{"api_version":"1","generated_at":"2026-06-24T12:16:56+00:00","cve":"CVE-2026-52918","urls":{"html":"https://cve.report/CVE-2026-52918","api":"https://cve.report/api/cve/CVE-2026-52918.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-52918","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-52918"},"summary":{"title":"Bluetooth: serialize accept_q access","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: serialize accept_q access\n\nbt_sock_poll() walks the accept queue without synchronization, while\nchild teardown can unlink the same socket and drop its last reference.\nThe unsynchronized accept queue walk has existed since the initial\nBluetooth import.\n\nProtect accept_q with a dedicated lock for queue updates and polling.\nAlso rework bt_accept_dequeue() to take temporary child references under\nthe queue lock before dropping it and locking the child socket.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-24 08:16:21","updated_at":"2026-06-24 08:16:21"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c","name":"https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336","name":"https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274c","name":"https://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88","name":"https://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5","name":"https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1","name":"https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3","name":"https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a","name":"https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-52918","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52918","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 d9ce4de05df2385c19e2c7d12f529144e1a44af1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 41c8c1c7923e86e0eb59cfb4279349112756a336 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 4ec17782fd186f901a7329605d11048b085b945a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 be43e6b4043113c3b3cf887c3c8350f67140274c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.210 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.176 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.142 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.92 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.34 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.11 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/net/bluetooth/bluetooth.h","net/bluetooth/af_bluetooth.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d9ce4de05df2385c19e2c7d12f529144e1a44af1","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"41c8c1c7923e86e0eb59cfb4279349112756a336","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"4ec17782fd186f901a7329605d11048b085b945a","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"be43e6b4043113c3b3cf887c3c8350f67140274c","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"85f8674cae82053f1e6bab295f6a8422cca14db5","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"8b4c412e001b0c670eb937beab491af974da55b3","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"a218bf69eb51fefe59a3976fa8925261141f681c","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"e83f5e24da741fa9405aeeff00b08c5ee7c37b88","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["include/net/bluetooth/bluetooth.h","net/bluetooth/af_bluetooth.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.142","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.259","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.210","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.142","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.92","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.34","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.11","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"2.6.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: serialize accept_q access\n\nbt_sock_poll() walks the accept queue without synchronization, while\nchild teardown can unlink the same socket and drop its last reference.\nThe unsynchronized accept queue walk has existed since the initial\nBluetooth import.\n\nProtect accept_q with a dedicated lock for queue updates and polling.\nAlso rework bt_accept_dequeue() to take temporary child references under\nthe queue lock before dropping it and locking the child socket."}],"providerMetadata":{"dateUpdated":"2026-06-24T07:14:14.539Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1"},{"url":"https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336"},{"url":"https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a"},{"url":"https://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274c"},{"url":"https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5"},{"url":"https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3"},{"url":"https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c"},{"url":"https://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88"}],"title":"Bluetooth: serialize accept_q access","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-52918","datePublished":"2026-06-24T07:14:14.539Z","dateReserved":"2026-06-09T07:44:35.367Z","dateUpdated":"2026-06-24T07:14:14.539Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 08:16:21","lastModifiedDate":"2026-06-24 08:16:21","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"52918","Ordinal":"1","Title":"Bluetooth: serialize accept_q access","CVE":"CVE-2026-52918","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"52918","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: serialize accept_q access\n\nbt_sock_poll() walks the accept queue without synchronization, while\nchild teardown can unlink the same socket and drop its last reference.\nThe unsynchronized accept queue walk has existed since the initial\nBluetooth import.\n\nProtect accept_q with a dedicated lock for queue updates and polling.\nAlso rework bt_accept_dequeue() to take temporary child references under\nthe queue lock before dropping it and locking the child socket.","Type":"Description","Title":"Bluetooth: serialize accept_q access"}]}}}