net: ipip: require CAP_NET_ADMIN in the device netns for changelink
Published Aug 15, 2026
8.8
HIGHCVSS 3.1
EPSS 0.17%
Description
ipip_changelink() operates on at most two netns, dev_net(dev) and the tunnel link netns t->net. They differ once the device is created in or moved to a netns other than the one the request runs in. The rtnl changelink path checks CAP_NET_ADMIN only against dev_net(dev), so a caller privileged there but not in t->net can rewrite a tunnel that lives in t->net.
Gate ipip_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.
Affected products
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- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
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- Version 3.12StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<3.12
- Version 5.10.266StatusunaffectedConstraints<=5.10.*
- Version 5.15.217StatusunaffectedConstraints<=5.15.*
- Version 6.1.178StatusunaffectedConstraints<=6.1.*
- Version 6.12.97StatusunaffectedConstraints<=6.12.*
- Version 6.18.40StatusunaffectedConstraints<=6.18.*
- Version 6.6.145StatusunaffectedConstraints<=6.6.*
- Version 7.1.5StatusunaffectedConstraints<=7.1.*
- Version 7.2StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
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| Linux | Linux | affected |
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No data.
No data.
Red Hat Enterprise Linux 10
kernel
Affected
Red Hat Enterprise Linux 6
kernel
Out of support scope
Red Hat Enterprise Linux 7
kernel
Affected
Red Hat Enterprise Linux 7
kernel-rt
Affected
Red Hat Enterprise Linux 8
kernel
Affected
Red Hat Enterprise Linux 8
kernel-rt
Affected
Red Hat Enterprise Linux 9
kernel
Affected
Red Hat Enterprise Linux 9
kernel-rt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | kernel | Affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (14)
- https://access.redhat.com/security/cve/CVE-2026-72053 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2516430 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-59011 Advisory
- https://git.kernel.org/stable/c/068ad9b85f681755f751ebab82ae98146cec163d
- https://git.kernel.org/stable/c/26544021d5c49cc6ae8a968ccb5033e6363854a4
- https://git.kernel.org/stable/c/68cadc3698c7de88966d306d12ec9c6217da228a
- https://git.kernel.org/stable/c/8211a26324667980a463c069469a818e71207e02
- https://git.kernel.org/stable/c/91571643e554ae89a91942380d5f5361fb7060a2
- https://git.kernel.org/stable/c/983cc4aa7e6f633b34c3ee743771252d7afa9a90
- https://git.kernel.org/stable/c/a7d2642a50282322bc33f34ee7305f2b793df494
- https://git.kernel.org/stable/c/d49edcc65e0a37cc9b386a94415c5d6670ca8b71
- https://lore.kernel.org/linux-cve-announce/2026081516-CVE-2026-72053-14e5@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2026-72053
- https://www.cve.org/CVERecord?id=CVE-2026-72053
Change history (0)
No recorded changes yet.