
6.8.0-1039.42
Ubuntu:24.04:LTS linux-nvidia-6.11
< 6.11.0-1010.10
6.11.0-1010.10
Ubuntu:24.04:LTS linux-nvidia-lowlatency
< 6.8.0-1039.42.1
6.8.0-1039.42.1
Ubuntu:24.04:LTS linux-nvidia-tegra
< 6.8.0-1010.10
6.8.0-1010.10
Ubuntu:24.04:LTS linux-oem-6.11
< 6.11.0-1022.22
6.11.0-1022.22
Ubuntu:24.04:LTS linux-oem-6.8
All versions
—
Ubuntu:24.04:LTS linux-oracle
< 6.8.0-1037.38
6.8.0-1037.38
Ubuntu:24.04:LTS linux-raspi
< 6.8.0-1039.43
6.8.0-1039.43
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
< 6.8.0-1018.19
6.8.0-1018.19
Ubuntu:Pro:FIPS-updates:24.04:LTS linux-aws-fips
< 6.8.0-1039.41+fips1
6.8.0-1039.41+fips1
Ubuntu:Pro:FIPS-updates:24.04:LTS linux-azure-fips
< 6.8.0-1040.46+fips1
6.8.0-1040.46+fips1
Ubuntu:Pro:FIPS-updates:24.04:LTS linux-fips
< 6.8.0-84.84+fips1
6.8.0-84.84+fips1
Ubuntu:Pro:FIPS-updates:24.04:LTS linux-gcp-fips
< 6.8.0-1040.42+fips1
6.8.0-1040.42+fips1
Ubuntu:Pro:Realtime:24.04:LTS linux-raspi-realtime
< 6.8.0-2030.31
6.8.0-2030.31
Ubuntu:Pro:Realtime:24.04:LTS linux-realtime
< 6.8.1-1034.35
6.8.1-1034.35
Ubuntu:26.04 linux-nvidia
All versions
—
Ubuntu:Nvidia-BlueField:24.04:LTS linux-bluefield
All versions
—
Original description The description as published by the source.

In the Linux kernel, the following vulnerability has been resolved: mptcp: always handle address removal under msk socket lock Syzkaller reported a lockdep splat in the PM control path: WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 sock_owned_by_me include/net/sock.h:1711 [inline] WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 msk_owned_by_me net/mptcp/protocol.h:363 [inline] WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 mptcp_pm_nl_addr_send_ack+0x57c/0x610 net/mptcp/pm_netlink.c:788 Modules linked in: CPU: 0 UID: 0 PID: 6693 Comm: syz.0.205 Not tainted 6.14.0-rc2-syzkaller-00303-gad1b832bf1cf #0 Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:sock_owned_by_me include/net/sock.h:1711 [inline] RIP: 0010:msk_owned_by_me net/mptcp/protocol.h:363 [inline] RIP: 0010:mptcp_pm_nl_addr_send_ack+0x57c/0x610 net/mptcp/pm_netlink.c:788 Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 ca 7b d3 f5 eb b9 e8 c3 7b d3 f5 90 0f 0b 90 e9 dd fb ff ff e8 b5 7b d3 f5 90 <0f> 0b 90 e9 3e fb ff ff 44 89 f1 80 e1 07 38 c1 0f 8c eb fb ff ff RSP: 0000:ffffc900034f6f60 EFLAGS: 00010283 RAX: ffffffff8bee3c2b RBX: 0000000000000001 RCX: 0000000000080000 RDX: ffffc90004d42000 RSI: 000000000000a407 RDI: 000000000000a408 RBP: ffffc900034f7030 R08: ffffffff8bee37f6 R09: 0100000000000000 R10: dffffc0000000000 R11: ffffed100bcc62e4 R12: ffff88805e6316e0 R13: ffff88805e630c00 R14: dffffc0000000000 R15: ff…

Source: OSV.dev (Open Source Vulnerabilities) OSV

References

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