Program received signal SIGSEGV, Segmentation fault. mnl_socket_close (nl=0x0) at socket.c:248 248 int ret = close(nl->fd); (gdb) bt #0 mnl_socket_close (nl=0x0) at socket.c:248 #1 0x0000000000410f79 in netlink_close_sock () at src/netlink.c:45 #2 0x00007ffff7de9fcf in _dl_fini () at dl-fini.c:253 #3 0x00007ffff717fa91 in __run_exit_handlers (status=2, listp=0x7ffff74ec5c8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:77 #4 0x00007ffff717fb15 in __GI_exit (status=<optimized out>) at exit.c:99 #5 0x0000000000419b60 in memory_allocation_error () at src/utils.c:24 #6 0x0000000000410f3a in netlink_open_sock () at src/netlink.c:37 #7 0x00000000004291cd in __libc_csu_init () #8 0x00007ffff7167925 in __libc_start_main (main=0x405219 <main>, argc=1, ubp_av=0x7fffffffe738, init=0x429170 <__libc_csu_init>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe728) at libc-start.c:235 #9 0x0000000000404d49 in _start () Signed-off-by: Shawn Landden <shawn@xxxxxxxxxxxxxxx> --- src/netlink.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/src/netlink.c b/src/netlink.c index 533634a..5b2961e 100644 --- a/src/netlink.c +++ b/src/netlink.c @@ -33,8 +33,14 @@ static struct mnl_socket *nf_sock; static void __init netlink_open_sock(void) { nf_sock = mnl_socket_open(NETLINK_NETFILTER); - if (nf_sock == NULL) - memory_allocation_error(); + if (nf_sock == NULL) { + fprintf(fdopen(STDERR_FILENO, "a"), + "Could not open AF_NETLINK socket: %s\n", + strerror(errno)); + /* the __exit netlink_close_sock() will dereference nf_sock + if we exit() */ + _exit(EFT_EXIT_NOMEM); + } fcntl(mnl_socket_get_fd(nf_sock), F_SETFL, O_NONBLOCK); mnl_batch_init(); -- 1.8.5.1 -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html