linux-hardening - Re: [PATCH v2][next] scsi: lpfc: Avoid -Wstringop-overflow warning

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:   Wed, 14 Jun 2023 22:16:20 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     James Smart <james.smart@...adcom.com>,
        Dick Kennedy <dick.kennedy@...adcom.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Kees Cook <keescook@...omium.org>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc:     "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2][next] scsi: lpfc: Avoid -Wstringop-overflow warning

On Thu, 01 Jun 2023 17:40:41 -0600, Gustavo A. R. Silva wrote:

> Prevent any potential integer wrapping issue, and avoid a
> -Wstringop-overflow warning by using the check_mul_overflow() helper.
> 
> drivers/scsi/lpfc/lpfc.h:
> 837:#define LPFC_RAS_MIN_BUFF_POST_SIZE (256 * 1024)
> 
> drivers/scsi/lpfc/lpfc_debugfs.c:
> 2266 size = LPFC_RAS_MIN_BUFF_POST_SIZE * phba->cfg_ras_fwlog_buffsize;
> 
> [...]

Applied to 6.5/scsi-queue, thanks!

[1/1] scsi: lpfc: Avoid -Wstringop-overflow warning
      https://git.kernel.org/mkp/scsi/c/a48e2c328c65

-- 
Martin K. Petersen	Oracle Linux Engineering