CVE-2026-74304

high

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device hu->serdev is NULL for hci_uart attached via non-serdev paths, but qca_setup() unconditionally calls serdev_device_get_drvdata(hu->serdev) and dereferences the result, causing a NULL pointer dereference. Fix by guarding the dereference with a NULL check, consistent with the rest of qca_setup().

References

https://git.kernel.org/stable/c/74f179e75ab03bdc818a5e9709d8a8440c351463

https://git.kernel.org/stable/c/3ec629fee178d429f01ae843e4ea888de93012bf

https://git.kernel.org/stable/c/0704c04769ccc1a0939682db35d816dfa5fe75dc

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-59451

Details

Source: Mitre, NVD

Published: 2026-08-15

Updated: 2026-09-25

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.4

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00206