In the Linux kernel, the following vulnerability has been resolved:
ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode
There are many places that will get unhappy (and crash) when ext4_iget() returns a bad inode. However, if iget the boot loader inode, allows a bad inode to be returned, because the inode may not be initialized. This mechanism can be used to bypass some checks and cause panic. To solve this problem, we add a special iget flag EXT4_IGET_BAD. Only with this flag we'd be returning bad inode from ext4_iget(), otherwise we always return the error code if the inode is bad inode.(suggested by Jan Kara)
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 bpftool-debuginfoUpgrade kernel-toolsUpgrade kernel-livepatch-5.10.165-143.735Upgrade kernel-debuginfo-common-x86_64Upgrade python-perfUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-develUpgrade perfUpgrade kernel-tools-develUpgrade kernel-livepatch-5.15.90-54.138Upgrade kernel-tools-debuginfoUpgrade kernelUpgrade bpftoolUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64 | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Oct 6, 2025 | Oct 6, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelists | Dec 12, 2025 | Dec 11, 2025 |
| Redhat_linux | — | Upgrade kernel-rtNo solution existsUpgrade kernel | Nov 14, 2025 | Oct 4, 2025 |
| Ubuntu | — | Upgrade linux-azureUpgrade linux-nvidiaUpgrade linux-raspiUpgrade linux-riscv-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-intel-iotgUpgrade linux-lowlatency-hwe-5.15Upgrade linux-aws-5.15Upgrade linux-raspi-5.4Upgrade linux-azure-5.4Upgrade linux-oracle-5.4Upgrade linux-bluefieldUpgrade linux-gkeUpgrade linux-fipsUpgrade linux-realtimeUpgrade linux-awsUpgrade linux-intel-iotg-5.15Upgrade linux-kvmUpgrade linux-aws-5.4Upgrade linux-gcp-5.15Upgrade linux-gcpUpgrade linux-oracleUpgrade linux-hwe-5.15Upgrade linux-iotUpgrade linux-gkeopUpgrade linux-aws-fipsUpgrade linux-ibmUpgrade linux-hwe-5.4Upgrade linux-gcp-fipsUpgrade linux-azure-5.15Upgrade linux-lowlatencyUpgrade linux-azure-fde-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-nvidia-tegra-5.15Upgrade linux-azure-fipsUpgrade linux-ibm-5.4Upgrade linux-gcp-5.4Upgrade linux-oracle-5.15Upgrade linux | Oct 10, 2025 | Oct 4, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 15, 2025 | Oct 4, 2025 |
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