CVE-2026-74304

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74304", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.882Z", "datePublished": "2026-08-15T05:58:05.981Z", "dateUpdated": "2026-09-25T14:44:24.813Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-25T14:44:24.813Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device\n\nhu->serdev is NULL for hci_uart attached via non-serdev paths, but\nqca_setup() unconditionally calls serdev_device_get_drvdata(hu->serdev)\nand dereferences the result, causing a NULL pointer dereference.\n\nFix by guarding the dereference with a NULL check, consistent with the\nrest of qca_setup()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/bluetooth/hci_qca.c"], "versions": [{"version": "7812a441617ad7cf3e62281d3fa518d2ba17c100", "lessThan": "74f179e75ab03bdc818a5e9709d8a8440c351463", "status": "affected", "versionType": "git"}, {"version": "22d893eec0d52fa97d25d3de248285648f26ef68", "lessThan": "0704c04769ccc1a0939682db35d816dfa5fe75dc", "status": "affected", "versionType": "git"}, {"version": "22d893eec0d52fa97d25d3de248285648f26ef68", "lessThan": "3ec629fee178d429f01ae843e4ea888de93012bf", "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/bluetooth/hci_qca.c"], "versions": [{"version": "7.0", "status": "affected"}, {"version": "0", "lessThan": "7.0", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "7.0", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/74f179e75ab03bdc818a5e9709d8a8440c351463"}, {"url": "https://git.kernel.org/stable/c/0704c04769ccc1a0939682db35d816dfa5fe75dc"}, {"url": "https://git.kernel.org/stable/c/3ec629fee178d429f01ae843e4ea888de93012bf"}], "title": "Bluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/bluetooth/hci_qca.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "74f179e75ab03bdc818a5e9709d8a8440c351463", "status": "affected", "version": "7812a441617ad7cf3e62281d3fa518d2ba17c100", "versionType": "git"}, {"lessThan": "0704c04769ccc1a0939682db35d816dfa5fe75dc", "status": "affected", "version": "22d893eec0d52fa97d25d3de248285648f26ef68", "versionType": "git"}, {"lessThan": "3ec629fee178d429f01ae843e4ea888de93012bf", "status": "affected", "version": "22d893eec0d52fa97d25d3de248285648f26ef68", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/bluetooth/hci_qca.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.0"}, {"lessThan": "7.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device\n\nhu->serdev is NULL for hci_uart attached via non-serdev paths, but\nqca_setup() unconditionally calls serdev_device_get_drvdata(hu->serdev)\nand dereferences the result, causing a NULL pointer dereference.\n\nFix by guarding the dereference with a NULL check, consistent with the\nrest of qca_setup()."}], "id": "CVE-2026-74304", "lastModified": "2026-09-25T15:17:55.293", "metrics": {}, "published": "2026-08-15T06:22:30.037", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0704c04769ccc1a0939682db35d816dfa5fe75dc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3ec629fee178d429f01ae843e4ea888de93012bf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/74f179e75ab03bdc818a5e9709d8a8440c351463"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Bluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device", "id": "2516895", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516895"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device\nhu->serdev is NULL for hci_uart attached via non-serdev paths, but\nqca_setup() unconditionally calls serdev_device_get_drvdata(hu->serdev)\nand dereferences the result, causing a NULL pointer dereference.\nFix by guarding the dereference with a NULL check, consistent with the\nrest of qca_setup().", "A flaw was found in the Bluetooth subsystem of the Linux kernel, specifically within the `hci_qca` module. This vulnerability occurs when the `qca_setup()` function is called for `hci_uart` devices connected through non-serdev paths, leading to a NULL pointer dereference. A local attacker could potentially exploit this to cause a system crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-74304", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74304\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74304\nhttps://lore.kernel.org/linux-cve-announce/2026081550-CVE-2026-74304-1b61@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[22d893eec0d52fa97d25d3de248285648f26ef68,0704c04769ccc1a0939682db35d816dfa5fe75dc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[22d893eec0d52fa97d25d3de248285648f26ef68,3ec629fee178d429f01ae843e4ea888de93012bf)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1.5,7.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T17:30:11.724439+00:00", "updated": "2026-08-22T00:45:05.366203+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-476", "CWE-758"]}