Fix free null ptr in uefi_file.c by chnzzh · Pull Request #5 · pbatard/ntfs-3g (original) (raw)

I am using the Linux platform to generate OVMF image with this ntfs-3g driver.

I have successfully built the OVMF.fd image, but when I try to enter the EFI Shell, it gets stuck at the loading screen, only display a white cursor.

I have printed the debug information to the stdio, and it appears as follows:

ASSERT_EFI_ERROR (Status = Invalid Parameter)
ASSERT [ntfs] /home/zzh/uefi_pj/edk3/edk2/MdePkg/Library/UefiMemoryAllocationLib/MemoryAllocationLib.c(821): !(((INTN)(RETURN_STATUS)(Status)) < 0)

After debugging, I found that the issue may be caused by freeing a null pointer in uefi_file.c at line 195.

Therefore, I added a condition to check for this, and now it has been fixed. The EFI Shell can be accessed normally.