UBUNTU-CVE-2025-40142

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Disable bottom softirqs as part of spinlockirq on PREEMPTRT sndpcmgrouplockirq acquires a spinlockt and disables interrupts via spinlockirq. This also implicitly disables the handling of softirqs such as TIMERSOFTIRQ. ...

CVE-2025-40146 blk-mq: fix potential deadlock while nr_requests grown

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix potential deadlock while nrrequests grown Allocate and free schedtags while queue is freezed can deadlock1, this is a long term problem, hence allocate memory before freezing queue and free memory after queue is...

CVE-2025-40146

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix potential deadlock while nrrequests grown Allocate and free schedtags while queue is freezed can deadlock1, this is a long term problem, hence allocate memory before freezing queue and free memory after queue is...

CVE-2025-40146

The CVE-2025-40146 entry refers to a Linux kernel issue in the blk-mq subsystem where deadlock can occur as nr_requests grow. The root cause is described as a conflict between allocating/freeing sched_tags while the I/O queue is frozen, which can lead to a deadlock. The published fix involves all...

CVE-2025-40146 blk-mq: fix potential deadlock while nr_requests grown

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix potential deadlock while nrrequests grown Allocate and free schedtags while queue is freezed can deadlock1, this is a long term problem, hence allocate memory before freezing queue and free memory after queue is...

CVE-2025-40142 ALSA: pcm: Disable bottom softirqs as part of spin_lock_irq() on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Disable bottom softirqs as part of spinlockirq on PREEMPTRT sndpcmgrouplockirq acquires a spinlockt and disables interrupts via spinlockirq. This also implicitly disables the handling of softirqs such as TIMERSOFTIRQ. ...

CVE-2025-40142 ALSA: pcm: Disable bottom softirqs as part of spin_lock_irq() on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Disable bottom softirqs as part of spinlockirq on PREEMPTRT sndpcmgrouplockirq acquires a spinlockt and disables interrupts via spinlockirq. This also implicitly disables the handling of softirqs such as TIMERSOFTIRQ. ...

CVE-2025-40142

CVE-2025-40142 affects the Linux kernel’s ALSA PCM path. The function snd_pcm_group_lock_irq() acquires a spinlock_t using spin_lock_irq(), which disables interrupts and implicitly affects softirq handling. On PREEMPT_RT, softirqs are preemptible and spin_lock_irq() does not disable them, allowin...

CVE-2025-40120

Technical details about CVE-2025-40120 are not publicly disclosed in the provided connected documents. The SUSE/OpenVAS entries reference the CVE but do not supply affected products, versions, root cause, or fixes. Monitor for official advisories for specifics.

Linux Distros Unpatched Vulnerability : CVE-2025-40142

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ALSA: pcm: Disable bottom softirqs as part of spinlockirq on PREEMPTRT sndpcmgrouplockirq acquires a spinlockt and disables interrupts via spinlockirq. This als...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990845)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990845 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix idatasem unlock order in ext4indmigrate Fuzzing reports a possible deadlock in...

Linux kernel 安全漏洞

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 potential deadlock when nrrequests grows, which could lead to memory allocation problems...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990849)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990849 advisory. In the Linux kernel, the following vulnerability has been resolved: iouring/rw: fix missing NOWAIT check for ODIRECT start write When iouring starts a write, it'll...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990776)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990776 advisory. In the Linux kernel, the following vulnerability has been resolved: igb: revert rtnllock that causes deadlock The commit 6faee3d4ee8b igb: Add lock to avoid data rac...

Linux kernel 安全漏洞

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 an undisabled bottom soft interrupt on PREEMPTRT, which could lead to a deadlock...

Linux Distros Unpatched Vulnerability : CVE-2025-40146

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - blk-mq: fix potential deadlock while nrrequests grown Allocate and free schedtags while queue is freezed can deadlock1, this is a long term problem, hence...

kernel: bpf: Fix deadlock when freeing cgroup storage

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix deadlock when freeing cgroup storage The following commit bc235cdb423a "bpf: Prevent deadlock from recursive bpftaskstorageget|delete" first introduced deadlock prevention for fentry/fexit programs attaching on...

kernel: Linux kernel (CAN J1939): Denial of Service via deadlock

A flaw was found in the Linux kernel. A local user with low privileges could exploit a deadlock vulnerability in the Controller Area Network CAN bus J1939 protocol implementation. This occurs when specific data transfer and error queue handling events coincide with a network interface going down...

kernel: bpf: avoid holding freeze_mutex during mmap operation

In the Linux kernel, the following vulnerability has been resolved: bpf: avoid holding freezemutex during mmap operation We use map-freezemutex to prevent races between mapfreeze and memory mapping BPF map contents with writable permissions. The way we naively do this means we'll hold freezemutex...

kernel: io_uring/rw: fix missing NOWAIT check for O_DIRECT start write

In the Linux kernel, the following vulnerability has been resolved: iouring/rw: fix missing NOWAIT check for ODIRECT start write When iouring starts a write, it'll call kiocbstartwrite to bump the super block rwsem, preventing any freezes from happening while that write is in-flight. The freeze...