CVE-2023-54091

drm/client: Fix memory leak in drm_client_target_cloned

N/A

Published: December 24, 2025 at 01:06 PM UTC

Updated: June 17, 2026 at 06:46 AM UTC

1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

N/A

Exploit prediction

EPSS 0.3%

Description

In the Linux kernel, the following vulnerability has been resolved: drm/client: Fix memory leak in drm_client_target_cloned dmt_mode is allocated and never freed in this function. It was found with the ast driver, but most drivers using generic fbdev setup are probably affected. This fixes the following kmemleak report: backtrace: [<00000000b391296d>] drm_mode_duplicate+0x45/0x220 [drm] [<00000000e45bb5b3>] drm_client_target_cloned.constprop.0+0x27b/0x480 [drm] [<00000000ed2d3a37>] drm_client_modeset_probe+0x6bd/0xf50 [drm] [<0000000010e5cc9d>] __drm_fb_helper_initial_config_and_unlock+0xb4/0x2c0 [drm_kms_helper] [<00000000909f82ca>] drm_fbdev_client_hotplug+0x2bc/0x4d0 [drm_kms_helper] [<00000000063a69aa>] drm_client_register+0x169/0x240 [drm] [<00000000a8c61525>] ast_pci_probe+0x142/0x190 [ast] [<00000000987f19bb>] local_pci_probe+0xdc/0x180 [<000000004fca231b>] work_for_cpu_fn+0x4e/0xa0 [<0000000000b85301>] process_one_work+0x8b7/0x1540 [<000000003375b17c>] worker_thread+0x70a/0xed0 [<00000000b0d43cd9>] kthread+0x29f/0x340 [<000000008d770833>] ret_from_fork+0x1f/0x30 unreferenced object 0xff11000333089a00 (size 128):

Affected

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

Linux Kernel · Linux

95%

2.6.35 ≤ v < 4.14.3222.6.35 ≤ v < 4.19.2912.6.35 ≤ v < 5.10.1882.6.35 ≤ v < 5.15.1232.6.35 ≤ v < 5.4.2512.6.35 ≤ v < 6.1.422.6.35 ≤ v < 6.4.72.6.35 ≤ v < 6.51d42bbc8f7f9ce4d852692ef7aa336b133b0830a2.6.35

Vendor states this is fixed in 105275879a80503686a8108af2f5c579a1c5aef4 (fixed)

Vendor states this is fixed in 4b596a6e2d2e0f9c14e4122506dd715f43fcd727 (fixed)

Vendor states this is fixed in 52daf6ba2e0d201640cb1ce42049c5c4426b4d6e (fixed)

Vendor states this is fixed in a4b978249e8fa94956fce8b70a709f7797716f62 (fixed)

Vendor states this is fixed in a85e23a1ef63e45a18f0a30d7816fcb4a865ca95 (fixed)

Vendor states this is fixed in b5359d7a5087ac398fc429da6833133b4784c268 (fixed)

Vendor states this is fixed in c2a88e8bdf5f6239948d75283d0ae7e0c7945b03 (fixed)

Vendor states this is fixed in d3009700f48602b557eade1f22c98b6bc20247e8 (fixed)

Vendor states this is fixed in 2.6.35 (unaffected)

Vendor states this is fixed in 4.14.322 (unaffected)

Vendor states this is fixed in 4.19.291 (unaffected)

Vendor states this is fixed in 5.10.188 (unaffected)