CVE-2022-49644

drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector()

MEDIUM
5.5
CVSS Score
Published: February 26, 2025 at 02:23 AM UTC
Updated: June 17, 2026 at 05:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector() If drm_connector_init fails, intel_connector_free will be called to take care of proper free. So it is necessary to drop the refcount of port before intel_connector_free. (cherry picked from commit cea9ed611e85d36a05db52b6457bf584b7d969e2)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.15 ≤ v < 5.10.1324.15 ≤ v < 5.15.564.15 ≤ v < 5.18.134.15 ≤ v < 5.194.15 ≤ v < 5.4.2075.11 ≤ v < 5.15.565.16 ≤ v < 5.18.135.5 ≤ v < 5.10.1325.19 rc15.19 rc25.19 rc35.19 rc45.19 rc55.19 rc691a4f91942a4396c67e5747f5cb38c6396d1fc5
Vendor states this is fixed in 505114dda5bbfd07f4ce9a2df5b7d8ef5f2a1218 (fixed)
Vendor states this is fixed in 592f3bad00b7e2a95a6fb7a4f9e742c061c9c3c1 (fixed)
Vendor states this is fixed in 72f231b9a88abcfac9f5ddaa1a0aacb3f9f87ba5 (fixed)
Vendor states this is fixed in 85144df9ff4652816448369de76897c57cbb1b93 (fixed)
Vendor states this is fixed in a91522b4279bebb098106a19b91f82b9c3213be9 (fixed)
Vendor states this is fixed in 4.15 (unaffected)
Vendor states this is fixed in 5.10.132 (unaffected)
Vendor states this is fixed in 5.15.56 (unaffected)
Vendor states this is fixed in 5.18.13 (unaffected)
Vendor states this is fixed in 5.19 (unaffected)
Vendor states this is fixed in 5.4.207 (unaffected)

References (5)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/505114dda5bbfd07f4ce9a2df5b7d8ef5f2a1218
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/592f3bad00b7e2a95a6fb7a4f9e742c061c9c3c1
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/72f231b9a88abcfac9f5ddaa1a0aacb3f9f87ba5
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/85144df9ff4652816448369de76897c57cbb1b93
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a91522b4279bebb098106a19b91f82b9c3213be9

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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