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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2015-12-11 09:16:38 -0800
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2015-12-11 11:05:57 -0800
commit5e1033561da1152c57b97ee84371dba2b3d64c25 (patch)
treeabae723dc0851525794fcfa5d75691fbdb33ff09 /include
parent3417c1b5cb1fdc10261dbed42b05cc93166a78fd (diff)
downloadleg-kernel-5e1033561da1152c57b97ee84371dba2b3d64c25.tar.gz
ses: fix additional element traversal bug
KASAN found that our additional element processing scripts drop off the end of the VPD page into unallocated space. The reason is that not every element has additional information but our traversal routines think they do, leading to them expecting far more additional information than is present. Fix this by adding a gate to the traversal routine so that it only processes elements that are expected to have additional information (list is in SES-2 section 6.1.13.1: Additional Element Status diagnostic page overview) Reported-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com> Tested-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com> Cc: stable@vger.kernel.org Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/enclosure.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/enclosure.h b/include/linux/enclosure.h
index 7be22da321f3..a4cf57cd0f75 100644
--- a/include/linux/enclosure.h
+++ b/include/linux/enclosure.h
@@ -29,7 +29,11 @@
/* A few generic types ... taken from ses-2 */
enum enclosure_component_type {
ENCLOSURE_COMPONENT_DEVICE = 0x01,
+ ENCLOSURE_COMPONENT_CONTROLLER_ELECTRONICS = 0x07,
+ ENCLOSURE_COMPONENT_SCSI_TARGET_PORT = 0x14,
+ ENCLOSURE_COMPONENT_SCSI_INITIATOR_PORT = 0x15,
ENCLOSURE_COMPONENT_ARRAY_DEVICE = 0x17,
+ ENCLOSURE_COMPONENT_SAS_EXPANDER = 0x18,
};
/* ses-2 common element status */