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.

References 6

• git.kernel.org https://git.kernel.org/stable/c/3a564de3a299856f2cbd289649cea2e20d671a43
• git.kernel.org https://git.kernel.org/stable/c/3ee4f1991c54c6707aa9df47e51c02ea25bb63e3
• git.kernel.org https://git.kernel.org/stable/c/77302fb0e357da666d5249a6e91078feeef3dade
• git.kernel.org https://git.kernel.org/stable/c/ad6af23593594402c826eefdf43ae174e5f0f202
• git.kernel.org https://git.kernel.org/stable/c/c75e6aef5039830cce5d4cf764dd204522f89e6b
• git.kernel.org https://git.kernel.org/stable/c/e596253113b69b4018818260bd5da40c201bee73

Remediation