CVE-2026-98233
net/packet: clear RX owner on VNET header error
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 6, 2026 |
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Affected Versions
Linux / Linux
61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < bb10a0084c03a94364aeec542beddc5d49b59f59 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < b8c0cb3069058c2d67b5c7c833b2833381ecffdc 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 2daa618e7ff19eefcbda281bc4c5998c4140f9cf 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 23cd30498891d29a69ec9b75bd92f8a0f21f1342 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 49a48a5aaf85fe69d2dc3fb334b4854fadf44e39 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 805edbdcb8681da5f7ee43b3c3c809f7a8c31208 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 693209a237fc548791cf402441db8b68d1da7d38 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 33ff111d7ba3beb86e28938d6382bb5beabd865a 2975472e042e0bbfeeabddc5023cb8c011ec5a07 6fb0e4385928900ccb8697748555b3f54bba5193 86137342fd4cf52882842aa8d1318b2661f08e8a b06e4d3ed4044c2facf10a511d809f9aa29d960e 4.14.175 < 4.15 4.19.114 < 4.20 5.4.29 < 5.5 5.5.14 < 5.6
Linux / Linux
5.6
References
git.kernel.org: https://git.kernel.org/stable/c/bb10a0084c03a94364aeec542beddc5d49b59f59 git.kernel.org: https://git.kernel.org/stable/c/b8c0cb3069058c2d67b5c7c833b2833381ecffdc git.kernel.org: https://git.kernel.org/stable/c/2daa618e7ff19eefcbda281bc4c5998c4140f9cf git.kernel.org: https://git.kernel.org/stable/c/23cd30498891d29a69ec9b75bd92f8a0f21f1342 git.kernel.org: https://git.kernel.org/stable/c/49a48a5aaf85fe69d2dc3fb334b4854fadf44e39 git.kernel.org: https://git.kernel.org/stable/c/805edbdcb8681da5f7ee43b3c3c809f7a8c31208 git.kernel.org: https://git.kernel.org/stable/c/693209a237fc548791cf402441db8b68d1da7d38 git.kernel.org: https://git.kernel.org/stable/c/33ff111d7ba3beb86e28938d6382bb5beabd865a