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In the Linux kernel, the following vulnerability has been resolved:
jbd2: fix potential buffer head reference count leak
As in 'jbd2_fc_wait_bufs' if buffer isn't uptodate, will return -EIO without update 'journal->j_fc_off'. But 'jbd2_fc_release_bufs' will release buffer head from ‘j_fc_off - 1’ if 'bh' is NULL will terminal release which will lead to buffer head buffer head reference count leak. To solve above issue, update 'journal->j_fc_off' before return -EIO.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade python-perfUpgrade kernel-livepatch-5.15.75-48.135Upgrade bpftoolUpgrade bpftool-debuginfoUpgrade kernel-tools-develUpgrade perfUpgrade kernel-develUpgrade kernel-livepatch-5.10.155-138.670Upgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64 | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Dec 31, 2025 | Dec 31, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-tools-libsUpgrade python3-perfUpgrade kernelUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 30, 2025 |
| Ubuntu | — | Upgrade linux-gkeopUpgrade linux-azureUpgrade linux-nvidiaUpgrade linux-hwe-5.15Upgrade linux-gcp-5.15Upgrade linux-kvmUpgrade linux-oracle-5.15Upgrade linux-azure-fde-5.15Upgrade linux-ibmUpgrade linux-oracleUpgrade linux-azure-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-azure-fdeUpgrade linux-realtimeUpgrade linux-intel-iotgUpgrade linuxUpgrade linux-raspiUpgrade linux-aws-5.15Upgrade linux-awsUpgrade linux-gcpUpgrade linux-bluefieldUpgrade linux-lowlatency-hwe-5.15Upgrade linux-lowlatencyUpgrade linux-gkeUpgrade linux-riscv-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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