Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: udmabuf: Set the DMA mask for the udmabuf device v2 If the DMA mask is not set explicitly, the following warning occurs when the userspace attempts to access the dma-buf via the CPU, as reported by syzbot: WARNING: CPU: 1 PID: 35...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: wcd934x: Properly handles channel mapping lists. Currently, each channel is added as a list to the dai channel list. However, there is a risk of adding the same channel to multiple dai channel lists, which could lea...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fixed NULL page-mapping dereference in pageissecretmem Checked for a NULL page-mapping before dereferencing the mapping in pageissecretmem, as the page’s mapping can be nullified while gup is running, for example, b...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/msm: Fixed null pointer dereferencing without IOMMU. Check whether ‘aspace’ is set before using it, as it will remain null without IOMMU, especially on devices like msm8974...

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: net: lltemac: The function platformgetresource was replaced with the function devmplatformioremapresourcebyname. This replacement occurs because the function platformgetresource is called using 0 as its name. This issue ultimatel...

Astra Linux – Vulnerability in xorg-server

A vulnerability was discovered in X.Org. This security flaw arises because the XkbCopyNames function left a dangling pointer pointing to freed memory, allowing for out-of-bounds memory access during subsequent XkbGetKbdByName requests. This issue can lead to local privileges escalation on systems...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Firmware: qcom: uefisecapp: Fixed memory-related IO errors and crashes. It turns out that while the QSEECOM APPSEND command has specific fields for the request and response buffers, uefisecapp expects both to be in a single memor...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drm/etnaviv: checking for the reaped mapping in etnaviviommuunmapgem. When the mapping has already been reaped, the unmap operation must be a no-op. Otherwise, we would try to remove the mapping twice, corrupting the involved dat...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: RISCV: Fixed the issue of loading 64-bit NOMMU kernels beyond the start of RAM. The commit 3335068f8721 “RISCV: Use PUD/P4D/PGD pages for the linear mapping” added logic to allow using memory below the kernel’s load address...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: vfio/type1: prevents underflow of lockedvm via exec When a vfio container is preserved during execution, the task does not change. Instead, a new memory page is allocated with lockedvm=0, and the counter from existing DMA mapping...

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

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fixed the DMA-API call trace for NVMe LS requests. The following message and call trace were observed with debug kernels: DMA-API: qla2xxx 0000:41:00.0: The device driver failed to check the map error device...

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

In the Linux kernel, the following vulnerability has been resolved: regulator: stm32-pwr: Fix for the ofiomap leak. Suggestions: - In the file drivers/regulator/stm32-pwr.c, line 166 of stm32pwrregulatorprobe: The “base” from the ofiomap function is not released when the stm32pwrregulatorprobe...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, Fixed by using eswitch mapping in nic mode The cited patch uses the eswitch object mapping pool when in nic mode, where it is not initialized. This results in the following trace 0. Fixed by using either the nic or...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mm/vmemmap/devdax: fixed a kernel crash that occurred when probing devdax devices. The commit 4917f55b4ef9 “mm/sparse-vmemmap: improved memory savings for compound devmaps” added support for using optimized vmmemap for devdax...

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

In the Linux kernel, the following vulnerabilities have been resolved: rvc: Sparse-Memory/vmemmap out-of-bounds fix The offset of vmemmap has been adjusted so that the first page of vmemmap is mapped to the first page of physical memory. This ensures that the bounds of vmemmap are respected durin...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: arm64: io: The memory type of the user is extracted in ioremapprot. The only function that calls ioremapprot outside of the generic ioremap implementation is genericaccessphys, which passes a pgprott value determined from the use...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: e100: A potential use of memory after freeing it has been fixed in e100xmitprepare. In e100xmitprepare, if we cannot map the skb, then -ENOMEM is returned. As a result, e100xmitframe will return NETDEVTXBUSY, and the upper layer...

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

In the Linux kernel, the following vulnerability has been resolved: erofs: Fix for lz4 inplace decompression Currently, EROFS can map another compressed buffer for inplace decompression, which was used to handle cases where some pages of compressed data are not actually in-place I/O. However, lik...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm: call -freefolio directly in foliounmapinvalidate. We can only call filemapfreefolio if we have a reference to or hold a lock on the mapping. Otherwise, we have already removed the folio from the mapping, so it no longer pinch...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/gpusvm: fixed the usage of hmmpfntomaporder Handled the case where the hmm range partially covers a large page such as 2M. Otherwise, we might end up doing something unpleasant, such as mapping memory that is outside the...