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| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-01-18 10:46:15 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-01-19 10:09:58 -0800 |
| commit | 6300acb2eb560496e3560ba709c4f3ea042dadbc (patch) | |
| tree | 97e07f46c23072c6c3db89c3ba05c05f03358a2d | |
| parent | 51bc860d4a997139a3f12bedb96bbf0edcf22d51 (diff) | |
| download | linux-6300acb2eb560496e3560ba709c4f3ea042dadbc.tar.bz2 | |
rtnetlink: stats: reject requests for unknown stats
In the spirit of strict checks reject requests of stats the kernel
does not support when NETLINK_F_STRICT_CHK is set.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/core/rtnetlink.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 03d0623eccae..2b4e61bcd420 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -4928,6 +4928,10 @@ static int rtnl_valid_stats_req(const struct nlmsghdr *nlh, bool strict_check, NL_SET_ERR_MSG(extack, "Invalid attributes after stats header"); return -EINVAL; } + if (ifsm->filter_mask >= IFLA_STATS_FILTER_BIT(IFLA_STATS_MAX + 1)) { + NL_SET_ERR_MSG(extack, "Invalid stats requested through filter mask"); + return -EINVAL; + } return 0; } |