Messages in this thread Patch in this message | | | Subject | [PATCH 2.6.22.3] ppp: fix output buffer size in ppp_decompress_frame | From | Konstantin Sharlaimov <> | Date | Fri, 17 Aug 2007 20:45:51 +1100 |
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This patch addresses the issue with "osize too small" errors in mppe encryption. The patch fixes the issue with wrong output buffer size being passed to ppp decompression routine.
Signed-off-by: Konstantin Sharlaimov <konstantin.sharlaimov@gmail.com> --- As pointed out by Suresh Mahalingam, the issue addressed by ppp-fix-osize-too-small-errors-when-decoding patch is not fully resolved yet. The size of allocated output buffer is correct, however it size passed to ppp->rcomp->decompress in ppp_generic.c if wrong. The patch fixes that.
--- linux-2.6.21.3/drivers/net/ppp_generic.c.orig 2007-08-17 20:35:03.000000000 +1100 +++ linux-2.6.21.3/drivers/net/ppp_generic.c 2007-08-17 20:35:45.000000000 +1100 @@ -1726,7 +1726,7 @@ ppp_decompress_frame(struct ppp *ppp, st } /* the decompressor still expects the A/C bytes in the hdr */ len = ppp->rcomp->decompress(ppp->rc_state, skb->data - 2, - skb->len + 2, ns->data, ppp->mru + PPP_HDRLEN); + skb->len + 2, ns->data, obuff_size); if (len < 0) { /* Pass the compressed frame to pppd as an error indication. */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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