Answer in brief
CVE-2026-74410 records a Unknown severity 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.
Answer in brief
CVE-2026-74410 records a Unknown severity 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.
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). 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 15, 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.
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). 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 15, 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.