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The relevant code has been changed (and implicitly fixed) by the following upstream commit:
commit 23c2ef2f9812a04c3bd8248de70cad37a176550a
Author: Pablo Neira Ayuso <pablo>
Date: Fri Jun 10 14:34:10 2016 +0200
chain: dynamically allocate name
Just in case we ever support chain with larger names in the future,
this will ensure the library doesn't break. Although I don't expect
allocating more bytes for this anytime soon, but let's be conservative
here.
Signed-off-by: Pablo Neira Ayuso <pablo>
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2017:2007
As reported by coverity tool: 4. libnftnl-1.0.6/src/chain.c:533: buffer_size_warning: Calling strncpy with a maximum size argument of 32 bytes on destination array "c->name" of size 32 bytes might leave the destination string unterminated. # 531| # 532| if (tb[NFTA_CHAIN_NAME]) { # 533|-> strncpy(c->name, mnl_attr_get_str(tb[NFTA_CHAIN_NAME]), # 534| NFT_CHAIN_MAXNAMELEN); # 535| c->flags |= (1 << NFTNL_CHAIN_NAME); 8. libnftnl-1.0.6/src/chain.c:178: buffer_size_warning: Calling strncpy with a maximum size argument of 32 bytes on destination array "c->name" of size 32 bytes might leave the destination string unterminated. # 176| switch(attr) { # 177| case NFTNL_CHAIN_NAME: # 178|-> strncpy(c->name, data, NFT_CHAIN_MAXNAMELEN); # 179| break; # 180| case NFTNL_CHAIN_TABLE: