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Date: Tue, 5 Oct 2021 00:34:38 -0400 From: "Martin K. Petersen" <martin.petersen@...cle.com> To: Matthew Wilcox <willy@...radead.org>, "James E.J. Bottomley" <jejb@...ux.ibm.com>, Len Baker <len.baker@....com>, Hannes Reinecke <hare@...e.com> Cc: "Martin K . Petersen" <martin.petersen@...cle.com>, linux-scsi@...r.kernel.org, "Gustavo A. R. Silva" <gustavoars@...nel.org>, linux-hardening@...r.kernel.org, Kees Cook <keescook@...omium.org>, linux-kernel@...r.kernel.org Subject: Re: [PATCH v2] scsi: advansys: Prefer struct_size over open coded arithmetic On Sat, 25 Sep 2021 13:42:05 +0200, Len Baker wrote: > As noted in the "Deprecated Interfaces, Language Features, Attributes, > and Conventions" documentation [1], size calculations (especially > multiplication) should not be performed in memory allocator (or similar) > function arguments due to the risk of them overflowing. This could lead > to values wrapping around and a smaller allocation being made than the > caller was expecting. Using those allocations could lead to linear > overflows of heap memory and other misbehaviors. > > [...] Applied to 5.16/scsi-queue, thanks! [1/1] scsi: advansys: Prefer struct_size over open coded arithmetic https://git.kernel.org/mkp/scsi/c/568778f5572a -- Martin K. Petersen Oracle Linux Engineering
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