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  4. CVE 2026 98375 xennetfront drop rx packets with a short ethernet
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Copyright ยฉ 2026 HOL DAO LLC. All rights reserved.

Back to active CVEs
Unknown severity ยท Source severity not reportedCVE-2026-98375

xen/netfront: drop RX packets with a short Ethernet headerCVE-2026-98375

Answer in brief

CVE-2026-98375 records a Unknown severity vulnerability in xen/netfront: drop RX packets with a short Ethernet header. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 9, 2026Updated Oct 21, 2026Source checked Oct 25, 2026First seen by HOL Oct 9, 2026Material review Oct 21, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 25, 2026
References
7 linked sources
Open source record

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
5 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=0d160211965b79de989cf2d170985abeb8da5ec6 <72d2f54367895d6e236b9857892e2e6b6036e067 || >=0d160211965b79de989cf2d170985abeb8da5ec6 <e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e || >=0d160211965b79de989cf2d170985abeb8da5ec6 <089e58805c452e52179482b1025a8e309a57f80172d2f54367895d6e236b9857892e2e6b6036e067, e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e, 089e58805c452e52179482b1025a8e309a57f801
Linux/Linuxgeneric>=0d160211965b79de989cf2d170985abeb8da5ec6 <089e58805c452e52179482b1025a8e309a57f801089e58805c452e52179482b1025a8e309a57f801
Linux/Linuxgeneric2.6.23Not reported
Linux/Linuxgeneric>=0d160211965b79de989cf2d170985abeb8da5ec6 <236a17caebcff31f75bec5ff4136bde2de944e40 || >=0d160211965b79de989cf2d170985abeb8da5ec6 <72d2f54367895d6e236b9857892e2e6b6036e067 || >=0d160211965b79de989cf2d170985abeb8da5ec6 <e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e || >=0d160211965b79de989cf2d170985abeb8da5ec6 <089e58805c452e52179482b1025a8e309a57f801236a17caebcff31f75bec5ff4136bde2de944e40, 72d2f54367895d6e236b9857892e2e6b6036e067, e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e, 089e58805c452e52179482b1025a8e309a57f801
Linux/Linuxgeneric>=0d160211965b79de989cf2d170985abeb8da5ec6 <0542d213253eec18785a24b603b28bd385dfe4a5 || >=0d160211965b79de989cf2d170985abeb8da5ec6 <236a17caebcff31f75bec5ff4136bde2de944e40 || >=0d160211965b79de989cf2d170985abeb8da5ec6 <72d2f54367895d6e236b9857892e2e6b6036e067 || >=0d160211965b79de989cf2d170985abeb8da5ec6 <e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e || >=0d160211965b79de989cf2d170985abeb8da5ec6 <089e58805c452e52179482b1025a8e309a57f8010542d213253eec18785a24b603b28bd385dfe4a5, 236a17caebcff31f75bec5ff4136bde2de944e40, 72d2f54367895d6e236b9857892e2e6b6036e067, e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e, 089e58805c452e52179482b1025a8e309a57f801

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 72d2f54367895d6e236b9857892e2e6b6036e067; Linux/Linux to 089e58805c452e52179482b1025a8e309a57f801; Linux/Linux to 236a17caebcff31f75bec5ff4136bde2de944e40; Linux/Linux to 0542d213253eec18785a24b603b28bd385dfe4a5 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 9, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 9, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referenceopenwall.com
  • Source referencexenbits.xen.org
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.