netdev - Re: [PATCH net 0/2] vsock: null-ptr-deref when SO

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20250224161404-mutt-send-email-mst@kernel.org>
Date: Mon, 24 Feb 2025 16:14:13 -0500
From: "Michael S. Tsirkin" <mst@...hat.com>
To: Michal Luczaj <mhal@...x.co>
Cc: Stefano Garzarella <sgarzare@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>, netdev@...r.kernel.org,
	syzbot+9d55b199192a4be7d02c@...kaller.appspotmail.com
Subject: Re: [PATCH net 0/2] vsock: null-ptr-deref when SO_LINGER enabled

On Tue, Feb 04, 2025 at 01:29:51AM +0100, Michal Luczaj wrote:
> syzbot pointed out that a recent patching of a use-after-free introduced a
> null-ptr-deref. This series fixes the problem and adds a test.
> 
> Fixes fcdd2242c023 ("vsock: Keep the binding until socket destruction").
> 
> Signed-off-by: Michal Luczaj <mhal@...x.co>


Acked-by: Michael S. Tsirkin <mst@...hat.com>


> ---
> Michal Luczaj (2):
>       vsock: Orphan socket after transport release
>       vsock/test: Add test for SO_LINGER null ptr deref
> 
>  net/vmw_vsock/af_vsock.c         |  3 ++-
>  tools/testing/vsock/vsock_test.c | 41 ++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 43 insertions(+), 1 deletion(-)
> ---
> base-commit: 0e6dc66b5c5fa186a9f96c66421af74212ebcf66
> change-id: 20250203-vsock-linger-nullderef-cbe4402ad306
> 
> Best regards,
> -- 
> Michal Luczaj <mhal@...x.co>
>