CVE-2024-49931 wifi: ath12k: fix array out-of-bound access in SoC stats
A local attacker can trigger an out-of-bounds array access in the ath12k WiFi driver, potentially causing a system crash or arbitrary code execution.
- 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-2024-49931?
CVE-2024-49931 is a high-severity memory corruption vulnerability in Linux kernel, published on 21 Oct 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: ath12k: fix array out-of-bound access in SoC stats
Currently, the ath12k_soc_dp_stats::hal_reo_error array is defined with a maximum size of DP_REO_DST_RING_MAX. However, the ath12k_dp_rx_process() function access ath12k_soc_dp_stats::hal_reo_error using the REO destination SRNG ring ID, which is incorrect. SRNG ring ID differ from normal ring ID, and this usage leads to out-of-bounds array access. To fix this issue, modify ath12k_dp_rx_process() to use the normal ring ID directly instead of the SRNG ring ID to avoid out-of-bounds array access.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Weakness: CWE-129
Which versions are affected by CVE-2024-49931?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-49931?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-49931 being exploited?
There is no known exploitation of CVE-2024-49931 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-49931, DEBIAN-CVE-2024-49931, GHSA-26q7-wp6g-349w, ROOT-OS-UBUNTU-2204-CVE-2024-49931, UBUNTU-CVE-2024-49931.