What’s Vulnerable › Vulnerabilities

CVE-2022-49644: drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17

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 products

• Linux kernel: from 4.15 before 5.4.207; from 5.5 before 5.10.132; from 5.11 before 5.15.56; from 5.16 before 5.18.13; 5.19-rc1, 5.19-rc2, 5.19-rc3, 5.19-rc4, 5.19-rc5, 5.19-rc6 — fixed in 5.10.132, 5.15.56, 5.18.13, 5.4.207

How to fix

Upgrade to a fixed version: Linux kernel 5.10.132, 5.15.56, 5.18.13, 5.4.207. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/505114dda5bbfd07f4ce9a2df5b7d8ef5f2a1218
• https://git.kernel.org/stable/c/592f3bad00b7e2a95a6fb7a4f9e742c061c9c3c1
• https://git.kernel.org/stable/c/72f231b9a88abcfac9f5ddaa1a0aacb3f9f87ba5
• https://git.kernel.org/stable/c/85144df9ff4652816448369de76897c57cbb1b93
• https://git.kernel.org/stable/c/a91522b4279bebb098106a19b91f82b9c3213be9

Get alerted when CVE-2022-49644 or the next vulnerability affects your stack