kernel: s390/vfio-ap: fix memory leak in vfio_ap device driver

In the s390 VFIO-AP driver, memory allocated for the vfiomatrixdev structure is never released during device cleanup. The release callback incorrectly uses devgetdrvdata to locate the object, but since it was never stored there, the function returns NULL and kfree silently accepts it. The correct...

CVE-2021-47480

CVE-2021-47480 affects the Linux kernel SCSI subsystem. The issue arises when releasing a SCSI host: the low-level device driver (LLD) module could be unloaded before the SCSI host is fully released, because shost->hostt is needed during release, leading to a kernel panic (BUG: unable to handl...

DEBIAN-CVE-2021-47385

In the Linux kernel, the following vulnerability has been resolved: hwmon: w83792d Fix NULL pointer dereference by removing unnecessary structure field If driver read val value sufficient for val & 0x08 && !val & 0x80 && val & 0x7 == val 4 & 0x7 from device then Null pointer dereference occurs. I...

SUSE CVE-2024-35991

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Convert spinlock to mutex to lock evl workqueue drainworkqueue cannot be called safely in a spinlocked context due to possible task rescheduling. In the multi-task scenario, calling queuework while drainworkqueue...

CVE-2024-35875 x86/coco: Require seeding RNG with RDRAND on CoCo systems

In the Linux kernel, the following vulnerability has been resolved: x86/coco: Require seeding RNG with RDRAND on CoCo systems There are few uses of CoCo that don't rely on working cryptography and hence a working RNG. Unfortunately, the CoCo threat model means that the VM host cannot be trusted a...

UBUNTU-CVE-2024-35819

In the Linux kernel, the following vulnerability has been resolved: soc: fsl: qbman: Use raw spinlock for cgrlock smpcallfunction always runs its callback in hard IRQ context, even on PREEMPTRT, where spinlocks can sleep. So we need to use a raw spinlock for cgrlock to ensure we aren't waiting on...

UBUNTU-CVE-2023-52655

In the Linux kernel, the following vulnerability has been resolved: usb: aqc111: check packet for fixup for true limit If a device sends a packet that is inbetween 0 and sizeofu64 the value passed to skbtrim as length will wrap around ending up as some very large value. The driver will then proce...

Bkav Home 信息泄露漏洞

Bkav Home is an electronic security software from Bkav Inc. An information disclosure vulnerability exists in Bkav Home v7816 build 2403161130, which originates from a vulnerability that allows an attacker to cause an information disclosure by triggering the 0x222240 IOCTL code in the BkavSDFlt.s...

CVE-2021-47182

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix scsimodesense buffer length handling Several problems exist with scsimodesense buffer length handling: 1 The allocation length field of the MODE SENSE10 command is 16-bits, occupying bytes 7 and 8 of the CDB. With...

CVE-2021-47182

The CVE-2021-47182 entry concerns the Linux kernel scsi_mode_sense() implementation. Affected component: scsi core. Issues: improper handling of the MODE SENSE(10) allocation length field (16-bit, truncating lengths >255) and buffer length adjustments that could corrupt memory when len is too ...

CVE-2021-47182

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix scsimodesense buffer length handling Several problems exist with scsimodesense buffer length handling: 1 The allocation length field of the MODE SENSE10 command is 16-bits, occupying bytes 7 and 8 of the CDB. With...

USN-6701-4 linux-azure vulnerabilities

Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service bluetooth communication. CVE-2023-2002 It was discovered that the NVIDIA Tegra...

UBUNTU-CVE-2024-26807

In the Linux kernel, the following vulnerability has been resolved: Both cadence-quadspi -runtimesuspend and -runtimeresume implementations start with: struct cqspist cqspi = devgetdrvdatadev; struct spicontroller host = devgetdrvdatadev; This obviously cannot be correct, unless "struct cqspist" ...

CVE-2024-26807 spi: cadence-qspi: fix pointer reference in runtime PM hooks

In the Linux kernel, the following vulnerability has been resolved: Both cadence-quadspi -runtimesuspend and -runtimeresume implementations start with: struct cqspist cqspi = devgetdrvdatadev; struct spicontroller host = devgetdrvdatadev; This obviously cannot be correct, unless "struct cqspist" ...

CVE-2024-26745 powerpc/pseries/iommu: IOMMU table is not initialized for kdump over SR-IOV

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries/iommu: IOMMU table is not initialized for kdump over SR-IOV When kdump kernel tries to copy dump data over SR-IOV, LPAR panics due to NULL pointer exception: Kernel attempted to read user page 0 - exploit attempt?...

CVE-2024-26745

CVE-2024-26745 pertains to the Linux kernel on pSeries POWER systems where the IOMMU table is not initialized for kdump over SR-IOV, causing a NULL pointer dereference when the kdump kernel initializes IOMMU/TCEs for SR-IOV devices. The root cause is IOMMU table initialization logic that only con...

CVE-2024-26680

In the Linux kernel, the following vulnerability has been resolved: net: atlantic: Fix DMA mapping for PTP hwts ring Function aqringhwtsrxalloc maps extra AQCFGRXDSDEF bytes for PTP HWTS ring but then generic aqringfree does not take this into account. Create and use a specific function to free...

DEBIAN-CVE-2024-26671

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix IO hang from sbitmap wakeup race In blkmqmarktagwait, addwaitqueue may be re-ordered with the following blkmqgetdrivertag in case of getting driver tag failure. Then in sbitmapqueuewakeup, waitqueueactive may not...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-6702-2)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6702-2 advisory. It was discovered that the NVIDIA Tegra XUSB pad controller driver in the Linux kernel did not properly handle return values in certain error...

Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-6699-1)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6699-1 advisory. Reima Ishii discovered that the nested KVM implementation for Intel x86 processors in the Linux kernel did not properly validate control registers in...