{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45834", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.077Z", "datePublished": "2026-05-26T16:14:11.198Z", "dateUpdated": "2026-05-26T16:14:11.198Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-26T16:14:11.198Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb()\n\nAdd the same NULL guard already present in\nl2cap_sock_resume_cb() and l2cap_sock_ready_cb()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/l2cap_sock.c"], "versions": [{"version": "89bc500e41fc5b48e0573e6b0d927fc97b8951dc", "lessThan": "5105f3e6b2df619c635b5f6a49fac131a36c7952", "status": "affected", "versionType": "git"}, {"version": "89bc500e41fc5b48e0573e6b0d927fc97b8951dc", "lessThan": "c88c185ae0a1067823661b220aeea613df2c127b", "status": "affected", "versionType": "git"}, {"version": "89bc500e41fc5b48e0573e6b0d927fc97b8951dc", "lessThan": "1810e42ff6716f320c7269d5850eca48b07b7427", "status": "affected", "versionType": "git"}, {"version": "89bc500e41fc5b48e0573e6b0d927fc97b8951dc", "lessThan": "a2dcf1a61d056aef15b63c6eae9441344d624389", "status": "affected", "versionType": "git"}, {"version": "89bc500e41fc5b48e0573e6b0d927fc97b8951dc", "lessThan": "2ff1a41a912de8517b4482e946dd951b7d80edbf", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/l2cap_sock.c"], "versions": [{"version": "3.1", "status": "affected"}, {"version": "0", "lessThan": "3.1", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.88", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc3", "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": "3.1", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "6.12.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "6.18.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "7.1-rc3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5105f3e6b2df619c635b5f6a49fac131a36c7952"}, {"url": "https://git.kernel.org/stable/c/c88c185ae0a1067823661b220aeea613df2c127b"}, {"url": "https://git.kernel.org/stable/c/1810e42ff6716f320c7269d5850eca48b07b7427"}, {"url": "https://git.kernel.org/stable/c/a2dcf1a61d056aef15b63c6eae9441344d624389"}, {"url": "https://git.kernel.org/stable/c/2ff1a41a912de8517b4482e946dd951b7d80edbf"}], "title": "Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb()\n\nAdd the same NULL guard already present in\nl2cap_sock_resume_cb() and l2cap_sock_ready_cb()."}], "id": "CVE-2026-45834", "lastModified": "2026-05-26T20:06:20.310", "metrics": {}, "published": "2026-05-26T17:16:48.073", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1810e42ff6716f320c7269d5850eca48b07b7427"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2ff1a41a912de8517b4482e946dd951b7d80edbf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5105f3e6b2df619c635b5f6a49fac131a36c7952"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a2dcf1a61d056aef15b63c6eae9441344d624389"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c88c185ae0a1067823661b220aeea613df2c127b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb()", "id": "2481554", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481554"}, "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-476", "details": ["A flaw was found in the Linux kernel's Bluetooth L2CAP (Logical Link Control and Adaptation Protocol) implementation. A missing null pointer guard in the `l2cap_sock_state_change_cb()` function can lead to a null pointer dereference. This vulnerability could allow an attacker to cause a system crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-45834", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-45834\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45834\nhttps://lore.kernel.org/linux-cve-announce/2026052627-CVE-2026-45834-79da@gregkh/T"], "threat_severity": "Moderate"}