CVE-2026-90253

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: free the mesh send cancel command when it is cancelled mesh_send_cancel() queues the pending command with a NULL destroy callback, so it is only freed if send_cancel() runs. A cancelled entry is leaked, as _hci_cmd_sync_cancel_entry() does not release entry->data when there is no destroy callback, and hci_cmd_sync_clear() cancels every pending entry when the controller is unregistered. Nothing else reclaims it either: mgmt_pending_new() does not put the command on hdev->mgmt_pending. The leak also pins the socket reference taken by mgmt_pending_new(), so the mgmt socket is never released. Free the command from a destroy callback.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/05438d338a875a9daa08ca3f6a35b4480cf13de4
https://git.kernel.org/stable/c/3c742feda8fcabf741a17bcf668b63c8f606f9c5
https://git.kernel.org/stable/c/416fabca9b7237b76aa9cafcf8c497b8ac00d88c
https://git.kernel.org/stable/c/88e30d036d777b00aed42bd35000de23ff40910c
https://git.kernel.org/stable/c/b609341ee56967d9a45845ff26f79336d2114b55
https://git.kernel.org/stable/c/fa46d428c014e7b72a18634679815670418e67dc

Configurations

No configuration.

History

17 Sep 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:17

Updated : 2026-09-17 17:17

NVD link : CVE-2026-90253

Mitre link : CVE-2026-90253

CVE.ORG link : CVE-2026-90253

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-90253", "cveTags": [], "metrics": {}, "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": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "b609341ee56967d9a45845ff26f79336d2114b55", "versionType": "git"}, {"status": "affected", "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "416fabca9b7237b76aa9cafcf8c497b8ac00d88c", "versionType": "git"}, {"status": "affected", "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "88e30d036d777b00aed42bd35000de23ff40910c", "versionType": "git"}, {"status": "affected", "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "05438d338a875a9daa08ca3f6a35b4480cf13de4", "versionType": "git"}, {"status": "affected", "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "fa46d428c014e7b72a18634679815670418e67dc", "versionType": "git"}, {"status": "affected", "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "3c742feda8fcabf741a17bcf668b63c8f606f9c5", "versionType": "git"}], "programFiles": ["net/bluetooth/mgmt.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.1"}, {"status": "unaffected", "version": "0", "lessThan": "6.1", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.188", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.157", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.110", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.52", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.2.6", "versionType": "semver", "lessThanOrEqual": "7.2.*"}, {"status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/bluetooth/mgmt.c"], "defaultStatus": "affected"}]}], "published": "2026-09-17T17:17:21.607", "references": [{"url": "https://git.kernel.org/stable/c/05438d338a875a9daa08ca3f6a35b4480cf13de4", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3c742feda8fcabf741a17bcf668b63c8f606f9c5", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/416fabca9b7237b76aa9cafcf8c497b8ac00d88c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/88e30d036d777b00aed42bd35000de23ff40910c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b609341ee56967d9a45845ff26f79336d2114b55", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fa46d428c014e7b72a18634679815670418e67dc", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: free the mesh send cancel command when it is cancelled\n\nmesh_send_cancel() queues the pending command with a NULL destroy\ncallback, so it is only freed if send_cancel() runs. A cancelled entry is\nleaked, as _hci_cmd_sync_cancel_entry() does not release entry->data when\nthere is no destroy callback, and hci_cmd_sync_clear() cancels every\npending entry when the controller is unregistered. Nothing else reclaims\nit either: mgmt_pending_new() does not put the command on\nhdev->mgmt_pending.\n\nThe leak also pins the socket reference taken by mgmt_pending_new(), so\nthe mgmt socket is never released.\n\nFree the command from a destroy callback."}], "lastModified": "2026-09-17T17:17:21.607", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}