In the Linux kernel, the following vulnerability has been resolved:
crypto: essiv - Handle EBUSY correctly
As it is essiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request.
However, as the caller of essiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-toolsUpgrade kernel-headersUpgrade kernel-livepatch-5.15.102-61.139Upgrade bpftool-debuginfoUpgrade perf-debuginfoUpgrade kernel-livepatch-5.10.173-154.642Upgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade python-perf-debuginfoUpgrade bpftoolUpgrade perfUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-devel | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-libbpf-develUpgrade kernel-toolsUpgrade kernelUpgrade python3-perfUpgrade kernel-livepatch-6.1.19-30.43Upgrade kernel-tools-develUpgrade perf-debuginfoUpgrade perfUpgrade kernel-headersUpgrade bpftool-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-libbpfUpgrade bpftoolUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-libbpf-staticUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfo | Feb 20, 2026 | Dec 24, 2025 |
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 24, 2025 |
| Ubuntu | — | Upgrade linux-kvmUpgrade linux-hwe-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-lowlatencyUpgrade linux-aws-fipsUpgrade linux-hwe-5.4Upgrade linux-azure-5.4Upgrade linux-oracle-5.15Upgrade linux-fipsUpgrade linux-intel-iot-realtimeUpgrade linux-gcp-5.15Upgrade linux-riscv-5.15Upgrade linux-gcp-fipsUpgrade linux-intel-iotgUpgrade linux-iotUpgrade linux-gcp-5.4Upgrade linux-gkeopUpgrade linux-azure-fipsUpgrade linux-azure-5.15Upgrade linux-azureUpgrade linux-nvidiaUpgrade linux-oracleUpgrade linux-ibmUpgrade linux-intel-iotg-5.15Upgrade linux-realtimeUpgrade linux-gcpUpgrade linux-lowlatency-hwe-5.15Upgrade linuxUpgrade linux-gkeUpgrade linux-aws-5.15Upgrade linux-aws-5.4Upgrade linux-awsUpgrade linux-oracle-5.4Upgrade linux-raspiUpgrade linux-ibm-5.4Upgrade linux-nvidia-tegraUpgrade linux-nvidia-tegra-5.15Upgrade linux-bluefieldUpgrade linux-raspi-5.4 | Jan 6, 2026 | Dec 24, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 24, 2025 |
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