In the Linux kernel, the following vulnerability has been resolved:
ext4: fix deadlock when converting an inline directory in nojournal mode
In no journal mode, ext4_finish_convert_inline_dir() can self-deadlock by calling ext4_handle_dirty_dirblock() when it already has taken the directory lock. There is a similar self-deadlock in ext4_incvert_inline_data_nolock() for data files which we'll fix at the same time.
A simple reproducer demonstrating the problem:
mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64 mount -t ext4 -o dirsync /dev/vdc /vdc cd /vdc mkdir file0 cd file0 touch file0 touch file1 attr -s BurnSpaceInEA -V abcde . touch supercalifragilisticexpialidocious
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-tools-develUpgrade kernelUpgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-headersUpgrade kernel-livepatch-5.15.117-72.142Upgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade bpftoolUpgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade python-perfUpgrade kernel-livepatch-5.10.184-174.730 | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade perf-debuginfoUpgrade kernel-libbpfUpgrade kernel-tools-develUpgrade kernel-debuginfoUpgrade perfUpgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade kernel-develUpgrade kernelUpgrade python3-perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade python3-perfUpgrade kernel-livepatch-6.1.29-47.49Upgrade kernel-debuginfo-common-x86_64Upgrade bpftoolUpgrade kernel-libbpf-staticUpgrade kernel-libbpf-devel | Feb 20, 2026 | Dec 30, 2025 |
| Debian | — | Upgrade linux | Dec 31, 2025 | Dec 31, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade bpftool | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 30, 2025 |
| Ubuntu | — | Upgrade linux-azure-fde-5.15Upgrade linux-awsUpgrade linux-kvmUpgrade linux-hwe-5.15Upgrade linux-raspiUpgrade linux-lowlatency-hwe-5.15Upgrade linux-nvidiaUpgrade linux-xilinx-zynqmpUpgrade linux-ibmUpgrade linux-azure-5.15Upgrade linux-azure-5.4Upgrade linux-azureUpgrade linux-azure-fdeUpgrade linux-gkeopUpgrade linux-iotUpgrade linux-intel-iotg-5.15Upgrade linux-gcp-5.15Upgrade linux-oracleUpgrade linux-bluefieldUpgrade linux-aws-fipsUpgrade linux-gcp-fipsUpgrade linux-realtimeUpgrade linux-hwe-5.4Upgrade linux-intel-iotgUpgrade linux-aws-5.4Upgrade linuxUpgrade linux-gcpUpgrade linux-nvidia-tegra-igxUpgrade linux-ibm-5.15Upgrade linux-oracle-5.15Upgrade linux-nvidia-tegraUpgrade linux-ibm-5.4Upgrade linux-oracle-5.4Upgrade linux-nvidia-tegra-5.15Upgrade linux-raspi-5.4Upgrade linux-intel-iot-realtimeUpgrade linux-riscv-5.15Upgrade linux-fipsUpgrade linux-azure-fipsUpgrade linux-lowlatencyUpgrade linux-gkeUpgrade linux-gcp-5.4Upgrade linux-aws-5.15 | Jan 6, 2026 | Jan 2, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 30, 2025 |
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