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| author | Yuezhang Mo <Yuezhang.Mo@sony.com> | 2024-12-12 16:29:23 +0800 |
|---|---|---|
| committer | Namjae Jeon <linkinjeon@kernel.org> | 2024-12-31 17:51:16 +0900 |
| commit | 98e2fb26d1a9eafe79f46d15d54e68e014d81d8c (patch) | |
| tree | 4449ab96d75897eb150516a41f8340feff8b173a /fs/jbd2/commit.c | |
| parent | fee873761bd978d077d8c55334b4966ac4cb7b59 (diff) | |
exfat: fix the new buffer was not zeroed before writing
Before writing, if a buffer_head marked as new, its data must
be zeroed, otherwise uninitialized data in the page cache will
be written.
So this commit uses folio_zero_new_buffers() to zero the new
buffers before ->write_end().
Fixes: 6630ea49103c ("exfat: move extend valid_size into ->page_mkwrite()")
Reported-by: syzbot+91ae49e1c1a2634d20c0@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=91ae49e1c1a2634d20c0
Tested-by: syzbot+91ae49e1c1a2634d20c0@syzkaller.appspotmail.com
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Diffstat (limited to 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions