In the Linux kernel, the following vulnerability has been resolved:
selinux: use sk blob accessor in socket permission helpers
SELinux socket state lives in the composite LSM socket blob.
sock_has_perm() and nlmsg_sock_has_extended_perms() currently dereference sk->sk_security directly, which assumes the SELinux socket blob is at offset zero.
In stacked configurations that assumption does not hold. If another LSM allocates socket blob storage before SELinux, these helpers may read the wrong blob and feed invalid SID and class values into AVC checks.
Use selinux_sock() instead of accessing sk->sk_security directly.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-debuginfoUpgrade perf6.18-debuginfoUpgrade perf6.18Upgrade bpftool6.18-debuginfoUpgrade kernel6.18-debuginfo-common-aarch64Upgrade python3-perf6.18Upgrade kernel6.18-develUpgrade kernel6.18-tools-develUpgrade python3-perf6.18-debuginfoUpgrade bpftool6.18Upgrade kernel6.18-tools-debuginfoUpgrade kernel6.18-modules-extra-commonUpgrade kernel-livepatch-6.18.30-61.116Upgrade kernel6.18-toolsUpgrade kernel6.18-headersUpgrade kernel6.18-modules-extraUpgrade kernel6.18 | Jun 23, 2026 | May 28, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | May 28, 2026 |
| Ubuntu | — | Upgrade linux-image-ibm-7.0Upgrade linux-image-oem-26.04aUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-7.0.0-28-generic-64kUpgrade linux-image-gkeUpgrade linux-image-raspiUpgrade linux-image-7.0.0-1003-gke-64kUpgrade linux-image-azureUpgrade linux-image-azure-fdeUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-genericUpgrade linux-image-oracleUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-7.0.0-1008-gcpUpgrade linux-image-gcp-7.0Upgrade linux-image-7.0.0-28-genericUpgrade linux-image-aws-64k-7.0Upgrade linux-image-nvidia-7.0Upgrade linux-image-oem-26.04Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-gke-64k-7.0Upgrade linux-image-realtime-7.0Upgrade linux-image-gke-7.0Upgrade linux-image-7.0.0-28-realtime-64kUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oem-24.04bUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-7.0.0-28-realtimeUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-7.0.0-1009-oemUpgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-nvidia-bosUpgrade linux-image-gke-64kUpgrade linux-image-7.0.0-1010-azureUpgrade linux-image-azure-fde-7.0Upgrade linux-image-nvidiaUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-gcp-64kUpgrade linux-image-oem-24.04Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-oracle-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-generic-7.0Upgrade linux-image-generic-64k-7.0Upgrade linux-image-awsUpgrade linux-image-7.0.0-1009-awsUpgrade linux-image-raspi-7.0Upgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-oem-7.0Upgrade linux-image-gke-hwe-26.04Upgrade linux-image-raspi-realtimeUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-virtual-7.0Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-7.0.0-1003-gkeUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oem-24.04cUpgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-oem-24.04aUpgrade linux-image-azure-7.0Upgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-7.0.0-1008-gcp-64kUpgrade linux-image-virtualUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-ibmUpgrade linux-image-generic-64kUpgrade linux-image-gcpUpgrade linux-image-aws-64kUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-realtime-64kUpgrade linux-image-realtimeUpgrade linux-image-oracle-7.0Upgrade linux-image-oem-24.04d | Jul 20, 2026 | May 28, 2026 |
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