CVE-2023-54231

In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix memory leak in wxsetuprxresources When wxallocpagepool failed in wxsetuprxresources, it doesn't release DMA buffer. Add dmafreecoherent in the error path to release the DMA buffer...

UBUNTU-CVE-2023-54231

In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix memory leak in wxsetuprxresources When wxallocpagepool failed in wxsetuprxresources, it doesn't release DMA buffer. Add dmafreecoherent in the error path to release the DMA buffer...

CVE-2022-50819

In the Linux kernel, the following vulnerability has been resolved: udmabuf: Set ubuf-sg = NULL if the creation of sg table fails When userspace tries to map the dmabuf and if for some reason e.g. OOM the creation of the sg table fails, ubuf-sg needs to be set to NULL. Otherwise, when the userspa...

CVE-2022-50874 RDMA/erdma: Fix refcount leak in erdma_mmap

In the Linux kernel, the following vulnerability has been resolved: RDMA/erdma: Fix refcount leak in erdmammap rdmausermmapentryget take reference, we should release it when not need anymore, add the missing rdmausermmapentryput in the error path to fix it...

CVE-2023-54257 net: macb: fix a memory corruption in extended buffer descriptor mode

In the Linux kernel, the following vulnerability has been resolved: net: macb: fix a memory corruption in extended buffer descriptor mode For quite some time we were chasing a bug which looked like a sudden permanent failure of networking and mmc on some of our devices. The bug was very sensitive...

CVE-2023-54257

CVE-2023-54257 affects the Linux kernel net/macb driver. The issue is a memory corruption in extended buffer descriptor mode caused by the DMA subsystem: the driver attempted to free DMA memory it had not allocated, as observed when enabling CONFIG_DMA_API_DEBUG. The problem was reproduced via a ...

CVE-2023-54255

CVE-2023-54255 affects the Linux kernel with SH3/SH4/SH4A DMAC implementations. The vulnerability arises from incorrect DMA channel offset calculations when multiple DMA channels are distributed across up to two DMAC modules, which can trigger kernel panics. The described fix rewrites dma_base_ad...

CVE-2023-54255 sh: dma: Fix DMA channel offset calculation

In the Linux kernel, the following vulnerability has been resolved: sh: dma: Fix DMA channel offset calculation Various SoCs of the SH3, SH4 and SH4A family, which use this driver, feature a differing number of DMA channels, which can be distributed between up to two DMAC modules. The existing...

CVE-2023-54231 net: libwx: fix memory leak in wx_setup_rx_resources

In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix memory leak in wxsetuprxresources When wxallocpagepool failed in wxsetuprxresources, it doesn't release DMA buffer. Add dmafreecoherent in the error path to release the DMA buffer...

CVE-2023-54231

CVE-2023-54231 affects the Linux kernel component handling the libwx RX path. The vulnerability arises in wx_setup_rx_resources: if wx_alloc_page_pool() fails, the code path does not release the allocated DMA buffer, causing a memory leak. The fix adds a dma_free_coherent() call in the error path...

CVE-2022-50819 udmabuf: Set ubuf->sg = NULL if the creation of sg table fails

In the Linux kernel, the following vulnerability has been resolved: udmabuf: Set ubuf-sg = NULL if the creation of sg table fails When userspace tries to map the dmabuf and if for some reason e.g. OOM the creation of the sg table fails, ubuf-sg needs to be set to NULL. Otherwise, when the userspa...

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 miscalculation of DMA channel offsets, which could cause the kernel to crash...

PT-2025-54084

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the DMA channel offset calculation for SoCs of the SH3, SH4, and SH4A families. The existing implementation incorrectly calculates channel offsets,...

PT-2025-54017

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak exists in the dmaengine subsystem, specifically within the apple-admac component. The issue occurs during the termination process where the current tx descriptor is not...

PT-2025-54110

In the Linux kernel, the following vulnerability has been resolved: RDMA/erdma: Fix refcount leak in erdma mmap rdma user mmap entry get take reference, we should release it when not need anymore, add the missing rdma user mmap entry put in the error path to fix it...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992559)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992559 advisory. In the Linux kernel, the following vulnerability has been resolved: iavf: Fix adminq error handling iavfallocasqbufs/iavfallocarqbufs allocates with dmaalloccoherent...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992491)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992491 advisory. In the Linux kernel, the following vulnerability has been resolved: intelth: msu: Fix vmalloced buffers After commit f5ff79fddf0e dma-mapping: remove CONFIGDMAREMAP...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992342)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992342 advisory. In the Linux kernel, the following vulnerability has been resolved: vfio/type1: prevent underflow of lockedvm via exec When a vfio container is preserved across exec...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992353)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992353 advisory. In the Linux kernel, the following vulnerability has been resolved: dmaengine: sf-pdma: Add multithread support for a DMA channel When we get a DMA channel and try t...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992437)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992437 advisory. In the Linux kernel, the following vulnerability has been resolved: tty: serial: fsllpuart: disable dma rx/tx use flags in lpuartdmashutdown lpuartdmashutdown tears...