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| author |   Qu Wenruo <wqu@suse.com> | 2018-08-01 10:37:17 +0800 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2018-08-06 13:13:03 +0200 |
| commit | 7ef49515fa6727cb4b6f2f5b0ffbc5fc20a9f8c6 (patch) | |
| tree | 2013a3d439113c58479b799561e07dfb5d072b02 /fs/btrfs/volumes.h | |
| parent | btrfs: Check that each block group has corresponding chunk at mount time (diff) | |
| download | linux-dev-7ef49515fa6727cb4b6f2f5b0ffbc5fc20a9f8c6.tar.xz linux-dev-7ef49515fa6727cb4b6f2f5b0ffbc5fc20a9f8c6.zip | |
btrfs: Verify that every chunk has corresponding block group at mount time
If a crafted image has missing block group items, it could cause
unexpected behavior and breaks the assumption of 1:1 chunk<->block group
mapping.
Although we have the block group -> chunk mapping check, we still need
chunk -> block group mapping check.
This patch will do extra check to ensure each chunk has its
corresponding block group.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199847
Reported-by: Xu Wen <wen.xu@gatech.edu>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Gu Jinxiang <gujx@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/volumes.h')
0 files changed, 0 insertions, 0 deletions