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CVE-2021-47579 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ovl: fix warning in ovl_create_real() Syzbot triggered the following warning in ovl_workdir_create() -> ovl_create_real(): if (!err && WARN_ON(!newdentry->d_inode)) { The reason is that the cgroup2 filesystem returns from mkdir without instantiating the new dentry. Weird filesystems such as this will be rejected by overlayfs at a later stage during setup, but to prevent such a warning, call ovl_mkdir_real() directly from ovl_workdir_create() and reject this case early.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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Hyperlink Resource
https://git.kernel.org/stable/c/1f5573cfe7a7056e80a92c7a037a3e69f3a13d1c
https://git.kernel.org/stable/c/1f5573cfe7a7056e80a92c7a037a3e69f3a13d1c
https://git.kernel.org/stable/c/445d2dc63e5871d218f21b8f62ab29ac72f2e6b8
https://git.kernel.org/stable/c/445d2dc63e5871d218f21b8f62ab29ac72f2e6b8
https://git.kernel.org/stable/c/6859985a2fbda5d1586bf44538853e1be69e85f7
https://git.kernel.org/stable/c/6859985a2fbda5d1586bf44538853e1be69e85f7
https://git.kernel.org/stable/c/d2ccdd4e4efab06178608a34d7bfb20a54104c02
https://git.kernel.org/stable/c/d2ccdd4e4efab06178608a34d7bfb20a54104c02
https://git.kernel.org/stable/c/f9f300a92297be8250547347fd52216ef0177ae0
https://git.kernel.org/stable/c/f9f300a92297be8250547347fd52216ef0177ae0

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-47579
NVD Published Date:
06/19/2024
NVD Last Modified:
11/21/2024
Source:
kernel.org