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Ubuntu: USN-4752-1 (CVE-2020-29368): Linux kernel (OEM) vulnerabilities

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Ubuntu: USN-4752-1 (CVE-2020-29368): Linux kernel (OEM) vulnerabilities

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
11/28/2020
Created
03/02/2021
Added
02/26/2021
Modified
11/09/2021

Description

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.

Solution(s)

  • ubuntu-upgrade-linux-image-5-6-0-1048-oem
  • ubuntu-upgrade-linux-image-oem-20-04

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