From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+d5dc2801166df6d34774@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [fs?] KASAN: slab-use-after-free Read in lockref_get
Date: Tue, 16 Jul 2024 19:20:34 +0800 [thread overview]
Message-ID: <20240716112034.1076-1-hdanton@sina.com> (raw)
In-Reply-To: <0000000000005c6453061d53bc0f@google.com>
On Mon, 15 Jul 2024 19:02:19 -0700
> syzbot found the following issue on:
>
> HEAD commit: 58f9416d413a Merge branch 'ice-support-to-dump-phy-config-..
> git tree: net-next
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16ed24b5980000
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git 58f9416d413a
--- x/net/mac80211/debugfs_sta.c
+++ y/net/mac80211/debugfs_sta.c
@@ -1284,6 +1284,12 @@ void ieee80211_sta_debugfs_add(struct st
void ieee80211_sta_debugfs_remove(struct sta_info *sta)
{
+ struct ieee80211_sub_if_data *sdata = sta->sdata;
+
+ if (!sdata->debugfs.subdir_stations)
+ return;
+ if (!sdata->vif.debugfs_dir)
+ return;
debugfs_remove_recursive(sta->debugfs_dir);
sta->debugfs_dir = NULL;
}
--
next prev parent reply other threads:[~2024-07-16 11:26 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-16 2:02 syzbot
2024-07-16 11:20 ` Hillf Danton [this message]
2024-07-16 14:04 ` syzbot
2024-07-16 12:48 ` syzbot
2024-07-17 8:31 ` Berg, Benjamin
2024-07-17 3:24 ` Edward Adam Davis
2024-07-17 4:19 ` syzbot
2024-07-17 10:58 ` Hillf Danton
2024-07-17 11:18 ` syzbot
2024-07-17 11:39 ` Edward Adam Davis
2024-07-17 12:53 ` syzbot
2024-07-17 13:19 ` Edward Adam Davis
2024-07-17 13:38 ` syzbot
2024-07-17 14:07 ` Edward Adam Davis
2024-07-17 21:38 ` syzbot
2024-07-18 10:39 ` Hillf Danton
2024-07-18 14:18 ` syzbot
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