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SubjectRe: [CHECKER] 9 potential copy_*_user bugs in 2.4.1
Dawson Engler writes:
> ---------------------------------------------------------
> [UNKNOWN] I'm not sure about this: "csum_partial_*" calls the generic
> cksum routine which does guard against user pointers ---
> is this redundant paranoia in this case?
>
> /u2/engler/mc/oses/linux/2.4.1/net/ipv4/tcp_output.c:643:tcp_retrans_try_collapse: ERROR:PARAM:651:643: tainted var 'skb_put' (from line 651) used as arg 0 to '__constant_memcpy'

csum_partial_copy_nocheck works on kernel pointers.

Later,
David S. Miller
davem@redhat.com
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