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Date: Mon, 24 Jul 2006 17:12:13 -0700 From: Stephen Hemminger <shemminger@...l.org> To: Daniel Drake <dsd@...too.org> Cc: Tom Walter Dillig <tdillig@...nford.edu>, linux-kernel@...r.kernel.org, w@....eul, kernel_org@...italpeer.com, security@...nel.org, Netdev list <netdev@...r.kernel.org> Subject: Re: softmac possible null deref [was: Complete report of Null dereference errors in kernel 2.6.17.1] On Tue, 25 Jul 2006 01:00:54 +0100 Daniel Drake <dsd@...too.org> wrote: > Tom Walter Dillig wrote: > > [109] > > 452 net/ieee80211/softmac/ieee80211softmac_io.c > > Possible null dereference of variable "*pkt" in function call > > (include/asm/string.h:__constant_c_and_count_memset) checked at > > (453:net/ieee80211/softmac/ieee80211softmac_io.c) > > Either I'm misunderstanding, or this is bogus. > > when *pkt is allocated by the various child functions (e.g. > ieee80211softmac_disassoc_deauth), it is always checked for NULL. > > Finally, line 453 does another NULL check. > > What is the report trying to say? That the check in 453 should be removed because is unneeded. People who obsess about code coverage care that there are unneded checks. I don't think it matters. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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