Vulnerability in Kernel (CVE-2024-56543)

Summary

Vulnerability in Kernel (CVE-2024-56543). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 6.6.64, 6.11.11, 6.12.2 or later.

Original description

The description as published by the source.

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

wifi: ath12k: Skip Rx TID cleanup for self peer

During peer create, dp setup for the peer is done where Rx TID is
updated for all the TIDs. Peer object for self peer will not go through
dp setup.

When core halts, dp cleanup is done for all the peers. While cleanup,
rx_tid::ab is accessed which causes below stack trace for self peer.

WARNING: CPU: 6 PID: 12297 at drivers/net/wireless/ath/ath12k/dp_rx.c:851
Call Trace:
__warn+0x7b/0x1a0
ath12k_dp_rx_frags_cleanup+0xd2/0xe0 [ath12k]
report_bug+0x10b/0x200
handle_bug+0x3f/0x70
exc_invalid_op+0x13/0x60
asm_exc_invalid_op+0x16/0x20
ath12k_dp_rx_frags_cleanup+0xd2/0xe0 [ath12k]
ath12k_dp_rx_frags_cleanup+0xca/0xe0 [ath12k]
ath12k_dp_rx_peer_tid_cleanup+0x39/0xa0 [ath12k]
ath12k_mac_peer_cleanup_all+0x61/0x100 [ath12k]
ath12k_core_halt+0x3b/0x100 [ath12k]
ath12k_core_reset+0x494/0x4c0 [ath12k]

sta object in peer will be updated when remote peer is created. Hence
use peer::sta to detect the self peer and skip the cleanup.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

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-2024-56543 has been found in Kernel.
Risk of unauthorized operations or information disclosure.
What to do: upgrade Kernel to 6.6.64, 6.11.11, 6.12.2 or later.
If unsure, ask your IT team or search "Kernel CVE-2024-56543" on the vendor's site.

CVE-2024-56543 (Kernel)
Patched: 6.6.64, 6.11.11, 6.12.2 — 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 6.6.64, 6.11.11, 6.12.2.

🛡️ 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 6.6.64, 6.11.11, 6.12.2
```
ステージング環境で 6.6.64, 6.11.11, 6.12.2 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":"6.3.0"},{"fixed":"6.6.64"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.11.11"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.12.0"},{"fixed":"6.12.2"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

BellSoft Alpaquita BELL-CVE-2024-56543 linux-lts Fixed in: 6.12.41-r0
Debian DEBIAN-CVE-2024-56543 linux Fixed in: 6.12.3-1
Ubuntu UBUNTU-CVE-2024-56543 linux-hwe-edge