Oracle Linux 8 : virt:ol / and / virt-devel:rhel (ELSA-2023-6980)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-6980 advisory. - Fix CVE-2022-2211 Denial of Service in --key parameter resolves: rhbz2101280 - Fixes: CVE-2022-40284 - Fixes: CVE-2021-46790, CVE-2022-30783,...

The vulnerability of the ide_dma_cb() function in the QEMU hardware emulation software allows a attacker to gain access to read, modify, or delete data, or to cause a service failure.

The vulnerability of the idedmacb function in the QEMU hardware emulation software is related to synchronization errors when processing the DRQSTAT parameter. Exploiting this vulnerability can allow an attacker to gain access to read, modify, or delete data, or cause a service failure...

QEMU: hcd-ehci: DMA reentrancy issue leads to use-after-free

A DMA reentrancy issue was found in the USB EHCI controller emulation of QEMU. EHCI does not verify if the Buffer Pointer overlaps with its MMIO region when it transfers the USB packets. Crafted content may be written to the controller's registers and trigger undesirable actions such as reset whi...

kernel: Linux kernel: Denial of Service in vmwgfx due to invalid DMA surface copies

A flaw was discovered in the Linux kernel’s DRM vmwgfx driver related to how cursor images are snooped and copied. When the dimensions of a DMA surface copybox were derived from untrusted userspace data without proper validation against the expected snooped cursor size, an invalid size could caus...

kernel: drm/shmem-helper: Remove another errant put in error path

In the Linux kernel, the following vulnerability has been resolved: drm/shmem-helper: Remove another errant put in error path drmgemshmemmmap doesn't own reference in error code path, resulting in the dma-buf shmem GEM object getting prematurely freed leading to a later use-after-free...

kernel: dmaengine: ptdma: check for null desc before calling pt_cmd_callback

AMD PTDMA Pass-Through DMA engine crashes the kernel when ptissuepending encounters empty descriptor queues. The function blindly invokes ptcmdcallback without verifying that a valid descriptor exists, triggering a NULL pointer dereference. This commonly surfaces during system shutdown on AMD...

kernel: wifi: mt76: dma: fix memory leak running mt76_dma_tx_cleanup

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: dma: fix memory leak running mt76dmatxcleanup Fix device unregister memory leak and alway cleanup all configured rx queues in mt76dmatxcleanup routine...

kernel: scsi: qla2xxx: Fix DMA-API call trace on NVMe LS requests

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix DMA-API call trace on NVMe LS requests The following message and call trace was seen with debug kernels: DMA-API: qla2xxx 0000:41:00.0: device driver failed to check map error device address=0x00000002a3ff38d8...

kernel: wifi: mt7601u: fix an integer underflow

In the Linux kernel, the following vulnerability has been resolved: wifi: mt7601u: fix an integer underflow Fix an integer underflow that leads to a null pointer dereference in 'mt7601urxskbfromseg'. The variable 'dmalen' in the URB packet could be manipulated, which could trigger an integer...

Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

Kernel-based Virtual Machine KVM offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the...

ALSA-2023:6980 Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

Kernel-based Virtual Machine KVM offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the...

QEMU: hcd-ehci: DMA reentrancy issue (incomplete fix for CVE-2021-3750)

This CVE exists because of an incomplete fix for CVE-2021-3750. More specifically, the qemu-kvm package as released for Red Hat Enterprise Linux 9.1 via RHSA-2022:7967 included a version of qemu-kvm that was actually missing the fix for CVE-2021-3750...

kernel: wifi: mt7601u: fix an integer underflow

In the Linux kernel, the following vulnerability has been resolved: wifi: mt7601u: fix an integer underflow Fix an integer underflow that leads to a null pointer dereference in 'mt7601urxskbfromseg'. The variable 'dmalen' in the URB packet could be manipulated, which could trigger an integer...

kernel: Linux kernel: Denial of Service in vmwgfx due to invalid DMA surface copies

A flaw was discovered in the Linux kernel’s DRM vmwgfx driver related to how cursor images are snooped and copied. When the dimensions of a DMA surface copybox were derived from untrusted userspace data without proper validation against the expected snooped cursor size, an invalid size could caus...

kernel: Linux kernel: Denial of Service in vfio/type1 due to locked_vm underflow

A flaw was found in the Linux kernel's vfio/type1 module. A local user could exploit this vulnerability when a vfio container is preserved across an exec call. If the user unmaps a Direct Memory Access DMA mapping, the lockedvm counter can underflow. This underflow can cause subsequent DMA map...

kernel: dmaengine: qcom-adm: fix wrong calling convention for prep_slave_sg

A flaw was found in the Linux kernel’s dmaengine qcom-adm implementation where the function prepslavesg did not adhere to the documented error return convention. On error, it returned an error pointer instead of NULL, which can cause consumers that check only for non-NULL to assume success and...

kernel: scsi: mpi3mr: Fix config page DMA memory leak

A flaw was found in the mpi3mr module in the Linux kernel. A memory leak can occur due to pending DMA allocations from the driver after it is released from the device. This issue potentially impacts system performance and results in a denial of service...

kernel: wifi: mt76: dma: fix memory leak running mt76_dma_tx_cleanup

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: dma: fix memory leak running mt76dmatxcleanup Fix device unregister memory leak and alway cleanup all configured rx queues in mt76dmatxcleanup routine...

kernel: RDMA/core: Fix ib block iterator counter overflow

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix 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 to smaller, aligned to the selected page size...

kernel: dmaengine: qcom-adm: fix wrong sizeof config in slave_config

A logic error was found in the Linux kernel Qualcomm ADM DMA engine driver's slave configuration handling. A local user with privileges to configure DMA operations can trigger DMA slave setup on Qualcomm ADM hardware, causing the driver to use an incorrect size comparison pointer size instead of...