linux-kernel - Re: [PATCH 0/2] cifs: fix integer overflow in match

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Message-ID: <CAH2r5mtkVvPyT0qvZbNwwKSmsXtryStiE6bGGn_mK=E3V_waEw@mail.gmail.com>
Date: Mon, 31 Mar 2025 17:48:52 -0500
From: Steve French <smfrench@...il.com>
To: Roman Smirnov <r.smirnov@....ru>
Cc: Steve French <sfrench@...ba.org>, Paulo Alcantara <pc@...guebit.com>, 
	Ronnie Sahlberg <ronniesahlberg@...il.com>, Shyam Prasad N <sprasad@...rosoft.com>, 
	Tom Talpey <tom@...pey.com>, Bharath SM <bharathsm@...rosoft.com>, 
	Sachin Prabhu <sprabhu@...hat.com>, Shirish Pargaonkar <shirishpargaonkar@...il.com>, 
	linux-cifs@...r.kernel.org, samba-technical@...ts.samba.org, 
	linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org
Subject: Re: [PATCH 0/2] cifs: fix integer overflow in match_server()

Merged into cifs-2.6.git for-next

On Mon, Mar 31, 2025 at 3:23 AM Roman Smirnov <r.smirnov@....ru> wrote:
>
> If a large number is written to echo_interval during mount,
> an integer overflow may occur in match_server():
>
> smb3_fs_context_parse_param()
>
> cifs_smb3_do_mount()
>   sget()
>     cifs_match_super()
>       match_server()
>
> Found by Linux Verification Center (linuxtesting.org) with Svace.
>
> Roman Smirnov (2):
>   cifs: fix integer overflow in match_server()
>   cifs: remove unreachable code in cifs_get_tcp_session()
>
>  fs/smb/client/connect.c    | 6 +-----
>  fs/smb/client/fs_context.c | 5 +++++
>  2 files changed, 6 insertions(+), 5 deletions(-)
>
> --
> 2.34.1
>
>


-- 
Thanks,

Steve