diff options
| author | Piotr Zalewski <pZ010001011111@proton.me> | 2024-10-27 19:46:52 +0000 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-10-29 06:34:11 -0400 |
| commit | 3726a1970bd72419aa7a54f574635f855b98d67a (patch) | |
| tree | cd6798bd555a378e31a13f0a844dc0b31848a4d8 /fs/xfs/xfs_bmap_util.c | |
| parent | ca959e328b2243687aa0b95de01414d13e4f3ade (diff) | |
bcachefs: Fix NULL ptr dereference in btree_node_iter_and_journal_peek
Add NULL check for key returned from bch2_btree_and_journal_iter_peek in
btree_node_iter_and_journal_peek to avoid NULL ptr dereference in
bch2_bkey_buf_reassemble.
When key returned from bch2_btree_and_journal_iter_peek is NULL it means
that btree topology needs repair. Print topology error message with
position at which node wasn't found, its parent node information and
btree_id with level.
Return error code returned by bch2_topology_error to ensure that topology
error is handled properly by recovery.
Reported-by: syzbot+005ef9aa519f30d97657@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=005ef9aa519f30d97657
Fixes: 5222a4607cd8 ("bcachefs: BTREE_ITER_WITH_JOURNAL")
Suggested-by: Alan Huang <mmpgouride@gmail.com>
Suggested-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Piotr Zalewski <pZ010001011111@proton.me>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/xfs/xfs_bmap_util.c')
0 files changed, 0 insertions, 0 deletions