CVE-2026-74410 (GCVE-0-2026-74410)
Vulnerability from cvelistv5
Published
2026-08-15 05:59
Modified
2026-10-16 19:05
Severity ?
8.1 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: e3037485c68ec1a299ff41160d8fedbd4abc29b9
Version: e3037485c68ec1a299ff41160d8fedbd4abc29b9
Version: e3037485c68ec1a299ff41160d8fedbd4abc29b9
Version: e3037485c68ec1a299ff41160d8fedbd4abc29b9
Version: e3037485c68ec1a299ff41160d8fedbd4abc29b9
Version: e3037485c68ec1a299ff41160d8fedbd4abc29b9
Version: e3037485c68ec1a299ff41160d8fedbd4abc29b9
Version: e3037485c68ec1a299ff41160d8fedbd4abc29b9
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Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.