linux-kernel - Re: [syzbot] [reiserfs?] KASAN: slab-out-of-bounds Read in search_by

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Message-ID: <tencent_58740777F766DE3C91376296D4363A4A8A09@qq.com>
Date: Tue, 26 Dec 2023 08:11:46 +0800
From: Edward Adam Davis <eadavis@...com>
To: syzbot+b3b14fb9f8a14c5d0267@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [reiserfs?] KASAN: slab-out-of-bounds Read in search_by_key (2)

please test slab-out-of-bounds Read in search_by_key

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 861deac3b092

diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index 2138ee7d271d..5faf702f8d15 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -1407,7 +1407,7 @@ void reiserfs_delete_solid_item(struct reiserfs_transaction_handle *th,
 	INITIALIZE_PATH(path);
 	int item_len = 0;
 	int tb_init = 0;
-	struct cpu_key cpu_key;
+	struct cpu_key cpu_key = {};
 	int retval;
 	int quota_cut_bytes = 0;