An issue was discovered in the Linux kernel before 5.7.3 related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation when used for a copy-on-write page does not properly consider the semantics of read operations and therefore can grant unintended write access aka CID-17839856fd58.

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An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check aka CID-c444eb564fb1.

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The vulnerability of the KD_FONT_OP_COPY function in the fbcon driver of Linux operating systems allows attackers to escalate their privileges or cause service failures.

The vulnerability of the KDFONTOPCOPY function in the fbcon driver of Linux operating system kernels relates to the execution of operations outside the buffer boundaries. Exploiting this vulnerability could allow an attacker to gain unauthorized access to protected information or cause service...

A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.

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CVE-2020-29368

An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check. Mitigation Mitigation for this issue is either not available or the currently available options...

Linux kernel code issue vulnerability (CNVD-2020-68543)

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in versions of Linux kernel prior to 5.7.5, which stems from a contention condition in split huge pmd in mm huge memoryc, where the copy-on-writ...

PT-2020-6398 · Openexr · Openexr

Name of the Vulnerable Software and Affected Versions: OpenEXR versions prior to 3.0.1 Description: A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR. This issue allows an attacker to execute arbitrary code with the permissions of the user running the application...

DEBIAN-CVE-2020-29368

An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1...

CVE-2020-29374

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/hugememory.c. The getuserpages aka gup implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka...

DEBIAN-CVE-2020-29374

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/hugememory.c. The getuserpages aka gup implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka...

CVE-2020-29368

An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1...

Race condition

An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1...

CVE-2020-29368

An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1...

Design/Logic Flaw

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/hugememory.c. The getuserpages aka gup implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka...

UBUNTU-CVE-2020-29374

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/hugememory.c. The getuserpages aka gup implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka...

UBUNTU-CVE-2020-29368

An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1...

CVE-2020-29368

Affected software: Linux kernel up to version prior to 5.7.5 (pre-5.7.5). Vulnerability details: In mm/huge_memory.c, __split_huge_pmd, the copy-on-write CoW implementation can grant unintended write access due to a race in the THP mapcount check. This race condition can lead to local write acces...

CVE-2020-29374

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/hugememory.c. The getuserpages aka gup implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka...

Linux kernel 竞争条件问题漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in versions of Linux kernel prior to 5.7.5, which stems from a contention condition in split huge pmd in mm huge memoryc, where the copy-on-writ...

Design/Logic Flaw

Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. This is a Consensus vulnerability in Geth before version 1.9.17 which can be used to cause a chain-split where vulnerable nodes reject the canonical chain. Geth's pre-compiled dataCopy at 0x00...04 contract di...