In the Linux kernel, the following vulnerability has been resolved:
fscrypt: destroy keyring after security_sb_delete()
fscrypt_destroy_keyring() must be called after all potentially-encrypted inodes were evicted; otherwise it cannot safely destroy the keyring. Since inodes that are in-use by the Landlock LSM don't get evicted until security_sb_delete(), this means that fscrypt_destroy_keyring() must be called *after* security_sb_delete().
This fixes a WARN_ON followed by a NULL dereference, only possible if Landlock was being used on encrypted files.
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 perf-debuginfoUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.15.106-64.140Upgrade python-perfUpgrade perfUpgrade bpftool-debuginfoUpgrade kernel-develUpgrade bpftoolUpgrade python-perf-debuginfoUpgrade kernelUpgrade kernel-headersUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-tools-debuginfo | Jul 9, 2025 | May 2, 2025 |
| Amazon_linux_2023 | — | Upgrade perfUpgrade kernel-headersUpgrade kernel-tools-develUpgrade perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernel-libbpf-develUpgrade kernelUpgrade bpftoolUpgrade kernel-debuginfo-common-x86_64Upgrade python3-perfUpgrade bpftool-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-libbpfUpgrade kernel-libbpf-staticUpgrade kernel-livepatch-6.1.23-36.46Upgrade kernel-tools | Jul 11, 2025 | May 2, 2025 |
| Debian | — | Upgrade linux | May 5, 2025 | May 2, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 2, 2025 |
| Ubuntu | — | Upgrade linux-azureUpgrade linux-bluefieldUpgrade linux-awsUpgrade linux-nvidia-tegra-igxUpgrade linux-realtimeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-gcpUpgrade linux-hwe-5.15Upgrade linux-intel-iotg-5.15Upgrade linuxUpgrade linux-intel-iot-realtimeUpgrade linux-nvidia-tegra-5.15Upgrade linux-azure-5.15Upgrade linux-kvmUpgrade linux-ibmUpgrade linux-intel-iotgUpgrade linux-oracle-5.15Upgrade linux-raspiUpgrade linux-gkeopUpgrade linux-lowlatencyUpgrade linux-riscv-5.15Upgrade linux-nvidia-tegraUpgrade linux-xilinx-zynqmpUpgrade linux-nvidiaUpgrade linux-aws-5.15Upgrade linux-oracleUpgrade linux-gcp-5.15Upgrade linux-ibm-5.15Upgrade linux-azure-fdeUpgrade linux-gke | May 8, 2025 | May 2, 2025 |
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