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CVE-2026-63970

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: bind uarg before filling zerocopy skb virtio_transport_send_pkt_info() allocates or reuses the zerocopy uarg before entering the send loop, but virtio_transport_alloc_skb() still fills the skb before it inherits that uarg. When fixed-buffer vectored zerocopy hits MAX_SKB_FRAGS, io_sg_from_iter() may partially attach managed frags and return -EMSGSIZE. The rollback path call kfree_skb() to free an skb that carries
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7baaf1d6c21eb410c8a0a460a8d16bd24cd66b4c077ff6deb3776d7d223605d1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport_common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"72194f65050958e4c8e069adb6c5d89ef81ca197","status":"affected","version":"581512a6dc939ef122e49336626ae159f3b8a345","versionType":"git"},{"lessThan":"b62e2b2b4a50953ca952f3cd3f77dd62dc50fd5d","status":"affected","version":"581512a6dc939ef122e49336626ae159f3b8a345","versionType":"git"},{"lessThan":"5d317573f1d48e76cce5fb6250452b6e4102e0fb","status":"affected","version":"581512…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1025ffb47ddf7fe803d70619b9de74cbe3a21b586bb962a8b5808fddc1ae7635 · sha256:da07baedee0b717a… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport_common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.7"},{"lessThan":"6.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semve…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1025ffb47ddf7fe803d70619b9de74cbe3a21b586bb962a8b5808fddc1ae7635 · sha256:da07baedee0b717a… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport_common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"72194f65050958e4c8e069adb6c5d89ef81ca197","status":"affected","version":"581512a6dc939ef122e49336626ae159f3b8a345","versionType":"git"},{"lessThan":"b62e2b2b4a50953ca952f3cd3f77dd62dc50fd5d","status":"affected","version":"581512a6dc939ef122e49336626ae159f3b8a345","versionType":"git"},{"lessThan":"5d317573f1d48e76cce5fb6250452b6e4102e0fb","status":"affected","version":"581512…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1025ffb47ddf7fe803d70619b9de74cbe3a21b586bb962a8b5808fddc1ae7635 · sha256:da07baedee0b717a… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport_common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.7"},{"lessThan":"6.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semve…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1025ffb47ddf7fe803d70619b9de74cbe3a21b586bb962a8b5808fddc1ae7635 · sha256:da07baedee0b717a… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1025ffb47ddf7fe803d70619b9de74cbe3a21b586bb962a8b5808fddc1ae7635 · sha256:da07baedee0b717a… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/1e584c304cfb94a759417130b1fc6d30b30c4cce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1025ffb47ddf7fe803d70619b9de74cbe3a21b586bb962a8b5808fddc1ae7635 · sha256:da07baedee0b717a… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/5d317573f1d48e76cce5fb6250452b6e4102e0fb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1025ffb47ddf7fe803d70619b9de74cbe3a21b586bb962a8b5808fddc1ae7635 · sha256:da07baedee0b717a… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/72194f65050958e4c8e069adb6c5d89ef81ca197"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1025ffb47ddf7fe803d70619b9de74cbe3a21b586bb962a8b5808fddc1ae7635 · sha256:da07baedee0b717a… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/b62e2b2b4a50953ca952f3cd3f77dd62dc50fd5d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1025ffb47ddf7fe803d70619b9de74cbe3a21b586bb962a8b5808fddc1ae7635 · sha256:da07baedee0b717a… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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