{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31399", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.085Z", "datePublished": "2026-04-03T15:16:03.246Z", "dateUpdated": "2026-04-03T15:16:03.246Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-03T15:16:03.246Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvdimm/bus: Fix potential use after free in asynchronous initialization\n\nDingisoul with KASAN reports a use after free if device_add() fails in\nnd_async_device_register().\n\nCommit b6eae0f61db2 (\"libnvdimm: Hold reference on parent while\nscheduling async init\") correctly added a reference on the parent device\nto be held until asynchronous initialization was complete. However, if\ndevice_add() results in an allocation failure the ref count of the\ndevice drops to 0 prior to the parent pointer being accessed. Thus\nresulting in use after free.\n\nThe bug bot AI correctly identified the fix. Save a reference to the\nparent pointer to be used to drop the parent reference regardless of the\noutcome of device_add()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nvdimm/bus.c"], "versions": [{"version": "b6eae0f61db27748606cc00dafcfd1e2c032f0a5", "lessThan": "9a0fb16ba5b372465a3a1ecd761c6fa911a4ab4d", "status": "affected", "versionType": "git"}, {"version": "b6eae0f61db27748606cc00dafcfd1e2c032f0a5", "lessThan": "e48bf8f1d2b12c1c5ba1f609edbd4cde5dadc20e", "status": "affected", "versionType": "git"}, {"version": "b6eae0f61db27748606cc00dafcfd1e2c032f0a5", "lessThan": "2c638259ad750833fd46a0cf57672a618542d84c", "status": "affected", "versionType": "git"}, {"version": "b6eae0f61db27748606cc00dafcfd1e2c032f0a5", "lessThan": "a226e5b49e5fe8c98b14f8507de670189d191348", "status": "affected", "versionType": "git"}, {"version": "b6eae0f61db27748606cc00dafcfd1e2c032f0a5", "lessThan": "84af19855d1abdee3c9d57c0684e2868e391793c", "status": "affected", "versionType": "git"}, {"version": "b6eae0f61db27748606cc00dafcfd1e2c032f0a5", "lessThan": "a8aec14230322ed8f1e8042b6d656c1631d41163", "status": "affected", "versionType": "git"}, {"version": "8954771abdea5c34280870e35592c7226a816d95", "status": "affected", "versionType": "git"}, {"version": "3e63a7f25cc85d3d3e174b9b0e3489ebb7eaf4ab", "status": "affected", "versionType": "git"}, {"version": "1490de2bb0836fc0631c04d0559fdf81545b672f", "status": "affected", "versionType": "git"}, {"version": "e31a8418c8df7e6771414f99ed3d95ba8aca4e05", "status": "affected", "versionType": "git"}, {"version": "4f1a55a4f990016406147cf3e0c9487bf83e50f0", "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/nvdimm/bus.c"], "versions": [{"version": "4.20", "status": "affected"}, {"version": "0", "lessThan": "4.20", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.167", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.130", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.78", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.20", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.10", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0-rc5", "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": "6.1.167"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.6.130"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.12.78"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.18.20"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.19.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.0-rc5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.164"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.137"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.81"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9a0fb16ba5b372465a3a1ecd761c6fa911a4ab4d"}, {"url": "https://git.kernel.org/stable/c/e48bf8f1d2b12c1c5ba1f609edbd4cde5dadc20e"}, {"url": "https://git.kernel.org/stable/c/2c638259ad750833fd46a0cf57672a618542d84c"}, {"url": "https://git.kernel.org/stable/c/a226e5b49e5fe8c98b14f8507de670189d191348"}, {"url": "https://git.kernel.org/stable/c/84af19855d1abdee3c9d57c0684e2868e391793c"}, {"url": "https://git.kernel.org/stable/c/a8aec14230322ed8f1e8042b6d656c1631d41163"}], "title": "nvdimm/bus: Fix potential use after free in asynchronous initialization", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvdimm/bus: Fix potential use after free in asynchronous initialization\n\nDingisoul with KASAN reports a use after free if device_add() fails in\nnd_async_device_register().\n\nCommit b6eae0f61db2 (\"libnvdimm: Hold reference on parent while\nscheduling async init\") correctly added a reference on the parent device\nto be held until asynchronous initialization was complete. However, if\ndevice_add() results in an allocation failure the ref count of the\ndevice drops to 0 prior to the parent pointer being accessed. Thus\nresulting in use after free.\n\nThe bug bot AI correctly identified the fix. Save a reference to the\nparent pointer to be used to drop the parent reference regardless of the\noutcome of device_add()."}], "id": "CVE-2026-31399", "lastModified": "2026-04-03T16:16:38.410", "metrics": {}, "published": "2026-04-03T16:16:38.410", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2c638259ad750833fd46a0cf57672a618542d84c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/84af19855d1abdee3c9d57c0684e2868e391793c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9a0fb16ba5b372465a3a1ecd761c6fa911a4ab4d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a226e5b49e5fe8c98b14f8507de670189d191348"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a8aec14230322ed8f1e8042b6d656c1631d41163"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e48bf8f1d2b12c1c5ba1f609edbd4cde5dadc20e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}