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From: Qing Wang <wangqing7171@gmail.com>
To: syzbot+b4c5ad098c821bf8d8bc@syzkaller.appspotmail.com
Cc: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org,
	daniel@iogearbox.net, eddyz87@gmail.com, haoluo@google.com,
	john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org,
	linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
	martin.lau@linux.dev, mathieu.desnoyers@efficios.com,
	mattbobrowski@google.com, mhiramat@kernel.org,
	rostedt@goodmis.org, sdf@fomichev.me, song@kernel.org,
	syzkaller-bugs@googlegroups.com, yonghong.song@linux.dev
Subject: Re: [syzbot] [bpf?] [trace?] KASAN: slab-use-after-free Read in bpf_trace_run9
Date: Wed,  4 Mar 2026 11:33:57 +0800	[thread overview]
Message-ID: <20260304033357.105915-1-wangqing7171@gmail.com> (raw)
In-Reply-To: <69a7276a.a70a0220.b118c.0011.GAE@google.com>

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 0378e83b4099..b1e3e9f59930 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -3783,6 +3783,8 @@ static void bpf_raw_tp_link_release(struct bpf_link *link)
 
 	bpf_probe_unregister(raw_tp->btp, raw_tp);
 	bpf_put_raw_tracepoint(raw_tp->btp);
+
+	tracepoint_synchronize_unregister();
 }
 
 static void bpf_raw_tp_link_dealloc(struct bpf_link *link)

  reply	other threads:[~2026-03-04  3:34 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-03 18:24 [syzbot] [bpf?] [trace?] KASAN: slab-use-after-free Read in bpf_trace_run9 syzbot
2026-03-04  3:33 ` Qing Wang [this message]
2026-03-04  3:38 ` Qing Wang
2026-03-04  4:06   ` syzbot

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