CVE-2026-45835

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb() Add the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_sock_ready_cb().

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0a120d96166301d7a95be75b52f843837dbd1219	Patch
https://git.kernel.org/stable/c/140b63cb46f2855ac4ec8fba2f1e974a9c2974e8	Patch
https://git.kernel.org/stable/c/2422eaed0925973c0f318c94eb13e76f14c7381e	Patch
https://git.kernel.org/stable/c/684a1f9ee2325437ae18ac5371884e4c6a25ae73	Patch
https://git.kernel.org/stable/c/741e6024e31587b0c021b6616a9e428a4ea0b64a	Patch
https://git.kernel.org/stable/c/76083fb80f5a38ac13326b2d810f66bd07771eea	Patch
https://git.kernel.org/stable/c/ab77c8bc30269bee15d917059a66bea48909f5f0	Patch
https://git.kernel.org/stable/c/bc3bb9f40da8e53896abc2d29c6d0c6686fe4ab9	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc2::::::

History

No history.

Information

Published : 2026-05-26 17:16

Updated : 2026-07-24 11:10

NVD link : CVE-2026-45835

Mitre link : CVE-2026-45835

CVE.ORG link : CVE-2026-45835

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

{"id": "CVE-2026-45835", "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": "80808e431e1ef25856457de82ce141bed6a6313a", "lessThan": "140b63cb46f2855ac4ec8fba2f1e974a9c2974e8", "versionType": "git"}, {"status": "affected", "version": "80808e431e1ef25856457de82ce141bed6a6313a", "lessThan": "2422eaed0925973c0f318c94eb13e76f14c7381e", "versionType": "git"}, {"status": "affected", "version": "80808e431e1ef25856457de82ce141bed6a6313a", "lessThan": "684a1f9ee2325437ae18ac5371884e4c6a25ae73", "versionType": "git"}, {"status": "affected", "version": "80808e431e1ef25856457de82ce141bed6a6313a", "lessThan": "ab77c8bc30269bee15d917059a66bea48909f5f0", "versionType": "git"}, {"status": "affected", "version": "80808e431e1ef25856457de82ce141bed6a6313a", "lessThan": "bc3bb9f40da8e53896abc2d29c6d0c6686fe4ab9", "versionType": "git"}, {"status": "affected", "version": "80808e431e1ef25856457de82ce141bed6a6313a", "lessThan": "741e6024e31587b0c021b6616a9e428a4ea0b64a", "versionType": "git"}, {"status": "affected", "version": "80808e431e1ef25856457de82ce141bed6a6313a", "lessThan": "76083fb80f5a38ac13326b2d810f66bd07771eea", "versionType": "git"}, {"status": "affected", "version": "80808e431e1ef25856457de82ce141bed6a6313a", "lessThan": "0a120d96166301d7a95be75b52f843837dbd1219", "versionType": "git"}], "programFiles": ["net/bluetooth/l2cap_sock.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.1"}, {"status": "unaffected", "version": "0", "lessThan": "3.1", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.258", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.209", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.175", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.140", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.88", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.30", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.7", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/bluetooth/l2cap_sock.c"], "defaultStatus": "affected"}]}], "published": "2026-05-26T17:16:48.227", "references": [{"url": "https://git.kernel.org/stable/c/0a120d96166301d7a95be75b52f843837dbd1219", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/140b63cb46f2855ac4ec8fba2f1e974a9c2974e8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/2422eaed0925973c0f318c94eb13e76f14c7381e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/684a1f9ee2325437ae18ac5371884e4c6a25ae73", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/741e6024e31587b0c021b6616a9e428a4ea0b64a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/76083fb80f5a38ac13326b2d810f66bd07771eea", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ab77c8bc30269bee15d917059a66bea48909f5f0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bc3bb9f40da8e53896abc2d29c6d0c6686fe4ab9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb()\n\nAdd the same NULL guard already present in\nl2cap_sock_resume_cb() and l2cap_sock_ready_cb()."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nBluetooth: L2CAP: Solucionar desreferencia de puntero nulo en l2cap_sock_new_connection_cb()\n\nA\u00f1adir la misma protecci\u00f3n NULL ya presente en l2cap_sock_resume_cb() y l2cap_sock_ready_cb()."}], "lastModified": "2026-07-24T11:10:00.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B5F925AF-0571-45EB-B3C7-3046B450381F", "versionEndExcluding": "5.10.258", "versionStartIncluding": "3.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "919C10A9-7951-4A74-BADD-C135A0A8D8B4", "versionEndExcluding": "5.15.209", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92385813-D91D-480D-83A1-F423D2CBB2BA", "versionEndExcluding": "6.1.175", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1A92866-F406-43B5-B2D1-CFC274753E9D", "versionEndExcluding": "6.6.140", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5AFBE0EC-CCDF-4207-AE92-ABF958125CA4", "versionEndExcluding": "6.12.88", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF39AE08-AE6D-4410-8FBE-76F6BF5BF55B", "versionEndExcluding": "6.18.30", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D0893CA7-9AE6-4DFE-AC75-48967D73AD8E", "versionEndExcluding": "7.0.7", "versionStartIncluding": "6.19"}, {"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"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}