Linux Kernel up to 6.17.10 sxgbe_rx null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.17.10. Affected by this issue is the function sxgbe_rx. This manipulation causes null pointer dereference. This vulnerability is registered as CVE-2025-68302. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.17.10 and classified as critical. Affected by this vulnerability is the function sxgbe_rx. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: net: sxgbe: fix potential NULL dereference in sxgbe_rx() Currently, when skb is null, the driver prints an error and then dereferences skb on the next line. To fix this, let's add a 'break' after the error message to switch to sxgbe_rx_refill(), which is similar to the approach taken by the other drivers in this particular case, e.g. calxeda with xgmac_rx(). Found during a code review.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-68302 since 12/16/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 296481 (SUSE SLES15 Security Update : kernel (SUSE-SU-2026:0278-1)), 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 ac171c3c755499c9f87fe30b920602255f8b5648/18ef3ad1bb57dcf1a9ee61736039aedccf670b21/46e5332126596a2ca791140feab18ce1fc1a3c86/7fd789d6ea4915034eb6bcb72f6883c8151083e5/45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc/88f46c0be77bfe45830ac33102c75be7c34ac3f3/f5bce28f6b9125502abec4a67d68eabcd24b3b17 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 (296481) and CERT Bund (WID-SEC-2025-2868). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / 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: 296481
Nessus Name: SUSE SLES15 Security Update : kernel (SUSE-SU-2026:0278-1)

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: ac171c3c755499c9f87fe30b920602255f8b5648/18ef3ad1bb57dcf1a9ee61736039aedccf670b21/46e5332126596a2ca791140feab18ce1fc1a3c86/7fd789d6ea4915034eb6bcb72f6883c8151083e5/45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc/88f46c0be77bfe45830ac33102c75be7c34ac3f3/f5bce28f6b9125502abec4a67d68eabcd24b3b17

Timelineinfo

12/16/2025 Advisory disclosed
12/16/2025 +0 days CVE reserved
12/16/2025 +0 days VulDB entry created
02/22/2026 +68 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-68302 (🔒)
GCVE (CVE): GCVE-0-2025-68302
GCVE (VulDB): GCVE-100-336865
CERT Bund: WID-SEC-2025-2868 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 12/16/2025 17:50
Updated: 02/22/2026 07:33
Changes: 12/16/2025 17:50 (59), 01/25/2026 00:12 (2), 02/22/2026 07:33 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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