Vulnerability in Kernel (CVE-2024-26896)

Summary

Vulnerability in Kernel (CVE-2024-26896). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 6.1.83, 6.6.23, 6.7.11, 6.8.2 or later.

Original description

The description as published by the source.

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

wifi: wfx: fix memory leak when starting AP

Kmemleak reported this error:

unreferenced object 0xd73d1180 (size 184):
  comm "wpa_supplicant", pid 1559, jiffies 13006305 (age 964.245s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 1e 00 01 00 00 00 00 00  ................
  backtrace:
    [<5ca11420>] kmem_cache_alloc+0x20c/0x5ac
    [<127bdd74>] __alloc_skb+0x144/0x170
    [] __netdev_alloc_skb+0x50/0x180
    [<0f9fa1d5>] __ieee80211_beacon_get+0x290/0x4d4 [mac80211]
    [<7accd02d>] ieee80211_beacon_get_tim+0x54/0x18c [mac80211]
    [<41e25cc3>] wfx_start_ap+0xc8/0x234 [wfx]
    [<93a70356>] ieee80211_start_ap+0x404/0x6b4 [mac80211]
    [] nl80211_start_ap+0x76c/0x9e0 [cfg80211]
    [<47bd8b68>] genl_rcv_msg+0x198/0x378
    [<453ef796>] netlink_rcv_skb+0xd0/0x130
    [<6b7c977a>] genl_rcv+0x34/0x44
    [<66b2d04d>] netlink_unicast+0x1b4/0x258
    [] netlink_sendmsg+0x1e8/0x428
    [] ____sys_sendmsg+0x1e0/0x274
    [] ___sys_sendmsg+0x80/0xb4
    [<69954f45>] __sys_sendmsg+0x64/0xa8
unreferenced object 0xce087000 (size 1024):
  comm "wpa_supplicant", pid 1559, jiffies 13006305 (age 964.246s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    10 00 07 40 00 00 00 00 00…

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-2024-26896 has been found in Kernel.
Risk of unauthorized operations or information disclosure.
What to do: upgrade Kernel to 6.1.83, 6.6.23, 6.7.11, 6.8.2 or later.
If unsure, ask your IT team or search "Kernel CVE-2024-26896" on the vendor's site.

CVE-2024-26896 (Kernel)
Patched: 6.1.83, 6.6.23, 6.7.11, 6.8.2 — 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 6.1.83, 6.6.23, 6.7.11, 6.8.2.

🛡️ 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 6.1.83, 6.6.23, 6.7.11, 6.8.2
```
ステージング環境で 6.1.83, 6.6.23, 6.7.11, 6.8.2 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":"5.10.0"},{"fixed":"6.1.83"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.23"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.7.11"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.8.2"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

Debian DEBIAN-CVE-2024-26896 linux
Ubuntu UBUNTU-CVE-2024-26896 linux-hwe-edge