[SCSI] don't reference freed command in scsi_init_sgtable

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commit 0479633686
Author: Christoph Hellwig <hch@infradead.org>
Date:   Thu Feb 20 14:20:55 2014 -0800

    [SCSI] do not manipulate device reference counts in scsi_get/put_command

Introduced a use after free: when scsi_init_io fails we have to release our
device reference, but we do this trying to reference the just freed command.
Add a local scsi_device pointer to fix this.

Fixes: 0479633686
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

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Christoph Hellwig 2014-04-15 12:24:55 +02:00 • committed by James Bottomley

parent 67c99a72e3

commit 5e012aad85

1 changed files with 2 additions and 1 deletions

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drivers/scsi/scsi_lib.c

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