In the Linux kernel, the following vulnerability has been resolved:
fs: quota: create dedicated workqueue for quota_release_work
There is a kernel panic due to WARN_ONCE when panic_on_warn is set.
This issue occurs when writeback is triggered due to sync call for an opened file(ie, writeback reason is WB_REASON_SYNC). When f2fs balance is needed at sync path, flush for quota_release_work is triggered. By default quota_release_work is queued to "events_unbound" queue which does not have WQ_MEM_RECLAIM flag. During f2fs balance "writeback" workqueue tries to flush quota_release_work causing kernel panic due to MEM_RECLAIM flag mismatch errors.
This patch creates dedicated workqueue with WQ_MEM_RECLAIM flag for work quota_release_work.
------------[ cut here ]------------ WARNING: CPU: 4 PID: 14867 at kernel/workqueue.c:3721 check_flush_dependency+0x13c/0x148 Call trace: check_flush_dependency+0x13c/0x148 __flush_work+0xd0/0x398 flush_delayed_work+0x44/0x5c dquot_writeback_dquots+0x54/0x318 f2fs_do_quota_sync+0xb8/0x1a8 f2fs_write_checkpoint+0x3cc/0x99c f2fs_gc+0x190/0x750 f2fs_balance_fs+0x110/0x168 f2fs_write_single_data_page+0x474/0x7dc f2fs_write_data_pages+0x7d0/0xd0c do_writepages+0xe0/0x2f4 __writeback_single_inode+0x44/0x4ac writeback_sb_inodes+0x30c/0x538 wb_writeback+0xf4/0x440 wb_workfn+0x128/0x5d4 process_scheduled_works+0x1c4/0x45c worker_thread+0x32c/0x3e8 kthread+0x11c/0x1b0 ret_from_fork+0x10/0x20 Kernel panic - not syncing: kernel: panic_on_warn set ...
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade python3-perf6.12-debuginfoUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel6.12-libbpf-staticUpgrade bpftool6.12Upgrade kernel6.12-libbpfUpgrade perf6.12Upgrade kernel6.12-tools-debuginfoUpgrade bpftool6.12-debuginfoUpgrade kernel6.12-develUpgrade kernel6.12Upgrade kernel-livepatch-6.12.55-74.119Upgrade perf6.12-debuginfoUpgrade kernel6.12-tools-develUpgrade kernel6.12-headersUpgrade python3-perf6.12Upgrade kernel6.12-toolsUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-modules-extraUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.12-debuginfoUpgrade kernel6.12-modules-extra-common | Dec 9, 2025 | Nov 12, 2025 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp11 | — | Upgrade python3-perfUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernel | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-toolsUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernelUpgrade python3-perfUpgrade kernel-abi-stablelists | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernelUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-tools-libs | Feb 3, 2026 | Feb 2, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Nov 12, 2025 |
| Ubuntu | — | Upgrade linux-image-gcp-64kUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-nvidiaUpgrade linux-image-raspi-6.8Upgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-nvidia-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-generic-6.8Upgrade linux-image-gke-64k-6.8Upgrade linux-image-oracle-6.8Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.17.0-14-genericUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-gkeopUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-genericUpgrade linux-image-raspi-6.17Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-virtual-6.17Upgrade linux-image-oem-22.04cUpgrade linux-image-gke-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-gkeop-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-aws-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-raspiUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-generic-6.17Upgrade linux-image-generic-64kUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-virtual-6.8Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-azureUpgrade linux-image-ibm-classicUpgrade linux-image-ibmUpgrade linux-image-generic-64k-6.17Upgrade linux-image-6.8.0-1050-awsUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-gcp-fipsUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-gke-64kUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-aws-6.17Upgrade linux-image-aws-64k-6.17Upgrade linux-image-azure-6.17Upgrade linux-image-oem-22.04Upgrade linux-image-lowlatencyUpgrade linux-image-xilinx-6.8Upgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-realtime-6.17Upgrade linux-image-ibm-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-oracle-64kUpgrade linux-image-realtime-6.8.1Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-6.17.0-1007-awsUpgrade linux-image-gkeUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-virtualUpgrade linux-image-raspi-realtimeUpgrade linux-image-fipsUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-azure-fips-6.8Upgrade linux-image-kvmUpgrade linux-image-gcp-6.17Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-aws-lts-24.04Upgrade linux-image-aws-fips-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-realtimeUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-xilinxUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-gcpUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-oem-6.17Upgrade linux-image-aws-fipsUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-oem-22.04dUpgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-gcp-6.8Upgrade linux-image-oracle-6.17Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-fips-6.8Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-generic-64k-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-awsUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-aws-64kUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-oracle | Feb 13, 2026 | Feb 12, 2026 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub