CVE-2025-68202

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix unsafe locking in the scxdumpstate For built with CONFIGPREEMPTRT=y kernels, the dumplock will be converted sleepable spinlock and not disable-irq, so the following scenarios occur: inconsistent IN-HARDIRQ-W -...

UBUNTU-CVE-2025-68178

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix possible deadlock while configuring policy Following deadlock can be triggered easily by lockdep: WARNING: possible circular locking dependency detected 6.17.0-rc3-00124-ga12c2658ced0 1665 Not tainted...

UBUNTU-CVE-2025-68202

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix unsafe locking in the scxdumpstate For built with CONFIGPREEMPTRT=y kernels, the dumplock will be converted sleepable spinlock and not disable-irq, so the following scenarios occur: inconsistent IN-HARDIRQ-W -...

CVE-2025-68223 drm/radeon: delete radeon_fence_process in is_signaled, no deadlock

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: delete radeonfenceprocess in issignaled, no deadlock Delete the attempt to progress the queue when checking if fence is signaled. This avoids deadlock. dma-fenceops::signaled can be called with the fence lock in unkno...

CVE-2025-68223

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: delete radeonfenceprocess in issignaled, no deadlock Delete the attempt to progress the queue when checking if fence is signaled. This avoids deadlock. dma-fenceops::signaled can be called with the fence lock in unkno...

CVE-2025-68223

CVE-2025-68223 concerns the Linux kernel code path for DRM/Radeon fence handling. The fix removes an attempted forward progress on the queue inside is_signaled, preventing a potential self-deadlock when the fence lock also serves as the wait-queue lock. The underlying issue was that dma-fence_ops...

CVE-2025-68223 drm/radeon: delete radeon_fence_process in is_signaled, no deadlock

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: delete radeonfenceprocess in issignaled, no deadlock Delete the attempt to progress the queue when checking if fence is signaled. This avoids deadlock. dma-fenceops::signaled can be called with the fence lock in unkno...

CVE-2025-68218

CVE-2025-68218 : Linux kernel vulnerability in the nvme-multipath path. The deadlock risk arises from dependency among disk_open_mutex, kblockd workqueue, and partition_scan_work. The fix cuts the dependency by executing partition_scan_work through the nvme_workqueue (nvme_wq) instead of the kblo...

CVE-2025-68218 nvme-multipath: fix lockdep WARN due to partition scan work

In the Linux kernel, the following vulnerability has been resolved: nvme-multipath: fix lockdep WARN due to partition scan work Blktests test cases nvme/014, 057 and 058 fail occasionally due to a lockdep WARN. As reported in the Closes tag URL, the WARN indicates that a deadlock can happen due t...

CVE-2025-68218 nvme-multipath: fix lockdep WARN due to partition scan work

In the Linux kernel, the following vulnerability has been resolved: nvme-multipath: fix lockdep WARN due to partition scan work Blktests test cases nvme/014, 057 and 058 fail occasionally due to a lockdep WARN. As reported in the Closes tag URL, the WARN indicates that a deadlock can happen due t...

CVE-2025-68203 drm/amdgpu: fix lock warning in amdgpu_userq_fence_driver_process

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix lock warning in amdgpuuserqfencedriverprocess Fix a potential deadlock caused by inconsistent spinlock usage between interrupt and process contexts in the userq fence driver. The issue occurs when...

CVE-2025-68202 sched_ext: Fix unsafe locking in the scx_dump_state()

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix unsafe locking in the scxdumpstate For built with CONFIGPREEMPTRT=y kernels, the dumplock will be converted sleepable spinlock and not disable-irq, so the following scenarios occur: inconsistent IN-HARDIRQ-W -...

CVE-2025-68202 sched_ext: Fix unsafe locking in the scx_dump_state()

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix unsafe locking in the scxdumpstate For built with CONFIGPREEMPTRT=y kernels, the dumplock will be converted sleepable spinlock and not disable-irq, so the following scenarios occur: inconsistent IN-HARDIRQ-W -...

CVE-2025-68202

Summary of CVE-2025-68202 (Linux kernel) : The issue is a locking defect in sched_ext’s scx_dump_state() that could lead to a deadlock under PREEMPT_RT configurations. The root cause is unsafe locking where a sleepable spinlock (dump_lock) could be taken while interrupts are active, creating a po...

CVE-2025-68178 blk-cgroup: fix possible deadlock while configuring policy

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix possible deadlock while configuring policy Following deadlock can be triggered easily by lockdep: WARNING: possible circular locking dependency detected 6.17.0-rc3-00124-ga12c2658ced0 1665 Not tainted...

CVE-2025-68178

CVE-2025-68178 involves a Linux kernel deadlock in blk-cgroup configuration. The issue stems from locking order: blk_queue_enter() is taken with rq_qos_mutex held in blkg_conf_prep(), while queue freezing occurs with rq_qos_mutex held elsewhere. The dependency chain: sysfs_lock -> rq_qos_mutex...

CVE-2025-68178 blk-cgroup: fix possible deadlock while configuring policy

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix possible deadlock while configuring policy Following deadlock can be triggered easily by lockdep: WARNING: possible circular locking dependency detected 6.17.0-rc3-00124-ga12c2658ced0 1665 Not tainted...

CVE-2025-68169 netpoll: Fix deadlock in memory allocation under spinlock

In the Linux kernel, the following vulnerability has been resolved: netpoll: Fix deadlock in memory allocation under spinlock Fix a AA deadlock in refillskbs where memory allocation while holding skbpool-lock can trigger a recursive lock acquisition attempt. The deadlock scenario occurs when the...

CVE-2025-68169

CVE-2025-68169 affects the Linux kernel where a deadlock can occur in netpoll when memory allocation happens under a spinlock in refill_skbs(). Under memory pressure, refill_skbs() holds skb_pool->lock, then alloc_skb() may fail and trigger slab_out_of_memory(), leading to printk() which can i...

CVE-2025-68169 netpoll: Fix deadlock in memory allocation under spinlock

In the Linux kernel, the following vulnerability has been resolved: netpoll: Fix deadlock in memory allocation under spinlock Fix a AA deadlock in refillskbs where memory allocation while holding skbpool-lock can trigger a recursive lock acquisition attempt. The deadlock scenario occurs when the...