Coly Li b407539849 bcache: avoid nr_stripes overflow in bcache_device_init() ... [ Upstream commit 65f0f017e7 ] For some block devices which large capacity (e.g. 8TB) but small io_opt size (e.g. 8 sectors), in bcache_device_init() the stripes number calcu- lated by, DIV_ROUND_UP_ULL(sectors, d->stripe_size); might be overflow to the unsigned int bcache_device->nr_stripes. This patch uses the uint64_t variable to store DIV_ROUND_UP_ULL() and after the value is checked to be available in unsigned int range, sets it to bache_device->nr_stripes. Then the overflow is avoided. Reported-and-tested-by: Ken Raeburn <raeburn@redhat.com> Signed-off-by: Coly Li <colyli@suse.de> Cc: stable@vger.kernel.org Link: https://bugzilla.redhat.com/show_bug.cgi?id=1783075 Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-08-26 10:40:48 +02:00
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bcache	bcache: avoid nr_stripes overflow in bcache_device_init()	2020-08-26 10:40:48 +02:00
persistent-data	…
Kconfig	…
Makefile	…
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-clone-metadata.c	dm clone: Fix handling of partial region discards	2020-04-17 10:50:24 +02:00
dm-clone-metadata.h	dm clone: replace spin_lock_irqsave with spin_lock_irq	2020-04-17 10:50:23 +02:00
dm-clone-target.c	dm clone: Add missing casts to prevent overflows and data corruption	2020-04-17 10:50:24 +02:00
dm-core.h	…
dm-crypt.c	dm crypt: avoid truncating the logical block size	2020-06-22 09:31:21 +02:00
dm-delay.c	…
dm-dust.c	…
dm-era-target.c	…
dm-exception-store.c	…
dm-exception-store.h	…
dm-flakey.c	…
dm-init.c	…
dm-integrity.c	dm integrity: fix integrity recalculation that is improperly skipped	2020-07-29 10:18:45 +02:00
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: switch paths in dm_blk_ioctl() code path	2020-06-24 17:50:13 +02:00
dm-mpath.h	…
dm-path-selector.c	…
dm-path-selector.h	…
dm-queue-length.c	…
dm-raid.c	…
dm-raid1.c	…
dm-region-hash.c	…
dm-round-robin.c	…
dm-rq.c	dm rq: don't call blk_mq_queue_stopped() in dm_stop_queue()	2020-08-21 13:05:33 +02:00
dm-rq.h	…
dm-service-time.c	…
dm-snap-persistent.c	…
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: fix hash block number in verity_fec_decode	2020-05-06 08:15:10 +02:00
dm-verity-fec.h	…
dm-verity-target.c	…
dm-verity-verify-sig.c	…
dm-verity-verify-sig.h	…
dm-verity.h	…
dm-writecache.c	dm writecache: reject asynchronous pmem devices	2020-07-16 08:16:47 +02:00
dm-zero.c	…
dm-zoned-metadata.c	dm zoned: return NULL if dmz_get_zone_for_reclaim() fails to find a zone	2020-06-24 17:50:31 +02:00
dm-zoned-reclaim.c	dm zoned: return NULL if dmz_get_zone_for_reclaim() fails to find a zone	2020-06-24 17:50:31 +02:00
dm-zoned-target.c	dm zoned: assign max_io_len correctly	2020-07-09 09:37:57 +02:00
dm-zoned.h	…
dm.c	dm integrity: fix integrity recalculation that is improperly skipped	2020-07-29 10:18:45 +02:00
dm.h	…
md-bitmap.c	…
md-bitmap.h	…
md-cluster.c	md-cluster: Fix potential error pointer dereference in resize_bitmaps()	2020-08-21 13:05:36 +02:00
md-cluster.h	…
md-faulty.c	…
md-linear.c	…
md-linear.h	…
md-multipath.c	…
md-multipath.h	…
md.c	md: raid0/linear: fix dereference before null check on pointer mddev	2020-08-19 08:15:58 +02:00
md.h	…
raid0.c	…
raid0.h	…
raid1-10.c	…
raid1.c	…
raid1.h	…
raid5-cache.c	…
raid5-log.h	…
raid5-ppl.c	…
raid5.c	md/raid5: Fix Force reconstruct-write io stuck in degraded raid5	2020-08-21 13:05:25 +02:00
raid5.h	…
raid10.c	…
raid10.h	…