CVE-2022-49932 KVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Do all initialization before exposing /dev/kvm to userspace Call kvminit only after all setup is complete, as kvminit exposes /dev/kvm to userspace and thus allows userspace to create VMs and call other ioctls. E.g. KVM...

CVE-2022-49932

CVE-2022-49932 affects the Linux kernel KVM/vMX path where /dev/kvm is exposed before VMX initialization is complete. The EulerOS advisories (EulerOS-SA-2025-2464/2483, EulerOS-SA-2025-2436/2447) flag this issue as part of kernel fixes and describe the root cause as incomplete initialization prio...

DEBIAN-CVE-2022-49236

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF due to race between btftrygetmodule and loadmodule While working on code to populate kfunc BTF ID sets for module BTF from its initcall, I noticed that by the time the initcall is invoked, the module BTF can already ...

UBUNTU-CVE-2024-49975

In the Linux kernel, the following vulnerability has been resolved: uprobes: fix kernel info leak via "uprobes" vma xoladdvma maps the uninitialized page allocated by createxolarea into userspace. On some architectures x86 this memory is readable even without VMREAD, VMEXEC results in the same...

kernel: KVM: information leak in KVM_GET_DEBUGREGS ioctl on 32-bit systems

A flaw was found in KVM. When calling the KVMGETDEBUGREGS ioctl, on 32-bit systems, there might be some uninitialized portions of the kvmdebugregs structure that could be copied to userspace, causing an information leak...

SUSE CVE-2018-19854

An issue was discovered in the Linux kernel before 4.19.3. cryptoreportone and related functions in crypto/cryptouser.c the crypto user configuration API do not fully initialize structures that are copied to userspace, potentially leaking sensitive memory to user programs. NOTE: this is a...

SUSE CVE-2018-20855

An issue was discovered in the Linux kernel before 4.18.7. In createqpcommon in drivers/infiniband/hw/mlx5/qp.c, mlx5ibcreateqpresp was never initialized, resulting in a leak of stack memory to userspace...

kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR

A flaw was found in the Linux kernel. When an application tries to open a directory using the ODIRECTORY flag in a mounted NFS filesystem, a lookup operation is performed. If the NFS server returns a file as a result of the lookup, the NFS filesystem returns an uninitialized file descriptor inste...

DEBIAN-CVE-2021-4159

A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating som...

PT-2022-9135 · Google · Android

Name of the Vulnerable Software and Affected Versions: Android versions prior to the fixed version Description: The issue arises from the method PVRSRVBridgeTLDiscoverStreams, which allocates a buffer on the heap and fills it via TLServerDiscoverStreamsKM. If TLServerDiscoverStreamsKM fails due t...

ASB-A-236838960

The method PVRSRVBridgeTLDiscoverStreams allocates puiStreamsInt on the heap, fills the contents of the buffer via TLServerDiscoverStreamsKM, and then copies the buffer to userspace. The method TLServerDiscoverStreamsKM may fail for several reasons including invalid sizes. If this method fails th...

CVE-2022-0264

A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating som...

CVE-2021-25369

An improper access control vulnerability in seclog file prior to SMR MAR-2021 Release 1 exposes sensitive kernel information to userspace...

CVE-2020-10854

An issue was discovered on Samsung mobile devices with O8.x, P9.0, and Q10.0 software. Kernel stack addresses are leaked to userspace. The Samsung ID is SVE-2019-16161 January 2020...

kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c

An issue was discovered in the Linux kernel in the cryptoreportone and related functions in the crypto/cryptouser.c the crypto user configuration API which do not fully initialize structures that are copied to userspace, potentially leaking sensitive kernel memory content to a userspace...

UBUNTU-CVE-2018-1000204

Linux Kernel version 3.18 to 4.16 incorrectly handles an SGIO ioctl on /dev/sg0 with dxferdirection=SGDXFERFROMDEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages to the userspace. This has been fixed upstream in...

kernel: Out of bounds read in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() in SCTP stack

A kernel data leak due to an out-of-bound read was found in the Linux kernel in inetdiagmsgsctp,laddrfill and sctpgetsctpinfo functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic...

kernel: kvm: reporting emulation failures to userspace

It was found that reporting emulation failures to user space could lead to either a local CVE-2014-7842 or a L2-L1 CVE-2010-5313 denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. Please note that on certain...

kernel: agp: zero pages before sending to userspace

The 1 agpgenericallocpage and 2 agpgenericallocpages functions in drivers/char/agp/generic.c in the agp subsystem in the Linux kernel before 2.6.30-rc3 do not zero out pages that may later be available to a user-space process, which allows local users to obtain sensitive information by reading...