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authorJakub Kicinski <kuba@kernel.org>2022-10-19 15:35:51 -0700
committerDavid S. Miller <davem@davemloft.net>2022-10-21 13:18:05 +0100
commit46cdedf2a0fa20a99ca8be40bccde7487e13b77a (patch)
tree5e361a52619c0adedfae96200ed879dccdf46802
parente840d8f4a1b323973052a1af5ad4edafcde8ae3d (diff)
ethtool: pse-pd: fix null-deref on genl_info in dump
ethnl_default_dump_one() passes NULL as info. It's correct not to set extack during dump, as we should just silently skip interfaces which can't provide the information. Reported-by: syzbot+81c4b4bbba6eea2cfcae@syzkaller.appspotmail.com Fixes: 18ff0bcda6d1 ("ethtool: add interface to interact with Ethernet Power Equipment") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ethtool/pse-pd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ethtool/pse-pd.c b/net/ethtool/pse-pd.c
index 5a471e115b66..e8683e485dc9 100644
--- a/net/ethtool/pse-pd.c
+++ b/net/ethtool/pse-pd.c
@@ -64,7 +64,7 @@ static int pse_prepare_data(const struct ethnl_req_info *req_base,
if (ret < 0)
return ret;
- ret = pse_get_pse_attributes(dev, info->extack, data);
+ ret = pse_get_pse_attributes(dev, info ? info->extack : NULL, data);
ethnl_ops_complete(dev);