CVE-2021-4202

Summary

A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.

Affected Software

Weaknesses

• CWE-362: CWE-362->CWE-416

ADP Enrichment

CVE Program Container

Additional References

• https://bugzilla.redhat.com/show_bug.cgi?id=2036682
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3b5dfcd16a3e254aab61bd1e8c417dd4503102
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=48b71a9e66c2eab60564b1b1c85f4928ed04e406
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=86cdf8e38792545161dbe3350a7eced558ba4d15
• https://security.netapp.com/advisory/ntap-20220513-0002/
• http://www.openwall.com/lists/oss-security/2022/06/01/2
• http://www.openwall.com/lists/oss-security/2022/06/04/2
• http://www.openwall.com/lists/oss-security/2022/06/07/2

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2036682
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3b5dfcd16a3e254aab61bd1e8c417dd4503102
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=48b71a9e66c2eab60564b1b1c85f4928ed04e406
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=86cdf8e38792545161dbe3350a7eced558ba4d15
• https://security.netapp.com/advisory/ntap-20220513-0002/
• http://www.openwall.com/lists/oss-security/2022/06/01/2
• http://www.openwall.com/lists/oss-security/2022/06/04/2
• http://www.openwall.com/lists/oss-security/2022/06/07/2

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