CVE-2026-99010

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99010", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.385Z", "datePublished": "2026-10-23T12:20:35.485Z", "dateUpdated": "2026-10-30T12:40:55.508Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:40:55.508Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: free the skb when the DLC has no owner\n\nrfcomm_recv_data() hands the skb to d->data_ready() and returns 0\nwithout freeing it, so the callback owns the skb from that point on.\nThe tty implementation frees it when the DLC has been detached from its\ndevice:\n\n static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc,\n struct sk_buff *skb)\n {\n struct rfcomm_dev *dev = dlc->owner;\n\n if (!dev) {\n kfree_skb(skb);\n return;\n }\n\nThe socket implementation returns without freeing it, and the skb is\nleaked.\n\nA connected DLC can have no owner: rfcomm_sock_destruct() clears\nd->owner, while the DLC itself stays on the session until it is closed.\nData frames that arrive in that window still find d->state ==\nBT_CONNECTED in rfcomm_recv_data() and are handed to the callback, one\nleaked skb each.\n\nThe leak does not stop on its own either. The remote runs out of\ncredits only once RFCOMM_RX_THROTTLED is set, and for a socket the only\nplace that sets it is rfcomm_sk_data_ready() itself, below the return.\nrfcomm_process_dlcs() keeps granting credits, so the remote keeps\nsending and the leak keeps growing.\n\nFree the skb, as the tty side does."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/rfcomm/sock.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "05145638e0db770267c39615c8ce51ab058e34cf", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "91492e9194f3b10bc1eb50683ac440b74a487e39", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "a835b7f445427c7bdfc7169a97e0a1bec375e408", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "a54ce160e3ef7e50ec94e0ac4131c3d0f9f739b9", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "c3f76b025cbbb0ab47310dbe7de18092d89f2a99", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "4f46de658ce61968aef5ea7ae809d1c180330544", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "b8814161b14c610b7a09527433301d8ad8180aef", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "9d1afbf60ed53c5b051cd124153e0ae3078c8b93", "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/rfcomm/sock.c"], "versions": [{"version": "2.6.12", "status": "affected"}, {"version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.273", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.224", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.11", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "2.6.12", "versionEndExcluding": "5.10.273"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.15.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "7.2.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/05145638e0db770267c39615c8ce51ab058e34cf"}, {"url": "https://git.kernel.org/stable/c/91492e9194f3b10bc1eb50683ac440b74a487e39"}, {"url": "https://git.kernel.org/stable/c/a835b7f445427c7bdfc7169a97e0a1bec375e408"}, {"url": "https://git.kernel.org/stable/c/a54ce160e3ef7e50ec94e0ac4131c3d0f9f739b9"}, {"url": "https://git.kernel.org/stable/c/c3f76b025cbbb0ab47310dbe7de18092d89f2a99"}, {"url": "https://git.kernel.org/stable/c/4f46de658ce61968aef5ea7ae809d1c180330544"}, {"url": "https://git.kernel.org/stable/c/b8814161b14c610b7a09527433301d8ad8180aef"}, {"url": "https://git.kernel.org/stable/c/9d1afbf60ed53c5b051cd124153e0ae3078c8b93"}], "title": "Bluetooth: RFCOMM: free the skb when the DLC has no owner", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/bluetooth/rfcomm/sock.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "05145638e0db770267c39615c8ce51ab058e34cf", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "91492e9194f3b10bc1eb50683ac440b74a487e39", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "a835b7f445427c7bdfc7169a97e0a1bec375e408", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "a54ce160e3ef7e50ec94e0ac4131c3d0f9f739b9", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "c3f76b025cbbb0ab47310dbe7de18092d89f2a99", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "4f46de658ce61968aef5ea7ae809d1c180330544", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "b8814161b14c610b7a09527433301d8ad8180aef", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "9d1afbf60ed53c5b051cd124153e0ae3078c8b93", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/bluetooth/rfcomm/sock.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": "5.10.273", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.224", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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: RFCOMM: free the skb when the DLC has no owner\n\nrfcomm_recv_data() hands the skb to d->data_ready() and returns 0\nwithout freeing it, so the callback owns the skb from that point on.\nThe tty implementation frees it when the DLC has been detached from its\ndevice:\n\n static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc,\n struct sk_buff *skb)\n {\n struct rfcomm_dev *dev = dlc->owner;\n\n if (!dev) {\n kfree_skb(skb);\n return;\n }\n\nThe socket implementation returns without freeing it, and the skb is\nleaked.\n\nA connected DLC can have no owner: rfcomm_sock_destruct() clears\nd->owner, while the DLC itself stays on the session until it is closed.\nData frames that arrive in that window still find d->state ==\nBT_CONNECTED in rfcomm_recv_data() and are handed to the callback, one\nleaked skb each.\n\nThe leak does not stop on its own either. The remote runs out of\ncredits only once RFCOMM_RX_THROTTLED is set, and for a socket the only\nplace that sets it is rfcomm_sk_data_ready() itself, below the return.\nrfcomm_process_dlcs() keeps granting credits, so the remote keeps\nsending and the leak keeps growing.\n\nFree the skb, as the tty side does."}], "id": "CVE-2026-99010", "lastModified": "2026-10-30T13:21:36.900", "metrics": {}, "published": "2026-10-23T13:17:23.620", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/05145638e0db770267c39615c8ce51ab058e34cf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4f46de658ce61968aef5ea7ae809d1c180330544"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/91492e9194f3b10bc1eb50683ac440b74a487e39"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9d1afbf60ed53c5b051cd124153e0ae3078c8b93"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a54ce160e3ef7e50ec94e0ac4131c3d0f9f739b9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a835b7f445427c7bdfc7169a97e0a1bec375e408"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b8814161b14c610b7a09527433301d8ad8180aef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c3f76b025cbbb0ab47310dbe7de18092d89f2a99"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Bluetooth: RFCOMM: free the skb when the DLC has no owner", "id": "2559772", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559772"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: RFCOMM: free the skb when the DLC has no owner\nrfcomm_recv_data() hands the skb to d->data_ready() and returns 0\nwithout freeing it, so the callback owns the skb from that point on.\nThe tty implementation frees it when the DLC has been detached from its\ndevice:\nstatic void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc,\nstruct sk_buff *skb)\n{\nstruct rfcomm_dev *dev = dlc->owner;\nif (!dev) {\nkfree_skb(skb);\nreturn;\n}\nThe socket implementation returns without freeing it, and the skb is\nleaked.\nA connected DLC can have no owner: rfcomm_sock_destruct() clears\nd->owner, while the DLC itself stays on the session until it is closed.\nData frames that arrive in that window still find d->state ==\nBT_CONNECTED in rfcomm_recv_data() and are handed to the callback, one\nleaked skb each.\nThe leak does not stop on its own either. The remote runs out of\ncredits only once RFCOMM_RX_THROTTLED is set, and for a socket the only\nplace that sets it is rfcomm_sk_data_ready() itself, below the return.\nrfcomm_process_dlcs() keeps granting credits, so the remote keeps\nsending and the leak keeps growing.\nFree the skb, as the tty side does.", "A flaw was found in the Linux kernel's Bluetooth Radio Frequency Communication (RFCOMM) subsystem. When a communication socket is closed while the underlying connection session remains active, incoming data packets are not released from memory. A remote attacker can exploit this vulnerability by continuously transmitting data during socket teardown, causing an unbounded memory leak that results in kernel resource exhaustion and a Denial of Service (DoS)."], "name": "CVE-2026-99010", "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": "Out of support scope", "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"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99010\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99010\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99010.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,a54ce160e3ef7e50ec94e0ac4131c3d0f9f739b9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,c3f76b025cbbb0ab47310dbe7de18092d89f2a99)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,4f46de658ce61968aef5ea7ae809d1c180330544)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,b8814161b14c610b7a09527433301d8ad8180aef)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,9d1afbf60ed53c5b051cd124153e0ae3078c8b93)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.160,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.57,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,a54ce160e3ef7e50ec94e0ac4131c3d0f9f739b9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,c3f76b025cbbb0ab47310dbe7de18092d89f2a99)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,4f46de658ce61968aef5ea7ae809d1c180330544)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,b8814161b14c610b7a09527433301d8ad8180aef)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,9d1afbf60ed53c5b051cd124153e0ae3078c8b93)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.160,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.57,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-23T15:30:14.847311+00:00", "updated": "2026-10-29T21:30:15.938827+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"]}