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: 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...

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: 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...

MGASA-2025-0270 Updated xen packages fix security vulnerabilities

Double unlock in x86 guest IRQ handling. CVE-2024-31143 Xapi: Metadata injection attack against backup/restore functionality. CVE-2024-31144 Error handling in x86 IOMMU identity mapping. CVE-2024-31145 PCI device pass-through with shared resources. CVE-2024-31146 x86: Deadlock in vlapicerror...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990399)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990399 advisory. In the Linux kernel, the following vulnerability has been resolved: drivers: usb: host: Fix deadlock in oxubussuspend There is a deadlock in oxubussuspend, which is...

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-2025-990459)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990459 advisory. In the Linux kernel, the following vulnerability has been resolved: drivers: tty: serial: Fix deadlock in sa1100settermios There is a deadlock in sa1100settermios,...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990464)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990464 advisory. In the Linux kernel, the following vulnerability has been resolved: scsi: Revert scsi: fcoe: Fix potential deadlock on &fip-ctlrlock This reverts commit...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990622)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990622 advisory. In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Return error code in mdp5mixerrelease when deadlock is detected There is a...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990555)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990555 advisory. In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192u: Fix deadlock in ieee80211beaconsstop There is a deadlock in...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990573)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990573 advisory. In the Linux kernel, the following vulnerability has been resolved: ASoC: rt5645: Fix deadlock in rt5645jackdetectwork There is a path in rt5645jackdetectwork, where...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990634)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990634 advisory. In the Linux kernel, the following vulnerability has been resolved: PCI: Avoid pcidevlock AB/BA deadlock with sriovnumvfsstore The sysfs sriovnumvfsstore path acquir...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990479)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990479 advisory. In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Return error code in mdp5piperelease when deadlock is detected mdp5getglobalstate...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990422)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990422 advisory. In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix deadlock that raid5d wait for itself to clear MDSBCHANGEPENDING Xiao reported that...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989789)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989789 advisory. In the Linux kernel, the following vulnerability has been resolved: tty: fix deadlock caused by calling printk under ttyport-lock ptywrite invokes kmalloc which may...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-989542)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989542 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix deadlock in nilfscountfreeblocks A semaphore deadlock can occur if nilfsgetblock...