Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — drm/amd/display: Fix double free during GPU reset on DC streams
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0023 14.1 —
AFFECTED
Product Versions Fixed
Linux 6d63fcc2a334f7bd15e4e9b1db50a19335d2af4f – —
Linux 5.17 – 5.17.2
TIMELINE
Feb 26 Reserved by Linux
Feb 26 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2022-49203 (Linux). CVSS 7.8 → 5.5 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Fix double free during GPU reset on DC streams
[Why]
The issue only occurs during the GPU reset code path.
We first backup the current state prior to commiting 0 streams
internally from DM to DC. This state backup contains valid link
encoder assignments.
DC will clear the link encoder assignments as part of current state
(but not the backup, since it was a copied before the commit) and
free the extra stream reference it held.
DC requires that the link encoder assignments remain cleared/invalid
prior to commiting. Since the backup still has valid assignments we
call the interface post reset to clear them. This routine also
releases the extra reference that the link encoder interface held -
resulting in a double free (and eventually a NULL pointer dereference).
[How]
We'll have to do a full DC commit anyway after GPU reset because
the stream count previously went to 0.
We don't need to retain the assignment that we had backed up, so
just copy off of the now clean current state assignment after the
reset has occcurred with the new link_enc_cfg_copy() interface.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| February 26, 2025 | Reserved | Reserved by Linux |
| February 26, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2022-49203 (Linux). CVSS 7.8 → 5.5 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 6d63fcc2a334f7bd15e4e9b1db50a19335d2af4f | — |
| Linux | Linux | — | 5.17 | 5.17.2 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-49203 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.