Vulnerability in Kernel (CVE-2025-40152)

Summary

Vulnerability in Kernel (CVE-2025-40152). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 6.17.3 or later.

Original description

The description as published by the source.

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

drm/msm: Fix bootup splat with separate_gpu_drm modparam

The drm_gem_for_each_gpuvm_bo() call from lookup_vma() accesses
drm_gem_obj.gpuva.list, which is not initialized when the drm driver
does not support DRIVER_GEM_GPUVA feature. Enable it for msm_kms
drm driver to fix the splat seen when msm.separate_gpu_drm=1 modparam
is set:

[ 9.506020] Unable to handle kernel paging request at virtual address fffffffffffffff0
[ 9.523160] Mem abort info:
[ 9.523161] ESR = 0x0000000096000006
[ 9.523163] EC = 0x25: DABT (current EL), IL = 32 bits
[ 9.523165] SET = 0, FnV = 0
[ 9.523166] EA = 0, S1PTW = 0
[ 9.523167] FSC = 0x06: level 2 translation fault
[ 9.523169] Data abort info:
[ 9.523170] ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000
[ 9.523171] CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[ 9.523172] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[ 9.523174] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000ad370f000
[ 9.523176] [fffffffffffffff0] pgd=0000000000000000, p4d=0000000ad4787403, pud=0000000ad4788403, pmd=0000000000000000
[ 9.523184] Internal error: Oops: 0000000096000006 [#1] SMP
[ 9.592968] CPU: 9 UID: 0 PID: 448 Comm: (udev-worker) Not tainted 6.17.0-rc4-assorted-fix-00005-g0e9bb53a2282-dirty #3 PREEMPT
[ 9.592970] Hardware name: Qualcomm CRD, BIOS 6.0.240718.BOOT.MXF.2.4-00515-HAMOA-1 07/18/2024
[ 9.592971] pstate: a1400005 (NzCv daif +PAN…

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-2025-40152 has been found in Kernel.
Risk of unauthorized operations or information disclosure.
What to do: upgrade Kernel to 6.17.3 or later.
If unsure, ask your IT team or search "Kernel CVE-2025-40152" on the vendor's site.

CVE-2025-40152 (Kernel)
Patched: 6.17.3 — 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 6.17.3.

🛡️ 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 6.17.3
```
ステージング環境で 6.17.3 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":"6.17.0"},{"fixed":"6.17.3"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

BellSoft Alpaquita BELL-CVE-2025-40152 linux-lts Fixed in: 6.18.35-r1
Ubuntu UBUNTU-CVE-2025-40152 linux-hwe-edge