kernel: RDMA/umem: Fix double dma_buf_unpin in failure path

A flaw was found in the Linux kernel's RDMA/umem subsystem. A memory management error, specifically a double unpin of a dmabuf, can occur in a failure path during dmabuf pinning operations. This vulnerability could lead to system instability or a crash, resulting in a Denial of Service DoS...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: PCI: Endpoint: pci-epf-test: Add a NULL check for DMA channels before releasing them. The fields dmachantx and dmachanrx of the struct pciepftest can be NULL even after EPF initialization. Therefore, it is prudent to check that...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: intelth: msu: Fix for vmalloced buffers After committing the change f5ff79fddf0e “dma-mapping: remove CONFIGDMAREMAP”, there is a possibility that DMA buffers may be allocated using vmalloc, which can affect the MMAP mapping code...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Ensure that dma-fences comply with safe access rules. The xe mechanism can free some of the data pointed to by the dma-fences it exports. Notably, the “timeline name” can be freed if the user space closes the associated...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fixed the issue where the dmabuf was not unpined in the error-prone preparefb function. Corrected the error handling in preparefb to prevent resource leaks when an error occurs...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: virtio-blk: an implicit overflow issue with virtiomaxdmasize has been fixed. The following code involves an implicit conversion from sizet to u32: u32maxsize = sizetvirtiomaxdmasizevdev; This may lead to an overflow situation; fo...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/panthor: Fix for dma-fence safe access rules Commit 506aa8b02a8d6 “dma-fence: Add safe access helpers and document the rules” details the dma-fence safe access rules. The most common issue is that...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dma-buf: heaps: Fixed an issue where the CMA heap fault handler made a mistake in calculating the boundary. Until the VMDONTEXPAND flag was added in commit 1c1914d6e8c6 “dma-buf: heaps: Don’t track CMA dma-buf pages under RssFile...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/i915: mark requests for GuC virtual engines to avoid use-after-free. References to i915requests may be trapped by the user space within a syncfile or dmabuf dma-resv and held indefinitely across different processes. To counte...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: i3c: mipi-i3c-hci: Correct handling of RINGCTRLABORT in DMA dequeue. The logic used to abort the DMA ring contains several flaws: 1. The driver issues an abort unconditionally, even when the ring has already stopped. 2. The...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: “Revert ‘drm/gem-dma: Use dmabuf from GEM object instance’” This change is reflected in commit e8afa1557f4f963c9a511bd2c6074a941c308685. The dmabuf field in the struct drmgemobject is not stable throughout the lifetime of the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: habanalabs: fixed UAF in exportdmabuf Once we insert a file reference into the descriptor table, another thread may close that file. This is fine if all we’re doing is returning the descriptor to userland—it’s a race condition, b...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: atmel: The issue with reference counting has been fixed in atmelnandcontrollerinit. The reference counting issue occurs in several error handling paths involving an object with a refcount, namely “nc-dmac”. In these...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: stmmac: fixed an issue with left shift overflow in DMA queues When the queue number is greater than 4, left shift overflows due to the 32-bit integer variable used in calculations. The mask calculation for MTLRXQDMAMAP1 i...

Astra Linux – Vulnerability in Qemu

A reachable assertion issue was detected in the USB EHCI emulation code of QEMU. This issue can occur during the processing of USB requests due to a faulty handling of the DMA memory map. A malicious privileged user within the guest environment may exploit this flaw to send invalid USB requests,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: spi: uniphier: fix reference count leak in uniphierspiprobe The issue occurs in several error paths within uniphierspiprobe. When either dmagetslavecaps or devmspiregistermaster returns an error code, the function forgets to...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: dmaengine: qcom: bamdma: Fixed error handling for num-channels/ees When there is no clock specified in the device tree, there is no way to ensure that BAM is enabled. This often occurs for remotely controlled or remotely power...

kernel: iommu: disable SVA when CONFIG_X86 is set

A security vulnerability was found in the Linux kernel's IOMMU Shared Virtual Addressing SVA implementation on x86 architecture. When SVA is enabled, the IOMMU caches kernel page table entries. Since the kernel lacks a mechanism to notify the IOMMU when kernel page table pages are freed and...

SUSE CVE-2026-46296

In the Linux kernel, the following vulnerability has been resolved: spi: s3c64xx: fix NULL-deref on driver unbind A change moving DMA channel allocation from probe back to s3c64xxspipreparetransfer failed to remove the corresponding deallocation from remove. Drop the bogus DMA channel release fro...

SUSE CVE-2026-46301

In the Linux kernel, the following vulnerability has been resolved: spi: topcliff-pch: fix use-after-free on unbind Give the driver a chance to flush its queue before releasing the DMA buffers on driver unbind...