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CVE-2021-4202

Published: Mar 25, 2022

Modified: Aug 3, 2024

PUBLISHED

Description

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.

Vendor	Product	Versions
n/a	kernel	affected `kernel 5.16 rc2`

Weaknesses (CWE)

References

https://bugzilla.redhat.com/show_bug.cgi?id=2036682

x_refsource_MISC

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3b5dfcd16a3e254aab61bd1e8c417dd4503102

x_refsource_MISC

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=48b71a9e66c2eab60564b1b1c85f4928ed04e406

x_refsource_MISC

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=86cdf8e38792545161dbe3350a7eced558ba4d15

x_refsource_MISC

https://security.netapp.com/advisory/ntap-20220513-0002/

x_refsource_CONFIRM

[oss-security] 20220601 Re: CVE-2021-4204: Linux Kernel eBPF Improper Input Validation Vulnerability

mailing-list

x_refsource_MLIST

[oss-security] 20220604 Re: CVE-2021-4204: Linux Kernel eBPF Improper Input Validation Vulnerability

mailing-list

x_refsource_MLIST

[oss-security] 20220607 Re: CVE-2021-4204: Linux Kernel eBPF Improper Input Validation Vulnerability

mailing-list

x_refsource_MLIST

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