CVE-2026-74303

Summary

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_qca: fix NULL pointer dereference in qca_dmp_hdr() for non-serdev device

hu->serdev is NULL for hci_uart attached via non-serdev paths, but qca_dmp_hdr() unconditionally dereferences hu->serdev->dev.driver->name, causing a NULL pointer dereference.

Fix by guarding the dereference with a NULL check and falling back to "hci_ldisc_qca" for the non-serdev case.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux06d3fdfcdf5cefb06f2024b9d3dad356779399cf < 809230cc25dde1d6bb00de2a1eeb5f3199402fbeaffected
LinuxLinux06d3fdfcdf5cefb06f2024b9d3dad356779399cf < a209744230f9ce3d7a7e9a0839944f5cb5fa02a4affected
LinuxLinux06d3fdfcdf5cefb06f2024b9d3dad356779399cf < e284bb94ad4512ec0bcd9b91bda99e67c507f7f8affected
LinuxLinux06d3fdfcdf5cefb06f2024b9d3dad356779399cf < d54a5fb7d821b88c7c5569d450af59dafccaf414affected
LinuxLinux06d3fdfcdf5cefb06f2024b9d3dad356779399cf < 6b8cbcf08de0db62254d1981f83db0f94681ccd9affected
LinuxLinux6.6affected
LinuxLinux0 < 6.6unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References