CVE-2022-50499

High

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: Fix double free in dvb_register_device() In function dvb_register_device() -> dvb_register_media_device() -> dvb_create_media_entity(), dvb->entity is allocated and initialized. If the initialization fails, it frees the dvb->entity, and return an error code. The caller takes the error code and handles the error by calling dvb_media_device_free(), which unregisters the entity and frees the field again if it is not NULL. As dvb->entity may not NULLed in dvb_create_media_entity() when the allocation of dvbdev->pad fails, a double free may occur. This may also cause an Use After free in media_device_unregister_entity(). Fix this by storing NULL to dvb->entity when it is freed.

Package Linux Kernel
Published 2025-10-04
Last modified 2026-01-22
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

7.8

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-415

CVE-2022-50499 is classified as CWE-415

See CWE-415 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 4.9.195, 4.14.147, 4.19.77, 5.2.19, 5.3.4, 5.4 and later are affected. Fixed in 4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.87, 6.0.18, 6.1.4, 6.2 and their respective stable series.

Affected from
≥ 4.9.195 ≥ 4.14.147 ≥ 4.19.77 ≥ 5.2.19 ≥ 5.3.4 ≥ 5.4
Fixed in
✓ 4.9.337 4.9.x ✓ 4.14.303 4.14.x ✓ 4.19.270 4.19.x ✓ 5.4.229 5.4.x ✓ 5.10.163 5.10.x ✓ 5.15.87 5.15.x ✓ 6.0.18 6.0.x ✓ 6.1.4 6.1.x ✓ 6.2

References

The following references provide additional information about CVE-2022-50499 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

9 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2022-50499?

    CVE-2022-50499 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 4.9.195 onward and has been patched in 4.9.337, 4.14.303, 4.19.270 and others. CVE-2022-50499 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2022-50499?

    CVE-2022-50499 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2022-50499?

    Yes — CVE-2022-50499 has been patched. Fixed versions include 4.9.337, 4.14.303, 4.19.270 and others. If you are running Linux kernel 4.9.195 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2022-50499 actively exploited?

    No — CVE-2022-50499 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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