From: Edward Adam Davis <eadavis@qq.com>
To: syzbot+4bcdddd48bb6f0be0da1@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [wireless?] UBSAN: array-index-out-of-bounds in ieee80211_request_ibss_scan
Date: Tue, 29 Apr 2025 18:23:06 +0800 [thread overview]
Message-ID: <tencent_7212DF0676098EEEF9EECD0C9F27D686DC06@qq.com> (raw)
In-Reply-To: <680fd171.050a0220.2b69d1.045e.GAE@google.com>
#syz test
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 4246d168374f..b709864c7ceb 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -1818,6 +1818,12 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
sdata->deflink.needed_rx_chains = local->rx_chains;
sdata->control_port_over_nl80211 = params->control_port_over_nl80211;
+ struct ieee80211_local *local = sdata->local;
+ if (local && local->int_scan_req) {
+ printk("sd: %p, l: %p, nch: %d, %s\n", sdata, local, local->int_scan_req->n_channels, __func__);
+ if (!local->int_scan_req->n_channels)
+ return -EINVAL;
+ }
wiphy_work_queue(local->hw.wiphy, &sdata->work);
return 0;
next prev parent reply other threads:[~2025-04-29 10:29 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-28 19:05 syzbot
2025-04-29 2:38 ` Edward Adam Davis
2025-04-29 2:55 ` syzbot
2025-04-29 8:40 ` Edward Adam Davis
2025-04-29 9:01 ` syzbot
2025-04-29 10:23 ` Edward Adam Davis [this message]
2025-04-29 10:32 ` syzbot
2025-04-29 10:58 ` Edward Adam Davis
2025-04-29 11:19 ` syzbot
2025-04-30 10:13 ` Edward Adam Davis
2025-04-30 10:34 ` syzbot
2025-05-07 11:30 ` Edward Adam Davis
2025-05-07 11:46 ` syzbot
2025-05-07 13:23 ` Edward Adam Davis
2025-05-07 13:44 ` syzbot
2025-05-09 18:35 ` Kees Cook
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