Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a NULL pointer dereference problem in the return value of allocworkqueue in radeoncrtcinit...

PT-2024-21487

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to a deadlock between the fctx lock and the irq lock in the Linux kernel, specifically in the nouveau component. This deadlock is resolved by offloading the processi...

PT-2024-8440 · Linux +4 · Linux Kernel +4

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The vulnerability is related to errors in memory deallocation in the wilc1000 component of the Linux kernel. This issue can cause a denial of service. The problem arises from the...

kernel: drm/vkms: Fix null-ptr-deref in vkms_release()

In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Fix null-ptr-deref in vkmsrelease A null-ptr-deref is triggered when it tries to destroy the workqueue in vkms-output.composerworkq in vkmsrelease. KASAN: null-ptr-deref in range 0x0000000000000118-0x000000000000011f CP...

kernel: ixgbevf: Fix resource leak in ixgbevf_init_module()

In the Linux kernel, the following vulnerability has been resolved: ixgbevf: Fix resource leak in ixgbevfinitmodule ixgbevfinitmodule won't destroy the workqueue created by createsinglethreadworkqueue when pciregisterdriver failed. Add destroyworkqueue in fail path to prevent the resource leak...

kernel: drm/amdgpu: Fix memory leak in hpd_rx_irq_create_workqueue()

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix memory leak in hpdrxirqcreateworkqueue If construction of the array of work queues to handle hpdrxirq offload work fails, we need to unwind. Destroy all the created workqueues and the allocated memory for the...

kernel: ixgbevf: Fix resource leak in ixgbevf_init_module()

In the Linux kernel, the following vulnerability has been resolved: ixgbevf: Fix resource leak in ixgbevfinitmodule ixgbevfinitmodule won't destroy the workqueue created by createsinglethreadworkqueue when pciregisterdriver failed. Add destroyworkqueue in fail path to prevent the resource leak...

kernel: mptcp: fix UaF in listener shutdown

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix UaF in listener shutdown As reported by Christoph after having refactored the passive socket initialization, the mptcp listener shutdown path is prone to an UaF issue. BUG: KASAN: use-after-free in...

kernel: mptcp: use the workqueue to destroy unaccepted sockets

In the Linux kernel, the following vulnerability has been resolved: mptcp: use the workqueue to destroy unaccepted sockets Christoph reported a UaF at token lookup time after having refactored the passive socket initialization part: BUG: KASAN: use-after-free in tokenbucketbusy+0x253/0x260 Read o...

kernel: drm/vkms: Fix null-ptr-deref in vkms_release()

In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Fix null-ptr-deref in vkmsrelease A null-ptr-deref is triggered when it tries to destroy the workqueue in vkms-output.composerworkq in vkmsrelease. KASAN: null-ptr-deref in range 0x0000000000000118-0x000000000000011f CP...

kernel: remoteproc: imx_dsp_rproc: Add mutex protection for workqueue

In the Linux kernel, the following vulnerability has been resolved: remoteproc: imxdsprproc: Add mutex protection for workqueue The workqueue may execute late even after remoteproc is stopped or stopping, some resources rpmsg device and endpoint have been released in rprocstopsubdevices, then...

PT-2025-40111

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's remoteproc subsystem, specifically within the imx dsp rproc component. A race condition can occur where a workqueue executes after the remoteproc has...

SUSE CVE-2023-4134

A use-after-free vulnerability was found in the cyttsp4core driver in the Linux kernel. This issue occurs in the device cleanup routine due to a possible rearming of the watchdogtimer from the workqueue. This could allow a local user to crash the system, causing a denial of service...

UBUNTU-CVE-2023-4134

A use-after-free vulnerability was found in the cyttsp4core driver in the Linux kernel. This issue occurs in the device cleanup routine due to a possible rearming of the watchdogtimer from the workqueue. This could allow a local user to crash the system, causing a denial of service...

CVE-2023-4134

A use-after-free vulnerability was found in the cyttsp4core driver in the Linux kernel. This issue occurs in the device cleanup routine due to a possible rearming of the watchdogtimer from the workqueue. This could allow a local user to crash the system, causing a denial of service...

kernel security and bug fix update

5.14.0-284.18.12 - cifs: fix wrong unlock before return from cifstreeconnect - docs: Remove the unnecessary unicode character - perf vendor events intel: Refresh ivytown metrics and events - perf vendor events: Update Intel ivytown - perf vendor events intel: Refresh jaketown metrics and events -...

PT-2025-54155

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the /dev/vtpmx creation process within the tpm vtpm proxy driver. The /dev/vtpmx device becomes visible before the workqueue is initialized, potentially leadin...

Important: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as...

kernel: RDMA/core: Fix null-ptr-deref in ib_core_cleanup()

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix null-ptr-deref in ibcorecleanup KASAN reported a null-ptr-deref error: KASAN: null-ptr-deref in range 0x0000000000000118-0x000000000000011f CPU: 1 PID: 379 Hardware name: QEMU Standard PC i440FX + PIIX, 1996 RIP:...

kernel: sched/core: Do not requeue task on CPU excluded from cpus_mask

In the Linux kernel, the following vulnerability has been resolved: sched/core: Do not requeue task on CPU excluded from cpusmask The following warning was triggered on a large machine early in boot on a distribution kernel but the same problem should also affect mainline. WARNING: CPU: 439 PID: ...