CVE-2026-98375
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: xen/netfront: drop RX packets with a short Ethernet header handle_incoming_queue() pulls pull_to bytes into the head before calling eth_type_trans(). pull_to is the length of the first RX slot, capped at RX_COPY_THRESHOLD, and that length comes from the backend. Nothing checks it against ETH_HLEN. If the first slot is shorter than ETH_HLEN and more slots follow, the head ends up shorter than an Ethernet header while skb->len is longer, and eth_type_trans() BUG()s in __skb_pull(). If the whole packet is shorter than ETH_HLEN, eth_type_trans() reads the header past the end of the data instead. Pull at least ETH_HLEN, and drop the packet if that fails, which also drops packets too short to hold an Ethernet header. This also checks the return value of the pull, which was ignored.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-10-09 08:16:55.807000
Last modified
2026-10-30 13:21:13.277000
View original CVE JSON
{
"id": "CVE-2026-98375",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-10-09T08:16:55.807",
"lastModified": "2026-10-30T13:21:13.277",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxen/netfront: drop RX packets with a short Ethernet header\n\nhandle_incoming_queue() pulls pull_to bytes into the head before\ncalling eth_type_trans(). pull_to is the length of the first RX slot,\ncapped at RX_COPY_THRESHOLD, and that length comes from the backend.\nNothing checks it against ETH_HLEN.\n\nIf the first slot is shorter than ETH_HLEN and more slots follow, the\nhead ends up shorter than an Ethernet header while skb->len is longer,\nand eth_type_trans() BUG()s in __skb_pull(). If the whole packet is\nshorter than ETH_HLEN, eth_type_trans() reads the header past the end\nof the data instead.\n\nPull at least ETH_HLEN, and drop the packet if that fails, which also\ndrops packets too short to hold an Ethernet header. This also checks\nthe return value of the pull, which was ignored."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/net/xen-netfront.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "0d160211965b79de989cf2d170985abeb8da5ec6",
"lessThan": "fd5481dd75ea879c53c17882cbb065ad3bd6b766",
"versionType": "git",
"status": "affected"
},
{
"version": "0d160211965b79de989cf2d170985abeb8da5ec6",
"lessThan": "9cb8813d157b4d15103d3b34c635620f36df4173",
"versionType": "git",
"status": "affected"
},
{
"version": "0d160211965b79de989cf2d170985abeb8da5ec6",
"lessThan": "57508819da8dc1cf5a2c3b64570aa02cc5ae28b6",
"versionType": "git",
"status": "affected"
},
{
"version": "0d160211965b79de989cf2d170985abeb8da5ec6",
"lessThan": "0542d213253eec18785a24b603b28bd385dfe4a5",
"versionType": "git",
"status": "affected"
},
{
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"versionType": "git",
"status": "affected"
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{
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"lessThan": "72d2f54367895d6e236b9857892e2e6b6036e067",
"versionType": "git",
"status": "affected"
},
{
"version": "0d160211965b79de989cf2d170985abeb8da5ec6",
"lessThan": "e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e",
"versionType": "git",
"status": "affected"
},
{
"version": "0d160211965b79de989cf2d170985abeb8da5ec6",
"lessThan": "089e58805c452e52179482b1025a8e309a57f801",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/net/xen-netfront.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "2.6.23",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.23",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.273",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.224",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.191",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.160",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.113",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.56",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.2.10",
"lessThanOrEqual": "7.2.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.3",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/0542d213253eec18785a24b603b28bd385dfe4a5",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/089e58805c452e52179482b1025a8e309a57f801",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/236a17caebcff31f75bec5ff4136bde2de944e40",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/57508819da8dc1cf5a2c3b64570aa02cc5ae28b6",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/72d2f54367895d6e236b9857892e2e6b6036e067",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9cb8813d157b4d15103d3b34c635620f36df4173",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/fd5481dd75ea879c53c17882cbb065ad3bd6b766",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/10/09/3",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://xenbits.xen.org/xsa/advisory-522.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
]
}