Josef Bacik 5a95499843 btrfs: do not allow non subvolume root targets for snapshot ... commit a8892fd719 upstream. Our btrfs subvolume snapshot <source> <destination> utility enforces that <source> is the root of the subvolume, however this isn't enforced in the kernel. Update the kernel to also enforce this limitation to avoid problems with other users of this ioctl that don't have the appropriate checks in place. Reported-by: Martin Michaelis <code@mgjm.de> CC: stable@vger.kernel.org # 4.14+ Reviewed-by: Neal Gompa <neal@gompa.dev> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-12-20 15:17:41 +01:00
..
tests	btrfs: remove pointless and double ulist frees in error paths of qgroup tests	2022-11-26 09:24:32 +01:00
acl.c	overlayfs update for 5.15	2021-09-02 09:21:27 -07:00
async-thread.c	btrfs: fix memory ordering between normal and ordered work functions	2021-11-25 09:48:46 +01:00
async-thread.h
backref.c	btrfs: fix resolving backrefs for inline extent followed by prealloc	2023-01-12 11:58:50 +01:00
backref.h	btrfs: sink iterator parameter to btrfs_ioctl_logical_to_ino	2022-12-08 11:28:38 +01:00
block-group.c	btrfs: move out now unused BG from the reclaim list	2023-08-26 14:23:30 +02:00
block-group.h	btrfs: fix space cache corruption and potential double allocations	2022-09-05 10:30:12 +02:00
block-rsv.c	btrfs: don't free qgroup space unless specified	2023-05-17 11:50:21 +02:00
block-rsv.h
btrfs_inode.h	btrfs: put initial index value of a directory in a constant	2022-08-31 17:16:35 +02:00
check-integrity.c	btrfs: rename btrfs_bio to btrfs_io_context	2022-07-21 21:24:32 +02:00
check-integrity.h
compression.c	btrfs: remove unused parameter nr_pages in add_ra_bio_pages()	2022-04-20 09:34:04 +02:00
compression.h	btrfs: rework btrfs_decompress_buf2page()	2021-08-23 13:19:04 +02:00
ctree.c	btrfs: error out when reallocating block for defrag using a stale transaction	2023-10-25 11:59:01 +02:00
ctree.h	btrfs: move btrfs_pinned_by_swapfile prototype into volumes.h	2023-09-23 11:10:00 +02:00
delalloc-space.c	btrfs: don't arbitrarily slow down delalloc if we're committing	2023-11-28 16:56:29 +00:00
delalloc-space.h
delayed-inode.c	btrfs: improve error message after failure to add delayed dir index item	2023-10-06 13:18:16 +02:00
delayed-inode.h
delayed-ref.c	btrfs: fix lock inversion problem when doing qgroup extent tracing	2021-07-22 15:50:07 +02:00
delayed-ref.h	btrfs: add additional parameters to btrfs_init_tree_ref/btrfs_init_data_ref	2022-07-12 16:34:50 +02:00
dev-replace.c	btrfs: add info when mount fails due to stale replace target	2022-08-31 17:16:46 +02:00
dev-replace.h	btrfs: zoned: mark block groups to copy for device-replace	2021-02-09 02:46:07 +01:00
dir-item.c	btrfs: unify lookup return value when dir entry is missing	2021-10-07 22:06:32 +02:00
discard.c	btrfs: hold block group refcount during async discard	2023-03-10 09:39:56 +01:00
discard.h
disk-io.c	Revert "btrfs: add dmesg output for first mount and last unmount of a filesystem"	2023-12-13 18:36:50 +01:00
disk-io.h	btrfs: make thaw time super block check to also verify checksum	2023-01-12 11:59:20 +01:00
export.c	btrfs: fix type of parameter generation in btrfs_get_dentry	2022-11-10 18:15:38 +01:00
export.h	btrfs: fix type of parameter generation in btrfs_get_dentry	2022-11-10 18:15:38 +01:00
extent_io.c	btrfs: reset destination buffer when read_extent_buffer() gets invalid range	2023-10-06 13:18:11 +02:00
extent_io.h	btrfs: fix qgroup reserve overflow the qgroup limit	2022-04-13 20:59:23 +02:00
extent_map.c	btrfs: rename btrfs_bio to btrfs_io_context	2022-07-21 21:24:32 +02:00
extent_map.h
extent-io-tree.h
extent-tree.c	btrfs: return -EUCLEAN for delayed tree ref with a ref count not equals to 1	2023-10-25 11:58:59 +02:00
file-item.c	btrfs: handle memory allocation failure in btrfs_csum_one_bio	2023-06-21 15:59:13 +02:00
file.c	btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range	2022-12-31 13:14:47 +01:00
free-space-cache.c	btrfs: fix space cache inconsistency after error loading it from disk	2023-05-17 11:50:22 +02:00
free-space-cache.h	btrfs: zoned: track unusable bytes for zones	2021-02-09 02:46:03 +01:00
free-space-tree.c	btrfs: fix invalid delayed ref after subvolume creation failure	2022-07-12 16:34:50 +02:00
free-space-tree.h
inode-item.c
inode.c	btrfs: free qgroup rsv on io failure	2023-09-19 12:23:01 +02:00
ioctl.c	btrfs: do not allow non subvolume root targets for snapshot	2023-12-20 15:17:41 +01:00
Kconfig	btrfs: disable build on platforms having page size 256K	2021-06-22 14:11:57 +02:00
locking.c	btrfs: fix lockdep splat with reloc root extent buffers	2022-09-05 10:30:12 +02:00
locking.h	btrfs: fix lockdep splat with reloc root extent buffers	2022-09-05 10:30:12 +02:00
lzo.c	btrfs: prevent copying too big compressed lzo segment	2022-03-02 11:48:07 +01:00
Makefile	btrfs: initial fsverity support	2021-08-23 13:19:09 +02:00
misc.h	btrfs: use correct header for div_u64 in misc.h	2021-09-07 14:29:50 +02:00
ordered-data.c	btrfs: zoned: fix double counting of split ordered extent	2021-09-07 14:30:41 +02:00
ordered-data.h	btrfs: remove uptodate parameter from btrfs_dec_test_first_ordered_pending	2021-08-23 13:19:02 +02:00
orphan.c
print-tree.c	btrfs: print-tree: parent bytenr must be aligned to sector size	2023-05-17 11:50:22 +02:00
print-tree.h
props.c	btrfs: props: change how empty value is interpreted	2021-06-22 14:11:58 +02:00
props.h
qgroup.c	btrfs: fix race between quota disable and relocation	2023-08-03 10:22:26 +02:00
qgroup.h	btrfs: fix lock inversion problem when doing qgroup extent tracing	2021-07-22 15:50:07 +02:00
raid56.c	btrfs: raid56: properly handle the error when unable to find the missing stripe	2022-11-26 09:24:31 +01:00
raid56.h	btrfs: rename btrfs_bio to btrfs_io_context	2022-07-21 21:24:32 +02:00
rcu-string.h	btrfs: replace strncpy() with strscpy()	2023-01-12 11:59:05 +01:00
reada.c	btrfs: rename btrfs_bio to btrfs_io_context	2022-07-21 21:24:32 +02:00
ref-verify.c	btrfs: ref-verify: fix memory leaks in btrfs_ref_tree_mod()	2023-12-08 08:48:02 +01:00
ref-verify.h
reflink.c	btrfs: fix unexpected error path when reflinking an inline extent	2022-04-08 14:23:11 +02:00
reflink.h
relocation.c	btrfs: exit gracefully if reloc roots don't match	2023-08-16 18:22:02 +02:00
root-tree.c	btrfs: fix silent failure when deleting root reference	2022-08-31 17:16:46 +02:00
scrub.c	btrfs: scrub: try harder to mark RAID56 block groups read-only	2023-06-21 15:59:13 +02:00
send.c	btrfs: send: ensure send_fd is writable	2023-12-08 08:48:02 +01:00
send.h
space-info.c	btrfs: extend locking to all space_info members accesses	2022-04-08 14:23:02 +02:00
space-info.h	btrfs: rip out btrfs_space_info::total_bytes_pinned	2021-06-22 14:55:25 +02:00
struct-funcs.c	btrfs: add special case to setget helpers for 64k pages	2021-08-23 13:18:58 +02:00
subpage.c	btrfs: subpage: fix a potential use-after-free in writeback helper	2021-08-23 13:19:05 +02:00
subpage.h	btrfs: subpage: fix writeback which does not have ordered extent	2021-08-23 13:19:04 +02:00
super.c	Revert "btrfs: add dmesg output for first mount and last unmount of a filesystem"	2023-12-13 18:36:50 +01:00
sysfs.c	btrfs: sysfs: normalize the error handling branch in btrfs_init_sysfs()	2022-12-02 17:41:12 +01:00
sysfs.h
transaction.c	btrfs: don't start transaction when joining with TRANS_JOIN_NOSTART	2023-09-19 12:23:01 +02:00
transaction.h	btrfs: do not start relocation until in progress drops are done	2022-03-08 19:12:54 +01:00
tree-checker.c	btrfs: reject invalid reloc tree root keys with stack dump	2023-08-16 18:22:02 +02:00
tree-checker.h
tree-defrag.c	btrfs: fix an error handling path in btrfs_defrag_leaves()	2023-01-12 11:59:08 +01:00
tree-log.c	btrfs: initialize start_slot in btrfs_log_prealloc_extents	2023-10-25 11:58:59 +02:00
tree-log.h	btrfs: pass the dentry to btrfs_log_new_name() instead of the inode	2022-08-31 17:16:36 +02:00
tree-mod-log.c	btrfs: fix race when picking most recent mod log operation for an old root	2021-04-20 19:27:17 +02:00
tree-mod-log.h	btrfs: add and use helper to get lowest sequence number for the tree mod log	2021-04-19 17:25:17 +02:00
ulist.c
ulist.h
uuid-tree.c
verity.c	btrfs: fix transaction handle leak after verity rollback failure	2021-09-17 19:29:41 +02:00
volumes.c	btrfs: make error messages more clear when getting a chunk map	2023-12-08 08:48:02 +01:00
volumes.h	btrfs: add a helper to read the superblock metadata_uuid	2023-09-23 11:10:00 +02:00
xattr.c	btrfs: check if root is readonly while setting security xattr	2022-08-31 17:16:46 +02:00
xattr.h
zlib.c	btrfs: zlib: zero-initialize zlib workspace	2023-02-14 19:17:56 +01:00
zoned.c	btrfs: zero the buffer before marking it dirty in btrfs_redirty_list_add	2023-05-17 11:50:22 +02:00
zoned.h	btrfs: zoned: revive max_zone_append_bytes	2022-08-31 17:16:34 +02:00
zstd.c	Revert "btrfs: compression: drop kmap/kunmap from zstd"	2021-10-29 13:02:50 +02:00