CVE-2026-53252

{"id": "CVE-2026-53252", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "90dee0a0ff84fac8accd5be98412b3819f667149", "lessThan": "5b7dfca6f852e6b9d809fd0263b5427cc9fb33fd", "versionType": "git"}, {"status": "affected", "version": "c56b177efce8b62798e4d96bdb9867106cb7c4a0", "lessThan": "c016118b9e51eeaf5bc93850d4c455a3b583c0aa", "versionType": "git"}, {"status": "affected", "version": "bc0819a25e04cd68ef3568cfa51b63118fea39a7", "lessThan": "0622e527a31d4b44737fed5c1a2ac1fc2cfb5184", "versionType": "git"}, {"status": "affected", "version": "ce23b73f0f27e2dbeb81734a79db710f05aa33c6", "lessThan": "bc2efe73c194a74839d7cf57b63880d97e21d309", "versionType": "git"}, {"status": "affected", "version": "1d6123102e9fbedc8d25bf4731da6d513173e49e", "lessThan": "ce4b4cac3c5749b6aa75e62e2991ae2263f2f889", "versionType": "git"}, {"status": "affected", "version": "1d6123102e9fbedc8d25bf4731da6d513173e49e", "lessThan": "f82799407a50af7bcacacf09cc9b279af8fe9b81", "versionType": "git"}, {"status": "affected", "version": "1d6123102e9fbedc8d25bf4731da6d513173e49e", "lessThan": "37b3009bf5976e8ab77c8b9a9bc3bbd7ff49e37f", "versionType": "git"}, {"status": "affected", "version": "dd4becd3fd4102696e1c15e6d260a1712a2d8685", "versionType": "git"}, {"status": "affected", "version": "0e5c144c557df910ab64d9c25d06399a9a735e65", "versionType": "git"}, {"status": "affected", "version": "5.15.209", "lessThan": "5.15.210", "versionType": "semver"}, {"status": "affected", "version": "6.1.167", "lessThan": "6.1.176", "versionType": "semver"}, {"status": "affected", "version": "6.6.97", "lessThan": "6.6.143", "versionType": "semver"}, {"status": "affected", "version": "6.12.36", "lessThan": "6.12.94", "versionType": "semver"}, {"status": "affected", "version": "5.10.259", "lessThan": "5.11", "versionType": "semver"}, {"status": "affected", "version": "6.15.5", "lessThan": "6.16", "versionType": "semver"}], "programFiles": ["net/bluetooth/hci_sysfs.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"status": "unaffected", "version": "0", "lessThan": "6.16", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.210", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.176", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.143", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.94", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.36", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.13", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/bluetooth/hci_sysfs.c"], "defaultStatus": "affected"}]}], "published": "2026-06-25T09:16:43.137", "references": [{"url": "https://git.kernel.org/stable/c/0622e527a31d4b44737fed5c1a2ac1fc2cfb5184", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/37b3009bf5976e8ab77c8b9a9bc3bbd7ff49e37f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5b7dfca6f852e6b9d809fd0263b5427cc9fb33fd", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bc2efe73c194a74839d7cf57b63880d97e21d309", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c016118b9e51eeaf5bc93850d4c455a3b583c0aa", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ce4b4cac3c5749b6aa75e62e2991ae2263f2f889", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f82799407a50af7bcacacf09cc9b279af8fe9b81", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-401"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: fix memory leak in error path of hci_alloc_dev()\n\nEarly failures in Bluetooth HCI UART configuration leak SRCU percpu\nmemory.\n\nWhen device initialization fails before hci_register_dev() completes,\nthe HCI_UNREGISTER flag is never set. As a result, when the device\nreference count reaches zero, bt_host_release() evaluates this flag as\nfalse and falls back to a direct kfree(hdev).\n\nBecause hci_release_dev() is bypassed, the SRCU struct initialized\nearly in hci_alloc_dev() is never cleaned up, resulting in a leak of\npercpu memory.\n\nFix the leak by explicitly calling cleanup_srcu_struct() in the\nfallback (unregistered) branch of bt_host_release() before freeing\nthe device."}], "lastModified": "2026-07-08T16:48:59.550", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "52F60680-8824-4BB5-AF9B-B593D23018AE", "versionEndExcluding": "5.11", "versionStartIncluding": "5.10.259"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EA4D47D7-0677-4EA5-A70C-E66CDE321414", "versionEndExcluding": "6.1.176", "versionStartIncluding": "6.1.167"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C5F210A-4D29-4A1A-A880-4FECCDC57247", "versionEndExcluding": "6.6.143", "versionStartIncluding": "6.6.97"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "34DC91E5-0FE4-476B-907F-F40D3F5F1197", "versionEndExcluding": "6.12.94", "versionStartIncluding": "6.12.36"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D10C9120-0117-4346-95CC-E5D06B9133C4", "versionEndExcluding": "6.16", "versionStartIncluding": "6.15.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1A9D8D37-BEDC-49CA-9E82-4D6B11A5675C", "versionEndExcluding": "6.18.36", "versionStartIncluding": "6.16.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6A64BF9F-3BCA-42FD-98CB-8F03474D2B1E", "versionEndExcluding": "7.0.13", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15.209:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "06EE5040-044C-46B4-B840-27D15DB507EC"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6238B17D-C12B-458F-A138-97039BFC4595"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A0517869-312D-4429-80C2-561086E1421C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "85421F4E-C863-4ABF-B4B4-E887CC2F7F92"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3827F0D4-5FEE-4181-B267-5A45E7CA11FC"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A9C2DE5-43B8-4D73-BDB5-EA55C7671A52"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E5910A9D-F60A-409A-B486-FE66BFEBA9B9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "81DFF19E-9CF8-49C6-8C36-1E4038622933"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B0E8FC71-3952-444C-83E9-718DBBBEC615"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}