Re: [PATCH RESEND] scsi: hpsa: Fix potential memory leak in hpsa_big_passthru_ioctl()

Thorsten,

Replace kmalloc() followed by copy_from_user() with memdup_user() to fix a memory leak that occurs when copy_from_user(buff[sg_used],,) fails and the 'cleanup1:' path does not free the memory for 'buff[sg_used]'. Using memdup_user() avoids this by freeing the memory internally.

Since memdup_user() already allocates memory, use kzalloc() in the else branch instead of manually zeroing 'buff[sg_used]' using memset(0).

Applied to 6.18/scsi-staging, thanks!