CVE-2024-50174 drm/panthor: Fix race when converting group handle to group object
A race condition in the Linux kernel Panthor driver allows attackers to trigger use-after-free errors, potentially leading to privilege escalation or system crashes.
- 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-2024-50174?
CVE-2024-50174 is a high-severity vulnerability in Linux kernel, published on 8 Nov 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:
drm/panthor: Fix race when converting group handle to group object
XArray provides it's own internal lock which protects the internal array when entries are being simultaneously added and removed. However there is still a race between retrieving the pointer from the XArray and incrementing the reference count.
To avoid this race simply hold the internal XArray lock when incrementing the reference count, this ensures there cannot be a racing call to xa_erase().
Weakness: CWE-362
Which versions are affected by CVE-2024-50174?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-50174?
Apply the vendor's patch.
Is CVE-2024-50174 being exploited?
There is no known exploitation of CVE-2024-50174 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-50174, DEBIAN-CVE-2024-50174, GHSA-j7v5-x62w-r9x3, UBUNTU-CVE-2024-50174.