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R. Silva" In-Reply-To: <20230922175245.work.196-kees@kernel.org> X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - lists.infradead.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 94.239.20.48 X-Source-L: No X-Exim-ID: 1qjy6h-003f5P-0P X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: ([192.168.1.98]) [94.239.20.48]:36680 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 0 X-Org: HG=hgshared;ORG=hostgator; X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes X-CMAE-Envelope: MS4xfJyZQFMVmwUYJO6Ctv7lnc9+9zX2fBbl+TunI4oWCwwYMsZorw2gK8dZhCyNgtheTQgmfy+ixn3uyeo/84nNtLsLeNtjmAewFolecRyZMSH2VEVErKsp BqJG5jSY0ikQe5i7eNxJCYq6EtpYfo/7SeRxZfFKDZ4Fjo2rsypvqilWx9ZgwOfpiu1mQJtZUhWyRlQi04E9r6B7lVAx4j2xwIn5eWEDLd/oEXeuzQhqDm9p X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230923_024142_501370_EE1315BC X-CRM114-Status: GOOD ( 13.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 9/22/23 11:52, Kees Cook wrote: > Prepare for the coming implementation by GCC and Clang of the __counted_by > attribute. Flexible array members annotated with __counted_by can have > their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS > (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family > functions). > > As found with Coccinelle[1], add __counted_by for struct mxser_board. > > [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci > > Cc: Jiri Slaby > Cc: Greg Kroah-Hartman > Cc: Shawn Guo > Cc: Sascha Hauer > Cc: Pengutronix Kernel Team > Cc: Fabio Estevam > Cc: NXP Linux Team > Cc: linux-serial@vger.kernel.org > Cc: linux-arm-kernel@lists.infradead.org > Signed-off-by: Kees Cook Reviewed-by: Gustavo A. R. Silva Thanks -- Gustavo > --- > drivers/tty/mxser.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c > index 10aa4ed38793..6ce7f259968f 100644 > --- a/drivers/tty/mxser.c > +++ b/drivers/tty/mxser.c > @@ -288,7 +288,7 @@ struct mxser_board { > enum mxser_must_hwid must_hwid; > speed_t max_baud; > > - struct mxser_port ports[]; > + struct mxser_port ports[] __counted_by(nports); > }; > > static DECLARE_BITMAP(mxser_boards, MXSER_BOARDS); _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel