Answer in brief
CVE-2026-98769 records a Unknown severity vulnerability in usb: gadget: f_uac1_legacy: validate bRequest index in generic_{set,get}_cmd. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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.
A CVSS score is not reported in the current record. 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c47d7b09891abb4f8b222317c89c7469bed8db3a <36f3f009049bc91e14dc856007932473318d12f8 || >=c47d7b09891abb4f8b222317c89c7469bed8db3a <8c611876c002d712ae5f246af5188432c708f79d || >=c47d7b09891abb4f8b222317c89c7469bed8db3a <697cfe6e53b66cda196d6f8833b0ee97fefd0a8a || >=c47d7b09891abb4f8b222317c89c7469bed8db3a <9062d50e75c24dc7911be05c9b1719b3b256af15 | 36f3f009049bc91e14dc856007932473318d12f8, 8c611876c002d712ae5f246af5188432c708f79d, 697cfe6e53b66cda196d6f8833b0ee97fefd0a8a, 9062d50e75c24dc7911be05c9b1719b3b256af15 |
| Linux/Linuxgeneric | 2.6.31 | Not reported |
| Linux/Linuxgeneric | >=c47d7b09891abb4f8b222317c89c7469bed8db3a <da841c1511a6160b8bc6bb7b7c6d4c9fb76fb51e || >=c47d7b09891abb4f8b222317c89c7469bed8db3a <36f3f009049bc91e14dc856007932473318d12f8 || >=c47d7b09891abb4f8b222317c89c7469bed8db3a <8c611876c002d712ae5f246af5188432c708f79d || >=c47d7b09891abb4f8b222317c89c7469bed8db3a <697cfe6e53b66cda196d6f8833b0ee97fefd0a8a || >=c47d7b09891abb4f8b222317c89c7469bed8db3a <9062d50e75c24dc7911be05c9b1719b3b256af15 | da841c1511a6160b8bc6bb7b7c6d4c9fb76fb51e, 36f3f009049bc91e14dc856007932473318d12f8, 8c611876c002d712ae5f246af5188432c708f79d, 697cfe6e53b66cda196d6f8833b0ee97fefd0a8a, 9062d50e75c24dc7911be05c9b1719b3b256af15 |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_uac1_legacy: validate bRequest index in generic_{set,get}_cmd generic_set_cmd() and generic_get_cmd() use the low nibble of ctrl->bRequest as an index into con->data[]: u8 cmd = (ctrl->bRequest & 0x0F); /* 0 .. 15 */ ... con->data[cmd] = value; /* OOB when cmd >= 5 */ struct usb_audio_control (include/linux/usb/audio.h) declares data as a 5-element array, so indices 5 through 15 write (or read) up to 44 bytes past the end of the array on the heap. A malicious USB host can craft a class-specific SET_CUR / GET_CUR request with an arbitrary bRequest value, triggering the out-of-bounds access from an IRQ completion handler with no further preconditions. Add an ARRAY_SIZE() guard to both functions.
Quoted source text, attributed separately from HOL analysis.