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In the Linux kernel, the following vulnerability has been resolved:
xfrm: iptfs: preserve shared-frag marker in iptfs_consume_frags()
iptfs_consume_frags() transfers paged fragments from one socket buffer to another but fails to propagate the SKBFL_SHARED_FRAG flag. This is the same class of bug that was fixed in skb_try_coalesce() for CVE-2026-46300: when fragments backed by read-only page-cache pages are merged, the marker indicating their shared nature must be preserved so that ESP can decide correctly whether in-place encryption is safe.
Apply the same two-line fix used in skb_try_coalesce() to iptfs_consume_frags().
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-image-realtime-hwe-26.04Upgrade linux-image-nvidia-64kUpgrade linux-image-gkeUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-64kUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-virtualUpgrade linux-image-7.0.0-31-genericUpgrade linux-image-virtual-7.0Upgrade linux-image-oem-26.04bUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-genericUpgrade linux-image-oem-7.0Upgrade linux-image-realtimeUpgrade linux-image-nvidia-bos-64kUpgrade linux-image-azure-7.0Upgrade linux-image-7.0.0-2018-nvidia-bosUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-7.0.0-31-realtime-64kUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-realtime-64kUpgrade linux-image-ibm-7.0Upgrade linux-image-7.0.0-1019-raspi-realtimeUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1013-ibmUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-gcpUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-oracleUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-generic-64k-7.0Upgrade linux-image-7.0.0-1013-oemUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-7.0.0-1006-gke-64kUpgrade linux-image-nvidiaUpgrade linux-image-oracle-64kUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-31-generic-64kUpgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-7.0.0-1019-raspiUpgrade linux-image-raspi-realtimeUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-gcp-7.0Upgrade linux-image-oem-26.04aUpgrade linux-image-gke-7.0Upgrade linux-image-realtime-7.0Upgrade linux-image-oracle-7.0Upgrade linux-image-nvidia-7.0Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-raspiUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-raspi-7.0Upgrade linux-image-azureUpgrade linux-image-7.0.0-1018-nvidia-64kUpgrade linux-image-nvidia-bosUpgrade linux-image-7.0.0-1018-nvidiaUpgrade linux-image-7.0.0-1006-gkeUpgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-2018-nvidia-bos-64kUpgrade linux-image-aws-7.0Upgrade linux-image-gcp-64kUpgrade linux-image-azure-lts-26.04Upgrade linux-image-ibmUpgrade linux-image-gke-64k-7.0Upgrade linux-image-gke-64kUpgrade linux-image-7.0.0-1012-aws-64kUpgrade linux-image-7.0.0-1012-awsUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-oem-26.04Upgrade linux-image-generic-7.0Upgrade linux-image-awsUpgrade linux-image-7.0.0-31-realtime | Sep 14, 2026 | Sep 7, 2026 |
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