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(parent: 00d702d) | patch
mac80211_hwsim: check that n_limits makes sense
authorJohannes Berg <johannes.berg@intel.com>
Tue, 15 Jan 2019 13:24:23 +0000 (14:24 +0100)
committerJohannes Berg <johannes.berg@intel.com>
Sat, 19 Jan 2019 08:10:30 +0000 (09:10 +0100)
commitb2ce5b8a115b4781a3d1e69ed0f44b13d28c182b
treeb6ab5300c24d59f0a51d3bec421728768c0c8ab3tree | snapshot
parent00d702d9fab9e42a3fde7c045e0bbc74d2d806b6commit | diff
mac80211_hwsim: check that n_limits makes sense

Under certain circumstances, radios created via netlink could
have n_limits be zero and no possible interface types, which
makes no sense. Reject this early to prevent a WARN_ON() in
cfg80211.

Fixes: efdd9c362215 ("mac80211_hwsim: allow setting iftype support")
Reported-by: syzbot+73fd8b0aa60c67fa4b60@syzkaller.appspotmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
drivers/net/wireless/mac80211_hwsim.c diff | blob | history
Linux Kernel Source Tree.