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Date: Tue, 22 Mar 2011 12:55:29 +0100 From: David Sterba <dsterba@...e.cz> To: netdev@...r.kernel.org Cc: linux-kernel@...r.kernel.org, David Sterba <dsterba@...e.cz>, David Miller <davem@...emloft.net>, stable@...nel.org Subject: [PATCH] netfilter: h323: bug in parsing of ASN1 SEQOF field Static analyzer of clang found a dead store which appears to be a bug in reading count of items in SEQOF field, only the lower byte of word is stored. This may lead to corrupted read and communication shutdown. The bug has been in the module since it's first inclusion into linux kernel. Signed-off-by: David Sterba <dsterba@...e.cz> CC: David Miller <davem@...emloft.net> CC: netdev@...r.kernel.org CC: stable@...nel.org --- net/netfilter/nf_conntrack_h323_asn1.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/net/netfilter/nf_conntrack_h323_asn1.c b/net/netfilter/nf_conntrack_h323_asn1.c index 8678823..bcd5ed6 100644 --- a/net/netfilter/nf_conntrack_h323_asn1.c +++ b/net/netfilter/nf_conntrack_h323_asn1.c @@ -631,7 +631,7 @@ static int decode_seqof(bitstr_t *bs, const struct field_t *f, CHECK_BOUND(bs, 2); count = *bs->cur++; count <<= 8; - count = *bs->cur++; + count += *bs->cur++; break; case SEMI: BYTE_ALIGN(bs); -- 1.7.4.1.176.g501cc -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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