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| author | Jakub Kicinski <kuba@kernel.org> | 2021-01-07 18:47:21 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-01-07 18:47:21 -0800 |
| commit | d7083427489a494cfef552321666774436514ccb (patch) | |
| tree | 01269ace975a9c004a87518158f46f7075239ed3 | |
| parent | ac7996d680d8b4a51bb99bbdcee3dc838b985498 (diff) | |
| parent | a5c9ca76a1c61fb5e4c35de8eb25aa925b03c9e4 (diff) | |
| download | linux-d7083427489a494cfef552321666774436514ccb.tar.bz2 | |
Merge branch 'nexthop-various-fixes'
Ido Schimmel says:
====================
nexthop: Various fixes
This series contains various fixes for the nexthop code. The bugs were
uncovered during the development of resilient nexthop groups.
Patches #1-#2 fix the error path of nexthop_create_group(). I was not
able to trigger these bugs with current code, but it is possible with
the upcoming resilient nexthop groups code which adds a user
controllable memory allocation further in the function.
Patch #3 fixes wrong validation of netlink attributes.
Patch #4 fixes wrong invocation of mausezahn in a selftest.
====================
Link: https://lore.kernel.org/r/20210107144824.1135691-1-idosch@idosch.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/ipv4/nexthop.c | 6 | ||||
| -rwxr-xr-x | tools/testing/selftests/net/fib_nexthops.sh | 2 |
2 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index 5e1b22d4f939..e53e43aef785 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -627,7 +627,7 @@ static int nh_check_attr_group(struct net *net, struct nlattr *tb[], for (i = NHA_GROUP_TYPE + 1; i < __NHA_MAX; ++i) { if (!tb[i]) continue; - if (tb[NHA_FDB]) + if (i == NHA_FDB) continue; NL_SET_ERR_MSG(extack, "No other attributes can be set in nexthop groups"); @@ -1459,8 +1459,10 @@ static struct nexthop *nexthop_create_group(struct net *net, return nh; out_no_nh: - for (; i >= 0; --i) + for (i--; i >= 0; --i) { + list_del(&nhg->nh_entries[i].nh_list); nexthop_put(nhg->nh_entries[i].nh); + } kfree(nhg->spare); kfree(nhg); diff --git a/tools/testing/selftests/net/fib_nexthops.sh b/tools/testing/selftests/net/fib_nexthops.sh index eb693a3b7b4a..4c7d33618437 100755 --- a/tools/testing/selftests/net/fib_nexthops.sh +++ b/tools/testing/selftests/net/fib_nexthops.sh @@ -869,7 +869,7 @@ ipv6_torture() pid3=$! ip netns exec me ping -f 2001:db8:101::2 >/dev/null 2>&1 & pid4=$! - ip netns exec me mausezahn veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 & + ip netns exec me mausezahn -6 veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 & pid5=$! sleep 300 |