linux-kernel - Re: [syzbot] [bcachefs?] kernel BUG in vfs_get

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Message-ID: <tencent_32A5A08D89123A5DB6DD8A19514F8B8DD107@qq.com>
Date: Wed, 25 Sep 2024 08:23:39 +0800
From: Edward Adam Davis <eadavis@...com>
To: syzbot+c0360e8367d6d8d04a66@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bcachefs?] kernel BUG in vfs_get_tree

Add EPERM support

#syz test

diff --git a/fs/bcachefs/errcode.h b/fs/bcachefs/errcode.h
index 60b7875adada..4119ef5e1fa1 100644
--- a/fs/bcachefs/errcode.h
+++ b/fs/bcachefs/errcode.h
@@ -102,6 +102,7 @@
 	x(ENOSPC,			ENOSPC_sb_downgrade)			\
 	x(ENOSPC,			ENOSPC_btree_slot)			\
 	x(ENOSPC,			ENOSPC_snapshot_tree)			\
+	x(EPERM,			EPERM_fc_root)				\
 	x(ENOENT,			ENOENT_bkey_type_mismatch)		\
 	x(ENOENT,			ENOENT_str_hash_lookup)			\
 	x(ENOENT,			ENOENT_str_hash_set_must_replace)	\