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-rw-r--r--fs/bcachefs/dirent.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/bcachefs/dirent.c b/fs/bcachefs/dirent.c
index 6bbf9a7d9e4d..c67460d8205d 100644
--- a/fs/bcachefs/dirent.c
+++ b/fs/bcachefs/dirent.c
@@ -15,6 +15,9 @@
static unsigned bch2_dirent_name_bytes(struct bkey_s_c_dirent d)
{
+ if (bkey_val_bytes(d.k) < offsetof(struct bch_dirent, d_name))
+ return 0;
+
unsigned bkey_u64s = bkey_val_u64s(d.k);
unsigned bkey_bytes = bkey_u64s * sizeof(u64);
u64 last_u64 = ((u64*)d.v)[bkey_u64s - 1];