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Use After Free Affecting torvalds/linux Open this link in a new tab package, versions [,v5.16-rc1)

0.0
high

  • Attack Complexity

    High

  • Confidentiality

    High

  • Integrity

    High

  • Availability

    High

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  • snyk-id

    SNYK-UNMANAGED-TORVALDSLINUX-2933199

  • published

    21 Jun 2022

  • disclosed

    21 Jun 2022

  • credit

    Unknown

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Introduced: 21 Jun 2022

New CVE-2021-3640 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade torvalds/linux to version v5.16-rc1 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free in function sco_sock_sendmsg() when a user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page.