| commit | ee1941e4fec601a8444f49c7dad04ad700d501a6 | [log] [tgz] |
|---|---|---|
| author | Alex Shumsky <alexthreed@gmail.com> | Wed Jun 19 00:41:38 2024 +0300 |
| committer | Tom Rini <trini@konsulko.com> | Wed Jun 26 09:55:53 2024 -0600 |
| tree | 0846207bf11e3385bd7b3b283b8e963cedf470e6 | |
| parent | 5d9aca5e043084d08666f4f7a87a1d416d9d6421 [diff] |
fs: btrfs: fix out of bounds write
Fix btrfs_read/read_and_truncate_page write out of bounds of destination
buffer. Old behavior break bootstd malloc'd buffers of exact file size.
Previously this OOB write have not been noticed because distroboot usually
read files into huge static memory areas.
Signed-off-by: Alex Shumsky <alexthreed@gmail.com>
Fixes: e342718 ("fs: btrfs: Implement btrfs_file_read()")
Reviewed-by: Qu Wenruo <wqu@suse.com>