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CVE-2026-98569

ip_gre: Reject enabling collect metadata through changelink

In the Linux kernel, the following vulnerability has been resolved:

ip_gre: Reject enabling collect metadata through changelink

ipgre_netlink_parms() can enable collect_md on an existing GRE, GRETAP
or ERSPAN device. Unlike newlink, changelink does not enforce metadata
tunnel uniqueness. Converting a non-metadata device can therefore
replace the metadata receive entry for another device of the same type
in the same netns. Deleting either device then clears the shared entry,
breaking metadata receive lookup for the surviving device.

If parameter validation fails after collect_md is set, deleting the
modified device can also clear an entry it never owned.

Reject enabling metadata mode in both changelink callbacks before any
encapsulation or tunnel parameters are modified. Allow requests that
repeat the metadata attribute on an existing metadata device.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 2e15ea390e6f4466655066d97e22ec66870a042c
Version < c80315da84998b69b8829785a174b0bf72a81992
Status affected
Version 2e15ea390e6f4466655066d97e22ec66870a042c
Version < cff8b520312e750ad38967c30128e1534cbf9484
Status affected
Version 2e15ea390e6f4466655066d97e22ec66870a042c
Version < 1dc759571f3df14891175fc52527f7624ba01322
Status affected
Version 2e15ea390e6f4466655066d97e22ec66870a042c
Version < da2e0cfbb620b199927a1e5b93b7cfde32083c7d
Status affected
Version 2e15ea390e6f4466655066d97e22ec66870a042c
Version < 2e54d53b65e296b4b4bdc2cdd3b2b58dfa8d8c5c
Status affected
Version 2e15ea390e6f4466655066d97e22ec66870a042c
Version < bdd41b96e814300c66222cf4e47ecb8aef995656
Status affected
Version 2e15ea390e6f4466655066d97e22ec66870a042c
Version < 63c5e48d6f7f5722a48f63e13e961dc5302894ed
Status affected
Version 2e15ea390e6f4466655066d97e22ec66870a042c
Version < a3f315be9d30eeb6938d11fa17fd4b32d52f7c42
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 4.3
Status affected
Version 0
Version < 4.3
Status unaffected
Version <= 5.10.*
Version 5.10.271
Status unaffected
Version <= 5.15.*
Version 5.15.222
Status unaffected
Version <= 6.1.*
Version 6.1.189
Status unaffected
Version <= 6.6.*
Version 6.6.158
Status unaffected
Version <= 6.12.*
Version 6.12.112
Status unaffected
Version <= 6.18.*
Version 6.18.55
Status unaffected
Version <= 7.2.*
Version 7.2.9
Status unaffected
Version <= *
Version 7.3
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.106
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/c80315da84998b69b8829785a174b0bf72a81992
https://git.kernel.org/stable/c/cff8b520312e750ad38967c30128e1534cbf9484
https://git.kernel.org/stable/c/1dc759571f3df14891175fc52527f7624ba01322
https://git.kernel.org/stable/c/da2e0cfbb620b199927a1e5b93b7cfde32083c7d
https://git.kernel.org/stable/c/2e54d53b65e296b4b4bdc2cdd3b2b58dfa8d8c5c
https://git.kernel.org/stable/c/bdd41b96e814300c66222cf4e47ecb8aef995656
https://git.kernel.org/stable/c/63c5e48d6f7f5722a48f63e13e961dc5302894ed
https://git.kernel.org/stable/c/a3f315be9d30eeb6938d11fa17fd4b32d52f7c42