CVE-2022-48771

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Source
https://cve.org/CVERecord?id=CVE-2022-48771
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48771.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-48771
Downstream
Related
Published
2024-06-20T11:13:45.896Z
Modified
2026-04-11T12:41:18.690953Z
Summary
drm/vmwgfx: Fix stale file descriptors on failed usercopy
Details

In the Linux kernel, the following vulnerability has been resolved:

drm/vmwgfx: Fix stale file descriptors on failed usercopy

A failing usercopy of the fencerep object will lead to a stale entry in the file descriptor table as putunused_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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48771.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
c906965dee22d5e95d0651759ba107b420212a9f
Fixed
e8d092a62449dcfc73517ca43963d2b8f44d0516
Fixed
0008a0c78fc33a84e2212a7c04e6b21a36ca6f4d
Fixed
84b1259fe36ae0915f3d6ddcea6377779de48b82
Fixed
ae2b20f27732fe92055d9e7b350abc5cdf3e2414
Fixed
6066977961fc6f437bc064f628cf9b0e4571c56c
Fixed
1d833b27fb708d6fdf5de9f6b3a8be4bd4321565
Fixed
a0f90c8815706981c483a652a6aefca51a5e191c

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48771.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.14.0
Fixed
4.14.264
Type
ECOSYSTEM
Events
Introduced
4.15.0
Fixed
4.19.227
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.175
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.95
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.18
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
5.16.4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48771.json"