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CVE-2022-48771 Details

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fix stale file descriptors on failed usercopy A failing usercopy of the fence_rep object will lead to a stale entry in the file descriptor table as put_unused_fd() won't release it. This enables userland to refer to a dangling 'file' object through that still valid file descriptor, leading to all kinds of use-after-free exploitation scenarios. Fix this by deferring the call to fd_install() until after the usercopy has succeeded.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/0008a0c78fc33a84e2212a7c04e6b21a36ca6f4d	kernel.org	Patch
https://git.kernel.org/stable/c/1d833b27fb708d6fdf5de9f6b3a8be4bd4321565	kernel.org	Patch
https://git.kernel.org/stable/c/6066977961fc6f437bc064f628cf9b0e4571c56c	kernel.org	Patch
https://git.kernel.org/stable/c/84b1259fe36ae0915f3d6ddcea6377779de48b82	kernel.org	Patch
https://git.kernel.org/stable/c/a0f90c8815706981c483a652a6aefca51a5e191c	kernel.org	Patch
https://git.kernel.org/stable/c/ae2b20f27732fe92055d9e7b350abc5cdf3e2414	kernel.org	Patch
https://git.kernel.org/stable/c/e8d092a62449dcfc73517ca43963d2b8f44d0516	kernel.org	Patch
https://git.kernel.org/stable/c/0008a0c78fc33a84e2212a7c04e6b21a36ca6f4d	CVE	Patch
https://git.kernel.org/stable/c/1d833b27fb708d6fdf5de9f6b3a8be4bd4321565	CVE	Patch
https://git.kernel.org/stable/c/6066977961fc6f437bc064f628cf9b0e4571c56c	CVE	Patch
https://git.kernel.org/stable/c/84b1259fe36ae0915f3d6ddcea6377779de48b82	CVE	Patch
https://git.kernel.org/stable/c/a0f90c8815706981c483a652a6aefca51a5e191c	CVE	Patch
https://git.kernel.org/stable/c/ae2b20f27732fe92055d9e7b350abc5cdf3e2414	CVE	Patch
https://git.kernel.org/stable/c/e8d092a62449dcfc73517ca43963d2b8f44d0516	CVE	Patch

see all 14 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	[email protected]

Affected Products

Product	Versions
linux linux kernel	>= 4.14, < 4.14.264 >= 4.15, < 4.19.227 >= 4.20, < 5.4.175 >= 5.5, < 5.10.95 >= 5.11, < 5.15.18
CPE cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:5.17:rc1:::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Aug 4, 2026	CVE Modified	kernel.org
Jun 17, 2026	CVE Modified	kernel.org
Jun 17, 2026	CVE Modified	CISA-ADP
Jan 6, 2025	Initial Analysis	[email protected]
Nov 21, 2024	CVE Modified	CVE
Jun 20, 2024	New CVE Received	kernel.org