Goffredo Baroncelli 2d8ce70a08 btrfs: avoid overflow when sector_t is 32 bit ... Jean-Denis Girard noticed commit c821e7f3 "pass bytes to btrfs_bio_alloc" (https://patchwork.kernel.org/patch/9763081/) introduces a regression on 32 bit machines. When CONFIG_LBDAF is _not_ defined (CONFIG_LBDAF == Support for large (2TB+) block devices and files) sector_t is 32 bit on 32bit machines. In the function submit_extent_page, 'sector' (which is sector_t type) is multiplied by 512 to convert it from sectors to bytes, leading to an overflow when the disk is bigger than 4GB (!). I added a cast to u64 to avoid overflow. Fixes: c821e7f3 ("btrfs: pass bytes to btrfs_bio_alloc") CC: stable@vger.kernel.org # 4.13+ Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it> Tested-by: Jean-Denis Girard <jd.girard@sysnux.pf> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>		2017-10-04 16:22:56 +02:00
..
tests	btrfs: remove unused sectorsize member	2017-08-16 14:19:53 +02:00
acl.c	btrfs: preserve i_mode if __btrfs_set_acl() fails	2017-08-21 17:47:42 +02:00
async-thread.c	btrfs: constify tracepoint arguments	2017-08-16 14:19:53 +02:00
async-thread.h	btrfs: constify tracepoint arguments	2017-08-16 14:19:53 +02:00
backref.c	Btrfs: convert to use btrfs_get_extent_inline_ref_type	2017-08-21 17:47:43 +02:00
backref.h	btrfs: backref, add tracepoints for prelim_ref insertion and merging	2017-08-16 16:12:01 +02:00
btrfs_inode.h	btrfs: separate defrag and property compression	2017-08-16 16:12:05 +02:00
check-integrity.c	btrfs: use appropriate define for the fsid	2017-08-18 16:36:29 +02:00
check-integrity.h	btrfs: take an fs_info directly when the root is not used otherwise	2016-12-06 16:06:59 +01:00
compression.c	Btrfs: skip checksum when reading compressed data if some IO have failed	2017-09-26 14:53:26 +02:00
compression.h	btrfs: remove unused BTRFS_COMPRESS_LAST	2017-08-18 16:36:29 +02:00
ctree.c	btrfs: get fs_info from eb in btrfs_print_leaf, remove argument	2017-08-16 16:12:03 +02:00
ctree.h	btrfs: remove BTRFS_FS_QUOTA_DISABLING flag	2017-09-26 14:52:57 +02:00
dedupe.h	btrfs: expand cow_file_range() to support in-band dedup and subpage-blocksize	2016-07-26 13:52:25 +02:00
delayed-inode.c	btrfs: increase ctx->pos for delayed dir index	2017-08-18 16:36:20 +02:00
delayed-inode.h	btrfs: convert btrfs_delayed_item.refs from atomic_t to refcount_t	2017-04-18 14:07:23 +02:00
delayed-ref.c	Btrfs: return old and new total ref mods when adding delayed refs	2017-06-29 20:17:01 +02:00
delayed-ref.h	Btrfs: return old and new total ref mods when adding delayed refs	2017-06-29 20:17:01 +02:00
dev-replace.c	btrfs: simplify btrfs_dev_replace_kthread	2017-08-16 16:12:03 +02:00
dev-replace.h	btrfs: constify device path passed to relevant helpers	2017-02-28 14:26:07 +01:00
dir-item.c	btrfs: fix validation of XATTR_ITEM dir items	2017-06-29 20:06:11 +02:00
disk-io.c	Btrfs: do not backup tree roots when fsync	2017-09-26 14:53:04 +02:00
disk-io.h	btrfs: use named constant for bdev blocksize	2017-08-16 16:12:04 +02:00
export.c	btrfs: Check name_len before reading btrfs_get_name	2017-06-21 19:16:04 +02:00
export.h
extent_io.c	btrfs: avoid overflow when sector_t is 32 bit	2017-10-04 16:22:56 +02:00
extent_io.h	btrfs: struct-funcs, constify readers	2017-08-16 14:19:53 +02:00
extent_map.c	btrfs: convert extent_map.refs from atomic_t to refcount_t	2017-04-18 14:07:23 +02:00
extent_map.h	btrfs: convert extent_map.refs from atomic_t to refcount_t	2017-04-18 14:07:23 +02:00
extent-tree.c	btrfs: pass fs_info to btrfs_del_root instead of tree_root	2017-08-21 17:49:54 +02:00
file-item.c	Merge branch 'for-4.13-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux	2017-07-05 16:41:23 -07:00
file.c	btrfs: fix readdir deadlock with pagefault	2017-08-16 16:12:05 +02:00
free-space-cache.c	btrfs: drop newlines from strings when using btrfs_* helpers	2017-08-16 16:12:02 +02:00
free-space-cache.h	btrfs: free-space-cache, clean up unnecessary root arguments	2017-02-17 12:03:56 +01:00
free-space-tree.c	btrfs: pass fs_info to btrfs_del_root instead of tree_root	2017-08-21 17:49:54 +02:00
free-space-tree.h	btrfs: expose internal free space tree routine only if sanity tests are enabled	2017-08-18 16:36:29 +02:00
hash.c	crypto: Work around deallocated stack frame reference gcc bug on sparc.	2017-06-08 17:36:03 +08:00
hash.h	btrfs: advertise which crc32c implementation is being used at module load	2016-06-06 14:08:28 +02:00
inode-item.c	btrfs: take an fs_info directly when the root is not used otherwise	2016-12-06 16:06:59 +01:00
inode-map.c	btrfs: qgroup: Introduce extent changeset for qgroup reserve functions	2017-06-29 20:17:02 +02:00
inode-map.h	Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots	2016-01-15 19:25:02 +01:00
inode.c	Btrfs: fix unexpected result when dio reading corrupted blocks	2017-09-26 14:54:07 +02:00
ioctl.c	btrfs: propagate error to btrfs_cmp_data_prepare caller	2017-09-26 14:52:31 +02:00
Kconfig
locking.c	btrfs: cleanup, remove stray return statements	2016-01-07 14:30:52 +01:00
locking.h
lzo.c	btrfs: switch to kvmalloc and GFP_KERNEL in lzo/zlib alloc_workspace	2017-06-19 18:26:02 +02:00
Makefile	Btrfs: add free space tree sanity tests	2015-12-17 12:16:47 -08:00
math.h
ordered-data.c	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
ordered-data.h	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
orphan.c
print-tree.c	Btrfs: add one more sanity check for shared ref type	2017-08-21 17:47:43 +02:00
print-tree.h	btrfs: get fs_info from eb in btrfs_print_tree, remove argument	2017-08-16 16:12:03 +02:00
props.c	btrfs: prepare for extensions in compression options	2017-08-16 16:12:05 +02:00
props.h
qgroup.c	btrfs: Report error on removing qgroup if del_qgroup_item fails	2017-09-26 14:54:01 +02:00
qgroup.h	btrfs: qgroup: Fix qgroup reserved space underflow by only freeing reserved ranges	2017-06-29 20:17:02 +02:00
raid56.c	Merge branch 'for-4.13-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux	2017-07-14 22:55:52 -07:00
raid56.h	btrfs: take an fs_info directly when the root is not used otherwise	2016-12-06 16:06:59 +01:00
rcu-string.h
reada.c	btrfs: remove unused member err from reada_extent	2017-06-19 18:25:59 +02:00
relocation.c	btrfs: fix NULL pointer dereference from free_reloc_roots()	2017-09-26 14:51:49 +02:00
root-tree.c	btrfs: pass fs_info to btrfs_del_root instead of tree_root	2017-08-21 17:49:54 +02:00
scrub.c	btrfs: scrub: simplify scrub worker initialization	2017-08-21 17:47:42 +02:00
send.c	Btrfs: send: fix error number for unknown inode types	2017-09-26 14:52:06 +02:00
send.h	Btrfs: use linux/sizes.h to represent constants	2016-01-07 14:38:02 +01:00
struct-funcs.c	btrfs: struct-funcs, constify readers	2017-08-16 14:19:53 +02:00
super.c	btrfs: Do not use data_alloc_cluster in ssd mode	2017-08-21 17:47:42 +02:00
sysfs.c	btrfs: Add quota_override knob into sysfs	2017-06-19 18:25:58 +02:00
sysfs.h	btrfs: sysfs: introduce helper for syncing bits with sysfs files	2016-01-21 18:50:40 +01:00
transaction.c	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
transaction.h	btrfs: remove unused qgroup members from btrfs_trans_handle	2017-04-18 14:07:25 +02:00
tree-defrag.c	Btrfs: fix locking bugs when defragging leaves	2015-12-18 02:51:32 +00:00
tree-log.c	btrfs: log csums for all modified extents	2017-09-26 14:54:16 +02:00
tree-log.h	btrfs: Make btrfs_del_inode_ref take btrfs_inode	2017-02-14 15:50:54 +01:00
ulist.c	btrfs: ulist: rename ulist_fini to ulist_release	2017-02-17 12:03:50 +01:00
ulist.h	btrfs: ulist: rename ulist_fini to ulist_release	2017-02-17 12:03:50 +01:00
uuid-tree.c	btrfs: return the actual error value from from btrfs_uuid_tree_iterate	2016-12-19 18:08:15 +01:00
volumes.c	Btrfs: use btrfs_op instead of bio_op in __btrfs_map_block	2017-09-26 14:53:17 +02:00
volumes.h	btrfs: Remove unused sectorsize variable from struct map_lookup	2017-08-18 16:36:29 +02:00
xattr.c	btrfs: Check name_len with boundary in verify dir_item	2017-06-21 19:16:04 +02:00
xattr.h	btrfs: Switch to generic xattr handlers	2016-05-17 19:17:09 -04:00
zlib.c	btrfs: switch to kvmalloc and GFP_KERNEL in lzo/zlib alloc_workspace	2017-06-19 18:26:02 +02:00