Bluetooth: hci_qca: fix NULL pointer dereference in qca_dmp_hdr() for non-serdev device
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · LinuxReferences
https://git.kernel.org/stable/c/6b8cbcf08de0db62254d1981f83db0f94681ccd9https://git.kernel.org/stable/c/809230cc25dde1d6bb00de2a1eeb5f3199402fbehttps://git.kernel.org/stable/c/a209744230f9ce3d7a7e9a0839944f5cb5fa02a4https://git.kernel.org/stable/c/d54a5fb7d821b88c7c5569d450af59dafccaf414https://git.kernel.org/stable/c/e284bb94ad4512ec0bcd9b91bda99e67c507f7f8