CVE-2023-53648: ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer
In the Linux kernel, the following vulnerability has been resolved:
ALSA: ac97: Fix possible NULL dereference in sndac97mixer
smatch error: sound/pci/ac97/ac97codec.c:2354 sndac97mixer() error: we previously assumed 'rac97' could be null (see line 2072)
remove redundant assignment, return error if rac97 is NULL.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2023-53648?
CVE-2023-53648 is classified as a medium severity vulnerability affecting the Linux kernel.
How do I fix CVE-2023-53648?
To mitigate CVE-2023-53648, users should update their Linux kernel to the latest patched version provided by their distribution.
What systems are impacted by CVE-2023-53648?
CVE-2023-53648 affects systems running the vulnerable versions of the Linux kernel that utilize the ALSA AC97 audio subsystem.
What types of attacks can exploit CVE-2023-53648?
CVE-2023-53648 could potentially be exploited to cause a denial of service by triggering a NULL pointer dereference.
When was CVE-2023-53648 disclosed?
CVE-2023-53648 was disclosed in late October 2023 when the vulnerability was acknowledged and fixed in the Linux kernel.