CVE-2024-26801

{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2024-26801", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.179Z", "datePublished": "2024-04-04T08:20:29.211Z", "dateUpdated": "2026-08-05T11:27:22.708Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:27:22.708Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Avoid potential use-after-free in hci_error_reset\n\nWhile handling the HCI_EV_HARDWARE_ERROR event, if the underlying\nBT controller is not responding, the GPIO reset mechanism would\nfree the hci_dev and lead to a use-after-free in hci_error_reset.\n\nHere's the call trace observed on a ChromeOS device with Intel AX201:\n queue_work_on+0x3e/0x6c\n __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>]\n ? init_wait_entry+0x31/0x31\n __hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>]\n hci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>]\n process_one_work+0x1d8/0x33f\n worker_thread+0x21b/0x373\n kthread+0x13a/0x152\n ? pr_cont_work+0x54/0x54\n ? kthread_blkcg+0x31/0x31\n ret_from_fork+0x1f/0x30\n\nThis patch holds the reference count on the hci_dev while processing\na HCI_EV_HARDWARE_ERROR event to avoid potential crash."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:A - The `HCI_EV_HARDWARE_ERROR` event that queues `hci_error_reset` is emitted by the Bluetooth controller, and an attacker within Bluetooth radio range can induce a controller firmware exception (the well-documented BrakTooth-class malformed-LMP faults) to generate it while simultaneously leaving the controller unresponsive, which is the exact precondition for the reset/unregister race. This is radio-proximity access, not routable network access.\nAC:L - Once the controller is wedged, the sequence is effectively deterministic: `btintel_hw_error()` blocks for two full `HCI_INIT_TIMEOUT` intervals while `hci_cmd_timeout()` counts to five and fires the GPIO reset, so the race window in which `hci_error_reset` runs against `hci_unregister_dev`/`hci_release_dev` is seconds wide and both sides are driven by the same attacker-induced controller failure. The bug was reproducible enough to be observed in the field on shipping ChromeOS/Intel AX201 hardware.\nPR:N - An over-the-air attacker needs no pairing, bonding, authentication, or any account on the target \u2014 malformed link-layer traffic that faults the controller firmware is processed before any credential check. No host-side privileges are involved at all since the triggering event arrives from the controller.\nUI:N - No victim action is required; the hardware error event, the command timeouts, the GPIO reset and the resulting USB disconnect/unregister all occur automatically inside the kernel once the controller faults.\nS:U - The use-after-free corrupts kernel heap memory within the same security authority as the vulnerable code; no VM, hypervisor, or IOMMU boundary is crossed.\nC:H - `hci_release_dev()` frees `hdev->workqueue` (and ultimately `kfree(hdev)`) while `hci_error_reset` is still executing, so `queue_work_on()` reads `wq->flags` and `wq->cpu_pwq` out of a freed slab object the attacker can groom by reclaiming it, yielding a kernel-memory read primitive and disclosure of adjacent heap contents and pointers.\nI:H - After the freed `workqueue_struct` is reclaimed with attacker-controlled data, `queue_work_on()` performs a list insertion into the pool worklist derived from that freed memory, giving a controlled write primitive suitable for corrupting adjacent kernel objects and hijacking control flow; the stale `hdev` is likewise written through by the continuing close/open sequence.\nA:H - The confirmed use-after-free reliably oopses or panics the kernel (the reported crash in `queue_work_on` from `hci_error_reset`), and the freed/destroyed workqueue also strands the subsequent `destroy_workqueue(hdev->req_workqueue)` drain, permanently wedging the Bluetooth stack."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_core.c"], "versions": [{"version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "e0b278650f07acf2e0932149183458468a731c03", "status": "affected", "versionType": "git"}, {"version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "98fb98fd37e42fd4ce13ff657ea64503e24b6090", "status": "affected", "versionType": "git"}, {"version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2", "status": "affected", "versionType": "git"}, {"version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "da4569d450b193e39e87119fd316c0291b585d14", "status": "affected", "versionType": "git"}, {"version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "45085686b9559bfbe3a4f41d3d695a520668f5e1", "status": "affected", "versionType": "git"}, {"version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "2ab9a19d896f5a0dd386e1f001c5309bc35f433b", "status": "affected", "versionType": "git"}, {"version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "dd594cdc24f2e48dab441732e6dfcafd6b0711d1", "status": "affected", "versionType": "git"}, {"version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "2449007d3f73b2842c9734f45f0aadb522daf592", "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/hci_core.c"], "versions": [{"version": "4.0", "status": "affected"}, {"version": "0", "lessThan": "4.0", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.309", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.271", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.212", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.151", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.81", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.21", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7.9", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8", "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": "4.0", "versionEndExcluding": "4.19.309"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.0", "versionEndExcluding": "5.4.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.0", "versionEndExcluding": "5.10.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.0", "versionEndExcluding": "5.15.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.0", "versionEndExcluding": "6.1.81"}, {"vulnerable": true, "criteria": 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"https://git.kernel.org/stable/c/dd594cdc24f2e48dab441732e6dfcafd6b0711d1"}, {"url": "https://git.kernel.org/stable/c/2449007d3f73b2842c9734f45f0aadb522daf592"}], "title": "Bluetooth: Avoid potential use-after-free in hci_error_reset", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:14:13.522Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/e0b278650f07acf2e0932149183458468a731c03", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/98fb98fd37e42fd4ce13ff657ea64503e24b6090", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/da4569d450b193e39e87119fd316c0291b585d14", "tags": ["x_transferred"]}, {"url": 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"134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-08-15T19:27:19.532Z"}}]}, "dataVersion": "5.2"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/e0b278650f07acf2e0932149183458468a731c03", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/98fb98fd37e42fd4ce13ff657ea64503e24b6090", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/da4569d450b193e39e87119fd316c0291b585d14", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/45085686b9559bfbe3a4f41d3d695a520668f5e1", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2ab9a19d896f5a0dd386e1f001c5309bc35f433b", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/dd594cdc24f2e48dab441732e6dfcafd6b0711d1", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2449007d3f73b2842c9734f45f0aadb522daf592", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:14:13.522Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-26801", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-08-15T19:27:12.303916Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-08-15T19:27:16.874Z"}}], "cna": {"title": "Bluetooth: Avoid potential use-after-free in hci_error_reset", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:A - The `HCI_EV_HARDWARE_ERROR` event that queues `hci_error_reset` is emitted by the Bluetooth controller, and an attacker within Bluetooth radio range can induce a controller firmware exception (the well-documented BrakTooth-class malformed-LMP faults) to generate it while simultaneously leaving the controller unresponsive, which is the exact precondition for the reset/unregister race. This is radio-proximity access, not routable network access.\nAC:L - Once the controller is wedged, the sequence is effectively deterministic: `btintel_hw_error()` blocks for two full `HCI_INIT_TIMEOUT` intervals while `hci_cmd_timeout()` counts to five and fires the GPIO reset, so the race window in which `hci_error_reset` runs against `hci_unregister_dev`/`hci_release_dev` is seconds wide and both sides are driven by the same attacker-induced controller failure. The bug was reproducible enough to be observed in the field on shipping ChromeOS/Intel AX201 hardware.\nPR:N - An over-the-air attacker needs no pairing, bonding, authentication, or any account on the target \u2014 malformed link-layer traffic that faults the controller firmware is processed before any credential check. No host-side privileges are involved at all since the triggering event arrives from the controller.\nUI:N - No victim action is required; the hardware error event, the command timeouts, the GPIO reset and the resulting USB disconnect/unregister all occur automatically inside the kernel once the controller faults.\nS:U - The use-after-free corrupts kernel heap memory within the same security authority as the vulnerable code; no VM, hypervisor, or IOMMU boundary is crossed.\nC:H - `hci_release_dev()` frees `hdev->workqueue` (and ultimately `kfree(hdev)`) while `hci_error_reset` is still executing, so `queue_work_on()` reads `wq->flags` and `wq->cpu_pwq` out of a freed slab object the attacker can groom by reclaiming it, yielding a kernel-memory read primitive and disclosure of adjacent heap contents and pointers.\nI:H - After the freed `workqueue_struct` is reclaimed with attacker-controlled data, `queue_work_on()` performs a list insertion into the pool worklist derived from that freed memory, giving a controlled write primitive suitable for corrupting adjacent kernel objects and hijacking control flow; the stale `hdev` is likewise written through by the continuing close/open sequence.\nA:H - The confirmed use-after-free reliably oopses or panics the kernel (the reported crash in `queue_work_on` from `hci_error_reset`), and the freed/destroyed workqueue also strands the subsequent `destroy_workqueue(hdev->req_workqueue)` drain, permanently wedging the Bluetooth stack."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "e0b278650f07acf2e0932149183458468a731c03", "versionType": "git"}, {"status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "98fb98fd37e42fd4ce13ff657ea64503e24b6090", "versionType": "git"}, {"status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2", "versionType": "git"}, {"status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "da4569d450b193e39e87119fd316c0291b585d14", "versionType": "git"}, {"status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "45085686b9559bfbe3a4f41d3d695a520668f5e1", "versionType": "git"}, {"status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "2ab9a19d896f5a0dd386e1f001c5309bc35f433b", "versionType": "git"}, {"status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "dd594cdc24f2e48dab441732e6dfcafd6b0711d1", "versionType": "git"}, {"status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "lessThan": "2449007d3f73b2842c9734f45f0aadb522daf592", "versionType": "git"}], "programFiles": ["net/bluetooth/hci_core.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.0"}, {"status": "unaffected", "version": "0", "lessThan": "4.0", "versionType": "semver"}, {"status": "unaffected", "version": "4.19.309", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.271", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.212", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.151", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.81", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.21", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.7.9", "versionType": "semver", "lessThanOrEqual": "6.7.*"}, {"status": "unaffected", "version": "6.8", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/bluetooth/hci_core.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/e0b278650f07acf2e0932149183458468a731c03"}, {"url": "https://git.kernel.org/stable/c/98fb98fd37e42fd4ce13ff657ea64503e24b6090"}, {"url": "https://git.kernel.org/stable/c/6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2"}, {"url": "https://git.kernel.org/stable/c/da4569d450b193e39e87119fd316c0291b585d14"}, {"url": "https://git.kernel.org/stable/c/45085686b9559bfbe3a4f41d3d695a520668f5e1"}, {"url": "https://git.kernel.org/stable/c/2ab9a19d896f5a0dd386e1f001c5309bc35f433b"}, {"url": "https://git.kernel.org/stable/c/dd594cdc24f2e48dab441732e6dfcafd6b0711d1"}, {"url": "https://git.kernel.org/stable/c/2449007d3f73b2842c9734f45f0aadb522daf592"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Avoid potential use-after-free in hci_error_reset\n\nWhile handling the HCI_EV_HARDWARE_ERROR event, if the underlying\nBT controller is not responding, the GPIO reset mechanism would\nfree the hci_dev and lead to a use-after-free in hci_error_reset.\n\nHere's the call trace observed on a ChromeOS device with Intel AX201:\n queue_work_on+0x3e/0x6c\n __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>]\n ? init_wait_entry+0x31/0x31\n __hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>]\n hci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>]\n process_one_work+0x1d8/0x33f\n worker_thread+0x21b/0x373\n kthread+0x13a/0x152\n ? pr_cont_work+0x54/0x54\n ? kthread_blkcg+0x31/0x31\n ret_from_fork+0x1f/0x30\n\nThis patch holds the reference count on the hci_dev while processing\na HCI_EV_HARDWARE_ERROR event to avoid potential crash."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.309", "versionStartIncluding": "4.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.271", "versionStartIncluding": "4.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.212", "versionStartIncluding": "4.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.151", "versionStartIncluding": "4.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.81", "versionStartIncluding": "4.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.21", "versionStartIncluding": "4.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.7.9", "versionStartIncluding": "4.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.8", "versionStartIncluding": "4.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:27:22.708Z"}}}, "cveMetadata": {"cveId": "CVE-2024-26801", "state": "PUBLISHED", "dateUpdated": "2026-08-05T11:27:22.708Z", "dateReserved": "2024-02-19T14:20:24.179Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-04-04T08:20:29.211Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/bluetooth/hci_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "e0b278650f07acf2e0932149183458468a731c03", "status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "versionType": "git"}, {"lessThan": "98fb98fd37e42fd4ce13ff657ea64503e24b6090", "status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "versionType": "git"}, {"lessThan": "6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2", "status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "versionType": "git"}, {"lessThan": "da4569d450b193e39e87119fd316c0291b585d14", "status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "versionType": "git"}, {"lessThan": "45085686b9559bfbe3a4f41d3d695a520668f5e1", "status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "versionType": "git"}, {"lessThan": "2ab9a19d896f5a0dd386e1f001c5309bc35f433b", "status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "versionType": "git"}, {"lessThan": "dd594cdc24f2e48dab441732e6dfcafd6b0711d1", "status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "versionType": "git"}, {"lessThan": "2449007d3f73b2842c9734f45f0aadb522daf592", "status": "affected", "version": "c7741d16a57cbf97eebe53f27e8216b1ff20e20c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/bluetooth/hci_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.0"}, {"lessThan": "4.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.309", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.271", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.212", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.151", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.81", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.21", "versionType": "semver"}, {"lessThanOrEqual": "6.7.*", "status": "unaffected", "version": "6.7.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.8", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CF2CC731-FB5F-4BC2-8534-444E3A0DBB80", "versionEndExcluding": "4.19.309", "versionStartIncluding": "4.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7BE17E30-58A5-468C-A06E-28C355F4F8DD", "versionEndExcluding": "5.4.271", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "01B34738-A022-44A9-9250-DCBC76539CB9", "versionEndExcluding": "5.10.212", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EEAFD33E-C22F-4FB1-A417-9C96AB3E0358", "versionEndExcluding": "5.15.151", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EC825B0E-DFCA-4034-9B92-F111A4E2A732", "versionEndExcluding": "6.1.81", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B19074A2-9FE5-4E7D-9E2D-020F95013ADA", "versionEndExcluding": "6.6.21", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1C538467-EDA0-4A9A-82EB-2925DE9FF827", "versionEndExcluding": "6.7.9", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*", "matchCriteriaId": "B9F4EA73-0894-400F-A490-3A397AB7A517", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*", "matchCriteriaId": "056BD938-0A27-4569-B391-30578B309EE3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*", "matchCriteriaId": "F02056A5-B362-4370-9FF8-6F0BD384D520", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*", "matchCriteriaId": "62075ACE-B2A0-4B16-829D-B3DA5AE5CC41", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:*", "matchCriteriaId": "A780F817-2A77-4130-A9B7-5C25606314E3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc6:*:*:*:*:*:*", "matchCriteriaId": "AEB9199B-AB8F-4877-8964-E2BA95B5F15C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Avoid potential use-after-free in hci_error_reset\n\nWhile handling the HCI_EV_HARDWARE_ERROR event, if the underlying\nBT controller is not responding, the GPIO reset mechanism would\nfree the hci_dev and lead to a use-after-free in hci_error_reset.\n\nHere's the call trace observed on a ChromeOS device with Intel AX201:\n queue_work_on+0x3e/0x6c\n __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>]\n ? init_wait_entry+0x31/0x31\n __hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>]\n hci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>]\n process_one_work+0x1d8/0x33f\n worker_thread+0x21b/0x373\n kthread+0x13a/0x152\n ? pr_cont_work+0x54/0x54\n ? kthread_blkcg+0x31/0x31\n ret_from_fork+0x1f/0x30\n\nThis patch holds the reference count on the hci_dev while processing\na HCI_EV_HARDWARE_ERROR event to avoid potential crash."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: Bluetooth: evite el posible use-after-free en hci_error_reset Mientras se maneja el evento HCI_EV_HARDWARE_ERROR, si el controlador BT subyacente no responde, el mecanismo de reinicio de GPIO liberar\u00eda hci_dev y provocar\u00eda un error. use-after-free en hci_error_reset. Este es el seguimiento de llamadas observado en un dispositivo ChromeOS con Intel AX201: queue_work_on+0x3e/0x6c __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth ] ? init_wait_entry+0x31/0x31 __hci_cmd_sync+0x16/0x20 [bluetooth ] hci_error_reset+0x4f/0xa4 [bluetooth ] Process_one_work+0x1d8/0x33f trabajador_thread+0x21b/0x373 kthread+0x13a /0x152 ? pr_cont_work+0x54/0x54? kthread_blkcg+0x31/0x31 ret_from_fork+0x1f/0x30 Este parche mantiene el recuento de referencias en hci_dev mientras procesa un evento HCI_EV_HARDWARE_ERROR para evitar posibles fallas."}], "id": "CVE-2024-26801", "lastModified": "2026-08-04T11:17:06.860", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-26801", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-08-15T19:27:12.303916Z", "version": "2.0.3"}}]}, "published": "2024-04-04T09:15:09.050", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2449007d3f73b2842c9734f45f0aadb522daf592"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2ab9a19d896f5a0dd386e1f001c5309bc35f433b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/45085686b9559bfbe3a4f41d3d695a520668f5e1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/98fb98fd37e42fd4ce13ff657ea64503e24b6090"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da4569d450b193e39e87119fd316c0291b585d14"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dd594cdc24f2e48dab441732e6dfcafd6b0711d1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e0b278650f07acf2e0932149183458468a731c03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2449007d3f73b2842c9734f45f0aadb522daf592"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2ab9a19d896f5a0dd386e1f001c5309bc35f433b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/45085686b9559bfbe3a4f41d3d695a520668f5e1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/98fb98fd37e42fd4ce13ff657ea64503e24b6090"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da4569d450b193e39e87119fd316c0291b585d14"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dd594cdc24f2e48dab441732e6dfcafd6b0711d1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e0b278650f07acf2e0932149183458468a731c03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:4352", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.8.1.rt7.349.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-07-08T00:00:00Z"}, {"advisory": "RHSA-2024:4211", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.8.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-07-02T00:00:00Z"}, {"advisory": "RHSA-2024:4447", "cpe": "cpe:/o:redhat:rhel_aus:8.6", "package": "kernel-0:4.18.0-372.111.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2024-07-10T00:00:00Z"}, {"advisory": "RHSA-2024:4447", "cpe": "cpe:/o:redhat:rhel_tus:8.6", "package": "kernel-0:4.18.0-372.111.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2024-07-10T00:00:00Z"}, {"advisory": "RHSA-2024:4447", "cpe": "cpe:/o:redhat:rhel_e4s:8.6", "package": "kernel-0:4.18.0-372.111.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2024-07-10T00:00:00Z"}, {"advisory": "RHSA-2024:4740", "cpe": "cpe:/o:redhat:rhel_eus:8.8", "package": "kernel-0:4.18.0-477.64.1.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-07-23T00:00:00Z"}, {"advisory": "RHSA-2024:4349", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.24.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-07-08T00:00:00Z"}, {"advisory": "RHSA-2024:4349", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.24.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-07-08T00:00:00Z"}, {"advisory": "RHSA-2024:4533", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "kernel-0:5.14.0-284.73.1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-07-15T00:00:00Z"}, {"advisory": "RHSA-2024:4554", "cpe": "cpe:/a:redhat:rhel_eus:9.2::nfv", "package": "kernel-rt-0:5.14.0-284.73.1.rt14.358.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-07-15T00:00:00Z"}], "bugzilla": {"description": "kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset", "id": "2273429", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2273429"}, "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": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: Avoid potential use-after-free in hci_error_reset\nWhile handling the HCI_EV_HARDWARE_ERROR event, if the underlying\nBT controller is not responding, the GPIO reset mechanism would\nfree the hci_dev and lead to a use-after-free in hci_error_reset.\nHere's the call trace observed on a ChromeOS device with Intel AX201:\nqueue_work_on+0x3e/0x6c\n__hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>]\n? init_wait_entry+0x31/0x31\n__hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>]\nhci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>]\nprocess_one_work+0x1d8/0x33f\nworker_thread+0x21b/0x373\nkthread+0x13a/0x152\n? pr_cont_work+0x54/0x54\n? kthread_blkcg+0x31/0x31\nret_from_fork+0x1f/0x30\nThis patch holds the reference count on the hci_dev while processing\na HCI_EV_HARDWARE_ERROR event to avoid potential crash.", "A use-after-free flaw was found in the Linux kernel\u2019s Bluetooth subsystem in how it handles hardware failure when it occurs. This flaw allows a local user to potentially crash the system."], "name": "CVE-2024-26801", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-04-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26801\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26801\nhttps://lore.kernel.org/linux-cve-announce/2024040403-CVE-2024-26801-da9f@gregkh/T"], "threat_severity": "Moderate"}

{}