Assert that the mbuf in the chain has sane length. Proper place for
this check is somewhere in the network code, but this assertion already proven to be useful in catching what seems to be driver bugs causing NFS scrambling random memory. Discussed with: rmacklem MFC after: 1 week
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=246213
@ -218,6 +218,7 @@ nfsm_mbufuio(struct nfsrv_descript *nd, struct uio *uiop, int siz)
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}
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mbufcp = NFSMTOD(mp, caddr_t);
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len = mbuf_len(mp);
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KASSERT(len > 0, ("len %d", len));
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}
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xfer = (left > len) ? len : left;
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#ifdef notdef
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