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authorStefan Richter <stefanr@s5r6.in-berlin.de>2007-07-01 13:56:03 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2007-07-10 00:07:47 +0200
commit332ef3310bc37ff29fd4382d6dfb38a787078091 (patch)
tree63313482ee19fffea5900bacf52c1c660528f72a /drivers/serial/sunsab.c
parentfirewire: fw-sbp2: correctly align page tables (diff)
downloadlinux-332ef3310bc37ff29fd4382d6dfb38a787078091.tar.xz
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firewire: fw-sbp2: add a boundary check
Add rudimentary check for the case that the page table overflows due to merging of s/g elements by the IOMMU. This would have lead to overwriting of arbitrary memory. After this change I expect that an offending command will be unsuccessfully retried until the scsi_device is taken offline by SCSI core. It's a border case and not worth to implement a recovery strategy. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Kristian Høgsberg <krh@redhat.com>
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