From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793717278; b=aXZUcDxyjpHxF9CEDCXgbjtuAkwuX+y9YHGPTSzWrOhRIQZRQn5WDmh2bjwKGsQAdwVf /2yQFwtuZKRyKPeke7ZNl7V00j2uDRdAjCNPRtCtKH2KeakSKPS4HWqWKPOE50yqMAAG5 HQ5MOrPrBrQwVtCBg4OnJGC86l5pkaw2rXe9+0Ixgz2SrXjIsRhq1mG4kPmE9NsC4no3o 8Vdj9piI6Q47jUr9K9Dtt0dtHFPkYehjpU2XtAmGJdnXVFlr5KED+w1mKczJ3SDU97zcB REMGVhpG465bz6qDYxH6dq53rlaLJe8DEJOZ8vexbpw318YJ1v3mM5E4LtAVNJxI/Lg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793717278; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=QRmT1dursV1/AbPfdQawgpWX1OE+hs1OgQGe5g88v1g=; b=e0s+a4TvnYATAsD/FiCS/zJKJY/3qaQZaZcp93Y/Evp9IPID4FWYQTrPRuIy9yhhOWCT uIM2wsdbrGlep+igNFUtRMOs+DEcr9T8VoyoIclb6dHAkWAOVJPCjeNTYun5k42b9Xl0b +60qrXKMSwZQIl1PfI3z58WweyvYxRMJQ2rQjsE+dunWptf0PJ8EaOOSP1oSyTWfnGQbR WuQl/cldi/bwfqsPpSvtAKbTRd2UOKFbp2vdpeNpsGUVTkqC5SAOIoL8j2O4hydU/9YR0 /yHWBubaBWPaeDXDTNJhN1U80kHdu/aYP6wx7hXi07MKLMyvFhuS2JdSeFTsLstBrMg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=HcJ+JRqm; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EDF0E606D832; Tue, 3 Nov 2026 14:47:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=HcJ+JRqm Received: by smtp.kernel.org (Postfix) with ESMTPSA id 27D401F00A02; Tue, 3 Nov 2026 14:47:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793717277; bh=QRmT1dursV1/AbPfdQawgpWX1OE+hs1OgQGe5g88v1g=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=HcJ+JRqmYEiMrWdia1VF/h68+hME8LTqCzLLleewidrGGkT23nLAVx72jBXXGRnJH deW5WlbJslcCL70kgQE/USZ9Pn2koDB3lf5HMQ+VPVhK2NhZBxXINU1jpYDX7AyCsb zx7C3NFyw/w3WUfgqJDpNiOEzMi7KG9GL3w92NOCLX5CEQpNgp8ax9OyQnfnVIOmqd 91xXbQvhxesjbGUDIpGvSg5XYWfnpqWG13blZJqrRvr8fqcc4OOCQ4glPo9tDaoFWV HSEf1t6mQ2mTtiA0x+I9dkOFdgeDd9SF/dvfLBNHVQRjp06VJHYOEXnI2KvV4mwZi0 9BjYRzDu4BVvQ== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH RFC 15/38] ntfs3: don't warn when a huge label is written Reply-To: sashiko-reviews@lists.linux.dev To: "Christian Brauner" Cc: "Linus Torvalds" , "Jann Horn" , "Josef Bacik" , "Chris Mason" , "Jeff Layton" , NeilBrown , "Eric Dumazet" , "Thomas Gleixner" , "Al Viro" , "Jonathan Corbet" , "Christoph Hellwig" , "Greg Kroah-Hartman" , "Joel Granados" , "Kees Cook" , "Jan Kara" , "Jan Kara" , linux-s390@vger.kernel.org, coreteam@netfilter.org, kexec@lists.infradead.org, linux-pci@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-usb@vger.kernel.org, samba-technical@lists.samba.org, linux-m68k@lists.linux-m68k.org, linux-serial@vger.kernel.org, "Takashi Iwai" , linux-ext4@vger.kernel.org, "Chuck Lever" , tytso@mit.edu, "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20261102-work-procfs-bugfixes-v1-15-59422ed3e465@kernel.org> References: <20261102-work-procfs-bugfixes-v1-0-59422ed3e465@kernel.org> <20261102-work-procfs-bugfixes-v1-15-59422ed3e465@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 03 Nov 2026 14:47:55 +0000 X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > ntfs3_label_write() allocates as many bytes as are written with plain > kmalloc(). A write that is larger than what kmalloc() can hand out then > trips the page allocator's warning, which panics a panic_on_warn kernel. > Use memdup_user(), which fails such an allocation quietly with -ENOMEM > like before. >=20 > Fixes: 7832e123490a ("fs/ntfs3: Add support /proc/fs/ntfs3//volinfo = and /proc/fs/ntfs3//label") > Cc: stable@vger.kernel.org > Signed-off-by: Christian Brauner (Amutable) Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261102-work-procf= s-bugfixes-v1-0-59422ed3e465@kernel.org?part=3D15