CVE-2024-58068 OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized
A null pointer dereference in the Linux kernel OPP subsystem causes a crash when bandwidth tables are uninitialized, 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-2024-58068?
CVE-2024-58068 is a medium-severity vulnerability in Linux kernel, published on 6 Mar 2025. 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:
OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized
If a driver calls dev_pm_opp_find_bw_ceil/floor() the retrieve bandwidth from the OPP table but the bandwidth table was not created because the interconnect properties were missing in the OPP consumer node, the kernel will crash with:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 ... pc : _read_bw+0x8/0x10 lr : _opp_table_find_key+0x9c/0x174 ... Call trace: _read_bw+0x8/0x10 (P) _opp_table_find_key+0x9c/0x174 (L) _find_key+0x98/0x168 dev_pm_opp_find_bw_ceil+0x50/0x88 ...
In order to fix the crash, create an assert function to check if the bandwidth table was created before trying to get a bandwidth with _read_bw().
Weakness: CWE-476
Which versions are affected by CVE-2024-58068?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-58068?
Apply the vendor's patch.
Is CVE-2024-58068 being exploited?
There is no known exploitation of CVE-2024-58068 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-58068, DEBIAN-CVE-2024-58068, GHSA-fvgf-g9j6-cf8m, ROOT-OS-UBUNTU-2404-CVE-2024-58068, UBUNTU-CVE-2024-58068.