CVE-2020-29374

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Source
https://cve.org/CVERecord?id=CVE-2020-29374
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-29374.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-29374
Aliases
Downstream
Related
Published
2020-11-28T07:15:11.960Z
Modified
2026-03-20T11:36:44.765483Z
Severity
  • 3.6 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/hugememory.c. The getuser_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.

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
17839856fd588f4ab6b789f482ed3ffd7c403e1f
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
17839856fd588f4ab6b789f482ed3ffd7c403e1f

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "5.7.3"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "5.7.3"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-29374.json"