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| author | Chris Mason <clm@fb.com> | 2015-04-06 18:17:00 -0700 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2015-04-10 14:07:29 -0700 |
| commit | cdfb080e1853660952db5e5332727e59427856df (patch) | |
| tree | 43c59bd16f29e6e8fb9ff045ce20a16a4275c715 /fs/btrfs/disk-io.c | |
| parent | 1bbc621ef28462456131c035eaeb5567a1a2a2fe (diff) | |
| download | linux-cdfb080e1853660952db5e5332727e59427856df.tar.gz linux-cdfb080e1853660952db5e5332727e59427856df.tar.bz2 linux-cdfb080e1853660952db5e5332727e59427856df.zip | |
Btrfs: fix use after free when close_ctree frees the orphan_rsv
Near the end of close_ctree, we're calling btrfs_free_block_rsv
to free up the orphan rsv. The problem is this call updates the
space_info, which has already been freed.
This adds a new __ function that directly calls kfree instead of trying
to update the space infos.
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index b5e3d5f6400a..62cd3b63190d 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3766,7 +3766,7 @@ void close_ctree(struct btrfs_root *root) btrfs_free_stripe_hash_table(fs_info); - btrfs_free_block_rsv(root, root->orphan_block_rsv); + __btrfs_free_block_rsv(root->orphan_block_rsv); root->orphan_block_rsv = NULL; lock_chunks(root); |