Caleb Sander Mateos d6072557b9 block: zero non-PI portion of auto integrity buffer ... [ Upstream commit ca22c566b89164f6e670af56ecc45f47ef3df819 ] The auto-generated integrity buffer for writes needs to be fully initialized before being passed to the underlying block device, otherwise the uninitialized memory can be read back by userspace or anyone with physical access to the storage device. If protection information is generated, that portion of the integrity buffer is already initialized. The integrity data is also zeroed if PI generation is disabled via sysfs or the PI tuple size is 0. However, this misses the case where PI is generated and the PI tuple size is nonzero, but the metadata size is larger than the PI tuple. In this case, the remainder ("opaque") of the metadata is left uninitialized. Generalize the BLK_INTEGRITY_CSUM_NONE check to cover any case when the metadata is larger than just the PI tuple. Signed-off-by: Caleb Sander Mateos <csander@purestorage.com> Fixes: c546d6f438 ("block: only zero non-PI metadata tuples in bio_integrity_prep") Reviewed-by: Anuj Gupta <anuj20.g@samsung.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>		2026-01-23 11:21:16 +01:00
..
partitions	block: switch ->getgeo() to struct gendisk	2025-08-13 02:59:29 -04:00
badblocks.c	badblocks: Fix a nonsense WARN_ON() which checks whether a u64 variable < 0	2025-03-10 07:41:58 -06:00
bdev.c	block: add __must_check attribute to sb_min_blocksize()	2025-11-05 14:00:16 +01:00
bfq-cgroup.c	Revert "block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()"	2024-11-19 19:05:32 -07:00
bfq-iosched.c	block: fix race between wbt_enable_default and IO submission	2026-01-02 12:56:51 +01:00
bfq-iosched.h	lib/sbitmap: convert shallow_depth from one word to the whole sbitmap	2025-08-07 06:30:17 -06:00
bfq-wf2q.c
bio-integrity-auto.c	block: zero non-PI portion of auto integrity buffer	2026-01-23 11:21:16 +01:00
bio-integrity.c	blk-integrity: enable p2p source and destination	2025-09-09 10:33:27 -06:00
bio.c	block: rename bio_iov_iter_get_pages_aligned to bio_iov_iter_get_pages	2025-10-07 08:05:44 -06:00
blk-cgroup-fc-appid.c
blk-cgroup-rwstat.c
blk-cgroup-rwstat.h	blk-cgroup: rwstat: fix kernel-doc warnings in header file	2025-01-13 07:47:09 -07:00
blk-cgroup.c	block: Remove elevator_lock usage from blkg_conf frozen operations	2025-10-15 08:00:19 -06:00
blk-cgroup.h	block: initialize bio issue time in blk_mq_submit_bio()	2025-09-10 05:23:45 -06:00
blk-core.c	for-6.18/block-20250929	2025-10-02 10:16:56 -07:00
blk-crypto-fallback.c	blk-crypto: convert to use bio_submit_split_bioset()	2025-09-10 05:23:46 -06:00
blk-crypto-internal.h	blk-crypto: add ioctls to create and prepare hardware-wrapped keys	2025-02-10 09:54:19 -07:00
blk-crypto-profile.c	blk-crypto: export wrapped key functions	2025-05-06 19:08:08 +02:00
blk-crypto-sysfs.c	blk-crypto: show supported key types in sysfs	2025-02-10 09:54:19 -07:00
blk-crypto.c	blk-crypto: use BLK_STS_INVAL for alignment errors	2025-10-30 08:52:57 -06:00
blk-flush.c	block: remove unused parameter	2025-03-12 08:25:28 -06:00
blk-ia-ranges.c	block: get rid of request queue ->sysfs_dir_lock	2025-01-29 07:16:47 -07:00
blk-integrity.c	block: don't merge bios with different app_tags	2026-01-17 16:35:28 +01:00
blk-ioc.c	copy_process: pass clone_flags as u64 across calltree	2025-09-01 15:31:34 +02:00
blk-iocost.c	for-6.15/block-20250322	2025-03-26 18:08:55 -07:00
blk-iolatency.c	blk-mq: add QUEUE_FLAG_BIO_ISSUE_TIME	2025-09-10 05:23:45 -06:00
blk-ioprio.c	blk-cgroup: Simplify policy files registration	2025-03-11 09:22:55 -10:00
blk-ioprio.h
blk-lib.c	block: fix memory leak in __blkdev_issue_zero_pages	2025-12-18 14:03:36 +01:00
blk-map.c	block: rename bio_iov_iter_get_pages_aligned to bio_iov_iter_get_pages	2025-10-07 08:05:44 -06:00
blk-merge.c	block: fix ordering of recursive split IO	2025-09-10 05:23:46 -06:00
blk-mq-cpumap.c	blk-mq: add number of queue calc helper	2025-07-01 10:24:19 -06:00
blk-mq-debugfs.c	blk-mq: add QUEUE_FLAG_BIO_ISSUE_TIME	2025-09-10 05:23:45 -06:00
blk-mq-debugfs.h
blk-mq-dma.c	blk-mq-dma: bring back p2p request flags	2025-09-09 10:33:35 -06:00
blk-mq-sched.c	block: use {alloc|free}_sched data methods	2026-01-02 12:56:51 +01:00
blk-mq-sched.h	block: use {alloc|free}_sched data methods	2026-01-02 12:56:51 +01:00
blk-mq-sysfs.c	blk-mq: Move flush queue allocation into blk_mq_init_hctx()	2025-09-08 08:05:32 -06:00
blk-mq-tag.c	blk-mq: fix stale tag depth for shared sched tags in blk_mq_update_nr_requests()	2025-10-15 07:49:19 -06:00
blk-mq.c	blk-mq: skip CPU offline notify on unmapped hctx	2026-01-08 10:16:52 +01:00
blk-mq.h	blk-mq: fix stale tag depth for shared sched tags in blk_mq_update_nr_requests()	2025-10-15 07:49:19 -06:00
blk-pm.c	block: force noio scope in blk_mq_freeze_queue	2025-01-31 07:20:08 -07:00
blk-pm.h
blk-rq-qos.c	block: avoid cpu_hotplug_lock depedency on freeze_lock	2025-08-21 07:11:11 -06:00
blk-rq-qos.h	block: validate QoS before calling __rq_qos_done_bio()	2025-08-26 10:34:08 -06:00
blk-settings.c	block: validate pi_offset integrity limit	2026-01-17 16:35:33 +01:00
blk-stat.c	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
blk-stat.h	treewide: Switch/rename to timer_delete[_sync]()	2025-04-05 10:30:12 +02:00
blk-sysfs.c	block: Remove queue freezing from several sysfs store callbacks	2026-01-02 12:57:11 +01:00
blk-throttle.c	block/blk-throttle: Fix throttle slice time for SSDs	2025-12-18 14:03:03 +01:00
blk-throttle.h	blk-throttle: fix access race during throttle policy activation	2025-09-08 08:24:44 -06:00
blk-timeout.c
blk-wbt.c	block: fix race between wbt_enable_default and IO submission	2026-01-02 12:56:51 +01:00
blk-wbt.h	block: fix race between wbt_enable_default and IO submission	2026-01-02 12:56:51 +01:00
blk-zoned.c	block: fix NULL pointer dereference in blk_zone_reset_all_bio_endio()	2026-01-08 10:17:21 +01:00
blk.h	block: handle zone management operations completions	2026-01-08 10:16:52 +01:00
bsg-lib.c	block: remove unused parameter 'q' parameter in __blk_rq_map_sg()	2025-03-13 05:46:19 -06:00
bsg.c
disk-events.c
early-lookup.c
elevator.c	block: fix race between wbt_enable_default and IO submission	2026-01-02 12:56:51 +01:00
elevator.h	block: fix race between wbt_enable_default and IO submission	2026-01-02 12:56:51 +01:00
fops.c	block: move bio_iov_iter_get_bdev_pages to block/fops.c	2025-10-07 08:05:44 -06:00
genhd.c	block: rate-limit capacity change info log	2026-01-02 12:57:08 +01:00
holder.c
ioctl.c	for-6.18/block-20250929	2025-10-02 10:16:56 -07:00
ioprio.c	block: remove test of incorrect io priority level	2025-05-08 09:04:12 -06:00
Kconfig	block: Remove obsolete configs BLK_MQ_{PCI,VIRTIO}	2025-05-14 05:43:56 -06:00
Kconfig.iosched
kyber-iosched.c	blk-mq: fix elevator depth_updated method	2025-09-05 13:52:52 -06:00
Makefile	blk-mq: move the DMA mapping code to a separate file	2025-05-16 08:43:41 -06:00
mq-deadline.c	block/mq-deadline: Switch back to a single dispatch list	2025-12-18 14:02:33 +01:00
opal_proto.h
sed-opal.c	block: sed-opal: add ioctl IOC_OPAL_SET_SID_PW	2024-10-22 08:16:40 -06:00
t10-pi.c	block: rename tuple_size field in blk_integrity to metadata_size	2025-07-01 14:00:14 +02:00