From: Yizhuo Zhai <yzhai003@ucr.edu>
To: Johannes Berg <johannes@sipsolutions.net>,
"David S. Miller" <davem@davemloft.net>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Potential uninitialized variables in cfg80211
Date: Tue, 8 Oct 2019 14:19:23 -0700 [thread overview]
Message-ID: <CABvMjLQ0Qgzk74yg4quZG4CMKy8pb6pV3XGm_cg4NRkTiCHaKA@mail.gmail.com> (raw)
Hi All:
net/wireless/chan.c:
Inside function cfg80211_chandef_compatible(), variable "c1_pri40",
" c2_pri40", "c1_pri80" and "c2_pri80" could be uninitialized if
chandef_primary_freqs() fails. However, they are used later in the if
statement to decide the control flow, which is potentially unsafe.
The patch is hard since we do not know the correct value to initialize them.
--
Kind Regards,
Yizhuo Zhai
Computer Science, Graduate Student
University of California, Riverside
next reply other threads:[~2019-10-08 21:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-08 21:19 Yizhuo Zhai [this message]
2019-10-09 6:45 ` Potential uninitialized variables in cfg80211 Johannes Berg
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