{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-93040",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-17T15:57:05.657Z",
        "datePublished": "2026-09-17T16:10:33.499Z",
        "dateUpdated": "2026-10-19T09:04:35.266Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:04:35.266Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: dw-edma: Serialize channel state checks\n\npause() and resume() read and update channel state without holding vc.lock,\nwhile the interrupt handlers update the same state under it. Take the same\nlock around those state checks so that request, status, and configured stay\nconsistent.\n\nFor example, pause() can observe EDMA_ST_BUSY right before the interrupt\nhandler completes the final descriptor and moves the channel to\nEDMA_ST_IDLE, and then record EDMA_REQ_PAUSE on an already idle channel. No\nfurther interrupt will acknowledge the request, and since issue_pending()\nrequires EDMA_REQ_NONE, the channel is wedged for good: terminate_all()\nleaves the stale request behind, so even reconfiguring the channel does not\nrecover it.\n\nissue_pending() already runs under vc.lock, but it tests configured before\ntaking it. Move that test under the lock as well, so configured, request,\nand status are evaluated as one channel-state snapshot."
                }
            ],
            "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.c"
                    ],
                    "versions": [
                        {
                            "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
                            "lessThan": "be0072af8ce6e9458cc586e0e8b41a251e7d4316",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
                            "lessThan": "2d76b91deeab973dd8a8c2ee587ce27f881de768",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
                            "lessThan": "3001cfcee30dcc81f8b3774319c12067f126e49a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
                            "lessThan": "b6293a8a38f4d5866ce1a264c138265a02e4c53a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
                            "lessThan": "da16a02f0998a0d455ce6265b836b29ad92e6e58",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
                            "lessThan": "fe0ffa0190e862ed71e8c1a476090f648c9cb7d9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
                            "lessThan": "6fc436e1500c5e4f0dde2a3dbadf6d898057be8f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
                            "lessThan": "f7d1619f3e10c619b62c6cd6d95371b5c526c85a",
                            "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/dma/dw-edma/dw-edma-core.c"
                    ],
                    "versions": [
                        {
                            "version": "5.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "5.3",
                                    "versionEndExcluding": "5.10.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "5.15.221"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/be0072af8ce6e9458cc586e0e8b41a251e7d4316"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2d76b91deeab973dd8a8c2ee587ce27f881de768"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3001cfcee30dcc81f8b3774319c12067f126e49a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b6293a8a38f4d5866ce1a264c138265a02e4c53a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/da16a02f0998a0d455ce6265b836b29ad92e6e58"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fe0ffa0190e862ed71e8c1a476090f648c9cb7d9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6fc436e1500c5e4f0dde2a3dbadf6d898057be8f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f7d1619f3e10c619b62c6cd6d95371b5c526c85a"
                }
            ],
            "title": "dmaengine: dw-edma: Serialize channel state checks",
            "x_generator": {
                "engine": "bippy-1.2.0"
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    }
}