Linux Kernel up to 6.11.6 ath10k idr_remove memory leak

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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.11.6. It has been rated as problematic. The impacted element is the function idr_remove of the component ath10k. This manipulation causes memory leak. This vulnerability is registered as CVE-2024-50236. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.11.6 and classified as problematic. Affected by this vulnerability is the function idr_remove of the component ath10k. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: Fix memory leak in management tx In the current logic, memory is allocated for storing the MSDU context during management packet TX but this memory is not being freed during management TX completion. Similar leaks are seen in the management TX cleanup logic. Kmemleak reports this problem as below, unreferenced object 0xffffff80b64ed250 (size 16): comm "kworker/u16:7", pid 148, jiffies 4294687130 (age 714.199s) hex dump (first 16 bytes): 00 2b d8 d8 80 ff ff ff c4 74 e9 fd 07 00 00 00 .+.......t...... backtrace: [] __kmem_cache_alloc_node+0x1e4/0x2d8 [] kmalloc_trace+0x48/0x110 [] ath10k_wmi_tlv_op_gen_mgmt_tx_send+0xd4/0x1d8 [ath10k_core] [] ath10k_mgmt_over_wmi_tx_work+0x134/0x298 [ath10k_core] [] process_scheduled_works+0x1ac/0x400 [] worker_thread+0x208/0x328 [] kthread+0x100/0x1c0 [] ret_from_fork+0x10/0x20 Free the memory during completion and cleanup to fix the leak. Protect the mgmt_pending_tx idr_remove() operation in ath10k_wmi_tlv_op_cleanup_mgmt_tx_send() using ar->data_lock similar to other instances. Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2024-50236 since 10/21/2024. The exploitation appears to be difficult. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 211777 (Debian dsa-5818 : affs-modules-6.1.0-21-4kc-malta-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.19.323, 5.4.285, 5.10.229, 5.15.171, 6.1.116, 6.6.60 or 6.11.7 eliminates this vulnerability. Applying the patch eff818238bed/6fc9af3df6ca/4112450da7d6/705be2dc45c7/6cc23898e6ba/5f5a939759c7/2f6f1e26ac6d/e15d84b3bba1 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (211777) and CERT Bund (WID-SEC-2024-3397). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source eCryptfs
  • Siemens SIMATIC S7
  • SUSE openSUSE
  • RESF Rocky Linux
  • Dell NetWorker
  • Dell Avamar
  • IBM QRadar SIEM

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 211777
Nessus Name: Debian dsa-5818 : affs-modules-6.1.0-21-4kc-malta-di - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.19.323/5.4.285/5.10.229/5.15.171/6.1.116/6.6.60/6.11.7
Patch: eff818238bed/6fc9af3df6ca/4112450da7d6/705be2dc45c7/6cc23898e6ba/5f5a939759c7/2f6f1e26ac6d/e15d84b3bba1

Timelineinfo

10/21/2024 🔍
11/09/2024 +19 days 🔍
11/09/2024 +0 days 🔍
07/16/2025 +249 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-50236 (🔍)
GCVE (CVE): GCVE-0-2024-50236
GCVE (VulDB): GCVE-100-283675
CERT Bund: WID-SEC-2024-3397 - Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Entryinfo

Created: 11/09/2024 12:16
Updated: 07/16/2025 21:28
Changes: 11/09/2024 12:16 (59), 11/14/2024 18:03 (12), 11/25/2024 08:38 (2), 07/16/2025 21:28 (7)
Complete: 🔍
Cache ID: 216::103

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