Linux Kernel up to 7.1.4 ipv6 __in6_dev_stats_get null pointer dereference

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7.0	$0-$5k	0.34

Summaryinfo

A vulnerability was found in Linux Kernel up to 7.1.4. It has been classified as critical. Affected by this vulnerability is the function __in6_dev_stats_get of the component ipv6. This manipulation causes null pointer dereference. This vulnerability appears as CVE-2026-80646. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.1.4. It has been declared as critical. Affected by this vulnerability is the function __in6_dev_stats_get of the component ipv6. 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 confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ipv6: guard against possible NULL deref in __in6_dev_stats_get() dev_get_by_index_rcu() could return NULL if the original physical device is unregistered. Found by Sashiko.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2026-80646 since 08/26/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/28/2026).

Upgrading to version 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, 6.18.40 or 7.1.5 eliminates this vulnerability. Applying the patch a23f2c68c6635e41404f189f8f7ae910738cebdb/e14db43677946bf2095febd294bb3c13ab375ab7/1a4adfbeb47a212a64539137411f1ca168474d33/1e3db30a88815bae6e9d5db6f64ac735e615a07e/952426a83ca75cea25c09d58944abafaa3ebd242/0db1949084e85a72d174a7dea3259b94fe5a9305/fc920c0659cdea5afd8721c1155a51564859e075/507541c2a8eeb76c02bd2511958f73a8cfa3e1bc is able to eliminate this problem.

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Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.10.260
• 5.15.211
• 6.1.177
• 6.6.144
• 6.12.0
• 6.12.1
• 6.12.2
• 6.12.3
• 6.12.4
• 6.12.5
• 6.12.6
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• 6.12.86
• 6.12.87
• 6.12.88
• 6.12.89
• 6.12.90
• 6.12.91
• 6.12.92
• 6.12.93
• 6.12.94
• 6.12.95
• 6.12.96
• 6.18.0
• 6.18.1
• 6.18.2
• 6.18.3
• 6.18.4
• 6.18.5
• 6.18.6
• 6.18.7
• 6.18.8
• 6.18.9
• 6.18.10
• 6.18.11
• 6.18.12
• 6.18.13
• 6.18.14
• 6.18.15
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• 6.18.18
• 6.18.19
• 6.18.20
• 6.18.21
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• 6.18.25
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• 6.18.27
• 6.18.28
• 6.18.29
• 6.18.30
• 6.18.31
• 6.18.32
• 6.18.33
• 6.18.34
• 6.18.35
• 6.18.36
• 6.18.37
• 6.18.38
• 6.18.39
• 7.1.0
• 7.1.1
• 7.1.2
• 7.1.3
• 7.1.4

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.261/5.15.212/6.1.178/6.6.145/6.12.97/6.18.40/7.1.5
Patch: a23f2c68c6635e41404f189f8f7ae910738cebdb/e14db43677946bf2095febd294bb3c13ab375ab7/1a4adfbeb47a212a64539137411f1ca168474d33/1e3db30a88815bae6e9d5db6f64ac735e615a07e/952426a83ca75cea25c09d58944abafaa3ebd242/0db1949084e85a72d174a7dea3259b94fe5a9305/fc920c0659cdea5afd8721c1155a51564859e075/507541c2a8eeb76c02bd2511958f73a8cfa3e1bc

Timelineinfo

08/26/2026 CVE reserved
08/28/2026 +2 days Advisory disclosed
08/28/2026 +0 days VulDB entry created
08/28/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-80646 (🔒)
GCVE (CVE): GCVE-0-2026-80646
GCVE (VulDB): GCVE-100-396583

Entryinfo

Created: 08/28/2026 10:34
Changes: 08/28/2026 10:34 (59)
Complete: 🔍
Cache ID: 216::103

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Discussion

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