CVE-2026-98381 (GCVE-0-2026-98381)

Vulnerability from cvelistv5 – Published: 2026-10-09 07:34 – Updated: 2026-10-09 07:34
VLAI
Title
veth: manage XDP program pointers during channel resize
Summary
In the Linux kernel, the following vulnerability has been resolved: veth: manage XDP program pointers during channel resize veth_set_channels() tears down XDP resources for removed RX queues without clearing rq->xdp_prog. If the program is then detached or replaced, those queues keep the old pointer after bpf_prog_put(). A later channel increase can re-enable NAPI and run the freed program. BUG: unable to handle page fault for address: ffffc90000256048 Oops: Oops: 0000 [#1] SMP KASAN NOPTI RIP: veth_xdp_rcv_skb (include/linux/filter.h:779 include/net/xdp.h:696 drivers/net/veth.c:820) Call Trace: veth_xdp_rcv (drivers/net/veth.c:941) veth_poll (drivers/net/veth.c:986) __napi_poll (net/core/dev.c:7787) net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007) handle_softirqs (kernel/softirq.c:645) Kernel panic - not syncing: Fatal exception in interrupt
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 54/100 over 6633 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4752eeb3d891c27905a8fdf4d80e899c0efd4ec7 , < 7a8e143109ff2736dc79e41dcd55af7ceab7520a (git)
Affected: 4752eeb3d891c27905a8fdf4d80e899c0efd4ec7 , < 1a5c5b9c64ba5f39dba55da6e12561ca56eeb758 (git)
Affected: 4752eeb3d891c27905a8fdf4d80e899c0efd4ec7 , < f0e8dba8c224981e53c792c6b3dbb7604fb2c2c6 (git)
Affected: 4752eeb3d891c27905a8fdf4d80e899c0efd4ec7 , < 3c10a5dd0d38f506f671dbb59e9d0ee4c72076f9 (git)
Affected: 4752eeb3d891c27905a8fdf4d80e899c0efd4ec7 , < 25bb7c36225220d30f404d7e29d2e052bc5f4b99 (git)
Affected: 4752eeb3d891c27905a8fdf4d80e899c0efd4ec7 , < 43f6b647f209591b1e3f726bb16b8dcba6b95908 (git)
Affected: 4752eeb3d891c27905a8fdf4d80e899c0efd4ec7 , < 7104a370714346b667712913dc16abf14bbc97ed (git)
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Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.55 , ≤ 6.18.* (semver)
Unaffected: 7.2.9 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc5 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nveth: manage XDP program pointers during channel resize\n\nveth_set_channels() tears down XDP resources for removed RX queues\nwithout clearing rq-\u003exdp_prog.  If the program is then detached or\nreplaced, those queues keep the old pointer after bpf_prog_put().\nA later channel increase can re-enable NAPI and run the freed program.\n\n  BUG: unable to handle page fault for address: ffffc90000256048\n  Oops: Oops: 0000 [#1] SMP KASAN NOPTI\n  RIP: veth_xdp_rcv_skb (include/linux/filter.h:779\n                         include/net/xdp.h:696 drivers/net/veth.c:820)\n  Call Trace:\n   veth_xdp_rcv (drivers/net/veth.c:941)\n   veth_poll (drivers/net/veth.c:986)\n   __napi_poll (net/core/dev.c:7787)\n   net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007)\n   handle_softirqs (kernel/softirq.c:645)\n  Kernel panic - not syncing: Fatal exception in interrupt"
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    "dateReserved": "2026-09-25T10:25:14.345Z",
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nveth: manage XDP program pointers during channel resize\n\nveth_set_channels() tears down XDP resources for removed RX queues\nwithout clearing rq-\u003exdp_prog.  If the program is then detached or\nreplaced, those queues keep the old pointer after bpf_prog_put().\nA later channel increase can re-enable NAPI and run the freed program.\n\n  BUG: unable to handle page fault for address: ffffc90000256048\n  Oops: Oops: 0000 [#1] SMP KASAN NOPTI\n  RIP: veth_xdp_rcv_skb (include/linux/filter.h:779\n                         include/net/xdp.h:696 drivers/net/veth.c:820)\n  Call Trace:\n   veth_xdp_rcv (drivers/net/veth.c:941)\n   veth_poll (drivers/net/veth.c:986)\n   __napi_poll (net/core/dev.c:7787)\n   net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007)\n   handle_softirqs (kernel/softirq.c:645)\n  Kernel panic - not syncing: Fatal exception in interrupt"
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        "lastModified": "2026-10-09T08:16:56.547",
        "metrics": {},
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        "vulnStatus": "Received"
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.