How do you turn on poll_mode_io? Thanks, Bo Yang ________________________________________ From: Eugene Teo [eteo@xxxxxxxxxx] Sent: Wednesday, December 02, 2009 7:08 PM To: Casey Dahlin Cc: linux-kernel@xxxxxxxxxxxxxxx; Bryn M. Reeves; DL-MegaRAID Linux; James E.J. Bottomley; Andrew Morton; Yang Hongyang; Anand Gadiyar; Jiri Kosina; linux-scsi@xxxxxxxxxxxxxxx Subject: Re: [PATCH] [SCSI] megaraid_sas: remove sysfs dbg_lvl world writeable permissions On 12/02/2009 11:17 PM, Casey Dahlin wrote: > From: Bryn M. Reeves<bmr@xxxxxxxxxx> > > /sys/bus/pci/drivers/megaraid_sas/poll_mode_io defaults to being > world-writable, which seems bad (letting any user affect kernel driver > behavior). > > This turns off group and user write permissions, so that on typical > production systems only root can write to it. > > Signed-off-by: Bryn M. Reeves<bmr@xxxxxxxxxx> > Signed-off-by: Casey Dahlin<cdahlin@xxxxxxxxxx> CC: Eugene Teo <eteo@xxxxxxxxxx> The subject should read: megaraid_sas: remove poll_mode_io world writeable permissions instead, and this has been assigned with CVE-2009-3939. Thanks, Eugene -- Eugene Teo / Red Hat Security Response Team-- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
