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authortang.junhui <tang.junhui@zte.com.cn>2016-11-04 12:37:09 +0800
committerMike Snitzer <snitzer@redhat.com>2016-11-21 09:52:08 -0500
commitcc5bd925f194c8dc7e2a4eee2c81a4f148018b08 (patch)
tree4d8f3d715414945d7b462dd1e1824ddfa53989e8 /drivers/md/dm-log-userspace-transfer.h
parentf97dc421280e16b8eb0c8f685610ba007ec11b79 (diff)
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dm mpath: add checks for priority group count to avoid invalid memory access
This avoids the potential for invalid memory access, if/when there are no priority groups, in response to invalid arguments being sent by the user via DM message (e.g. "switch_group", "disable_group" or "enable_group"). Signed-off-by: tang.junhui <tang.junhui@zte.com.cn> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-log-userspace-transfer.h')
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