From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f174.google.com (mail-pg1-f174.google.com [209.85.215.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 04842303C88 for ; Sat, 17 Jan 2026 06:53:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768632809; cv=none; b=AdBnVXjlvtiBxHXVEG+I24Gq5/AUBsYJGB7td8Cv71oOr+7vGYR6JwjloW/e5XVz4cnTeKKcZGBsIDLABhXt5RLFlc+uHVQHVREdPkGJV6DOq1GAwULzYR/r43a+lL0y2II7+Nk8AAVs91l3LgF/ljIfbDjpN/8Alh3NKFKBYWg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768632809; c=relaxed/simple; bh=wa6vuB9JRnirEiTJdbuYjUdjPSbw4Z5u3/ha86tPljk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=CQ9CEXtL+V6AEbLEEsXAtASLxMXZZcoNRJau/K5/bYgTjVsuka6isywsbA7s78Irn9Dk3PJww/g0jJj0jbtF0E9/42tN2SIs8t5EXiyGeyjRQ0wtniKh6k4Imod9gdMhN9nLQYyJ/YSuoioyoas0h+2tMHqOZieyAkzoQ7DwB4A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=hk83zeIu; arc=none smtp.client-ip=209.85.215.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="hk83zeIu" Received: by mail-pg1-f174.google.com with SMTP id 41be03b00d2f7-c0c24d0f4ceso1046530a12.1 for ; Fri, 16 Jan 2026 22:53:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1768632807; x=1769237607; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Jl+ikO1mWiP4R9MtrTZgFyugi2SRJMPKhkoPAYsVxK0=; b=hk83zeIu05NT3c5oEVgCvqdb057LaSEV+iUbDtsSMbXTjA7CGPrlDccB/lafZ5ROo/ /scNh5F4DIc8yuAyVzV0o7DzEpEPhTfRyjQ21BuVjiYytAZHhfzbuYwOC9JhfJ7ijg+j RUGWPTJiL+UG3n6JmV5ZG7xa6FWWLOdi2uC4LtL9/u6wK8e99mSuy6I5BWNokd6XEln+ X1aZKZM413nPy9NNWeRIM77mcuLdQqFchmKk/ZcwMtS+ZxV2qvxk61ofpVytSpCCEQjO OjohvTBonhIc7oSVdHQX0O6BOADj1tT3bZzODvA170rE0wRQmbHn3La3qI2+El3dW0uF mYiw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768632807; x=1769237607; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=Jl+ikO1mWiP4R9MtrTZgFyugi2SRJMPKhkoPAYsVxK0=; b=U0RSSubqUn/VjnAhLe2xnfUj9XBG4XT9Ricp6gp65GV+0cOe4UQkmvDCIs8Ey6QZRV 2IUqx71/L2RIbKoaeevUkOGrSbbQZWAVkBWqeIZ1v3HZT3tXjq7zZMZ/ySmoBEVBJdC+ gzAgGyRtaPXnGmTbylwdEVSpMGJc6g45HEcrqbllsDZJC49Qr/Le7LHQltLTTBCU5R03 SchuHMbzU9Njrlxc0UpUBHgXTHflu0LZtJInpAvGUSmK9mE6f75xv/SjFyYUi91L4vZm +CmJibnfmZym3lt6wh0K6m2lRLu3Pzs/uqlFapV7Rk58zsBi/mdZOrMu6wR4Klbr10yD e/PA== X-Gm-Message-State: AOJu0Yxv+Fy/Fk3u5uIaBc3nsQJNtcSA+dpOtE3twEsjmqHhh18zc6nD S9IpGe5K2d7Ki+hzyBpnlv8IPl6dtW0KBbYU8EetJi3/65tiO4JoldqWpHw0Fg== X-Gm-Gg: AY/fxX55gD04TW0gdP7XRIlo2hVraiyVe7h9qNjm2gFPm2n07fe7vD5p7lL8k2tnA6k 90YCvK49YM5WXFjoeISlfUfFaWptOSJ3kWZ7SUEsQfImx+c/SgZAJqgirve/VS/0MDMUVPy66db RTGgwN4RY4NDYrHqwxkNO+p9WQ70mRi2YPbESvkxG5Nk5DFXN+wyIrmUySbfussvcUyxtygUPl/ ZXh2KERei0OV0dWtHLoTfhzJ9YySS9ExUu4u4j5kI/B0l4YtnbWxoMatSZHOjwKmo9v2ugQdI2I 01DK0ssy9iEwIsXnM0tx4YXmU3wmLKXWbU10SC4nVGu4AujPS3xNyyDhho1Md2G/LoJCGVerdRg zwPO7xvoJt/RrshEelkNKbvog8ZdRFFVtT1rtetldAnU+uHbcLpsLhIwNbx40b6DtUDrBRtfKVg 0giyjbkR8Jj/l5STjk9sp0S7+2WXSt X-Received: by 2002:a17:90b:2e08:b0:340:54a1:d703 with SMTP id 98e67ed59e1d1-3527329cef9mr4740206a91.35.1768632807329; Fri, 16 Jan 2026 22:53:27 -0800 (PST) Received: from localhost.localdomain ([111.125.235.106]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c5edf355ca7sm3711091a12.27.2026.01.16.22.53.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Jan 2026 22:53:27 -0800 (PST) From: Prithvi Tambewagh To: syzbot+df52f4216bf7b4d768e7@syzkaller.appspotmail.com, davem@davemloft.net, edumazet@google.com, horms@kernel.org, kuba@kernel.org, pabeni@redhat.com Cc: linux-hams@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, Prithvi Tambewagh Subject: Testing for netrom: fix KASAN slab-use-after-free in nr_dec_obs() Date: Sat, 17 Jan 2026 12:23:13 +0530 Message-Id: <20260117065313.32506-1-activprithvi@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <69694da9.050a0220.58bed.002a.GAE@google.com> References: <69694da9.050a0220.58bed.002a.GAE@google.com> Precedence: bulk X-Mailing-List: linux-hams@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit #syz test upstream be548645527a131a097fdc884b7fca40c8b86231 Signed-off-by: Prithvi Tambewagh --- net/netrom/nr_route.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c index b94cb2ffbaf8..788e375537fe 100644 --- a/net/netrom/nr_route.c +++ b/net/netrom/nr_route.c @@ -466,7 +466,6 @@ static int nr_dec_obs(void) nr_neigh = s->routes[i].neighbour; nr_neigh->count--; - nr_neigh_put(nr_neigh); if (nr_neigh->count == 0 && !nr_neigh->locked) nr_remove_neigh(nr_neigh); base-commit: be548645527a131a097fdc884b7fca40c8b86231 -- 2.34.1