github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-26 16:12:59 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

bcachefs: Fix null ptr deref in invalidate_one_bucket()

Browse Source 
bch2_backpointer_get_key() returns bkey_s_c_null when the target isn't
found.

backpointer_get_key() flags the error, so there's nothing else to do
here - just skip it and move on.

Link: https://github.com/koverstreet/bcachefs/issues/847
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2025-04-02 12:48:23 -04:00
parent 83d539b1b0
commit 39ebd74864
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/bcachefs/alloc_background.c
View File

@ -2084,6 +2084,9 @@ static int invalidate_one_bp(struct btree_trans *trans,
if (ret)
return ret;
if (!extent_k.k)
return 0;
struct bkey_i *n =
bch2_bkey_make_mut(trans, &extent_iter, &extent_k,
BTREE_UPDATE_internal_snapshot_node);