linux-kernel - Re: [syzbot] [fs?] general protection fault in fd

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Message-ID: <tencent_03C97BA3A324487766D76AA6C0B369036005@qq.com>
Date: Thu,  4 Dec 2025 20:06:24 +0800
From: Edward Adam Davis <eadavis@...com>
To: syzbot+40f42779048f7476e2e0@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [fs?] general protection fault in fd_install

#syz test

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 56e811f9e5fa..1fad74c5d348 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -877,7 +877,7 @@ static int prepare_open(struct dentry *dentry, int oflag, int ro,
 		if (!(oflag & O_CREAT))
 			return -ENOENT;
 		if (ro)
-			return ro;
+			return -EROFS;
 		audit_inode_parent_hidden(name, dentry->d_parent);
 		return vfs_mkobj(dentry, mode & ~current_umask(),
 				  mqueue_create_attr, attr);