net/packet: clear RX owner on VNET header error
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.
CVE-2026-98233
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98233
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "61fad6816fc10fb8793a925d5c1256d1c3db0cd2",
"lessThan": "bb10a0084c03a94364aeec542beddc5d49b59f59",
"versionType": "git"
},
{
"status": "affected",
"version": "61fad6816fc10fb8793a925d5c1256d1c3db0cd2",
"lessThan": "b8c0cb3069058c2d67b5c7c833b2833381ecffdc",
"versionType": "git"
},
{
"status": "affected",
"version": "61fad6816fc10fb8793a925d5c1256d1c3db0cd2",
"lessThan": "2daa618e7ff19eefcbda281bc4c5998c4140f9cf",
"versionType": "git"
},
{
"status": "affected",
"version": "61fad6816fc10fb8793a925d5c1256d1c3db0cd2",
"lessThan": "23cd30498891d29a69ec9b75bd92f8a0f21f1342",
"versionType": "git"
},
{
"status": "affected",
"version": "61fad6816fc10fb8793a925d5c1256d1c3db0cd2",
"lessThan": "49a48a5aaf85fe69d2dc3fb334b4854fadf44e39",
"versionType": "git"
},
{
"status": "affected",
"version": "61fad6816fc10fb8793a925d5c1256d1c3db0cd2",
"lessThan": "805edbdcb8681da5f7ee43b3c3c809f7a8c31208",
"versionType": "git"
},
{
"status": "affected",
"version": "61fad6816fc10fb8793a925d5c1256d1c3db0cd2",
"lessThan": "693209a237fc548791cf402441db8b68d1da7d38",
"versionType": "git"
},
{
"status": "affected",
"version": "61fad6816fc10fb8793a925d5c1256d1c3db0cd2",
"lessThan": "33ff111d7ba3beb86e28938d6382bb5beabd865a",
"versionType": "git"
},
{
"status": "affected",
"version": "2975472e042e0bbfeeabddc5023cb8c011ec5a07",
"versionType": "git"
},
{
"status": "affected",
"version": "6fb0e4385928900ccb8697748555b3f54bba5193",
"versionType": "git"
},
{
"status": "affected",
"version": "86137342fd4cf52882842aa8d1318b2661f08e8a",
"versionType": "git"
},
{
"status": "affected",
"version": "b06e4d3ed4044c2facf10a511d809f9aa29d960e",
"versionType": "git"
},
{
"status": "affected",
"version": "4.14.175",
"lessThan": "4.15",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.19.114",
"lessThan": "4.20",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.4.29",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.5.14",
"lessThan": "5.6",
"versionType": "semver"
}
],
"programFiles": [
"net/packet/af_packet.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/packet/af_packet.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98233
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38313 · Revision 1
- Added to Heist Feed
- Publisher date