scsi: sg: allocate with __GFP_ZERO in sg_build_indirect()

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commit a45b599ad8 upstream.

This shall help avoid copying uninitialized memory to the userspace when
calling ioctl(fd, SG_IO) with an empty command.

Reported-by: syzbot+7d26fc1eea198488deab@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Alexander Potapenko 2018-05-18 16:23:18 +02:00 • committed by Greg Kroah-Hartman

parent 5844287454

commit d827bea2d1

1 changed files with 1 additions and 1 deletions

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drivers/scsi/sg.c

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