Caleb Sander Mateos ca22c566b8 block: zero non-PI portion of auto integrity buffer ... 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>		2026-01-10 10:22:07 -07:00
..
partitions	block: use min() instead of min_t()	2025-11-20 07:44:29 -07:00
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	vfs-6.19-rc1.inode	2025-12-01 09:02:34 -08:00
bfq-cgroup.c	block,bfq: fix aux stat accumulation destination	2025-12-28 09:03:51 -07:00
bfq-iosched.c	block: fix race between wbt_enable_default and IO submission	2025-12-12 12:51:11 -07:00
bfq-iosched.h	block, bfq: update outdated comment	2026-01-01 08:57:37 -07:00
bfq-wf2q.c	block, bfq: inject I/O to underutilized actuators	2023-01-29 15:18:33 -07:00
bio-integrity-auto.c	block: zero non-PI portion of auto integrity buffer	2026-01-10 10:22:07 -07:00
bio-integrity.c	block: make bio auto-integrity deadlock safe	2025-11-04 12:41:50 -07:00
bio.c	block: prohibit calls to bio_chain_endio	2025-12-09 10:20:03 -07:00
blk-cgroup-fc-appid.c	block: Replace all non-returning strlcpy with strscpy	2023-06-01 09:13:31 -06:00
blk-cgroup-rwstat.c	blk-cgroup: use group allocation/free of per-cpu counters API	2024-04-03 09:10:17 -06:00
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	block: fix typos in comments and strings in blk-core	2025-11-25 10:39:49 -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	2026-01-06 19:10:08 -07:00
blk-ioc.c	copy_process: pass clone_flags as u64 across calltree	2025-09-01 15:31:34 +02:00
blk-iocost.c	block: use min() instead of min_t()	2025-11-20 07:44:29 -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-ioprio: remove per-disk structure	2024-07-28 16:47:51 -06:00
blk-lib.c	block: fix memory leak in __blkdev_issue_zero_pages	2025-12-04 15:43:28 -07:00
blk-map.c	block: use bio_alloc_bioset for passthru IO by default	2025-12-04 07:18:54 -07:00
blk-merge.c	Revert "block: consider discard merge last"	2025-11-18 15:00:12 -07:00
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	block: Replace zone_wlock debugfs entry with zone_wplugs entry	2024-04-17 08:44:03 -06:00
blk-mq-dma.c	blk-mq-dma: always initialize dma state	2025-12-10 13:41:11 -07:00
blk-mq-sched.c	block: use {alloc|free}_sched data methods	2025-11-13 09:27:49 -07:00
blk-mq-sched.h	block: use {alloc|free}_sched data methods	2025-11-13 09:27:49 -07:00
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: use array manage hctx map instead of xarray	2025-11-28 09:09:19 -07:00
blk-mq.c	blk-mq: avoid stall during boot due to synchronize_rcu_expedited	2026-01-07 08:10:42 -07:00
blk-mq.h	blk-mq: use queue_hctx in blk_mq_map_queue_type	2025-12-01 07:18:31 -07:00
blk-pm.c	block: force noio scope in blk_mq_freeze_queue	2025-01-31 07:20:08 -07:00
blk-pm.h	block: Remove unused blk_pm_*() function definitions	2021-02-22 06:33:48 -07:00
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	blk-rq-qos: Remove unlikely() hints from QoS checks	2026-01-06 19:08:23 -07:00
blk-settings.c	block: validate interval_exp integrity limit	2025-12-18 09:51:49 -07:00
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: fix race between wbt_enable_default and IO submission	2025-12-12 12:51:11 -07:00
blk-throttle.c	block/blk-throttle: Remove throtl_slice from struct throtl_data	2025-11-17 09:39:48 -07:00
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	2025-12-12 12:51:11 -07:00
blk-wbt.h	block: fix race between wbt_enable_default and IO submission	2025-12-12 12:51:11 -07:00
blk-zoned.c	block: fix cached zone reports on devices with native zone append	2025-12-09 22:35:54 -07:00
blk.h	block: unify elevator tags and type xarrays into struct elv_change_ctx	2025-11-13 09:27:49 -07:00
bsg-lib.c	block: remove unused parameter 'q' parameter in __blk_rq_map_sg()	2025-03-13 05:46:19 -06:00
bsg.c	SCSI misc on 20230629	2023-06-30 11:57:07 -07:00
disk-events.c	block: move bdev_mark_dead out of disk_check_media_change	2023-10-28 13:29:23 +02:00
early-lookup.c	wrapper for access to ->bd_partno	2024-05-02 17:48:09 -04:00
elevator.c	block: fix race between wbt_enable_default and IO submission	2025-12-12 12:51:11 -07:00
elevator.h	block: fix race between wbt_enable_default and IO submission	2025-12-12 12:51:11 -07:00
fops.c	block: enable per-cpu bio cache by default	2025-12-04 07:19:24 -07:00
genhd.c	block: Remove references to __device_add_disk()	2025-11-25 10:36:37 -07:00
holder.c	block: fix deadlock between bd_link_disk_holder and partition scan	2024-02-23 07:44:19 -07:00
ioctl.c	block: add allocation size check in blkdev_pr_read_keys()	2025-12-17 07:35:22 -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	block: Default to use cgroup support for BFQ	2023-01-30 09:42:42 -07:00
kyber-iosched.c	block: define alloc_sched_data and free_sched_data methods for kyber	2025-11-13 09:27:49 -07:00
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	2025-10-20 10:37:42 -06:00
opal_proto.h	block: sed-opal: handle empty atoms when parsing response	2024-02-16 15:52:45 -07:00
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