UBUNTU-CVE-2025-40196

In the Linux kernel, the following vulnerability has been resolved: fs: quota: create dedicated workqueue for quotareleasework There is a kernel panic due to WARNONCE when paniconwarn is set. This issue occurs when writeback is triggered due to sync call for an opened fileie, writeback reason is...

CVE-2025-40196

CVE-2025-40196 concerns the Linux kernel quota subsystem. A writeback-triggered flush could trigger a kernel panic due to MEM_RECLAIM flag mismatch when quota_release_work runs on the non MEM_RECLAIM queue. The patch adds a dedicated workqueue with the WQ_MEM_RECLAIM flag for quota_release_work t...

CVE-2025-40196 fs: quota: create dedicated workqueue for quota_release_work

In the Linux kernel, the following vulnerability has been resolved: fs: quota: create dedicated workqueue for quotareleasework There is a kernel panic due to WARNONCE when paniconwarn is set. This issue occurs when writeback is triggered due to sync call for an opened fileie, writeback reason is...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990898)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990898 advisory. In the Linux kernel, the following vulnerability has been resolved: serial: max3100: Lock port-lock when calling uarthandlectschange uarthandlectschange has to be...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990790)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990790 advisory. In the Linux kernel, the following vulnerability has been resolved: net: ena: Fix error handling in enainit The enainit won't destroy workqueue created by...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990825)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990825 advisory. In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fix WARNING:atkernel/workqueue.c:checkflushdependency In the commit aee2424246f9...

kernel: workqueue: Put the pwq after detaching the rescuer from the pool

A vulnerability was found in the Linux kernel's work queue subsystem, which manages background task execution. The issue stems from improper handling of the "rescuer" thread during the cleanup of unbound work queues...

kernel: idpf: convert workqueues to unbound

In the Linux kernel, the following vulnerability has been resolved: idpf: convert workqueues to unbound When a workqueue is created with WQUNBOUND, its work items are served by special worker-pools, whose host workers are not bound to any specific CPU. In the default configuration i.e. when...

kernel: usb: typec: ucsi: displayport: Fix NULL pointer access

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: displayport: Fix NULL pointer access This patch ensures that the UCSI driver waits for all pending tasks in the ucsidisplayportwork workqueue to finish executing before proceeding with the partner removal...

kernel: acct: perform last write from workqueue

In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In 1 it was reported that the acct2 system call can be used to trigger NULL deref in cases where it is set to write to a file that triggers an internal lookup. This can e.g., happen when...

kernel: workqueue: Put the pwq after detaching the rescuer from the pool

A vulnerability was found in the Linux kernel's work queue subsystem, which manages background task execution. The issue stems from improper handling of the "rescuer" thread during the cleanup of unbound work queues...

kernel: dmaengine: idxd: Check availability of workqueue allocated by idxd wq driver before using

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Check availability of workqueue allocated by idxd wq driver before using Running IDXD workloads in a container with the /dev directory mounted can trigger a call trace or even a kernel panic when the parent proce...

kernel: usb: typec: ucsi: displayport: Fix NULL pointer access

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: displayport: Fix NULL pointer access This patch ensures that the UCSI driver waits for all pending tasks in the ucsidisplayportwork workqueue to finish executing before proceeding with the partner removal...

kernel: acct: perform last write from workqueue

In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In 1 it was reported that the acct2 system call can be used to trigger NULL deref in cases where it is set to write to a file that triggers an internal lookup. This can e.g., happen when...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990546)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990546 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: cancel all works upon hciunregisterdev syzbot is reporting that calling...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990439)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990439 advisory. In the Linux kernel, the following vulnerability has been resolved: hid: cp2112: Fix duplicate workqueue initialization Previously the cp2112 driver called...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990568)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990568 advisory. In the Linux kernel, the following vulnerability has been resolved: locking/wwmutex/test: Fix potential workqueue corruption In some cases running with the...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988964)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988964 advisory. In the Linux kernel, the following vulnerability has been resolved: hid: cp2112: Fix duplicate workqueue initialization Previously the cp2112 driver called...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989272)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989272 advisory. In the Linux kernel, the following vulnerability has been resolved: locking/wwmutex/test: Fix potential workqueue corruption In some cases running with the...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988708)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988708 advisory. In the Linux kernel, the following vulnerability has been resolved: efi: fix NULL-deref in init error path In cases where runtime services are not supported or have...