{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-47354", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T14:28:16.986Z", "datePublished": "2024-05-21T14:35:57.772Z", "dateUpdated": "2026-08-11T02:05:17.211Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-11T02:05:17.211Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/sched: Avoid data corruptions\n\nWait for all dependencies of a job to complete before\nkilling it to avoid data corruptions." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "baseScore": 7.1, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - Exploitation requires local access to a DRM render node (/dev/dri/renderD*) and GPU job submission ioctls; the vulnerable kill path runs on entity teardown after close or process exit, not from network packet processing.\nAC:L - An attacker can reliably trigger the bug by submitting jobs that depend on a fence they control (or a long-running prior job), then closing the DRM fd so flush times out, or exiting with SIGKILL so remaining queued jobs are killed without dependency waits.\nPR:L - Render nodes are usable by unprivileged users (render/video group on desktops, app GPU access on Android); no root or init-namespace capabilities are required to open the device and submit jobs.\nUI:N - The attacker performs submission and teardown themselves; no separate victim action is required to hit the kill path or to cause device-wide GPU faults/resets.\nS:U - Impact stays within the host kernel/GPU device authority (corrupted GPU buffers and possible GPU reset); this is not a VM escape, IOMMU bypass, or other cross-boundary scope change.\nC:N - The defect is broken fence ordering that races GPU accesses and corrupts buffer contents; it does not provide a new arbitrary read or confidential-memory disclosure primitive beyond data already reachable via shared mappings.\nI:H - Signaling a job finished and freeing it before its dependencies complete breaks the dma-resv/implicit-sync chain, so other clients' jobs can run concurrently with unfinished dependent GPU work and corrupt shared or subsequently synchronized GPU buffers.\nA:H - The resulting conflicting GPU accesses can induce GPU page faults, hangs, and device resets that deny graphics/compute availability system-wide for other users of the same 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/scheduler/sched_entity.c" ], "versions": [ { "version": "79867462634836ee5c39a2cdf624719feeb189bd", "lessThan": "c32d0f0e164ffab2a56c7cf8e612584b4b740e2e", "status": "affected", "versionType": "git" }, { "version": "79867462634836ee5c39a2cdf624719feeb189bd", "lessThan": "0687411e2a8858262de2fc4a1d576016fd77292e", "status": "affected", "versionType": "git" }, { "version": "79867462634836ee5c39a2cdf624719feeb189bd", "lessThan": "a8e23e3c1ff9ec598ab1b3a941ace6045027781f", "status": "affected", "versionType": "git" }, { "version": "79867462634836ee5c39a2cdf624719feeb189bd", "lessThan": "50d7e03ad487cc45fc85164a299b945a41756ac0", "status": "affected", "versionType": "git" }, { "version": "79867462634836ee5c39a2cdf624719feeb189bd", "lessThan": "0b10ab80695d61422337ede6ff496552d8ace99d", "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/scheduler/sched_entity.c" ], "versions": [ { "version": "4.15", "status": "affected" }, { "version": "0", "lessThan": "4.15", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.133", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.51", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.12.18", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.13.3", "lessThanOrEqual": "5.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.14", "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": "4.15", "versionEndExcluding": "5.4.133" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.10.51" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.12.18" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.13.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.14" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/c32d0f0e164ffab2a56c7cf8e612584b4b740e2e" }, { "url": "https://git.kernel.org/stable/c/0687411e2a8858262de2fc4a1d576016fd77292e" }, { "url": "https://git.kernel.org/stable/c/a8e23e3c1ff9ec598ab1b3a941ace6045027781f" }, { "url": "https://git.kernel.org/stable/c/50d7e03ad487cc45fc85164a299b945a41756ac0" }, { "url": "https://git.kernel.org/stable/c/0b10ab80695d61422337ede6ff496552d8ace99d" } ], "title": "drm/sched: Avoid data corruptions", 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