CVE-2026-80646

ipv6: guard against possible NULL deref in __in6_dev_stats_get()

State: Published
Severity: 7.5 High
Published: Aug 28, 2026
Updated: Oct 16, 2026
Reserved: Aug 26, 2026

Read the record on cve.org

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before a23f2c68c6635e41404f189f8f7ae910738cebdbAffected e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before e14db43677946bf2095febd294bb3c13ab375ab7Affected e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before 1a4adfbeb47a212a64539137411f1ca168474d33Affected e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before 1e3db30a88815bae6e9d5db6f64ac735e615a07eAffected e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before 952426a83ca75cea25c09d58944abafaa3ebd242Affected e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before 0db1949084e85a72d174a7dea3259b94fe5a9305Affected e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before fc920c0659cdea5afd8721c1155a51564859e075Affected e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before 507541c2a8eeb76c02bd2511958f73a8cfa3e1bcAffected a24963500a4ec921ce9c2597e0a584e44513afaeAffected 4.19.291 to before 4.20Affected
LinuxLinux	5.2Affected before 5.2Not affected 5.10.261 through 5.10.Not affected 5.15.212 through 5.15.Not affected 6.1.178 through 6.1.Not affected 6.6.145 through 6.6.Not affected 6.12.97 through 6.12.Not affected 6.18.40 through 6.18.Not affected 7.1.5 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before a23f2c68c6635e41404f189f8f7ae910738cebdbAffected
e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before e14db43677946bf2095febd294bb3c13ab375ab7Affected
e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before 1a4adfbeb47a212a64539137411f1ca168474d33Affected
e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before 1e3db30a88815bae6e9d5db6f64ac735e615a07eAffected
e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before 952426a83ca75cea25c09d58944abafaa3ebd242Affected
e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before 0db1949084e85a72d174a7dea3259b94fe5a9305Affected
e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before fc920c0659cdea5afd8721c1155a51564859e075Affected
e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f to before 507541c2a8eeb76c02bd2511958f73a8cfa3e1bcAffected
a24963500a4ec921ce9c2597e0a584e44513afaeAffected
4.19.291 to before 4.20Affected

LinuxLinux

5.2Affected
before 5.2Not affected
5.10.261 through 5.10.*Not affected
5.15.212 through 5.15.*Not affected
6.1.178 through 6.1.*Not affected
6.6.145 through 6.6.*Not affected
6.12.97 through 6.12.*Not affected
6.18.40 through 6.18.*Not affected
7.1.5 through 7.1.*Not affected
7.2 and laterNot affected

References

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