From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out203-205-221-153.mail.qq.com (out203-205-221-153.mail.qq.com [203.205.221.153]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8F46D2DAFA5 for ; Fri, 6 Feb 2026 05:50:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.205.221.153 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770357023; cv=none; b=cgg4TIlKqNmAc1i0S2+b/iQNXZwMs9lbj14eIOIfBuua6e1ZYVQ/t6rHOJ9lyK8rEq1FBc1GsgsbjuZVJd7qsglr83pOvagknA2qWrpBYBWCJKE0v+/26T6V/+qIZwmro4yDyRwhb227gg/oaQT0WT4oZYetD+Wf9uV7l5GHdIg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770357023; c=relaxed/simple; bh=mD3Is1ZfGk1OUSYZO3CgyUrd547vMHIvPMfo5D7x1Go=; h=Message-ID:From:To:Cc:Subject:Date:In-Reply-To:References: MIME-Version; b=srIixWYvPBVub5NDzoih1R2KiGdg1ZMcIUjKtLKPBYcfz3cfkO+M7lleZfFlJeVpxQoxC7EDrIJVRHbBfPYZhrUiwMKO/8IptcKZuQsti0UAD/1Nri1nAA2cch7lrn7v/z8pQLLpEwAOyY+YbMPfMi+8WFCtZaY2ZZ+037AV1HE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com; spf=pass smtp.mailfrom=qq.com; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b=TenoZWMG; arc=none smtp.client-ip=203.205.221.153 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qq.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b="TenoZWMG" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1770357013; bh=UAZK2PWRhJVVwXv3UkfmLujoWmng43K07mPOtGhINFE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=TenoZWMGS4gResF3oJSi83UYJ+KbzVbD3gXiMaCuIlfJl7SAv9mVPjRRx2no9Jer5 GWdiN4dN5ZkJuqjavp6/5AG+uxujTx0pnuZ1leELBtBg8zFzVsexkA+ENmD46EWBcy TocxtWJ65MhpFQRH+ZlUQbFv371Cf3XQNszOz02k= Received: from lxu-ped-host.. ([114.244.57.237]) by newxmesmtplogicsvrsza53-0.qq.com (NewEsmtp) with SMTP id C8B326A6; Fri, 06 Feb 2026 13:50:11 +0800 X-QQ-mid: xmsmtpt1770357011tkw5q2ykl Message-ID: X-QQ-XMAILINFO: OaZFKkmCfe/9c1p8f+Fiq0FxJ1j6dnlB9EiCK0PIG3TWkxo7kUbjA2qznF/dj/ WglZybCWI8xy7Gmxh5YNiufgMaoalgv8YTtwmj1TNjHsVUDU4ZgQjK1RRUQItrt+L75j6I8vJNDm Kd8KQpLCWt17lv08SOAZHM5AYOEFPlR1m4w48xGRIC3y1Hi28mH53TQGFVRbwPDMkSnVxuAKAp/6 Nx095Tkh+tw9gUMacQRzxgaWJ1AXuzGfH7MbGX029q2WaeVdiIrHl/S1CokzfDae+pjpp7mfaYgH KT4NOQHq4f4EsRB1yPZpLifiErxkD3FeMVILNQGlvUCCkdA0mF5tc2LR3X+89V4XYykZ5A7MoVaR TfOYQfGdcsuaz3Vqt9uD/qB3EzaoxpM3sOWiqepU54Fp+6uAa+8DfNBuxO4j3aEIyxX5GEusEAaq XzDBiYDlZiv/pMSO9gni6E5CkqMprOiQlJrLjHC8bA0yOAcGIy3zG5z7srnIfxwwxCQu8sHUDGfm HxS0Lo72COzAmY1yNMfi9Iv6sLBhqzpDAXxlT+rlVWN3OU523MpgeYh6C+6Hj+rrrCjmSKtmwlzA FgmM9AFJ/59LmUtDMem97kNsDkiYTbcT7pCj+pWgkoVHW0nPQZ3G0oCoRar4nXFXaol8pC/Ay9tM yHn6nFg/FPFKL+18F/lZLZUKbXXd73krf3t81Qysa1ZT/wwBq3A1EAV7OpOuH1AL10GMFWqIJD16 uIVEzP0Nyoyf67sFlfQGzuy9OFuUDuV9AoK5vmJ4HTkJKJ15VNnwBZ8lcVLBRPrgpbd2O8gdNPmt LLPbvstgJAF4ONHsLxwh2VmRshSLFuNWpqOp1rFfDryiCSumAuVbMiJ3UZV6dfWWZZrEBhpzCHZI iVfrDjTps1rsY9oH+NcmjbPihocTEU2L3/XKDH0danV3a0EzVj5SA2ZHt7A5o7x1kdBuFnxhnHbv 97UgMBBjY0dFc7+ljweh5E9AOBzGvCqqGOkqWPOoc= X-QQ-XMRINFO: OWPUhxQsoeAVwkVaQIEGSKwwgKCxK/fD5g== From: Edward Adam Davis 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 X-OQ-MSGID: <20260206055011.7416-2-eadavis@qq.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <698561f9.a00a0220.34fa92.0022.GAE@google.com> References: <698561f9.a00a0220.34fa92.0022.GAE@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit #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);