{"id":"CVE-2026-98233","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/packet: clear RX owner on VNET header error\n\nCommit 61fad6816fc1 (\"net/packet: tpacket_rcv: avoid a producer race\ncondition\") added rx_owner_map and made tpacket_rc…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/packet: clear RX owner on VNET header error\n\nCommit 61fad6816fc1 (\"net/packet: tpacket_rcv: avoid a producer race\ncondition\") added rx_owner_map and made tpacket_rc…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < bb10a0084c03a94364aeec542beddc5d49b59f59","Linux >= 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < b8c0cb3069058c2d67b5c7c833b2833381ecffdc","Linux >= 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 2daa618e7ff19eefcbda281bc4c5998c4140f9cf","Linux >= 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 23cd30498891d29a69ec9b75bd92f8a0f21f1342","Linux >= 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 49a48a5aaf85fe69d2dc3fb334b4854fadf44e39","Linux >= 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 805edbdcb8681da5f7ee43b3c3c809f7a8c31208","Linux >= 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 693209a237fc548791cf402441db8b68d1da7d38","Linux >= 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 33ff111d7ba3beb86e28938d6382bb5beabd865a","Linux 2975472e042e0bbfeeabddc5023cb8c011ec5a07","Linux 6fb0e4385928900ccb8697748555b3f54bba5193","Linux 86137342fd4cf52882842aa8d1318b2661f08e8a","Linux b06e4d3ed4044c2facf10a511d809f9aa29d960e","Linux >= 4.14.175 < 4.15","Linux >= 4.19.114 < 4.20","Linux >= 5.4.29 < 5.5","Linux >= 5.5.14 < 5.6","Linux 5.6"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T09:18:10.857","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98233","references":[{"url":"https://git.kernel.org/stable/c/23cd30498891d29a69ec9b75bd92f8a0f21f1342","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2daa618e7ff19eefcbda281bc4c5998c4140f9cf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/33ff111d7ba3beb86e28938d6382bb5beabd865a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/49a48a5aaf85fe69d2dc3fb334b4854fadf44e39","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/693209a237fc548791cf402441db8b68d1da7d38","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/805edbdcb8681da5f7ee43b3c3c809f7a8c31208","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b8c0cb3069058c2d67b5c7c833b2833381ecffdc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bb10a0084c03a94364aeec542beddc5d49b59f59","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98233.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98233"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2546391"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98233"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98233"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98233.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-10-06T08:50:17.435Z","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"epss":0.00177,"epssPercentile":0.07164,"slug":"CVE-2026-98233","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet/packet: clear RX owner on VNET header error\n\nCommit 61fad6816fc1 (\"net/packet: tpacket_rcv: avoid a producer race\ncondition\") added rx_owner_map and made tpacket_rcv() claim a V1 or V2\nring slot before converting the virtio-net header.  If the conversion\nfails, the drop path leaves the slot claimed.\n\nWith a one-frame TPACKET_V2 ring, an unsupported UDP GSO packet leaves\nthe only slot unavailable, so the ring also drops the next valid packet.\n\nClear the ownership bit on this error path.  TPACKET_V3 already clears\nits block state here.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-09 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98233.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":218772,"id":"CVE-2026-98233","ts":1791620505519,"field":"cvss","old":null,"new":"5.5"},{"seq":218771,"id":"CVE-2026-98233","ts":1791620505519,"field":"severity","old":"none","new":"medium"}]}