Linux Kernel up to 6.17.10 usb f_eem memory leak

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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.17.10. Affected by this vulnerability is the function f_eem of the component usb. This manipulation causes memory leak. This vulnerability appears as CVE-2025-68289. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.17.10. Affected by this vulnerability is the function f_eem of the component usb. 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: usb: gadget: f_eem: Fix memory leak in eem_unwrap The existing code did not handle the failure case of usb_ep_queue in the command path, potentially leading to memory leaks. Improve error handling to free all allocated resources on usb_ep_queue failure. This patch continues to use goto logic for error handling, as the existing error handling is complex and not easily adaptable to auto-cleanup helpers. kmemleak results: unreferenced object 0xffffff895a512300 (size 240): backtrace: slab_post_alloc_hook+0xbc/0x3a4 kmem_cache_alloc+0x1b4/0x358 skb_clone+0x90/0xd8 eem_unwrap+0x1cc/0x36c unreferenced object 0xffffff8a157f4000 (size 256): backtrace: slab_post_alloc_hook+0xbc/0x3a4 __kmem_cache_alloc_node+0x1b4/0x2dc kmalloc_trace+0x48/0x140 dwc3_gadget_ep_alloc_request+0x58/0x11c usb_ep_alloc_request+0x40/0xe4 eem_unwrap+0x204/0x36c unreferenced object 0xffffff8aadbaac00 (size 128): backtrace: slab_post_alloc_hook+0xbc/0x3a4 __kmem_cache_alloc_node+0x1b4/0x2dc __kmalloc+0x64/0x1a8 eem_unwrap+0x218/0x36c unreferenced object 0xffffff89ccef3500 (size 64): backtrace: slab_post_alloc_hook+0xbc/0x3a4 __kmem_cache_alloc_node+0x1b4/0x2dc kmalloc_trace+0x48/0x140 eem_unwrap+0x238/0x36c

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-68289 since 12/16/2025. The exploitation appears to be difficult. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 299303 (Oracle Linux 9 : Unbreakable Enterprise kernel (ELSA-2026-50113)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.247, 5.15.197, 6.1.159, 6.6.119, 6.12.61 or 6.17.11 eliminates this vulnerability. Applying the patch a9985a88b2fc29fbe1657fe8518908e261d6889c/5a1628283cd9dccf1e44acfb74e77504f4dc7472/0ac07e476944a5e4c2b8b087dd167dec248c1bdf/41434488ca714ab15cb2a4d0378418d1be8052d2/e72c963177c708a167a7e17ed6c76320815157cf/0dea2e0069a7e9aa034696f8065945b7be6dd6b7/e4f5ce990818d37930cd9fb0be29eee0553c59d9 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 (299303), EUVD (EUVD-2025-203791) and CERT Bund (WID-SEC-2025-2868). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.6

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

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 299303
Nessus Name: Oracle Linux 9 : Unbreakable Enterprise kernel (ELSA-2026-50113)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.247/5.15.197/6.1.159/6.6.119/6.12.61/6.17.11
Patch: a9985a88b2fc29fbe1657fe8518908e261d6889c/5a1628283cd9dccf1e44acfb74e77504f4dc7472/0ac07e476944a5e4c2b8b087dd167dec248c1bdf/41434488ca714ab15cb2a4d0378418d1be8052d2/e72c963177c708a167a7e17ed6c76320815157cf/0dea2e0069a7e9aa034696f8065945b7be6dd6b7/e4f5ce990818d37930cd9fb0be29eee0553c59d9

Timelineinfo

12/16/2025 Advisory disclosed
12/16/2025 +0 days CVE reserved
12/16/2025 +0 days VulDB entry created
05/24/2026 +159 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-68289 (🔒)
GCVE (CVE): GCVE-0-2025-68289
GCVE (VulDB): GCVE-100-336853
EUVD: 🔒
CERT Bund: WID-SEC-2025-2868 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 12/16/2025 17:48
Updated: 05/24/2026 21:29
Changes: 12/16/2025 17:48 (59), 01/20/2026 07:46 (7), 02/04/2026 07:16 (1), 02/17/2026 20:39 (2), 02/22/2026 07:09 (1), 05/24/2026 21:29 (1)
Complete: 🔍
Cache ID: 216::103

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