vulnerability
Ubuntu: (Multiple Advisories) (CVE-2020-29374): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 3 | (AV:L/AC:M/Au:N/C:P/I:P/A:N) | Nov 28, 2020 | Feb 26, 2021 | Aug 18, 2025 |
Severity
3
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:N)
Published
Nov 28, 2020
Added
Feb 26, 2021
Modified
Aug 18, 2025
Description
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.
Solutions
ubuntu-upgrade-linux-image-4-15-0-1012-dell300xubuntu-upgrade-linux-image-4-15-0-1065-oracleubuntu-upgrade-linux-image-4-15-0-1079-gkeubuntu-upgrade-linux-image-4-15-0-1079-raspi2ubuntu-upgrade-linux-image-4-15-0-1085-kvmubuntu-upgrade-linux-image-4-15-0-1093-gcpubuntu-upgrade-linux-image-4-15-0-1094-awsubuntu-upgrade-linux-image-4-15-0-1096-snapdragonubuntu-upgrade-linux-image-4-15-0-1108-azureubuntu-upgrade-linux-image-4-15-0-136-genericubuntu-upgrade-linux-image-4-15-0-136-generic-lpaeubuntu-upgrade-linux-image-4-15-0-136-lowlatencyubuntu-upgrade-linux-image-4-4-0-1086-awsubuntu-upgrade-linux-image-4-4-0-1088-kvmubuntu-upgrade-linux-image-4-4-0-1122-awsubuntu-upgrade-linux-image-4-4-0-1146-raspi2ubuntu-upgrade-linux-image-4-4-0-1150-snapdragonubuntu-upgrade-linux-image-4-4-0-203-genericubuntu-upgrade-linux-image-4-4-0-203-generic-lpaeubuntu-upgrade-linux-image-4-4-0-203-lowlatencyubuntu-upgrade-linux-image-4-4-0-203-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-203-powerpc-smpubuntu-upgrade-linux-image-4-4-0-203-powerpc64-embubuntu-upgrade-linux-image-4-4-0-203-powerpc64-smpubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-aws-lts-18-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-lts-18-04ubuntu-upgrade-linux-image-dell300xubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-18-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-16-04ubuntu-upgrade-linux-image-generic-lpae-lts-xenialubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-4-15ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenialubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc-smp-lts-xenialubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-emb-lts-xenialubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-powerpc64-smp-lts-xenialubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-linux-image-virtual-lts-xenial
References
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