On Wed, May 02, 2018 at 01:41:36PM +0100, Dmitry Safonov wrote: > > But still it's possible to create ipsec with zero SPI. > And it seems not making sense to search for a state with SPI hash if > request has zero SPI.
Fair enough. In fact a zero SPI is legal and defined for IPcomp. The bug arose from this patch: commit 7b4dc3600e4877178ba94c7fbf7e520421378aa6 Author: Masahide NAKAMURA <na...@linux-ipv6.org> Date: Wed Sep 27 22:21:52 2006 -0700 [XFRM]: Do not add a state whose SPI is zero to the SPI hash. SPI=0 is used for acquired IPsec SA and MIPv6 RO state. Such state should not be added to the SPI hash because we do not care about it on deleting path. Signed-off-by: Masahide NAKAMURA <na...@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshf...@linux-ipv6.org> I think it would be better to revert this. Cheers, -- Email: Herbert Xu <herb...@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt