CVE-2017-15126

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Source
https://cve.org/CVERecord?id=CVE-2017-15126
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-15126.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2017-15126
Downstream
Published
2018-01-14T06:29:00.217Z
Modified
2026-02-28T00:40:28.395991Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with userfaultfdctxput().

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
384632e67e0829deb8015ee6ad916b180049d252
Introduced
a351e9b9fc24e982ec2f0e76379a49826036da12
Fixed
384632e67e0829deb8015ee6ad916b180049d252

Affected versions

v4.*
v4.11
v4.12
v4.12-rc1
v4.12-rc2
v4.12-rc3
v4.12-rc4
v4.12-rc5
v4.12-rc6
v4.12-rc7
v4.13
v4.13-rc1
v4.13-rc2
v4.13-rc3
v4.13-rc4
v4.13-rc5
v4.13-rc6
v4.13-rc7
v4.14-rc1
v4.14-rc2
v4.14-rc3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-15126.json"
vanir_signatures 
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        "id": "CVE-2017-15126-024f3b72",
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        },
        "signature_type": "Function",
        "target": {
            "file": "fs/userfaultfd.c",
            "function": "userfaultfd_ctx_read"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@384632e67e0829deb8015ee6ad916b180049d252",
        "deprecated": false
    },
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        "id": "CVE-2017-15126-90f6d291",
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