Answer in brief
CVE-2026-74410 records a High severity (CVSS 8.1) vulnerability in wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer. 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 | >=e3037485c68ec1a299ff41160d8fedbd4abc29b9 <913bd7d3d3d842b5c1d2b908a0201efa8fc79793 || >=e3037485c68ec1a299ff41160d8fedbd4abc29b9 <45abc14ab3f15da7d689f1a8809c1a01240a94d9 || >=e3037485c68ec1a299ff41160d8fedbd4abc29b9 <08193e733e5d4790e6c937af86d78793b02709be || >=e3037485c68ec1a299ff41160d8fedbd4abc29b9 <6a3c384393d3f0b41669ed5a2e88744aad9d87c8 || >=e3037485c68ec1a299ff41160d8fedbd4abc29b9 <26c183a86ea4dd1f2ff90c6f783649e7f5722a10 || >=e3037485c68ec1a299ff41160d8fedbd4abc29b9 <01155ded5d4dad61840a9a3c33ab56778ef1f100 || >=e3037485c68ec1a299ff41160d8fedbd4abc29b9 <1554fa522f16ec7c5c342ad33fe734eeb6eb2452 || >=e3037485c68ec1a299ff41160d8fedbd4abc29b9 <6e76e9ed273dfb4b3333a5ebbb94958cc5752ab6 | 913bd7d3d3d842b5c1d2b908a0201efa8fc79793, 45abc14ab3f15da7d689f1a8809c1a01240a94d9, 08193e733e5d4790e6c937af86d78793b02709be, 6a3c384393d3f0b41669ed5a2e88744aad9d87c8, 26c183a86ea4dd1f2ff90c6f783649e7f5722a10, 01155ded5d4dad61840a9a3c33ab56778ef1f100, 1554fa522f16ec7c5c342ad33fe734eeb6eb2452, 6e76e9ed273dfb4b3333a5ebbb94958cc5752ab6 |
| Linux/Linuxgeneric | 5.2 | Not reported |
Published upstream
Aug 15, 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 15, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer In rtw_pci_rx_napi(), new_len is computed as the sum of pkt_len (14-bit descriptor field, max 16383) and pkt_offset (drv_info_sz + shift, both firmware-controlled). The result can exceed RTK_PCI_RX_BUF_SIZE (11478), causing an out-of-bounds read from the pre-allocated DMA buffer when skb_put_data copies new_len bytes. The USB transport already validates this (rtw_usb_rx_data_put checks against RTW_USB_MAX_RECVBUF_SZ); the PCIe path does not. Add a check that new_len does not exceed the DMA buffer size.
Quoted source text, attributed separately from HOL analysis.