CVE-2023-54108 scsi: qla2xxx: Fix DMA-API call trace on NVMe LS requests
A missing DMA error check in the qla2xxx driver can cause kernel warnings and potential instability, requiring a patch for system administrators.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-54108?
CVE-2023-54108 is a denial of service vulnerability in Linux, published on 24 Dec 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:
scsi: qla2xxx: Fix DMA-API call trace on NVMe LS requests
The following message and call trace was seen with debug kernels:
DMA-API: qla2xxx 0000:41:00.0: device driver failed to check map error [device address=0x00000002a3ff38d8] [size=1024 bytes] [mapped as single] WARNING: CPU: 0 PID: 2930 at kernel/dma/debug.c:1017 check_unmap+0xf42/0x1990
Call Trace: debug_dma_unmap_page+0xc9/0x100 qla_nvme_ls_unmap+0x141/0x210 [qla2xxx]
Remove DMA mapping from the driver altogether, as it is already done by FC layer. This prevents the warning.
Which versions are affected by CVE-2023-54108?
How do I fix CVE-2023-54108?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-54108 being exploited?
There is no known exploitation of CVE-2023-54108 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-54108, DEBIAN-CVE-2023-54108, GHSA-w45h-m4r8-m765, UBUNTU-CVE-2023-54108.