Vulnerability 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):
References
- https://git.kernel.org/stable/c/105275879a80503686a8108af2f5c579a1c5aef4
- https://git.kernel.org/stable/c/4b596a6e2d2e0f9c14e4122506dd715f43fcd727
- https://git.kernel.org/stable/c/52daf6ba2e0d201640cb1ce42049c5c4426b4d6e
- https://git.kernel.org/stable/c/a4b978249e8fa94956fce8b70a709f7797716f62
- https://git.kernel.org/stable/c/a85e23a1ef63e45a18f0a30d7816fcb4a865ca95
- https://git.kernel.org/stable/c/b5359d7a5087ac398fc429da6833133b4784c268
- https://git.kernel.org/stable/c/c2a88e8bdf5f6239948d75283d0ae7e0c7945b03
- https://git.kernel.org/stable/c/d3009700f48602b557eade1f22c98b6bc20247e8
FAQ
What is CVE-2023-54091?
CVE-2023-54091 is a documented vulnerability. 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 ...
How severe is CVE-2023-54091?
CVSS scoring is not yet available for CVE-2023-54091. Check NVD for updates.
Is there a patch for CVE-2023-54091?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.