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| author |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2020-10-04 19:04:26 +0100 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2020-11-05 13:01:42 +0100 |
| commit | a1fbc6750e212c5675a4e48d7f51d44607eb8756 (patch) | |
| tree | 93877e687ca82da0c30915921bdccee66f6ebf22 /samples/git:/ssh:/git@git.zx2c4.com | |
| parent | btrfs: convert data_seqcount to seqcount_mutex_t (diff) | |
| download | linux-dev-a1fbc6750e212c5675a4e48d7f51d44607eb8756.tar.xz linux-dev-a1fbc6750e212c5675a4e48d7f51d44607eb8756.zip | |
btrfs: fix potential overflow in cluster_pages_for_defrag on 32bit arch
On 32-bit systems, this shift will overflow for files larger than 4GB as
start_index is unsigned long while the calls to btrfs_delalloc_*_space
expect u64.
CC: stable@vger.kernel.org # 4.4+
Fixes: df480633b891 ("btrfs: extent-tree: Switch to new delalloc space reserve and release")
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Sterba <dsterba@suse.com>
[ define the variable instead of repeating the shift ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'samples/git:/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions