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From: Edward Adam Davis <eadavis@qq.com>
To: syzbot+7c31755f2cea07838b0c@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [fuse?] KMSAN: uninit-value in fuse_fileattr_get
Date: Fri,  6 Feb 2026 13:50:12 +0800	[thread overview]
Message-ID: <tencent_19BAECA6CF80794E6FEC2D456D88972CE80A@qq.com> (raw)
In-Reply-To: <698561f9.a00a0220.34fa92.0022.GAE@google.com>

#syz test

diff --git a/fs/file_attr.c b/fs/file_attr.c
index 13cdb31a3e94..4889cf59b256 100644
--- a/fs/file_attr.c
+++ b/fs/file_attr.c
@@ -377,7 +377,7 @@ SYSCALL_DEFINE5(file_getattr, int, dfd, const char __user *, filename,
 	struct filename *name __free(putname) = NULL;
 	unsigned int lookup_flags = 0;
 	struct file_attr fattr;
-	struct file_kattr fa;
+	struct file_kattr fa = { .flags_valid = true }; /* hint only */
 	int error;
 
 	BUILD_BUG_ON(sizeof(struct file_attr) < FILE_ATTR_SIZE_VER0);


  parent reply	other threads:[~2026-02-06  5:50 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-06  3:37 syzbot
2026-02-06  3:46 ` Qing Wang
2026-02-06  4:16   ` syzbot
2026-02-06  5:50 ` Edward Adam Davis [this message]
2026-02-06  6:20   ` syzbot
2026-02-06  6:00 ` Qing Wang
2026-02-06  6:53   ` syzbot
2026-02-06  6:20 ` [PATCH] fs: init flags_valid before calling vfs_fileattr_get Edward Adam Davis

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