Answer in brief
CVE-2026-64547 records a High severity (CVSS 8.1) vulnerability in net: usb: net1080: validate packet_len before pad-byte access in rx_fixup. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=904813cd8a0b334189da285bb05af0b18b062502 <f42217fa7d535e9ec4151f7971f06f6ea65e850a || >=904813cd8a0b334189da285bb05af0b18b062502 <c087749815379e9af2fdbeb08bfc33870b103958 || >=904813cd8a0b334189da285bb05af0b18b062502 <e4a87126c085b097d29e17e3b7647295bba8be7c || >=904813cd8a0b334189da285bb05af0b18b062502 <685e92934f11d5e215dad58813e2f9955ac2f436 || >=904813cd8a0b334189da285bb05af0b18b062502 <4dc8484be3302d187274364820d3bef6c62bde32 || >=904813cd8a0b334189da285bb05af0b18b062502 <b153cfe84b1340c69a13d0957665a2bfcf21239c || >=904813cd8a0b334189da285bb05af0b18b062502 <ea866cab12db1a2100b400a8b03569e5bc0ee29a || >=904813cd8a0b334189da285bb05af0b18b062502 <03f384bc0cb8d4a1301d4f5b0baef2d980258383 | f42217fa7d535e9ec4151f7971f06f6ea65e850a, c087749815379e9af2fdbeb08bfc33870b103958, e4a87126c085b097d29e17e3b7647295bba8be7c, 685e92934f11d5e215dad58813e2f9955ac2f436, 4dc8484be3302d187274364820d3bef6c62bde32, b153cfe84b1340c69a13d0957665a2bfcf21239c, ea866cab12db1a2100b400a8b03569e5bc0ee29a, 03f384bc0cb8d4a1301d4f5b0baef2d980258383 |
| Linux/Linuxgeneric | 2.6.14 | Not reported |
Published upstream
Jul 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: net: usb: net1080: validate packet_len before pad-byte access in rx_fixup For an even packet_len, net1080_rx_fixup() reads the pad byte at skb->data[packet_len] before the skb->len != packet_len check further down, and packet_len is only bounded against NC_MAX_PACKET. A malicious NetChip 1080 device can send a short frame advertising a large even packet_len (e.g. 0x4000), so the pad-byte read lands past the end of the skb: BUG: KASAN: slab-out-of-bounds in net1080_rx_fixup Read of size 1 at addr ffff8880106c83c6 by task ksoftirqd/0/14 ... net1080_rx_fixup (drivers/net/usb/net1080.c:384) usbnet_bh (drivers/net/usb/usbnet.c:1589) process_one_work (kernel/workqueue.c:3322) bh_worker (kernel/workqueue.c:3708) tasklet_action (kernel/softirq.c:965) handle_softirqs (kernel/softirq.c:622) ... Reject the frame when packet_len >= skb->len before reading.
Quoted source text, attributed separately from HOL analysis.