Mikulas Patocka a7f79052d1 block: fix an integer overflow in logical block size ... commit ad6bf88a6c upstream. Logical block size has type unsigned short. That means that it can be at most 32768. However, there are architectures that can run with 64k pages (for example arm64) and on these architectures, it may be possible to create block devices with 64k block size. For exmaple (run this on an architecture with 64k pages): Mount will fail with this error because it tries to read the superblock using 2-sector access: device-mapper: writecache: I/O is not aligned, sector 2, size 1024, block size 65536 EXT4-fs (dm-0): unable to read superblock This patch changes the logical block size from unsigned short to unsigned int to avoid the overflow. Cc: stable@vger.kernel.org Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-01-23 08:21:29 +01:00
..
bcache	bcache: at least try to shrink 1 node in bch_mca_scan()	2020-01-04 19:12:58 +01:00
persistent-data	dm btree: increase rebalance threshold in __rebalance2()	2019-12-21 10:57:41 +01:00
dm-bio-prison-v1.c
dm-bio-prison-v1.h
dm-bio-prison-v2.c
dm-bio-prison-v2.h
dm-bio-record.h
dm-bufio.c
dm-builtin.c
dm-cache-background-tracker.c
dm-cache-background-tracker.h
dm-cache-block-types.h
dm-cache-metadata.c
dm-cache-metadata.h
dm-cache-policy-internal.h
dm-cache-policy-smq.c
dm-cache-policy.c
dm-cache-policy.h
dm-cache-target.c
dm-core.h
dm-crypt.c
dm-delay.c
dm-era-target.c
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	dm flakey: Properly corrupt multi-page bios.	2019-12-05 09:20:36 +01:00
dm-integrity.c
dm-io.c
dm-ioctl.c
dm-kcopyd.c
dm-linear.c
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c
dm-log.c
dm-mpath.c	dm mpath: remove harmful bio-based optimization	2019-12-21 10:57:40 +01:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid.c	dm raid: fix false -EBUSY when handling check/repair message	2019-12-05 09:20:37 +01:00
dm-raid1.c
dm-region-hash.c
dm-round-robin.c
dm-rq.c
dm-rq.h
dm-service-time.c
dm-snap-persistent.c	block: fix an integer overflow in logical block size	2020-01-23 08:21:29 +01:00
dm-snap-transient.c
dm-snap.c
dm-stats.c
dm-stats.h
dm-stripe.c
dm-switch.c
dm-sysfs.c
dm-table.c
dm-target.c
dm-thin-metadata.c
dm-thin-metadata.h
dm-thin.c
dm-uevent.c
dm-uevent.h
dm-unstripe.c
dm-verity-fec.c
dm-verity-fec.h
dm-verity-target.c
dm-verity.h
dm-writecache.c	dm writecache: handle REQ_FUA	2019-12-17 20:34:52 +01:00
dm-zero.c
dm-zoned-metadata.c	dm zoned: reduce overhead of backing device checks	2019-12-17 20:34:53 +01:00
dm-zoned-reclaim.c	dm zoned: reduce overhead of backing device checks	2019-12-17 20:34:53 +01:00
dm-zoned-target.c	dm zoned: reduce overhead of backing device checks	2019-12-17 20:34:53 +01:00
dm-zoned.h	dm zoned: reduce overhead of backing device checks	2019-12-17 20:34:53 +01:00
dm.c
dm.h
Kconfig
Makefile
md-bitmap.c	md/bitmap: avoid race window between md_bitmap_resize and bitmap_file_clear_bit	2019-12-31 16:35:25 +01:00
md-bitmap.h
md-cluster.c
md-cluster.h
md-faulty.c
md-linear.c	md: improve handling of bio with REQ_PREFLUSH in md_flush_request()	2019-12-17 20:34:55 +01:00
md-linear.h
md-multipath.c	md: improve handling of bio with REQ_PREFLUSH in md_flush_request()	2019-12-17 20:34:55 +01:00
md-multipath.h
md.c	md: improve handling of bio with REQ_PREFLUSH in md_flush_request()	2019-12-17 20:34:55 +01:00
md.h	md: improve handling of bio with REQ_PREFLUSH in md_flush_request()	2019-12-17 20:34:55 +01:00
raid0.c	block: fix an integer overflow in logical block size	2020-01-23 08:21:29 +01:00
raid0.h
raid1-10.c
raid1.c	md: raid1: check rdev before reference in raid1_sync_request func	2020-01-09 10:18:57 +01:00
raid1.h
raid5-cache.c
raid5-log.h
raid5-ppl.c
raid5.c	raid5: need to set STRIPE_HANDLE for batch head	2019-12-17 20:36:00 +01:00
raid5.h
raid10.c	md: improve handling of bio with REQ_PREFLUSH in md_flush_request()	2019-12-17 20:34:55 +01:00
raid10.h