CVE-2024-35851: Bluetooth: qca: fix NULL-deref on non-serdev suspend
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: qca: fix NULL-deref on non-serdev suspend
Qualcomm ROME controllers can be registered from the Bluetooth line discipline and in this case the HCI UART serdev pointer is NULL.
Add the missing sanity check to prevent a NULL-pointer dereference when wakeup() is called for a non-serdev controller during suspend.
Just return true for now to restore the original behaviour and address the crash with pre-6.2 kernels, which do not have commit e9b3e5b8c657 ("Bluetooth: hciqca: only assign wakeup with serial port support") that causes the crash to happen already at setup() time.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-35851?
The severity of CVE-2024-35851 is classified as low, as it involves a NULL dereference issue on non-serdev suspend for Qualcomm ROME controllers.
How do I fix CVE-2024-35851?
To fix CVE-2024-35851, ensure you update your Linux kernel to a version that includes the relevant security patch.
Which Linux kernel versions are affected by CVE-2024-35851?
CVE-2024-35851 affects various versions of the Linux kernel, including those prior to 5.10.223 and certain releases in the 6.x series.
Is my system vulnerable to CVE-2024-35851?
Your system may be vulnerable to CVE-2024-35851 if you are running an affected version of the Linux kernel without the latest patches.
What components are impacted by CVE-2024-35851?
CVE-2024-35851 specifically impacts Bluetooth functionality in the Linux kernel related to Qualcomm ROME controllers.