CVE-2023-54091 | THREATINT

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):

PUBLISHED Reserved 2025-12-24 | Published 2025-12-24 | Updated 2025-12-24 | Assigner Linux

Product status

Default status

unaffected

1d42bbc8f7f9ce4d852692ef7aa336b133b0830a (git) before d3009700f48602b557eade1f22c98b6bc20247e8

affected

1d42bbc8f7f9ce4d852692ef7aa336b133b0830a (git) before a4b978249e8fa94956fce8b70a709f7797716f62

affected

1d42bbc8f7f9ce4d852692ef7aa336b133b0830a (git) before 52daf6ba2e0d201640cb1ce42049c5c4426b4d6e

affected

1d42bbc8f7f9ce4d852692ef7aa336b133b0830a (git) before 105275879a80503686a8108af2f5c579a1c5aef4

affected

1d42bbc8f7f9ce4d852692ef7aa336b133b0830a (git) before a85e23a1ef63e45a18f0a30d7816fcb4a865ca95

affected

1d42bbc8f7f9ce4d852692ef7aa336b133b0830a (git) before b5359d7a5087ac398fc429da6833133b4784c268

affected

1d42bbc8f7f9ce4d852692ef7aa336b133b0830a (git) before 4b596a6e2d2e0f9c14e4122506dd715f43fcd727

affected

1d42bbc8f7f9ce4d852692ef7aa336b133b0830a (git) before c2a88e8bdf5f6239948d75283d0ae7e0c7945b03

affected

Default status

affected

2.6.35

affected

Any version before 2.6.35

unaffected

4.14.322 (semver)

unaffected

4.19.291 (semver)

unaffected

5.4.251 (semver)

unaffected

5.10.188 (semver)

unaffected

5.15.123 (semver)

unaffected

6.1.42 (semver)

unaffected

6.4.7 (semver)

unaffected

6.5 (original_commit_for_fix)

unaffected

References

git.kernel.org/...c/d3009700f48602b557eade1f22c98b6bc20247e8

git.kernel.org/...c/a4b978249e8fa94956fce8b70a709f7797716f62

git.kernel.org/...c/52daf6ba2e0d201640cb1ce42049c5c4426b4d6e

git.kernel.org/...c/105275879a80503686a8108af2f5c579a1c5aef4

git.kernel.org/...c/a85e23a1ef63e45a18f0a30d7816fcb4a865ca95

git.kernel.org/...c/b5359d7a5087ac398fc429da6833133b4784c268

git.kernel.org/...c/4b596a6e2d2e0f9c14e4122506dd715f43fcd727

git.kernel.org/...c/c2a88e8bdf5f6239948d75283d0ae7e0c7945b03

cve.org (CVE-2023-54091)

nvd.nist.gov (CVE-2023-54091)

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