Linux Kernel up to 5.16-rc6 ef100_nic.c ef100_update_stats 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 problematic has been reported in Linux Kernel up to 5.16-rc6. The impacted element is the function ef100_update_stats of the file drivers/net/ethernet/sfc/ef100_nic.c. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2022-3106. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 5.16-rc6 (Operating System). This issue affects the function ef100_update_stats of the file drivers/net/ethernet/sfc/ef100_nic.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

An issue was discovered in the Linux kernel through 5.16-rc6. ef100_update_stats in drivers/net/ethernet/sfc/ef100_nic.c lacks check of the return value of kmalloc().

The weakness was shared 12/15/2022. The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2022-3106 since 09/02/2022. Technical details are known, but no exploit is available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-42533). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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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: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

09/02/2022 🔍
12/15/2022 +104 days 🔍
12/15/2022 +0 days 🔍
07/09/2026 +1302 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2022-3106 (🔍)
GCVE (CVE): GCVE-0-2022-3106
GCVE (VulDB): GCVE-100-215849
EUVD: 🔍

Entryinfo

Created: 12/15/2022 01:08
Updated: 07/09/2026 09:54
Changes: 12/15/2022 01:08 (42), 01/12/2023 20:02 (10), 04/22/2025 09:33 (16), 07/09/2026 09:54 (1)
Complete: 🔍
Cache ID: 216::103

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

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