CVE-2023-52469 (GCVE-0-2023-52469)

Vulnerability from cvelistv5 – Published: 2024-02-25 08:16 – Updated: 2026-08-05 09:10
VLAI
Title
drivers/amd/pm: fix a use-after-free in kv_parse_power_table
Summary
In the Linux kernel, the following vulnerability has been resolved: drivers/amd/pm: fix a use-after-free in kv_parse_power_table When ps allocated by kzalloc equals to NULL, kv_parse_power_table frees adev->pm.dpm.ps that allocated before. However, after the control flow goes through the following call chains: kv_parse_power_table |-> kv_dpm_init |-> kv_dpm_sw_init |-> kv_dpm_fini The adev->pm.dpm.ps is used in the for loop of kv_dpm_fini after its first free in kv_parse_power_table and causes a use-after-free bug.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-08 20:26 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6665 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a2e73f56fa6282481927ec43aa9362c03c2e2104 , < 8a27d9d9fc9b5564b8904c3a77a7dea482bfa34e (git)
Affected: a2e73f56fa6282481927ec43aa9362c03c2e2104 , < 8b55b06e737feb2a645b0293ea27e38418876d63 (git)
Affected: a2e73f56fa6282481927ec43aa9362c03c2e2104 , < 520e213a0b97b64735a13950e9371e0a5d7a5dc3 (git)
Affected: a2e73f56fa6282481927ec43aa9362c03c2e2104 , < b6dcba02ee178282e0d28684d241e0b8462dea6a (git)
Affected: a2e73f56fa6282481927ec43aa9362c03c2e2104 , < 35fa2394d26e919f63600ce631e6aefc95ec2706 (git)
Affected: a2e73f56fa6282481927ec43aa9362c03c2e2104 , < 95084632a65d5c0d682a83b55935560bdcd2a1e3 (git)
Affected: a2e73f56fa6282481927ec43aa9362c03c2e2104 , < 3426f059eacc33ecc676b0d66539297e1cfafd02 (git)
Affected: a2e73f56fa6282481927ec43aa9362c03c2e2104 , < 28dd788382c43b330480f57cd34cde0840896743 (git)
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Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 4.19.306 , ≤ 4.19.* (semver)
Unaffected: 5.4.268 , ≤ 5.4.* (semver)
Unaffected: 5.10.209 , ≤ 5.10.* (semver)
Unaffected: 5.15.148 , ≤ 5.15.* (semver)
Unaffected: 6.1.75 , ≤ 6.1.* (semver)
Unaffected: 6.6.14 , ≤ 6.6.* (semver)
Unaffected: 6.7.2 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
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                "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
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            "title": "CVE Program Container"
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            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-52469",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
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                    "role": "CISA Coordinator",
                    "timestamp": "2024-08-08T20:26:55.333142Z",
                    "version": "2.0.3"
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              "shortName": "CISA-ADP"
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        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
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            },
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              "programFiles": [
                "drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "4.2"
                },
                {
                  "lessThan": "4.2",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.306",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.268",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.209",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.148",
                  "versionType": "semver"
                },
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                  "status": "unaffected",
                  "version": "6.1.75",
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                },
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                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.14",
                  "versionType": "semver"
                },
                {
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                  "status": "unaffected",
                  "version": "6.7.2",
                  "versionType": "semver"
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                  "status": "unaffected",
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                  "versionType": "original_commit_for_fix"
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          ],
          "cpeApplicability": [
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                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.19.306",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.268",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.209",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
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                      "versionEndExcluding": "5.15.148",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.75",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.14",
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                      "vulnerable": true
                    },
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                      "vulnerable": true
                    },
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                      "versionEndExcluding": "6.8",
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          ],
          "descriptions": [
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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/amd/pm: fix a use-after-free in kv_parse_power_table\n\nWhen ps allocated by kzalloc equals to NULL, kv_parse_power_table\nfrees adev-\u003epm.dpm.ps that allocated before. However, after the control\nflow goes through the following call chains:\n\nkv_parse_power_table\n  |-\u003e kv_dpm_init\n        |-\u003e kv_dpm_sw_init\n\t      |-\u003e kv_dpm_fini\n\nThe adev-\u003epm.dpm.ps is used in the for loop of kv_dpm_fini after its\nfirst free in kv_parse_power_table and causes a use-after-free bug."
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                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
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                  "value": "AV:L - The vulnerable path runs only during amdgpu PCI/DRM device software init (amdgpu_device_ip_init \u2192 kv_dpm_sw_init \u2192 kv_dpm_init \u2192 kv_parse_power_table) on Kabini/Kaveri/Mullins APUs, which is local driver initialization and not reachable via network or adjacent-link protocols.\nAC:L - A local attacker can induce system-wide memory pressure so the GFP_KERNEL kzalloc of struct kv_ps fails; once that allocation fails, the premature kfree of adev-\u003epm.dpm.ps followed by kv_dpm_fini\u2019s second free is deterministic with no uncontrolled race.\nPR:L - Exploitation is assessed from an unprivileged local account on a shared system with an affected AMD APU and amdgpu CIK support enabled; under the higher-severity interpretation, real root is not required for the attacker\u2019s privileges prior to exploitation (consistent with the sibling si_dpm double-free CVE-2023-52691).\nUI:N - No separate victim action such as opening a file or clicking a link is required; the flaw is triggered by driver initialization under attacker-influenced memory conditions.\nS:U - Impact remains within the host kernel\u2019s security authority as standard kernel heap corruption / potential privilege escalation, with no VM escape, IOMMU bypass, or other security-boundary crossing.\nC:H - The bug is a kernel double-free of the adev-\u003epm.dpm.ps heap object (UAF-class memory corruption); reclaiming the freed slab can yield arbitrary read primitives.\nI:H - Double-free freelist corruption in the kernel allocator can be abused for overlapping objects and arbitrary write / control-flow hijacking, enabling full integrity compromise.\nA:H - The double-free reliably corrupts kernel heap state and can oops/panic the kernel or otherwise deny service even when not fully exploited for code execution."
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            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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              "url": "https://git.kernel.org/stable/c/8b55b06e737feb2a645b0293ea27e38418876d63"
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              "url": "https://git.kernel.org/stable/c/28dd788382c43b330480f57cd34cde0840896743"
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        "assignerShortName": "Linux",
        "cveId": "CVE-2023-52469",
        "datePublished": "2024-02-25T08:16:33.016Z",
        "dateReserved": "2024-02-20T12:30:33.297Z",
        "dateUpdated": "2026-08-05T09:10:06.350Z",
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}



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