CVE-2026-74303
Unknown
Description
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedAug 15, 2026
First seenAug 15, 2026
How to fix
Update
- Linux Linux809230cc25dde1d6bb00de2a1eeb5f3199402fbe, a209744230f9ce3d7a7e9a0839944f5cb5fa02a4, e284bb94ad4512ec0bcd9b91bda99e67c507f7f8, d54a5fb7d821b88c7c5569d450af59dafccaf414, 6b8cbcf08de0db62254d1981f83db0f94681ccd9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 06d3fdfcdf5cefb06f2024b9d3dad356779399cf ≤ v < 809230cc25dde1d6bb00de2a1eeb5f3199402fbe, 06d3fdfcdf5cefb06f2024b9d3dad356779399cf ≤ v < a209744230f9ce3d7a7e9a0839944f5cb5fa02a4, 06d3fdfcdf5cefb06f2024b9d3dad356779399cf ≤ v < e284bb94ad4512ec0bcd9b91bda99e67c507f7f8, 06d3fdfcdf5cefb06f2024b9d3dad356779399cf ≤ v < d54a5fb7d821b88c7c5569d450af59dafccaf414, 06d3fdfcdf5cefb06f2024b9d3dad356779399cf ≤ v < 6b8cbcf08de0db62254d1981f83db0f94681ccd9, 6.6 | 809230cc25dde1d6bb00de2a1eeb5f3199402fbe, a209744230f9ce3d7a7e9a0839944f5cb5fa02a4, e284bb94ad4512ec0bcd9b91bda99e67c507f7f8, d54a5fb7d821b88c7c5569d450af59dafccaf414, 6b8cbcf08de0db62254d1981f83db0f94681ccd9 |
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