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 the post-release reuse of writeback after removal of a device, which could lead to timers accessing freed...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: pdscore: removed the “write-after-free” issue related to clientid. A use-after-free error was encountered during stress testing: Mon Apr 21 21:21:33 2025 BUG: KFENCE: use-after-free write at pdscauxbusdevdel+0xef/0x160 pdscore. M...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: core: flush gadget workqueue after device removal The devicedel function can cause new work to be scheduled in the gadget-workqueue. This issue is observed, for example, with the dwc3 driver, as follows: c devicedel...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: iommu: Fixed a potential memory leak in iopfqueueremovedevice. The iopfqueueremovedevice helper function removes a device from the per-iommu iopf queue when PRI is disabled on the device. It responds to all pending iopf requests...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: PCI: pciehp: Avoid unnecessary device replacement checks The hot removal of nested PCI hotplug ports involves a long-standing race condition that can lead to a deadlock. A parent hotplug port acquires pcilockrescanremove, then...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Wifi: brcmfmac: A NULL pointer dereference occurred in the brcmftxfinalize function. When the device is removed or the kernel module is unloaded, a potential NULL pointer dereference may occur. The following sequence leads to the...

SUSE CVE-2025-37916

In the Linux kernel, the following vulnerability has been resolved: pdscore: remove write-after-free of clientid A use-after-free error popped up in stress testing: Mon Apr 21 21:21:33 2025 BUG: KFENCE: use-after-free write in pdscauxbusdevdel+0xef/0x160 pdscore Mon Apr 21 21:21:33 2025...

DEBIAN-CVE-2025-37916

In the Linux kernel, the following vulnerability has been resolved: pdscore: remove write-after-free of clientid A use-after-free error popped up in stress testing: Mon Apr 21 21:21:33 2025 BUG: KFENCE: use-after-free write in pdscauxbusdevdel+0xef/0x160 pdscore Mon Apr 21 21:21:33 2025...

kernel: wifi: mt76: mt7921e: fix use-after-free in free_irq()

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921e: fix use-after-free in freeirq From commit a304e1b82808 "PATCH Debug shared irqs", there is a test to make sure the shared irq handler should be able to handle the unexpected event after deregistration. For th...

xorg: xwayland: Use-after-free in PlayReleasedEvents()

A use-after-free flaw was found in X.Org and Xwayland. When a device is removed while still frozen, the events queued for that device remain while the device is freed. Replaying the events will cause a use-after-free...

kernel: iommu/s390: Implement blocking domain

In the Linux kernel, the following vulnerability has been resolved: iommu/s390: Implement blocking domain This fixes a crash when surprise hot-unplugging a PCI device. This crash happens because during hot-unplug iommugroupsetdomainnofail attaching the default domain fails when the platform no...

kernel: coresight: Clear the connection field properly

In the Linux kernel, the following vulnerability has been resolved: coresight: Clear the connection field properly coresight devices track their connections output connections and hold a reference to the fwnode. When a device goes away, we walk through the devices on the coresight bus and make su...

kernel: block: fix deadlock between sd_remove & sd_release

In the Linux kernel, the following vulnerability has been resolved: block: fix deadlock between sdremove & sdrelease Our test report the following hung task: 2538.459400 INFO: task "kworker/0:0":7 blocked for more than 188 seconds. 2538.459427 Call trace: 2538.459430 switchto+0x174/0x338...

kernel: iommu/s390: Implement blocking domain

In the Linux kernel, the following vulnerability has been resolved: iommu/s390: Implement blocking domain This fixes a crash when surprise hot-unplugging a PCI device. This crash happens because during hot-unplug iommugroupsetdomainnofail attaching the default domain fails when the platform no...

SUSE CVE-2022-49839

In the Linux kernel, the following vulnerability has been resolved: scsi: scsitransportsas: Fix error handling in sasphyadd If transportadddevice fails in sasphyadd, the kernel will crash trying to delete the device in transportremovedevice called from sasremovehost. Unable to handle kernel NULL...

UBUNTU-CVE-2025-37843

In the Linux kernel, the following vulnerability has been resolved: PCI: pciehp: Avoid unnecessary device replacement check Hot-removal of nested PCI hotplug ports suffers from a long-standing race condition which can lead to a deadlock: A parent hotplug port acquires pcilockrescanremove, then...

CVE-2025-37843

CVE-2025-37843 : In the Linux kernel, a race between parent and child PCI hotplug ports can deadlock during nested PCI hotplug removal. A fix was implemented to avoid extra checks when the hotplug port itself was hot-removed, preventing the deadlock (particularly when removing multiple Thunderbol...

CVE-2025-37843 PCI: pciehp: Avoid unnecessary device replacement check

In the Linux kernel, the following vulnerability has been resolved: PCI: pciehp: Avoid unnecessary device replacement check Hot-removal of nested PCI hotplug ports suffers from a long-standing race condition which can lead to a deadlock: A parent hotplug port acquires pcilockrescanremove, then...

SUSE CVE-2022-49896

In the Linux kernel, the following vulnerability has been resolved: cxl/pmem: Fix cxlpmemregion and cxlmemdev leak When a cxlnvdimm object goes through a -remove event device physically removed, nvdimm-bridge disabled, or nvdimm device disabled, then any associated regions must also be disabled. ...

SUSE CVE-2022-49823

In the Linux kernel, the following vulnerability has been resolved: ata: libata-transport: fix error handling in atatdevadd In atatdevadd, the return value of transportadddevice is not checked. As a result, it causes null-ptr-deref while removing the module, because transportremovedevice is calle...