diff options
| author | Alan Huang <mmpgouride@gmail.com> | 2025-03-08 00:58:27 +0800 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2025-03-11 09:19:23 -0400 |
| commit | 3a04334d6282d08fbdd6201e374db17d31927ba3 (patch) | |
| tree | 3037c5bd62d6b264d98289503e4f8e75366d491c | |
| parent | 80e54e84911a923c40d7bee33a34c1b4be148d7a (diff) | |
bcachefs: Fix b->written overflow
When bset past end of btree node, we should not add sectors to
b->written, which will overflow b->written.
Reported-by: syzbot+3cb3d9e8c3f197754825@syzkaller.appspotmail.com
Tested-by: syzbot+3cb3d9e8c3f197754825@syzkaller.appspotmail.com
Signed-off-by: Alan Huang <mmpgouride@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | fs/bcachefs/btree_io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/bcachefs/btree_io.c b/fs/bcachefs/btree_io.c index dece27d9db04..756736f9243d 100644 --- a/fs/bcachefs/btree_io.c +++ b/fs/bcachefs/btree_io.c @@ -1186,7 +1186,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca, le64_to_cpu(i->journal_seq), b->written, b->written + sectors, ptr_written); - b->written += sectors; + b->written = min(b->written + sectors, btree_sectors(c)); if (blacklisted && !first) continue; |