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authorHarald Freudenberger <freude@linux.vnet.ibm.com>2014-12-10 10:23:59 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2014-12-18 09:55:55 +0100
commit099eae11a8beb13e17f6b9371c7c090c61bc061d (patch)
treec04f74a8b1f3b35c489bbcdccdb56bbfb4f98b24 /README
parentCeph: remove left-over reject file (diff)
downloadlinux-099eae11a8beb13e17f6b9371c7c090c61bc061d.tar.xz
linux-099eae11a8beb13e17f6b9371c7c090c61bc061d.zip
s390/zcrypt: kernel oops at insmod of the z90crypt device driver
Kernel oops caused by invalid parameter at TAPQ instruction: On older systems where the QCI instruction is not available all possible domains are probed via TAPQ instruction. The range for the probe has been extended with the > 16 domain support now leading to a possible specification exception when this instruction is called for probing higher values within the new range. This may happen during insmod and/or ap bus reset only on machines without a QCI instruction (z10, z196, z114), zEC12 and newer systems are not affected. The fix modifies the domain checking function to limit the allowed range if no QCI info is available. Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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