linux-kernel - Re: [PATCH] scsi: libfc: Fix potential buffer overflow in fc_ct_ms

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Message-ID: <yq1tt0rqooy.fsf@ca-mkp.ca.oracle.com>
Date: Wed, 24 Sep 2025 21:57:39 -0400
From: "Martin K. Petersen" <martin.petersen@...cle.com>
To: Alok Tiwari <alok.a.tiwari@...cle.com>
Cc: martin.petersen@...cle.com, hare@...e.de,
        James.Bottomley@...senPartnership.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scsi: libfc: Fix potential buffer overflow in
 fc_ct_ms_fill()


Alok,

> The fc_ct_ms_fill() helper currently formats the OS name and version
> into entry->value using "%s v%s". Since init_utsname()->sysname and
> ->release are unbounded strings, snprintf() may attempt to write more
> than FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN bytes, triggering a
> -Wformat-truncation warning with W=1.

Applied to 6.18/scsi-staging, thanks!

-- 
Martin K. Petersen