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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2025-04-02 12:48:23 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2025-04-03 12:11:43 -0400 |
| commit | 39ebd74864f5c4f7d44f1fe026c71a270631186b (patch) | |
| tree | a63472ea0eef21e50c58773e9f52dfe5b0c8bb8d /fs | |
| parent | 83d539b1b04705f972b53b4669fb587c54def0db (diff) | |
| download | linux-39ebd74864f5c4f7d44f1fe026c71a270631186b.tar.gz linux-39ebd74864f5c4f7d44f1fe026c71a270631186b.tar.bz2 linux-39ebd74864f5c4f7d44f1fe026c71a270631186b.zip | |
bcachefs: Fix null ptr deref in invalidate_one_bucket()
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/bcachefs/alloc_background.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/bcachefs/alloc_background.c b/fs/bcachefs/alloc_background.c index 6b6c2521c11f..94ea9e49aec4 100644 --- a/fs/bcachefs/alloc_background.c +++ b/fs/bcachefs/alloc_background.c @@ -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); |