kernel: Copy_from_user on 64-bit versions may leak kernel information

A vulnerability was found in copyfromuser in 64-bit versions of the Linux kernel. This flaw allows a local attacker to bypass the "accessok" sanity check and pass a kernel pointer to copyfromuser, resulting in kernel data leaking...

AZL-6600 CVE-2021-42327 affecting package kernel for versions less than 5.10.78.1-1

dplinksettingswrite in drivers/gpu/drm/amd/display/amdgpudm/amdgpudmdebugfs.c in the Linux kernel through 5.14.14 allows a heap-based buffer overflow by an attacker who can write a string to the AMD GPU display drivers debug filesystem. There are no checks on size within parsewritebufferintoparam...

DEBIAN-CVE-2021-42327

dplinksettingswrite in drivers/gpu/drm/amd/display/amdgpudm/amdgpudmdebugfs.c in the Linux kernel through 5.14.14 allows a heap-based buffer overflow by an attacker who can write a string to the AMD GPU display drivers debug filesystem. There are no checks on size within parsewritebufferintoparam...

CVE-2021-42327

dplinksettingswrite in drivers/gpu/drm/amd/display/amdgpudm/amdgpudmdebugfs.c in the Linux kernel through 5.14.14 allows a heap-based buffer overflow by an attacker who can write a string to the AMD GPU display drivers debug filesystem. There are no checks on size within parsewritebufferintoparam...

The vulnerability of the copy_from_user() function in the file system of the shiftfs filesystem in Linux’s operating system, which is related to the repeated release of memory, allows a perpetrator to gain access to confidential data, compromise its integrity, and cause service failures.

The vulnerability of the copyfromuser function in the file system of the shiftfs filesystem in Linux’s operating system is related to the repeated release of memory. Exploiting this vulnerability allows an attacker to gain access to confidential data, compromise its integrity, and cause service...

PT-2024-11235 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to state corruption in the fpu restore sig function. The non-compacted slowpath uses copy from user and copies the entire user buffer into the kernel buffer,...

CVE-2021-3492

Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring during copyfromuser correctly. These could lead to either a double-free situation or memory not being freed at all. An attacker could use this to cause a denial of service kerne...

USN-4917-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke-5.3, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-kvm, linux-oem-5.10, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-raspi2-5.3 vulnerabilities

It was discovered that the overlayfs implementation in the Linux kernel did not properly validate the application of file system capabilities with respect to user namespaces. A local attacker could use this to gain elevated privileges. CVE-2021-3493 Vincent Dehors discovered that the shiftfs file...

UBUNTU-CVE-2021-3492

Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring during copyfromuser correctly. These could lead to either a double-free situation or memory not being freed at all. An attacker could use this to cause a denial of service kerne...

CVE-2021-3492

Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring during copyfromuser correctly. These could lead to either a double-free situation or memory not being freed at all. An attacker could use this to cause a denial of service kerne...

PT-2021-4252

Name of the Vulnerable Software and Affected Versions Shiftfs versions prior to the fixed version Description The issue is related to the copy from user function in the shiftfs file system of the Linux kernel, which is associated with a double-free memory error. This can allow an attacker to acce...

PT-2019-5267 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.3.9 Description: The issue is related to a memory leak in the crypto reportstat function, which can lead to a denial of service due to memory consumption. This can be triggered by causing copy from user...

PT-2023-2689 · Linux +7 · Linux Kernel +7

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to the commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47 Description: The issue is related to the copy from user function in the Linux kernel, which does not implement the uaccess begin nospec feature. This allows a...

Android One - mt_wifi IOCTL_GET_STRUCT Privilege Escalation

Android One - mtwifi IOCTLGETSTRUCT Privilege Escalation Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=678 The wireless driver for the Android One sprout devices has a bad copyfromuser in the handling for the wireless driver socket private read ioctl IOCTLGETSTRUCT with...

VulnCheck KEV: CVE-2015-1805

The 1 piperead and 2 pipewrite implementations in fs/pipe.c in the Linux kernel before 3.16 do not properly consider the side effects of failed copytouserinatomic and copyfromuserinatomic calls, which allows local users to cause a denial of service system crash or possibly gain privileges via a...

CVE-2015-1805

The 1 piperead and 2 pipewrite implementations in fs/pipe.c in the Linux kernel before 3.16 do not properly consider the side effects of failed copytouserinatomic and copyfromuserinatomic calls, which allows local users to cause a denial of service system crash or possibly gain privileges via a...

Bluetooth setsockopt() information leaks

The setsockopt function in the L2CAP and HCI Bluetooth support in the Linux kernel before 2.4.34.3 allows context-dependent attackers to read kernel memory and obtain sensitive information via unspecified vectors involving the copyfromuser function accessing an uninitialized stack buffer...

Bluetooth setsockopt() information leaks

The setsockopt function in the L2CAP and HCI Bluetooth support in the Linux kernel before 2.4.34.3 allows context-dependent attackers to read kernel memory and obtain sensitive information via unspecified vectors involving the copyfromuser function accessing an uninitialized stack buffer...

Bluetooth setsockopt() information leaks

The setsockopt function in the L2CAP and HCI Bluetooth support in the Linux kernel before 2.4.34.3 allows context-dependent attackers to read kernel memory and obtain sensitive information via unspecified vectors involving the copyfromuser function accessing an uninitialized stack buffer...

security flaw

The copyfromuser function in the uaccess code in Linux kernel 2.6 before 2.6.19-rc1, when running on s390, does not properly clear a kernel buffer, which allows local user space programs to read portions of kernel memory by "appending to a file from a bad address," which triggers a fault that...