In the Linux kernel, the following vulnerability has been resolved:
qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure
adapter->dcb would get silently freed inside qlcnic_dcb_enable() in case qlcnic_dcb_attach() would return an error, which always happens under OOM conditions. This would lead to use-after-free because both of the existing callers invoke qlcnic_dcb_get_info() on the obtained pointer, which is potentially freed at that point.
Propagate errors from qlcnic_dcb_enable(), and instead free the dcb pointer at callsite using qlcnic_dcb_free(). This also removes the now unused qlcnic_clear_dcb_ops() helper, which was a simple wrapper around kfree() also causing memory leaks for partially initialized dcb.
Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
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 Ami 2 | — | Upgrade python-perf-debuginfoUpgrade kernel-headersUpgrade kernel-tools-develUpgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade perfUpgrade perf-debuginfoUpgrade bpftool-debuginfoUpgrade python-perfUpgrade kernel-toolsUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-5.10.165-143.735Upgrade bpftool | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Sep 17, 2025 | Sep 17, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Sep 15, 2025 |
| Ubuntu | — | Upgrade linux-ibmUpgrade linux-azure-5.4Upgrade linux-gcp-5.15Upgrade linux-hweUpgrade linux-gkeopUpgrade linux-oracleUpgrade linux-gcp-fipsUpgrade linux-nvidiaUpgrade linux-xilinx-zynqmpUpgrade linux-fipsUpgrade linux-azureUpgrade linux-oracle-5.15Upgrade linux-intel-iotgUpgrade linux-gcp-5.4Upgrade linux-aws-hweUpgrade linux-azure-4.15Upgrade linux-realtimeUpgrade linux-aws-fipsUpgrade linux-hwe-5.4Upgrade linux-hwe-5.15Upgrade linux-gcpUpgrade linux-riscv-5.15Upgrade linux-azure-fipsUpgrade linux-kvmUpgrade linux-intel-iotg-5.15Upgrade linux-azure-5.15Upgrade linux-lowlatencyUpgrade linux-gcp-4.15Upgrade linuxUpgrade linux-raspiUpgrade linux-intel-iot-realtimeUpgrade linux-gkeUpgrade linux-nvidia-tegra-5.15Upgrade linux-oracle-5.4Upgrade linux-ibm-5.4Upgrade linux-aws-5.4Upgrade linux-raspi-5.4Upgrade linux-bluefieldUpgrade linux-iotUpgrade linux-aws-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-aws | Sep 19, 2025 | Sep 16, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 15, 2025 | Sep 15, 2025 |
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