{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-21780", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.764Z", "datePublished": "2025-02-27T02:18:23.543Z", "dateUpdated": "2026-08-05T11:54:22.764Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:54:22.764Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()\n\nIt malicious user provides a small pptable through sysfs and then\na bigger pptable, it may cause buffer overflow attack in function\nsmu_sys_set_pp_table()." } ], "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 vulnerability is reached exclusively by writing to the local sysfs attribute /sys/class/drm/cardN/device/pp_table; there is no remote or adjacent-network path to smu_sys_set_pp_table().\nAC:L - Triggering is fully deterministic — write a tiny pptable whose 16-bit usStructureSize matches the write length, then write a larger one; there is no race, no ASLR dependency, and the attacker chooses both the allocation size and the overflow length/content.\nPR:L - The attribute is 0644 by default, but on AMD desktop/handheld/gaming deployments the amdgpu pp_* power-tuning nodes are routinely made group-writable via udev rules so unprivileged GUI overclocking tools can use them, and the fix's own changelog describes the attacker as a \"malicious user\"; per the choose-higher rule this is scored as an unprivileged local user rather than init-namespace root.\nUI:N - The attacker performs two ordinary write() calls on their own; no victim action, mount, or file-open by another user is involved.\nS:U - The heap corruption occurs in the kernel's own slab allocator and is confined to the kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Beyond the write primitive, the stale power_play_table_size makes amdgpu_get_pp_table() memcpy up to PAGE_SIZE-1 bytes out of a 1-byte allocation straight back to userspace, directly disclosing ~4 KB of adjacent kernel heap; the overflow itself also enables arbitrary read via corrupted adjacent objects.\nI:H - This is an out-of-bounds heap write of up to ~4 KB with fully attacker-chosen contents starting from a kmalloc-8 object, smashing many adjacent slab objects — a classic primitive for function-pointer/credential overwrite and privilege escalation.\nA:H - Overwriting kilobytes of adjacent slab objects and freelist metadata reliably produces slab corruption panics/oopses, and smu_reset() is then invoked with the corrupted power-play table, hanging or wedging the GPU." } ] } ], "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/swsmu/amdgpu_smu.c" ], "versions": [ { "version": "137d63abbf6a0859e79b662e81d21170ecb75e59", "lessThan": "3484ea33157bc7334f57e64826ec5a4bf992151a", "status": "affected", "versionType": "git" }, { "version": "137d63abbf6a0859e79b662e81d21170ecb75e59", "lessThan": "e43a8b9c4d700ffec819c5043a48769b3e7d9cab", "status": "affected", "versionType": "git" }, { "version": "137d63abbf6a0859e79b662e81d21170ecb75e59", "lessThan": "2498d2db1d35e88a2060ea191ae75dce853dd084", "status": "affected", "versionType": "git" }, { "version": "137d63abbf6a0859e79b662e81d21170ecb75e59", "lessThan": "231075c5a8ea54f34b7c4794687baa980814e6de", "status": "affected", "versionType": "git" }, { "version": "137d63abbf6a0859e79b662e81d21170ecb75e59", "lessThan": "1abb2648698bf10783d2236a6b4a7ca5e8021699", "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/swsmu/amdgpu_smu.c" ], "versions": [ { "version": "5.2", "status": "affected" }, { "version": "0", "lessThan": "5.2", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.129", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.79", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.16", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13.4", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.14", "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": "5.2", "versionEndExcluding": "6.1.129" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.6.79" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.12.16" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.13.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.14" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/3484ea33157bc7334f57e64826ec5a4bf992151a" }, { "url": "https://git.kernel.org/stable/c/e43a8b9c4d700ffec819c5043a48769b3e7d9cab" }, { "url": "https://git.kernel.org/stable/c/2498d2db1d35e88a2060ea191ae75dce853dd084" }, { "url": "https://git.kernel.org/stable/c/231075c5a8ea54f34b7c4794687baa980814e6de" }, { "url": "https://git.kernel.org/stable/c/1abb2648698bf10783d2236a6b4a7ca5e8021699" } ], "title": "drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2025-21780", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:30:25.628048Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-120", "description": "CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:36:40.157Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:59:26.137Z" } }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-07-14T12:40:07.535Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html" } ] } ] } }