Vulnerability in Kernel (CVE-2025-38418)

Summary

Vulnerability in Kernel (CVE-2025-38418). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4 or later.

Original description

The description as published by the source.

In the Linux kernel, the following vulnerability has been resolved:

remoteproc: core: Release rproc->clean_table after rproc_attach() fails

When rproc->state = RPROC_DETACHED is attached to remote processor
through rproc_attach(), if rproc_handle_resources() returns failure,
then the clean table should be released, otherwise the following
memory leak will occur.

unreferenced object 0xffff000086a99800 (size 1024):
comm "kworker/u12:3", pid 59, jiffies 4294893670 (age 121.140s)
hex dump (first 32 bytes):
00 00 00 00 00 80 00 00 00 00 00 00 00 00 10 00 ............
00 00 00 00 00 00 08 00 00 00 00 00 00 00 00 00 ............
backtrace:
[<000000008bbe4ca8>] slab_post_alloc_hook+0x98/0x3fc
[<000000003b8a272b>] __kmem_cache_alloc_node+0x13c/0x230
[<000000007a507c51>] __kmalloc_node_track_caller+0x5c/0x260
[<0000000037818dae>] kmemdup+0x34/0x60
[<00000000610f7f57>] rproc_boot+0x35c/0x56c
[<0000000065f8871a>] rproc_add+0x124/0x17c
[<00000000497416ee>] imx_rproc_probe+0x4ec/0x5d4
[<000000003bcaa37d>] platform_probe+0x68/0xd8
[<00000000771577f9>] really_probe+0x110/0x27c
[<00000000531fea59>] __driver_probe_device+0x78/0x12c
[<0000000080036a04>] driver_probe_device+0x3c/0x118
[<000000007e0bddcb>] __device_attach_driver+0xb8/0xf8
[<000000000cf1fa33>] bus_for_each_drv+0x84/0xe4
[<000000001a53b53e>] __device_attach+0xfc/0x18c
[<00000000d1a2a32c>] device_initial_probe+0x14/0x20
[<00000000d8f8b7ae>] bus_probe_device+0xb0/0xb4
unreferenced object 0xffff0000864c9690 (size 1…

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

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 CVE-2025-38418 has been found in Kernel.
Risk of unauthorized operations or information disclosure.
What to do: upgrade Kernel to 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4 or later.
If unsure, ask your IT team or search "Kernel CVE-2025-38418" on the vendor's site.

CVE-2025-38418 (Kernel)
Patched: 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4 — 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 Kernel.

📍 Affected scope

Check the vendor advisory for the affected versions of Kernel.

🔥 Severity

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

🔧 How to fix

Update to 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4.

🛡️ 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 'Kernel' . 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 exposure identify
```
grep -r 'Kernel' . | 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 Kernel 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 patch patch
```
Upgrade Kernel to 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4
```
ステージング環境で 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4 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 verification verify
```
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

Linux Kernel

[{"type":"ECOSYSTEM","events":[{"introduced":"5.13.0"},{"fixed":"5.15.186"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.142"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.95"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.35"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.15.4"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

BellSoft Alpaquita BELL-CVE-2025-38418 linux-lts Fixed in: 6.1.143-r1
Debian DEBIAN-CVE-2025-38418 linux Fixed in: 6.1.147-1
Ubuntu UBUNTU-CVE-2025-38418 linux-hwe-edge