copyfail-exploit

Copy Fail · CVE-2026-31431 Linuxカーネル4.11からパッチ適用済みの6.18リリース未満までのローカル権限昇格。 このバグはカーネルのAFALGソケットインターフェースに存在し、具体的にはauthencesnがインプレースAEAD復号中にscatter-gatherリストを処理する方法に起因します。結果として、権限のないユーザーが任意の読み取り可能なファイルのページキャッシュ内の4バイトを一度に上書きできます。...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: gadget: Fix looping of queued SG entries The value of dwc3request-numqueuedsgs is decremented upon completion. If a partially completed request is processed, then dwc3request-numqueuedsgs no longer reflects the total...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fixed the issue with the ib block iterator counter overflow. When registering a new DMA MR after selecting the best aligned page size for it, we iterate over the given sglist to split each entry into smaller, aligned D...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Set the correct AMDGPU sg segment limitation. The driver needs to set the correct maxsegmentsize; otherwise, debugdmamapsg will complain about the over-mapping of the AMDGPU sg length as follows: WARNING: CPU: 6 PID:...

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

In the Linux kernel, the following vulnerabilities have been resolved: net/bnx2x: Prevent access to a freed page in pagepool Fixed a race condition that could lead to system crashes during EEH error handling During EEH error recovery, the bnx2x driver’s transmit timeout logic could create a race...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: crypto: safexcel – Added error handling for dmamapsg calls The macro dmamapsg function may return 0 in the event of an error. This patch enables checks in case of a macro failure and ensures that previously mapped buffers are...

CVE-2026-89515

A flaw was found in the Linux kernel's SCSI core component. When processing data transfers using scatter-gather lists, the system does not properly initialize padding bytes for unaligned data elements. This can result in the exposure of uninitialized memory, potentially allowing a local attacker ...

CVE-2026-80748 mmc: loongson2: Fix sg iteration in data reorder functions

In the Linux kernel, the following vulnerability has been resolved: mmc: loongson2: Fix sg iteration in data reorder functions In ls2k0500mmcreordercmddata and ls2k2000mmcreordercmddata, the foreachsg macro already iterates over the scatterlist entries, with 'sg' pointing to the current entry...

CVE-2026-74678

A flaw was found in the Linux kernel's ax88179178a USB network driver. When the network interface has scatter-gather SG enabled and a packet linearization operation fails, the system fails to free the associated memory buffer. This oversight leads to a memory leak, which could be exploited by an...

EUVD-2026-53777

In the Linux kernel, the following vulnerability has been resolved: dma-buf/udmabuf: skip redundant cpu sync to fix cacheline EEXIST warning When CONFIGDMAAPIDEBUGSG is enabled, importing a udmabuf into a DRM driver e.g. amdgpu for video playback in GNOME Videos / Showtime triggers a spurious...

PT-2026-68423

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the dma-buf/udmabuf component where importing a udmabuf into a DRM driver triggers a spurious cacheline tracking warning when CONFIG DMA API DEBUG SG is enabled. This...

RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg

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SUSE CVE-2026-64464

In the Linux kernel, the following vulnerability has been resolved: xhci: sideband: fix ring sg table pages leak xhciringtosgtable allocates a temporary pages array and uses it to build the returned sgtable with sgalloctablefrompages. The error paths free the pages array, but the success path...

CVE-2026-64464

In the Linux kernel, the following vulnerability has been resolved: xhci: sideband: fix ring sg table pages leak xhciringtosgtable allocates a temporary pages array and uses it to build the returned sgtable with sgalloctablefrompages. The error paths free the pages array, but the success path...

CVE-2026-64464 xhci: sideband: fix ring sg table pages leak

In the Linux kernel, the following vulnerability has been resolved: xhci: sideband: fix ring sg table pages leak xhciringtosgtable allocates a temporary pages array and uses it to build the returned sgtable with sgalloctablefrompages. The error paths free the pages array, but the success path...

CVE-2026-64464

Consolidated details show CVE-2026-64464 affects the Linux kernel xhci sideband path: xhci_ring_to_sgtable() allocates a temporary pages array used to build an sg_table via sg_alloc_table_from_pages(). On success, the temporary array isn’t freed, causing a leak each time a sideband client uses an...

CVE-2026-64269

In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdmawritesg When the server answers an RTRS READ, rdmawritesg builds the source scatter/gather entry for the IBWRRDMAWRITE that returns data to the peer. Its length is taken...

CVE-2026-64019

A flaw was found in the Linux kernel's NVMe Non-Volatile Memory Express PCI Peripheral Component Interconnect driver. This vulnerability occurs due to a leak in the Direct Memory Access DMA mapping during data setup operations. Specifically, the system fails to properly unmap DMA resources when...

SUSE CVE-2026-64124

In the Linux kernel, the following vulnerability has been resolved: net: devmem: reject dma-buf bind with non-page-aligned size or SG length netdevmembinddmabuf trusts dmabuf-size and sgdmalen to be PAGESIZE multiples without checking: - txvec is sized dmabuf-size / PAGESIZE, and netdevmemgetniov...

CVE-2026-64124

A flaw was found in the Linux kernel's network device memory net: devmem component. This vulnerability allows an attacker to trigger an out-of-bounds read by providing specially crafted Direct Memory Access DMA buffers with non-page-aligned sizes or Scatter-Gather SG list lengths. This could lead...