The Quarterly Threat Landscape Report is out. See what attackers are targeting now.Read report
In the Linux kernel, the following vulnerability has been resolved:
loop: Fix use-after-free issues
do_req_filebacked() calls blk_mq_complete_request() synchronously or asynchronously when using asynchronous I/O unless memory allocation fails. Hence, modify loop_handle_cmd() such that it does not dereference 'cmd' nor 'rq' after do_req_filebacked() finished unless we are sure that the request has not yet been completed. This patch fixes the following kernel crash:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000054 Call trace: css_put.42938+0x1c/0x1ac loop_process_work+0xc8c/0xfd4 loop_rootcg_workfn+0x24/0x34 process_one_work+0x244/0x558 worker_thread+0x400/0x8fc kthread+0x16c/0x1e0 ret_from_fork+0x10/0x20
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernelUpgrade python-perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-develUpgrade kernel-headersUpgrade perfUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade perf-debuginfoUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-5.15.104-63.140Upgrade python-perfUpgrade bpftool | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-libbpfUpgrade kernelUpgrade kernel-libbpf-develUpgrade kernel-livepatch-6.1.21-1.45Upgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade bpftoolUpgrade bpftool-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-develUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-headersUpgrade kernel-tools-develUpgrade perfUpgrade python3-perfUpgrade kernel-libbpf-staticUpgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64 | Aug 5, 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-aws-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-nvidia-tegraUpgrade linux-intel-iot-realtimeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-lowlatencyUpgrade linux-oracle-5.15Upgrade linux-ibm-5.15Upgrade linuxUpgrade linux-nvidia-tegra-igxUpgrade linux-intel-iotgUpgrade linux-gkeUpgrade linux-bluefieldUpgrade linux-gcpUpgrade linux-riscv-5.15Upgrade linux-azureUpgrade linux-oracleUpgrade linux-nvidiaUpgrade linux-azure-fdeUpgrade linux-raspiUpgrade linux-awsUpgrade linux-hwe-5.15Upgrade linux-gcp-5.15Upgrade linux-realtimeUpgrade linux-kvmUpgrade linux-ibmUpgrade linux-gkeopUpgrade linux-azure-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-xilinx-zynqmp | May 8, 2025 | May 2, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | May 2, 2025 |
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