{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-38581", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-18T19:36:34.927Z", "datePublished": "2024-06-19T13:37:38.509Z", "dateUpdated": "2026-08-05T11:32:57.888Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:32:57.888Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/mes: fix use-after-free issue\n\nDelete fence fallback timer to fix the ramdom\nuse-after-free issue.\n\nv2: move to amdgpu_mes.c" } ], "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 lives in the amdgpu GPU driver and is reached through local device access — opening/ioctl'ing /dev/dri/renderD* triggers pm_runtime_get_sync(), and the resulting runtime-PM resume runs amdgpu_mes_self_test(). There is no network-facing component.\nAC:L - The attacker drives both sides of the timer-versus-free race: they trigger the MES self-test arbitrarily often via runtime PM cycles, and they control GPU load so the IB test times out — the path on which the fallback timer is left deterministically armed across kfree(ring). Repeated attempts are free and unlimited.\nPR:L - A basic unprivileged local user with access to the DRM render node (default on desktop/laptop distros via the render group or logind ACLs) can open the device and force runtime suspend/resume cycles; no capabilities or root are needed.\nUI:N - The attacker self-triggers the runtime-PM resume that runs the self-test through its own open()/ioctl() calls; no victim action such as a manual suspend or file open is required.\nS:U - The use-after-free corrupts kernel heap memory within the same kernel security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The freed struct amdgpu_ring comes from a generic kmalloc cache reclaimable by attacker-sprayed data, and the timer callback dereferences ring->adev, ring->fence_drv.fences[] and fence->ops from it, allowing attacker-directed reads of arbitrary kernel memory.\nI:H - The callback performs atomic_cmpxchg() and RCU_INIT_POINTER() writes into the freed object and makes indirect calls through fence->ops read out of reclaimed memory, yielding write and control-flow-hijack primitives; freeing an armed timer_list also corrupts the timer base list.\nA:H - Even unweaponized, the fallback timer firing on freed memory produces a use-after-free oops/panic or timer-list corruption, and it can be re-triggered on every resume cycle." } ] } ], "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/amdgpu/amdgpu_mes.c" ], "versions": [ { "version": "8c5e13ec6a2c26d31d0551dc382661dc10823be0", "lessThan": "70b1bf6d9edc8692d241f59a65f073aec6d501de", "status": "affected", "versionType": "git" }, { "version": "8c5e13ec6a2c26d31d0551dc382661dc10823be0", "lessThan": "39cfce75168c11421d70b8c0c65f6133edccb82a", "status": "affected", "versionType": "git" }, { "version": "8c5e13ec6a2c26d31d0551dc382661dc10823be0", "lessThan": "0f98c144c15c8fc0f3176c994bd4e727ef718a5c", "status": "affected", "versionType": "git" }, { "version": "8c5e13ec6a2c26d31d0551dc382661dc10823be0", "lessThan": "948255282074d9367e01908b3f5dcf8c10fc9c3d", "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/amdgpu/amdgpu_mes.c" ], "versions": [ { "version": "4.20", "status": "affected" }, { "version": "0", "lessThan": "4.20", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.93", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.33", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.8.12", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9", "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": "4.20", "versionEndExcluding": "6.1.93" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.6.33" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.8.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.9" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/70b1bf6d9edc8692d241f59a65f073aec6d501de" }, { "url": "https://git.kernel.org/stable/c/39cfce75168c11421d70b8c0c65f6133edccb82a" }, { "url": "https://git.kernel.org/stable/c/0f98c144c15c8fc0f3176c994bd4e727ef718a5c" }, { "url": "https://git.kernel.org/stable/c/948255282074d9367e01908b3f5dcf8c10fc9c3d" } ], "title": "drm/amdgpu/mes: fix use-after-free issue", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2024-06-20T14:58:15.450879Z", "id": "CVE-2024-38581", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-20T14:58:23.883Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:12:25.835Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/70b1bf6d9edc8692d241f59a65f073aec6d501de", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/39cfce75168c11421d70b8c0c65f6133edccb82a", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/0f98c144c15c8fc0f3176c994bd4e727ef718a5c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/948255282074d9367e01908b3f5dcf8c10fc9c3d", "tags": [ "x_transferred" ] } ] } ] } }