CVE-2024-46860 wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change
A NULL pointer dereference in the mt7921 WiFi driver can cause a kernel crash when disabling WiFi, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-46860?
CVE-2024-46860 is a medium-severity vulnerability in Linux kernel, published on 27 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change
When disabling wifi mt7921_ipv6_addr_change() is called as a notifier. At this point mvif->phy is already NULL so we cannot use it here.
Weakness: CWE-476
Which versions are affected by CVE-2024-46860?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-46860?
Apply the vendor's patch.
Is CVE-2024-46860 being exploited?
There is no known exploitation of CVE-2024-46860 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-49821, AZL-49835, BELL-CVE-2024-46860, DEBIAN-CVE-2024-46860, GHSA-69jx-mj79-459w, ROOT-OS-DEBIAN-11-CVE-2024-46860 and 3 more.