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commit7db0e0c819upstream. According to ZBC and SPC specifications, the unit of ALLOCATION LENGTH field of REPORT ZONES command is byte. However, current scsi_debug implementation handles it as number of zones to calculate buffer size to report zones. When the ALLOCATION LENGTH has a large number, this results in too large buffer size and causes memory allocation failure. Fix the failure by handling ALLOCATION LENGTH as byte unit. Link: https://lore.kernel.org/r/20211207010638.124280-1-shinichiro.kawasaki@wdc.com Fixes:f0d1cf9378("scsi: scsi_debug: Add ZBC zone commands") Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.