CVE-2022-49490

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49490
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49490.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49490
Related
Published
2025-02-26T07:01:25Z
Modified
2025-02-26T19:03:09.595640Z
Downstream
Summary
[none]
Details

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

drm/msm/mdp5: Return error code in mdp5piperelease when deadlock is detected

mdp5getglobalstate runs the risk of hitting a -EDEADLK when acquiring the modeset lock, but currently mdp5piperelease doesn't check for if an error is returned. Because of this, there is a possibility of mdp5pipe_release hitting a NULL dereference error.

To avoid this, let's have mdp5piperelease check if mdp5getglobal_state returns an error and propogate that error.

Changes since v1: - Separated declaration and initialization of *new_state to avoid compiler warning - Fixed some spelling mistakes in commit message

Changes since v2: - Return 0 in case where hwpipe is NULL as this is considered normal behavior - Added 2nd patch in series to fix a similar NULL dereference issue in mdp5mixerrelease

Patchwork: https://patchwork.freedesktop.org/patch/485179/

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.127-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+1
5.10.70-1
5.10.84-1
5.10.92-1~bpo10+1
5.10.92-1
5.10.92-2
5.10.103-1~bpo10+1
5.10.103-1
5.10.106-1
5.10.113-1
5.10.120-1~bpo10+1
5.10.120-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.18.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.18.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}