openharmony/third_party_f2fs-tools
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3 Commits

Author SHA1 Message Date
Robin Hsu
e66e4c1f3b fsck: prevent buffer overrun in quota code 
A maliciously corrupted file systems can trigger buffer overruns in
the quota code used by fsck.

To fix it, quota file sizes are checked against real allocated
block index tables (inode, direct nodes, indirect nodes, double
indirect nodes).  If the size mismatches, the quota file is considered
corrupted and will be regenerated.

Signed-off-by: Robin Hsu <robinhsu@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2020-06-23 16:58:44 -07:00
Jaegeuk Kim
83c64019e8 fsck.f2fs: don't allocate new blocks on unclean shutdown 
We have to keep data for roll-forward recovery. Without this patch, we're
able to lose there-in data by quota overwrites.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2018-11-21 11:38:23 -08:00
Hyojun Kim
6c6bb35c89 fsck.f2fs: support quota 
This patch let fsck to check and fix quota file contents.

Signed-off-by: Hyojun Kim <hyojun@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
 2017-11-06 20:07:40 -08:00