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(parent: e908bc4) | 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)
commitaa53f692ad91bc4ae1d809d80d4bc1b4bb86cb8a
treeb6ab5300c24d59f0a51d3bec421728768c0c8ab3tree | snapshot
parente908bc49288036b24fb4d38b3895c7cf4d941a60commit | 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: e78bec0d2ba0 ("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.