{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53171", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.389Z", "datePublished": "2026-06-25T08:38:49.392Z", "dateUpdated": "2026-06-28T06:39:43.532Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-28T06:39:43.532Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ethosu: fix arithmetic issues in dma_length()\n\ndma_length() derives DMA region usage from command stream values and\nupdates region_size[]:\n\n len = ((len + stride[0]) * size0 + stride[1]) * size1\n region_size[region] = max(..., len + dma->offset)\n\nSeveral arithmetic issues can corrupt the derived region size:\n\n- signed stride values may underflow when added to len\n- intermediate multiplications may overflow\n- len + dma->offset may overflow during region_size updates\n- dma_length() error returns were not validated by the caller\n\nregion_size[] is later used by ethosu_job.c to validate command stream\naccesses against GEM buffer sizes. Arithmetic wraparound can therefore\nunder-report region usage and bypass the bounds validation.\n\nFix by validating signed additions, using overflow helpers for\nmultiplications and offset updates, and propagating dma_length()\nfailures to the caller."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/accel/ethosu/ethosu_gem.c"], "versions": [{"version": "5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b", "lessThan": "6bb73845d1855ceaf50e397175e5979a7bdf69bc", "status": "affected", "versionType": "git"}, {"version": "5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b", "lessThan": "ee6d9b6e51626f259c6f0e38d94f91be4fd14754", "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/accel/ethosu/ethosu_gem.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.13", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.19", "versionEndExcluding": "7.0.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6bb73845d1855ceaf50e397175e5979a7bdf69bc"}, {"url": "https://git.kernel.org/stable/c/ee6d9b6e51626f259c6f0e38d94f91be4fd14754"}], "title": "accel/ethosu: fix arithmetic issues in dma_length()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: accel/ethosu: fix arithmetic issues in dma_length()", "id": "2492731", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492731"}, "csaw": false, "cwe": "CWE-190", "details": ["A flaw was found in the Linux kernel's accel/ethosu driver. The dma_length() function, responsible for calculating Direct Memory Access (DMA) region usage, contains several arithmetic issues. These issues, including potential underflows and overflows during calculations, can lead to an under-reporting of memory region sizes. This under-reporting can bypass crucial bounds validation checks, potentially allowing an attacker to access memory outside of its intended boundaries."], "name": "CVE-2026-53171", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53171\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53171\nhttps://lore.kernel.org/linux-cve-announce/2026062552-CVE-2026-53171-acfd@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b,6bb73845d1855ceaf50e397175e5979a7bdf69bc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b,ee6d9b6e51626f259c6f0e38d94f91be4fd14754)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.13,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-25T11:45:03.802490+00:00", "updated": "2026-06-28T15:00:12.190920+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}