Threats Tagged 'cve-2025-68745'

Multiple security vulnerabilities affecting the Real Time Linux Kernel (kernel-rt) packages in Red Hat Enterprise Linux 8 have been addressed. These include denial of service, use-after-free, race conditions, and validation issues in various kernel subsystems such as SCSI drivers, SCTP, netfilter, and TIPC. The update also includes bug fixes and enhancements to improve stability and security. Red Hat has released patches for these issues and recommends applying the update and rebooting the system to ensure protection.

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Clear cmds after chip reset Commit aefed3e5548f ("scsi: qla2xxx: target: Fix offline port handling and host reset handling") caused two problems: 1. Commands sent to FW, after chip reset got stuck and never freed as FW is not going to respond to them anymore. 2. BUG_ON(cmd->sg_mapped) in qlt_free_cmd(). Commit 26f9ce53817a ("scsi: qla2xxx: Fix missed DMA unmap for aborted commands") attempted to fix this, but introduced another bug under different circumstances when two different CPUs were racing to call qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in dma_unmap_sg_attrs(). So revert "scsi: qla2xxx: Fix missed DMA unmap for aborted commands" and partially revert "scsi: qla2xxx: target: Fix offline port handling and host reset handling" at __qla2x00_abort_all_cmds.