linux/block
Linus Torvalds fa2b906f51 vfs-6.7-rc3.fixes
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Merge tag 'vfs-6.7-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:

 - Avoid calling back into LSMs from vfs_getattr_nosec() calls.

   IMA used to query inode properties accessing raw inode fields without
   dedicated helpers. That was finally fixed a few releases ago by
   forcing IMA to use vfs_getattr_nosec() helpers.

   The goal of the vfs_getattr_nosec() helper is to query for attributes
   without calling into the LSM layer which would be quite problematic
   because incredibly IMA is called from __fput()...

     __fput()
       -> ima_file_free()

   What it does is to call back into the filesystem to update the file's
   IMA xattr. Querying the inode without using vfs_getattr_nosec() meant
   that IMA didn't handle stacking filesystems such as overlayfs
   correctly. So the switch to vfs_getattr_nosec() is quite correct. But
   the switch to vfs_getattr_nosec() revealed another bug when used on
   stacking filesystems:

     __fput()
       -> ima_file_free()
          -> vfs_getattr_nosec()
             -> i_op->getattr::ovl_getattr()
                -> vfs_getattr()
                   -> i_op->getattr::$WHATEVER_UNDERLYING_FS_getattr()
                      -> security_inode_getattr() # calls back into LSMs

   Now, if that __fput() happens from task_work_run() of an exiting task
   current->fs and various other pointer could already be NULL. So
   anything in the LSM layer relying on that not being NULL would be
   quite surprised.

   Fix that by passing the information that this is a security request
   through to the stacking filesystem by adding a new internal
   ATT_GETATTR_NOSEC flag. Now the callchain becomes:

     __fput()
       -> ima_file_free()
          -> vfs_getattr_nosec()
             -> i_op->getattr::ovl_getattr()
                -> if (AT_GETATTR_NOSEC)
                          vfs_getattr_nosec()
                   else
                          vfs_getattr()
                   -> i_op->getattr::$WHATEVER_UNDERLYING_FS_getattr()

 - Fix a bug introduced with the iov_iter rework from last cycle.

   This broke /proc/kcore by copying too much and without the correct
   offset.

 - Add a missing NULL check when allocating the root inode in
   autofs_fill_super().

 - Fix stable writes for multi-device filesystems (xfs, btrfs etc) and
   the block device pseudo filesystem.

   Stable writes used to be a superblock flag only, making it a per
   filesystem property. Add an additional AS_STABLE_WRITES mapping flag
   to allow for fine-grained control.

 - Ensure that offset_iterate_dir() returns 0 after reaching the end of
   a directory so it adheres to getdents() convention.

* tag 'vfs-6.7-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  libfs: getdents() should return 0 after reaching EOD
  xfs: respect the stable writes flag on the RT device
  xfs: clean up FS_XFLAG_REALTIME handling in xfs_ioctl_setattr_xflags
  block: update the stable_writes flag in bdev_add
  filemap: add a per-mapping stable writes flag
  autofs: add: new_inode check in autofs_fill_super()
  iov_iter: fix copy_page_to_iter_nofault()
  fs: Pass AT_GETATTR_NOSEC flag to getattr interface function
2023-11-24 09:45:40 -08:00
..
partitions for-6.7/block-2023-10-30 2023-11-01 12:30:07 -10:00
badblocks.c badblocks: switch to the improved badblock handling code 2023-09-26 00:44:33 -06:00
bdev.c block: update the stable_writes flag in bdev_add 2023-11-20 15:05:18 +01:00
bfq-cgroup.c blkcg: Restructure blkg_conf_prep() and friends 2023-04-13 06:46:49 -06:00
bfq-iosched.c SCSI misc on 20230629 2023-06-30 11:57:07 -07:00
bfq-iosched.h block, bfq: remove BFQ_WEIGHT_LEGACY_DFL 2023-04-06 16:17:32 -06:00
bfq-wf2q.c block, bfq: inject I/O to underutilized actuators 2023-01-29 15:18:33 -07:00
bio-integrity.c bio-integrity: create multi-page bvecs in bio_integrity_add_page() 2023-08-09 16:05:35 -06:00
bio.c block: Bring back zero_fill_bio_iter 2023-08-14 15:40:42 -06:00
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 Revert "blk-cgroup: pin the gendisk in struct blkcg_gq" 2023-02-14 14:24:09 -07:00
blk-cgroup-rwstat.h
blk-cgroup.c blk-cgroup: bypass blkcg_deactivate_policy after destroying 2023-11-17 10:48:58 -07:00
blk-cgroup.h blk-cgroup: avoid to warn !rcu_read_lock_held() in blkg_lookup() 2023-11-17 10:48:58 -07:00
blk-core.c blk-core: use pr_warn_ratelimited() in bio_check_ro() 2023-11-07 08:15:23 -07:00
blk-crypto-fallback.c blk-crypto: dynamically allocate fallback profile 2023-08-18 15:00:39 -06:00
blk-crypto-internal.h blk-crypto: remove blk_crypto_insert_cloned_request() 2023-03-16 09:35:09 -06:00
blk-crypto-profile.c blk-crypto: use dynamic lock class for blk_crypto_profile::lock 2023-07-05 16:36:12 -06:00
blk-crypto-sysfs.c block: make kobj_type structures constant 2023-02-09 09:38:16 -07:00
blk-crypto.c blk-crypto: make blk_crypto_evict_key() more robust 2023-03-16 09:35:09 -06:00
blk-flush.c blk-mq: remove RQF_MQ_INFLIGHT 2023-09-22 08:52:13 -06:00
blk-ia-ranges.c block: make kobj_type structures constant 2023-02-09 09:38:16 -07:00
blk-integrity.c blk-integrity: register sysfs attributes on struct device 2023-04-26 18:22:50 -06:00
blk-ioc.c blk-ioc: fix recursive spin_lock/unlock_irq() in ioc_clear_queue() 2023-06-07 07:51:00 -06:00
blk-iocost.c blk-iocost: fix queue stats accounting 2023-08-09 16:04:14 -06:00
blk-iolatency.c block: fix bad lockdep annotation in blk-iolatency 2023-08-10 17:24:53 -06:00
blk-ioprio.c blk-ioprio: Introduce promote-to-rt policy 2023-06-06 22:26:26 -06:00
blk-ioprio.h blk-ioprio: pass a gendisk to blk_ioprio_init and blk_ioprio_exit 2022-09-26 19:09:31 -06:00
blk-lib.c blk-lib: fix blkdev_issue_secure_erase 2022-09-15 00:25:17 -06:00
blk-map.c block: fix pin count management when merging same-page segments 2023-09-06 07:32:27 -06:00
blk-merge.c blk-mq: release crypto keyslot before reporting I/O complete 2023-03-16 09:35:09 -06:00
blk-mq-cpumap.c blk-mq: include <linux/blk-mq.h> in block/blk-mq.h 2023-04-13 06:52:29 -06:00
blk-mq-debugfs-zoned.c
blk-mq-debugfs.c blk-mq: remove RQF_MQ_INFLIGHT 2023-09-22 08:52:13 -06:00
blk-mq-debugfs.h
blk-mq-pci.c blk-mq: include <linux/blk-mq.h> in block/blk-mq.h 2023-04-13 06:52:29 -06:00
blk-mq-sched.c blk-mq: cleanup __blk_mq_sched_dispatch_requests 2023-04-13 06:57:18 -06:00
blk-mq-sched.h blk-mq: make sure elevator callbacks aren't called for passthrough request 2023-05-18 19:42:54 -06:00
blk-mq-sysfs.c blk-mq: include <linux/blk-mq.h> in block/blk-mq.h 2023-04-13 06:52:29 -06:00
blk-mq-tag.c for-6.5/block-2023-06-23 2023-06-26 12:47:20 -07:00
blk-mq-virtio.c blk-mq: include <linux/blk-mq.h> in block/blk-mq.h 2023-04-13 06:52:29 -06:00
blk-mq.c blk-mq: make sure active queue usage is held for bio_integrity_prep() 2023-11-13 08:52:52 -07:00
blk-mq.h blk-mq: update driver tags request table when start request 2023-09-22 08:52:13 -06:00
blk-pm.c block: Remove blk_set_runtime_active() 2023-11-20 10:22:40 -07:00
blk-pm.h
blk-rq-qos.c block: correct stale comment in rq_qos_wait 2023-09-18 14:15:28 -06:00
blk-rq-qos.h blk-iolatency: s/blkcg_rq_qos/iolat_rq_qos/ 2023-04-13 06:46:49 -06:00
blk-settings.c block: don't allow enabling a cache on devices that don't support it 2023-07-17 08:18:18 -06:00
blk-stat.c blk-mq: include <linux/blk-mq.h> in block/blk-mq.h 2023-04-13 06:52:29 -06:00
blk-stat.h
blk-sysfs.c block: don't allow enabling a cache on devices that don't support it 2023-07-17 08:18:18 -06:00
blk-throttle.c blk-throttle: fix lockdep warning of "cgroup_mutex or RCU read lock required!" 2023-11-17 10:48:58 -07:00
blk-throttle.h blk-throttle: print signed value 'carryover_bytes/ios' for user 2023-08-30 10:15:01 -06:00
blk-timeout.c
blk-wbt.c Merge branch 'for-6.5/block-late' into block-6.5 2023-06-28 16:08:19 -06:00
blk-wbt.h blk-wbt: don't create wbt sysfs entry if CONFIG_BLK_WBT is disabled 2023-06-26 09:53:36 -06:00
blk-zoned.c Merge branch '6.5/scsi-staging' into 6.5/scsi-fixes 2023-07-11 12:15:15 -04:00
blk.h block: Add some exports for bcachefs 2023-08-14 15:40:42 -06:00
bounce.c
bsg-lib.c scsi: replace the fmode_t argument to ->sg_io_fn with a simple bool 2023-06-12 08:04:04 -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 block: don't return -EINVAL for not found names in devt_from_devname 2023-06-22 09:09:33 -06:00
elevator.c blk-mq: release scheduler resource when request completes 2023-08-19 07:47:17 -06:00
elevator.h blk-mq: pass a flags argument to elevator_type->insert_requests 2023-04-13 06:52:30 -06:00
fops.c block: Use bdev_open_by_dev() in blkdev_open() 2023-10-28 13:29:16 +02:00
genhd.c block: assert that we're not holding open_mutex over blk_report_disk_dead 2023-10-28 13:29:23 +02:00
holder.c block: don't allow a disk link holder to itself 2022-11-16 15:19:56 -07:00
ioctl.c fs: Avoid grabbing sb->s_umount under bdev->bd_holder_lock 2023-10-28 13:29:22 +02:00
ioprio.c scsi: block: Improve ioprio value validity checks 2023-06-16 12:04:30 -04:00
Kconfig powerpc/pseries: PLPKS SED Opal keystore support 2023-10-17 09:10:06 -06:00
Kconfig.iosched block: Default to use cgroup support for BFQ 2023-01-30 09:42:42 -07:00
kyber-iosched.c blk-mq: pass a flags argument to elevator_type->insert_requests 2023-04-13 06:52:30 -06:00
Makefile block: move the code to do early boot lookup of block devices to block/ 2023-06-05 10:57:40 -06:00
mq-deadline.c block/mq-deadline: use correct way to throttling write requests 2023-08-08 15:46:41 -06:00
opal_proto.h block: sed-opal: Implement IOC_OPAL_REVERT_LSP 2023-08-22 11:10:26 -06:00
sed-opal.c for-6.7/block-2023-10-30 2023-11-01 12:30:07 -10:00
t10-pi.c