Linux Kernel up to 6.17.7 on ARM64 net qmi_wwan uninitialized pointer

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4.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.17.7 on ARM64 and classified as critical. This affects the function qmi_wwan of the component net. The manipulation leads to uninitialized pointer. This vulnerability is listed as CVE-2025-68192. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.17.7 on ARM64. This issue affects the function qmi_wwan of the component net. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. Using CWE to declare the problem leads to CWE-824. The product accesses or uses a pointer that has not been initialized. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup Raw IP packets have no MAC header, leaving skb->mac_header uninitialized. This can trigger kernel panics on ARM64 when xfrm or other subsystems access the offset due to strict alignment checks. Initialize the MAC header to prevent such crashes. This can trigger kernel panics on ARM when running IPsec over the qmimux0 interface. Example trace: Internal error: Oops: 000000009600004f [#1] SMP CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.34-gbe78e49cb433 #1 Hardware name: LS1028A RDB Board (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : xfrm_input+0xde8/0x1318 lr : xfrm_input+0x61c/0x1318 sp : ffff800080003b20 Call trace: xfrm_input+0xde8/0x1318 xfrm6_rcv+0x38/0x44 xfrm6_esp_rcv+0x48/0xa8 ip6_protocol_deliver_rcu+0x94/0x4b0 ip6_input_finish+0x44/0x70 ip6_input+0x44/0xc0 ipv6_rcv+0x6c/0x114 __netif_receive_skb_one_core+0x5c/0x8c __netif_receive_skb+0x18/0x60 process_backlog+0x78/0x17c __napi_poll+0x38/0x180 net_rx_action+0x168/0x2f0

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2025-68192 since 12/16/2025. The exploitation is known to be difficult. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 298384 (Oracle Linux 8 : Unbreakable Enterprise kernel (ELSA-2026-50100)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.302, 5.10.247, 5.15.197, 6.1.159, 6.6.117, 6.12.58 or 6.17.8 eliminates this vulnerability. Applying the patch d693c47fb902b988f5752182e4f7fbde5e6dcaf9/0aabccdcec1f4a36f95829ea2263f845bbc77223/4e6b9004f01d0fef5b19778399bc5bf55f8c2d71/bf527b80b80a282ab5bf1540546211fc35e5cd42/dd03780c29f87c26c0e0bb7e0db528c8109461fb/ae811175cea35b03ac6d7c910f43a82a43b9c3b3/8ab3b8f958d861a7f725a5be60769106509fbd69/e120f46768d98151ece8756ebd688b0e43dc8b29 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 (298384) 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

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Uninitialized pointer
CWE: CWE-824 / CWE-908
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: 298384
Nessus Name: Oracle Linux 8 : Unbreakable Enterprise kernel (ELSA-2026-50100)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.302/5.10.247/5.15.197/6.1.159/6.6.117/6.12.58/6.17.8
Patch: d693c47fb902b988f5752182e4f7fbde5e6dcaf9/0aabccdcec1f4a36f95829ea2263f845bbc77223/4e6b9004f01d0fef5b19778399bc5bf55f8c2d71/bf527b80b80a282ab5bf1540546211fc35e5cd42/dd03780c29f87c26c0e0bb7e0db528c8109461fb/ae811175cea35b03ac6d7c910f43a82a43b9c3b3/8ab3b8f958d861a7f725a5be60769106509fbd69/e120f46768d98151ece8756ebd688b0e43dc8b29

Timelineinfo

12/16/2025 Advisory disclosed
12/16/2025 +0 days CVE reserved
12/16/2025 +0 days VulDB entry created
02/21/2026 +67 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-68192 (🔒)
GCVE (CVE): GCVE-0-2025-68192
GCVE (VulDB): GCVE-100-336773
CERT Bund: WID-SEC-2025-2868 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 12/16/2025 16:03
Updated: 02/21/2026 07:33
Changes: 12/16/2025 16:03 (60), 01/19/2026 22:37 (7), 02/03/2026 03:56 (1), 02/09/2026 20:20 (2), 02/21/2026 07:33 (1)
Complete: 🔍
Cache ID: 216::103

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