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

net/packet: clear RX owner on VNET header error

Commit 61fad6816fc1 ("net/packet: tpacket_rcv: avoid a producer race
condition") added rx_owner_map and made tpacket_rcv() claim a V1 or V2
ring slot before converting the virtio-net header. If the conversion
fails, the drop path leaves the slot claimed.

With a one-frame TPACKET_V2 ring, an unsupported UDP GSO packet leaves
the only slot unavailable, so the ring also drops the next valid packet.

Clear the ownership bit on this error path. TPACKET_V3 already clears
its block state here.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0022.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/23cd30498891d29a69ec9b75bd92f8a0f21f1342 cve-icon cve-icon
https://git.kernel.org/stable/c/2daa618e7ff19eefcbda281bc4c5998c4140f9cf cve-icon cve-icon
https://git.kernel.org/stable/c/33ff111d7ba3beb86e28938d6382bb5beabd865a cve-icon cve-icon
https://git.kernel.org/stable/c/49a48a5aaf85fe69d2dc3fb334b4854fadf44e39 cve-icon cve-icon
https://git.kernel.org/stable/c/693209a237fc548791cf402441db8b68d1da7d38 cve-icon cve-icon
https://git.kernel.org/stable/c/805edbdcb8681da5f7ee43b3c3c809f7a8c31208 cve-icon cve-icon
https://git.kernel.org/stable/c/b8c0cb3069058c2d67b5c7c833b2833381ecffdc cve-icon cve-icon
https://git.kernel.org/stable/c/bb10a0084c03a94364aeec542beddc5d49b59f59 cve-icon cve-icon
History

Tue, 06 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-362

Tue, 06 Oct 2026 09:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: net/packet: clear RX owner on VNET header error Commit 61fad6816fc1 ("net/packet: tpacket_rcv: avoid a producer race condition") added rx_owner_map and made tpacket_rcv() claim a V1 or V2 ring slot before converting the virtio-net header. If the conversion fails, the drop path leaves the slot claimed. With a one-frame TPACKET_V2 ring, an unsupported UDP GSO packet leaves the only slot unavailable, so the ring also drops the next valid packet. Clear the ownership bit on this error path. TPACKET_V3 already clears its block state here.
Title net/packet: clear RX owner on VNET header error
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-06T08:45:06.533Z

Reserved: 2026-09-25T10:25:14.328Z

Link: CVE-2026-98233

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-06T09:18:10.857

Modified: 2026-10-06T09:18:10.857

Link: CVE-2026-98233

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-06T12:00:15Z

Weaknesses