From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Fri, 12 Apr 2024 01:20:27 +0000 (-0400)
Subject: bcachefs: fix unsafety in bch2_extent_ptr_to_text()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=dc32c118ec6b1032693c489a0aa9e011f0acdb1a;p=linux.git

bcachefs: fix unsafety in bch2_extent_ptr_to_text()

Need to check if we have a valid bucket before checking if ptr is stale

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---

diff --git a/fs/bcachefs/extents.c b/fs/bcachefs/extents.c
index 0e3ca99fbd2de..36d12d2adb81e 100644
--- a/fs/bcachefs/extents.c
+++ b/fs/bcachefs/extents.c
@@ -998,7 +998,9 @@ void bch2_extent_ptr_to_text(struct printbuf *out, struct bch_fs *c, const struc
 			prt_str(out, " cached");
 		if (ptr->unwritten)
 			prt_str(out, " unwritten");
-		if (ca && ptr_stale(ca, ptr))
+		if (b >= ca->mi.first_bucket &&
+		    b <  ca->mi.nbuckets &&
+		    ptr_stale(ca, ptr))
 			prt_printf(out, " stale");
 	}
 }