Mauricio Faria de Oliveira a169d7c844 partitions/aix: fix usage of uninitialized lv_info and lvname structures ... [ Upstream commit 14cb2c8a6c5dae57ee3e2da10fa3db2b9087e39e ] The if-block that sets a successful return value in aix_partition() uses 'lvip[].pps_per_lv' and 'n[].name' potentially uninitialized. For example, if 'numlvs' is zero or alloc_lvn() fails, neither is initialized, but are used anyway if alloc_pvd() succeeds after it. So, make the alloc_pvd() call conditional on their initialization. This has been hit when attaching an apparently corrupted/stressed AIX LUN, misleading the kernel to pr_warn() invalid data and hang. [...] partition (null) (11 pp's found) is not contiguous [...] partition (null) (2 pp's found) is not contiguous [...] partition (null) (3 pp's found) is not contiguous [...] partition (null) (64 pp's found) is not contiguous Fixes: 6ceea22bbb ("partitions: add aix lvm partition support files") Signed-off-by: Mauricio Faria de Oliveira <mfo@canonical.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-09-19 22:48:59 +02:00
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partitions	partitions/aix: fix usage of uninitialized lv_info and lvname structures	2018-09-19 22:48:59 +02:00
bio-integrity.c	bio-integrity: Do not allocate integrity context for bio w/o data	2018-04-13 19:50:17 +02:00
bio.c
blk-cgroup.c	block,blkcg: use __GFP_NOWARN for best-effort allocations in blkcg	2018-09-19 22:48:56 +02:00
blk-core.c	block: do not use interruptible wait anywhere	2018-07-25 10:18:32 +02:00
blk-exec.c
blk-flush.c
blk-integrity.c
blk-ioc.c
blk-iopoll.c
blk-lib.c
blk-map.c
blk-merge.c
blk-mq-cpu.c
blk-mq-cpumap.c
blk-mq-sysfs.c
blk-mq-tag.c
blk-mq-tag.h
blk-mq.c	blk-mq: fix kernel oops in blk_mq_tag_idle()	2018-04-13 19:50:22 +02:00
blk-mq.h
blk-settings.c
blk-softirq.c
blk-sysfs.c
blk-tag.c
blk-throttle.c
blk-timeout.c
blk.h
bounce.c
bsg-lib.c
bsg.c
cfq-iosched.c	block,blkcg: use __GFP_NOWARN for best-effort allocations in blkcg	2018-09-19 22:48:56 +02:00
cmdline-parser.c
compat_ioctl.c
deadline-iosched.c
elevator.c
genhd.c
ioctl.c
ioprio.c
Kconfig
Kconfig.iosched
Makefile
noop-iosched.c
partition-generic.c	block: fix an error code in add_partition()	2018-04-13 19:50:10 +02:00
scsi_ioctl.c
t10-pi.c