In the Linux kernel, the following vulnerability has been resolved:
cifs: Fix locking usage for tcon fields
We used to use the cifs_tcp_ses_lock to protect a lot of objects that are not just the server, ses or tcon lists. We later introduced srv_lock, ses_lock and tc_lock to protect fields within the corresponding structs. This was done to provide a more granular protection and avoid unnecessary serialization.
There were still a couple of uses of cifs_tcp_ses_lock to provide tcon fields. In this patch, I've replaced them with tc_lock.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.18-headersUpgrade kernel6.18-debuginfoUpgrade kernel6.18-develUpgrade perf6.18-debuginfoUpgrade python3-perf6.18-debuginfoUpgrade kernel6.18-tools-debuginfoUpgrade python3-perf6.18Upgrade kernel6.18-tools-develUpgrade kernel6.18-libbpf-develUpgrade bpftool6.18-debuginfoUpgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-modules-extra-commonUpgrade perf6.18Upgrade kernel6.18-libbpf-debuginfoUpgrade kernel6.18-toolsUpgrade kernel6.18Upgrade kernel6.18-modules-extraUpgrade kernel-livepatch-6.18.16-18.222Upgrade kernel6.18-libbpfUpgrade kernel6.18-debuginfo-common-aarch64Upgrade bpftool6.18Upgrade kernel6.18-libbpf-static | May 19, 2026 | May 6, 2026 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | May 6, 2026 |
| Ubuntu | — | Upgrade linux-image-nvidia-tegraUpgrade linux-image-oem-22.04cUpgrade linux-image-nvidiaUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1062-azure-fipsUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-generic-64kUpgrade linux-image-oem-20.04cUpgrade linux-image-oem-20.04dUpgrade linux-image-aws-6.8Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-azure-fdeUpgrade linux-image-generic-lpaeUpgrade linux-image-fips-6.8Upgrade linux-image-azureUpgrade linux-image-lowlatency-64kUpgrade linux-image-azure-fipsUpgrade linux-image-oem-22.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-raspi-realtimeUpgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1063-gcp-64kUpgrade linux-image-kvmUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-xilinxUpgrade linux-image-6.8.0-1045-gkeopUpgrade linux-image-6.8.0-134-lowlatencyUpgrade linux-image-ibm-classicUpgrade linux-image-generic-64k-6.8Upgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-virtual-6.8Upgrade linux-image-generic-6.8Upgrade linux-image-genericUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1057-oracleUpgrade linux-image-gcpUpgrade linux-image-gke-64kUpgrade linux-image-ibmUpgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-1062-azure-fdeUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-raspiUpgrade linux-image-oracle-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.1-1055-realtimeUpgrade linux-image-gcp-fipsUpgrade linux-image-6.8.0-134-genericUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-6.8.0-1032-xilinxUpgrade linux-image-6.8.0-1058-gke-64kUpgrade linux-image-ibm-6.8Upgrade linux-image-6.8.0-136-genericUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1058-nvidia-lowlatency-64kUpgrade linux-image-oem-20.04bUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oem-22.04bUpgrade linux-image-nvidia-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-realtime-6.8.1Upgrade linux-image-6.8.0-1060-ibmUpgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-134-fipsUpgrade linux-image-aws-fips-6.8Upgrade linux-image-laptop-23.10Upgrade linux-image-gkeopUpgrade linux-image-gcp-64kUpgrade linux-image-fipsUpgrade linux-image-azure-6.8Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-6.8.0-134-lowlatency-64kUpgrade linux-image-6.8.0-1060-raspiUpgrade linux-image-6.8.0-136-generic-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-134-generic-64kUpgrade linux-image-6.8.0-1058-gkeUpgrade linux-image-6.8.0-1029-nvidia-tegraUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-aws-lts-24.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1063-gcp-fipsUpgrade linux-image-6.8.0-1058-nvidia-64kUpgrade linux-image-xilinx-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-lowlatency-6.8Upgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-gkeUpgrade linux-image-oem-20.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-1063-azureUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-1063-gcpUpgrade linux-image-6.8.0-1058-nvidiaUpgrade linux-image-6.8.0-1057-oracle-64kUpgrade linux-image-realtimeUpgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1029-nvidia-tegra-rtUpgrade linux-image-azure-fde-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-awsUpgrade linux-image-6.8.0-1060-aws-fipsUpgrade linux-image-6.8.0-1060-aws-64kUpgrade linux-image-aws-64kUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-oracleUpgrade linux-image-6.8.0-2049-raspi-realtimeUpgrade linux-image-oracle-6.8Upgrade linux-image-6.8.0-1060-awsUpgrade linux-image-raspi-6.8Upgrade linux-image-6.8.0-1058-nvidia-lowlatencyUpgrade linux-image-virtual | Jul 2, 2026 | Jul 1, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jun 22, 2026 | May 6, 2026 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub