CVE-2026-72148

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72148", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.908Z", "datePublished": "2026-08-15T05:53:19.921Z", "dateUpdated": "2026-08-23T12:46:52.752Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-23T12:46:52.752Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK\n\nThe DONE_INT_MASK and ABORT_INT_MASK registers are shared by all DMA\nchannels, and modifying them requires a read-modify-write sequence.\nBecause this operation is not atomic, concurrent calls to\ndw_edma_v0_core_start() can introduce race conditions if two channels\nupdate these registers simultaneously.\n\nAdd a spinlock to serialize access to these registers and prevent race\nconditions.\n\n[den: update dw_edma.lock comment]"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:A - On PCIe endpoint SoCs (R-Car Gen4, DWC EP) the dw-edma v0 engine is driven when a physically connected PCIe root host initiates endpoint DMA (e.g. pci-epf-mhi); that host peer needs no network path to the victim, fitting Adjacent attack vector.\nAC:L - The race needs only two eDMA channels starting their first chunk concurrently; an attacker controls both sides by issuing parallel DMA requests or timing concurrent completions, with no luck-dependent layout or rare config.\nPR:N - In the highest-impact PCIe EP deployment a malicious or compromised upstream host triggers concurrent endpoint DMA through BAR/MHI traffic without any local Linux credentials, shell, or CAP_* on the vulnerable endpoint system.\nUI:N - Exploitation is fully automated once the attacker can submit concurrent DMA operations; no victim user action such as mounting filesystems or opening files is required.\nS:C - Corrupted shared DONE/ABORT masks and linked-list error enables on an endpoint can disrupt PCIe DMA to/from upstream host memory, impacting resources outside the endpoint kernel security authority across the PCIe boundary.\nC:L - Lost interrupt unmasking can leave host-visible DMA buffers partially updated or stall reads, enabling limited cross-boundary disclosure of in-flight or stale data rather than arbitrary kernel memory read primitives.\nI:L - Register corruption can disable linked-list error detection and desynchronize DMA completion handling, causing limited unintended modification of host or device DMA buffers even though addresses are normally driver-controlled.\nA:H - A lost DONE/ABORT unmask leaves channels permanently BUSY with completions never delivered, wedging dmaengine clients and endpoint services until reboot, constituting a severe availability failure."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/dma/dw-edma/dw-edma-core.h", "drivers/dma/dw-edma/dw-edma-v0-core.c"], "versions": [{"version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "lessThan": "3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2", "status": "affected", "versionType": "git"}, {"version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "lessThan": "f60c7463d44fbc1585d247d0bd6976f7a1099472", "status": "affected", "versionType": "git"}, {"version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "lessThan": "2247cc25a91fb1b5b86586ed55fdd5b725a7477c", "status": "affected", "versionType": "git"}, {"version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "lessThan": "3ee0f478bb29b4ee892b178179a9a76ddd194149", "status": "affected", 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{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/dma/dw-edma/dw-edma-core.h", "drivers/dma/dw-edma/dw-edma-v0-core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2", "status": "affected", "version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "versionType": "git"}, {"lessThan": "f60c7463d44fbc1585d247d0bd6976f7a1099472", "status": "affected", "version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "versionType": "git"}, {"lessThan": "2247cc25a91fb1b5b86586ed55fdd5b725a7477c", "status": "affected", "version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "versionType": "git"}, {"lessThan": "3ee0f478bb29b4ee892b178179a9a76ddd194149", "status": "affected", "version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "versionType": "git"}, {"lessThan": "21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1", "status": "affected", "version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "versionType": "git"}, {"lessThan": "ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640", "status": "affected", "version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "versionType": "git"}, {"lessThan": "1553ca96e9df158d8f37137cf4bf5fb0dc981d94", "status": "affected", "version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "versionType": "git"}, {"lessThan": "8ffba0171c6bbce5f093c6dba5a02c0805b31203", "status": "affected", "version": "7e4b8a4fbe2cecab0959e862604803d063f50029", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/dma/dw-edma/dw-edma-core.h", "drivers/dma/dw-edma/dw-edma-v0-core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.3"}, {"lessThan": "5.3", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.266", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.217", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK\n\nThe DONE_INT_MASK and ABORT_INT_MASK registers are shared by all DMA\nchannels, and modifying them requires a read-modify-write sequence.\nBecause this operation is not atomic, concurrent calls to\ndw_edma_v0_core_start() can introduce race conditions if two channels\nupdate these registers simultaneously.\n\nAdd a spinlock to serialize access to these registers and prevent race\nconditions.\n\n[den: update dw_edma.lock comment]"}], "id": "CVE-2026-72148", "lastModified": "2026-08-23T13:16:40.570", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.3, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-08-15T06:21:32.483", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1553ca96e9df158d8f37137cf4bf5fb0dc981d94"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2247cc25a91fb1b5b86586ed55fdd5b725a7477c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3ee0f478bb29b4ee892b178179a9a76ddd194149"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8ffba0171c6bbce5f093c6dba5a02c0805b31203"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f60c7463d44fbc1585d247d0bd6976f7a1099472"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK", "id": "2516714", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516714"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-820", "details": ["A flaw was found in the Linux kernel's dmaengine component, specifically in the dw-edma driver. This flaw occurs because the DONE_INT_MASK and ABORT_INT_MASK registers, which are shared by all Direct Memory Access (DMA) channels, are modified using a non-atomic read-modify-write sequence. Concurrent calls to `dw_edma_v0_core_start()` can lead to a race condition if multiple channels attempt to update these registers simultaneously, potentially causing system instability or a denial of service."], "name": "CVE-2026-72148", "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72148\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72148\nhttps://lore.kernel.org/linux-cve-announce/2026081533-CVE-2026-72148-bdce@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7e4b8a4fbe2cecab0959e862604803d063f50029,2247cc25a91fb1b5b86586ed55fdd5b725a7477c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7e4b8a4fbe2cecab0959e862604803d063f50029,3ee0f478bb29b4ee892b178179a9a76ddd194149)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7e4b8a4fbe2cecab0959e862604803d063f50029,21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7e4b8a4fbe2cecab0959e862604803d063f50029,ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7e4b8a4fbe2cecab0959e862604803d063f50029,1553ca96e9df158d8f37137cf4bf5fb0dc981d94)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7e4b8a4fbe2cecab0959e862604803d063f50029,8ffba0171c6bbce5f093c6dba5a02c0805b31203)"}}], "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": "5.3"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.3)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*)"}}], "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": "2026-08-15T09:30:04.899202+00:00", "updated": "2026-08-22T11:30:17.157233+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}