CVE-2026-23227

HIGH EPSS 4.8%
Published Feb 18, 20264mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 18, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: drm/exynos: vidi: use ctx->lock to protect struct vidi_context member variables related to memory alloc/free Exynos Virtual Display driver performs memory alloc/free operations without lock protection, which easily causes concurrency problem. For example, use-after-free can occur in race scenario like this: ``` CPU0 CPU1 CPU2 ---- ---- ---- vidi_connection_ioctl() if (vidi->connection) // true drm_edid = drm_edid_alloc(); // alloc drm_edid ... ctx->raw_edid = drm_edid; ... drm_mode_getconnector() drm_helper_probe_single_connector_modes() vidi_get_modes() if (ctx->raw_edid) // true drm_edid_dup(ctx->raw_edid); if (!drm_edid) // false ... vidi_connection_ioctl() if (vidi->connection) // false drm_edid_free(ctx->raw_edid); // free drm_edid ... drm_edid_alloc(drm_edid->edid) kmemdup(edid); // UAF!! ... ``` To prevent these vulns, at least in vidi_context, member variables related to memory alloc/free should be protected with ctx->lock.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
4.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥3.6  –  <6.12.77
linuxlinux_kernel*≥6.13  –  <6.18.11
linuxlinux_kernel*≥6.19  –  <6.19.1

References 8

  • git.kernel.org https://git.kernel.org/stable/c/0cd2c155740dbd00868ac5a8ae5d14cd6b9ed385
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1b24d3e8792bcc050c70e8e0dea6b49c4fc63b13
  • git.kernel.org https://git.kernel.org/stable/c/52b330799e2d6f825ae2bb74662ec1b10eb954bb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/56966a4cfa925ec24edb68ab652a740a7abe2c4d
  • git.kernel.org https://git.kernel.org/stable/c/60b75407c172e1f341a8a5097c5cbc97dbbdd893
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/92dd1f38d7db75374dcdaf54f1d79d67bffd54e5
  • git.kernel.org https://git.kernel.org/stable/c/9e1ef9396a1899925911b1729cb65665420268df
  • git.kernel.org https://git.kernel.org/stable/c/abfdf449fb3d7b42e85a1ad1c8694b768b1582f4
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0cd2c155740dbd00868ac5a8ae5d14cd6b9ed385
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/52b330799e2d6f825ae2bb74662ec1b10eb954bb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/60b75407c172e1f341a8a5097c5cbc97dbbdd893
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/abfdf449fb3d7b42e85a1ad1c8694b768b1582f4
    Patch