{
  "threat_severity" : "Low",
  "public_date" : "2025-12-24T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: Linux kernel: Denial of Service due to memory leak in drm_client_target_cloned function",
    "id" : "2425176",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2425176"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-772",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\ndrm/client: Fix memory leak in drm_client_target_cloned\ndmt_mode is allocated and never freed in this function.\nIt was found with the ast driver, but most drivers using generic fbdev\nsetup are probably affected.\nThis fixes the following kmemleak report:\nbacktrace:\n[<00000000b391296d>] drm_mode_duplicate+0x45/0x220 [drm]\n[<00000000e45bb5b3>] drm_client_target_cloned.constprop.0+0x27b/0x480 [drm]\n[<00000000ed2d3a37>] drm_client_modeset_probe+0x6bd/0xf50 [drm]\n[<0000000010e5cc9d>] __drm_fb_helper_initial_config_and_unlock+0xb4/0x2c0 [drm_kms_helper]\n[<00000000909f82ca>] drm_fbdev_client_hotplug+0x2bc/0x4d0 [drm_kms_helper]\n[<00000000063a69aa>] drm_client_register+0x169/0x240 [drm]\n[<00000000a8c61525>] ast_pci_probe+0x142/0x190 [ast]\n[<00000000987f19bb>] local_pci_probe+0xdc/0x180\n[<000000004fca231b>] work_for_cpu_fn+0x4e/0xa0\n[<0000000000b85301>] process_one_work+0x8b7/0x1540\n[<000000003375b17c>] worker_thread+0x70a/0xed0\n[<00000000b0d43cd9>] kthread+0x29f/0x340\n[<000000008d770833>] ret_from_fork+0x1f/0x30\nunreferenced object 0xff11000333089a00 (size 128):", "A flaw was found in the Linux kernel. A local attacker could exploit a memory leak in the `drm_client_target_cloned` function, where `dmt_mode` is allocated but never freed. This memory leak could lead to a denial of service (DoS) by exhausting system resources." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2023-11-14T00:00:00Z",
    "advisory" : "RHSA-2023:7077",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-513.5.1.el8_9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-04-30T00:00:00Z",
    "advisory" : "RHSA-2024:2394",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-427.13.1.el9_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-04-30T00:00:00Z",
    "advisory" : "RHSA-2024:2394",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-427.13.1.el9_4"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-54091\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-54091\nhttps://lore.kernel.org/linux-cve-announce/2025122407-CVE-2023-54091-577a@gregkh/T" ],
  "name" : "CVE-2023-54091",
  "csaw" : false
}