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authorJakub Kicinski <kuba@kernel.org>2020-03-02 21:05:12 -0800
committerDavid S. Miller <davem@davemloft.net>2020-03-03 13:28:48 -0800
commitff3b63b8c299b73ac599b120653b47e275407656 (patch)
treee71ad398f27acf146bb2662be545beed64628fa8 /net
parentdevlink: validate length of param values (diff)
downloadlinux-dev-ff3b63b8c299b73ac599b120653b47e275407656.tar.xz
linux-dev-ff3b63b8c299b73ac599b120653b47e275407656.zip
devlink: validate length of region addr/len
DEVLINK_ATTR_REGION_CHUNK_ADDR and DEVLINK_ATTR_REGION_CHUNK_LEN lack entries in the netlink policy. Corresponding nla_get_u64()s may read beyond the end of the message. Fixes: 4e54795a27f5 ("devlink: Add support for region snapshot read command") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/devlink.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 8e44dc5cde73..b831c5545d6a 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -5958,6 +5958,8 @@ static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
[DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 },
[DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING },
[DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 },
+ [DEVLINK_ATTR_REGION_CHUNK_ADDR] = { .type = NLA_U64 },
+ [DEVLINK_ATTR_REGION_CHUNK_LEN] = { .type = NLA_U64 },
[DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING },
[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 },
[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 },