Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

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 in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: media: pci: tw68: Fixed the nullptrderef bug in the buf prepare and finish steps. When the driver calls tw68riscbuffer to prepare the buffer, the function call dmaalloccoherent may fail, resulting in an empty buffer buf-cpu. Late...

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

In the Linux kernel, the following vulnerability has been resolved: PCI: switchtec: Fixed a crash occurring in stdevrelease after an unexpected hot removal. A hot removal of a PCI device can occur while stdev-cdev is still held open. The call to stdevrelease happens during close or exit, well aft...

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: ALSA: sh: aica: reordering cleanup operations to avoid UAF bugs The dreamcastcard-timer could schedule the spudmawork, and the spudmawork could also trigger the dreamcastcard-timer. When the sndpcmsubstream is closing, the...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: avoid SBSA UART accessing the DMACR register The chapter “B Generic UART” in “ARM Server Base System Architecture” 1 describes a generic UART interface. Such a generic UART does not support DMA. In current cod...

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 – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dma-debug: Do not call dmaentryalloccheckleak under freeEntriesLock. dmaEntryallocCheckleak calls into printk, which outputs to the serial console qcom geni. It also acquires port-lock under freeEntriesLock. This involves a rever...

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

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Perform lockless command completion in the abort path When adding or removing controllers, the following call trace was observed: WARNING: CPU: 3 PID: 623596 at kernel/dma/mapping.c:532 dmafree attrs+0x33/0x50 CPU:...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: k3-udma: The byte counter UDMACHANRT was reset to prevent overflow. The UDMACHANRTBCNTREG registers store real-time channel byte count statistics. These registers are 32-bit hardware counters, and the driver uses...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: Fix for a random warning message when loading drivers Warning log: 4.141392 Unexpected gfp: 0x4 GFPDMA32. Fixing it up to gfp: 0xa20 GFPATOMIC. Fix your code! 4.150340 CPU: 1 PID: 175 Comm: 1-0050 Not tainted...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Misc: pciendpointtest: Fixed the panic that occurs when calling pciendpointtestcopy,write,read The dmamapsingle function does not allow zero-length mappings. This causes a panic. A panic was reported on the arm64 architecture:...

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 found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: spi: sun6i – reduced the DMA RX transfer width to a single byte. Through empirical testing, it has been determined that sometimes RX SPI transfers with DMA enabled may return corrupted data. This issue arises due to the loss of o...

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

In the Linux kernel, the following vulnerabilities have been resolved: net/mlx5: Fixed the error path in multi-packet WQE transmit. Removed the erroneous unmap if no DMA mapping was established. The multi-packet WQE transmit code attempts to obtain a DMA mapping for the skb. This may fail, for...

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

In the Linux kernel, the following vulnerabilities have been resolved: sh: dma: Fixed the DMA channel offset calculation. Various SoCs from the SH3, SH4, and SH4A family, which use this driver, have different numbers of DMA channels, and these channels can be distributed across up to two DMAC...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dmaengine: dma-axi-dmac: The use of a DMA pool to manage DMA descriptors has been implemented. For architectures like Microblaze or Arm64 where this API is used, DMADIRECTREMAP is set, which means that dmaalloccoherent may remap...

Astra Linux – Vulnerability in Qemu

A potential stack overflow issue due to an infinite loop was identified in various NIC emulators of QEMU, in versions up to and including 5.2.0. The issue occurs in the loopback mode of a NIC, where reentrant DMA checks are bypassed. A guest user/process may exploit this flaw to consume CPU cycle...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: dmaengine: qcom: bamdma: fix runtime PM underflow The commit dbad41e7bb5f “dmaengine: qcom: bamdma: check if the runtime pm enabled” caused unbalanced pmruntimeget/put calls when the bam was controlled remotely. This commit rever...

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

In the Linux kernel, the following vulnerability has been resolved: dma-buf/sw-sync: Do not enable IRQ from syncprintobj. Since the commit a6aa8fca4d79 “dma-buf/sw-sync: Reduce irqsave/irqrestore from known context”, an error occurred when spinunlockirqrestore was replaced with spinunlockirq for...

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: ethernet: ti: netcp: We have standardized the knavdmaopenchannel function to return NULL on error. The function now consistently returns NULL on error, instead of ERRPTR. Currently, the header include/linux/soc/ti/knavdma.h...