{"dataType":"CVE_RECORD","cveMetadata":{"cveId":"CVE-2023-52469","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-20T12:30:33.297Z","datePublished":"2024-02-25T08:16:33.016Z","dateUpdated":"2026-08-05T09:10:06.350Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T09:10:06.350Z"},"descriptions":[{"lang":"en","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->pm.dpm.ps that allocated before. However, after the control\nflow goes through the following call chains:\n\nkv_parse_power_table\n  |-> kv_dpm_init\n        |-> kv_dpm_sw_init\n\t      |-> kv_dpm_fini\n\nThe adev->pm.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."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The vulnerable path runs only during amdgpu PCI/DRM device software init (amdgpu_device_ip_init → kv_dpm_sw_init → kv_dpm_init → 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->pm.dpm.ps followed by kv_dpm_fini’s 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’s 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’s 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->pm.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."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c"],"versions":[{"version":"a2e73f56fa6282481927ec43aa9362c03c2e2104","lessThan":"8a27d9d9fc9b5564b8904c3a77a7dea482bfa34e","status":"affected","versionType":"git"},{"version":"a2e73f56fa6282481927ec43aa9362c03c2e2104","lessThan":"8b55b06e737feb2a645b0293ea27e38418876d63","status":"affected","versionType":"git"},{"version":"a2e73f56fa6282481927ec43aa9362c03c2e2104","lessThan":"520e213a0b97b64735a13950e9371e0a5d7a5dc3","status":"affected","versionType":"git"},{"version":"a2e73f56fa6282481927ec43aa9362c03c2e2104","lessThan":"b6dcba02ee178282e0d28684d241e0b8462dea6a","status":"affected","versionType":"git"},{"version":"a2e73f56fa6282481927ec43aa9362c03c2e2104","lessThan":"35fa2394d26e919f63600ce631e6aefc95ec2706","status":"affected","versionType":"git"},{"version":"a2e73f56fa6282481927ec43aa9362c03c2e2104","lessThan":"95084632a65d5c0d682a83b55935560bdcd2a1e3","status":"affected","versionType":"git"},{"version":"a2e73f56fa6282481927ec43aa9362c03c2e2104","lessThan":"3426f059eacc33ecc676b0d66539297e1cfafd02","status":"affected","versionType":"git"},{"version":"a2e73f56fa6282481927ec43aa9362c03c2e2104","lessThan":"28dd788382c43b330480f57cd34cde0840896743","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c"],"versions":[{"version":"4.2","status":"affected"},{"version":"0","lessThan":"4.2","status":"unaffected","versionType":"semver"},{"version":"4.19.306","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.268","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.209","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.148","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.75","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.14","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7.2","lessThanOrEqual":"6.7.*","status":"unaffected","versionType":"semver"},{"version":"6.8","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"4.19.306"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.4.268"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.10.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.15.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.1.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.6.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.7.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.8"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/8a27d9d9fc9b5564b8904c3a77a7dea482bfa34e"},{"url":"https://git.kernel.org/stable/c/8b55b06e737feb2a645b0293ea27e38418876d63"},{"url":"https://git.kernel.org/stable/c/520e213a0b97b64735a13950e9371e0a5d7a5dc3"},{"url":"https://git.kernel.org/stable/c/b6dcba02ee178282e0d28684d241e0b8462dea6a"},{"url":"https://git.kernel.org/stable/c/35fa2394d26e919f63600ce631e6aefc95ec2706"},{"url":"https://git.kernel.org/stable/c/95084632a65d5c0d682a83b55935560bdcd2a1e3"},{"url":"https://git.kernel.org/stable/c/3426f059eacc33ecc676b0d66539297e1cfafd02"},{"url":"https://git.kernel.org/stable/c/28dd788382c43b330480f57cd34cde0840896743"}],"title":"drivers/amd/pm: 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