{"metadata": {"vulnerability": "CVE-2026-79978", "count": 9, "kinds": {"milestone": 4, "sighting": 1, "kev": 0, "other": 4}}, "data": [{"timestamp": "2026-08-25T16:06:30.868Z", "date_only": false, "value": "2026-08-25T16:06:30.868Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-79978", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T19:56:14.995Z", "date_only": false, "value": "2026-10-23T19:56:14.995Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-79978", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-23T19:56:14.995Z", "date_only": false, "value": "2026-10-23T19:56:14.995Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-79978", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-23T19:56:14.995Z", "date_only": false, "value": "2026-10-23T19:56:14.995Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / zephyr", "record": "CVE-2026-79978", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-23T20:05:17.519Z", "date_only": false, "value": "2026-10-23T20:05:17.519223Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117492017854254590", "record": "CVE-2026-79978", "field": "creation_timestamp", "uuid": "d3b1a6a1-c527-49b5-9453-dcdf0c8b443a", "content": "CVE-2026-79978 Out-of-bounds write in the ADXL345 sensor driver RTIO streaming FIFO read path The RTIO streaming completion callback adxl345_process_fifo_samples_cb() in drivers/sensor/adi/adxl345/adxl345_stream.c clamps the amount of FIFO data it will report (read_len = MIN(fifo_bytes, buf_avail)) to the space actually returned by rtio_sqe_rx_buf(), but then queues one 6-byte bus read per hardware FIFO entry at consecutive offsets from read_buf, bounded by the device-reported entry count rather than by the clamp. When the allocated buffer is smaller than a full batch, the driver writes up to 186 bytes past the end of the allocation; a companion defect left data->fifo_total_bytes un-reset at batch start, so an aborted or errored chain could leave a stale write offset that pushes the next batch's writes out of bounds as well.\nA short buffer is an expected, first-class outcome of the RTIO allocator: rtio_block_pool_alloc() walks the requested size down one block at a time until a contiguous run is available, and the driver only demands sizeof(struct adxl345_fifo_data) + 6 bytes as its minimum. Any streaming configuration whose mempool block granularity is smaller than a full FIFO batch (204 bytes) \u2014 for example the sensor shell's RTIO_DEFINE_WITH_MEMPOOL(sensor_read_rtio, 8, 8, 32, 64, 4) used by sensor stream <dev> on fifo_wm incl, or the 16-byte-block streaming example in the documentation \u2014 takes this path whenever the pool is fragmented or the consuming thread falls behind.\nThe out-of-bounds writes are performed by the I2C/SPI RTIO backend (DMA on many SoCs) into the shared RTIO block pool, corrupting neighbouring live buffers or, for a pool smaller than one batch, memory beyond the pool itself. The written bytes are accelerometer samples and the destination follows the allocation, so there is no controllable corruption primitive: the realistic impact is silent corruption of other RTIO consumers' data or a crash. Reaching it requires a board with an interrupt-wired ADXL345 built with CONFIG_ADXL345_STREAM, plus buffer-pool starvation, which a co-resident local workload can induce but which also occurs spontaneously under load; there is no network, USB or radio path to this code.\nhttps://www.cve.org/CVERecord?id=CVE-2026-79978https://github.com/zephyrproject-rtos/zephyr/commit/3451bb1e1e9165844060551164adb8a756e7b6b7https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-4v56-r4qm-v964#zephyrproject #zephyr#CVE_2026_79978#bot", "url": "https://infosec.exchange/users/cve/statuses/117492017854254590"}, {"timestamp": "2026-10-23T20:17:00Z", "date_only": false, "value": "2026-10-23T20:17:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-79978", "record": "UBUNTU-CVE-2026-79978", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-23T20:17:27.657Z", "date_only": false, "value": "2026-10-23T20:17:27.657", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-79978", "record": "FKIE_CVE-2026-79978", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-26T13:52:21.763Z", "date_only": false, "value": "2026-10-26T13:52:21.763", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-79978", "record": "FKIE_CVE-2026-79978", "field": "lastModified"}, {"timestamp": "2026-10-28T17:42:52Z", "date_only": false, "value": "2026-10-28T17:42:52Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-79978", "record": "UBUNTU-CVE-2026-79978", "field": "modified"}], "metrics": {"as_of": "2026-10-29T00:48:08.639Z", "anchors": {"origin": {"timestamp": "2026-10-23T19:56:14.995Z", "date_only": false, "value": "2026-10-23T19:56:14.995Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-79978", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-10-23T19:56:14.995Z", "date_only": false, "value": "2026-10-23T19:56:14.995Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-79978", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "exploit_publication": null, "exploitation": null, "patch": null}, "vendor_response_time": {"available": false, "missing": ["start", "end"]}, "time_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit_publication": {"available": false, "missing": ["end"]}, "time_to_patch": {"available": false, "missing": ["start", "end"]}, "total_time_to_patch": {"available": false, "missing": ["start", "end"]}, "disclosure_to_patch": {"available": false, "missing": ["end"]}, "time_unpatched": {"available": true, "seconds": 449513.644074, "hours": 124.86490113166667, "days": 5.202704213819445, "min_seconds": 449513.644074, "max_seconds": 449513.644074, "approximate": false, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-10-23T19:56:14.995Z", "date_only": false, "value": "2026-10-23T19:56:14.995Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-79978", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-10-29T00:48:08.639Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}