CVE-2026-98233net/packet: clear RX owner on VNET header error
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
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
- 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.