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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.

    David S. Miller
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