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authorJ. Bruce Fields <bfields@citi.umich.edu>2008-01-22 17:40:42 -0500
committerJ. Bruce Fields <bfields@citi.umich.edu>2008-02-01 16:42:15 -0500
commit87d26ea7771ad637035e6bd5a2700d81ee9162da (patch)
treec1da6cd6fe03bfadb3276bd30423c7d4b105ef41 /net/sunrpc
parent50431d94e732ba71b66a83c5435890728e313095 (diff)
nfsd: more careful input validation in nfsctl write methods
Neil Brown points out that we're checking buf[size-1] in a couple places without first checking whether size is zero. Actually, given the implementation of simple_transaction_get(), buf[-1] is zero, so in both of these cases the subsequent check of the value of buf[size-1] will catch this case. But it seems fragile to depend on that, so add explicit checks for this case. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Acked-by: NeilBrown <neilb@suse.de>
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