Not yet scoredPublished Oct 6, 2026

CVE-2026-98233net/packet: clear RX owner on VNET header error

Updated under an hour ago (Oct 26, 2026, 8:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before bb10a0084c03a94364aeec542beddc5d49b59f59; from 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before b8c0cb3069058c2d67b5c7c833b2833381ecffdc; 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 builds before 2daa618e7ff19eefcbda281bc4c5998c4140f9cf; 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 builds before 23cd30498891d29a69ec9b75bd92f8a0f21f1342; 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 builds before 49a48a5aaf85fe69d2dc3fb334b4854fadf44e39; from 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before 805edbdcb8681da5f7ee43b3c3c809f7a8c31208; from 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before 693209a237fc548791cf402441db8b68d1da7d38; 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 builds before 33ff111d7ba3beb86e28938d6382bb5beabd865a; and 8 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/bb10a0084c03a94364aeec542beddc5d49b59f59
https://git.kernel.org/stable/c/b8c0cb3069058c2d67b5c7c833b2833381ecffdc
https://git.kernel.org/stable/c/2daa618e7ff19eefcbda281bc4c5998c4140f9cf
https://git.kernel.org/stable/c/23cd30498891d29a69ec9b75bd92f8a0f21f1342
https://git.kernel.org/stable/c/49a48a5aaf85fe69d2dc3fb334b4854fadf44e39
https://git.kernel.org/stable/c/805edbdcb8681da5f7ee43b3c3c809f7a8c31208
https://git.kernel.org/stable/c/693209a237fc548791cf402441db8b68d1da7d38
https://git.kernel.org/stable/c/33ff111d7ba3beb86e28938d6382bb5beabd865a

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.